Ultimate Guide to Power Efficiency

Power Efficiency Guide

The Power Efficiency Guide is a step-by-step guide showing the users how to create their own Home Power Plant. The E-book was created just to explain and help people out of the problem they face because of the lack of electricity. The guide was made to help the users use about 90% of the tools they use regularly in their various houses for the creation of a power generator, which will beneficial to them and their family. The device uses the endless power principle used to make the electric cars constantly charge themselves from the wheels when not being accelerated. It is a unique concept that can be used in every home. It was created in such a way that it would be a quick fix for the users' electricity problem. In other words, when the users purchase it during the day, the users will be able to make use of it before night falls. The process is so easy that even a little child can fix it up. The guide is such that comes at a cheap price and would help in the reduction of the amount the users might have to pay for regular electricity bill due to the number of appliances used at home. More here...

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Extra Energy Costs of Pregnancy

Hytten and Leitch's theoretical estimations of the overall energy costs of human pregnancy published more than 30 years ago have subsequently been experimentally validated as reasonable average values, and they have been adopted by many national and international bodies as a partial basis for developing recommended energy intakes in pregnancy. The costs can be divided into three main components the energy deposited as new tissue in the conceptus, the energy deposited as fat, and the energy required to maintain this new tissue.

Individual Variability in the Total Energy Costs of Pregnancy

Because of the marked differences between individuals in the different components of the energy costs of pregnancy (changes in BMR, body fat, and energy expended on physical activity), the total energy costs, and therefore energy requirements, are also variable. Studies of well-nourished women indicate that the total extra energy costs of pregnancy average 418 MJ (100 000 kcal), considerably higher than the estimates in Table 3, and there is a large range from 34 to 1200MJ (8000-287000kcal). These

The unique efficacy of dryneedling acupuncture in sports medicine

Dry needling therapy can be seen as a safe means of enhancing performance. Dry needling reduces mechanical and intrinsic stress in the musculosk-eletal system. This increases the efficiency of energy consumption and will therefore increase the endurance of the musculoskeletal system, improving physical performance. In addition, regular dry needling as a maintenance factor improves recovery and regeneration from the damage caused by training and competition, enabling the athlete to recover faster and continue training at a higher level, thereby also potentially increasing performance.

Observational Studies

In addition, there may be systematic bias in nutrient consumption estimates from self-reports, as the reporting of food intakes and portion sizes may depend on individual characteristics such as body mass, ethnicity, and age. For example, some have demonstrated more pronounced and substantial underreporting of total energy consumption among obese persons than among lean persons (Heitmann and Lissner, 1995 Schoeller et al., 1990). Such systematic bias, in conjunction with random measurement error and limited intake range, has the potential to greatly impact analytical epidemiological studies based on self-reported dietary habits. Cohort studies using objective (biomarker) measures of nutrient intake may have an important advantage in the avoidance of systematic bias, though important sources of bias (e.g., confounding) may remain.

Joints of Class I Levers

The mechanical advantage of this type of joint can be less or more than 1. If the joints are positioned properly, mechanical advantage is better otherwise, the muscles must deal with a lower mechanical advantage, more physical work, and higher energy consumption. These factors cause muscle fatigue to build up more rapidly, with more physical stress in the joints and a higher likelihood of injury such as disc herniation or bone fracture.

Introduction And Background

The conferees agree with the concern expressed by the Senate that the Department of Energy is not providing sufficient attention and resources to longer term basic science research which needs to be done to ultimately reduce cleanup costs. The current technology development program continues to favor near-term applied research efforts while failing to utilize the existing basic research infrastructure within the Department and the Office of Energy Research. As a result of this, the conferees direct that at least 50,000,000 of the technology development funding provided to the environmental management program in fiscal year 1996 be managed by the Office of Energy Research and used to develop a program that takes advantage of laboratory and university expertise. This funding is to be used to stimulate the required basic research, development and demonstration efforts to seek new and innovative cleanup methods to replace current conventional approaches which are often costly and...

Overview of nutrition and thermogenesis

Total energy expenditure can be broken down into three components (a) obligatory energy expenditure required for normal functioning of cells and organs (represented by the basal metabolic rate, which is defined as the amount of energy expended when an adult organism is awake but resting, not actively digesting food and at thermoneutrality) (b) physical activity (c) adaptive thermogenesis, which is physiologically regulated and is usually defined operationally as heat production in response to environmental factors including temperature and diet. Adaptive thermogenesis has received a lot of attention in the context of weight-control management strategies because it comprises a set of unconscious mechanisms that lead to the regulated dissipation of part of the energy of foods as heat, thus reducing energy efficiency and opposing weight gain.

Central and nutritional control of adaptive thermogenesis

Ingredients) to combat obesity (see references 47 and 48). On the one hand, there are a number of food components (e.g. caffeine, catechin polyphenols, ephedrine) known to stimulate the activity of the sympathoadrenergic system or the release of noradrenaline from the adrenals (e.g. capsaicin). On the other hand, certain nutrients foods - such as vitamin A, carotenoids, olive oil, medium-chain triacylglycerols, polyunsaturated fatty acids (PUFAs) and dietary protein - have been shown to have the potential to stimulate the expression of the UCPs in tissues. For instance, rats adapted to medium and high protein exposure have increased expression levels of UCP2 in liver and UCP1 in BAT, this correlating with a higher energy expenditure and oxygen consumption in the dark period and a lower feed energy efficiency.49 Replacement of habitual foods with others that may enhance energy expenditure may be a practical way to maintain a stable body weight or to help achieve weight loss. The...

Other Clinical Characteristics

In contrast to their poor dietary intake, these patients have a paradoxical enhanced interest in nutrition and cooking. They collect recipes, read nutrition textbooks, plan a career in nutrition or cooking, or find a job in a restaurant (usually wait-ressing). Anorexic patients enjoy cooking and feeding the rest of the family. They know the precise energy content of all usual food and use their knowledge to select low-energy items.

