Examples of opsonins are antibody molecules such as the IgM that are capable of activating the complement system to increase the susceptibility of antigens to phagocytosis. Apart from phagocytosis, opsonization can also promote antibody-dependent cell-mediated cytotoxicity. What molecules affect opsonization? Opsonization of bacteria takes place when immunoglobulin G (IgG) moleculesRead More →
Low Levels of Norepinephrine Since norepinephrine controls our “fight or flight” response and body movements, low levels of this neurotransmitter can cause anxiety, high blood pressure, and physical pain. Other symptoms of low norepinephrine levels include: Anxiety. Migraine headaches. What neurotransmitter causes generalized anxiety disorder? Neurotransmitters altering amygdala volume: InRead More →
WHICH COUNTRIES WERE INVOLVED? In Europe, the main countries in the trade were England, France, Spain and Portugal. West Africa was involved in the slave trade which went to The Caribbean, Brazil, Peru and South-Eastern US. What was the most traded item in the Columbian Exchange? What was the mostRead More →
The River is one of South Africa’s most watched telenovelas and at the helm of its storyline is the 34-year-old Phathutshedzo “Phathu” Makwarela, an award-winning scriptwriter and co-founder at Tshedza Pictures. Is gamora owned by the Fergusons? The highly popular Mzansi Magic weekday series, Gomora, is produced by the Johannesburg-basedRead More →
Donald Vidrine, one of the two BP rig supervisors overseeing the Deepwater Horizon when the rig exploded in April 2010, died Saturday at his home in Baton Rouge, Louisiana after a three-year battle with cancer. Who paid for the Deepwater Horizon oil spill? BP paid dearly for the reckless corporateRead More →
For Britain’s involvement in the First Vietnam War, the officially stated casualty list was 40 British and Indian soldiers killed and French and Japanese casualties a little higher. … About 600 of the dead Viet Minh were killed by British soldiers, the rest by the French and Japanese. Why didRead More →
Three campaigns drive the conflict: coalition efforts to defeat the Islamic State, violence between the Syrian government and opposition forces, and military operations against Syrian Kurds by Turkish forces. The Islamic State began seizing control of territory in Syria in 2013. Is the US involved in the Syrian civil war?Read More →
Chorea is an ongoing random-appearing sequence of one or more discrete involuntary movements or movement fragments. Athetosis is a slow, continuous, involuntary writhing movement that prevents maintenance of a stable posture. What causes Choreiform movements? Chorea is an abnormal involuntary movement disorder, one of a group of neurological disorders calledRead More →
Fluid bed drying is a process by which particles, typically greater than 50 microns, are fluidized and dried. For the material to become fluidized, the particulates are placed under conditions that cause it to behave like a fluid. What are the advantages of fluidized bed dryer? Advantages of Fluid BedRead More →
Work then began on the stockade. Troops and police surrounded the 150 diggers who were within the structure on December 3. After refusing to come out, the diggers opened fire on the government forces. The ensuing battle lasted for 15 minutes and ended with the rout of the diggers. HowRead More →