text:
About Us
Purpose & Brand Promise
Board of Directors
Annual Reports
Nashville Chamber Initiatives
Economic Development & P2020
K-12 Education
Legislative Priorities
Music City Music Council
Nashville Entrepreneur Center
Nashville Health Care Council
Talent Development
Young Professionals
Vital Signs
About the Region
Emerging Issues and Challenges
News and Updates
Drive to 55 Dashboard
Join Now
Engagement Center
Programs & Events
Relationship-Building Events
Business Growth & Development Events
Community Action Events
CEO Roundtables
NEXT Awards
HR Excellence Awards
Nashville Emerging Leader Awards
Event Calendar
Professional Development
Investment Levels & Membership Benefits
Members Only
Get Involved
Cost-Savings Programs
Online Speakers Bureau
Sponsorship, Advertising and Promotion
Business Directory
New Members
BusinessConnect Coupons
BusinessConnect RFP Tool
BusinessConnect Request List
Area Advisory Councils
Chamber East
Chamber South
Chamber West
Chamber North
Chamber Midtown
Business in Nashville
Start a Business in Nashville
Business Studio
Major Employers
International Business in Nashville
Business Voice
Business Matchmaking
Research Center
Disaster Planning
Economic Development
Relocate Your Business
Relocation Advantages
Business Climate
Taxes & Incentives
Regional Partners
Target Industries
Relocation & Expansion
About Our Team
P2020 Investor Companies
Map Room
Economic Development News
Contact Us
Recent Rankings
Real Estate
Relocate Your Family
Getting Established
Cost-of-Living Comparisons
Area Schools
Public Schools
Private Schools
Colleges & Universities
Community Colleges & Vocational Schools
Work in Nashville
Grow Your IT Career
Employment Resources
Internship FAQs
Intern Nashville Employer Resource Guide
InternNashville Employer List
Workforce Study
Job Board
Nashville Area Job Postings
Largest Employers
Postsecondary Attainment
Visit Nashville
Visitor Information
Transportation Services
Nashville Map
News & Events
Event Calendar
Lindsay Chambers' Blog
Nancy Eisenbrandt's Blog
Garrett Harper's Blog
Marc Hill's Blog
Debby Dale Mason's Blog
Alex Hughes' Blog
Lori Odom's Blog
Courtney Ross' Blog
Rita McDonald's Blog
Stephanie Coleman's Blog
Adam Lister's Blog
Laura Moore's Blog
Whitney Weeks' Blog
Press Releases
News Articles
E-newsletter Sign-Up
Chamber Publications
E-newsletter Archive
Economic Impact Studies
Education Reports & Publications
Legislative Scorecards
Images Nashville
RSS Feeds
Chamber YouTube Videos
Contact Us
Contact Form
Chamber Staff Directory
Frequently Asked Questions
member login »
find a business »
As a member of the Nashville Area Chamber of Commerce, you are part of the "WE."
Partnership 2020: The Nashville region's public/private economic development initiative
Thank you to our Pivotal Partners
Learn more about the Chamber
New Partnership 2020 strategy calls for broader view of community vitality
Feb 19, 2015
Nashville leads the nation in advanced manufacturing
Feb 03, 2015
America's Fastest-Growing Cities 2015
Jan 27, 2015
Nashville ranked 86th largest metro economy in world
Jan 22, 2015
Insure Tennessee passage, K-12 standards and assessment top Nashville Area Chamber 2015 priorities
Jan 08, 2015
Orbitz editors name Nashville a top destination for 2015
Jan 06, 2015
View all Nashville Chamber News
Metro Water to Host Public Meeting On Proposed Downtown Flood Wall
By: Debby Dale Mason
Feb 27, 2015
Proposed Transatlantic Trade Agreement a 'Game-Changer'
By: Lori Odom
Feb 25, 2015
Partnership Unveils Ambitious Economic Development Strategy
By: Courtney Ross
Feb 20, 2015
Member Spotlight - Leland, Inc.
By: Lindsay Chambers
Feb 09, 2015
Celebrating Our Outstanding Young Professionals
By: Alex Hughes
Feb 04, 2015
View the Nashville Chamber Blog
Business Studio
The Chamber has introduced Business Studio, a resource for small and midsized businesses of Middle Tennessee. Learn more
2014 Education Report Card
The Chamber has released the 2014 Report Card for Metropolitan Nashville Public Schools, which includes five recommendations for improving school performance. Download it
WorkIT Nashville
WorkIT Nashville is the community hub for technology jobs in Middle Tennessee. Click
to see hundreds of technology jobs and learn about the thriving technology scene in Middle Tennessee.


text:
Voters approve the Clyde Brown MSBA Project
The voters approved the Clyde Brown MSBA project yesterday 359 to 285. The next step is a special Town Meeting at 7:30 on March 9th in the MS/HS Auditorium. Please view the information to the right as well as the three videos titled "CFB Building Rationale", CFB Project - Ed Rationale" and "CFB Project School Committee" which can be viewed at the following link http://www.millisps.org/cotw
MHS Partners with Chyten for Test Prep Starting in March
Millis High School is partnering with Chyten Educational Services to provide MHS students with SAT and ACT test preparation programs.
Chyten provides the following options:
SAT Preparation Classes: Classes begin in March and are taught by Chyten's most experienced tutors. SPACE IS LIMITED. Enrollment is offered on a first-come, first-served basis.
Millis Gr. 7 and 8 Book Group rescheduled to Feb 24th
Please note: with the recent weather conditions, the Grades 7 and 8 Book Group will be meeting on Tuesday, Feb 24th, from 2:30!to 3:30 pm in the School Library. Students may read either "The Great Molasses Flood" or "Dark Tide", by Stephen Puleo.
Books are available through the School Library and the Public Library. This book group is part of the "Millis Reads" program and is open to any student or staff in grades 7 and 8.
Clyde F. Brown MSBA Project Update- 1-6-15
At last night's Board of Selectmen meeting, the Board of Selectmen voted their intent to hold both a special election on February 23, 2015 and a special town meeting on March 9, 2015 to fund a feasibility study under a 2013 grant proposal submitted to the Massachusetts School Building Authority (MSBA) for renovation and repairs to the Clyde F. Brown School.
Clyde F. Brown Massachusetts School Building Authority Project
In May 2014 the Millis Public Schools learned that the MSBA was extending an invitation into the funding process for the town's 2013 Statement of Interest. The 2013 Statement of Interest was submitted on April 5, 2013 and outlined the need to repair major building systems and to alleviate overcrowding at the Clyde F. Brown School. In its 2013 SOI Millis requested funding for either a renovation or addition at the Clyde F. Brown School to address the following three priorities:
MSBA Information Session rescheduled to February 3rd
The Clyde F. Brown MSBA Information Session, originally scheduled for Tuesday, January 27th has been rescheduled to Tuesday, Feb. 3rd from 10:30 - 12:00 at the Millis Public Library
A special election is scheduled for Monday, February 23rd and a special town meeting on Monday, March 9th. Voters will be asked to decide on whether or not to fund a $1 million district-wide feasibility study. ~
Junior Parent College and Post-Secondary Planning Night Presentation
The Millis High School Counseling Department hosted a College and Post-Secondary Planning Night for parents of junior students (class of 2016) on Thursday, February 5th, at 6:30pm in the Middle/High School Auditorium. If you missed the evening, you can find a copy of the presentation linked to below.
Aspire Results Handed Out
Sophomores received their Aspire results during the school day on Thursday, February 12th. Everyone that took the exam received a four-page score report, along with a guide to understanding their Aspire results. If you have any questions on the results or the Aspire in general, please don't hesitate to contact the School Counseling Office at 508-376-7023. If you need further help interpreting the Aspire results, the guide linked to below is very helpful.
Secretary of Education Matt Malone visited Millis
Secretary of Education Matt Malone visited Millis on Dec. 11th and expressed amazement at what dynamic teaching and engaged learning he saw everywhere he went. We started in the CFB computer lab where Ms. Tashian's students were learning computer programming with Hour of Code with Ms. Granchelli.
Then we were on to second grade and visited Math in Spanish Immersion,

subset: commoncrawl


text:
Wells Fargo
"Great company to work with! "
I worked at Wells Fargo
Great people with a nice culture. great management in general in most locations
lots of politics so you need to play along if you are in a leadership role or if you want to become a leader.
"Excellent Learning and Development "
- Comp & Benefits
- Work/Life Balance
- Senior Management
- Culture & Values
- Career Opportunities
I have been working at Wells Fargo full-time (less than a year)
ProsManagement is focused on developing employees into excellent sales people, and most have been bankers within Wells Fargo (or Wachovia depending on where you are). My manager frequently offers immediate feedback on our customer interactions, both positive and negative, to help the team grow and learn. Compensation is reasonable and benefits are excellent.
ConsIt seems like Wells Fargo has pretty high turnover, which is to be expected in banking, but employees are moved up and around to different positions within the business very frequently. Also, though the on the job development is excellent, the actual training needs to be organized differently. Classroom sessions either need to be more in depth, or cut out completely.
Advice to ManagementAdvicePlease improve the training sessions. Sitting in a classroom and having other employees act as customers is not effective, and it wastes time. More time should be spent becoming comfortable with the software and products.
RecommendsPositive OutlookApproves of CEO -
"Great Internship Program "
- Comp & Benefits
- Work/Life Balance
- Senior Management
- Culture & Values
- Career Opportunities
I worked at Wells Fargo as an intern (more than a year)
ProsDown to earth management that is willing to talk with interns and listen to their goals.
Engaging internships program with opportunities to work hands-on and understand company.
Great opportunities for advancement.ConsMaybe a more structured program, although I did enjoy the flexibility of work.
RecommendsPositive OutlookNo opinion of CEO -


text:
Course Description:
The History of the Bill of Rights is a feature of every Supreme Court term. Congress and the Executive join with putative claims of "the Framers" intent. The media throws up pictures of one "founder" or another as occasion arises with little or no context.
But what gets left out in the retelling?
This course will focus on the history in context incorporating theories of constitutional interpretation such as originalism, progressive originalism, and living constitution.
Learning Goals: Students should leave this course with a deeper understanding of the context of modern constitutional law and rights. A law student can easily graduate without ever having read in their entirety the Declaration of Independence, the Constitution, or the Bill of Rights. Most have heard of Magna Carta (1215) but not other key documents like The English Bill of Rights (1688) or John Locke's Two Treatises of Government (1689).
Cour packet to be purchased at UA Bookstore and cases available through Westlaw.
During the semester consisting of 14 sessions, we will follow the general structure of the Bill of Rights referring to the Declaration and Constitution. We will center sessions on critical discussion of various topics regarding the history of the bill of rights including short lectures. Each session will have a reading list of selected law review articles, cases and/or historical documents. Reading for a typical session may include an historical document such as The Bill of Rights, one or two key law review articles, and one to three cases. Case readings will be of particular import. Some present history and others apply it. Crawford v. Washington, 541 U.S. 36 (2004) and Miranda v. Arizona, 384 U.S. 436 (1966) are examples.
Short paper, mid-term exam, final exam (comprehensive) with equal weight to all three.


