peri Grand Canyon National Park Changes Entrance Fee to Address Infrastructure Needs & Improve Visitor Experience By www.nps.gov Published On :: Thu, 12 Apr 2018 08:04:00 EST The National Park Service (NPS) announced today that Grand Canyon National Park will modify its entrance fees beginning June 1, 2018 to provide additional funding for infrastructure and maintenance needs that enhance the visitor experience. https://www.nps.gov/grca/learn/news/2018-entrance-fee-changes.htm Full Article
peri Fire crews are actively working to suppress the lightning ignited Imperial Fire. Currently the fire is estimated to be three (3) acres in size and is located along the Cape Royal Road near Vista Encantada. By www.nps.gov Published On :: Wed, 18 Jul 2018 12:49:00 EST Fire crews are actively working to suppress the lightning ignited Imperial Fire. Currently the fire is estimated to be three (3) acres in size and is located along the Cape Royal Road near Vista Encantada. https://www.nps.gov/grca/learn/news/imperial-fire-being-suppressed-on-north-rim-of-grand-canyon-national-park-20180718.htm Full Article
peri Ikes Fire Spreads Naturally As Crews Work To Secure Planning Area Perimeter By www.nps.gov Published On :: Thu, 15 Aug 2019 06:28:00 EST Warm, dry weather conditions have led to additional growth on the Ikes Fire, which is now approximately 1,535 acres and 20% contained. Smoke settled into the Grand Canyon overnight as temperatures cooled but smoke may begin to lift as temperatures warm up throughout the day. https://www.nps.gov/grca/learn/news/ikes-fire-spreads-crews-secure-planning-area-20190815.htm Full Article
peri Ikes Fire Holding Well Within Perimeter By www.nps.gov Published On :: Mon, 19 Aug 2019 05:57:00 EST Yesterday, crews continued to patrol and hold the northern boundary and improve line. Firefighters on the southern boundary lit debris piles constructed in the early phases of line preparation. This tactic deprives the fire of excess fuel as it spreads to the west. https://www.nps.gov/grca/learn/news/ikes-fire-holding-well-within-perimeter.htm Full Article
peri Grand Canyon National Park Announces 2021 Noncommercial River Trip Lottery Period By www.nps.gov Published On :: Fri, 31 Jan 2020 01:52:00 EST The National Park Service will begin accepting applications for noncommercial river trip permits to raft the Colorado River through Grand Canyon National Park on Saturday, Feb. 1, 2020. The permits are for specific launch dates within calendar year 2021. A total of 462 permits will be available for 12- to 25-day river trips. Applications will be accepted online through noon MST on Tuesday, Feb. 25, 2020. https://www.nps.gov/grca/learn/news/2021-river-lottery-01-31-2020.htm Full Article
peri Ed Keable Named Superintendent of Grand Canyon National Park By www.nps.gov Published On :: Fri, 03 Apr 2020 05:46:00 EST The National Park Service (NPS) announced today the appointment of Edward Keable as the superintendent of Grand Canyon National Park. Keable, a 34-year veteran of federal service, will begin his new role within the next 60 days. https://www.nps.gov/orgs/1207/grand-canyon-superintendent-ed-keable.htm Full Article
peri Bureau of Reclamation News Release: Water experiment to be conducted along the Colorado River while maintaining hydropower production this summer By www.nps.gov Published On :: Thu, 30 Apr 2020 09:58:00 EST From May 1 through August 31, the Department of the Interior will conduct a Macro-invertebrate Production Flow at Glen Canyon Dam. This experiment, also known as a Bug Flow, aims to improve egg-laying conditions for aquatic insects, which are the primary food source for endangered and native fish in the Colorado River. https://www.nps.gov/grca/learn/news/bor-news-water-experiment-to-be-conducted-along-the-colorado-river-while-maintaining-hydropower-production-this-summer.htm Full Article
peri CSSplay - Responsive experimental 'viewport' layout By www.cssplay.co.uk Published On :: 2015-06-03 A second experimental CSS responsive single page website using 'viewport', suitable for all modern browsers and OS (fails in Safari PC) Full Article
peri CSSplay - Responsive experimental 'viewport' grid layout By www.cssplay.co.uk Published On :: 2015-06-11 Another experimental CSS responsive single page website using 'viewport' with a 3 x 3 grid, suitable for all modern browsers and OS (fails in Safari PC) Full Article
peri Necessary work: discovering old forests, new outlooks, and community on the H.J. Andrews Experimental Forest, 1948-2000. By www.fs.fed.us Published On :: Fri, 11 May 2007 15:20:00 PST The H.J. Andrews Experimental Forest (Andrews Forest) is both an idea and a particular place. It is an experimental landscape, a natural resource, and an ecosystem that has long inspired many people. On the landscape of the Andrews Forest, some of those people built the foundation for a collaborative community that fosters closer communication among the scientists and managers who struggle to understand how that ecosystem functions and to identify optimal management strategies for this and other national forest lands in the Pacific Northwest. People who worked there generated new ideas about forest ecology and related ecosystems. Working together in this place, they generated ideas, developed research proposals, and considered the implications of their work. They functioned as individuals in a science-based community that emerged and evolved over time. Individuals acted in a confluence of personalities, personal choices, and power relations. In the context of this unique landscape and serendipitous opportunities, those people created an exceptionally potent learning environment for science and management. Science, in this context, was largely a story of personalities, not