biological


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biological clock is ticking

Of a woman, there is a limited amount of time in which to be able to conceive a child. I've been very successful in my career and want to see it to its fullest, but I would also love to have kids, and I know my biological clock is ticking. For women who may want to have children, their biological clocks are always ticking—a concern that men never have to worry about.

clock is ticking, the

The time (for something to be done) is passing quickly; hurry up. For example, The clock is ticking on that project. This allusion to a stopwatch is often used as an admonition to speed something up. It also is used in more specific form- one's biological clock is ticking-meaning that a woman may soon be too old to bear a child, as in Her biological clock is ticking-she just turned forty.
See also: clock
References in periodicals archive ?
His research focuses on transcriptional and posttranscriptional control of gene expression, the genomic basis of environmental disease, and the inference of biological regulatory networks.
His account of biological attack is plausible, consistent with the technology of the time, and it provides the best explanation of disease transmission into besieged Caffa.
While the vast majority of the BWC's parties have conscientiously met their commitments, the United States is extremely concerned that several states are conducting offensive biological weapons programs while publicly avowing compliance with the agreement.
To determine how commonly trace exposures trigger unanticipated biological, impacts, Calabrese's team has analyzed databases of biological responses to potentially toxic chemicals, each throughout a broad range of doses.
Because of the nearly complete historical review that Biological Weapons provides, it is a highly recommended book.
To facilitate progress in environmental genomics, we need to train young investigators in the discipline and support scientific programs that focus on biological and clinical problems that can most directly be solved by employing these novel conceptual and methodological approaches.
The team has completed one of three biological trials, and is in the third of four chemical trials.
Certain brain chemicals, called neurotransmitters, play an important role in regulating moods and emotions, providing further evidence of a biological etiology for Major Depressive Disorder.
The device can simultaneously identify up to 10 different biological warfare agents in a given sample, including smallpox, anthrax, plague, and encephalitis.
Despite this history, biological agents have not been instruments of choice for terrorism as explosives and guns account for more than 99% of all weapons used by terrorists (Global Center for Traumatology, 2003).
The appendices on chemical and biological agents offer concise, formatted summaries similar to those available through other resources, but ironically provide relatively little information about the agents' potential as weapons.
If Peru is rich in anything it is our biological and cultural diversity.
Many items needed to establish a laboratory for making biological warfare agents were being sold on the Internet to the public from DOD's excess property inventory for pennies on the dollar, making them both easy and economical to obtain.
Although all aerobes will not grow on any one specific growth medium, the trending of these numbers will indicate whether there is a difference in biological activity.