Mod-01 Lec-11 Theories of Reaction Rate (Contd.)
Rate processes by Dr. M. Halder, Department of Chemistry and Biochemistry, IIT Kharagpur. For more details on NPTEL visit nptel.iitm.ac.in
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Mod-01 Lec-11 Theories of Reaction Rate (Contd.) - Video
Pharmacology of the GI Tract - Drugs that Inhibit Acid Reflux Aid Mucosal Protection
http://www.salmonellaplace.com This is a tutorial/lecture on the Pharmacology of the Gastrointestinal Tract - Drugs that Inhibit Acid Reflux Aid Mucosal Protection. We cover some topics important for classes such as Pharmacology, Biochemistry, etc. List of topics: - Neuronal control of the GI Tract; - Peptic ulcers; - Antacids; - H2R Antagonists; - Proton-pump inhibitors; - Atropine-like drugs; - Helicobacter pylori therapy; - Mucosal protective drugs. If you have any questions, don #39;t be shy!! We hope we are able to clarify this topic. Enjoy! Plus, don #39;t forget to SUBSCRIBE for more! Facebook: http://www.facebook.com/salmonellaplace Twitter: http://www.twitter.com/thesalmonella Tumblr: http://www.salmonellaplace.tumblr.com
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Pharmacology of the GI Tract - Drugs that Inhibit Acid Reflux
How to Pronounce Teichoic Acid
Learn how to say Teichoic Acid correctly with EmmaSaying #39;s "how do you pronounce" free tutorials. Definition of teichoic acid (oxford dictionary): noun [mass noun] Biochemistry a compound present in the walls of Gram-positive bacteria. It is a polymer of ribitol or glycerol phosphate. Origin: 1950s: teichoic from Greek teikhos #39;wall #39; + -ic http://www.emmasaying.com Take a look at my comparison tutorials here http://www.youtube.com Subscribe to my channel here : http://www.youtube.com
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How to Pronounce Teichoic Acid - Video
Junoon 2013 ( Performance By Our VC Sir )
JUNOON is the 1st annual cultural festival of Chhatrapati Shahu Ji Maharaj University, Kanpur of Institute of Bio-science and Biotechnology (IBSBT) department. JUNOON is an entirely new fest that as the name suggests "JAZBA KUCH KAR DIKHANE KA" the dimensions of conventional fests. Institute of Biosciences Biotechnology was established in the year 2001 to provide platform to the various emerging areas of research and to develop expert brains in the field of Micro-biology , Biotechnology , Environmental science Biochemistry. "The cadence of life touches the right note when it blossoms with all colors, brushing of all shades of human emotion and artistic flair plays an important role in all round development, and this cultural extravaganza provides opportunity to all students for the realization of this very purpose. The event is a perfect culmination of lights and sound, music and arts, dance and drama, thought and words; the perfect place to bring out the artist in everyone and to break the rut of daily life. With fresh and vibrant hues of joy adding beautiful colors every moment, the picture of life is painted with memories one cannot erase forever.." http://www.junoonibsbt.in http://www.facebook.com/junoonibsbt © Junoon" 2013
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Junoon 2013 ( Performance By Our VC Sir ) - Video
Newsic Nights 2/12 - Featuring the Hoochie Coochie Men
Newsic Nights kicks off the semester in Farinon #39;s Fireplace, Tuesday, February 12th @ 8PM, with some music that most certainly helps you find your sweet spot! Your very own, THE HOOCHIE COOCHIE MEN... The HCM are a Lafayette-based blues and folk band comprised of: vocalist and pianist Joey Tumulty (Ramsey, NJ), a Junior Physics major ; vocalist and guitarist Zach Gold (North Kingstown, RI), a Senior Biochemistry major; lead guitarist Alex Musso (Boca Raton, FL), a Senior Economics major; and drummer Brian Duke (Ridgefield, CT), a Freshman Mechanical Engineering major. The Laf-Lehigh Battle of the Bands champions have been together for two years and have played a variety of shows in the local area, including Lafayette #39;s annual Fall Fest and Jamnesty, as well local Easton restaurant Pearly Baker #39;s. For information on future shows, CDs, and more, visit their Facebook page: http://www.facebook.com
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Biochemistry - Biofest 2013
This is our video project for our Biofest presentation 2013! Our topic is Biochemistry 😀
By: Anika OPHS
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Biochemistry - Biofest 2013 - Video
