by lateral inhibition via Notch/Delta signalling has been 3 extensively studied. Most formalised models consider Notch/Delta interactions 4 in fields of cells, with parameters that typically lead to symmetry breaking of 5 signalling states between neighbouring cells, commonly resulting in salt-and- 6 pepper fate patterns. Here we consider the case of signalling between 7 isolated cell pairs, and find that the bifurcation properties of a standard 8 mathematical model of lateral inhibition can lead to
Introduction Reproductive health play a vital role in the daily lives of humans. Specifically for males, options for contraceptives remain fairly limited due to the market’s focus on the protection of women more often than men. As technology continues to advance, scientists and the general human population begin to look for more options to provide protection to men engaging in sexual intercourse. Barrier methods such as the condom, the vasectomy, and newly introduced Vasalgel make up the available
Name: Diana Monyancha Date: 10/02/15 BIOL 1441-014 Lab Instructor: Audra Andrew Lab Partners: Sydney Censullo Monica Mendoza Saul Longoria Inhibition of Direct Light affects Elodea’s CO2 production during Photosynthesis. Abstract Plants rely upon photosynthesis to acquire their energy and make food. To determine exactly how important light energy is in the process of photosynthesis, we decided to conduct an experiment in which an Elodea plant was exposed to different light intensities. One Elodea
Inhibition of Direct Light affects Elodea’s CO2 production during Photosynthesis Diana Monyancha Sydney Censullo, Monica Mendoza, Saul Longoria Biology 1441 Section 014; Audra Andrew; October 02, 2015 Elodea Canadensis, also referred to as American waterweed or common elodea, is an aquatic plant that is usually found in lakes, ponds or even rivers. Elodea helps support aquatic life such as young fish and amphibians by providing shelter and can be consumed as food by ducks and beavers. Elodea, like
Learning about Inhibition of Access and tools to becoming a Better Physician for Dr. Danielle Ofri The United States is an incredibly diverse country. This diversity possesses significant strain particularly on the healthcare system. According to the Agency for Healthcare Research and Quality access to healthcare is defined as “the timely use of personal health services to achieve the best health outcomes” (Chapter 9 Access). Therefore, access of healthcare begins once an individual enters the system
The effect of food source (mung bean Vigna radiata vs. black-eyed pea Vigna unguiculata) on relative inhibition of acetylcholinerase due to malaoxon in bean beetle Callosobruchus maculatus Background and Hypotheses: Recent studies, most notably Gbaye et al. (2011, 2012), have investigated the sensitivity of bean beetles in the genus Callosobruchus to organophosphate insecticides (OPs). Economically this is important work given that these beetles are pests that threaten agricultural yields
the cone rich fovea; with little lateral inhibition and high concentration of
Contact inhibition is a mechanism observed where cell proliferation stops when two cells come in contact with one another. This process is caused by elevated levels of p27 cyclin-dependent kinase inhibitor which stops cells in the G1 phase from dividing. The cylcin-dependent kinase inhibitor p16 is also thought to regulate contact inhibition but its levels do not change in mice or human samples. Tumor-suppressor genes Rb and p53 are present in high concentration during contact inhibition to help
bacteria exposed to this solution would decrease. We expected to see no difference in the amount of bacteria exposed to the black tea solution. Tannic acid, black tea, boiled water, and a tetracycline antibiotic were tested for their zones of inhibition in order
sucrose. With this in mind, the results obtained from the experiment showed that stevia does indeed inhibit the activity of α-amylase most effectively compared to sucrose and sucralose. This can be explained by the small range of % inhibition values, ranging from 10-20 % inhibition. This can be observed in Figure 1 where one can notice that the standard error bars are