Other food and food components of interest

Activate BAT function, enhance energy expenditure and suppress body fat accumulation upon long-term treatment (see references 175 and 176). Capsaicin-rich foods (e.g. chilli peppers and red peppers) have been shown to stimulate fat oxidation and thermogenesis in humans,177,178 although the effects appear to be weaker in obese subjects.179 Non-pungent capsaicin analogs found in some pepper varieties, which may be more suitable than capsaicin for functional food and nutraceutical developments, also increase thermogenesis and energy consumption in humans and mice.175176

Micronutrients and Physical Activity

Osteoporosis is now widely recognized as a problem for both men and, more especially, women, and an increased bone mineral content is one of the benefits of participation in an exercise program. Regular exercise results in increased mineralization of those bones subjected to stress and an increased peak bone mass may delay the onset of osteoporotic fractures exercise may also delay the rate of bone loss. Estrogen plays an important role in the maintenance of bone mass in women, and prolonged strenuous activity may result in low estrogen levels, causing bone loss. Many very active women also have a low body fat content and may also have low energy (and calcium) intakes in spite of their high activity levels. All of these factors are a threat to bone health. The loss of bone in these women may result in an increased predisposition to stress fractures and other skeletal injury and must also raise concerns about bone health in later life. It should be emphasized, however, that this...

Intervention Studies

Several intervention studies suggest that diets high in fiber may assist in weight loss (Birketvedt et al., 2000 Eliasson et al., 1992 Rigaud et al., 1990 Rossner et al., 1987 Ryttig et al., 1989), although other studies have not found this effect (Astrup et al., 1990 Baron et al., 1986). For example, Birketvedt and coworkers (2000) conducted a study in which 53 moderately overweight females consumed a reduced energy diet (1,200 kcal d) with or without a fiber supplement, which was 6 g d for 8 weeks and then 4 g d thereafter. The women on the fiber-supplemented diets lost 8.0 kg versus 5.8 kg for the placebo group (p < 0.05). High fiber diets are characterized by a very low energy density compared to diets high in fat, and a greater volume must be consumed in order to reach a certain energy level (Duncan et al., 1983 Tremblay et al., 1991), which again could result in cessation of eating. The issue of whether fiber has implications in the modulation of appetite has been reviewed...

Children and Adolescents Ages 1 Through 18 Years Method Used to Set the AI

The AI for Total Fiber for children and adolescents is based on the data cited for adults, which showed that 14 g 1,000 kcal reduced the risk of CHD (see Adults Ages 19 Years and Older). The AI (14 g 1,000 kcal X median energy intake kcal 1,000 kcal d ) is then set for each age and gender group. The median energy intake for 1- to 3-year-old children is 1,372 kcal d (Appendix Table E-1). Thus, 19 g d (14 X 1.37) of total fiber would be recommended for this age group. It should be kept in mind that recommendations for fiber intake are based on a certain amount of total fiber as a function of energy intake. This means that those who consume less than the median energy intake of a particular category need less fiber than the recommendation (which is based on the mean energy intake). For example, the median energy intake for 1- to 3-year-old children is 1,372 kcal d and the recommendation for total fiber is 19 g d. However, 1-year-old children not meeting this energy consumption level will...

Adults Ages 19 Years and Older Methods Used to Set the AI

By definition, the AI is expected to meet or exceed the EAR or the average amount needed to maintain a defined nutritional state or criterion of adequacy in essentially all members of a specific healthy population. Thus, where data are insufficient to be used as the basis of an AI, Total Fiber at the recommended levels may also help to ameliorate constipation and diverticular disease, provide fuel for colonic cells, attenuate blood glucose and lipid concentrations, and provide a source of nutrient-rich, low energy-dense foods that could contribute to satiety.

Rationale For Developing A Science Plan For The Emsp

DOE has begun to produce related documents. In July 1996, the Department published the first part of its strategic plan for national laboratories.5 In August 1996, the Department released its strategic plan for energy research.6 As mentioned in Chapter 2, the new Assistant Secretary for Environmental Management has begun an ambitious program to develop a strategic plan related to his 10-year vision.7 The Department also has produced a report that details its plans for land and infrastructure use at 20 DOE sites.8 Another congressionally requested 6DOE, 1996, Energy Research Strategic Plan, DOE ER-0656 (Washington, D.C. DOE).

Broadening The Investigator Community

The committee noted in its Initial Assessment Report that the long-term success and effectiveness of the EMSP will depend to a large extent on the degree to which the program is able to attract high-quality researchers. In the committee's opinion, EMSP should not be viewed as just another program to support the established environmental research community. Rather, the program should strive to attract creative investigators who do not now work on the Department's problems. This will require significant outreach to the scientific and technical communities, particularly to those not currently engaged in work related to energy research or environmental management. Many of the suggestions offered in the previous section on program coordination will be of benefit to the Department in its efforts to attract new investigators to the EMSP. DOE Energy Research Programs

Urinary Excretion of NMethyl Nicotinamide and Methyl Pyridone Carboxamide

The depletion repletion studies of Horwitt et al. (1956) and others have suggested, on the basis of restoration of urinary excretion of N1 -methyl nicotinamide, that the average niacin requirement is 5.5 mg per 1,000 kcal (1.3 mg per MJ). Allowing for individual variation, reference intakes (see Table 8.2) are set at 6.6 mg niacin equivalents (preformed niacin + 1 60 of the dietary tryptophan) per 1,000 kcal (1.6mgperMJ). Even when energy intakes are very low, it must be assumed that energy expenditure will not fall below 2,000 kcal, and this is the basis for the calculation of reference intakes for subjects with low energy intakes.

Fuel Used During Exercise

Before discussing the various exercise guidelines in the following chapters, here is an overview of the energy systems used during exercise. Your body uses the macronutrients you eat (CHO, fats, and proteins) to make a chemical called adenosine triphosphate (ATP). You need ATP to contract your muscles during exercise. ATP can be made two ways. One way makes ATP without using oxygen and is called the anaerobic energy system. The second way requires oxygen to make ATP and is called the aerobic energy system. Both of these systems (described below) are required during activity but, depending on the activity, there is a greater reliance on one system over the other. During most types of exercise, both the aerobic and anaerobic energy systems are involved. The amount of energy from each system depends on the duration and intensity of the exercise. Figure 4-3 illustrates the percentage of ATP each energy system contributes during exercise of various durations. As shown, when exercise...