Lorenzo #39;s Oil (1992) Official Trailer #1 - Susan Sarandon Movie HD
Subscribe to TRAILERS: bit.ly Subscribe to COMING SOON: bit.ly Like us on FACEBOOK: goo.gl Lorenzo #39;s Oil (1992) Official Trailer #1 - Susan Sarandon Movie HD A boy develops a disease so rare that nobody is working on a cure, so his father decides to learn all about it and tackle the problem himself. Cast: Nick Nolte: j.mp Susan Sarandon: j.mp Peter Ustinov: j.mp Gerry Bamman: j.mp James Rebhorn: j.mp Laura Linney: j.mp Director: George Miller Producer: Doug Mitchell: j.mp Lynn O #39;Hare George Miller: j.mp Arnold Burk Daphne Paris: j.mp Johnny Friedkin Writer: Nick Enright George Miller: j.mp Editor: Richard Francis-Bruce: j.mp Marcus D #39;Arcy: j.mp Cinematographer: John Seale: j.mp Composer: "Lorenzo #39;s Oil trailer" "Lorenzo #39;s Oil movie" "Lorenzo #39;s Oil 1992 trailer" "Lorenzo #39;s Oil HD" HD 1992 "Nick Nolte" "family drama" drama "sick child" "dying child" "no cure" zedison death life "Susan Sarandon" "Peter Ustinov" "Gerry Bamman" "James Rebhorn" movieclips movieclipstrailers movieclips movieclipsDOTcom movieclipscomingsoon biochemistry "birth defect" "brain cell transplant" despair "difficulty breathing" doctor "fatal illness" "father son relationship"
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Lorenzo's Oil (1992) Official Trailer #1 - Susan Sarandon Movie HD - Video
SANTA BARBARA, Calif., Feb. 21, 2013 /PRNewswire/ --Suneva Medical, Inc., a privately-held aesthetics company, today announced that it has expanded from its San Diego base to open an office in Santa Barbara. The Company has leased office space at 5383 Hollister Avenue to meet the rapidly growing needs of its team.
"Santa Barbara has been home to some important and successful aesthetics companies and has generated a tremendous pool of experienced local professionals. We have made several key hires in finance, marketing, clinical, and regulatory over the past few months and will continue to recruit from the great local talent pool as we grow our business," commented Nick Teti, Chairman and CEO of Suneva Medical.
This move follows several significant corporate developments for Suneva Medical in 2012. The company expanded its portfolio with the acquisitions of two best-in-class topical facial aesthetic products, ReFissa and ReGenica, while also completing critical milestones in its long-term 5-year and acne scar indication clinical trials for its dermal filler ArteFill.
ReFissa is the only .05% tretinoin cream available on the market with a broad FDA approval for treating facial fine lines and wrinkles, mottled hyperpigmentation and tactile roughness. It represents the gold standard in anti-aging tretinoins. ReFissa is formulated in a soothing emollient base specifically suited to hydrating mature skin.
ReGenica Skincare is the latest scientific breakthrough fusing the promise of stem cells with the power of growth factors. The ReGenica line of products was developed by Dr.Gail K. Naughton, a world-renowned scientist in regenerative medicine. ReGenica contains a highly potent composition of active growth factors and proteins developed through a revolutionary and patented method. The proprietary blend of ingredients in ReGenica have been clinically proven to help reduce the signs of aging and accelerate recovery times after laser treatments. Allure Magazine recently featured ReGenica in its December issue on "Totally Gorgeous Skin" and quoted renowned dermatologist, Dr. Doris Day, who stated "What we've been waiting for is a formula like this one with additional science to back it up. This line may help skin appear more youthful over time."
Suneva Medical also launched a multi-center study to investigate the efficacy of ArteFill, its lasting dermal filler, for the treatment of acne scars. Between two and five million people in the U.S. on an annual basis suffer from acne, with approximately 60%-70% of them going on to experience scarring. There is no product on the market today that is approved for treating this distressing and highly prevalent condition. Suneva worked with the FDA to create a novel classification system to evaluate acne scars and subsequently launched the study with 10 premier clinical investigational sites across the country. Recruitment and enrollment was quickly completed and all study subjects have now received treatment. Efficacy and safety data will be available later this year with plans to submit the PMA Supplement for the new indication by the end of 2013.