simply a matter of test tubes, experimental watersheds, or top-down management sponsored by a large federal agency or university. Ideas flowed in a constructed environment that eventually linked people, place, and community with an emerging vision of ecosystem management. Drawing largely on oral history, this book explores the inner workings and structure of that science-based community. Science themes, management issues, specific research programs, the landscape itself, and the people who work there are all indispensable components of a complex web of community, the Andrews group. The first four chapters explore the origins of the Forest Service decision to establish an experimental forest in the west-central Oregon Cascades in 1948 and the people and priorities that transformed that field site into a prominent facility for interdisciplinary research in the coniferous biome of the International Biological Programme in the 1970s. Later chapters explore emerging links between long-term research and interdisciplinary science at the Andrews Forest. Those links shaped the group's response to concerns about logging in old-growth forests during the 1980s and 1990s. Concluding chapters explore how scientists in the group tried to adapt to new roles as public policy consultants in the 1990s without losing sight of the community values that they considered crucial to their earlier accomplishments. Full Article
peri Large-scale silviculture experiments of western Oregon and Washington By www.fs.fed.us Published On :: Thu, 16 Aug 2007 09:00:00 PST We review 12 large-scale silviculture experiments (LSSEs) in western Washington and Oregon with which the Pacific Northwest Research Station of the USDA Forest Service is substantially involved. We compiled and arrayed information about the LSSEs as a series of matrices in a relational database, which is included on the compact disc published with this report and available online at http://www.fs.fed.us/pnw/research/lsse. The LSSEs are both spatially and temporally large scale, with experimental treatment units between 5 and 100 acres and proposed study durations of 20 to 200 years. A defining characteristic of the LSSEs is that a broad range of response variables are measured to characterize the response of forest ecosystems to experimental treatments. We discuss the general value and limitations of the LSSEs and highlight some possible roles that can be played by the LSSEs in addressing management issues emerging at the beginning of the 21st century. Full Article
peri Emergent lessons from a century of experience with Pacific Northwest timber markets By www.fs.fed.us Published On :: Thu, 01 May 2008 08:15:00 PST Timber markets in the United States are areas where timber prices tend to be uniform because of the continuous interactions of buyers and sellers. These markets are highly competitive, volatile, and change relentlessly. This paper looks at how market interactions in the Pacific Northwest have responded to changes in underlying determinants of market behavior and government actions that have influenced supply or demand. Several messages emerge from timber markets about price reporting and changing definitions of price, long-term price trends, timber as an investment, impacts of market intervention, relations among different markets, and implications for future stewardship. The enduring message is that landowners and managers respond to price signals arising from market interactions, and their actions create the forests inherited by future generations. Full Article
peri Building a citizen-agency partnership among diverse interests: the Colville National Forest and Northeast Washington Forestry Coalition Experience By www.fs.fed.us Published On :: Thu, 31 May 2012 14:55:00 PST Concerns about forest health and the threat of wildfire across the Western United States increasingly provide the impetus for communities to find land management solutions that serve multiple interests. Funding and procedural changes over the past decade have positioned federal agencies to put greater emphasis on multistakeholder partnerships and public outreach efforts. Partnerships build slowly over time, but can result in a healthier resource, reduced fire risk, greater stability for agency planning processes, and more resilient communities. Drawing on interviews with stakeholders representing broad interests in a partnership between the Northeast Washington Forestry Coalition and the Colville National Forest, we examine some of the critical factors leading to the partnership's success and identify challenges along the way. We illustrate how the citizens of Colville, Washington, overcame conflicts by learning to communicate their interests and use existing resources to advance a variety of goals, ranging from fuels reduction and active forest management to roadless area and wilderness management. We highlight a set of important organizational themes that have emerged from Colville to provide managers and other stakeholders with ideas for similar efforts. Full Article
