what is the difference between positive and negative energy balance?
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A positive energy balance, in which energy intake exceeds expenditure causes weight gain, with 60–80 % of the resulting weight gain being attributable to body fat. In negative energy balance, when energy expenditure exceeds intake, the resulting loss in body mass is also accounted for by 60–80 % body fat.
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That means that the direction of the acceleration determines whether you will be adding to or subtracting from the velocity. Mathematically, a negative acceleration means you will subtract from the current value of the velocity, and a positive acceleration means you will add to the current value of the velocity.
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Reactions that have a negative ∆G release free energy and are called exergonic reactions. ... A negative ∆G means that the reactants, or initial state, have more free energy than the products, or final state. Exergonic reactions are also called spontaneous reactions, because they can occur without the addition of energy.
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Positive pressure rooms maintain a higher pressure inside the treated area than that of the surrounding environment. ... In contrast, a negative pressure room uses lower air pressure to allow outside air into the segregated environment.
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The difference between negative and positive feedback systems is that in negative feedback systems, the response reverses the original stimulus, but in positive feedback systems, the response enhances the original stimulus.
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During most processes, energy is exchanged between the system and the surroundings. If the system loses a certain amount of energy, that same amount of energy is gained by the surroundings. ... for an exothermic process is negative because the system is losing heat.
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The Difference Between Positive Gearing and Negative Gearing Positive geared property focuses instead of cash flow first, but also takes advantage of potential capital gains. ... The main difference is that a negative geared property loses you money each week while a positive one makes you money each week.
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Exothermic reactions have a potential energy difference between the products and reactants that is negative. Endothermic reactions have a potential energy difference between the products and reactants that is positive.
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Positive vs. The work that is done can be positive work or negative work depending on whether the force doing the work is directed opposite the object's motion or in the same direction as the object's motion. If the force and the displacement are in the same direction, then positive work is done on the object.
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ΔH is negative and ΔS is positive. This condition describes an exothermic process that involves an increase in system entropy. In this case, ΔG will be negative regardless of the temperature. Such a process is spontaneous at all temperatures.
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Instead, positive means you are adding something, and negative means you are taking something away. Reinforcement means you are increasing a behavior, and punishment means you are decreasing a behavior. ... All reinforcers (positive or negative) increase the likelihood of a behavioral response.
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What is the difference between positive and negative symptoms? -Positive: characterized by the presence of unusual perceptions, thoughts, or behaviors. Refers to the fact that symptoms are salient, added experiences (delusions and hallucinations). -Negative: characterized by losses or deficits in certain domains.
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Energy balance (calories in, calories out) does determine bodyweight. If we absorb more energy than we expend, we gain weight. If we absorb less energy than we expend, we lose weight.
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The difference between two positive integers can be either positive, negative or zero. ... The difference between a positive and a negative integer can be positive or negative. When you subtract a negative integer from a positive integer, the difference is always positive.
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To put it simply, positive ions are molecules that have lost one or more electrons whereas negative ions are actually oxygen atoms with extra-negatively-charged electrons.
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In the case of an exothermic reaction, the reactants are at a higher energy level as compared to the products, as shown below in the energy diagram. In other words, the products are more stable than the reactants. Overall Δ H ΔH ΔH for the reaction is negative, i.e., energy is released in the form of heat.
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A positive coefficient for a material means that its resistance increases with an increase in temperature. ... A negative coefficient for a material means that its resistance decreases with an increase in temperature.