Duke University physicists have developed a way to produce sharp fluid jets with enough precision that they can inject material into a single, living cell. The technique promises a way to deliver drugs to cells one at a time, which is likely to be very valuable for research involving stem cells [...]
DNA microarrays are one of the most powerful tools in molecular biology today. The devices, which can be used to probe biological samples and detect particular genes or genetic sequences, are employed in everything from forensic analysis to disease detection to drug development.
Now Paul Li and colleagues at Simon Fraser University in [...]
With global warming and climate change making headlines nearly every day, it could be reassuring to know that some creatures might cope by gradually moving to new areas as their current ones become less hospitable. Nevertheless, natural relocation of species is not something that can be taken for granted, according to [...]
No healthy teeth without this gene: if during tooth formation (odontogenesis) the so-called Jagged2 gene is inactivated, and hence the Notch signalling pathway interrupted, tooth crowns will be malformed and enamel will be lacking. As this signalling pathway is involved in the formation of all tissues and organs, the new insights [...]
A new process that simultaneously combines the light and heat of solar radiation to generate electricity could offer more than double the efficiency of existing solar cell technology, say the Stanford engineers who discovered it and proved that it works. The process, called “photon enhanced thermionic emission,” or PETE, could reduce [...]
A new study co-authored by professor Kam Tang of the Virginia Institute of Marine Science reveals that tiny aquatic organisms known as “water fleas” play an important role in carrying hitchhiking bacteria to otherwise inaccessible lake and ocean habitats.
The article, “Bacteria dispersal by hitchhiking on zooplankton,” appeared in the June 29 issue [...]
In one of the first efforts of its kind, UCLA researchers have taken mammalian genome maps, including human maps, one step further by showing not just the order in which genes fall in the genome but which genes actually interact.
The findings, published in the August issue of the journal Genome Research, will [...]
Please respond to three of the five blogs:
1. Explain why you should not wear baggy cloths or dangling earrings in the lab.
2. Name three types of lab equipment that you learned about this week.
3. List three science safety rules learned in class this week.
4. What do you know about chemical safety?
5. Why is it important to [...]
Please answer all five of the following questions for laboratory safety.
1. Describe how you would pick up a piece of hot glass in the lab.
2. How would you hold a test tube containing a chemical?
3. When would you report an injury, glass break, or chemical spill?
4. Name a piece of equipment that is a [...]
Directions: Define the following terms in your own words. Also, write a complete sentence for each word.
Erlenmeyer Flask, Test tube, Graduated cylinder, Bunsen Burner, Triple Beam Balance