peri Precommercial thinning: implications of early results from the Tongass-Wide Young-Growth Studies experiments for deer habitat in southeast Alaska. By www.fs.fed.us Published On :: Fri, 17 May 2013 13:50:00 PST This report documents the results from the first “5-year” round of understory responses to the Tongass-Wide Young-Growth Studies (TWYGS) treatments, especially in relation to their effects on food resources for black-tailed deer (Odocoileus hemionus sitkensis). Responses of understory vegetation to precommercial silviculture experiments after their first 4 to 8 years posttreatment were analyzed with the Forage Resource Evaluation System for Habitat (FRESH)-Deer model. The studies were conducted in western hemlock (Tsuga heterophylla)-Sitka spruce (Picea sitchensis) young-growth forests in southeast Alaska. All four TWYGS experiments were studied: (I) planting of red alder (Alnus rubra) within 1- to 5-year-old stands; (II) precommercial thinning at narrow and wide spacings (549 and 331 trees per hectare, respectively) in 15- to 25-year-old stands; (III) precommercial thinning at medium spacing (420 trees per hectare) with and without pruning in 25- to 35-yearold stands; and (IV) precommercial thinning at wide spacing (203 trees per hectare) with and without slash treatment versus thinning by girdling in >35-year-old stands. All experiments also included untreated control stands of identical age. FRESHDeer was used to evaluate the implications for deer habitat in terms of forage resources (species-specific biomass, digestible protein, and digestible dry matter) relative to deer metabolic requirements in summer (at two levels of requirements—maintenance only vs. lactation) and in winter (at six levels of snow depth). Full Article
peri WJCT Public Media Launches The Jacksonville Music Experience By www.allaccess.com Published On :: Fri, 08 May 2020 01:20:01 -0700 In MARCH, WJCT PUBLIC MEDIA, which operates PBS WJCT TV and NPR WJCT/JACSONVILLE, launched the JACKSONVILLE MUSIC EXPERIENCE (JME). The new initiative was spearheaded by CEO DAVID … more Full Article
peri 28 Patient and consumer groups urge the administration to implement a special enrollment period for Healthcare.gov By newsroom.heart.org Published On :: Wed, 01 Apr 2020 19:50:00 GMT WASHINGTON, D.C., April 1, 2020 – 28 patient and consumer groups representing millions of people nationwide with pre-existing health conditions issued the following statement regarding the administration’s decision not to initiate a special enrollment... Full Article
peri Work-related stress linked to increased risk for peripheral artery disease By newsroom.heart.org Published On :: Tue, 28 Apr 2020 09:00:00 GMT Research Highlights: People who reported work-related stress were more likely to be hospitalized for treatment of peripheral artery disease compared to those who did not report work-related stress. Work-related stress, or job strain, refers to... Full Article
peri E-cigarette users experience vascular damage similar to that of smokers of combustible cigarettes By newsroom.heart.org Published On :: Wed, 29 Apr 2020 09:00:00 GMT Research Highlights: Young adults using e-cigarettes experienced arterial stiffness and blood vessel damage similar to those who smoke traditional cigarettes. There was no evidence that using e-cigarettes reduced the cardiovascular injury associated... Full Article
peri Miller: Stick with an experienced team By www.thegazette.com Published On :: Tue, 5 May 2020 14:01:05 -0400 I have been your County Auditor for over 13 years. I am on the ballot in the Democratic primary election and I have an opponent.I have been your County watchdog since 2007. I have been a nationally certified election administrator since 2009. I was Iowa’s County Auditor of the Year in 2013.I am for automatic voter registration when citizens turn 18.I am for improved post election audits, e.g., risk-limiting audits.I am for allowing felons to vote after they have served their sentences.I am for all vote-by-mail elections to reduce the risk of spreading COVID-19.I oversee a great team! The anchor of our team is First Deputy Auditor Becky Shoop. She has been with the county for over 40 years. Her institutional knowledge is indispensable. She provides guidance not only to our office, but other county offices.When a vacancy occurred on my elections team a few years ago, I hired local attorney Rebecca Stonawski as Deputy Commissioner of Elections. Her organizational skills and legal background have proved to be invaluable as election laws change from year to year.And finally, after I successfully lobbied to get the Code of Iowa changed so that county auditors can audit county accounts and funds, I promoted Rhonda Betsworth, a CPA (certified public accountant), to Deputy Auditor to oversee the County’s accounting and property tax systems.I am a U.S. Army Military Police veteran, former IBEW member, former Chair of the Linn County Democrats, and former Mayor of Robins.I am a member of Rotary, the American Legion, and the Catholic Church. My wife and I have been married for 42 years. We have three adult married children and nine grandchildren. I have been a dairy farmer, a deputy sheriff, an electronics technician for AT&T, a senior manager for Teleconnect and MCI, a senior project manager for Siemens, and an IT Director for Four Oaks of Iowa. I have owned my own profitable technology business.This is not the time to hire an amateur to run your elections. This is not the time to hand watchdog duties over to a former county supervisor who quit to take a job in DC. This is not the time to break up a great team.I request you vote in the Democratic primary election. I request you vote Miller for Auditor.Joel Miller is a candidate in the Democratic primary for Linn County auditor. Full Article Guest Columnist