About Suneva Medical Suneva Medical, Inc. is a privately-held aesthetics company focused on developing, manufacturing and commercializing novel, differentiated products for the dermatology and the plastic and cosmetic surgery markets. The Company currently markets ArteFill, ReFissa and ReGenica in the U.S. and Bellafill in Canada. For more information visit http://www.sunevamedical.com.
Contact:Kellie Walsh (914) 315-6072 kwalsh@kwmcommunications.com
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Suneva Medical Expands its Operations to Santa Barbara
BOSTON, Feb. 20, 2013 /PRNewswire/ --Vantage Deluxe World Travel (www.vantagetravel.com) will officially launch the new river cruising vessel, ms River Splendor on March 14th at a grand inaugural event in Antwerp. Miss Belgium Noemie Happart will serve as the godmother of the ms River Splendor in a traditional naming ceremony in which the godmother breaks a "christening fluid" or bottle of champagne over the vessel, officially declaring it named, blessed and ready to sail.
(Photo: http://photos.prnewswire.com/prnh/20130220/NE63407 )
"Vantage has been building vessels in central Europe for 30 years and our friends in The Netherlands and Belgium have always been gracious and hospitable," says Vantage COO Kevin Wallace. "Our Waterways of Holland & Belgium trip continues to be one of the most popular in our portfolio and we could not be more excited to welcome Miss Belgium Noemie Happart as our godmother on March 14th to help us celebrate our fleet expansion."
Noemie Happart became Miss Belgium earlier this year. She is from Grace-Hollogne in the province of Liege. She will go on to represent Belgium at the Miss World and Miss Universe pageants later this year.
The celebratory christening along the port ofAntwerp, in Belgium will include live music, toasts and speeches from Vantage management followed by a three-course dinner aboard the new ms River Splendor for over 200 guests. The following day, the ms River Splendor will depart on a four-day inaugural voyage along the Rhine River to Amsterdam.
The new vessel is part of a $120 million fleet investment program, which will double Vantage's river cruising fleet by 2014. The new ship offers intimate cruising for no more than 176 passengers, single staterooms and single seating dining options as well as bigger staterooms with French balconies and wi-fi throughout the ship. This launch follows the successful inaugural season of the ms River Discovery II, which launched in March 2012. In addition to enhanced amenities, passengers can choose from new itineraries along the Rhine, Main, and Danube rivers, a new Grand River voyage in France, and revamped itineraries in Portugal and Russia.
Designed with the American traveler in mind, the 442 ft. ms River Splendor will offer luxury amenities and the best crew-to-passenger ratios in the industry, says Wallace. "Our extensive selection of river cruise itineraries is really changing the way travelers experience all corners of Europe."
About Vantage Deluxe World Travel- Celebrating its 30th Anniversary in 2013, Vantage Deluxe World Travel is a world-renowned tour operator known for delivering the best popular programs, and the company owns a fleet of luxurious river cruise ships that sail the Rhine, Danube, Main, Moselle, Saone and Rhone rivers in addition to exclusively chartering a number of others. Vantage's Memorable Journeys include upscale escorted tours to a variety of destinations in North and South America, Africa, Europe, the Mediterranean, Asia, and the South Pacific. Vantage Travel programs offer the industry's most comprehensive sightseeing journeys making guests feel like locals instead of tourists and turning a vacation into the trip of a lifetime. Vantage provides quality travel experiences and services that exceed the expectations of customers. For more information on current travel programs, please visit http://www.vantagetravel.com.
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Vantage Deluxe World Travel Secures Miss Belgium Noemie Happart to Christen New Ship as Godmother
Published: Wednesday, February 20, 2013, 9:01p.m. Updated 22 hours ago
People often come to Carole Obley with questions about their careers, relationships and finances.
She can offer them more than advice. Obley, 55, owner of SoulVisions LLC in Murrysville, is a trained medium who says she was born with the ability to channel souls of people who have passed on.
I can hear spirits in my mind, she said. I can feel their personality.
Obley will be featured as guest medium at the monthly Mystical Psychic Fair from noon to 5 p.m. Sunday at the West Mifflin No. 3 Fire Hall, 3722 Rodeo Drive. The event will include psychic readers, Reiki energy healing, massage therapy, spiritual response therapy and more. Cost is $5 at the door. Readings cost extra.