text:
Post Game Quotes
March 9, 2014 MEN'S BASKETBALL POSTGAME QUOTES Minnesota Head Coach Pitino Quotes Opening Statement... On playing Oto Osenieks at the end of the game...
On having the seniors talk with the crowd after the game... "When I was at Louisville we would ask the seniors to speak on senior day. I thought it was a great way for these guys to create lasting memories. They'll never forget their chance to speak in front of 10 thousand people. More than anything it's great for them to say thank you because these college years create memories that they will remember for the rest of their lives." On deciding when to play Maverick and Malik... On Mo Walker establishing himself as a post player... Junior Mo Walker On halftime adjustments… On playing Penn State again on Thursday in the B1G Tournament… What the team takes away from today's game…. Junior Center Eliott Eliason On whether Penn State had more interest in Thursday's upcoming game than today's…. On Thursday's game being held on a neutral court…. Senior Guard Austin Hollins On what this team is taking into the B1G Tournament… On his last home game on 'senior day'…. On the team maturing throughout the season…. Penn State Head Coach Patrick Chambers On the tough start for Penn State... On putting up a fight towards the end of the game On playing Minnesota on Thursday in the Big Ten Tournament |
More Headlines
2/7/2015Minnesota Outlasts Purdue, 62-58
1/31/2015Minnesota Rolls Past Nebraska 60-42
01/29/2015Raise the Barn: Home Court (Episode 5)
02/20/2015Game Preview: Minnesota at Wisconsin
02/17/2015Game Preview: Minnesota vs. Northwestern
01/28/2015Penn State Tops Gophers 63-58 on Road
01/24/2015Minnesota Pushes Past Illinois, 79-71


text:
Find us on Google+
IT Management
Slide Shows
Research Center
Sponsored News
Small Business
PC Hardware
at 30
Big Data Analytics
Cloud Backup
Next Generation Firewall
Top Five Free Courses Every IT Pro Should Consider
When Should You Put Applications in the Cloud?
Unlocking the Value and Features of Cloud-Based VoIP
New Servers: Cut TCO, Do More with Less
Colocation? Managed Hosting? Public Cloud? Which is Best for Me?
News & Analysis
Ex-Sun CEO Jonathan Schwartz Launches Health Care IT Venture
Ex-Sun CEO Jonathan Schwartz Launches Health Care IT Venture
Brian T. Horowitz
Posted 2010-09-13
Former Sun CEO Jonathan Schwartz will attempt to steer his career into a successful new phase with a startup health care IT Website named "Picture of Health."
Jonathan Schwartz, the former CEO of Sun Microsystems, has formed a health care IT firm with the corporate name of Informed Biometry and the Website name
Picture of Health
. Schwartz, who is also CEO of the new company, told eWEEK in a Sept. 13 e-mail that the corporate name will "fade into the background." The new venture's co-founder and CTO is Walter Smith, a former developer, architect and development manager for Microsoft, where he worked on Internet Explorer, Windows and MSN. Smith was also a developer of the Newton OS at Apple and recently co-founded the consumer Website design platform
Jackson Fish Market
Schwartz shared the news on
his personal blog
on Sept. 9. Schwartz didn't get into details on the new venture but noted that focusing on health was a "personal choice" for both him and Smith. "Everyone cares about it in a deeply personal way (it's tough to say the same about specialized microprocessors)," Schwartz wrote. "Mums, Dads, children, friends, loved ones, nurses, doctors, even insurance companies and governments-everyone on Earth, in one form or another, cares about health and well-being."
"At this point, we're not discussing our target, beyond the application of technology to public health," Schwartz wrote in a Sept. 13 e-mail to eWEEK. "We are, however, hiring developers and designers." The company's Website also notes that it's hiring software generalists. In a
New York Times
interview, Schwartz reportedly hinted at plans for software and services to help people track their information and for an HIE (health information exchange) to allow patients and health care providers to exchange information. Schwartz was CEO of Sun from 2006 to 2010. When he left the company on Feb. 4, he did so by tweeting a haiku: "Financial crisis/Stalled too many customers/CEO no more."
According to the
Times blog post at the time
, he was the first leader of a Fortune 200 company to announce an exit using Twitter. According to the Times, he was also the first company CEO to write a blog. "Most places on Earth, the Internet is more accessible than electricity, clean water, or basic sanitation," the new company states on its Picture of Health Website. "That's an amazing proliferation, and an outstanding opportunity to apply simple technologies to some of the world's most pressing problems. We're setting out to do exactly that, focusing on the intersection of innovation and public health." Following
Oracle's acquisition of Sun Microsystems on Jan. 27
, Schwartz searched for a new role. In a regulatory filing with the Securities and Exchange Commission on June 8, 2009, Sun reported that
Schwartz was to receive $12 million
as part of his severance package. Sun's servers and workstations and Solaris enterprise software are now part of the Oracle product portfolio.
Brian T. Horowitz is a freelance technology and health writer as well as a copy editor. Brian has worked on the tech beat since 1996 and covered health care IT and rugged mobile computing for eWEEK since 2010. He has contributed to more than 20 publications, including Computer Shopper, Fast Company, FOXNews.com, More, NYSE Magazine, Parents, ScientificAmerican.com, USA Weekend and Womansday.com, as well as other consumer and trade publications. Brian holds a B.A. from Hofstra University in New York.
Follow him on Twitter:
Submit a Comment
Loading Comments...
Manage your Newsletters:
My Newsletters
eWeek Editor's Pick
News & Views
Cloud Computing
Mobile and Wireless Update
Best of eWeek
eWeek Sunday Brunch
eCareers Smart Moves
Enterprise Applications Topic Center Update
Enterprise IT Advantage
eWeek Whitepaper Spotlight
eWeek Labs
eWeek Enterprise Update
eWeek Storage Report
Industry Center Update : Finance
Industry Center Update : Government
Industry Center Update : Health Care
Infrastructure Topic Center Update
Linux & Open Source Topic Center Update
Mid-Market Solutions
Securing the Enterprise
VoIP Topic Center Update
What's Hot Now
News and Reviews
Google Wallet to Be Preinstalled on Verizon, AT&T, T-Mobile Phones
Facebook Picking Up the Pace on Its Open-Source Code Journey
'Spying' on Consumers by Samsung's Smart TVs Bashed by Privacy Experts
Apple Watch Will Lack Key Health-Monitoring Features in April Debut
Visa Wants to Link Up Your Credit Card, Phone Location to Cut Fraud
Nine Takeaways From the White House C...
In May 2009, newly elected President Barack Obama—who was bur...
Watch Now
Thanks for your registration, follow us on our social networks to keep up-to-date


text:
Dec 31, 2009, 08:10 PM | |
Thanks Doubletap - that would be great. I think I have seen the ESC upo there a few times.
I might have to move the ESC up there because I just found something I bought when I started putting together my FPV plane, which was going to be an EasyStar, but I ended up doing an EasyGlider. So, I had a spare canopy mount for a camera. THis may allow me to fly the plane as conventional RC like this: Or else, take off the canopy and slap this baby one! The camera and video Tx will fit on this, and I'll have a spare wire that draws power from my flight pack. I think it will work fine. The video TX gets stuck to the big back plate.. camer on the camera part, and underneith (inside the cockpit) will be the power filter (Remove ESC noise). My worry is that the CoG will change dramatically when I swop from conventional to FPV config. I will put all the items on the FPV mount and weigh it. But it will be ALOT heavier than the default canopy. And this also means that the ESC must be as far away as possible from the camera Tx... |
Dec 31, 2009, 08:55 PM | |
Thanks Doubletap - that looks pretty neat! I may copy you there. Did you cut some foam to get the ESC to sit more flush?
I'll be running the Zippy 2200mah packs... Just not sure how I am going to solve my varying CoG issue I'll be having when changing from FPV canopy to normal. |
Jan 01, 2010, 12:53 AM | ||
Here are two examples of outside ESC's: This is a neat one over the wings by OldPilot (similar to Doubletap's): http://www.rcgroups.com/forums/showp...ostcount=11948 This is mine: I carved some foam out of the canopy (my goal was to alter only the canopy and leave the fuse intact because a canopy only costs $8 and i have a few extras): http://www.rcgroups.com/forums/showp...ostcount=12033 Sorry the picture is of the ESC underconstruction but I think it shows the setup pretty clearly. Have fun! Mi |
Jan 01, 2010, 01:07 AM | |
That's good stuff! I can't use the canopy, as .. as above... I will be interchanging the canopy a lot, I think. But mounting flush on the top of the wings looks neat! I wonder how that guy handles heat... I guess with the top surface pointing up, it'll be OK, but how much wind actually hits that? Looks very neat though...
Thread Tools | |
Similar Threads | |||||
Category | Thread | Thread Starter | Forum | Replies | Last Post |
Discussion | HB Cool Component Placement. Now ... throttle/pitch curves | cgschaefer | Mini Helis | 16 | Apr 14, 2007 11:43 AM |
Discussion | Easy Star FPV Component Placement | dklassen | FPV Talk | 32 | Feb 24, 2007 07:38 AM |
Discussion | Component placement on Trex | kenmalecki | Mini Helis | 15 | Dec 30, 2005 10:19 AM |
Discussion | Component placement on Eco 8 | kenmalecki | Electric Heli Talk | 1 | Dec 26, 2005 10:41 AM |
Hummingbird Elite FP Component Placement | Orion_V | Micro Helis | 2 | Oct 20, 2004 09:42 AM |


text:
As soon as I arrived I already knew this place was a bad choice. I had made a reservation for myself. I parked at the entrance to check in. Two strange men were standing outside the lobby staring and making comments to each other. Since I was traveling alone I felt threatened, but I still walked in to let them... More
- Reservation Options:
- TripAdvisor is proud to partner with Expedia, Hotels.com, Booking.com, Priceline and Odigeo so you can book your Palace Inn Katy reservations with confidence. We help millions of travelers each month to find the perfect hotel for both vacation and business trips, always with the best discounts and special offers.


