stem


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stem

 [stem]
a stalklike supporting structure; see also peduncle.
brain stem brainstem.

stem

(stem),
A supporting structure similar to the stalk of a plant.

STEM

abbr.
science, technology, engineering, and mathematics

stem

(stĕm)
n.
A supporting structure resembling the stalk of a plant.

stem

(stĕm)
v. stemmed, stemming, stems
v.tr.
1. To stop or stanch (a flow): stemmed the bleeding.
2. To restrain or stop: wanted to stem the growth of government.
3. To plug or tamp (a blast hole, for example).
4. Sports To turn (a ski, usually the uphill ski) by moving the heel outward.
v.intr. Sports
To stem a ski or both skis, as in making a turn.

stem

A term of art used in clinical trials for a prompt, question or instruction in a patient-reported outcome item.

stem

(stem)
A supporting structure similar to the stalk of a plant.
Fig. 289 Stem. Transverse sections of herbaceous stems; (a) dicotyledon, (b) monocotyledon.click for a larger image
Fig. 289 Stem . Transverse sections of herbaceous stems; (a) dicotyledon, (b) monocotyledon.

stem

the part of the shoot of vascular plants from which are produced leaves at regular intervals (NODES) and reproductive structures. Stems are usually circular in cross section but some are square (for example, members of the family Labiatae, such as mint and lavender) while others are ribbed. The internal structure of stems can be herbaceous (non-woody) or show SECONDARY THICKENING. See Fig. 289 .

The forms adopted by stems are highly varied, ranging from the oak tree to climbing plants such as Clematis and the pea. Stems are sometimes used as underground storage organs as in RHIZOMES, CORMS, BULBS (underground shoots with food stored in fleshy leaves) and stem TUBERS, e.g. potato, while others, such as the strawberry RUNNER and suckers of mint, are adapted for VEGETATIVE PROPAGATION.

Patient discussion about stem

Q. my mother have stem replacement for a coronary artery oclusion is already 2 years she physically deteriorating since surgery why???? please help she does not have energy

A. I agree with Dagmar. It can be most likely caused by another occlusion or re-occlusion inside the heart blood vessels. Since that is a life-threatening case, I strongly suggest you to bring your mother into a hospital (for complete check up), or just call your cardiologist to have first treatment.

Meanwhile, that will be better if you have emergency oxygen (just in case you'll need it) with you.

More discussions about stem
References in periodicals archive ?
Having the STEM Bus visit our school was an exciting opportunity for our students, said Janalee Nielson, a teacher at Wellsville Elementary School.
'The support from company partners, such as Marathon Petroleum, increases the STEM Action Center's ability to reach more students and create innovative programs that help Utah students to dream big, and do big,' said Allison Spencer, director of the Utah STEM Foundation.
Directions of stem cell therapy, stem cell storage and preparation automation will be pointed out.
The results present a new opportunity for studying, in humans, how stem cells throughout the body change during aging and disease.
I found that when trying to remove a stem with a ratchet wrench, the stem spins in the wheel.
STEM education is built on the following foundational beliefs:
The stem cell niche typically has a spatial organisation that provides anatomical and functional interactions contributing to stem cell fate specification as well as maintenance of existing clones.
Renowned plant biologist Professor Liam Dolan of Oxford University observed that he does not see how plant stem cells could react with human cells.
The activated stem cells generate new blood cells of every type to counteract the blood loss or combat the pathogen.
Connecting with other PreK-12 STEM colleagues to show the role of technology and engineering education in STEM and Integrative STEM education.
The NRLC convention has been a welcome antidote to some of this anti-life rhetoric regarding stem cells, the different types of stem cells, the real results especially with respect to patient outcomes, and the ethical questions that should be asked regarding any stem cell research.