Heat transfer

Immunoprecipitation and Sequencing (ChIP-seq) of Heat Shock Factor (HSF) Temporal Binding Sites during the Critical Period of 8-12 Hr After Egg Lay (AEL) in Drosophila melanogaster Embryogenesis Background Heat Shock Response was discovered by the Italian scientist Ferrucio Ritossa, when he saw puffs in the Drosophila polytene chromosome on inducing them with heat. It was later discovered that this Heat Shock Response was regulated by a transcription factor called Heat Shock Factor (HSF). The…

Overall, these properties allow it to: provide habitats for animals; transport substances around organisms; regulate and participate in cell reactions and help animals maintain a constant blood temperature. Water’s small size is important for plants as it is able to diffuse by osmosis into plant cells which creates turgor as the vacuole swells pressing against the cell wall. This pressure helps plants stand up straight and not wilt causing death As water is lost by transpiration from the…

Urban trees provide a wide range of environmental, ecological, social, cultural and economic benefits. However, as natural objects, they are constantly under stress, and living in an unnatural habitat, which will primarily affect the tree crown. In this study, the Diameter at Breast Height (DBH), Crown Live Ratio (LCR), Crown Dieback (CDBK), Crown Transparency (CT), and Crown Chlorosis (CC) of trees at University of Toronto – St. George campus were assessed by field measurements and Google…

The Heat Island Effect harms people in ways that have to be understood in order to make a change. In urban areas, the temperature can be from “1-12 C”(Allen, Kate) depending on how extreme the case is. Cities are much warmer than normal, and will affect people’s…

Heat of Combustion of Magnesium Hypothesis: Hess’s law states that “the enthalpy change for the conversion of reactants to products is the same whether the conversion occurs in one step or several steps” (DiGiuseppe et al,2012,p.314 ). A series of two experiments will perform in this lab in order to find ΔH1 and ΔH2 . In addition, ΔH3 will be obtained by reference. It is predicted that the combustion of magnesium will have a negative enthalpy, since combustion is an exothermic reaction. Also…

shelter while also focusing on being environmentally friendly. Green roofs are partially or completely covered by vegetation with a growing medium on top of a waterproofing membrane. Like modern roofs, green roofs provide insulation for aspects such as heat conservation and sound insulation. Green roofs can improve the air quality by using the vegetation and growing medium to help reduce the amount of air pollutants that go into the atmosphere. Green roofs also provide a habitat for wildlife…

systems. One major issue facing urban and suburban areas is the Urban Heat Island Syndrome. An urban heat island is the effect of built environment and human activity on ambient air temperature. Basically, concrete and asphalt structures with human activity can absorb high levels of heat from the sun. According to the EPA, buildings and pavements can heat up to 90oF hotter than the air; then in the evening, the surfaces radiate that heat back into the air heating it as much as 22oF. These…

Cloning: Benefits, Harms, and Misconceptions For decades scientists have pondered over the idea of somatic cell nuclear transfer, otherwise known as cloning. In 1996, their ideas became tangible with the creation of Dolly the sheep, the first organism to ever be conceived through nuclear cell transfer. Today, scientists are closer than ever to clone human cells successfully. Although there is excitement over this potential scientific breakthrough, there are fearful and apprehensive reactions as…

Are lab made clones the same as naturally made humans? What is cloning anyways, clones are the exact genetic copies. Every single bit of their DNA is identical. Clones can happen naturally or been made in a lab. Do the one’s in the lab contain the same qualities as the natural born clones? For example, natural born humans grow up with parents and lab made clones live in a machine. Do lab made clones have a conscience like natural born humans? Clones may have the memories and individuality as…

into two categories: Therapeutic and Reproductive. In Therapeutic Cloning, the nucleus of an unfertilized egg is removed and replaced via injection with the nucleus of a somatic cell, or any body cell. This technique is called Somatic Cell Nuclear Transfer, or SCNT. Then, scientists use electricity or a source of stimuli to help the newly formed embryonic cell start its dividing process. After allowing the…