text:
Hot DealForth Key Booktest by Alakazam Magic - Tricks $41.00 $13.75 Save: 66% off Reward PointsNo points earned yet on current order. Log in to see how many reward points you have already earned Categories
This company is awesome. Fast delivery and confirmation emails make it a very positive transaction every time. Very Affordable and Very Good Service Form where I am (the Philippines) magic is readily available but the problem is it is too expensive. MJM Magic has offered me an option with their... |


text:
Copyright ©2010 NPR. For personal, noncommercial use only. See Terms of Use. For other uses, prior permission required.
SCOTT SIMON, host:
Illness may rob us of vitality, but maybe - just maybe - sometimes it can help bring us understanding in improbable disguises. Elisabeth Tova Bailey was struck with a neurological disorder in which she was too weak even to sit up. Illness essentially sentenced her to stay in bed, where she felt life was slipping by, unused.�
A friend brought her a gift of flowers in a small pot in which a wild snail also resided. What once Elisabeth Tova Bailey might have seen as just as just a nearly motionless mollusk among violets meant to console her becomes instead her companion, almost her surrogate.�
Elisabeth Tova Bailey, who is an essayist and short story writer, has written a book about how her view of life in a small, slow scale enlarged her view of life. Its called The Sound of a Wild Snail Eating: A True Story."
And Elisabeth Tova Bailey joins us from her home in Maine.
Thanks so much for being with us.
Ms. ELISABETH TOVA BAILEY (Author): Thank you very much, Scott.
SIMON: And we should explain, Elisabeth Tova Bailey is a pen name. Yes?
Ms. BAILEY: Yes. Due to my illness, I really have to lead a very, very quiet life. I think it's just a helpful buffer for me in that way. I am not somebody that ever wanted to write about myself or my illness. And I would never have done so but I really wanted to write a, sort of a biographical thank you for the snail and I also wanted to help other patients with my illness.
SIMON: Could you help us understand your illness a little better?
Ms. BAILEY: It's not a very visible illness but it physically limits you. So, it's extraordinarily difficult to live with and it's very unpredictable.
SIMON: Does it have a name?
Ms. BAILEY: Depending on what specialist you go to, you can get a different diagnosis, whether it's dysautonomia or mitochondrial disease or chronic fatigue syndrome.
SIMON: So, a friend brings you this pot of flowers and says there's a snail at the bottom, I thought you might enjoy it. What did you think?
Ms. BAILEY: I was surprised and not at all sure why she had picked up a snail and brought it. I have very down-to-earth friends. I have spent my adult life living in the country. But even so, I was a little bit perplexed and it felt like, oh, just one more thing that I couldn't deal with and it was overwhelming.
She, of course, you know, left and drove home and there I was in bed unable to get out with this very small animal a foot away from my bed and no understanding of its life or how I would ever get it back to where it came from.
SIMON: How did you begin to notice the snail's life?
Ms. BAILEY: Well, when you're that bedridden and the world around you is quite still - you're too sick to watch television or read - and if something is moving, you start to watch it. I think sometimes of that Emily Dickinson poem about the fly on the windowsill. And the snail within its shell originally -'cause it had been disrupted from its life and it went into a shell to be safe, and later on, a few hours after my friend left, came out of its shell and began to explore.
And I just watched it because there was something watch. And I didnt - even then I didn't really become interested. It still felt like a burden and a responsibility. But it was in the next - as the next day and then a few more days passed, I began to see the pattern in its life. And when you start to observe the patterns of another animal's life, I think you get to know that animal and feel connected.
SIMON: And the animal ate your flowers too.
Ms. BAILEY: There were some flowers in a vase that had sort of gone by(ph), so I gave it some of those petals and it began to eat them. And I think when you're that ill and you can do almost nothing for yourself, let alone for anyone else, being able to help this very tiny creature that was hungry was a very amazing thing for me to be able to do. It gave me a feeling of being useful again.
SIMON: Did you begin to project yourself one way or another inside that shell a bit?
(Soundbite of laughter)
Ms. BAILEY: I think my connection to the snail when I was when it was with me that year was more about appreciating its pace in life. It moved at a speed that was actually faster than my own speed. And so it really was peaceful to watch it. You know, it moved so smoothly and gently and gracefully, it was like a Tai Chi master. And it was very calming and just helped me deal with the fact that I was at a level that was so low in terms of what I could do.
SIMON: Now, at some point you got a little bit better, at least better enough to move home. You've been in a studio apartment.
Ms. BAILEY: Yeah.
SIMON: And you thought you ought to release your snail companion back into its natural habitat, but you worried about if it had become domesticated, I guess.
Ms. BAILEY: Well, I'm not sure well, Im not sure if I - yeah, I suppose domesticated in that it was used to getting fed, you know. It was safe, but you know, like any animal it's incredibly evolved to deal with its own environment, but it was very hard to let it go.
SIMON: Did the different pace of the snail's life and human life change you in any way?
Ms. BAILEY: I don't know. I think that I'd like to say that I continue to move at a snail's pace, but like most humans I try to do too much still always. It's a constant struggle to live within the boundaries of my illness. And as I note later in the book, there's a point at which I am doing just a little bit enough better that I don't have as much patience to watch the snail.
I think we're naturally geared to live within the speed which our species has evolved to function in. And I think the functioning of humans is evolving to be faster and faster.
SIMON: Elizabeth Tova Bailey speaking from Maine. Her new book is "The Sound of a Wild Snail Eating: A True Story." Thank you so much, Miss Bailey.
Ms. BAILEY: Thank you.
Copyright © 2010 NPR. All rights reserved. No quotes from the materials contained herein may be used in any media without attribution to NPR. This transcript is provided for personal, noncommercial use only, pursuant to our Terms of Use. Any other use requires NPR's prior permission. Visit our permissions page for further information.
NPR transcripts are created on a rush deadline by a contractor for NPR, and accuracy and availability may vary. This text may not be in its final form and may be updated or revised in the future. Please be aware that the authoritative record of NPR's programming is the audio.
You must be signed in to leave a comment. Sign In / Register
Please keep your community civil. All comments must follow the NPR.org Community rules and Terms of Use. NPR reserves the right to use the comments we receive, in whole or in part, and to use the commenter's name and location, in any medium. See also the Terms of Use, Privacy Policy and Community FAQ.


text:
Variety Insight premium subscribers can access phone, email and more.
John Sloss
Founder/Partner, Sloss Eckhouse Law
: Cinetic Media, Cinetic Media, Producers Distribution Agency (PDA), Sloss Eckhouse Law Co., Cinetic Media
Access the industry's most accurate development and production listings,credits,contact info, org charts, box office, TV ratings and more.
Film Title | Companies | Job Title | Company | Status | Release Date |
BOYHOOD | IFC Films | Producer | IFC Films Detour Filmproduction | Completed | July 11, 2014 |
DEALIN' WITH IDIOTS | IFC Films | Executive Producer | Killer Films Bankside Films | Completed | July 12, 2013 |
BEFORE MIDNIGHT | Sony Pictures Classics | Executive Producer | Castle Rock Entertainment Venture Forth Capital Detour Filmproduction Faliro House Productions | Completed | May 24, 2013 |
BERNIE | Millennium Entertainment, Inc. | Executive Producer | Mandalay Vision Wind Dancer Films Detour Filmproduction | Completed | April 27, 2012 |
FRIENDS WITH KIDS | Lionsgate Roadside Attractions | Executive Producer | Red Granite Pictures Points West Pictures Locomotive Entertainment Group | Completed | March 09, 2012 |
See All Credits ⇓
Want to see projects John Sloss is developing? Visit Variety Insight .
Latest Headlines: John Sloss
Piracy is threatening the financial underpinnings of the movie business, but theater owners are partly to blame, a panel of independent film producers argued at Saturday's Produced By: New York…
Critics are labeling "Boyhood" a masterpiece and those rave reviews are translating into strong ticket sales. The Richard Linklater drama debuted to $359,000 from five locations in New York and Los…
Paris-based Kinology will be heading to the Berlin Festival in two weeks time with Iranian vampire Western "A Girl Walks Home Alone at Night," the debut feature of U.S.-based Ana Lily Amirpour and…
John Sloss's Cinetic Media has unveiled the metric "multi-screen gross" as a means of combining consumer payments at home and in theaters for day-and-date releases. "At Cinetic, we strongly believe…
With the Hamptons International Film Festival around the corner, the festival has released its full slate of programming. Richard Curtis' "About Time" will be the Southampton opener on Oct. 11, while…
Magnolia Pictures has acquired U.S. rights to "True Blood" star Ryan Kwanten's "The Right Kind of Wrong" in advance of its Sept. 12 world premiere at the Toronto Film Festival. The romantic comedy…
Lionsgate has acquired the U.S. distribution rights to spy thriller "A Most Wanted Man," starring Philip Seymour Hoffman, Rachel McAdams, Robin Wright and Willem Dafoe.
CBS Films has acquired domestic rights to the coming-of-age comedy "Toy's House," which first-time helmer Jordan Vogt-Roberts directed from a screenplay by Chris Galletta.
ICM Partners is beefing up its film lit ranks, naming Cinetic Media's Bart Walker as a partner in the percentery.
In a competitive situation, Universal Pictures has acquired the sci-fi comedy spec "Subdivision" from scribes Morgan Jurgenson and Alex Ankeles and attached "Fast Five" filmmaker Justin Lin to…


text:
Sleep Inn 2476 N. Citrus Blvd. Leesburg, FL 34748-7201 Phone: (352) 326-9002 Fax: (352) 326-8668 |
Bars & Cafes
»Windsor Tea Room
This English restaurant and garden shop is Mount Dora's original tearoom which serves traditional English pub fare complemented by a great selection of English teas, English beers, and wines. It is open Monday through Friday from 11 a.m. to 4:30 p.m., Saturday and Sunday from 11 a.m. to 5 p.m. and Friday and Saturday for dinner from 6 p.m. to 9 p.m.
»Village Coffee Pot
This coffee house serves an extensive menu of fine coffee products, delicious drinks, and snack foods in a European style atmosphere.
»Wine Den
A little place known as The Wine Den is located just a short trip northwest of Orlando in the beautiful and friendly town of Mt. Dora. This combination wine bar and wine shop is located in the historic district and is the place to go to find that perfect bottle of wine, no matter what the occasion. Choose from a glass or a bottle of a wide selection of wine or micro beers. Don't worry if you have any questions about the wines - the informative staff will assist you. Special events include weekly trivia nights, along with monthly wine tasting and dog-friendly nights. -Diane Dilov-Schultheis
»American Eagle Tavern (Formerly GhostRider Saloon)
During its previous incarnation as GhostRider Saloon, the pub was a hot spot for live music. Taking this tradition forward, the American Eagle Tavern serves as an intimate venue to listen to the performances of local and national bands. Gulp down ice-cold beer, munch on scrumptious pub grubs and hangout with your friends as bands like Evil Monkey and Adaliah entertain you with music. Open till 2a everyday, the pub also hosts ladies nights and open mic nights. Call ahead to know more.


