COVER STORY
any given school day, teen-agers across the nation stumble out of bed and prepare for the day. For most, the alarm clock buzzes by 6:30 a.m., a scant seven hours after they went to bed. Many students board the school bus before 7 a.m. and are in class by 7:30. In adults, such meager sleep allowances are known to affect day-to-day functioning in myriad ways. In adolescents, who are biologically driven to sleep longer and later than adults do, the effects of insufficient sleep are likely to be even more dramatic--so much so that some sleep experts contend that the nation's early high-school start times, increasingly common, are tantamount to abuse. "Almost all teen-agers, as they reach puberty, become walking zombies because they are getting far too little sleep," comments Cornell University psychologist James B. Maas, PhD, one of the nation's leading sleep experts. There can be little question that sleep deprivation has negative effects on adolescents. According to the National Highway Traffic Safety Administration, for example, drowsiness and fatigue cause more than 100,000 traffic accidents each year--and young drivers are at the wheel in more than half of these crashes. Insufficient sleep has also been shown to cause difficulties in school, including disciplinary problems, sleepiness in class and poor concentration. "What good does it do to try to educate teen-agers so early in the morning?" asks Maas. "You can be giving the most stimulating, interesting lectures to sleep-deprived kids early in the morning or right after lunch, when they're at their sleepiest, and the overwhelming drive to sleep replaces any chance of alertness, cognition, memory or understanding." Recent research has also revealed an association between sleep deprivation and poorer grades. In a 1998 survey of more than 3,000 high-school students, for example, psychologists Amy R. Wolfson, PhD, of the College of the Holy Cross, and Mary A. Carskadon, PhD, of Brown University Medical School, found that students who reported that they were getting C's, D's and F's in school obtained about 25 minutes less sleep and went to bed about 40 minutes later than students who reported they were getting A's and B's. In August, researchers at the University of Minnesota reported the results of a study of more than 7,000 high-school students whose school district had switched in 1997 from a 7:15 a.m. start time to an 8:40 a.m. start time. Compared with students whose schools maintained earlier start times, students with later starts reported getting more sleep on school nights, being less sleepy during the day, getting slightly higher grades and experiencing fewer depressive feelings and behaviors. Also troubling are findings that adolescent sleep difficulties are often associated with psychopathologies such as depression and attention deficit hyperactivity disorder (ADHD). This research, combined with studies showing widespread sleep deprivation among teens, has propelled efforts to educate children and adults about the importance of a good night's sleep and to persuade schools to push back high-school starting times. "There is substantial evidence that the lack of sleep can cause accidents, imperil students' grades and lead to or exacerbate emotional problems," says U.S. Rep. Zoe Lofgren (D-Calif.), who has introduced a bill that would provide federal grants to help school districts defray the cost of pushing back school starting times. Adjusting school schedules, Lofgren says, "could do more to improve education and reduce teen accidents and crime than many more expensive initiatives." The research has also spurred further investigations into why teens need extra sleep, the effects of sleep deprivation on cognition, emotion regulation and psychopathology, and the long-term consequences of chronic sleep deprivation.
During his dream last night Herbie imagined he was able to fly and jumped off of the roof, flying around his home town. He awoke in his bed, and clearly had not moved all night. Why didn’t he try to fly with his body if his brain was so active?
a)
Herbie's circadian rhythms kept him asleep
b)
Herbie was dreaming during REM sleep
c)
Herbie does not experience sleep walking, and therefore has an abnormal sleep cycle
d)
Dreams happen during the awake-aroused part of the sleep cycle
body can move during REM sleep n wake arousal. sleep walk has nothing to do with it. so by elimination, ans is A.
Hi!
During his dream last night Herbie imagined he was able to fly and jumped off of the roof, flying around his home town. He awoke in his bed, and clearly had not moved all night. Why didn’t he try to fly with his body if his brain was so active?
Answer - Herbie's circadian rhythms kept him asleep
If someone receives a shock or piece of equipment is throwing sparks ot arcing you should try to pull them away from the source of the electricity
THE ANSWER gonna be F
Another word for 10 meters in the metric system is
The decimeter (dm) is the next largest unit of length and equals 1/10 of a meter
In the metric system, 10 meters is equivalent to 1 decameter. This is because the metric system works based on powers of 10.
In the metric system, another term for 10 meters would be 1 decameter.
The prefixes in the metric system are based on powers of 10.
So, when you move higher or lower in units, you are essentially multiplying or dividing by powers of 10.
For example, there are 10 meters (m) in 1 decameter (dam), 1000 meters in 1 kilometer (km) and one tenth of a meter (0.1 m) in a decimeter (dm). Hence, 10 meters is equivalent to 1 decameter.
