Micro/nanostructured surfaces can also enhance boiling (including pool boiling, liquid film boiling, flow boiling, jet impingement boiling, and spray cooling) and evaporation (such as capillary-driven ...

The U.S. State Department on Sunday ordered nonemergency government personnel to leave South Sudan’s capital as tension escalates because of fighting in the north. The travel advisory issued on ...

NAIROBI, Kenya — The U.S. State Department on Sunday ordered nonemergency government personnel to leave South Sudan’s capital as tension escalates because of fighting in the north. The travel ...

FILE - South Sudan's President Salva Kiir, right, and Vice President Riek Machar, left, attend a Holy Mass led by Pope Francis at the John Garang Mausoleum in Juba, South Sudan Sunday, Feb. 5 ...

WASHINGTON (Reuters) -The United States has ordered its non-emergency government personnel in South Sudan to leave the country because of security concerns, the State Department said on Sunday.

NAIROBI, Kenya (AP) — The U.S. State Department on Sunday ordered nonemergency government personnel to leave South Sudan’s capital as tension escalates because of fighting in the north. The travel ...

KAMPALA, Uganda (AP) — A crew member was killed and two others were injured when a United Nations helicopter on an evacuation mission in a remote part of South Sudan was attacked on Friday ...

JUBA, South Sudan (AP) — South Sudanese soldiers surrounded Vice President Riek Machar's home in the capital on Wednesday and several of his allies were arrested after an armed group allied to ...