The first fair was held in January and attracted more than 60 people, organizers say.
Obley, who has been practicing her craft for two decades, will deliver messages from loved ones in small group circles of no more than 15 people from 1 to 2:15 p.m. She's the author of several books and has conducted more than 7,000 readings.
Spirituality is exceedingly important to me, as is compassion, she said.
Obley likens her ability to someone showing her a painting covered with a cloth, then revealing the artwork and asking for her first impressions.
I feel this gut reaction, she said. That's how it comes to me.
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Published: Feb. 19, 2013 at 4:07 PM
HOUSTON, Feb. 19 (UPI) -- NASA confirmed it lost direct contact with the International Space Station for about 3 hours Tuesday morning due to equipment failure.
Communication between the space agency and the ISS was lost at 9:45 a.m. EST as controllers at the Johnson Space Center in Houston were sending a software update to the space station, SPACE.com reported.
With the link to NASA's Mission Control center out, the orbiting laboratory's only communication channel to Earth was through Russian ground stations.
NASA said the software update was not a cause of the problem, rather a main data relay system on the ISS malfunctioned.
"Mission Control Houston was able to communicate with the crew as the space station flew over Russian ground stations before 11 a.m. EST and instructed the crew to connect a backup computer to begin the process of restoring communications," NASA officials explained.
However, despite switching to a backup the station was still unable to communicate with the satellite network that serves as the outpost's link to the control center in Houston.
Contact was finally re-established at 12:34 p.m. EST, NASA said.
During the outage Expedition 34 commander Kevin Ford, using the Russian ground stations, reported on the status of the station.
"Hey, just FYI, the station's still fine and straight, everybody is in good shape of course," Ford said in audio released by NASA. "And nothing unexpected other than lots of caution warning tones, and of course we have no system in sight. We'll get that back to you as soon as we can."
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HUNTSVILLE, Alabama - If there is a bright spot to the automatic spending cuts set go to into effect next week, it's that NASA doesn't appear to be in the crosshairs.
During a speech today at the Washington Update Luncheon at the Von Braun Center, Brooks spoke in encouraging terms when asked what impact the budget cuts, known as sequestration, would have on Marshall Space Flight Center.
Brooks began his answer by saying he had breakfast today with Huntsville Mayor Tommy Battle, who talked recently with Robert Lightfoot - the former director of Marshall who last year was promoted to associate administrator at NASA.
"I think Marshall, based on the information I'm getting from Mayor Battle and elsewhere, is going to survive sequestration a little bit better than most of the centers around the country," Brooks said. "Time will tell if that's the way it plays out."
It puts NASA in a somewhat unique position, given that the space agency has been a target in recent years of budget cuts and canceled programs.
The apparent sequestration reprieve, however, shouldn't be misunderstood as full Congressional endorsement, Brooks said.
"The short time I've been in Congress, I have noticed a disturbing trend that the budget for NASA is getting harder and harder to sustain it or even keep it from dropping too much," said Brooks, who began his second term in the House last month.
"That's a reflection again of the big picture of the deficit and debt and what's going to be cut and what's not going to be cut."
Brooks said he will continue to work with the Alabama delegation, particularly Sens. Richard Shelby and Jeff Sessions, to fight for NASA funding.
"I'm going to continue to work with Senators Sessions and Shelby to try to continue a program that has done such wonders for American exceptionalism, for advancement of American knowledge and advancement of technology with all the spin-offs that have helped the economy," Brooks said.
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Marshall Space Flight Center may feel minimal hit from sequestration, Rep. Mo Brooks said
WASHINGTON -- NASA Administrator Charles Bolden will see some of the cutting-edge techniques being used to create parts for the engines of the Space Launch System (SLS) during a visit to the agency's Marshall Space Flight Center in Huntsville, Ala., on Friday, Feb. 22. SLS is America's next-generation heavy-lift launch vehicle -- the most powerful rocket ever built.
Bolden will tour the National Center for Advanced Manufacturing Rapid Prototyping Facility in Building 4707 at Marshall at 12:30 p.m. CST (1:30 p.m. EST). He will join John Vickers, manager of NASA's National Center for Advanced Manufacturing, and others for a look at the equipment used in selective laser melting, which is similar to 3-D printing. Laser melting is enabling the production of complex, strong metal parts without welding, while reducing manufacturing time and costs.