Single individualan EMSP Program Directorwho should have authority responsibility and accountability for meeting the

The Program Director must have the support of both the Director of the Office of Energy Research and the Assistant Secretary for Environmental Management to utilize the considerable resources of both organizations for the benefit of the EMSP. At the same time, the Program Director must be able to balance the interests of ER (to support high-quality basic research) and EM (to support research that is relevant to the cleanup mission) and must have the authority to resolve conflicts when these interests come into competition. In the committee's view, the Program Director can be effective in achieving and sustaining this balance only if she or he is functionally independent of both EM and ER. To allow for such independence, the committee recommends that the EMSP Program Director report to the Under Secretary for Energy.

Pore Diameter and Controlled Release of Poorly Soluble Drugs

Particle size morphology may also significantly affect drug release rate 25 , and several protocols have been published on how to modify OMS particle size morphology 26, 27 . However, capability to control pore diameter may offer a better way of designing release rate. Drugs contained in OMS pores, being non-crystalline, can exhibit dissolution rates, and concentrations for absorption, not achievable by dissolution of low-energy crystalline forms. Stated otherwise, the release of poorly soluble drugs from OMS is associated with supersaturation. From a dosage form design perspective, this poses an interesting challenge based on the following possibilities

Dietary Mg Deficiency

Severe Mg deficiency is very rare, whereas marginal Mg deficiency is common in industrialized countries. Low dietary Mg intake may result from a low energy intake (reduction of energy output necessary for physical activity and thermoregulation, and thus of energy input) and or from low Mg density of the diet (i.e., refined and or processed foods). Moreover, in industrialized countries, diets are rich in animal source foods and low in vegetable foods. This leads to a dietary net acid load and thus a negative effect on Mg balance. In fact, animal source foods provide predominantly acid precursors (sulphur-containing amino acids), whereas fruits and vegetables have substantial amounts of base precursor (organic acids plus potassium salts). Acidosis increases Mg urinary excretion by decreasing Mg reabsorption in the loop of Henle and the distal tubule, and potassium depletion impairs Mg reabsorption. Mg deficiency treatment simply requires oral nutritional physiological Mg supplementation.

Food Availability and Diet Quality

Low energy intake is associated with growth retardation and often related to a poor quality diet. Moreover, children can become anorectic when fed monotonous diets, and this can be compounded when superimposed on frequent and repeated bouts of infections. A high-carbohydrate, low-fat diet with a low energy density also precipitates undernutrition in children. Protein deficiency per se is not the major cause of growth retardation, but little is known about the specific effects of essential fatty acid deficiencies on growth. Micronutrient deficiencies, particularly zinc deficiency, cause growth retardation. Zinc supplementation can increase body weight and length height, but the effect is modest compared with the growth deficit usually observed in growth-faltered children. Children in poor communities are likely to have multiple micronutrient deficiencies, and the combined effect of these coupled with inadequate fat and energy intake will affect growth patterns.

Mineral Tissue Analysis

I commonly see a deficiency of zinc in individuals who have low energy. Zinc is needed to make insulin, a factor needed for carbohydrate metabolism. Copper is often elevated in individuals with a low zinc level. When copper is elevated in females, I also see high estrogen levels with associated symptoms of PMS heavy menstrual flow and tender breast tissue.

Maintenance of Body Weight

A first issue is whether a certain macronutrient distribution interferes with sufficient intake of total energy, that is, sufficient energy to maintain a healthy weight. Sonko and coworkers (1994) concluded that an intake of 15 percent fat was too low to maintain body weight in women, whereas an intake of 18 percent fat was shown to be adequate even with a high level of physical activity (Jequier, 1999). Moreover, some populations, such as those in Asia, have habitual very low fat intakes (about 10 percent of total energy) and apparently maintain adequate health (Weisburger, 1988). Whether these low fat intakes and consequent low energy consumptions have contributed to a historically small stature in these populations is uncertain.

Influence of Exercise Training on Energy Balance

Not all athletes are able to correctly identify goals that are suitable for their sport and for their individual make-up. This can lead to various problems, including excessive restriction of energy intake in an attempt to achieve an unrealistically low body mass. If energy intake is too low, and especially if carbohydrate intake is inadequate, it may not be possible to sustain the training load without the risk of chronic fatigue, injury and illness. If an energy deficit is incurred, it may lead to changes in metabolic and hormonal function, which affect performance, growth and health. One outcome of low energy availability in female athletes is a disturbance of reproductive function and menstrual regularity. Other problems are likely to occur in male athletes. There is a real danger that the focus on achieving a specific body mass and body composition, may become more important than achieving success in competition. athletes who are failing to achieve an adequate carbohydrate...

Recommended Dietary Allowances

Quantifying thiamin requirements is based on a variety of biochemical data. Early results indicated that a thiamin intake of 0.4mg day on a low-energy intake was close to the absolute minimum requirement. Epidemiological evidence suggested that beriberi occurred when the intake of thiamin was < 0.2 mg thiamin per 4.2 MJ (1000 kcal) however, when 0.188 mg 4.2MJ was fed to sedentary elderly men for 2 years, no indisputable alteration in clinical state occurred. Thiamin requirements are strongly influenced by physical activity and at higher energy intakes with liquid formula diets containing 11.76 and 15.12 MJ (2800 and 3600 kcal), there was good agreement between thiamin excretion and ETKL stimulation to interpret thiamin status at different levels of thiamin intake. Increasing intake from 0.2 to 0.23 mg 4.2 MJ moved first the urinary excretion and then ETKL activation out of the deficient range. Both measurements were normalized at intakes of 0.3mg 4.2MJ, and to allow for variance...

Protein LuxP is an important mechanism for communication between bacteria quorum sensing even across species barriers

Boron neutron capture therapy (BNCT) A form of tumor therapy utilizes the fact that low-energy irradiation of boron generates high-energy alpha particles (l0B(n. )7Li) that can destroy cells in its immediate ieinity. Enrichment of tumor targets allows some degree of specificity (Gibson et at., 2001),

Dietary Management

Current ideas on a reasonable reducing diet are that it should contain at least 100 g carbohydrate to prevent glycogen depletion and ketosis. High-carbohydrate diets are composed of complex carbohydrates and are thus of low energy density, which may aid management of hunger. Since high-carbohydrate diets are low in fat, they have the theoretical advantage of directly reducing the risk of cardiovascular disease. The energetic efficiency with which carbohydrate is converted and stored as fat is lower than that of dietary fat, providing a further advantage. Protein intake must be adequate to maintain lean body mass. Although there is an inevitable fall with weight loss, 0.8 g per kg per day + 1.75 g per 100 calorie deficit of protein (about 44 g daily for women and 56 g daily for men) should be consumed, and fat restricted to less than 30 of total energy. The diet should contain recommended daily intakes of vitamins, minerals, and electrolytes, if necessary by supplementation 20-30 g...

