Phytolacca americana

American pokeweed (Phytolacca americana), or simply pokeweed, is a herbaceous perennial plant in the pokeweed family Phytolaccaceae growing up to 8 feet (2 meters) in height. It is native to the eastern United States and has significant toxicity.

It has simple leaves on green to purplish stems and a large white taproot. The flowers are green to white, followed by purple to almost black berries which are a food source for songbirds such as gray catbird, northern mockingbird, northern cardinal, and brown thrasher, as well as other birds and some small animals (i.e., to species that are unaffected by its mammalian toxins).

Phytolacca. americana or pokeweed—also known by a number of other names—is native to eastern North America, the Midwest, and the Gulf Coast, with more scattered populations in the far West. It is considered a major pest species by farmers, and that and the danger of human poisoning—its significant toxicity and its risks to human and animal health are consistently reported, with the whole of the plant toxic and increasing in toxicity through the year, with children at particular risk of its very poisonous purple-red ripe fruit—support arguments for eradication of P. americana. Even so, it is used as an ornamental in horticulture, and it provokes interest for the variety of its natural products (toxins and other classes), for its ecological role, its historical role in traditional medicine, and for some utility in biomedical research (e.g., in studies of pokeweed mitogen). In the wild, it is easily found growing in pastures, recently cleared areas, and woodland openings, edge habitats such as along fencerows, and in waste places.

Trio

Trio may refer to:

Music

Groups

Works

Song elements

Film and television

Ultra high frequency

Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 MHz and 3 GHz, also known as the decimetre band as the wavelengths range from one meter to one decimetre. Radio waves with frequencies above the UHF band fall into the SHF (super-high frequency) or microwave frequency range. Lower frequency signals fall into the VHF (very high frequency) or lower bands. UHF radio waves propagate mainly by line of sight; they are blocked by hills and large buildings although the transmission through building walls is high enough for indoor reception. They are used for television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, and numerous other applications.

The IEEE defines the UHF radar band as frequencies between 300 MHz and 1 GHz. Two other IEEE radar bands overlap the ITU UHF band: the L band between 1 and 2 GHz and the S band between 2 and 4 GHz.

Batak

Batak is a collective term used to identify a number of ethnic groups predominantly found in North Sumatra, Indonesia. The term is used to include the Alas, Kluet, Singkil, Karo, Pakpak, Simalungun, Toba, Angkola, and Mandailing which are distinct but related groups with distinct - albeit related - languages and customs (adat).

In North Sumatra, Toba people typically assert their identity as 'Batak', while other 'Batak' may explicitly reject that label, preferring instead to identify as specifically 'Mandailing' and 'Karo' people.

Prehistory

Linguistic and archaeological evidence indicates that Austronesian speakers first reached Sumatra from Taiwan and the Philippines through Borneo and/or Java about 2,500 years ago, and the Batak probably descended from these settlers. While the archaeology of southern Sumatra testifies to the existence of neolithic settlers, it seems that the northern part of Sumatra was settled by agriculturalists at a considerably later stage.

Although the Batak are often considered to be isolated peoples thanks to their location inland, away from the influence of seafaring European colonials, there is evidence that they have been involved in trade with other neighbouring kingdoms for a millennium or more.