text:
"He sets a good example. He's a hard worker, a great person, a good guy. He tries to do everything that you want him to do. ... I think that his energy level and his example certainly affect other people."
Nick Saban
"Leadership is practiced not so much in words as in attitude and in actions."
Harold S. Geneen
"Throw away those books and cassettes on inspirational leadership. Send those consultants packing. Know your job, set a good example for the people under you and put results over politics. That's all the charisma you'll really need to succeed."
Dyan Machan
"Really, if the lower orders don't set us a good example, what on earth is the use of them? They seem, as a class, to have absolutely no sense of moral responsibility."
Oscar Wilde
"Society is always taken by surprise at any new example of common sense."
Ralph Waldo Emerson
"Old people are fond of giving good advice; it consoles them for no longer being capable of setting a bad example."
Contributed by: Andy James
François de la Rochefoucauld
"Don't be an example in someone else's theory, write yours using your own examples."
Vikrant Parsai


text:
Credits & Info
- Uploaded
- Apr 28, 2012 | 2:52 PM EDT
If you liked this, check these out!
Madness: Bar Brawl by Nogfish
- Movie
- Rated M
- 139,848 Views
RWD: 014 Dead Lead by Nogfish
- Movie
- Rated M
- 43,870 Views
newgrounds xmas boner by RedMongoose
- Movie
- Rated M
- 25,659 Views
Drink your Milk by RedMongoose
- Movie
- Rated T
- 6,112 Views
Milano Toons 029 by RandomSociety
- Movie
- Rated T
- 5,058 Views
RWD: 026 by RadicalWrongDoers
- Movie
- Rated M
- 9,798 Views
Plenty more like this here!
Pico Day 2012 A day to celebrate the classic characters of NG!
Pico Day 2015 Pico Day 2015 will take place on Saturday, April 25th!
Author Comments
Pico goes to get a haircut... but the Uberkids have something else in mind...
Rated 4 / 5 stars
Not sure why Pico is a blondie in this flash but that don't matter all that much considering how much ass this short kicks.
Hey also the cameos of Pico's Cousin and...Aludcard I think his name was? Yeah was a nice little easter egg for long time pico fans. That said great work and hope to see you at Pico Day 2013!
Rated 5 / 5 stars
Still my favourite entry of pico 2012 and the most entertaining pico short all time.
Still a mystery why his hair isn't the colour it usually is, but than this flah isn't your usual cup of thee eather. Darnell is a boss.
Rated 5 / 5 stars
ok the black guy darnel made this movie hahaha shootin dice kickin ass and provides a good haircut
thats a very cool n***a rite der


text: Nope, feel free to put it in there. On Monday 24 March 2008 12:32:33 Chuck Frain wrote: > I like the wiki idea. I don't think Celeste (she can chime in if she does) > would have a problem dropping that email directly in as a base to work > from. > > > On Mon, Mar 24, 2008 at 8:17 AM, Josh Rhoderick <rhoderickj at gmail.com> > > wrote: > > I think this sounds like a fantastic idea, and it'd be a great way for > > our team to contribute to Ubuntu without requiring any special skills. A > > while back I had a section on our wiki for "projects" but I removed it > > because I wasn't sure whether or not it would be used, but I suggest that > > we wikify this and place it on the wiki under a "projects" page or > > something similar. > > Any objections to that? I look forward to discussing this at the next IRC > > meeting. Just a reminder, the next meeting is Wednesday, April > > 2<https://wiki.ubuntu.com/MarylandTeam/Meetings/2008April02> -- Celeste Lyn Paul KDE Usability Project & HCI Working Group usability.kde.org


text:
Monster Hunter would be way better if it was like thisSure, the meme is a bit old but the added sound effects to the Monster Hunter 3 Ultimate video is what really made this spoof for me. Bravo, Capcom-Unity. [Thanks, Dale!] Comments not appearing? Anti-virus apps like Avast or some browser extensions can cause this. Easy fix: Add [*].disqus.com to your software's white list. Tada! Happy comments time again.
Did you know? You can now get daily or weekly email notifications when humans reply to your comments.


text:
Health News
- Health Tip: Eat Right to Get Through Winter
- Health Tip: Protect Against Carbon Monoxide Poisoning
- Seasonal Flu Vaccine Even Less Effective Than Thought: CDC
- Epilepsy Surgery Gets High Marks From Patients in Survey
- Could Coffee Lower Risk of Multiple Sclerosis?
- Poor Response to Statins May Mean Clogged Arteries
- U.S. Ebola Survivor Dr. Craig Spencer Gives His Side of the Story
- Rear End Takes a Front Seat in Plastic Surgery Offices
- Get Checked for Diabetes While Getting Your Teeth Cleaned?
- Fewer Americans Burdened by Medical Bills: Study
- Transgender Hormone Therapy Doesn't Seem to Pose Major Risks
- Gene Mutations Tied to Leukemia Rise With Age, Study Finds
- More Cases of High Blood Pressure in Less Affluent States
- Good Supermarkets in Poor Areas May Not Prompt Better Eating
- U.S. Pedestrian Death Rate Leveling Off, But Still Too High
Transforming medicine.


text:
Hey you're the one that doesn't want the government protecting us from ourselves, right? Me, I'm the big fat stalin-loving statist that thinks we should have cops. You, you're all about letting some armed gang of thugs "police" the streets, everybody shooting when they feel good about it. I mean isn't that what Madison and Jefferson and Washington and that lot were thinking about? PFnV
Well, considering that cops commit suicide at a rate double than that of the general population and 90% of all cops commit suicide by shooting themselves, you may have something there. 2009 Police Suicide Statistics - Officer.com
The cops didn't commit suicide their guns killed them, the guns hypnotized the cops then they jumped into the cops hand and said pull my trigger and blow your brains out. Friggin Guns
Means, motive, opportunity. Means is there all the time for a gun-owner. Holding constant for motive and opportunity, ta-daaaa. Gun access is way more prevalent in the cop population. Fact. Suicide is more prevalent among the cop population. Don't need Glen Beck's whiteboard to connect those dots. PFnV
Let's try this one: Dealing with criminals is way more prevalent in the cop population. Fact. Suicide is more prevalent among the cop population. Congratulations on yet another attempt (I think this might be attempt # 4,398) at portraying correlation as cause and effect.
Uh huh. It's just a correlation. 51% of suicides are by firearm, "coincidentally." Two possibilities: either people who are likely to kill themselves (for some other reason) buy firearms, or the availability of the firearms exacerbates the impulse. Please don't try the "you're almost as likely to do it by all other means combined" idiotic assault on what we know to be the case. "Let's ban all other causes" is just dumb here. Suicide rates high among gun owners, low for churchgoers » Times Record News Oh and here's one with the map of where you're most likely to commit suicide - the states w/highest gun ownership rates (and in most cases, the most lax gun control) STUDY: Suicide rates higher among gun owners | Local News | PE.com - Press-Enterprise Did all these gun suicides "deal with criminals more often," RI? Or do they just have handy means available when they get an impulse? The purpose of a gun -- by the stats -- is to kill yourself or someone close to you, or, last of all, a stranger -- whether justifiably or not. If you want to do those things buy (or print) a gun. If you want your 4-year-old to do so, buy him one... and a year later, maybe you'll get lucky and be on the teevee. PFnV
Liberals: They mention the NRA They mention the law abiding fool handing a loaded gun to a 5 year old They mention the cop commiting suicide They constantly blame The Gun Have you noticed they never ever mention the filthy smelly animal savage who intends to shoot another savage but always seems to shoot an old lady, an old man, a cat, an empty car, or a little girl selling lemonaide, these wretched human beings with the brains of retarded cave men have never learned to hit what they shoot at, the wordS "moron & retard" was invented for them. Why does the Left Wing Liberal Media and all other Moonbat hand wringers repeatedly go after the Law Abiding Citizen and The NRA but never even a whisper about the Filthy Criminal. What makes the liberal brain want to coddle the criminal, little by little it is starting to grow with the Boston Bombers? WHY--------------
Why are you okay with criminals and terrorists buying guns and ammo from your buddies at gun shows or over the internet? What is this the NRA's version of "Don't ask, Don't Tell"?
How is it "blaming the gun" to background-check prospective buyers? Cons have this fetish for guns, acting as if they're people or more accurately deities with their own rights and their own feelings which must be respected. Your magic thunder-stick's just a machine, Harry. Don't tell me how I "blame" the gun when you spend all your time bending all ideas and phenomena as hard as you can toward your bumper sticker about what kills people. Background checks are for people, not the background of the fuggin gun. PFnV
Gunshows that sell guns to known criminals should be shut down. Known criminals who are caught carrying or using a gun should go to prison for 25 years no possible parole NO TRIAL NO LAWYER. Anybody caught selling a gun on the street corner should go to jail for 25 years no possible parole NO TRIAL NO LAWYER. Every citizen of the United States who has no criminal record should be trained and pass a rigid firearm exam then they should be issued a concealed weapon permit allowed to carry a firearm. We have dozens of "gun laws on the books right now that are never used by our politically correct wimpering civil liberty liberal justice system. CRIMINAL PIG DOGS PAY NO ATTENTION WHATSOEVER TO ANY TYPE OF LAW GUN LAWS, LAWS MEAN NOTHING TO THE MURDERING SAVAGE.
Harry, if they won't do a background check then how is anyone supposed to know if they are selling to a criminal, an illegal alien or someone on a terror watch list?
That's another dumbazz con man talking point I've had enough of... "There are already X gun laws on the books..." Yeahhhhh okay how many municipalities do you know that have a law against discharging a firearm, where you have to do your huntin' an' target shootin' out in "the counties"? Add all those up and you get a whoooole lot. Screw it though. Let's just have a single, federal, very sensible law: you have to have your gun on your person or locked in a safe. You have to pass a background check. You have to certify annually like you would if your firearm were part of your job. And just to make RI happy, no you can't print your gun -- every firearm must be traceable. PFnV
Ok, so you're for open carry and the rights of teachers and sutdents to protect themselves on school grounds. Excellent PFV....you can learn afterall.
I don't think I've ever said I'm against a background check, they did it to me when I obtained a permit, they did it in Mass and then again in Maine.
Yes, it is absolutely just correlation. There is no cause and effect realtionship between owning a gun and committing suicide. None.....zero. Worldwide, hanging is the cause of more suicides than guns. Ban rope? Drugs and pesticides are the most common cause of suicide in Europe and Asia. Ban pesticides and perscription drugs? WHO | Methods of suicide: international suicide patterns derived from the WHO mortality database You want more useless correlation. In Japan, there are 6 guns for every 1000 people. In the USA, there are 888 guns for every 1000 people. In Japan, there are 21.7 suicides for every 100,000 people. In the USA, there are 12.0 suicides for every 100,000 people. Number of guns per capita by country - Wikipedia, the free encyclopedia List of countries by suicide rate - Wikipedia, the free encyclopedia So, on average, Americans own 148 times more guns than the Japanese but the Japanese commit 75% more suicides than Americans. So I guess I can conclude from this, using the "correlation method".....guns help save people from committing suicide.
Well, I suppose if I lived in Europe, Asia or Japan, I'd worry about rope and pesticides....but I don't. I live here in the United States...and here in the United States, guns far outweigh all other methods of suicide. All suicides Number of deaths: 38,364 Deaths per 100,000 population: 12.4 Cause of death rank: 10 Firearm suicides Number of deaths: 19,392 Deaths per 100,000 population: 6.3 Suffocation suicides Number of deaths: 9,493 Deaths per 100,000 population: 3.1 Poisoning suicides Number of deaths: 6,599 Deaths per 100,000 population: 2.1 FASTSTATS - Suicide and Self-Inflicted Injury
Wow......more impressive correlation. I see it runs in the family. The family that comes to illogical conclusions together, stays together. Your point is meaningless. There is no proof that less guns equals less suicides. I've just given you proof to show just the opposite. Heck, I can show it over and over again in country after country. There is no cause and effect relationship.


