first_imgAs citizens of this beautiful country, we have an important role when it comes to matters concerning the environment and our health. The environment is everybody’s business, since we all depend on it in one way or another. The Environmental Protection Agency (EPA) is committed to promoting sound environment management and sustainable use of Guyana’s natural resources. Equally, the Agency works to promote environmental awareness and public participation in developmental activities. Through our various campaigns, publications, ads, radio/TV interviews/programmes, EPA seeks to encourage all Guyanese to share their views, and make recommendations to ensure developmental projects have minimal adverse impacts on human health and the Environment.You would agree that all developmental projects have some impact on the environment. However, based on the nature of some projects, the impact might be greater than others. Therefore, the EPA encourages all citizens to develop an interest in what’s happening around them. Be in the know, and share your views on the projects especially to those requiring an Environmental Impact Assessment (EIA). These are usually projects where the potential impacts may be significant, or are unknown.This week’s article will highlight one of the many ways members of the public can participate in the decision making process to ensure that projects are implemented in a way that would not cause considerable damage to the environment and human health.Read public noticesOnce someone applies to the Environmental Protection Agency (EPA) for an Environmental Authorisation, and it is decided whether or not the person needs to conduct an Environmental Impact Assessment (EIA), the project is published in the newspapers. This allows members of the public to be aware of the project. A summary of the project will also be found on the Agency’s website. The public has the opportunity to share concerns, comments, recommendations etc., before the project commences.Attend public scoping meetingsWhat is a Public Scoping Meeting?As part of the name suggests, it is a meeting that specifically targets members of the public. When a developer/project proponent applies to the EPA for Environmental Authorisation to execute a proposed project, and the EPA determines that an EIA is required, as part of this process, such a meeting is necessary. This meeting provides the opportunity for residents of communities surrounding the proposed project site to provide their valuable suggestions, recommendations and concerns about the project idea. At a scoping meeting, the Developer and officials from the EPA are there to hear your thoughts about possible environmental impacts that should guide the EIA study.East Bank- East Coast (Diamond/Ogle) Road Linkage ProjectRecently, the Agency held two public scooping meetings, one at the Better Hope Community Centre on the East Coast and the other at Grove/Diamond Primary School on the East Bank, in an effort to engage the public on the Road Linkage Project. During the meetings, discussions were held around the project; what it entails and impacts to the environment. Citizens got a chance to share ways the project might affect their livelihood. In addition, the audience members were encouraged to share their opinions and ideas for developing the project.By reading public notices and attending public scoping meetings, citizens have a first-hand input into project development in Guyana. These inputs are necessary because, after a project has been completed, its impacts remain.Join us next week, when we will examine public scoping meetings further, including who organises these, what to expect etc. The Agency is committed to engaging citizens in matters of the environment, and we encourage persons to share their viewpoints on all projects.You can share your ideas and questions by sending letters to: “Our Earth, Our Environment”, C/O ECEA Programme, Environmental Protection Agency, Ganges Street, Sophia, GEORGETOWN, or email us at: or follow us on Facebook and Instagram.last_img read more

first_imgDONEGAL RELAY FOR LIFE – PICTURE SPECIAL was last modified: May 27th, 2012 by StephenShare 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

first_imgYou can use a plugin or manually add code if you want to display an author activity box that shows the user’s last login date in WordPress. Did you miss WordCamp Europe 2016 last weekend? Catch up on what happened with the WordCamp Europe 2016 Recap from WPEngine.CSS and HTMLAh, the memories. Do you remember all of these CSS image replacement methods? Which ones did you use? I used Fahrner, Phark, Phark with inline image, clip-path, and Nash. Fun discussion in the comments!If you’ve been wondering how to create a vertical slide-out menu with CSS transitions, this tutorial by Samuel Norton takes you through the process step-by-step. No JavaScript needed. Another trip down memory lane, as Zack Bloom talks about the languages which almost were CSS.Some interesting things missing from this proposal were any mention of units, all numbers being interpreted based on their context (font sizes