Exercise and Physical Activity

The energy cost of activity and exercise can be expressed as a multiple of resting metabolic rate, termed a MET the term 'physical activity level' (PAL) represents the total daily energy expenditure divided by the resting energy expenditure it typically averages 1.5. The energy costs of walking are about 2.0 MET - for a 70 kg individual this is about 0.5 MJh-1 (120 kcal h-1) - while gentle running costs about 8 MET or 2 MJh-1 (480 kcal h-1). A moderately fit individual would only be able to maintain a level of exercise of 7 MET for about 30 min, representing an additional energy expenditure of about 1.5 MJ (360 kcal) resulting, if energy intake were maintained, in a weight loss of about 0.3 kg per week.

Traumatic Hip Instability

Traumatic Brain Injury Mri

The diagnosis of a traumatic hip injury is obvious in severe cases of dislocation. However, more subtle traumatic subluxation of the hip can occur with seemingly minimal trauma. The clinician should have a high index of suspicion for intraarticular injury even after minor trauma. A careful physical examination should be performed to differentiate intraarticular versus extraarticular pathology. Patients may also have concommitent soft tissue injuries such as chondral injuries, labral tears, and capsular injuries. Injury patterns depend upon the age of the patient and the competancy of the surrounding soft tissue. The most common mechanism for hip dislocations is a dashboard motor vehicle injury (high energy). However, in athletic competition, a forward fall on the knee with a flexed hip or a blow from behind while down on all four limbs can also produce these patterns (more low energy) 15 . Most hip dislocations sustained during athletic activities are pure dislocations with either no...

Behavior Modification

The components of a typical behavior modification programme are shown in Table 3. For each area, patients need to learn the underlying concepts, recognize the importance to their own situation, and practise strategies to change their behavior. The results of a large number of programs have been published, either as audit outcome or as comparative trials. Programs vary in duration from 12 weeks to 52 weeks (there has been a trend since the 1970s to lengthen treatment time). Drop-out rates are clearly biased by selection procedures, but are typically 10-20 . Weight loss during treatment is typically 10-15 of initial weight, at a rate of about 0.5 kg per week. In order to strengthen the impact of the intervention on weight loss, many programs have included a period of time on very low-energy or liquid-based diets. This approach of a complete withdrawal for a time from established (abnormal) eating habits can be usefully integrated into a model of behavior change, and is well and...

DLW and Other Noninvasive Energy Expenditure Measurements

The energy requirement of an individual is the intake from food that will balance expenditure when an individual has a body size and composition, and level of physical activity, consistent with long-term good health and that will allow for the maintenance of an economically necessary and socially desirable level of physical activity. In principle, these measurements could be obtained from the measurement of food intake or by factorial methods summing estimates of resting metabolic rate with the energy costs of activity. In practice, neither of these approaches is satisfactory food

Evidence Considered to Determine the Estimated Energy Requirement

Basal metabolism increases during pregnancy due to the metabolic contribution of the uterus and fetus and increased work of the heart and lungs. The increase in basal metabolism is one of the major components of the increased energy requirements during pregnancy (Hytten, 1991a). Variation in energy expenditure between individuals is largely due to differences in FFM, which in pregnancy is comprised of low energy-requiring expanded blood volume, high energy-requiring fetal and uterine tissues, and moderate energy-requiring skeletal muscle mass (Hytten, 1991a). In late pregnancy, approximately one-half the increment in energy expenditure can be attributed to the fetus (Hytten, 1991a). The fetus uses about 8 ml O2 kg body weight min or 56 kcal kg body weight d for a 3-kg fetus, this would be equivalent to 168 kcal d (Sparks et al., 1980). FM, a low energy-requiring tissue, contributes to the variation in energy expenditure, but to a much lesser extent than FFM, which...

Recognizing Causative Factors of Undernutrition

Reuptake inhibitors, tricyclics, or monoamine oxidase inhibitors (MAOI). Mirtazapine belongs to the piperazino-azepine group of compounds. Available evidence suggests that Mirtazapine has an additional orexigenic and anti-emetic effect, which may increase energy consumption. Electroconvulsive therapy is a viable option in depressed persons with severe anorexia. Evidence exists in support of the efficacy of this treatment modality in restoring appetite following failure of pharmacological agents.

Requirements and Signs of Deficiency

For dietary reference values, the criterion of restoration of urinary excretion of NMN during controlled human depletion-repletion studies has been selected, and on this basis, the average adult requirement has been estimated as 5.5 mg (45 mmol) of niacin equivalents per 1000 kcal (4200 kJ). Adding a 20 allowance for individual variation this needs to be increased to 6.6 mg (54 mmol) per 1000 kcal, (4200 kJ), which is the current reference nutrient intake (UK). Niacin requirements were, by convention, expressed as a ratio to energy expenditure. For subjects with very low energy intakes, the daily intake of niacin equivalents should not fall below 13 mg, however. If dietary protein levels and quality are high, it is possible for tryptophan alone to provide the daily requirement for niacin equivalents. Dietary niacin deficiency is now rare in most Western countries.

Cellular Respiration and Adenosine Triphosphate

In the first stages, glucose and other metabolic fuels are oxidized, linked to the chemical reduction of coenzymes (nicotinamide adenine dinucelotide (NAD+), flavin adenine dinucleotide (FAD), and flavin mononucleotide (FMN)). In the final stage, ATP is synthesized from ADP and phosphate via a common pathway using energy released from the oxidation and recycling of the reduced coenzymes (Table 1). Thus, the oxidation of metabolic fuels is tightly coupled to energy consumption and the production of ADP from ATP in energy-consuming processes (Figure 2).