text:
800-222-4832 Call for reservations now.
Blue Waters Resort Motel is a Florida Keys Resort Motel, located in Marathon, Florida Keys it is a beautiful resort motel with it's own private marina.
Follow Us on facebook. Check for available discounts.
When in Islamorada visit our sister hotel, the Days Inn.
Click image to enlarge.
This is a map of the Local area. We are Located in the city of Marathon. That is on Vaca Key, in the Florida Keys.
Our Address is:
2222 Overseas Hwy. Marathon, FL 33050
This is a map of the Keys. and where we are in relation to the whole of the Florida Keys.


text:
Detroit and Hilton Head airports and terminals
Airports in Detroit MI, US
Detroit Wayne County Airport (DTW)
Distance from City Center: 17.5 miles
Willow Run (YIP)
Distance from City Center: 26 miles
Airports in Hilton Head SC, US
Hilton Head Airport (HHH)
Distance from City Center: 3.3 miles
Savannah-Hilton Head (SAV)
Distance from City Center: 26.9 miles
Earn up to 5% on hotels and 1% on flights - It's free!
By clicking, I agree to the terms and conditions.
Sun | Mon | Tue | Wed | Thu | Fri | Sat |
1 | 2 | 3 | 4 | 5 | 6 | 7 |
8 | 9 | 10 | 11 | 12 | 13 | 14 |
15 | 16 | 17 | 18 | 19 | 20 | 21 |
22 | 23 | 24 | 25 | 26 | 27 | 28 |
29 | 30 | 31 |
Highlighted price = Cheapest round-trip flights
Prices are round trip per person (conditions apply)
Featured Hilton Head Airport Hotels
Hampton Inn Hilton Head
1 Dillon Road Map
Free On The HouseT hot breakfast, Wi-Fi
...Transportation Hilton Head Airport (1 mi/1.6 km).... More
Tucked away among miles of beautiful beaches Island Links Resort on Hilton Head Island welcomes you to one of Americas premier leisure destinations.... More
Tucked along the beach within Hilton Head Island's acclaimed Port Royal Plantation is Marriott's Barony Beach Club.... More
The Westin Hilton Head Island Resort & Spa
Two Grasslawn Avenue Map
Save 40% on your stay
...Transportation Hilton Head Airport (4 mi/6.4 km).... More
Conviently located on the Northside of Hilton Head Island This European Inn, one of Hilton Head's "Best Kept" Secrets, is a tranquil enclave from the rest of the world filled with the most lavish... More
Traveling from Detroit to Hilton Head
Detroit Metro Airport
The Orbitz.com website makes it easy to find cheap flights from Detroit to any destination. The Detroit Metro Airport is located at 9000 Middlebelt Road, approximately 21 miles from downtown Detroit. Twelve airlines service the airport, including Delta Airlines, Frontier, Air Tran and American Airlines. When you use Orbitz.com to book your flight, the website searches flights from all available airlines so you can choose a flight with cheap tickets.
Parking and Transportation
The Detroit Metro Airport offers long-term parking for $10 per day. It also runs complimentary shuttle services from the parking lots to the airport terminals. If you're traveling for more than four days, it's cheaper to take a cab to the airport. Cab fare from downtown Detroit costs $44.50. If you need access to a vehicle when you arrive at your destination, you can reserve a rental car using the Orbitz.com website. This way, you can get from the airport to your hotel without relying on public transportation.
Dining at the Airport
There are a variety of restaurants located at the airport including Chili's, Diego's Mexican Cantina, Detroit 500 and Fuddruckers. When you book your flight using Orbitz.com, you have plenty of time to grab a quick meal before your flight, because your travel arrangements are made before you arrive at the airport. The Orbitz.com website does more than find cheap flights from Detroit; it has all the tools you need to plan your entire trip.
Hilton Head Airport Information
When you book your cheap flights to Hilton Head using Orbitz.com, you can choose to fly into the Hilton Head Island Airport or the Savannah/Hilton Head International Airport. The Hilton Head airport is convenient but has limited flights, while the Savannah airport has flights to many major cities via several airlines, but it is located more than 40 miles away.
Ground Transportation in Hilton Head
There are several taxi companies in the Savannah and Hilton Head areas that offer transportation from the airports to the Hilton Head area. If you landed at the Savannah airport, expect a taxi to Hilton Head to cost roughly $80. You can also hire a private car or limousine service or grab a share-a-ride shuttle at the Savannah airport. When you book your low-fare air tickets through Orbitz.com, you might want to consider adding in a rental car, so you can easily explore the island during your stay.
Hilton Head Area Weather Information
South Carolina's Hilton Head region has mild winters that range between the high 30s and high 50s, but summer temperatures can soar past 90 degrees Fahrenheit. For many travelers, Hilton Head is a summer destination, but you need to be prepared if you plan to visit during June, July or August, as they are the rainiest months of the year. Make sure to pack a lightweight rain slicker or umbrella to keep you dry if you plan to be there during the warmer months.
What to Do in Hilton Head
As Hilton Head is located on an island, many of the attractions and things to do revolve around the water. When you get tired of the beach, you might want to visit the Island Winery, the Harbour Town Lighthouse or the Adventure Cove Family Fun Center. Hilton Head is also a mecca for golfers, and there are plenty of private and public world-class golf courses in the area to satisfy everyone. Enjoy your stay, and remember to use Orbitz.com the next time you need to find cheap flights to Hilton Head.
Flight schedule for flights from Detroit to Hilton Head on Sun, Mar 1, 2015
Carrier | Flight # | Departing | Arriving | Aircraft | Flight time | ||
Airport | Time | Airport | Time | ||||
American Airlines/American Airlines | AA5054/AA4900 | DTW | 5:00 AM | HHH | 8:58 AM | CR7/DH3 | 3hr 58min |
American Airlines/US Airways | AA5054/US4900 | DTW | 5:00 AM | HHH | 8:58 AM | CR7/DH8 | 3hr 58min |
US Airways/American Airlines | US5054/AA4900 | DTW | 5:00 AM | HHH | 8:58 AM | CR7/DH3 | 3hr 58min |
US Airways/US Airways | US5054/US4900 | DTW | 5:00 AM | HHH | 8:58 AM | CR7/DH8 | 3hr 58min |
American Airlines/American Airlines | AA1943/AA4727 | DTW | 6:30 AM | HHH | 12:37 PM | 320/DH3 | 6hr 7min |
American Airlines/US Airways | AA1943/US4727 | DTW | 6:30 AM | HHH | 12:37 PM | 320/DH8 | 6hr 7min |
American Airlines/American Airlines | AA879/AA4727 | DTW | 8:20 AM | HHH | 12:37 PM | 321/DH3 | 4hr 17min |
American Airlines/US Airways | AA879/US4727 | DTW | 8:20 AM | HHH | 12:37 PM | 321/DH8 | 4hr 17min |
US Airways/American Airlines | US1943/AA4727 | DTW | 6:30 AM | HHH | 12:37 PM | 320/DH3 | 6hr 7min |
US Airways/US Airways | US1943/US4727 | DTW | 6:30 AM | HHH | 12:37 PM | 320/DH8 | 6hr 7min |
US Airways/American Airlines | US879/AA4727 | DTW | 8:20 AM | HHH | 12:37 PM | 321/DH3 | 4hr 17min |
US Airways/US Airways | US879/US4727 | DTW | 8:20 AM | HHH | 12:37 PM | 321/DH8 | 4hr 17min |
American Airlines/American Airlines | AA2078/AA4775 | DTW | 10:20 AM | HHH | 2:03 PM | 319/DH3 | 3hr 43min |
Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 48 hours. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.


text:
Publications (3)2.49 Total impact
- [Show abstract] [Hide abstract]
ABSTRACT: Sera from 53 sheep belonging to Castellano, Churro, Manchego, and Merino breeds were analyzed to test the diagnostic value of a 26-kD antigen from adult Haemonchus contortus at prepatency and early and late patency of experimental haemonchosis. Animals that received zero, 1, or 2 infections with the parasite were tested. In addition, sera from 20 experimentally infected and 10 noninfected Texel sheep were used to test the antigen. Sera from 37 infected animals at prepatency as well as at patency in primary and secondary infection were found positive with the 26-kD antigen. However, sera from 10 animals with the lowest worm burdens (second infection) did not recognize the antigen during early patency (day 28 postinfection). IgG1 was the only isotype implicated in antigen recognition because IgG2, IgA, and IgM, in the same sera, showed no reactivity with the peptide. Antigen specificity was confirmed because hyperimmune sera against infective larvae and adult stages of the most common gastrointestinal nematodes found in natural infections in sheep (Trichostrongylus colubriformis and Teladorsagia circumcincta) did not recognize this peptide. The antigen was recognized only by anti-adult H. contortus hyperimmune sera and appeared to be absent in the L3 parasite stage. In addition, the partial N-terminal amino acid sequence of the diagnostic peptide is reported.Journal of veterinary diagnostic investigation: official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 08/2000; 12(4):354-60. · 1.23 Impact Factor -
Article: Pharyngeal bot flies in Cervus elaphus in central Spain: prevalence and population dynamics.
[Show abstract] [Hide abstract]
ABSTRACT: The prevalence and intensity of infestations by bot flies Pharyngomyia picta and Cephenemyia auribarbis in red deer (Cervus elaphus) from Quintos de Mora (Toledo, Spain) were determined over a 1-yr period. Bots were present all year. No clear correlations were found between age or sex of the host and parasitization levels (prevalence and intensity). Considerable variation was found in prevalence and intensity, with larger values from December to March. Cephenemyia auribarbis was restricted from November to March, with maximum numbers of L-3 in February. Pharyngomyia picta showed a more complex profile with 2 peaks (March and August), indicating 2 generations per year.Journal of Parasitology 03/2000; 86(1):33-7. · 1.26 Impact Factor
Publication Stats
3 | Citations | |
2.49 | Total Impact Points | |
Top Journals
Complutense University of Madrid
- Facultad de Veterinaria
Madrid, Madrid, Spain


text:
NRA members are too busy shooting themselves, their friends, and innocent bystanders at gun shows!THE EVIDENCE SHOWS THAT ALL REGISTERED DEMOCRATS SHOULD BE CONFISCATED.
We know who they are-~ they're registered!
Why is it that none of the disturbed and evil men, who steal guns, then go and kill movie-goers and children in school, has ever been identified as a conservative NRA member?...
The "Gun Appreciation Day" victims also include UPI reports that a Dallas man was arrested when a gun discharged in his pocket while he was shopping at Walmart, injuring two other people; the Cleveland Plain Dealer reports a six year old girl shot herself in the face while handling her fathers gun; and the Atlanta Journal Constitution reports a 14 year old boy accidentally shot and killed his 15-year old brother with his mothers handgun. Undoubtedly, the owners of all these guns were NRA members.