were always in points for example). The Nielsen Norman Group and What Users Do research project on hamburger menus and hidden navigation damage UX showed that hiding navigation provides a worse user experience than visible or partially visible navigation.Stimulate user self-discovery in your product onboarding process, don’t assume new users want to learn how to use your product.Users don’t leave because they can’t figure it out — they leave because they don’t care to. While only supported in less than 65 percent of browsers, you may find the CSS text-align-last property to be useful in your projects. Using the CSS checkbox hack, Ana Tudor shows you how to recreating the Twitter heart animation with only one element, no images, and no JavaScript.What I Found InterestingWhat a wonderful idea! And one I wish more conferences would implement. HybridConf offers attendees a way to pay it forward, an initiative that allows you to donate additional funds beyond the conference registration fee. Donations are pooled together to offer free tickets to those who really need them. Want to get real-time feedback during your presentation? By adding real-time Q&A to your Google Slides, you can encourage your audience to participate and ask questions via their computer/computer devices during your talk. Happy birthday, Google+! Do you remember when it launched five years ago? I do. Our local social media group invited Google + VP Bradley Horowicz to speak about the new social network app.But none of the group leaders were able to get to the event on time, due to traffic congestion. I stepped up and acted as event host, introducing Horowicz to over 70 people gathered to hear about Google+. If you like what you’ve read today, share the post with your colleagues and friends.Want to make sure you don’t miss out on updates? Subscribe to get notified when new posts are published.Did I miss some resources you found this week? I’d love to see them! Post them in the comments below.Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to print (Opens in new window)Like this:Like Loading…RelatedJune 23, 2013: Weekly Roundup of Web Design and Development ResourcesEvery week I post a roundup of new web development and design resources I’ve learned about from the blogs I read and the people I follow on Twitter. This week’s roundup of resources highlights the recent W3C draft of the CSS Shapes Module, presentation and notes from last week’s UX…In “Web design & development links”Weekly Roundup of Web Design and Development Resources: October 9, 2015In this week’s roundup of web design and development resources, you’ll learn tips for getting started in user experience, find out how to set up Android TalkBack for accessibility testing, learn about using rem units in your designs, and more. If you’re new to my blog, each Friday I publish…In “Web design & development links”Weekly Roundup of Web Design and Development Resources: November 4, 2016In this week’s web design and development resources roundup, you’ll learn how Gainesville, Florida used design-thinking to reinvent itself, find out what to expect in the upcoming WordPress 4.7 release, discover how video captioning bridges the digital divide, and more. If you’re new to my blog, each Friday I publish…In “Web design & development links” That was fast! My friend Rian Rietveld spoke at WordCamp Europe last week about the state of accessibility in WordPress. She shared her resource post with text and slides; I’m honored to include the video of her talk, with captions! My Twitter feed is filled with announcements of online courses, but it’s rare for me to see reviews lately. This morning, I was pleasantly surprised to read this review of Susan Weinschenk’s UX Conceptual Model Design online course by Lacy White of UX Mastery. You’ll find an overview of the course and the presenter, along with pros and cons. AccessibilityMore than 14 million digital books will be made available to blind and print-disabled users, thanks to a partnership between the National Federation of the Blind and the HathiTrust Digital Library, hosted at the University of Michigan.Learn how screen reader users navigate websites, break down information on complex pages, and what helps them find info in Heydon Pickering’s responses to the screen reader strategy survey. Did you know Microsoft Word default heading styles now pass Web Content Accessibility Guidelines (WCAG) 2.0 AA?Do you “see” what I “see”? Color contrast for default H1, H2 & H3 for Microsoft Word docs now pass to #WCAG 2.0 AA? #a11y— Jennie Delisi (@AT_NMT) June 30, 2016 Substitute “law firm” with any other business type in the title and ask the same question, Is Your Law Firm’s Website Accessible? WordPressWordPress 4.6 Beta 1 is available for download and testing. Check out Shiny Updates, resource hints, and native fonts in the admin.Integrated with the Wayback Machine, the new Archiver WordPress Plugin will auto-generate snapshots of your WordPress site. I really enjoyed Thomas Maier’s Lessons Learned From Plugin Support post. Though written about a WordPress plugin, the post offers excellent communication