Rota (surname)

Rota is a surname. Notable people with the surname include:

See also

Schedule (workplace)

A schedule, often called a rota or roster, is a list of employees, and associated information e.g. location, working times, responsibilities for a given time period e.g. week, month or sports season.

A schedule is necessary for the day-to-day operation of many businesses e.g. retail store, manufacturing facility and some offices. The process of creating a schedule is called scheduling. An effective workplace schedule balances the needs of stakeholders such as management, employees and customers.

A daily schedule is usually ordered chronologically, which means the first employees working that day are listed at the top, followed by the employee who comes in next, etc. A weekly or monthly schedule is usually ordered alphabetically, employees being listed on the left hand side of a grid, with the days of the week on the top of the grid. In shift work, a schedule usually employs a recurring shift plan.

A schedule is most often created by a manager. In larger operations, a human resources manager or scheduling specialist may be solely dedicated to creating and maintaining the schedule. A schedule by this definition is sometimes referred to as workflow.

Róta

In Norse mythology, Róta is a valkyrie. Róta is attested in chapter 36 of the Prose Edda book Gylfaginning, where she is mentioned alongside the valkyries Gunnr and Skuld, and the three are described as "always [riding] to choose who shall be slain and to govern the killings." Otherwise, Róta appears in two kennings, one by Egill Skallagrímsson and one by Hallfreðr vandræðaskáld. Theories have been proposed about the possible appearance of Róta in Gesta Danorum and the meaning of her name.

Theories

Name

According to Guðbrandur Vigfússon, the name Róta is connected to the Old Norse noun róta (meaning "sleet and storm") and Róta is "a goddess who sends storm and rain."

Gesta Danorum

In book two of Gesta Danorum, a female by the name of "Ruta" is mentioned:

Axel Olrik considered this as an isolated reference to Hrólfr Kraki's widow Hrut mourning on the battlefield with blond hair. Hilda Ellis Davidson says "it seems more probable that it is a reference to the deathly pale head of the valkyrie, the spirit brooding over the battlefield personifying slaughter, who is summoned at the outset of battle." Davidson points out that Róta is the name of a valkyrie, and that "it seems preferable to assume" this to Olrik's theory. Davidson says that while this is, however, complicated by an earlier mention in book two of Hrólfr Kraki's sister and Bödvar Bjarki's wife Hrut, yet this Hrut is not found elsewhere as a female name.

Tierra (computer simulation)

Tierra is a computer simulation developed by ecologist Thomas S. Ray in the early 1990s in which computer programs compete for time (central processing unit (CPU) time) and space (access to main memory). In this context, the computer programs in Tierra are considered to be evolvable and can mutate, self-replicate and recombine. Tierra's virtual machine is written in C. It operates on a custom instruction set designed to facilitate code changes and reordering, including features such as jump to template (as opposed to the relative or absolute jumps common to most instruction sets).

Simulations

The basic Tierra model has been used to experimentally explore in silico the basic processes of evolutionary and ecological dynamics. Processes such as the dynamics of punctuated equilibrium, host-parasite co-evolution and density-dependent natural selection are amenable to investigation within the Tierra framework. A notable difference between Tierra and more conventional models of evolutionary computation, such as genetic algorithms, is that there is no explicit, or exogenous fitness function built into the model. Often in such models there is the notion of a function being "optimized"; in the case of Tierra, the fitness function is endogenous: there is simply survival and death.

Tierra (band)

Tierra is a Latin R&B band, originally from Los Angeles, California, that was first established in the 1970s by former El Chicano members Steve Salas (vocals) and his brother Rudy Salas (guitar). The other original members were Bobby Navarrete (reeds), Joey Guerra (keyboards), Steve Falomir (bass guitar), and Philip Madayag (drums) and Andre Baeza (percussion). Their biggest hit was the 1980 remake of The Intruders' 1967 hit "Together", written by Gamble & Huff, which reached #18 on the Billboard Hot 100, and #9 on the US Billboard R&B chart.

Background

Tierra has the distinction of being the first Latino band to have four songs on the national chart with two of them in the Top 100 at the same time.

Around 1973, Rudy and Steve Salas formed Tierra and their self-titled debut album was recorded. By the mid-1970s the band consisted of the Salas brothers, Rudy Villa on reeds, Kenny Romain on drums and latin-percussion, Conrad Lazano on bass, Aaron Ballesteros on drums and vocals, Alfred Rubaclava on bass and Leon Bisquera on keyboards. Around that time they recorded the album Stranded for the Salsoul records label.

Earth

Earth /ˈɜːrθ/ (also the world, in Greek: Γαῖα Gaia, or in Latin: Terra) is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to harbor life.

According to evidence from radiometric dating and other sources, Earth was formed about 4.54 billion years ago. Earth gravitationally interacts with other objects in space, especially the Sun and the Moon. During one orbit around the Sun, Earth rotates about its own axis 366.26 times, creating 365.26 solar days or one sidereal year. Earth's axis of rotation is tilted 23.4° away from the perpendicular of its orbital plane, producing seasonal variations on the planet's surface with a period of one tropical year (365.24 solar days). The Moon is Earth's only permanent natural satellite. Its gravitational interaction with Earth causes ocean tides, stabilizes the orientation of Earth's rotational axis, and gradually slows Earth's rotational rate.