africa – Page 3 – Shamskm: A site to exchange knowledge and solutions

Male lions use ambush hunting strategy

By Guest PostMarch 21, 2013Nature3d maps, africa, african savanna, ambush style hunting, animal behavior, balance, cao aircraft, carnegie, carnegie airborne observatory, craig tambling, female lions, females, gps tracking, greg asner, habitats, hunting, kruger national park, lidar scanner, male lions, open grassy savannas, petr kratochvil, predators, prey, savanna vegetation, scott loarie, South Africa, species, university of pretoria, viewsheds

Washington, D.C.— It has long been believed that male lions are dependent on females when it comes to hunting. But new evidence suggests that male lions are, in fact, very successful hunters in their own right. A new report from a team including Carnegie’s Scott Loarie and Greg Asner shows that male lions use dense savanna vegetation for ambush-style hunting in Africa. Their work is published in Animal Behavior.

Female lions have long been observed to rely on cooperative strategies to hunt their prey. While some studies demonstrated that male lions are as capable at hunting as females, the males are less likely to cooperate, so there were still questions as to how the males manage to hunt successfully. The possibility that male lions used vegetation for ambushing prey was considered, but it was difficult to study given the logistics and dangers of making observations of lions in densely vegetated portions of the African savanna. (more…)

NASA’s Aquarius Sees Salty Shifts

By Guest PostMarch 1, 2013Environmentafrica, amazon river mouth, aquarius, aquarius instrument, arabian sea, argentine built, bay of bengal, caribbean, changing global climate, chronicle, cold polar waters, conae, cycling of freshwater, eastern tropical pacific, eric lindstrom, flag data, ganges, gary lagerloef, gene carl feldman, global rainfall patterns, heavy rain, ice free oceans, land contamination, large freshwater plume, mediterranean sea, microwave emissions, microwave radiometer, middle east, monsoon rains, NASA, ocean circulation, ocean salinity patterns, ocean salinity satellite, panama coast, pulses of freshwater, salinity processes, salinity variations, salty arabian sea, salty shifts, salty world, seasonal stirrings, smos, soil moisture, spacecraft, spurs, surface salinity data, varying salinity patterns, winter

The colorful images chronicle the seasonal stirrings of our salty world: Pulses of freshwater gush from the Amazon River’s mouth; an invisible seam divides the salty Arabian Sea from the fresher waters of the Bay of Bengal; a large patch of freshwater appears in the eastern tropical Pacific in the winter. These and other changes in ocean salinity patterns are revealed by the first full year of surface salinity data captured by NASA’s Aquarius instrument.

“With a bit more than a year of data, we are seeing some surprising patterns, especially in the tropics,” said Aquarius Principal Investigator Gary Lagerloef, of Earth & Space Research in Seattle. “We see features evolve rapidly over time.” (more…)

‘To the Mountaintop’: Journalist Discusses Social Justice Yesterday, Today, and Tomorrow

By Guest PostFebruary 18, 2013Culture, Politicsactivist, africa, african americans, aids, american culture, american dream, author, award winning journalist, charlayne hunter gault, civil rights movement, constitution, equity, future generations, highest hiv rates, hiv, james p comer, maggie, mainstream media, martin luther king, new haven, philosopher frantz fanon, public health, social justice, South Africa, success, timeless, to the mountaintop, transcendent, women of color, yale

Award-winning journalist, activist, and author Charlayne Hunter-Gault told a packed audience at Yale that lessons learned from the civil rights movement still have relevance for current and future generations.

Hunter-Gault delivered a lecture titled “Social Justice, Equity, and Public Health” during a Branford College master’s tea on Feb. 5. (more…)

Kofi Annan to students: ‘It’s your world now’

By Guest PostFebruary 13, 2013General, Politicsabsolutely essential, afghanistan, africa, arab league, city college, civil war, cuny, east timor, economic prospects, egypt, geneva, global food security, India, international monetary fund, jackson institute, Japan, jean krasno, john negroponte, kofi annan, kosovo, latin america, macalestar college, minnesota, native ghana, new york, nigeria, nutrition, Pakistan, political, radical change, russia, security council, sub-saharan africa, switzerland, syria, town hall meeting, un secretary general, united states, violent world conflicts, world economy

Former U.N. secretary-general Kofi Annan predicted during a campus visit that the civil war in Syria will become even more tragic before the international community takes action to help resolve the conflict, but said he is optimistic about the political and economic prospects for Africa in the years ahead. (more…)

U.S. Army, U.S. Air Force and DISA Expand Access to Microsoft Technologies through Cost-Saving Modernization Agreement

By Guest PostJanuary 4, 2013Technologyadvanced mobility, africa, air force base, alabama, asia-pacific, big data, cloud computing, cybersecurity, defense, department of defense, disa, dod, Europe, fort huachuca, gunter annex, information systems agency, insight enterprises, insight public sector, it costs, microsoft corp., microsoft office 2013, microsoft solutions, middle east, mobility, North America, reduce, sharepoint 2013, tim solms, us air force, us army, windows 8

Insight Public Sector selected to deliver licensing agreement aimed at reducing IT costs while offering advanced mobility, collaboration and cloud computing capabilities to personnel.