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When DNA is replicating where do the DNA nucleotides in the NEW strands come from?
joining newly arrived nucleotides into a new DNA strand that is complementary to the template
When a mediator guides the mediation process, but does not express an opinion, this is called _______ mediation.
A. interactive
B. facilitative
C. expressive
D. direct
i beleive the correct answer is b
What can transfer thermal energy between objects that are not touching
I need the answers:
Question 9 "studies indicate that attaining a higher education degree improves job prospects
This example is a statement of fact. There are a lot of researches that emphasized the fact that earning a college degree or higher education degree improves job prospects or better opportunities in life.
In addition, taking college degree prepares an individual both intellectually and socially, which then help him improve his adult life and future. The benefits of higher education includes career growth with better paying jobs that could lead to financial stability and overall happiness.
What would you predict to be the most likely most likely long term effect on an organism with damaged mitochondria
What does the letter ‘r' represent in the s.P.I.D.E.R. Method?
The answer to your question is,
Response.. or Executing a Response.
-Mabel <3
Its Response
AND YW ;3
What's in the control center of a cell? A. Organelles B. Nucleus C. Cytoplasm D. Plasma membrane
The answer is B) Nucleus.
What is the Strength of the single member system
The strength of the single member system is that what the member wants would be passed. There are no external opposition at all, and action can be quickly taken when problem arises.
hope this helps
As Christian walked toward the stage to give his speech, his heartrate accelerated, his blood pressure rose, and he began to sweat. His state of arousal was activated by what part of the nervous system?
a)
Central
b)
Sympathetic
c)
Peripheral
d)
Parasympathetic
As Christian walked toward the stage to give his speech, his heartrate accelerated, his blood pressure rose, and he began to sweat. His state of arousal was activated by what part of the nervous system?
Answer - b) Sympathetic
Sympathetic - feeling, showing, or expressing emotion
In this question Christian was probably scared and nervous so thats when he got sweaty and his heart rate rose.
ans is b) Sympathetic
Sympathetic is the part of nervous system that responds to anxiety with change in body functions.
Motorcyclists face distinct dangers because they __________. A. Are hard to see B. Are not entitled to use a full lane C. Do not have the same legal protections as cars and trucks D. All of the above
Answer:
A. Are hard to see
Explanation:
Motorcyclists have the same responsibilities and rights as car and truck drivers. The same rules apply to all of them (the motorcyclists are also entitled to a full lane), but an important difference is the lack of visibility in the motorcyclists' case. To decrease the issue, many motorcycles have headlights that automatically turn on when the vehicle starts moving.
Measures of precaution are expected from the car and truck drivers, too. For example, they shouldn't only check their mirrors, but do a visual check as well, as motorcycles can easily end up in the blind spot of the vehicle. The drivers should dim their headlights while approaching a motorcycle as, for them, the blinding effect is greater.
The right upper quadrant contains the A. transverse colon. B. appendix. C. ovaries. D. spleen.
The right upper quadrant (RUQ) contains the liver, gallbladder, a part of the pancreas, and a part of the intestines, including the transverse colon. Therefore, the answer to the question is A. transverse colon.
Explanation:The right upper quadrant (RUQ) of the human abdomen consists of several organs such as the liver, the gallbladder, a part of the pancreas, and a part of the small and large (specifically, the ascending and transverse) intestines. Hence, the correct answer to the provided multiple choice question 'The right upper quadrant contains the' would be A. transverse colon. The other options (appendix, ovaries, spleen) are not located in the RUQ. The appendix is found in the lower right quadrant, the spleen in the upper left quadrant, and the ovaries are within the pelvic area.
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all of the following are characteristics of AP courses compared with regular high school courses except:
A. they require more effort.
B. they require more homework.
C. they require more class time.
D. they require more class time analytical writing
The AP course is made for the advanced placements and they are created by the collage board of the US and have other college-level circulation materials.
The university can grant placements serves as these courses have grades that are evaluated.They need more time and preparation. Option C is correct.
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Was the Louisiana Purchase Jeffersonian or Hamiltonian? Strict or Loose? Federalist or Democratic-Republican? How did this purchase impact migration?
Define transduction and explain where it occurs in the eye and ear
is the process by which foreign DNA is introduced into a cell by a virus or viral vector. An example is the viral transfer of DNA from one bacterium to another. Psychology Definition. Ok, so how does our eye turn the light into neural impulses so that our brain can understand. Most of the process occurs on the back of the eye called the retina. The retina is the most important part of our eye. Stimulation of this area leads to conscious awareness of the sound, but the transduction from mechanical vibrations to neural activity occurs in the inner ear.
The section tests students' ability to solve problems related to algebra, trigonometry, and geometry. The section tests how well the students can write. The section tests the students' knowledge about sentence structure.