text:
Løkken Pub
Løkken Pub is situated in the centre of Løkken, in the same historic and charming buildings as the local brewery "Løkken Bryghus.
At the pub you can get the local beer from Løkken Bryghus.
Please call for opening hours.
Opening hours | |||
14/04/2014 - 31/08/2014 | Monday - Sunday | - |


text:
VIEWS: 25 PAGES: 6 CATEGORY: Photos & Photography POSTED ON: 8/10/2011
A "Gen 2" RFID Monitor Based on the USRP Michael Buettner∗ David Wetherall† ∗ ∗ † University of Washington Intel Labs Seattle firstname.lastname@example.com email@example.com ABSTRACT goods [14, 13]. In 2008, the US Passport Card and the New We have developed a low cost software radio based plat- York and Washington state Enhanced Drivers Licenses were form for monitoring EPC Gen 2 RFID traffic. The Gen introduced. They contain embedded Gen 2 RFID tags that 2 standard allows for a range of PHY layer configurations can be read from up to 50 meters away [11]. The cards were and does not specify exactly how to compose protocol mes- ostensibly introduced to reduce delays at border crossings. sages to inventory tags. This has made it difficult to know New uses that stretch the initial vision of RFID are emerg- how well the standard works, and how it is implemented ing, as the capabilities of RFID devices advance to include in practice. Our platform provides much needed visibility computation, storage and sensing [16]. into Gen 2 systems by capturing reader transmissions using Given this rapidly growing application space, understand- the USRP2 and decoding them in real-time using software ing how Gen 2 RFID operates in practice is of significant we have developed and released to the public. In essence, interest to improve current deployment practices, and to our platform delivers much of the functionality of expensive identify research challenges in RFID protocols and systems. (> $50,000) conformance testing products, with greater ex- The Gen 2 standard allows for great flexibility in terms of tensibility at a small fraction of the cost. In this paper, we both physical layer configuration and the sequence of reader present the design and implementation of the platform and commands that can be used to inventory tags. It is impor- evaluate its effectiveness, showing that it has better than tant to understand the impact and trade-offs of these imple- 99% accuracy up to 3 meters. We then use the platform mentation decisions. Unfortunately, gaining visibility into to study a commercial RFID reader, showing how the Gen RFID deployments is difficult because existing RFID read- 2 standard is realized, and indicate avenues for research at ers are black box systems. They allow limited configuration both the PHY and MAC layers. and return high-level results that simply list tags in range of the reader. They do not expose low-level behavior such as PHY layer configuration, MAC protocol realization, or Categories and Subject Descriptors error rates and timing information. This makes diagnosing C.2.2 [Computer-Communication Networks]: Network problems difficult, and gives researchers little insight into Protocols the challenges faced by real-world RFID deployments. Because the fine-grained behavior of current systems is General Terms poorly understood, existing analytical [9, 12] and simulation studies [6] of RFID are based on idealized versions of both Experimentation, Measurement the Gen 2 standard and RFID device performance. Though tools for detailed evaluation of RFID readers and tags exist, Keywords they are expensive (>$50K) as they are built using high-end RFID, EPC Gen 2, Software Defined Radio equipment such as vector signal analyzers and proprietary software [8, 1]. Additionally, they are targeted at confor- mance testing in a lab setting and are ill-suited to analyzing 1. INTRODUCTION real-world deployments in situ. As a result, existing stud- Radio Frequency IDentification (RFID) is an emerging ies of deployed systems have generally been coarse grained wireless technology that allows small, inexpensive computer and derive performance metrics from simple read rate [2, 7]. chips to be remotely powered and interrogated for identifiers We aim to provide a tool whereby researchers can conduct and other information. While there are many kinds of RFID, low-level studies of deployed systems at a reasonable cost. e.g., HF RFID in credit cards, recent advances in RFID have In this paper, we present a Gen 2 RFID monitoring plat- focused on passive UHF RFID as standardized by the EPC form that provides deep visibility into the operation of RFID Class-1 Generation-2 (Gen 2) specification in 2004 [4]. systems. To achieve this, we use the Universal Software Gen 2 RFID was originally developed as a replacement for Radio Peripheral 2 (USRP2) to capture RFID signals and barcode identification systems. It provides key advantages software developed using GNU Radio to decode reader com- such as read ranges of more than 10 meters, non-line-of-sight mands. Commercial solutions are built upon signal ana- operation, high inventory rates, and rewritable product IDs. lyzers capable of GS/s sampling rates. However, the 25 It has seen widespread deployment for tracking pallets in MS/s sampling rate of the USRP2 is sufficient for capturing the supply chain and is rapidly expanding to new applica- the complete 25 MHz RFID band with high fidelity. This tions such as large scale, item-level tracking of consumer ACM SIGCOMM Computer Communication Review 42 Volume 40, Number 3, July 2010 makes our solution cheap and portable as it consists of only a USRP2 and a laptop. By using the open source GNU Ra- dio toolkit to process signals on the host, the software is free Backscatter Tag Response and can be easily modified by researchers. Amplitude Our monitoring system decodes all RFID reader transmis- sions in the RFID band and outputs a message level trace of reader behavior. These traces show the design decisions Reader Message made by vendors when realizing the Gen 2 protocol, and illuminate real world dynamics such as error rates and pro- tocol timing; such factors are critical for realistic analytical 0 and simulation studies. We expect that our platform will 10.5 11 11.5 12 12.5 13 13.5 be helpful for identifying bottlenecks in RFID systems and Time (ms) thus avenues for further research; our previous, less capable version has already proven useful in this capacity [3]. Figure 1: Reader message and tag response We make three main contributions in this work. First, we present the design and implementation of our system, show- ing how a low-cost SDR platform and open-source software RN16 Tag ID can be used to create a powerful Gen 2 RFID monitoring Query QueryRepeat Amplitude tool. We show that our tool can decode reader commands across the complete RFID band with better than 99% ac- curacy at 3 meters. Second, we use our monitor to study a commercial RFID reader and, to the best of our knowl- ACK edge, present the first description of how the Gen 2 protocol is realized in practice. As part of this study, we find that algorithms for PHY layer rate adaptation and cross-layer 0 5 10 15 20 25 30 techniques that factor the capture effect into MAC behavior Time (ms) are rich areas for further research. Lastly, this paper can be viewed as a companion document to our monitor system Figure 2: Message exchange for a Query round software which can be downloaded from the Comprehen- sive GNU Radio Archive.1 We hope that by demonstrating Passive RFID tags do not technically transmit any energy. how our monitor can be used to explore existing systems, Instead, they manipulate how well they reflect (backscat- researchers will use our platform as a foundation for the ter) the incident CW. This reflected signal, though weak, is development of new tools for research. received by the reader which decodes the modulated data. Uplink modulation is determined by two parameters speci- 2. GEN 2 RFID BACKGROUND fied by the reader; uplink frequency and data encoding. Gen In this section we introduce the Gen 2 PHY and MAC lay- 2 specifies four encodings schemes that differ in the number ers to motivate the design of our monitoring system. Gen of cycles per symbol (varying from one cycle to eight). For 2 tags are fully passive, which means they harvest the en- a given link frequency, an encoding using more cycles will tirety of the operating energy from nearby RFID readers. have a lower data rate, but will be more robust to noise. The specification was designed with two major constraints Figure 1 shows communication between a reader and tag in mind. First, it must be implementable on very low cost as captured by a USRP. The CW results in the DC offset RFID tags (each costing a few cents) that are wirelessly pow- of the received waveform, with the series of low amplitude ered and computationally weak. Second, it must operate in pulses being a reader transmission. The backscattered tag a regime where readers can communicate with tags and vice response can be clearly seen as a combination of the inci- versa, but tags cannot communicate with each other or even dent CW and the reflected CW from the tag. It should be hear other tag transmissions. noted that the signal seen in the figure was captured with the USRP antenna placed inches from the RFID tag. This 2.1 Gen 2 Physical Layer accounts for the prevalent backscatter signal. To limit interference with other devices in the 902–928 MHz The Gen 2 physical layer has the dual purpose of maximiz- ISM band, FCC regulations stipulate that UHF RFID sys- ing harvestable power at the tags, and facilitating downlink tems frequency hop across fifty 500 kHz channels, with dwell and uplink communication. While a reader is communi- times no longer than 400 ms. However, because tags do not cating with tags it must transmit a continuous RF wave "tune" to different channels, when multiple readers are ac- (CW); tags power themselves by harvesting the energy in tive in an area their transmissions will collide at tags even this RF signal. Down-link communication uses On/Off Key- if the readers are on different channels. ing where bit boundaries are indicated by brief pulses of zero amplitude in the CW, and Pulse Interval Encoding (PIE) where the time between zero amplitude pulses differentiates 2.2 Gen 2 MAC Layer a zero or a one. Depending on PIE durations, downlink Gen 2 tags decode reader transmissions using a simple rates range from 27 kbps to 128 kbps. edge detector that detects the conspicuous zero amplitude Uplink data rates are between 5 kbps and 640 kbps, and pulses in the CW. However, tags are unable to decode, or communication is achieved via "backscatter" transmission. even detect, the backscattered signals of other tags. This is in contrast to Ethernet or 802.11 where nodes can hear 1 https://www.cgran.org/wiki/Gen2 each other, at least when they are not transmitting. Conse- ACM SIGCOMM Computer Communication Review 43 Volume 40, Number 3, July 2010 quently, the Gen 2 MAC protocol is based on Framed Slotted Aloha [15] which was designed to operate in a context where transmitting nodes cannot hear each other. The general model of RFID is that readers are continu- ously "inventorying", i.e., looking for tags that are in range. An inventory round begins with the reader transmitting a Query command that indicates the number of slots in the frame. The number of slots in a frame is a power of two in the range [1, 32768]. After receiving a Query, tags randomly choose a slot in which to reply, and transmit a 16-bit random number (RN16 ) in that slot. If the reader receives an RN16 in a slot, it ACKs the RN16 and the tag that transmitted it replies with its 96-bit identifier. Tags that collide in a slot are not ACKed and respond again after the next Query. Figure 2 shows a message exchange with only one tag present. In the example, the reader powers up and transmits a Query message that specifies four slots in the frame. The first slot immediately follows the Query command, and is empty in this example. The second reader command is a QueryRepeat which indicates the beginning of a new slot. Figure 3: Monitor system diagram In this case, the tag had chosen the second slot and so it transmits its RN16 in response to the QueryRepeat. It is reader traffic is logged. The following subsections detail the then ACKed by the reader, and transmits its ID. Because salient features of these components. the reader specified four slots in the Query, it sends two additional QueryRepeats looking for any remaining tags. In 3.1 Capturing RFID Signals this case, there is only a single tag so the last two slots The USRP2 is a more powerful version of the original are empty. The reader then powers down. This example USRP, and has a complex sampling rate of up to 25 MS/s. illustrates a very simple Gen 2 message exchange and does This is just sufficient for capturing the entire UHF RFID not describe every message defined by the protocol. We will band. The USRP2 is combined with an RF front-end that examine more complex scenarios when we look at how the downconverts signals from the 900 MHz ISM band to base- complete MAC is implemented in a commercial reader. band, and an onboard FPGA samples this baseband signal and transmits it over GigE to the host PC. 3. SYSTEM DESIGN AND EVALUATION Though the USRP2 can sustain 25 MS/s over the GigE Our monitoring platform aims to provide much of the interface, GNU Radio cannot process a 25 MS/s signal using functionality of commercially available RFID analysis tools, currently available host machines without falling behind and but with greater flexibility and at a fraction of the price. dropping samples. For example, we were unable to simply One key insight is that commercial RFID analytics solutions write the signal to disk for offline processing, or convert the are generally add-on modules to high-end signal analyzers stream from complex I/Q data to amplitude data, without capable of many gigasamples per second. This is far more losing large swaths of data. than is necessary to capture the 900 MHz ISM band. Without modifying the FPGA code of the USRP2, the By using lower end hardware and open source software, sample rate over the GigE interface can only be reduced via we give researchers a low cost tool for monitoring RFID decimation. Decimation consists of an initial low-pass filter traffic that can be completely modified by the user. While followed by downsampling to reduce the sample rate. The our monitoring system does not currently provide all the low-pass filter is generally needed because simply downsam- functionality of commercial systems, the hardware platform pling a signal results in aliasing, where non-existent low fre- can theoretically support a complete suite of analysis tools. quency components are introduced into the signal because This includes decoding tag transmissions and messages from the Nyquist rate of the high frequency components is vio- multiple, simultaneously transmitting readers. This would lated. However, when decimating at the USRP, the low-pass be useful for studying existing large scale deployments [19]. filter reduces the width of the frequency band and the host By releasing our software to the community, we hope that does not receive the complete RFID band. researchers will continue to build upon our work. Because Gen 2 uses On/Off Keying, frequency aliasing The hardware platform we use is the Universal Software does not effect demodulation. Hence, we reduce the sam- Radio Peripheral 2 (USRP2) developed by Ettus Research. ple rate while capturing the entire 25 MHz band by down- Signal processing is performed on the host using software sampling by a factor M at the host as the first step in the developed using the GNU Radio framework. The overall processing graph. This allows us to tune the USRP2 to the system architecture is shown in Figure 3. Our monitoring center of the ISM band, and still capture traffic at the edges. system is placed close to an RFID reader, and the USRP2 In our implementation, M is tunable so users can reduce captures the reader transmissions. The digitized signal is the sample rate until their host can keep up with the signal streamed to the host PC over GigE and processed using both stream. The sample rate must remain high enough to accu- stock and custom GNU Radio signal processing blocks. Our rately represent the signal, with higher sample rates being custom blocks are shaded in the diagram. The signal under- more robust to noise. We find that a sample rate of 3 MS/s, goes initial signal processing steps, reader transmissions are which can easily be supported by most host computers, is decoded by the Edge Detector and Bit Decoder blocks, and sufficient to capture the highest rate reader transmissions. ACM SIGCOMM Computer Communication Review 44 Volume 40, Number 3, July 2010 Time Command Bits Length Inter- 1.02 (s) (us) Arrival Correct / Total 20.294363 P-DWN NA NA 592 ACKs / Tag Reads 20.299102 QUERY 0x8D4064 955 3556 1 20.300731 QUERY 0x8D4250 955 748 Ratio 20.301414 QREP 0x0 222 540 0.98 ··· 20.309600 QREP 0x0 222 535 0.96 20.311117 ACK 0x7EF84 872 746 20.314011 QREP 0x0 224 2614 0.94 1 1.5 2 2.5 3 3.5 4 Table 1: Reader message trace Distance (m) Figure 4: Monitor accuracy the approximate duration of the ID backscattered by the tag 3.2 Decoding Reader Messages by inspecting the Inter-Arrival value for the last QueryRe- Decoding reader transmissions is relatively straightfor- peat(QREP) as this measures the time from the last edge of ward. In essence, our monitor needs to solve the same de- the reader ACK to the first edge of the QueryRepeat. This coding challenge as RFID tags, using hardware costing a few gives us a good estimate of the duration of tag transmis- thousand dollars instead of a few cents. The signal is condi- sions, as the periods between reader commands and tag re- tioned for decoding by converting the complex I/Q samples sponses (and between tag responses and reader commands) to amplitude samples, and then passing the signal through is constrained by the Gen 2 standard to within a few mi- an averaging filter to smooth out noise. An example of the croseconds. resulting signal is shown in Figure 1. Decoding consists of two parts. First, the low amplitude 3.4 Evaluating Monitor Accuracy pulses of reader transmissions are detected by finding neg- In this section we evaluate how accurately our monitor atives edges in the signal. This is done by comparing each decodes reader messages. We require that it perform well incoming sample against a running average of the signal am- out to at least a few meters, because it may not always be plitude. Negative edges due to noise are ignored by only feasible to place our monitor directly beside the reader. triggering on edges that drop below 90% of the average am- As we do not have "ground truth" data showing what mes- plitude; we found this threshold to work well in practice. sages the reader actually transmitted, we use two heuristics The second part is determining the bits in the signal by to evaluate our monitor. First, we look at how often the inspecting the duration between low amplitude pulses. Each monitor self-reports errors in decoded messages. Reader reader message is preceded by a preamble which encodes, messages begin with a command code that identifies the among other things, the duration of a "0" and a "1", with Gen 2 command, and each command has a unique length. a "1" being approximately twice as long as a "0". 