tips and advice for anyone providing support, whether for a digital product, or not.I’ve learned that most users appreciate hard work, a friendly tone and genuine concern for their problem. In this week’s web design and development resources roundup, you’ll find out what questions to ask before choosing a prototyping tool, learn how screen reader users navigate websites, discover how to use the text-align-last CSS property, and more. If you’re new to my blog, each Friday I publish a post with some of my favorite user experience, accessibility, WordPress, CSS, and HTML posts I’ve read in the past week.Hope you find the resources helpful in your projects!Want more resources like these on a daily basis? Follow me @redcrew on Twitter. Tweet of the WeekFamily firstBe kindWork hardBe humbleRespect allLaugh loudlyWrite moreDo your bestStay teachableShow gratitudeForgiveGive more— Vala Afshar (@ValaAfshar) June 30, 2016User ExperienceWith dozens of tools to choose from, how do you select the best prototyping tool for your project? Fabricio Teixeira discusses what you need to ask before making a decision. First question he asks: do you really need a tool? Reminder: creating a good user experience is not only for the web.Moving to #carUX really opened my eyes as to how web-centric the #UX community is.— Emily Bowman (@awesomania) June 29, 2016last_img read more

first_imgMany of us have read through FMLA paperwork describing things we can do to assist our employees with acute or chronic pain. These instructions may ask us to pad the floor by their desks or give extended breaks to allow employees to rest their impacted area(s) of pain.One area that we often neglect is a discussion of how the pain is being managed. Is this employee taking powerful drugs that may sedate them? Are these drugs addictive? What could happen if our employee takes too much? Do you have customers that may be taking opioids for pain?There has been a four-fold increase in deaths over the last decade from opioid overdose (v et al., 2018). Recent work has noted that over forty-eight million Americans suffer from severe and chronic pain (Chidgey and Murphy, 2017). Chidgey and Murphy noted that “the number of opioids prescribed for the treatment of both acute and chronic pain has quadrupled” since 1999 (2017). The U.S. Bureau of Labor Statistics has shown a at least a 25 percent annual increase in overdose fatalities on the job since 2012 (BLS, 2017).The National opioid epidemic is clearly on our doorsteps but what can we do to help our teams?Our employees can benefit from bystander education. It is associated with better overdose recognition and overdose response by the administration of the life saving several drug Naloxone (Giglio et al., 2015).For the second annual Healthcare Simulation Awareness Week, let’s discuss simulation techniques and tools to improve team safety and communication. Below is an example of how every office can use a simple simulation to help prepare team members for an opioid crisis in their office.Arrange a meeting and have one or two team members act “different”. Be a few minutes late to the meeting yourself to give the team plenty of time interact and recognize that something is “not quite right” with their colleague(s). Your actors can act drowsy, mentally confused, euphoric, or pick other behaviors often associated with opioid overdose (SAMHSA, 2015).When you arrive at the meeting, debrief the team on their interactions while waiting. What did they notice that was different? Did they ask questions to try to figure out what was going on with them? Have any of them ever experienced an interaction like this?The need for the use of Naloxone in the field to save lives is becoming more widely recognized (Wheeler et al. 2015). More and more first responders are starting to carry the drugs needed to reverse an opioid overdose, If your workplace has decided to add Naloxone to the safety equipment available on site, discuss administration. If not, this sets up an opportunity to discuss if it is needed.Follow up in a few days with a coworker or customer having a mock crisis somewhere in the office and debrief using the TeamSTEPPS® tools.…#HcSimWeek18 and #PainAwarenessMonth References:Chidgey BA, Murphy BA. Evidence-Based Medicine and Regulatory Oversight: Opioid Prescribing for Treatment of Pain. N C Med J. 2017 Sep-Oct;78(5):310-311. doi: 10.18043/ncm.78.5.310.Giglio RE, Li G, DiMaggio CJ. Effectiveness of bystander naloxone administration and overdose education programs: a meta-analysis. Inj Epidemiol. 2015 Dec;2(1):10.Heavey SC, Chang YP, Vest BM, Collins RL, Wieczorek W, Homish GG. ‘I have it just in case’ – Naloxone access and changes in opioid use behaviours. Int J Drug Policy. 2018 Jan;51:27-35. doi: 10.1016/j.drugpo.2017.09.015.Substance Abuse and Mental Health Services Administration (SAMHSA). 2015. Substance Use Disorders U.S. Bureau of Labor Statistics (BLS). 2017. National census of fatal occupational injuries in 2016. Wheeler E, Jones TS, Gilbert MK, Davidson PJ. Opioid Overdose Prevention Programs Providing Naloxone to Laypersons — United States, 2015. Centers for Disease Control and Prevention. 64(23);631-635 read more

