Saturday, February 22, 2020

Introduction Lab Report Example | Topics and Well Written Essays - 250 words

Introduction - Lab Report Example Coral reefs are found in about 100 countries and are home to over 25% of marine population and are the world's most fragile ones. They are topographically complex. Thousands of species of fish and invertebrates live in association with reefs, because of their complexity. For example, hundreds of colonial invertebrate species are found living on the undersides of platy corals in Caribbean Sea. Coral Bleaching: Coral bleaching is the whitening of diverse coral colonies. It happens as the reaction of the loss of symbiotic zooxanthellae, residing within corals, or a reduction in its photosynthetic pigments. Factors causing coral bleaching include various anthropogenic and natural variations in the environment including sea temperature, solar irradiance, sedimentation, xenobiotics, sub aerial exposure, inorganic nutrients, freshwater dilution, and epizootics. Coral bleaching is caused by both low as well as high levels of salinity. Low salinity level originates from sea water dilution tha t is a result of high precipitation events or storm runoff. High salinity levels are produced by the desalination plant operations. Copper accumulation is the dominant trait of Aiptasia pallida. They are sensitive towards the relevant copper concentrations. Hence they may be useful in bio-monitoring of copper polluted environments.

Thursday, February 6, 2020

Cyber Security Essay Example | Topics and Well Written Essays - 250 words - 2

Cyber Security - Essay Example If such antivirus are programmed to be deleting files purported to be infected, this can lead to loss of crucial information and at times cause unnecessary inconveniences. Mishra (2013), suggests that files purported to be infected should be isolated (quarantined) into a different directory for repair. However, the infected files should be stored in special directories such as ‘virus bin’ in order to minimize chances of using the infected files because such a move would result into spreading of the virus. Toolwire online labs has numerous tools that are meant for defending operational systems against attacks that compromise the confidentiality, integrity and/or availability  Ã‚  of information and information systems. The most obvious ones include the aspect of helping identify spam emails and disabling pop-ups. Fraudsters use spam emails in order to steal identity of the email users or what is commonly known as phishing. Spam emails are usually spoofed email messages purporting to originate from legitimate businesses and agencies or sources yet they are designed to lead customers to fraudulent websites that reveal customers’ financial data like usernames and passwords (Carpenter, Zhu & Kolimi, 2014). Criminals also engage in phishing using malware with pop-ups being their most preferred strategy. Internet users are advised to disable pop-ups, a service provided by Toolwire online labs, avoid entering personal information in pop-up screen, not to click on the links displayed on the pop-up screen, and not to copy web addresses displayed on them. Any legitimate organization would not ask for personal information on pop-up screens, hence customers should take precautions (Carpenter, Zhu & Kolimi,