2017
Resultado de búsqueda
Hace 6 horas · Extreme heat continues to inflict wide swaths of the U.S. This weekend, the brunt of the hot temperatures is falling on the West Coast and parts of the East Coast. In total, over 132 million people were under some form of a heat warning as of Saturday evening, according to Heat.gov . "These conditions will be extremely dangerous and potentially ...
Hace 6 horas · Extreme heat continues to inflict wide swaths of the U.S. This weekend, the brunt of the hot temperatures is falling on the West Coast and parts of the East Coast. In total, over 132 million ...
Hace 5 horas · The forced and voluntary movement of Africans in the Indian Ocean remains one of the least known of the African migratory routes, although it had an impact on millions of people through personal contact, cultural influence, or the fruits of Black labor. 10 At least 1,500 years before European slave trading, Arabs had taken African peoples across the Sahara Desert, the Mediterranean Sea, the ...
Hace 1 día · In the history of the Americas, the pre-Columbian era, also known as the pre-contact era, spans from the original peopling of the Americas in the Upper Paleolithic to European colonization, which began with Christopher Columbus's voyage of 1492. Usually, the era covers the history of Indigenous cultures until significant influence by Europeans. This may have occurred decades or even centuries ...
Hace 6 horas · The heat is expected to stay warm overnight, limiting chances to recover from the heat, the NWS said. Several areas in the Pacific Northwest broke daily highs on Friday, including Portland and Salem in Oregon as well as Vancouver in Washington. In Salem, the high was 103 degrees — surpassing the previous record of 99 degrees in 1960.
Hace 5 horas · The pressure is on this season for the Ohio State football team. The Buckeyes have one of the most talented rosters in the country heading into the 2024 season, and they need to end their three-game losing skid over rival Michigan. The Wolverines have a new head coach and will have almost all new starters next year.
Hace 5 horas · The catalytic capabilities of metals in degrading azo dyes have garnered extensive interest; however, selecting highly efficient metals remains a significant challenge. We have developed a Zn-Ca-based metallic glass composite which shows outstanding degradation efficiency for Direct Blue 6. This alloy comprises a Zn2Ca crystalline phase and an amorphous matrix, allowing for the degradation of ...