peri Franken: Vote for principled, experienced leadership By www.thegazette.com Published On :: Tue, 5 May 2020 16:53:41 -0400 I’m Admiral Mike Franken, and I’m a candidate for the U.S. Senate.Months before COVID-19 gripped the world, and what feels like an eternity before it began to run roughshod over Iowa, I decided to run for U.S. Senate. Why? Because Iowans deserve experienced leadership in Washington.Now, Iowa suffers one of the worst outbreaks in the nation; currently, three Iowa cities are the home of the second, forth, and fifth worst outbreaks in the country.During a crisis, especially a crisis of this severity, there is no alternative to leadership, experience, and vision. Unfortunately, political decisions have taken precedence over workers and their families. Our governor is insistent on opening the state as local experts and the CDC frantically urge otherwise. Sen. Chuck Grassley has said little. And, indefensibly, Sen. Joni Ernst is declaring that “Iowa has fared pretty well” despite what we know to be true: Iowa still is in a crisis. And the worst still is to come. Iowa doesn’t just suffer from a pandemic, we suffer from a profound failure of leadership. The question that voters must ask ahead of the June 2 primary is clear: Where can an Iowan look for leadership? A lack of leadership may come from a lack of experience, as well. I’m no stranger to dealing with disasters, pandemics, or other crises. Hurricanes have slammed economies, and, working for the Department of Defense, I helped rebuild them. Ebola decimated communities and, working in the Pentagon and in Africa, I helped rally the international efforts to save them. I’ve been here before.My plan is to win this race by offering a showcase of leadership. Recently I began a Daily Coronavirus Briefing on Facebook Live to fill the vacuum of leadership left by Joni Ernst and others. I use these daily opportunities to set the record straight, to discuss what is best for Iowa, how to recover from this pandemic, and kick start our economy, and ultimately build a new America. In short, I will lead to achieve these opportunities. On June 2, we have a close race for the U.S. Senate. Let’s chart a new course. I am the only candidate with the experience to lead Iowans out of this crisis. Let’s cast a vote for principled, experienced leadership for Iowa. Michael Franken is a candidate in the Democratic primary for U.S. Senate. Full Article Guest Columnist
peri Iowa workers beware, neither Big Debt Chet nor COVID-19 can stop unleashed prosperity By www.thegazette.com Published On :: Wed, 6 May 2020 15:06:52 -0400 Chet Culver really should have known better.Iowa’s former Democratic governor wrote a letter to current Republican Gov. Kim Reynolds decrying her administration’s declaration that workers who refuse to return to jobs amid COVID-19 fears would be denied unemployment benefits. He was among many who questioned whether Reynolds’ policy is even lawful, considering that unemployment rules allow Iowans to claim benefits for unsafe, intolerable or detrimental working conditions.“Any such ill-conceived scheme that deprives them of choice and forces those hardworking, yet vulnerable, employees to report to unsafe workplace environments, while the positive incidences of COVID-19 infection are on the rise, is not merely penny-wise and pound-foolish — it is just plain wrong,” Culver argued.But Culver should have known any overture for the rights of workers during the pandemic would fall on deaf ears. We learned Tuesday that more than 1,600 workers at four meatpacking plants tested positive for the virus. Reynolds continues insisting companies such as Tyson, with more than 1,300 cases at three facilities, are doing all they can to protect workers. In one Tyson facility at Perry, 58 percent of its employees contracted the virus. Culver lost in 2010 to the Branstad-Reynolds ticket, a team that would go on to gut collective bargaining for public employees and make it far more difficult for injured workers to get compensation, among other greatest hits composed by its big business allies. And Culver was bounced from office after issuing bonded debt to help Iowa communities, including Cedar Rapids, recover from natural disasters of 2008. Republicans dubbed him “Big Debt Chet” and decried his mismanagement of a crisis.Strong management, apparently, is Reynolds’ decision to partially reopen 77 counties even as COVID-19 case numbers grow and deaths mount, and before ramped up testing and modeling provide critical information on the scope of the virus. On Monday Reynolds received a lofty “A” grade from FreedomWorks and the Committee to Unleash Prosperity. Reynolds appeared on a conference call sponsored by the groups to talk about her strategy for reopening Iowa.FreedomWorks and the Committee to Unleash Prosperity are conservative groups playing a key role in organizing “liberation” protests in Wisconsin, Oklahoma and elsewhere. FreedomWorks, with roots in the Tea Party movement, has been mobilizing local protesters and organizing events, according to The New York Times. It’s also conducting tracking polls in swing congressional districts and sharing data with presidential advisers and congressional staff.“This isn’t political, and it shouldn’t be for anybody,” Reynolds told reporters this week when asked about her virus response. FreedomWorks is among 24 groups who sent a letter to the president in April urging him to waive the Renewable Fuel Standard for the rest of the year due to pandemic concerns, potentially freeing Iowa farmers from more of their already scarce income. So step aside Big Debt Chet. We’re unleashing prosperity. Even if workers get trampled. (319) 398-8262; todd.dorman@thegazette.com Full Article Staff Columnist
