beta的意思|beta的解释-里氏词典

beta ['betə]

n. 希腊字母表的第二个字母

[医] β(希腊文的第二个字母), 乙种

A beta ray.
β射线
What is a beta exam?
什么是测试版的考试？
When will the beta start?
－测试什么时候开始？

beta

[ noun ]

the 2nd letter of the Greek alphabet

<noun.communication>

beets

<noun.plant>

[ adj ]

second in order of importance

<adj.all>

the candidate, considered a beta male, was perceived to be unable to lead his party to victory

preliminary or testing stage of a software or hardware product

<adj.all>

a beta version

beta software

Beta \Be"ta\, n. [Gr. bh^ta.]
The second letter of the Greek alphabet, B, [beta]. See {B},
and cf. etymology of {Alphabet}.

Note: Beta (B, [beta]) is used variously for classifying, as:
(a) (Astron.) To designate some bright star, usually the
second brightest, of a constellation, as, [beta]
Aurig[ae].
(b) (Chem.) To distinguish one of two or more isomers; also,
to indicate the position of substituting atoms or groups
in certain compounds; as, [beta]-naphthol. With acids, it
commonly indicates that the substituent is in union with
the carbon atom next to that to which the carboxyl group
is attached.
[Webster 1913 Suppl.]

In a study at the Jefferson Medical College in Philadelphia, a group of laboratory rats induced to have heart attacks suffered 50 percent less cell damage after injections of transforming growth factor beta than did rats that did not receive the TGF beta.
In a study at the Jefferson Medical College in Philadelphia, a group of laboratory rats induced to have heart attacks suffered 50 percent less cell damage after injections of transforming growth factor beta than did rats that did not receive the TGF beta.
If the broad stock indexes move 10% in either direction, a stock with a beta of 1.5 would theoretically move 15%.
After five years of follow-up, 362 people who took beta carotene and 340 in the comparison group had at least one new skin cancer.
Doctors expect them to repeat the findings first publicised last year. The CSM report says 'the evidence does not suggest that the use of beta agonists is associated with asthma mortality'.
All of the patients had been taking beta blockers: propranolol hydrochloride, marketed generically and as Inderal; nadolol, marketed as Corgard and Corzide; metoprolol tartrate, marketed as Lopressor; and atenolol, marketed as Tenoretic and Tenormin.
The eleven had taken beta blockers for an average of 2.9 years, they said.
It emits beta and gamma radiation, both of which can produce a variety of ill effects, depending on the dosage.
Nitrates have been used for more than 50 years, and beta blockers were developed in the 1960s.
According to the Danish study, Verapamil is about as effective as another variety of blood pressure medicines known as beta blockers at protecting people after heart attacks.
The plastic capsule would permit beta cells from cattle or pigs to be used but it would require several animals to supply enough beta cells for one person.
The plastic capsule would permit beta cells from cattle or pigs to be used but it would require several animals to supply enough beta cells for one person.
One commonly used gauge of volatility is a measurement called beta.
Sales of both Plendil, an anti-hypertensive agent, and Seloken, a beta blocker, have also proved satisfactory. Astra hopes to see substantial future growth in the all-important Japanese and US markets for its core products.
Foods with beta carotene are easy to spot because of a characteristic carroty color _ cantaloupe, carrots, sweet potatoes, winter squash and apricots.
But what causes beta amyloid deposits to form? Researchers previously have shed light on that question in studies on the so-called amyloid precursor protein, or APP. Formed normally in brain cells, APP contains beta amyloid as a subsection.
But what causes beta amyloid deposits to form? Researchers previously have shed light on that question in studies on the so-called amyloid precursor protein, or APP. Formed normally in brain cells, APP contains beta amyloid as a subsection.
The trust will track its own Smaller Companies Index which has a beta of one, making it no more volatile than the market as a whole.
Biogen, whose shares fell after the trials results were published, faces some tough questioning if it claims superiority over Betaseron. The patents covering beta interferon also seem set to be fought over.
Visconti describes the beta state as "chatter, chatter, chatter because of outside stimulation."
Black helped develop propranolol, a beta blocker used to treat heart disease and high blood pressure.
But by giving hypertensive patients with abnormal blood fat levels diuretics and beta blockers, doctors may be further knocking the proportion among the three blood fats out of line and contributing to the risk of heart attack, the researcher said.
High blood pressure patients taking medications known as beta blockers temporarily increase their risk of suffering heart pain or heart attack if they abruptly stop taking the medication, a study says.
Insulin is secreted by the beta cells of the pancreas.
Dilevalol is classified as a beta blocker, which helps control blood pressure by blocking nerve impulses that regulate the heart beat.
"I wished I had my beta blockers handy," Black, 64, quipped at a news conference at King's College after he learned he won.
Though TGF beta is produced naturally in the body, Lefer said his research team used a substance produced artificially by Genentech, a California biotechnology firm.
It is a world leader in the cardiovascular and cancer drug markets, and its Tenormin beta blocker cardiovascular drug accounts for around 40% of its total pharmaceuticals sales.
Since this spring, several labs have identified natural enzymes that snip damaging shards of the beta amyloid from a larger "precursor" protein normally produced by cells throughout the body.
Selwyn said it may be possible to control these activities' effects on the heart with drugs such as beta blockers that fight ischemia.

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