News media interested in attending the tour should contact Jennifer Stanfield in Marshall's Public and Employee Communications Office at 256-544-0034 no later than 4 p.m., Thursday, Feb. 21.
Journalists must report to the Redstone Arsenal Joint Visitor Control Center at Gate 9, Interstate 565 interchange at Rideout Road/Research Park Boulevard, no later than noon Friday. Vehicles are subject to a security search at the gate. News media representatives will need two photo identifications and proof of car insurance.
For more information about NASA's Space Launch System, visit: http://www.nasa.gov/sls
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NASA Administrator Tours Marshall Space Flight Center Advanced Manufacturing Facility
Planetary Society Hangout, Feb 21st, 2013 - Sequestration at NASA with Jon Morse
How will the sequester effect NASA #39;s programs and goals? How does the budgeting process normally work? How normal (or abnormal) a situation is this for planning budgets and reaching goals at the US Space Program? We answer all of these questions with Dr. Jon Morse, Professor of Physics at RPI and previous Director of Astrophysics at NASA headquarters in Washington, DC
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Planetary Society Hangout, Feb 21st, 2013 - Sequestration at NASA with Jon Morse - Video
asdfgfa - NASA
The official music video for "NASA" by asdfgfa. Go to http://www.asdfgfa.com for download more info! asdfgfa is Christopher Bowes. Guest guitar solo by Salad Cubes Ben.
By: Christopher Bowes
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PASADENA, Calif. - A NASA project that allows students to use a camera on a spacecraft orbiting Mars for research has received a new education prize from the journal Science.
NASA's Mars Student Imaging Project (MSIP), a component of NASA's Science Mission Directorate education and outreach activities, enables students from fifth grade through college to take an image of the Red Planet's surface with a camera aboard NASA's Mars Odyssey. Students study the image to answer their research questions. After the image comes back to Earth, the students are some of the first people to see the picture and make their own discoveries.
Established in 2012, the journal's Science Prize for Inquiry-Based Instruction encourages innovation and excellence in education by recognizing outstanding, inquiry-based science and design-based engineering education modules. A panel of scientists and teachers selected MSIP as one of 12 education projects from fields such as biology, chemistry, physics and Earth sciences.
Designed to fit within existing science curricula, MSIP targets required science, technology, engineering and mathematics (STEM) objectives and standards for easy integration into classrooms. Authentic research is at the core of the award-winning project.
"At a time when the U.S. critically needs to develop the next generation of scientists and engineers, such student-led discoveries speak to the power of engaging students in authentic research in their classrooms today," said Jim Green, director of the Planetary Science Division of NASA's Science Mission Directorate in Washington. "Not only is the chance to explore Mars motivating, it shows students they are fully capable of entering challenging and exciting STEM fields."
Since MSIP began in 2002, more than 35,000 students across America have participated from public, private, urban, suburban and rural schools of all sizes, grade levels and student abilities. In 2010, a seventh-grade MSIP class in rural California discovered a previously unknown cave on Mars. A student presented their results at a major planetary science conference.
"The Mars Student Imaging Project is a perfect example of how NASA can use its missions and programs to inspire the next generation of explorers," said Leland Melvin, NASA associate administrator for education in Washington. "If we want our students to become tomorrow's scientists and engineers, we need to give them opportunities to do real-world -- or in this case, out-of-this-world -- scientific research, using all of the tools of 21st century learning."
MISP is a key component of NASA's Mars Public Engagement Program. The Mars Education Program at Arizona State University in Tempe, under the direction of Sheri Klug Boonstra, leads MSIP. Philip Christensen, principal investigator for the Thermal Emission Imaging System (THEMIS) visible and infrared camera aboard Odyssey, is MSIP's mentor.
Orbiting Mars since 2001, Odyssey has operated longer than any spacecraft ever sent to Mars. The mission's longevity enables continued science from instruments on the orbiter, including the monitoring of seasonal changes on Mars from year to year. Odyssey also functions as a communication-relay service for NASA's Mars rovers.
NASA's Jet Propulsion Laboratory in Pasadena, Calif., manages the Mars Public Engagement Program and the Odyssey mission for the Science Mission Directorate in Washington. Lockheed Martin Space Systems in Denver built the orbiter. JPL and Lockheed Martin collaborate on operating the spacecraft. JPL is a division of the California Institute of Technology, Pasadena.