peri Impressed with Franken’s experience, openness By www.thegazette.com Published On :: Fri, 8 May 2020 12:28:23 -0400 We invited Admiral Mike Franken to a gathering of voters to explain why he was qualified to run for the U.S. Senate. We were impressed with his friendliness, his openness, and especially his range of experience as a leader. One of those in attendance at our home was a woman who had served under his command on the U.S.S. Barry; it was a happy reunion for the sailor and the admiral. She had no hesitation in endorsing him and supporting him in his campaign. Admiral Franken also visited our son’s home in another city. Again, those gathered were impressed with Admiral Franken’s experiences and priorities But the person most impressed was our eight-year-old grandson. When Charlie walked into the room, Admiral Franken interrupted himself, introduced himself to Charlie and engaged him in genuine conversation. Charlie’s summation of politicians. “I like him. He was talking about boring stuff, but he was nice to me. People shouldn’t talk about boring stuff; they should just be nice to everyone.” Mike doesn’t talk about boring stuff — to us, anyway. He talks about the actions we want our United States Senate to take: pass legislation to address climate change, health care and the economy.Because Mike has experience as a leader and as a staff member on Capitol Hill, he has an advantage over newcomers to Washington. We, one Democrat and one Republican, encourage you to vote for Admiral Mike Franken to be our Senator.Dianne and Bim PrichardDeWitt Full Article Letters to the Editor
peri Could you get PTSD from your pandemic experience? The long-term mental health effects of coronavirus By feedproxy.google.com Published On :: Mon, 20 Apr 2020 10:10:58 EDT Experiencing intense flashbacks, nightmares, irritability, anger, and fear? In the face of a traumatic event like the Covid-19 pandemic, it’s common to feel this way. Full Article
peri Could you get PTSD from your pandemic experience? The long-term mental health effects of coronavirus By feedproxy.google.com Published On :: Monday, April 20, 2020 - 10:10am Experiencing intense flashbacks, nightmares, irritability, anger, and fear? In the face of a traumatic event like the Covid-19 pandemic, it’s common to feel this way. Full Article
peri How to Improve User Experience Design: Tips to Increase Conversion Rates By feedproxy.google.com Published On :: Fri, 24 Apr 2020 13:53:03 +0000 No one can deny that UX (user experience) is the foundation of any website. This is the main reason why many website owners always look for ways to improve it. Some even spend a lot of money on design because of it. So, what is UX design exactly? And what is the difference between user […] Full Article Blog How-to & tutorials UX Web design
peri How to personalize the mobile experience for app users By feedproxy.google.com Published On :: Sun, 03 May 2020 08:42:02 +0000 Mobile user experience somehow ‘imposed itself’ with all the development and improvement of mobile communication devices. In fact, it is the quality of user experience that divides outstanding apps from their less outstanding counterparts. The same factor enables startups to learn from big brands and to improve their products. User experience for mobile applications – […] Full Article Blog How-to & tutorials UX Web design
peri Sony Xperia Z1 Compact Complete Guide By unlimitedcellphoneplansblog.wordpress.com Published On :: Mon, 07 Mar 2016 12:08:20 +0000 Have you got yourself a Sony Xperia Z1 Compact but not sure how to do something on it? Don’t worry, we’ve come up with a comprehensive guide for all the things your handset is capable of. Navigate the various sections using the links below. If you can’t find what you’re looking for just leave a … Continue reading Sony Xperia Z1 Compact Complete Guide → Full Article Uncategorized
peri Could you get PTSD from your pandemic experience? The long-term mental health effects of coronavirus By feedproxy.google.com Published On :: Monday, April 20, 2020 - 10:10am Experiencing intense flashbacks, nightmares, irritability, anger, and fear? In the face of a traumatic event like the Covid-19 pandemic, it’s common to feel this way. Full Article
peri Approximate Two-Sphere One-Cylinder Inequality in Parabolic Periodic Homogenization. (arXiv:2005.00989v2 [math.AP] UPDATED) By arxiv.org Published On :: In this paper, for a family of second-order parabolic equation with rapidly oscillating and time-dependent periodic coefficients, we are interested in an approximate two-sphere one-cylinder inequality for these solutions in parabolic periodic homogenization, which implies an approximate quantitative propagation of smallness. The proof relies on the asymptotic behavior of fundamental solutions and the Lagrange interpolation technique. Full Article
peri Sunny Pointer: Designing a mouse pointer for people with peripheral vision loss. (arXiv:2005.03504v1 [cs.HC]) By arxiv.org Published On :: We present a new mouse cursor designed to facilitate the use of the mouse by people with peripheral vision loss. The pointer consists of a collection of converging straight lines covering the whole screen and following the position of the mouse cursor. We measured its positive effects with a group of participants with peripheral vision loss of different kinds and we found that it can reduce by a factor of 7 the time required to complete a targeting task using the mouse. Using eye tracking, we show that this system makes it possible to initiate the movement towards the target without having to precisely locate the mouse pointer. Using Fitts' Law, we compare these performances with those of full visual field users in order to understand the relation between the accuracy of the estimated mouse cursor position and the index of performance obtained with our tool. Full Article