first_imgToday, virtually every resource that can be used to store valuable information offers users the option of activating two-factor authentication (2FA) for their accounts—from social networks and online games, to mail server and, naturally, banking and payment systems. Since we access these accounts more and more often from our mobile devices, which need extra protection from malicious attacks. Unfortunately, users tend to view extra safeguards as tedious and ignore them, leaving them vulnerable. However, new 2FA approaches are emerging that could help bring more protection, without the extra burden. The idea: Use the mobile device you’re trying to protect as the security token itself. Two-Factor IssuesThere are numerous ways to implement two-factor authentication, however many come with a few pros and cons.Most often, one-time passwords (OTP) are provided via SMS messages. On one hand, it’s very convenient. But there’s a flip side to it: The company incurs additional expenses because each SMS message costs money.A third party is involved in the authentication process (SMS gateway).Sometimes, it takes up to several minutes to receive an SMS messages, which is not always convenient for the customer and gives potential violators more time to intercept the message.Other systems use hardware tokens in the form of key chains, flash drives or bank cards, as well as OTP delivery via email. Hardware tokens are relatively reliable, but it is not always convenient to carry them with you. They can be lost, left behind, and require constant attention. The shortcomings of OTP delivery via email are virtually the same as those of SMS authentication.In the face of inconveniences like these, users often forego the additional account protection, seeing two-factor authentication as a burden. But, with new technologies such as iPhones, Android smartphones, and smartwatches, there’s a new, more convenient one-time password generation method. My company has been working with CWYS (Confirm What You See), a data signing function that’s an all-new development in the phrase of transaction security. Implemented as a mobile app, along with other features, it uses phones and smartwatches to help protect them against such cyber threats as automated transfer, replacement and data modification. How Confirming What You See Can HelpUntil very recently, violators were able to bypass two-factor authentication using certain types of malware. Here’s how it often plays out: After the system injection, it waits for a moment when a user initiates a legitimate transfer, at which point it shows the user a pop-up window with a message requesting, for example, that the user should wait while data is being verified.During this time, the injection performs some actions, hidden from the user, which result in funds being transferred to a drop account; if an OTP or PIN is required, the malware shows the user a fake password request page, but under another (fraudulent) pretext. The unsuspecting user enters the valid code, and the automated transfer system uses the data obtained to complete the transaction. But due to the activation of the CWYS functions, the OTP-generation process involves using not only the secret key, time or challenge, but also the transaction/transfer details such as the transfer amount, currency, recipient, etc. Thus, even if the password is intercepted, it will be of no use to the hacker. Safeguarding Gadgets And Their UsersSince people spend more and more time with their phones and watches, mobile devices seem like a natural area on which to focus security efforts.Approximately two billion people—a quarter of the entire population of this planet—are already using smartphones. In the U.S., Europe, China, Japan, and India, the number of Android and iOS smartphones owners exceeded 50%. More than a third of the world’s population is expected to be using smartphones by 2017. Developing OTP tokens for smartphones offers several advantages: Possibility to choose the OTP-generation algorithm (according to counter, server response, time).Additional application protection through the PIN code.Possibility to choose the lengths of the one-time password (6 or 8 characters).Possibility to create several tokens on one device.No need to replace the battery, which is often the case with hardware tokens.Possibility to install the application on Android smart watches.Data signing functions (CWYS), which protects from such latest hacking threats as automated transfer and replacement.Two-factor authentication technologies are continuing to develop at a prodigious rate. Manufacturers driving two-factor authentication take into account the latest trends in the field of electronics, analyze potential customers’ requirements and offer the most convenient solutions. This is crucial work, particularly on our most-used gadgets. The industry must find ways to popularize two-factor authentication on them by making it both secure and convenient. That’s the best way to ensure more protection of every Internet user’s personal information.Note: Due to