2 The When a reader transmission is detected by our monitor, the monitor extracts this timing information from the preamble, subsequent message must match both of these features for a and uses it to distinguish the subsequent bits in the message known Gen 2 messages, otherwise an error is logged. For the body. End of message boundaries are detected when no second heuristic, we compare the number of ACKs detected negative edge is seen for a duration greater than twice a "1" by the monitor with the number of tag reads reported by bit period. The decoded bits are then logged. the reader, as there must be at least one ACK transmitted 3.3 Logging Message Traces per tag read reported. For our experiment, we deployed one Impinj Speedway Decoded reader messages are timestamped and written to RFID reader and our monitor, along with one Alien "Omni- a trace file on the host. All bits and preamble timing data Squiggle" RFID tag. Both the monitor antenna and the are logged. This allows us to determine details such as the RFID tag were placed approximately one meter from the PHY layer parameters, the number of slots specified by the transmitting antenna of the reader. The reader invento- Query command, and the RN16 sent in the ACK command. ried the tag continuously for one minute while the monitor If the decoded bits do not match a valid Gen 2 command, a gathered trace data. The reader initially transmitted at 30 decoding error is noted in the trace. dBm, the maximum allowed by the FCC. After each one The duration of each message is noted, beginning with minute run the transmit power of the reader was reduced. the first negative edge and ending with the last, as is the This approach keeps the multipath environment stable be- interarrival time. These values are calculated based on the tween experiments. We present results in terms of equivalent number of samples between these points and the time per distance using free-space propagation, as we find this more sample. This results in a complete trace of all reader traffic intuitive than results in terms of transmit power. in the RFID band, with microsecond resolution. Figure 4 shows the results when the reader was configured Table 1 shows a section of a trace file. In the interest of with a 27 kbps downlink. We experimented with other con- space, PHY layer parameters gleaned from message pream- figurations, and found similar results. The data consists of bles have been elided. Both Length and Inter-Arrival are over 50,000 logged events at each distance. The solid line shown in microseconds. Inter-arrival timing is useful for fill- shows the ratio of error-free messages to the total number of ing in blanks in the trace. For example, we can determine messages detected, with the y-axis spanning approximately 2 For more details, we direct interested readers to the Gen 2 94%–100%. Out to three meters, more than 99% of detected standard [4]. messages were decoded without errors. ACM SIGCOMM Computer Communication Review 45 Volume 40, Number 3, July 2010 The figure also shows the ratio of ACKs decoded com- formance. We also proposed a technique where readers dy- pared to the number of tag reads reported by the RFID namically adapt their PHY layer configuration to increase reader. By this metric also, our monitor is approximately performance. The Impinj reader provides something very 99% accurate at three meters. One thing to notice is that similar with their "AutoSet" mode, and using our monitor this ratio can be slightly greater than 1. This is because we can determine how their approach is implemented. when a tag ID is received with bit errors, the reader must To determine how "AutoSet" mode adapts to varying con- retransmit the ACK. However, the read rate was constant ditions, we had the reader continuously read one tag as from 1 to 4 meters and we found that bit-errors did not equivalent distance increased from one to six meters, and appreciably increase; our monitor just becomes less able to reader messages were logged using our monitor. According decode the ACKs. Overall, our monitor has an accuracy well to the Gen 2 protocol, if bit errors are detected in the tag above 90% to approximately 4 meters, which is sufficient for ID, the reader must send a NAK message to tell the tag to the intended deployment scenarios. retransmit. Consequently, NAK messages are a good proxy for uplink error-rate, though bit errors in the RN16 and 4. EXPLORING THE STATE OF THE ART messages below the noise floor are not detected. We found that the incidence of ACKs immediately followed by a NAK In this section, we use our monitor to closely examine increased with distance from less than 1% at one meter to the behavior of a commercial reader at the message level. more than 75% at six meters. Thus, the reader would be It has been difficult to know how Gen 2 is implemented expected to adapt to the changing link quality. in commercial systems as many implementation details are Examining the details of the Query messages, we found left to the vendor. For example, choices at the physical that only three distinct PHY configurations were used. All layer can result in downlink rates that vary by more than three used a 35 kHz downlink with the uplinks being 320 a factor of four, and uplink rates can vary by more than kbps/FM0, 68 kbps/Miller-4, and 20 kbps/Miller-8. When two orders of magnitude. At the MAC layer, the precise no tags are present, the 68 kbps uplink is used. When a tag sequence of commands used to inventory tags is not specified is placed close to the reader, the reader generally operates by the standard, and it is unclear how real systems choose using the 68 kbps configuration, but just before the reader frame sizes to efficiently read a given tag population. These powers down it transmits one last Query using the 20 kbps implementation choices made by vendors are key to reader configuration; ostensibly to "pick up" any remaining tags performance, and the design trade-offs of these choices are with weak uplinks. poorly understood. One surprising find was that the 320 kbps uplink is only 4.1 Experimental Setup used when the tag is far from the reader and the error rate is very high. In this case, the reader begins most rounds The data presented in this section was gathered using an using the 320 kbps configuration, but continues to end each Impinj Speedway reader, our monitoring system, and up to round with the more robust 20 kbps rate. We do not entirely 64 Alien "Omni-Squiggle" RFID tags depending on the ex- understand this behavior, particularly because at 6 meters periment. The monitoring system consisted of a USRP2 and 97% of the IDs sent at 320 kbps had errors, whereas only a Lenovo T61 laptop running 64-bit Linux. The antenna for 19% had errors when sent at 20 kbps. Even considering the our monitor was placed inches from the reader antenna to faster uplink, the protocol overhead associated with errors generate the most accurate trace possible. The traces were would seem to make this strategy far from optimal. seen to have an error rate no greater than 1%. This er- We expect that we did not capture all the behavior of the ror rate was calculated as described in the previous section. "AutoSet" mode with our simple experiment. However, our Unless otherwise specified, tags were placed on a sheet of findings suggest that there is potential for the further devel- poster board located one meter from the reader. The trans- opment of dynamic PHY layer algorithms. Our monitor can mit power of the reader was varied and equivalent distance be used to build realistic error models for readers in their calculated based on free-space propagation. deployed scenarios, and these can be used to inform analyt- 4.2 Physical Layer Rate Adaptation ical and simulation studies of such algorithms. The Gen 2 specification allows for a wide range of PHY layer configurations. Manufacturers are free to choose down- link rates from 27 kbps to 128 kbps and uplink rates from 5 kbps to 640 kbps. There are four uplink encodings (FM0, 4.3 MAC Layer Frame Size Selection and Miller-2/4/8) that vary in how many cycles they use per One key factor in reader performance is accurate frame symbol, with more cycles reducing the data rate but being size selection. The number of slots in the frame is indicated more robust to noise. By carefully selecting these parame- in the Query message, and this controls the probability of ters, manufacturers can tune their systems to balance data tag collisions. It has been shown that the optimal frame rate against robustness and spectrum usage. size is when the number of slots is equal to the number of RFID readers do not generally allow users to set PHY tags [17], but estimating the number of tags in the popula- parameters independently. Instead, they provide a small set tion is non-trivial. of preconfigured options which are statically configured at While the Gen 2 specification gives an example algorithm deployment. The Impinj reader provides 5 "modes", with for selecting the frame size, there has been significant work the highest rate option using a 112 kbps downlink and a 640 targeted at improving this estimation [5, 10]. We set out kbps FM0 encoded uplink, and the lowest rate using a 27 to determine how the Impinj reader chooses frame sizes to kbps downlink and a 32 kbps Miller-8 encoded uplink. match the tag population. For this, we had the reader in- In our previous work [3], we showed how different PHY ventory a set of tags placed 2 meters away that varied from configurations impact MAC behavior and overall reader per- 1 to 64 tags. ACM SIGCOMM Computer Communication Review 46 Volume 40, Number 3, July 2010 plete Gen 2 RFID spectrum, and reader transmissions are 1 Tags Read per Slot decoded using software we developed using the GNU Radio 0.8 toolkit. By using a low-cost SDR platform and open-source software, we have built a system that is flexible and low cost, 0.6 but quite powerful for exploring Gen 2 systems. We evalu- ated the performance of our monitor and found that it was 0.4 99% accurate when placed within 3 meters of the reader. 0.2 This is sufficient for our target scenario of monitoring de- ployed Gen 2 systems in situ. 0 To demonstrate the usefulness of our monitor, we studied 1 2 4 8 16 32 64 a commercial RFID reader. We presented details showing Number of Tags how the Gen 2 protocol is realized in practice, and also indi- cated avenues for further research. Specifically, we feel that Figure 5: Distribution of tag reads per slot algorithms for PHY layer rate adaptation and cross-layer techniques that factor the capture effect into MAC behavior Immediately after powering up, the reader transmits a are rich areas for further exploration. Our system software Query that specifies only one slot. If no tags are present, has released as an open-source project, and is intended as a the reader power down for 2 milliseconds and tries again. foundation to be used by other researchers. The first Query is effectively just a check to see if any tags are present. If at least one tag is present, the next Query always specifies 16 slots. Beginning frames with no less than 6. REFERENCES [1] Agilent Technologies. 89600 VSA RFID modulation 16 slots was suggested in [18], though this is shown to be analysis. www.agilent.com/find/89600. less than ideal when more than 27 tags are present. [2] S. Aroor and D. Deavours. Evaluation of the state of We also found that the reader does not generally iterate passive UHF RFID: An experimental approach. In IEEE through all slots in the frame. If, for example, no tags reply Systems, 2007. [3] M. Buettner and D. Wetherall. An empirical study of UHF in the first five of the sixteen slots, the reader aborts the RFID performance. In MobiCom, 2008. frame, as the empty slots indicate that the frame size is too [4] EPCglobal. EPC radio-frequency identity protocols class-1 large. Estimating population size on a per slot basis, and generation-2 UHF RFID protocol for communications at aborting frames when necessary, has been shown to increase 860 MHz-960 MHz version 1.0.9. 2005. Gen 2 performance [5]. [5] C. Floerkemeier. Bayesian transmission strategy for framed Because tags randomly choose a slot in which to respond, ALOHA based RFID protocols. In IEEE RFID, 2007. some slots will be empty, some slots will have only a single [6] C. Floerkemeier and R. Pappu. Evaluation of RFIDSim - a tag response, and some slots will have multiple, colliding, physical and logical layer RFID simulation engine. In IEEE RFID, 2008. tag responses. When the number of slots in a frame matches [7] S. Hodges et al. Assessing and optimizing the range of UHF the number of transmitters (the ideal case), the ratio of slots RFID to enable real-world pervasive computing with a single transmitter approaches e−1 (≈ 0.37) [17]. Con- applications. In Pervasive Computing. Springer-Verlag, sequently, if the reader accurately selects the best frame size, 2007. we would expect to see an average of 0.37 tags read per slot. [8] Intermec Technology Inc. Using national instruments Figure 5 shows the distribution of the average number of software and hardware to develop and test RFID tags. tags read per slot for different sized tag populations. We cal- http://sine.ni.com/cs/app/doc/p/id/cs-10511. culated this by comparing the total number of slots in each [9] Y. Kawakita and J. Mitsugi. Anti-collision performance of gen2 air protocol in random error communication link. In round to the number of slots where an ACK was transmit- SAINTW, 2006. ted. We found that, in practice, the efficiency of the protocol [10] M. Kodialam and T. Nandagopal. Fast and reliable is much higher than e−1 . When reading 64 tags, the median estimation schemes in rfid systems. In MobiCom, 2006. number of tags read per slot is > 0.5. This is due to the [11] K. Koscher, A. Juels, V. Brajkovic, and T. Kohno. EPC capture effect, where a strong signal is decoded if it collides RFID tag security weaknesses and defenses: passport cards, with a weaker signal. enhanced drivers licenses, and beyond. In CCS, 2009. Our results shows that capture can be a significant com- [12] P. Nikitin and V. Rao. Performance limitations of passive ponent in MAC performance and should be taken into ac- UHF RFID systems. In IEEE Antennas and Propagation Symposium, 2006. count. However, the extent to which capture happens, and [13] RFID News. Portuguese book retailer rolls out item-level the extent to which this affects protocol performance, has rfid deployment. http://www.rfidnews.org. not been studied in depth. As a result, most frame size [14] RFID Update. Why metro's item-level rfid deployment selection algorithms seen in the literature do not explicitly matters. http://www.rfidupdate.com. model the impact of the capture effect. Additionally, the up- [15] L. G. Roberts. Aloha packet system with and without slots link physical layer configuration will impact the prevalence and capture. SIGCOMM Comput. Commun. Rev., 1975. of the capture effect, and consequently the efficiency of the [16] A. P. Sample et al. Design of an rfid-based battery-free MAC protocol. To the best of our knowledge, this type of programmable sensing platform. In IEEE Transactions on cross layer relationship has not been explored. Instrumentation and Measurement, 2008. [17] F. Schoute. Dynamic frame length aloha. IEEE Transaction on Communications, 1983. 5. SUMMARY [18] H. Vogt. Efficient object identification with passive RFID In this paper, we present a Gen 2 RFID monitoring plat- tags. Pervasive Computing, 2002. form that provides deep visibility into the operation of RFID [19] E. Welbourne et al. Longitudinal study of a building-scale RFID ecosystem. In MobiSys '09, 2009. systems. Our platform uses the USRP2 to capture the com- ACM SIGCOMM Computer Communication Review 47 Volume 40, Number 3, July 2010