WASHINGTON, D.C. — Jan. 4, 2013 — In an effort to modernize technology infrastructure, reduce costs and foster new levels of cross-agency collaboration, the U.S. Army, U.S. Air Force and Defense Information Systems Agency (DISA) are expanding access to Microsoft solutions by entering into a transformative three-year Joint Enterprise Licensing Agreement for enterprise licenses and software assurance. The agreement provides all three organizations with a single vehicle for accessing the latest Microsoft technologies in support of top IT priorities around datacenter consolidation, collaboration, cybersecurity, mobility, cloud computing and big data.

This is the most comprehensive licensing agreement Microsoft Corp. has ever established with the U.S. Department of Defense (DoD), covering nearly 75 percent of all DoD personnel. The net new contract was awarded to Insight Public Sector, a division of Insight Enterprises Inc., one of the largest global Microsoft Large Account Resellers. (more…)

Scientists Find Oldest Dinosaur – or Closest Relative Yet

By Guest PostDecember 7, 2012Nature, Scienceafrica, alan charig, ancestry, Antarctica, archosaurs, australia, bone cells, bone tissues, cape town, dinosaur family tree, dinosaur like characteristic, dinosaur lineage, diversification, earliest dinosaur, earth, eoraptor, evidence, evolution of dinosaurs, familiar dinosaurs, fossil, fossilized bones, fossilized footprints, herrerasaurus, humerus, labrador retriever, late triassic, lizard, london, middle triassic, middle triassic dinosaurs, natural history museum, nyasa, nyasasaurus parringtoni, oldest dinosaur, paleontologist, paleontology, pangaea, paul barrett, period, permian extinction, primitive dinosaurs, royal society, sarah werning, saurus, single bone, south african museum, south america, southern pangaea, sterling nesbitt, Tanzania, taxon, transitional fossil, triassic period, united kingdom, university, upper arm bone, vertebrae, Washington

Researchers have discovered what may be the earliest dinosaur, a creature the size of a Labrador retriever, but with a five foot-long tail, that walked the Earth about 10 million years before more familiar dinosaurs like the small, swift-footed Eoraptor and Herrerasaurus.

The findings mean that the dinosaur lineage appeared 10 million to 15 million years earlier than fossils previously showed, originating in the Middle Triassic rather than in the Late Triassic period. (more…)

Leader in Study Abroad

By Guest PostNovember 13, 2012Educationafrica, Antarctica, China, concept, cultures, delaware, doctoral institutions, iie, India, institute, international education, invent, kayla volpe, lisa chieffo, miami university, nancy guerra, open doors, panama, programs, saudi arabia, saudi government, scholarship, short term, south korea, student, study abroad, turkey, university, Washington

UD ranks third among U.S. public doctoral institutions in study abroad participation

The University of Delaware ranks third in study abroad participation among U.S. public doctoral institutions, according to the 2012 Open Doors report released Nov. 13 by the Institute of International Education (IIE).

During the 2010–11 academic year, more than one out of every three UD students (34.7 percent) studied abroad. Most pursued “short term” programs of eight weeks or less. (more…)

Exploring Energy Poverty

By Guest PostNovember 5, 2012Environmentafrica, areas, ashanti region, delaware, developing regions, doctoral student, electrical grid, electricity, electrification, energy center, energy need, energy poverty, ghana, global research, knust, kumasi, lily lamptey, peri urban, policy analysis, resources, south asia, sub-saharan, transition zone, united states, university

Doctoral student studies energy poverty in Ghana, Africa

In the United States, electricity is a creature comfort many citizens take for granted. Yet for more than a billion people across the globe, particularly in developing regions, electrification is the exception, not the norm.

Sub-Saharan Africa, for example, is the least electrified region in the world. It has the lowest generation capacity behind eastern South Asia and few programs that provide access to modern forms of energy. (more…)

Tag Archives: africa