an editing error, an earlier version of this article included material that violated ReadWrite’s guest-post guidelines. The article has been updated.Lead photo by Yuri Samoilov maxim oliynyk Related Posts Guest author Maxim Oliynyk is co-founder of Protectimus, an OAuth-certified two-factor authentication solution.You have probably already heard it said: Important information needs to be kept as secure as possible, especially if it is stored online.But you cannot rely on a regular login and password for that. Such credentials can be easily surveilled, guessed or obtained through one of the hundreds of hacking tricks. Fortunately, there are more effective data protection methods, one of which is two-factor authentication tested over a long period of time and by millions of users. See also: How Google Play Security Still Falls Short How Connected Communities Can Bolster Your Busi… 6 Best Video Conferencing Services for Small Bu… Top 5 Areas Where Companies Want IoT Solutions With This One Question, You’ll Never Need an Ic… Tags:#2FA#mobile#security#two factor authentication last_img read more

first_imgThe American Institute of Certified Public Accountants (AICP) believes that the definition of interest in IRC Section 163(j) proposed regulations is too broad and should apply only to interest from transactions that involve debt. The definition in the proposed regulations goes beyond that to include amounts not related to debt instruments but that:affect the cost of a transaction, orare closely related to interest.The AICPA believes that this definition is not warranted and overly burdensome to taxpayers. The AICPA stated its conclusion as part of a number of comments it issued on the proposed regulations for the  Section 163(j) deduction limit on business interest.Business Interest Deduction LimitA taxpayer’s deduction of business interest expenses paid or incurred for tax years beginning after 2017 is limited to the sum of:the taxpayer’s business interest income for the tax year,30 percent of the taxpayer’s adjusted taxable income (ATI), andthe taxpayer’s floor plan financing interest.Any disallowed business interest is carried forward indefinitely. The limit applies to all taxpayers except a small business with average gross receipts in the prior-three year period of $25 million or less ($26 million for 2019). It also does not apply to a trade or business providing services as an employee, real property or farming businesses that make an election out, and certain regulated utility businesses.Definition of Interest Under Regs.The statutory language provides that business interest expense for purposes of Section 163(j) limit is any interest expense that is properly allocable to a trade or business of the taxpayer for the tax year. It also includes any disallowed business interest carryforward from a previous tax year. It does not include investment interest in the case of a non-corporate taxpayer.Under the proposed regulations, interest is defined as:any amount paid, received, or accrued as compensation for the use or forbearance of money under the terms of a contract or instrument that is treated as debt;any amount closely related to interest and that affects the economic yield or cost of funds of a transaction involving interest (e.g., debt issuance costs, commitment fees, etc.); andother amounts predominantly associated with the time-value of money (i.e., anti-avoidance rule).The Preamble to the proposed regulations state that this definition is designed to encompass all transactions that are commonly understood to generate interest. Thus, they go beyond the language of Section 163(j) to include payments that are not made with respect to a debt instruments to prove certainty and to avoid incentivize taxpayers from entering into distortive transactions.‘Extremely Broad’ DefinitionThe AICPA believes that the definition of interest is ‘exceptionally broad’ in comments to the IRS on the proposed regulations. It recommends that the proposed rules be amended to define interest as any amount generally treated as interest under other provisions of the Code or regulations.The AICPA argues that Section 163(j) does not present any special policy consideration that warrants defining interest more broadly than for other federal tax purposes (e.g., withholding and information reporting, foreign tax credit). Also, there is nothing in legislative history for Section 163(j) to indicate that Congress intended to expand the definition of interest to transactions that do not involve indebtedness.The Preamble to the proposed regulations states that treating amounts that are closely related to interest is not new. This occurs in the Reg. §1.861-9T regarding the allocation and apportionment of interest expenses and in Reg. §1.954-2 regarding foreign personal holding company income of a controlled foreign corporation.Related to Debt?The AICPA argued that the underlying statute for these regulations have a different purpose than Section 163(j). The purpose of Section 163(j) is to limit the deduction of interest under Section 163(a). A taxpayer is generally allowed a deduction under