El estudio analizó las bacterias indicadoras de contaminación fecal en el río Almendares en Cuba entre 2002 y 2003. Se detectó una alta correlación entre coliformes fecales y enterococos, asociados con el grado de contaminación en tres estaciones debido a vertidos domésticos e industriales sin tratar. Los niveles bacterianos fueron mayores durante la época de lluvias. Se aislaron 155 cepas de coliformes fecales y 47 de enterococos, dominando Escherichia coli y Enterococcus faecium.
The document compares and contrasts the present perfect and past simple tenses. It provides examples of how each is used, noting that the past simple expresses a completed action at a specific point in time while the present perfect describes an unspecified action that occurred before now. Key differences are highlighted, such as the verb forms and time frames involved with each tense.
The document is a script for the film Shame written by Steve McQueen and Abi Morgan. It consists of scene descriptions from the film depicting main character Brandon Sullivan going through his morning routine and interactions on the subway while being distracted by urges and memories of past sexual encounters. The script explores Brandon's internal struggles with sex addiction through these short glimpses into his daily life.