Colin Wilson

Abstract:

The conditions of the surface of Venus are extremely harsh, and there is no naturally evolved life on Venus. E. coli is a bacteria with a number of subtypes and adaptations to varying environments. This paper covers a number of adaptations a theoretical colony of E. coli bacteria could evolve, based on pre-existing adaptations of E. coli to its natural environments

Abstract:

Misconceptions are understandings of concepts that are not in accordance with scientific concepts. Teachers have the potential to experience misconceptions and misconceptions that occur in teachers can result in students also experiencing misconceptions. Research that examines science misconceptions in elementary school teachers is still rare, so there is a need for research examining science misconceptions in elementary school teachers, especially in elementary school teachers who are certified educators. Therefore, this study aims at determining whether science misconceptions occur in elementary school teachers with teaching certificates or not and how much misconceptions are experienced and the misconceptions occurred. This study employs descriptive quantitative by involving 17 certified elementary school teachers who are classroom teachers teaching several subjects in elementary schools including science subjects. Data collection was done by conducting a four tier misconception diagnosis test and the result was analyzed using by referring to four tier test concept developed by various researchers. The findings indicated that primary school teachers possessing teaching certificates exhibited science misconceptions at a rate of 22%, placing them in the low category of scientific understanding at 66%. Despite the relatively low occurrence of misconceptions, it is advisable for certified primary school teachers to further enhance their grasp of the concepts they impart to prevent any potential hindrance to the learning process

Abstract:

The mid-infrared channel of the Atmospheric Chemistry Suite (ACS MIR) onboard the ExoMars Trace Gas Orbiter is capable of observing the infrared absorption of ozone (O3) in the atmosphere of Mars. During solar occulations, the 003←000 band (3,000-3,060 cm−1) is observed with spectral sampling of ∼0.045 cm−1. Around the equinoxes in both hemispheres and over the southern winters, we regularly observe around 200–500 ppbv of O3 below 30 km. The warm southern summers, near perihelion, produce enough atmospheric moisture that O3 is not detectable at all, and observations are rare even at high northern latitudes. During the northern summers, water vapor is restricted to below 10 km, and an O3 layer (100–300 ppbv) is visible between 20 and 30 km. At this same time, the aphelion cloud belt forms, condensing water vapor and allowing O3 to build up between 30 and 40 km. A comparison to vertical profiles of water vapor and temperature in each season reveals that water vapor abundance is controlled by atmospheric temperature, and H2O and O3 are anti-correlated as expected. When the atmosphere cools, over time or over altitude, water vapor condenses (observed as a reduction in its mixing ratio) and the production of odd hydrogen species is reduced, which allows O3 to build up. Conversely, warmer temperatures lead to water vapor enhancements and ozone loss. The LMD Mars Global Climate Model is able to reproduce vertical structure and seasonal changes of temperature, H2O, and O3 that we observe. However, the observed O3 abundance is larger by factors between 2 and 6, indicating important differences in the rate of odd-hydrogen photochemistry.