peri Algorithmic Averaging for Studying Periodic Orbits of Planar Differential Systems. (arXiv:2005.03487v1 [cs.SC]) By arxiv.org Published On :: One of the main open problems in the qualitative theory of real planar differential systems is the study of limit cycles. In this article, we present an algorithmic approach for detecting how many limit cycles can bifurcate from the periodic orbits of a given polynomial differential center when it is perturbed inside a class of polynomial differential systems via the averaging method. We propose four symbolic algorithms to implement the averaging method. The first algorithm is based on the change of polar coordinates that allows one to transform a considered differential system to the normal form of averaging. The second algorithm is used to derive the solutions of certain differential systems associated to the unperturbed term of the normal of averaging. The third algorithm exploits the partial Bell polynomials and allows one to compute the integral formula of the averaged functions at any order. The last algorithm is based on the aforementioned algorithms and determines the exact expressions of the averaged functions for the considered differential systems. The implementation of our algorithms is discussed and evaluated using several examples. The experimental results have extended the existing relevant results for certain classes of differential systems. Full Article
peri An Experimental Study of Reduced-Voltage Operation in Modern FPGAs for Neural Network Acceleration. (arXiv:2005.03451v1 [cs.LG]) By arxiv.org Published On :: We empirically evaluate an undervolting technique, i.e., underscaling the circuit supply voltage below the nominal level, to improve the power-efficiency of Convolutional Neural Network (CNN) accelerators mapped to Field Programmable Gate Arrays (FPGAs). Undervolting below a safe voltage level can lead to timing faults due to excessive circuit latency increase. We evaluate the reliability-power trade-off for such accelerators. Specifically, we experimentally study the reduced-voltage operation of multiple components of real FPGAs, characterize the corresponding reliability behavior of CNN accelerators, propose techniques to minimize the drawbacks of reduced-voltage operation, and combine undervolting with architectural CNN optimization techniques, i.e., quantization and pruning. We investigate the effect of environmental temperature on the reliability-power trade-off of such accelerators. We perform experiments on three identical samples of modern Xilinx ZCU102 FPGA platforms with five state-of-the-art image classification CNN benchmarks. This approach allows us to study the effects of our undervolting technique for both software and hardware variability. We achieve more than 3X power-efficiency (GOPs/W) gain via undervolting. 2.6X of this gain is the result of eliminating the voltage guardband region, i.e., the safe voltage region below the nominal level that is set by FPGA vendor to ensure correct functionality in worst-case environmental and circuit conditions. 43% of the power-efficiency gain is due to further undervolting below the guardband, which comes at the cost of accuracy loss in the CNN accelerator. We evaluate an effective frequency underscaling technique that prevents this accuracy loss, and find that it reduces the power-efficiency gain from 43% to 25%. Full Article
peri Experiences from Exporting Major Proof Assistant Libraries. (arXiv:2005.03089v1 [cs.SE]) By arxiv.org Published On :: The interoperability of proof assistants and the integration of their libraries is a highly valued but elusive goal in the field of theorem proving. As a preparatory step, in previous work, we translated the libraries of multiple proof assistants, specifically the ones of Coq, HOL Light, IMPS, Isabelle, Mizar, and PVS into a universal format: OMDoc/MMT. Each translation presented tremendous theoretical, technical, and social challenges, some universal and some system-specific, some solvable and some still open. In this paper, we survey these challenges and compare and evaluate the solutions we chose. We believe similar library translations will be an essential part of any future system interoperability solution and our experiences will prove valuable to others undertaking such efforts. Full Article
peri Experimental Biomass Harvest a Step Toward Sustainable, Biofuels-Powered Future By feedproxy.google.com Published On :: Thu, 17 Mar 2016 18:58:41 +0000 By Jeff Mulhollem Penn State News The first harvest of 34 acres of fast-growing shrub willow from a Penn State demonstration field this winter is a milestone in developing a sustainable biomass supply for renewable energy and bio-based economic development, … Continue reading → Full Article Biomass agriculture Bio Fuel bio mass
peri Acid addition salts of risperidone and pharmaceutical compositions thereof By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention relates to a novel acid addition salt of risperidone, wherein acid counterion is selected from the group consisting of pamoic acid, caproic acid, cypionic acid, decanoic acid, camphor sulfonic acid, enanthic acid, palmitic acid, fusidic acid, gluceptic acid, gluconic acid, lactobionic acid, lauric acid, levulinic acid and valeric acid, a process for the preparation and pharmaceutical composition comprising the same. Further, the invention relates to the use of said pharmaceutical composition comprising the acid addition salt of risperidone in the treatment of patient suffering from psychotic disorders. Full Article
peri Piperidine compounds and their use as stabilizers By www.freepatentsonline.com Published On :: Tue, 09 Jul 1991 08:00:00 EDT Compounds of formula (I) ##STR1## in which R1 is hydrogen, O°, CN, NO, cyanomethyl, C1 -C12 -alkyl, C3 -C12 -alkenyl or C3 -C12 -alkynyl subject to the proviso that the carbon atom attached to the nitrogen atom is a primary carbon atom, C7 -C12 -aralkyl, C1 -C12 -acyl, 2,3-epoxypropyl, OH-monosubstituted C2 -C6 -alkyl or 2,3-dihydroxypropyl, R2 is hydrogen, C1 -C18 -alkyl, C5 -C18 -cycloalkyl, C6 -C18 -aryl or C7 -C18 -aryalkyl, R3 is C6 -C18 -aryl or a group of the formula (II) ##STR2## in which R1 is as defined above, n is an integer from 1 to 4 and R4 is an organic or inorganic radical of a valency equal to n are useful for stabilizing organic material against oxidative, thermal and/or light induced degradation. Full Article
