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The perennating organs of the Potato (Solanum tuberosum) are underground tubers, which are swollen stems acting as food stores. Originally from the lower Andes in South America, this plant has been exploited in Europe as a food source since the 15th Century, owing to the high starch content and good keeping qualities of the tubers.
This image shows part of a plant dug up to expose underground stems with swollen tips – the immature tubers. Part of the main root system of the plant can also be seen.
The largest tuber is approximately 2 cm across.
Image by John Bebbington FRPS
U.S. Secretary of Education Betsy DeVos delivers remarks during the Celebrating Women’s History Month – Getting Excited About STEM event at the Smithsonian's National Air and Space Museum, Tuesday, March 28, 2017 in Washington, DC. Photo Credit: (NASA/Joel Kowsky)
MTA New York City Transit President Richard Davey and Senior Vice President of Subways Demetrius Crichlow surprise 7th grade students Alan, Chris, Criss, and Sinthia with a visit to Liberty Avenue Middle School on Thursday, Jan 12, 2023. The students, under the guidance of teacher Jessica Abrams, are state finalists in the Samsung Solve for Tomorrow STEM competition with their design of a push-button method for summoning police or mental health assistance in the subway.
Ramez Farag, Rashleigh Tudor (NYCT.)
(Marc A. Hermann / MTA)
Frame :*MASH* STEEL
Handlebar :*HUNTER* low rise bar
Stem:*ZIPP* service course
Head Set :*CHRIS KING* nothreadset 1 1/8 inch
Wheels :*SUZUE* pro max × *VELOCITY* a23 rim
Tire :*CONTINENTAL* gatorskin tire
Crankset :*SRAM* omnium crankset
Cog :*EURO ASIA*delux steel track cog
Chain :*KMC* z510hx
Brake :*TRP* CX8.4 mini V brake
Brake Lever :*TRP* spyke brake lever
Seat Post :*ZIPP* service course
Grip :*BL SELECT* schwinn sting grip
Pedal :*BLUE LUG* SHARK pedal
Rack:*MASH* front rack
STEM Career Day at Sacred Heart Universityâs Center for Healthcare Education. Students from Girl Scouts of CT, Upward Bound and the Academic Mentoring Program participated in the event. Photo by Mark F. Conrad 4/14/18
The School of the Sciences is hosting their annual Expanding Your Horizons event, which encourages middle school girls from all across MD (including Baltimore City schools) to pursue STEM careers.
Ursuline celebrated STEM Day on Wednesday, March 24. Hands-on experiments taught students about science, technology, engineering, and math in creative ways.
Replaced my M-stem with a H-stem, Aberhallo stem adapter and straight handle bars (58 cm)
It is about 2cm lower now. Brake/shifter cables are not modified.
AIO Premium Cellular Health (AIO) is a product developed by Ceres Living, Inc. in conjunction with a leading nutritional laboratory and NeoStem, a leading adult stem cell collection and research company.
AIO was developed from the studies that state certain Nutraceuticals optimize stem cell functions. In the nutrition industry, much has been focused on fighting oxidative stress with little efforts towards cell repair, once oxidative stress has been fought.
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Now with AC-11, DNA Supplement
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AIO harnesses the power of nature in its purest form and the breakthroughs in scientific discovery. AIO helps to nourish the healing and restorative nature of our bodies. AIO can help to protect the cardiovascular system, support immune functions and optimize adult stem cell functions. Plus, it's fast acting and great tasting!
AIO is abundantly filled with super fruits like Acai, Pomegranate, Blueberry Acerola, Amla, Camu Camu and Dark Cherry. Each ounce provides 13,830 mg of whole fruit. This delicious, all natural fruit puree is rich in potent antioxidants, which scientific studies suggest fight free radicals and prevent oxidative stress, thereby providing healthy immune system defense support. AIO has been specially formulated to increase bioavailability so that it is easy for your body to assimilate.
AIO is also filled with anti-aging and cellular breakthroughs like Resveratrol, along with Vitamin D3 and Niacin amongst others. This proprietary blend of anti-aging breakthroughs is designed and believed to optimize stem cell functions.
Some benefits believed to stem from AIO:
Provide Essential Nutrients*
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Stem ginger cupcake packed with pieces of stem ginger, with ginger cream cheese frosting and little chunks of crystallised stem ginger.