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CAPE CANAVERAL, Florida (Reuters) - NASA's Mars rover Curiosity, dispatched to learn if the planet ever had ingredients for life, drilled its first bit of powder from inside a potentially water-formed ancient rock, scientists said on Wednesday.
The robotic geology station, which landed inside a giant impact basin on August 6 for a two-year mission, transferred about a tablespoon of rock powder from its drill into a scoop, pictures relayed by the rover Wednesday showed.
"We're all very happy to get this confirmation and relieved that the drilling was a complete success," Curiosity engineer Scott McCloskey of NASA's Jet Propulsion Laboratory in Pasadena, California, told reporters on a conference call.
On February 8, the rover used its powerful drill, the first instrument of its type to be sent to Mars, to bore inside a flat, veined piece of bedrock, which appears to contain minerals formed by flowing water.
The sample, retrieved from at least 2 inches beneath the surface of the rock, will be sieved and portions of it processed inside two onboard science instruments.
The gray powder is strikingly different than the ubiquitous red dust that covers the planet's surface, a result of oxidation from solar ultraviolet radiation.
"Having a rock-drilling capability on a rover is a significant advancement," said Louise Jandura, chief engineer for Curiosity's sample system.
"It allows us to go beyond the surface layer of the rock, unlocking a kind of time capsule of evidence about the state of Mars going back 3 or 4 billion years," Jandura told reporters.
The drill is the last of Curiosity's 10 science instruments to be tested since the rover landed inside Gale Crater, located near the planet's equator.
The site was selected because of a three-mile (5-km) high mound of what appears to be layered sediments rising from the crater's floor.
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Landsat 5 has secured a new world record title for being the longest-operating Earth observation satellite after almost three decades in orbit.
Guinness World Records sent an email confirmation to NASA's Goddard Space Flight Center in Greenbelt, Md., informing space agency officials of the honor, NASA officials said in a statement.
Landsat 5,which will be retiredin the next few months, launched on March 1, 1984 and has long outlived its initial three-year mission. The satellite has circled Earth more than 150,000 times during its nearly 29 years in space, and has snapped more than 2.5 million images of the planet's surface along the way.
The Landsat 5 satellite is equipped with two main instruments for Earth observation: a multispectral scanner system and a thematic mapper. Similar tools were flown aboard its predecessor, Landsat 4. NASA announced the retirement of Landsat 5 in late December after the spacecraft suffered a failure in a spare gyroscopes. The satellite has three gyroscopes to maintain its position in orbit, but requires two working units to work properly, NASA officials said. [Earth From Space: Landsat Satellite Photo Legacy]
"This is the end of an era for a remarkable satellite, and the fact that it flew for almost three decades is a testament to the NASA engineers who launched it and the USGS team who kept it flying well beyond its expected lifetime," Anne Castle, Department of the Interior Assistant Secretary for Water and Science, said in a statement.
Last year marked the 40th anniversary of the entire Landsat program, a collaboration by NASA and the U.S. Geological Survey, which has helped scientists document the changing face of our planet and humans' impact on it, from ice loss to natural disasters to urban expansion. To date, NASA has launched eight Landsat satellites under the program, which is a joint effort with the U.S. Geological Survey.
Landsat 7, which launched in 1999, has also outlived its three-year design and remains operational. The program's eighth satellite, theLandsat Data Continuity Mission (LDCM), just launched on Feb. 11 from Vandenberg Air Force Base in California. It rode a United Launch Alliance Atlas 5 rocket into orbit without any hitches.
Throughout its 29-year history in space, Landsat 5 faced its share of challenges, including battery and star tracker failures, as well as the loss of on-board data recording, NASA officials said. The satellite's flight control team found solutions to those issues, they added.
"The efforts of the Landsat team were heroic. Landsat 5 could not have lasted so long without the dedication and devotion of the USGS flight operations team that overcame a number of difficult technical challenges over the last 12 years," Jim Irons, LDCM project scientist, said in a statement from NASA on Feb. 10.
"Landsat 5 saved the Landsat program," Irons added. "This satellite's longevity preserved the Landsat program through the loss of Landsat 6 in 1993, preventing the specter of a data gap before the launch of Landsat 7 in 1999."
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