Article: The Census Bureau's 20062010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $30,237 (with a margin of error of +/- $2,354) and the median family income was $35,488 (+/- $2,607). Males had a median income of $32,207 (+/- $1,641) versus $29,298 (+/- $1,380) for females. The per capita income for the city was $20,069 (+/- $2,532). About 23.1% of families and 25.3% of the population were below the poverty line, including 36.6% of those under age 18 and 16.8% of those age 65 or over.

Question: How much was the median income for males according to the American Community Survey?
Ans: $32,207

Article: The Bologna process has been adopted, since 2006, by Portuguese universities and poly-technical institutes. Higher education in state-run educational establishments is provided on a competitive basis, a system of numerus clausus is enforced through a national database on student admissions. However, every higher education institution offers also a number of additional vacant places through other extraordinary admission processes for sportsmen, mature applicants (over 23 years old), international students, foreign students from the Lusosphere, degree owners from other institutions, students from other institutions (academic transfer), former students (readmission), and course change, which are subject to specific standards and regulations set by each institution or course department. Most student costs are supported with public money. However, with the increasing tuition fees a student has to pay to attend a Portuguese state-run higher education institution and the attraction of new types of students (many as part-time students or in evening classes) like employees, businessmen, parents, and pensioners, many departments make a substantial profit from every additional student enrolled in courses, with benefits for the college or university's gross tuition revenue and without loss of educational quality (teacher per student, computer per student, classroom size per student, etc.).

Question: Over what age are higher education applicants considered mature?
Ans: over 23 years old

Article: The cuisine of Switzerland is multifaceted. While some dishes such as fondue, raclette or rosti are omnipresent through the country, each region developed its own gastronomy according to the differences of climate and languages. Traditional Swiss cuisine uses ingredients similar to those in other European countries, as well as unique dairy products and cheeses such as Gruyere or Emmental, produced in the valleys of Gruyeres and Emmental. The number of fine-dining establishments is high, particularly in western Switzerland.

Question: What unique dairy cheese is produced in the Swiss valleys of Gruyeres?
Ans: Gruyere

Article: Modern electrification systems take AC energy from a power grid which is delivered to a locomotive and converted to a DC voltage to be used by traction motors. These motors may either be DC motors which directly use the DC or they may be 3-phase AC motors which require further conversion of the DC to 3-phase AC (using power electronics). Thus both systems are faced with the same task: converting and transporting high-voltage AC from the power grid to low-voltage DC in the locomotive. Where should this conversion take place and at what voltage and current (AC or DC) should the power flow to the locomotive? And how does all this relate to energy-efficiency? Both the transmission and conversion of electric energy involve losses: ohmic losses in wires and power electronics, magnetic field losses in transformers and smoothing reactors (inductors). Power conversion for a DC system takes place mainly in a railway substation where large, heavy, and more efficient hardware can be used as compared to an AC system where conversion takes place aboard the locomotive where space is limited and losses are significantly higher. Also, the energy used to blow air to cool transformers, power electronics (including rectifiers), and other conversion hardware must be accounted for.

Question: What nowdays electrification systems can use?
Ans:
DC motors which directly use the DC or they may be 3-phase AC motors