peri Methods and systems for mapping a peripheral function onto a legacy memory interface By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A memory system includes a CPU that communicates commands and addresses to a main-memory module. The module includes a buffer circuit that relays commands and data between the CPU and the main memory. The memory module additionally includes an embedded processor that shares access to main memory in support of peripheral functionality, such as graphics processing, for improved overall system performance. The buffer circuit facilitates the communication of instructions and data between CPU and the peripheral processor in a manner that minimizes or eliminates the need to modify CPU, and consequently reduces practical barriers to the adoption of main-memory modules with integrated processing power. Full Article
peri Bridge between a peripheral component interconnect express interface and a universal serial bus 3.0 device By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A bridge includes a Peripheral Component Interconnect Express interface supporting at least two lanes, an Extensible Host Controller Interface, and a Universal Serial Bus 3.0 root hub. The Peripheral Component Interconnect Express interface is used for coupling to a host. Each lane of the at least two lanes provides a highest data transmission speed. The Extensible Host Controller Interface is coupled to the Peripheral Component Interconnect Express interface for storing data transmitted by the Peripheral Component Interconnect Express interface. The Universal Serial Bus 3.0 root hub includes a first controller and a second controller. The first controller and the second controller are used for controlling data transmission of four ports, and a highest data transmission speed provided by each port of the four ports is not more than the highest data transmission speed provided by the lane. Full Article
peri System and method for detecting accidental peripheral device disconnection By www.freepatentsonline.com Published On :: Tue, 09 Jun 2015 08:00:00 EDT A detection device for detecting the manner in which a peripheral device is removed from an electronic device is proposed. The detection device can be on the peripheral device or the electronic device and detects whether the peripheral device was removed in a manner that indicates the removal was intentional or unintentional. Full Article
peri Electronic devices and methods for sharing peripheral devices in dual operating systems By www.freepatentsonline.com Published On :: Tue, 01 Dec 2015 08:00:00 EST A method for sharing peripheral devices in dual operating systems for an electronic device having at least one peripheral device is provided. The method includes: receiving a setting value for the peripheral device under the first operating system from a user; activating a second operating system; transmitting the setting value to the second operating system; and switching from the first operating system to the second operating system, wherein the second operating system sets the peripheral device with the setting value and enables the electronic device to operate under the second operating system. Full Article
peri Apparatus and method for controlling peripheral in wireless communication system using an IP address By www.freepatentsonline.com Published On :: Tue, 16 Feb 2016 08:00:00 EST An apparatus and method control a connection between peripheral devices in a control server of a wireless communication system providing an IP-based communication service. The method for controlling the connection between peripheral devices includes registering at least one device in a group list classified by user identification information. The method also includes, if a control node including a user identifier of the group list requests a control of any one device included in the group list, checking an IP address of the device that is requested to be controlled by the control node. The method further includes sending a control command of the control node using the IP address. Full Article
peri Experiment manager for manycore systems By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An execution environment may have a monitoring, analysis, and feedback loop that may configure and tune the execution environment for currently executing workloads. A monitoring or instrumentation system may collect operational and performance data from hardware and software components within the system. A modeling system may create an operational model of the execution environment, then may determine different sets of parameters for the execution environment. A feedback loop may change various operational characteristics of the execution environment. The monitoring, analysis, and feedback loop may optimize the performance of a computer system for various metrics, including throughput, performance, energy conservation, or other metrics based on the applications that are currently executing. The performance model of the execution environment may be persisted and applied to new applications to optimize the performance of applications that have not been executed on the system. Full Article
peri Synthesis and applications of peripherally asymmetric aryl POSS compounds By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT Asymmetric aryl polyhedral oligomeric silsesquioxanes (ArPoss) compounds synthesized by the “corner-capping” of phenyl7Si7O9(OH)3 with aryl trichlorosilanes are described. The ArPoss compounds have the chemical structure: wherein Ph is phenyl and wherein R is selected from the group consisting of: and mixtures thereof. Full Article