The Physics of Radioactivity

The more important responsibility of an atomic energy agency would be to devise methods whereby fissionable material would be allocated to serve the peaceful pursuits of mankind in agriculture, medicine and other peaceful activities. A special purpose would be to provide abundant electrical energy in the power-starved areas of the world. Eisenhower's support of an open policy led to the establishment of the International Atomic Energy Agency (IAEA) in 1957. The same year that Eisenhower gave his speech (1953), an armistice was signed ending the Korean War the structure of DNA was published by Watson and Crick Edmund Hilary and Tensing reached the summit of Mount Everest and the Society of Nuclear Medicine was founded in the United States. Those scientists who produced the atomic bombs in the United States during World War II predicted that diffusion around the world of their secret knowledge was inevitable. In March, 1963, President John Kennedy said I am haunted by the feeling that...

The calorie bank analogy

A good analogy is to look at your body like a living calorie bank and caloric energy like money. You store calories in your body the way you store money in a bank. You can make energy deposits and withdrawals from your body the way you would make money deposits and withdrawals from the bank, depending on how high your energy costs are. When your energy costs are equal to the calories you consume, then all the calories you consume are burned immediately and no deposit or withdrawal of calories takes place - your balance stays the same. When your energy costs are greater than the number of calories ingested, you will make an energy withdrawal from your calorie bank and your body fat balance will decrease. When your energy costs are less than the

Word from the Author

Over the years, I've learned to incorporate into my life some basic concepts that have helped me immensely, and I've learned thousands of simple, time- and energy-saving tips that make a big difference in the quality of my life. Talking to others with chronic illnesses and disabilities has taught me a lot about survival and the human spirit and how strong and resilient people can be. We may not have a choice about having an illness, but we do have a choice in how we react to it.

Issues Associated with Measurement of Dietary Intake

Social desirability bias Social desirability bias can influence dietary measures as respondents strive to report what they think is required not what was actually consumed, for example, reporting less alcohol consumption than is the case or greater consumption of foods with perceived health benefits such as fish, fruit, or vegetables. This is likely to be the cause of mis-reporting, under-reporting, or low energy reporting, which occurs in certain respondents. It is possible to predict how much energy a respondent should report, as this is the amount required to maintain a stable weight. (Weight will be either gained or lost if more or less energy is consumed than required.) As energy intake should equate to energy expenditure, expenditure effectively measures intake. Techniques for measurement of energy expenditure such as whole body calorimetry and doubly labeled water can be used. Using these techniques those individuals classified as low energy reporters are likely to be older,...

Does shortness of breath mean Im worse

The space in the chest wall, a second signal is sent to relax the muscles. The brainstem makes its decisions regarding the rate and depth of breathing on the basis of information it receives from the body. This information includes the level of oxygen in the air, the level of oxygen in the blood, the level of expired gas (carbon dioxide) in the blood, and the acidity or alkalinity of the blood. The carbon dioxide level is the single most critical factor for controlling the rate and depth of breathing because the carbon dioxide level reflects the rate of energy consumption.

The contribution of reduced thermogenesis and fat oxidation to obesity and its metabolic complications

A low capacity to oxidize fat may also contribute to obesity, particularly when dietary fat is in large supply. In fact, human epidemiological studies point to a reduced rate of fat oxidation as a risk marker for body weight gain, independent of low energy expenditure.33'34 Moreover, formerly obese individuals of normal weight have been shown to have a lower rate of fat oxidation compared with control, never-obese subjects.3536

Skilled Behaviour And Its Classification

Complex tasks, but also outperforms the non-preferred hand at such tasks (Flowers, 1975). Before reviewing the literature on the influence of skill on preference and performance behaviours, one should perhaps define skill. At a simplistic level, skill can be used to denote either an act or a task, or as an indicator of the quality of performance (Magill, 1985). Skills that are acts or tasks are relevant to the present discussion, and can be defined as those acts or tasks that require movement and must be learned in order to be properly performed (Magill, 1985, p. 5). For the current review, Schmidt's (1991) definition will be used because it provides a much narrower definition of skill. He suggests that skills generally involve achieving a well-defined environmental goal by (1) maximizing the achievement certainty (2) minimizing the physical and mental energy costs of performance and (3) minimizing the time used (Schmidt, 1991 p. 5).

Recommended Dietary Allowance

This approach differs somewhat from that used by the World Health Organization, Food and Agriculture Organization, and International Atomic Energy Agency (WHO FAO IAEA) Expert Consultation on Trace Elements in Human Nutrition and Health (WHO, 1996). That publication uses the term basal requirement to indicate the level of intake needed to prevent pathologically relevant and clinically detectable signs of a dietary inadequacy. The term normative requirement indicates the level of intake sufficient to maintain a desirable body store, or reserve. In developing an RDA (and Adequate Intake AI , see below), emphasis is placed instead on the reasons underlying the choice of the criterion of nutritional adequacy used to establish the requirement. It is not designated as basal or normative.

Systems issues and barriers

At the patient level, stigma, resistance to diagnosis, and health beliefs that tend to emphasize somatic presentations act as barriers to recognition and treatment of behavioral disorders in the primary care setting. In many cases, the illness itself causes feelings of pessimism, nihilism, and low energy that interfere with help-seeking behaviors or result in unemployment or loss of insurance coverage. For primary care providers, limited time as well as limitations in background, training, and the capacity and interest to reflect introspectively may also act as barriers to appropriate treatment for behavioral health disorders in primary care settings. There is wide variation in how primary care practices are organized to care for people who have behavioral health problems, how they allocate resources in this regard, and how they are linked to behavioral health specialty care. Often there is

Health Effects of Carbohydrates

Foods high in sugars or GI are highly palatable and it has been suggested that they create a potential risk for energy overconsumption and weight gain. However, there is no evidence to support this claim or confirm the role of GI in body weight regulation. Foods high in sugar have high energy density and thus decreasing their consumption can assist in weight reduction. On the contrary, foods rich in NSP are bulky and have less energy density and as a result induce greater satiety when ingested. It follows that diets rich in NSP may be useful for obesity prevention, since they prevent energy overconsump-tion. However, there is no evidence to indicate that increasing the carbohydrate content of a low-energy diet facilitates weight loss.

