Programmed electrical stimulation provides the ability to determine conduction properties of the heart, and the possibility to induce and terminate cardiac arrhythmias using various pacing protocols. Using a transvenous catheter, intracardiac electrogram recordings can be obtained in mice following programmed electrical stimulation protocols to identify arrhythmogenic...

The Production Possibility Frontier (PPF) illustrates the maximum combination of two goods or services an economy can produce given its available resources and level of technology. It serves as a visual representation of the trade-offs between different production options.
The PPF assumes that resources are fixed and fully employed and technology remains constant. Any point on the curve represents a combination of goods that fully utilizes available resources.
Points inside the curve indicate...

The Edgeworth Box illustrates all possible ways to allocate a fixed amount of labor and capital between two firms—one producing wheat and the other producing cotton. Each point within the box represents a specific allocation of these inputs between the two firms. Among these points, the contract curve highlights all Pareto-efficient allocations, where no reallocation of labor or capital can increase one firm’s output without reducing the other’s. This condition defines Pareto efficiency,...

Refinement of porcine studies is achieved by introducing a standardized checklist and positive reinforcement training using a clicker. This work supports the collection of samples and the conduct of daily chores related to the animals.

Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.

Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...