Section 163(a) only for interest paid or accrued in the tax year on indebtedness.The term indebtedness is not defined in the IRC or regulations. However, under case law and other guidance deductible interest under Section 163(a) generally must pertain to the debt of taxpayer and result from a debtor-creditor relationship based upon a valid and enforceable obligation to pay a fixed or determinable sum of money.According to the AICPA, interest for Section 163(j) should be similarly defined. Alternatively, it recommends that the regulations should allow for an item-by-item in order to determine if any amount is interest for Section 163(j) purposes to be consistent with federal tax policy. By John Buchanan, JD, LLMLogin to read more on CCHAnswerConnect.Not a subscriber? Sign up for a free trial or contact us for a representative.last_img read more

first_imgWolters Kluwer, Inc. has projected tax brackets and other inflation-adjusted amounts for the 2020 tax year. Highlights of projected 2020 amounts, including tax brackets for both ordinary income tax and capital gains tax, can be found at the following link.See Wolters Kluwer’s Projections for Inflation-Adjusted Tax Brackets and Other AmountsTax Cuts and Jobs Act and the Consumer Price IndexBeginning with the 2018 tax year, most inflation adjustments replaced the Consumer Price Index with the Chained Consumer Price Index, as required by the Tax Cuts and Jobs Act.  The change in the calculation is highly technical, but the end result is much smaller increases in inflation adjustments.On September 12, 2019, the Bureau of Labor Statistics released Consumer Price Index amounts for August 2019, enabling the calculation of 2020 amounts.New Items under Tax Cuts and Jobs ActIn addition to changing the way inflation adjustments are calculated, the Tax Cuts and Jobs Act also produced a number of new items to adjust annually.  These include:Threshold amounts for the Section 199A qualified business income deduction, which for 2020 are projected to be $326,600 for joint filers and $163,300 for single filersGross income ceiling for corporations and partnerships to use the cash method of accounting, which for 2020 is projected to remain $26,000,000The refundable amount of the child tax credit, which for 2020 is projected to be $1,400The personal exemption amount for 2020 is projected to be $4,300. While the Tax Cuts and Jobs Act eliminated the personal exemption deduction, the personal exemption amount is still used in a number of instances, such as the qualifying relative test for head of household filing status, and a qualified disability trust’s deduction in lieu of a personal exemption.Official 2020 AmountsThe IRS should release official amounts for the 2020 tax year in late October or early November. Cost of living adjustments for retirement planning are based on a different set of numbers released by the Bureau of Labor Statistics, and are typically released in late October.  Amounts for the 2019 tax year were released on November 15, 2018.By Michael Henaghan, J.D., LL.MLogin to read more on CCHAnswerConnect.Not a subscriber? Sign up for a free trial or contact us for a representative.last_img read more

first_imgA new study suggests chimps have more fast-twitch muscle fibers than humans. How chimps outmuscle humans USO/iStockphoto By Michael PriceJun. 26, 2017 , 3:00 PM Contrary to popular lore that portrays chimpanzees as having “super strength,” studies have only found modest differences with humans. But our closest relatives are slightly stronger by several measures, and now a study comparing the muscle fibers of different primates reveals a potential explanation: Humans may have traded strength for endurance, allowing us to travel farther for food.To determine why chimpanzees are stronger than humans—at least on a pound-for-pound basis—Matthew O’Neill, an anatomy and evolution researcher at the University of Arizona College of Medicine in Phoenix, and colleagues biopsied the thigh and calf muscles of three chimps housed at the State University of New York at Stony Brook. They dissected the samples into individual fibers and stimulated them to figure out how much force they could generate. Comparing their measurements to known data from humans, the team found that, at the individual fiber level, muscle output was about the same.Given that different fibers throughout the muscle might make a difference, the researchers conducted a more thorough analysis of tissue samples from pelvic and hind limb muscles of three chimpanzee cadavers from various zoos and research institutes around the United States. Previous studies in mammals have found that muscle composition between trunk, forelimb, and hind limb muscles is largely the same, O’Neill says, so he’s confident the samples are representative across most of the chimp’s musculature. The team used a technique called gel electrophoresis to break down the muscles into individual muscle fibers, and compared this breakdown to human muscle fiber data.Sign up for our daily newsletterGet more great content like this delivered right to you!Country *AfghanistanAland IslandsAlbaniaAlgeriaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBolivia, Plurinational State ofBonaire, Sint Eustatius and SabaBosnia and HerzegovinaBotswanaBouvet IslandBrazilBritish Indian Ocean TerritoryBrunei DarussalamBulgariaBurkina FasoBurundiCambodiaCameroonCanadaCape VerdeCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos (Keeling) IslandsColombiaComorosCongoCongo, The Democratic Republic of theCook IslandsCosta RicaCote D’IvoireCroatiaCubaCuraçaoCyprusCzech RepublicDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland Islands (Malvinas)Faroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHeard Island and Mcdonald IslandsHoly See (Vatican City State)HondurasHong KongHungaryIcelandIndiaIndonesiaIran, Islamic Republic ofIraqIrelandIsle of ManIsraelItalyJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKorea, Democratic People’s Republic ofKorea, Republic ofKuwaitKyrgyzstanLao People’s Democratic RepublicLatviaLebanonLesothoLiberiaLibyan Arab JamahiriyaLiechtensteinLithuaniaLuxembourgMacaoMacedonia, The Former Yugoslav Republic ofMadagascarMalawiMalaysiaMaldivesMaliMaltaMartiniqueMauritaniaMauritiusMayotteMexicoMoldova, Republic ofMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorwayOmanPakistanPalestinianPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalQatarReunionRomaniaRussian FederationRWANDASaint Barthélemy Saint Helena, Ascension and Tristan da CunhaSaint Kitts and NevisSaint LuciaSaint Martin (French part)Saint Pierre and MiquelonSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSint Maarten (Dutch part)SlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia and the South Sandwich IslandsSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwazilandSwedenSwitzerlandSyrian Arab RepublicTaiwanTajikistanTanzania, United Republic ofThailandTimor-LesteTogoTokelauTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluUgandaUkraineUnited Arab EmiratesUnited KingdomUnited StatesUruguayUzbekistanVanuatuVenezuela, Bolivarian Republic ofVietnamVirgin Islands, BritishWallis and FutunaWestern SaharaYemenZambiaZimbabweI also wish to receive emails from AAAS/Science and Science advertisers, including information on products, services and special offers which may include but are not limited to news, careers information & upcoming events.Required fields are included by an asterisk(*)Muscle fibers mostly come in two flavors: myosin heavy chain (MHC) I, which are slow-twitch fibers, and MHC II, or fast- twitch fibers. The latter contract more quickly and generate more force in quick bursts, but fatigue more quickly than slow-twitch fibers. The researchers found that whereas human muscle contains, on average, about 70% slow-twitch fibers and 30% fast-twitch fibers, chimpanzee muscle is about 33% slow-twitch fibers and 66% fast-twitch fibers.The team ran its data through a computer program that built virtual muscles corresponding to the fiber compositions of humans and chimps, then simulated how much power each muscle could theoretically generate during a single burst. The chimp muscle, they learned, was about 1.35 times more powerful than the human one, they report today in the Proceedings of the National Academy of Sciences.When the researchers then looked at the muscle fiber breakdown in mammals such as mice, guinea pigs, cats, dogs, horses, lemurs, and macaques, they found that only two animals regularly had more slow-twitch fibers: a small, lethargic primate called the slow loris and humans.O’Neill says though fast-twitch fibers might give chimps and other mammals an advantage during high-intensity strength tasks like lifting heavy rocks or climbing a tree, humans’ slow-twitch fibers are better suited for endurance tasks like distance running. The researchers propose that early hominins’ muscles gradually became dominated by slow-twitch fibers as they gave up arboreal life and adapted to traveling across long distances to hunt and forage. Another benefit of slow-twitch fibers is they consume less metabolic energy, he adds, potentially freeing the body to devote more resources to other adaptations, like bigger brains.Anne Burrows, a biological anthropologist at Duquesne University in Pittsburgh, Pennsylvania, whose research focuses on primate biomechanics but was not involved with the work, says the study is well-designed and convincing. “Instead of thinking about the results as pointing to greater strength in chimpanzees, we might instead want to consider … what the greater percentage of slow-twitch fibers in humans means to our unique locomotion method, bipedalism,” Burrows says. “I think that’s the bigger story here.”Burrows does have reservations about the authors’ evolutionary arguments. “Before I fully buy into that interpretation, I would like to see data from upper limb musculature in chimpanzees and humans, and I would like data from gorillas and orangutans,” she says.Adrienne Zihlman, an anthropologist at the University of California, Santa Cruz, is more skeptical still of the study’s evolutionary ramifications. There simply isn’t enough known about the musculature of early hominins to speculate about their muscle fiber distributions, she says, so linking slow-twitch fibers to human evolution is a stretch. “The muscle fiber finding is an interesting factoid, but the tale that they spin based on that just doesn’t come from their data.”last_img read more