Is fatigue a biologically appropriate response to cancer and therapy

In the absence of overt physical exertion, fatigue also appears to be an inappropriate response. However, in parallel with the previous studies into the mechanisms of nausea and vomiting, an examination of the ways in which an animal responds to infection suggests that it may be appropriate. Thus, the symptoms commonly associated with febrile infectious diseases such as lethargy, increased sleep, reduced plasma iron, changes in plasma lipids, depression, anorexia, and reduced grooming are all components of an organized response to defend the body against the pathogen (Weinberg 1984 Kluger 1991 Ewald 1994 Long 1996). This response is called 'illness behaviour' or 'sickness syndrome' and all components of the response play some role in combating the infection (Hart 1988). For example, the reduction in plasma iron retards bacterial growth (Long 1996). This cluster of behavioural responses is aimed at reducing energy consumption. The associated sensations can be argued to drive the animal...

Adverse Effects of Dietary Fiber Mineral Bioavailability

Studies report no differences in magnesium balance with intake of certain Dietary Fibers (Behall et al., 1987 Hallfrisch et al., 1987 Spencer et al., 1991). Astrup and coworkers (1990) showed no effect of the addition of 30 g d of plant fiber to a very low energy diet on plasma concentrations of magnesium. There was no effect on the apparent absorption of magnesium after the provision of 15 g d of citrus pectin (Sandberg et al., 1983). Magnesium balance was not significantly altered with the consumption of 16 g d of cellulose (Slavin and Marlett, 1980).

Dietary Fiber Functional Fiber and Colon Health

Constipation, Laxation, and the Contribution of Fiber to Fecal Weight. Consumption of certain Dietary and Functional Fibers is known to improve laxation and ameliorate constipation (Burkitt et al., 1972 Cummings et al., 1978 Kelsay et al., 1978 Lupton et al., 1993). In most reports there is a strong positive correlation between intake of Dietary Fiber and daily fecal weight (Birkett et al., 1997). Also, Dietary Fiber intake is usually negatively correlated with transit time (Birkett et al., 1997). Although what constitutes constipation is variously defined, diets that increase the number of bowel movements per day, improve the ease with which a stool is passed, or increase fecal bulk are considered to be of benefit. For example, in a weight-loss study, obese individuals were put on a very low energy diet with or without 30 g d of isolated plant fiber (Astrup et al., 1990). Those receiving the fiber supplement had a higher number of bowel movements per day (1.0) compared to those not...

Dietary protein and amino acids

How can a higher protein intake affect body composition Layman et al.132 reported that substituting dietary protein for carbohydrate in energy-restricted diets brought about endocrine changes (maintenance of thyroid hormones T3 and T4 and reduced insulin response to a test meal) consistent with higher rates of lipolysis. In addition, an increased amount of dietary protein has been shown to reduce nitrogen losses associated with very low energy diets and to sustain muscle protein anabolism during catabolic conditions (reviewed in reference 78). Hence, the changes in body composition associated with the higher protein diets may be associated with either targeting of body fat or sparing of muscle protein or both.132

Theoretical Total Metabolic Costs of Pregnancy

Compared to many other mammals, humans have a relatively small and usually single infant, which develops during a long gestation period. The energy stress to the mother is therefore low per unit time. The 49 MJ of energy deposited as the products of conception represents only 4 or 5 days of food intake for the mother. Humans also differ from most other mammals because their large fat stores can help meet some of these costs. The theoretical total metabolic costs (i.e., due to extra tissue and increased metabolism) of pregnancy are approximately 335 MJ (80 000 kcal), or 1.25MJ day (300kcal). This value does not make any allowance for changes (increases or decreases) in energy expended on physical activity. It is assumed that the majority of the energy costs of human pregnancy are met by behavioral adjustments in energy metabolism rather than increased energy intake. This assumption has formed the basis for energy intake recommendations, some of which are summarized in Table 3. It...

Behavioral Changes in Physical Activity

It has frequently been assumed that a behavioral reduction in the energy expended on physical activity helps to counteract the increases in expenditure due to increased body weight, and in some women this leads to saving of energy that largely meets the costs of pregnancy. However, although relatively small changes in activity patterns can potentially result in significant energy savings, there is little evidence that this occurs to a large extent. A possible reason for this is that affluent women are habitually so sedentary that there is little scope for further reduction. In contrast, in developing countries habitual levels of physical activity are high and there is therefore more potential for behavioral reductions. However, many women are likely to be unable to reduce their physical activity because of the constraints imposed by a subsistence livelihood, where farm work is obligatory for survival. This topic has been one of considerable debate in recent years, particularly since...

Assessment of Nutrition in Children Anthropometry

After the first year of life, children usually follow very predictable gains in weight and height over time. Growth as gain in weight and height remains, with activity, the aspect of energy consumption that the body can reduce if energy intakes are inadequate for all needs. The wide range of normal weights for age in a population means that a single weight in an individual child is not a good indicator of over or under nutrition. Nevertheless, weight change over time is the most widely used parameter for judging nutritional status. Failure to gain weight at the expected rate is often the first evidence of declining nutritional status. Where inadequate nutrition is prolonged, linear growth faltering also occurs. Growth curves showing weights and heights plotted against age with trajectories for mean and standard deviation or centile distributions of a population are the basis of growth assessment in childhood. In infancy, crossing the centiles upwards or downwards is quite common as...

Hormonal Response to Injury Infection and Cancer

The sick euthyroid state, in which total tri-iodothyronine (T3) concentrations are reduced in severely injured and infected patients, is common. This is likely a normal response to conserve energy in the injured person as the body's ability to convert the stored form of a thyroid hormone (thyroxine (T4)) into the active form of thyroid hormone, T3, becomes impaired. T4 is converted to an inactive thyroid hormone known as reverse-T3 hormone (rT3). This event may have evolved as a necessary energy-saving response during a severe injury or illness to reduce the known contribution of T3 to resting energy expenditure. The low T3 syndrome is an adaptive way to reduce the normal day-today effect of T3 on resting energy expenditure. This process can occur in the aggressive cancers,

The use of Ultra Short Pulse Lasers USPLs in dentistry

Considering the strictly short pulse durations and the low energy per pulse in USPLs systems, it is possible to infer that the ablation process is practically not dependent on the wavelength or the composition and absorption characteristics of the tissue (Perry et al., 1999). Also, the removal of ablated material is faster than the heat propagation on the tissue, i.e., the pulse length is lower than the heat conduction time of target tissue (Perry et al., 1999) in this way, there is no transmission of heat to pulp or surrounding tissues, for example, as well, no thermal damages to the irradiated tissues. Other advantage of using USPLs in dentistry is that these systems can remove any kind of restorative material, including amalgam (Freitas et al., 2010), which is not possible using other systems due to the reflection of light or overheating of the material.