The added syrup from the stem ginger made these cupcakes oh so moist, one really wasn't enough!
And my other half (not usually a fan of ginger) claimed this to be his fave too... definitely a keeper!!!
cross section: Nymphaea stem
common name: Water Lily
magnification: 100x
Berkshire Community College Bioscience Image Library
The outer cortex consists of a narrow zone of 5 – 6 layers of parenchyma cells. The bulk of the cortex is occupied by network of thin walled aerenchyma cells. Chloroplasts may form throughout the cortex in stems exposed to sufficient light. The numerous air spaces of the aerenchymatous cortex store respiratory gases and provide bouncy. The only mechanical support within the cortex is provided by branched or stellate sclereids.
There is no well-defined stele, rather several smaller poly steles composed of two or more confluent vascular bundles loosely linked in a ring in the mid cortex. Single vascular bundles are distributed to the inside and outside of the zone of polysteles. All vascular bundles are closed and collateral with proto xylem in polysteles facing towards each other, followed by zones of metaxylem, and most externally, caps of phloem. A well-defined starch containing endodermis with casparian strip is evident in the poly stele systems.
Vascular tissues are often poorly differentiated into xylem and phloem. Xylem is entirely composed of spiral and annular tracheids of unusual length. In many vascular bundles a xylem lacuna can be seen. Phloem bundles are primarily phloem parenchyma and sieve tubes.
Technical Questions:bioimagesoer@gmail.com
Fern stem and leaf. I remember ferns being interesting in biology because they were unlike most plants.
Nilay Patel,associate professor of biological science, leads CSUF's Bridges to Stem Cell Research Program. biology.fullerton.edu/stemcells/
The Office of Professional and Career Development hosted their annual STEM Slam for students to network with employers and explore STEM careers Tuesday, February 4, 2020 at Wake Downtown in Winston Salem, NC.
Science, Technology, Engineering and Math Building opening in January 2014 at the Mays Landing Campus.
Late Friday night, 40 high school girls arrived at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, for a STEM-themed sleepover, ready to learn about careers in Science, technology, engineering and math. The educational event offered young women a chance to meet working female scientists and to discover opportunities for women in STEM-related professions.
The teens kicked off the third annual STEM Girls Night In with an astronaut Q&A, talks from female scientists across disciplines and a collection of hands-on activities. The night culminated in a three-hour Mars rover competition and concluded with a late-night showing of “Hidden Figures.”
Credit: NASA/Goddard/Jessica Koynock
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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The School of the Sciences is hosting their annual Expanding Your Horizons event, which encourages middle school girls from all across MD (including Baltimore City schools) to pursue STEM careers.
In a young dicot stem, such as this buttercup, the conducting tissue is contained within separate vascular bundles, forming a peripheral ring around the stem. In the centre of each bundle, the large lignified red cells are xylem vessels, responsible for the transport of water and mineral ions throughout the plant. Surrounding the vascular bundle is a cap of sclerenchyma, also stained red. This tissue also consists of lignified cells, but its function is solely one of support and not transport. Between the outer sclerenchyma and the xylem is a region containing the phloem, which transports sugars and other products of photosynthesis from the leaves to other parts of the plant.
The rest of this section mainly consists of large thin-walled parenchyma cells. These cells support the stem by their turgidity. In older stems the support role is achieved by growth of new tissues, in a process called secondary thickening.
The long axis diameter of a vascular bundle is about 320 µm.
Image by John Bebbington FRPS
Marcie Maxwell, Senior Education Policy Advisor for the Governor joined Patirck D'Amelio from Washington STEM, Aimee Kennedy from Battelle and Yolanda Watson Spiva from College Success Foundation.
Photo by Kariba Photography/Courtesy of Washington STEM
Teachers participate in the Rocketry Engineering Design Challenge during the 2017 GE Foundation High School STEM Integration Conference at the Center for Space Education at NASA's Kennedy Space Center. High school teachers from across the country took part in the week-long conference, which is designed to explore effective ways for teachers, schools and districts from across the country to integrate STEM throughout the curriculum. The conference is a partnership between GE Foundation and the National Science Teachers Association. Photo credit: NASA/Chris Chamberland