Linear regression

into five marijuana trajectory groups: non-users, infrequent users, decreasing users, increasing users and frequent users. To explore the associations between marijuana trajectories and academic outcomes researchers uses a random-effects linear and logistic regression models. The results indicate that compared to non-users, decreasing and frequent users were more likely to drop out or delay graduation. Additionally, compared to non-users, all marijuana user groups reported lower GPAs, on…

Introduction How an individual learns to grow, adjust, and interact within their environment can be a positive or negative experience. One’s surroundings can be nourished or neglected based on factors that are important for healthy biopsychosocial development. It is important to recognize how every system is associated because each one impacts the other. Emma’s case is merely one example of the outcomes resulting from negative life experiences. Sexual abuse, divorce, and lack of support within…

GDR resulting in final unification. The twisted road towards democracy, needless to say, has faced many obstacles and yet, Germany remains an unquestionable haven for parliamentary democracy. The pathway to Germany’s democratic success has not been linear process; rather, the rapid and immediate succession…

The production department, usually factory manager informs the purchase department about the requirements of materials. The information is passed through the purchase intent issued by factory manager to the purchase manager. In case of regular product like stationary and small purchase, the store in charge issues the purchase intend giving a copy to the factory manager item specification, required quantity, name of the manufacture, approximate costs etc. are mentioned in the purchase intend. The…

1.5. Enzyme-Polysaccharide Interactions Proteins and enzymes have become an integral part of many industrial processes as well as being applied both in cosmetics and in therapeutics. Due to advances in biotechnology and genetic engineering, mass production of protein and enzymes has become feasible. Use of enzymes is environmentally friendly as they catalyse reactions under mild conditions against polluting inorganic catalysts which works in the extremes of pH and temperature. However, this can…

Magnetic Resonance Imagining (MRI) measure the frequency of magnetic-resonance signal. These signals can be measured at the same time, and their location is sorted based on resonant frequency. deCharms (2008) alikeness the MRI process to hearing several notes on a piano concurrently and then separating out the individual keys that produced each note based on the pitch of the note. MRI measures simultaneous signals emitted from an individual (just like the piano) and the origins of each signal…

Experimental Conditions It is important to note that in our lab experiment we used galena, PbS, with 170 – 200 mesh (i.e. there were 170 to 200 wires per inch of sieve used to sort out the galena crystals). This means our diameter range of our particle size was 75-90 μm. Table 1:Experimental Conditions for PbS leaching FeCl3·6H2O (g) to be added is found by: The weight of FeCl3·6H2O (g) added in our experiment was slightly larger than the theoretical amount of FeCl3·6H2O needed, as can be seen…

same crime will occur in the same small area again as opposed to somewhere else for a limited time, usually pegged at a few weeks (Ferguson 5). Near repeat patterns are the most simplistic method of predictive analysis - they rely upon simple linear regression models that draw a correlation between one or two factors and one result, instead of taking in a breadth of factors into consideration, and they were commonly used before the introduction of more sophisticated software (Ferguson 6). In the…

4.2.1. MDG 1 – Poverty Reduction and Job and Food Security Many studies on the MDGs have generally agreed that there is a correlation between an improvement in the economic performance (measured by GDP per capita, or PPP in some instance) with an overall increase in improvement of countries in reaching the MDGs. This is self-evident in the MDG 1: Eradicating Extreme Hunger and Poverty (Bourguignon et al. 2008, pp.13–14; Melamed 2010, pp.1–2). It has been noted that poverty reduction in…

Introduction Quantum dots (Q-Dots) is very small semiconductor particles that means it can be either conductors or resist electricity depending on the temperature and purity of the semiconductor. Q-dots range in size from 2-10 nm, so because of their small size, quantum mechanics governs the physics of the particles. The synthesis Q-Dots were first studied in 1982 by Efros and Ekimov, and then many developments have reported the synthesis of semiconductor nanoparticles.1 Q-Dots have unique…