In a study, five people are asked to taste test three dishes, one of which tastes like garbage. They must then judge which dish was the best. However, four of the people are confederates and are told to always say that the garbage dish is the best. The real participant (the fifth person) is then asked to give his or her judgment. This study is done in both an individualistic and a collectivistic culture. Based on the results obtained using asch’s paradigm across cultures, what do you expect to happen in this case?
The scenario expected to happen in this case is:
A lot of participants from the individualistic culture would say that the garbage dish is the best one, but even more participants from the collectivistic culture would say the same.
In this case, the fifth person tends to collect the opinions of the four persons individually. This is in order to distinguish whether or not the dish would taste as to what their opinions elaborate.
Questioning whether an error of law was made at the trial court level is called a/an A. appeal. B. summary review. C. judicial review. D. deposition.
Answer:
its a. appeal actually
Explanation:
Which of the following is not one of the four indices of the Wechsler Intelligence Scale for Children?
perceptual reasoning
processing memory
verbal comprehension
working memory
processing memory
Four indexes of the Wechsler Intelligence Scale for ChildrenVerbal Understanding IndexVisual-Spatial IndexFluid Reasoning IndexWorking Memory IndexProcessing Speed Index. Further ExplanationWISC-V takes 45-65 minutes to manage. This results in a Full-Scale IQ (previously known as intelligence quotient or IQ score) that represents a child's general intellectual abilities. It also provides five primary index scores: Verbal Understanding Index, Visual-Spatial Index, Fluid Reasoning Index, Working Memory Index, and Processing Speed Index. These indices represent the ability of children in the discrete cognitive domain. Five additional composite scores can be derived from various combinations of primary or primary and secondary subtitles.
The original WISC (Wechsler, 1949) is an adaptation of some of the subjects that make up the Wechsler-Bellevue Intelligence Scale (Wechsler, 1939) but also displays several subtests specifically designed for it. Subtests are arranged on the Verbal and Performance scale and provide scores for Verbal IQ (VIQ), Performance IQ (PIQ), and Full-Scale IQ (FSIQ).
WISC is one of the tests in Wechsler's intelligence scale series. Subjects 16 and over were tested with the Wechsler Adult Intelligence Scale (WAIS), and children aged two years and six months to seven years and seven months were tested with the Wechsler Preschool and Primary Scale of Intelligence (WPPSI). There are several overlaps between tests: children aged 6 years 0 months to 7 years 7 months can complete WPPSI or WISC; children aged 16 can complete WISC-V or WAIS-IV. Different floor and ceiling effects can be achieved by using different tests, enabling a greater understanding of a child's abilities or deficits. This means that 16-year-old adolescents with intellectual disabilities can be tested using WISC-V so that doctors can see their knowledge base (lowest level).
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Details
Class: High School
Subject: Advanced Placement
Keyword: WISC, WAIS, indexes
All the listed option are part of the index of Wechsler Intelligence Scale for Children.
Wechsler Intelligence Scale for Children (WISC) is a test which measures children intellectual ability.
The scale are individually administered to children between the age of 6 & 16.The scale are also use to evaluate abilities of children with neurology disability, most especially learning disabilities.
The scales also establish cognitive indexes that impact children performance and this includes:
Verbal comprehensionPerceptual reasoningWorking memoryProcessing speedLearn more about WISC here
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Explain how a 19th century american pioneer would view "acquiring american indian land" as justifable.
country A has a birth rate of 10 per 1,000 and a death rate of 8 per 1,000. what is the doubling time for country A
You haven't said what the TIME PERIOD is during which these rates are observed.
Still, I feel like working on this one, so I'm going to assume that these birth and death rates refer to a period of ONE YEAR, and now I'll proceed to answer the question that I have invented.
If there are 10 births and 8 deaths per 1,000 EACH YEAR, then the population grows by exactly 2 per 1,000 people per year. That's a growth rate of 0.2% per year.
In 1 year, the population grows by (1.002). In ' X ' years, the population grows by a factor of (1.002)ˣ .
We want to know what ' x ' has to be in order for (1.002)ˣ = 2 .
Take the log of each side: x log(1.002) = log(2)
Divide each side by log(1.002) : x = log(2) / log(1.002)
x = (0.30103) / (0.0008677)
x = 346.92
Doubling time = 346.92 years
(At the end of 346 years, the population hasn't doubled yet, but they don't quite have to wait another full year. Mathematically it'll only be another 0.92 year = ~336 days.)
What is the difference between a service contract and a warranty?
A service contract is sometimes called an “extended warranty,” but service contracts are not warranties. A service contract can help you fix or maintain your product for a specific time — like a warranty. But, unlike a warranty, service contracts cost extra. ... Auto service contracts are different