What Is Depression

At the heart of clinical depression is a loss of pleasure in activities that used to be fun or exciting. Also, people often have feelings of sadness, hopelessness, and pessimism. These symptoms are accompanied by a wide variety of physical symptoms such as difficulty sleeping, poor concentration and memory, low energy, and change in appetite. Not everyone will experience all of these physical symptoms. For example, someone may have problems with their sleep and feel low in energy but their appetite may remain normal. Depression also changes the way a person thinks about the world. For example, it is not uncommon for people who are depressed to feel helpless and hopeless about their life situation, and, at times, people may feel that suicide is a rational alternative to their current situation (see Chapter 8). With time, it may be difficult to remember that depression is treatable.

Summary

The Department of Energy's (DOE's) Environmental Management Science Program (EMSP) was created by the 104th Congress to stimulate basic research and technology development for cleanup of the nation's nuclear weapons complex. The EMSP is a mission-directed basic research program and is designed to support a much larger technology development program within the Office of Environmental Management (EM). The program is managed jointly by EM and the Office of Energy Research (ER). Unlike other federal programs that address environmental problems, the EMSP is explicitly focused on EM's problems and has the specific objective to improve the effectiveness of the cleanup effort over the long term.

Other therapies

Hormone therapy plays a central role in the treatment of a number of common cancers, for example breast and prostate. Considering that this form of therapy is increasingly being given as an adjuvant and preventative agent, it is desirable that they are well tolerated and convenient. It is startling that little is known about the experiences of daily life and life quality in the men and women who receive these therapies. However, there is growing recognition that clinicians tend to underestimate the impact of side-effects of hormone therapy (Denton 1996). Research highlights that there are discrepancies between the perceptions patients and clinicians hold in terms of the level of distress caused by side-effects, and the impact such distress has on increasing the likelihood that patients will seek a change in therapy (Leonard et al. 1996). Lethargy and lack of energy feature as one of the most troublesome symptoms in this respect (Leonard et al. 1996). The Working Group on Living with...

The Small Intestine

Carbohydrate foods would have ensured that intact indigestible cell wall polysaccharides were present throughout the upper alimentary tract during digestion. This, according to Trowell and others, favored slow absorption of glucose, which in turn placed less strain upon the ability of the pancreas to maintain glucose homeostasis. There is no doubt that type 2 diabetes has become more common in Western countries as prosperity, and an excess of energy consumption over expenditure, has grown. It is not established that rapid absorption of glucose due to consumption of refined starches is a primary cause of diabetes, but the control of glucose assimilation is certainly a key factor in its management. Cell wall polysaccharides influence the digestion and absorption of carbohydrates in a variety of ways, and are a major determinant of the 'glycemic index,' which is essentially a quantitative expression of the quantity of glucose appearing in the bloodstream after ingestion of a...

Nutritional Findings

A key feature of bulimia nervosa is the extreme dietary restraint that is exhibited in between episodes of binge eating. Such behavior has been described as all or nothing, so that on a good day the sufferer may describe consuming a very low-energy diet, whereas a bad day will consist of several episodes of uncontrolled eating. This will be accompanied by the purging behaviors previously described. explanation for this finding is that bingeing and purging may alter energy efficiency. These findings have implications for nutritional management, particularly in relation to the prescription of energy intakes.

Patient Education

Lives and how it affects their family and friendships. To manage their disorder, they must learn to be more assertive in declining extra tasks and invitations. For example, a holiday tradition that includes eight extra family members visiting as house guests may need to be changed a better plan may be meeting daily for a few hours at a restaurant or other location outside the home over two to four days. In well-managed FM, fatigue control becomes an important strategy. This means on occasion limiting chores to those that are most essential or deciding on just one of several possible fun activities. Energy-saving techniques can include simple changes such as sitting during showering or while brushing teeth. Many with FM have great difficulty with activities that require them to hold their arms at shoulder height or higher for long periods. Therefore, a woman with FM might need to opt for a hairstyle that doesn't require a great deal of hair drying and styling.

Future Trends

Existing natural antimicrobials and their use. Other trends will include modernization and redesign of existing slaughter plants, construction of new facilities with improved air flow and product personnel traffic control. Processing methods will continue to evolve and become more automated, energy efficient, resulting in decreased levels of carcass handling by plant employees, and in products of more consistent microbial quality.

Diagnoses

N. endorsed the following DSM-IV symptoms of dysthymia hypersomnia, low energy and fatigue, low self-esteem, poor concentration, and feelings of hopelessness, in addition to depressed mood for most of the day for more days than not for 5 years. She met seven of nine criteria for BPD (five or more are required for diagnosis) at the time of referral frantic efforts to avoid real or imagined abandonment a pattern of unstable and intense interpersonal relationships (with mother, sisters, boyfriend) potentially self-damaging impulsivity (substance abuse, spending, reckless driving) recurrent suicidal attempts, gestures, or threats affective instability due to marked reactivity of mood chronic feelings of emptiness and inappropriate, intense anger that is difficult to regulate. She endorsed several symptoms of sedative-hypnotic abuse recurrent use resulting in failure to fulfill major role obligations at work and with family recurrent use in physically hazardous...

Television

Very severe childhood obesity (particularly if accompanied by a life-threatening complication such as Pickwickian syndrome) may require more dramatic interference than described previously. Very low-energy diets have been used quite successfully for short-term weight reduction. However, such diets are intrusive, carry some risk for nutrition and growth, and unacceptable to many obese. No drugs are currently approved for treatment of obesity in childhood. Drug treatment has not been associated with notable successes in the past.

Developed Countries

It has been found that the Western medical model's predominant use of professional medical personnel was not effective in these developing societies because of the rural nature of the countries, their high levels of poverty, and the general decline of the world economy. For example, in Africa, there are less than 100 radiotherapy machines available, which are hardly enough to meet the estimated need. Generally, it is the high cost of equipment, poor infrastructure, and the inadequate numbers of trained personnel are seen as the cause for shortage of the radiotherapy machines across the continent.19 Thus, even though many Third World nations do have some of the highly technical procedures available to them to treat cancer, the poor and rural nations are unable to utilize those procedures causing higher rates of death from cancer despite the significant efforts by the WHO to increase screening and early diagnosis of cancer, but efforts are underway to increase access to necessary...