first_imgDefending champion Marin Cilic and unseeded Roberta Vinci were the first through to the quarter-finals of the U.S. Open on Tuesday, and both needed to go the distance against tough French resistance.With Serena Williams and sister Venus and a host of A-list celebrities waiting in the wings along with a prime time television audience for their marquee semi-final, Cilic and Jo-Wilfried Tsonga kept everything on hold as the ninth-seeded Croat battled his way to a 6-4 6-4 3-6 6-7(3) 6-4 win over the scrappy Frenchman.Earlier, Italian Vinci needed a similar gritty effort to see off another player from France, Kristina Mladenovic, 6-3 5-7 6-4 on another sizzling hot day at Flushing Meadows.Cilic squandered three match points in the fourth set but came up strong in the fifth to stretch his Flushing Meadows win streak to 12 matches.Also read: Sania Mirza-Martina Hingis duo storms into US Open semis Tsonga saved two match points in the 10th game before holding for 5-5, and another in the 12th game to force a tiebreak that he won 7-3 to set up the climactic fifth set.Cilic fought back in the final set to break Tsonga at love for a 3-2 lead and served out the set, cashing in his fifth match point in a match that stretched for four hours.Demanding, yes, but nearly as hot as the conditions faced by Vinci and Mladenovic who played the opening match of the day on a baking Arthur Ashe Stadium court.The 32-year-old Vinci showed off her fighting spirit while Mladenovic, a decade younger, wilted in the punishing conditions using up all of her medical timeouts during the two-hour, 32-minute test.advertisementA doubles specialist with a career grand slam on her resume, Vinci finally cracked the solo code to move onto the final four in singles at a major for the first time in her 18-year career.Also read: Andy Murray knocked out of US Open by Kevin Anderson  “It’s an amazing moment for me. Unbelievable,” beamed 43rd-ranked Vinci. “My first semi-final in my career.Vinci, well-rested after receiving a walkover into the quarter-finals when Canadian Eugenie Bouchard was forced out of the tournament with a concussion, was pushed but never panicked against the young Frenchwoman.After splitting the opening two sets the turning point of the match came at 3-3 in the third, when Mladenovic double-faulted twice to hand Vinci a break chance and the Italian gratefully converted to take charge.”It’s not easy to play with your sister, and Serena has a lot of pressure, I think,” said Vinci.”I’m so happy to be in the semi-finals so if I play Serena or Venus it doesn’t matter.”last_img read more

first_imgElena Vesnina denied Venus Williams another comeback win, while Kristina Mladenovic roared back from a set and a break down to beat Caroline Wozniacki on Thursday to reach the semi-finals of the BNP Paribas Open at Indian Wells.Williams, who this week survived match points against Jelena Jankovic and was down a break in the third against Peng Shuai, fought off three match points in the eighth game and had six chances to bring it back on serve in the next before the 14th-seeded Russian finally held to finish a gutsy 6-2, 4-6, 6-3 win. (Also read: Stan Wawrinka wins Dominic Thiem thriller to reach Indian Wells semis)The 30-year-old Vesnina, a Wimbledon semi-finalist last year, ripped a forehand putaway off a backhand from 12th seed Williams that clipped the netcord to end the two hour 11 minute battle in the California desert.”At the end of the match, I don’t know how I won that game from 0-40,” Vesnina, who had ousted second seed Angelique Kerber to reach the quarters, said in an on-court interview.”In the first set she was a little bit slow, missed some easy balls. But then in the second set, Venus was back and I was in trouble.”Mladenovic, the 28th seed, continued an impressive run of form beating 13th seed and 2011 winner Wozniacki 3-6, 7-6(4), 6-2 to reach her first Premier Mandatory semi-final and guarantee her debut in the Top 20 in next week’s WTA rankings.The 23-year-old Frenchwoman improved to 16-5 on the season, a run which includes her first career title in St. Petersburg, and an appearance in the final earlier this month in Acapulco.advertisement”She’s on fire. So am I,” said Vesnina. “One of us can be in the final. We will see tomorrow.”Mladenovic wasted a slew of opportunities, squandering nine break points as she fell behind 1-5 in the opening set.”I was very frustrated with the beginning of the match. I was hitting a lot of unforced errors,” she said.Mladenovic recovered from an early break in the second to move ahead 5-3 before ultimately leveling the match 7-4 in the tiebreak.Painting the lines in the third set, Mladenovic broke twice and served out the two hour 33 minute win.Third seed Karolina Pliskova of the Czech Republic will meet eighth-seeded Russian Svetlana Kuznetsova in the other women’s semi-final.last_img read more