text:
When im driving in between 1000 and 2000rpm,either accelerating or decellerating i hear a noise i can only describe as like a police siren in the distance,is this normal on a tdi or is there something wrong???
You haven't run over a motorbike plod on your journey into work have you? Check for blue flashing lights between the radiator and the bumper.
Might be a daft question but do i need to look at the small pipes aswell as the big ones from the turbo???
Ive checked all the pipes big and small and there is no leaks.The noise seems to be coming from the inlet manifold area???
there are a few small vag pipes under the inlet manifold and a green ball thing it maybe one of them or the inlet to head gasket


text: not all of them. i love sephora, but some of the stuff they have won't show up. I like to test eyeshadows on my hand first, truthfully i think if a eyeshadow is good it should show up on the skin the color it is in the case, without any base or at least close to it. I've come across pretty sheer colors at sephora. I love their lip-stains though. I was hoping that that maybeline lip-stain marker would be like the sephora lipstains, but they don't come close. And yeah i know what you mean about the eye-crease. i saw this one girl do a make-up tutorial with real beautiful make-up, but she caked so much of it on, that if she had a crease that was visible (she had a crease so close to her eyelashes you couldn't see it) then it would have looked terrible. I hate it when i see something like that and i say, damn, that's not going to look good on me.


text:
7.930.220 Megabytes of Gifs Created, 1.078.265 Gif Creators, 2.093.689 Gifs
Enter the Youtube URL from which you would like to create your gif. More video sites coming soon!
Posted by yesyesyes 398 views
Views: 398
Created By: yesyesyes | 4 year ago
Tags: lindsay, ellingson
Download Gif:
Small (170x96)
Medium (320x180)
Original size
Moms, students & others start working from home today!
by kaleldg71258 views
by CERDO73818 views
by nai1231359 views
by xxrainbowcookie1141 views
by kaiischatz797 views