peri Treadle-drive eccentric wheel transmission wheel series with periodically varied speed ratio and having inward packing auxiliary wheel By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT In the present invention, one or both of an active wheel or a passive wheel is composed of an eccentric transmission wheel and is combined with a synchronous transmission belt for forming an eccentric wheel transmission wheel series, so that when the feet input forces at different angles from the treadle shafts of the treadles to an active wheel shaft combined on the active wheel through cranks, the active wheel forms different transmission speed ratios relative to the passive wheel according to the treadle angle, and random inward packing is performed to the transmission belt (100) of the engage end of the eccentric passive wheel (413) during the transmission for stabling the operation. Full Article
peri Treadle-drive eccentric wheel transmission wheel series with periodically varied speed ratio By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention is structured by using one or both of an active wheel and a passive wheel being composed of an eccentric transmission wheel and being combined with a synchronous transmission belt for forming an eccentric wheel transmission wheel series, so that in the reciprocal treadle performed by the human's feet, when the feet input forces at different angles from the treadle shafts of the treadles to an active wheel shaft combined on the active wheel through cranks, the active wheel forms different transmission speed ratios relative to the passive wheel according to the treadle angle. Full Article
peri Oxime-substituted-quinoxaline-type piperidine compounds as ORL-1 modulators By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present disclosure relates to Oxime-Substituted Quinoxaline-Type Piperidine Compounds, such as those of Formula (I): and the pharmaceutically acceptable salts and solvates thereof, wherein R1, R2, R3, R4, R20, R21, Q, Y1, Z, A, B, and a are as defined herein; compositions comprising an effective amount of an Oxime-Substituted Quinoxaline-Type Piperidine Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of an Oxime-Substituted Quinoxaline-Type Piperidine Compound. Full Article
peri Peri-critical reflection spectroscopy devices, systems, and methods By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Spectroscopy apparatuses oriented to the critical angle of the sample are described that detecting the spectral characteristics of a sample wherein the apparatus consists of an electromagnetic radiation source adapted to excite a sample with electromagnetic radiation introduced to the sample at a location at an angle of incidence at or near a critical angle of the sample; a transmitting crystal in communication with the electromagnetic radiation source and the sample, the transmitting crystal having a high refractive index adapted to reflect the electromagnetic radiation internally; a reflector adapted to introduce the electromagnetic radiation to the sample at or near an angle of incidence near the critical angle between the transmitting crystal and sample; and a detector for detecting the electromagnetic radiation from the sample. Also, provided herein are methods, systems, and kits incorporating the peri-critical reflection spectroscopy apparatus. Full Article
peri Bioadhesive for periodontal gingival and/or bone tissues By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT The invention is directed to an adhesive strip, particularly an adhesive strip or bandage for use in periodontal treatments. The biocompatible adhesive strip comprises a flexible barrier with a biocompatible adhesive for use in an oral environment, wherein the adhesive is in a non-tacky state when dry and becomes adherent upon contact with liquids. Full Article
peri System and method for switching between media streams while providing a seamless user experience By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An electronic device with one or more processors, memory and a display receives a first request to display a first video stream on the display. In response to receiving the first request, the electronic device displays the first video stream on the display. While displaying the first video stream on the display, the electronic device receives a second request to display a second video stream on the display. In response to receiving the second request, the electronic device displays at least a portion of the first video stream on the display concurrently with at least a portion of the second video stream, where the second video stream was received, at least in part, from a content source in response to a request from the electronic device to the content source for delivery of the second video stream from the content source. Full Article
peri Use of epidermal growth factor for the morphofunctional restoration of peripheral nerves in diabetic neuropathy By www.freepatentsonline.com Published On :: Tue, 04 Feb 2014 08:00:00 EST The invention relates to human medicine and to the use of epidermal growth factor (EGF) for preparing a pharmaceutical composition which is administered by infiltration into the periphery of nerve ganglia and/or trunks for the morphofunctional restoration of peripheral nerves in painful sensory-motor neuropathy as well as manifestations of ischemic neuritis. The invention also includes a composition containing EGF which can be formulated together with anesthetics or analgesics or encapsulated in microspheres and to the use thereof for the morphofunctional restoration of peripheral nerves in painful sensitive-motor-type diabetic neuropathy and the manifestations of ischemic neuritis. Full Article