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Season ten of the series premiered on January 19, 2011. Many changes were introduced this season, from the format to the personnel of the show. Jennifer Lopez and Steven Tyler joined Randy Jackson as judges following the departures of Simon Cowell (who left to launch the U.S. version of The X Factor), Kara DioGuardi (whose contract was not renewed) and Ellen DeGeneres, while Nigel Lythgoe returned as executive producer. Jimmy Iovine, chairman of the Interscope Geffen A&M label group, the new partner of American Idol, acted as the in-house mentor in place of weekly guest mentors, although in later episodes special guest mentors such as Beyoncé, will.i.am and Lady Gaga were brought in.

Who returned as executive producer this season?
Answer: Nigel Lythgoe
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Stanley Schachter formulated his theory on the earlier work of a Spanish physician, Gregorio Marañón, who injected patients with epinephrine and subsequently asked them how they felt. Interestingly, Marañón found that most of these patients felt something but in the absence of an actual emotion-evoking stimulus, the patients were unable to interpret their physiological arousal as an experienced emotion. Schachter did agree that physiological reactions played a big role in emotions. He suggested that physiological reactions contributed to emotional experience by facilitating a focused cognitive appraisal of a given physiologically arousing event and that this appraisal was what defined the subjective emotional experience. Emotions were thus a result of two-stage process: general physiological arousal, and experience of emotion. For example, the physiological arousal, heart pounding, in a response to an evoking stimulus, the sight of a bear in the kitchen. The brain then quickly scans the area, to explain the pounding, and notices the bear. Consequently, the brain interprets the pounding heart as being the result of fearing the bear. With his student, Jerome Singer, Schachter demonstrated that subjects can have different emotional reactions despite being placed into the same physiological state with an injection of epinephrine. Subjects were observed to express either anger or amusement depending on whether another person in the situation (a confederate) displayed that emotion. Hence, the combination of the appraisal of the situation (cognitive) and the participants' reception of adrenaline or a placebo together determined the response. This experiment has been criticized in Jesse Prinz's (2004) Gut Reactions.

Who was a notable student of  Stanley Schachter?
Answer: Jerome Singer
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Most Venezuelans have some indigenous heritage, but the indigenous population make up only around 2% of the total population. They speak around 29 different languages and many more dialects, but some of the ethnic groups are very small and their languages are in danger of becoming extinct in the next decades. The most important indigenous groups are the Ye'kuana, the Wayuu, the Pemon and the Warao. The most advanced native people to have lived in present-day Venezuela is thought to have been the Timoto-cuicas, who mainly lived in the Venezuelan Andes. In total it is estimated that there were between 350 thousand and 500 thousand inhabitants, the most densely populated area being the Andean region (Timoto-cuicas), thanks to the advanced agricultural techniques used.

Why are the languages of the indigenous peoples of Venezuela in danger of becoming extinct?
Answer:
groups are very small