Nutritional Adequacy

The main shortcoming of the American diet is the surplus of energy (calories). Over one third of adult Americans are obese (and many more are overweight), and a growing number of children are overweight. The reason for this increasing trend is two-fold energy consumption is up, and activity levels are down.

Case Example

C was an overweight, 45-year-old divorced accountant who presented for treatment with a history of several years of dysthymic symptoms and multiple episodes of superimposed major depression. During depressive episodes, her symptoms included very low energy and motivation, impaired concentration, increased appetite with weight gain, and middle and terminal insomnia. Ms. C viewed herself as worthless and not deserving of attention from other people at the same time that she was furious about the lack of attention. She was frequently hopeless about changing her situation and would intermittently have suicidal thoughts of a pill overdose. She was guilt ridden and felt that she was always screwing things up. During the course of treatment, described below, Ms. C received a series of medications, with moderate impact on her depressive symptoms.

Paleolithic Diet

The authors of The Paleolithic Prescription do not advise a return to the Paleolithic way of life but instead recommend picking and choosing the healthier aspects of the Paleolithic way of life. To give up the advances of modern medicine and the battles that humans have won against microbes would be foolish, but the authors claim that these victories have come with a price our overall fitness. The human body, which has not substantially changed in about 35,000 years, was designed to be energy efficient when walking long distances in order to acquire food, but humans in developed nations today rarely do more than walk around the supermarket to acquire their food. Evidence shows that Paleolithic humans would routinely travel about 5 miles in their search for food. Walking

RRenal Failure

Restriction of dietary protein intake is known to lessen the symptoms of chronic renal insufficiency (Walser, 1992). This raises two related, but distinct questions Do high protein diets have some role in the development of chronic renal failure Do high protein intakes accelerate the progression of chronic renal failure The concept that protein restriction might delay the deterioration of the kidney with age was based on studies in rats in which low energy or low protein diets attenuated the development of chronic renal failure (Anderson and Brenner, 1986, 1987). Walser (1992) has argued that this mechanism is unlikely to operate in humans. In particular, the decline in kidney function in the rat is mostly due to glomerulosclerosis, whereas in humans it is due mostly to a decline in filtration by nonsclerotic nephrons. Also, when creatinine clearance was measured in men at 10- to 18-year intervals, the decline with age did not correlate with dietary protein intake (Tobin and Spector,...

Postabsorptive State

The postabsorptive state commences when the last nutrient is absorbed from the previous meal and continues until the next meal or for approximately 12 h during a normal overnight fast. Metabolically, it is the period when there is a transition from exogenous energy consumption to reliance on endogenous energy sources. The release from the liver of approximately 200-250 g of glucose per day or 8-10 g per hour balances the rate of glucose utilization of the brain and other tissues. During an overnight fast, a significant proportion of the glucose requirements are met by the breakdown of liver glycogen. The remaining glucose is formed from noncarbohydrate sources glycerol (from triacylgyl-cerols), pyruvate, and lactate (from muscle).

Basal Metabolic Rate

The cumulative increase in BMR can comprise a large part of the total energy costs of pregnancy. Although 150 MJ is a good estimate of the average energy cost of maintenance for a well-nourished woman, there is a very wide range. This has an important influence on the extra daily requirements for individual women. Studies in which BMR has been measured every 6 weeks from prepregnancy to 36 weeks of pregnancy have shown very marked differences. In some women, there is the expected response to pregnancy an immediate and progressive increase in BMR. In other women, BMR actually decreases or increases only slightly in the early stages of pregnancy and does not increase substantially until late gestation. This offsets the later increase in BMR such that there is actually a slight net saving of energy over the entire gestation period in some of these 'energy-sparing' women. The total net cost of maintenance, estimated as the cumulative area under the curve represented by the rise in a...

An Energy Inventory

Before you begin to seriously pace yourself, it is a great idea to spend three days keeping track of what you are doing. After all, one of the best ways to see how you can save coins is to first see how they are now being spent. In my clinic, we recommend that patients keep a three-day log of their activities. They write down all their activities and also document when they are experiencing pain or feeling particularly fatigued. The occupational therapist then reviews this log with the patient and rates the tasks with different highlighters. A yellow marker highlights the low-energy activities, a pink marker highlights activities that take a moderate amount of energy, and a green marker highlights high-energy activities. You can color-code your own log at home it will be interesting to see how your log lights up. You may think that you aren't doing much but then see that you have mostly pink and green in your log. Or vice versa. The point is that this is a logical place to start....

Conditioned Hunger

It is possible to demonstrate experimentally how human beings adapt their eating to a food's energy content. A distinctively flavored food which contains 'extra' hidden energy, presented on several occasions, will result in a change in eating and in preference. When deprived of food, subjects' preference for the taste increases with gained experience. If presented when satiated, preference for the taste decreases. This process is also observable in young children, who eat smaller meals following a taste previously associated with a high-energy snack, and larger meals following a taste previously associated with a low-energy snack.

Carotenes

Composition 100 g water 76.3 g, 532 kJ (127 kcal), protein 17.8 g, fat 5.6g (of which 23 saturated, 48 mono-unsaturated, 29 polyunsaturated), cholesterol 66mg, carbohydrate 0g, ash 1.5g, Ca 41 mg, Fe 1.2 mg, Mg 29mg, P 415mg, K 333 mg, Na 49 mg, Zn 1.5mg, Cu 0.1 mg, Se 12.6 g, vitamin A 9 g retinol, E 0.6mg, K 0.1mg, B1 0.12mg, B2 0.05mg, niacin 1.6mg, B6 0.19mg, folate 15 g,B121.5 g, pantothenate 0.8mg, C 2mg. A 100g serving is a source of Se, pantothenate, a rich source of P, vitamin B12. carrageen Edible seaweeds, Chondrus crispus, also known as Iberian moss or Irish sea moss, and Gigartina stellata stewed in milk to make a jelly or blancmange. A source of carrageenan. carrageenan A polysaccharide extracted from red algae, especially Chondrus crispus (Irish moss) and Gigartina stellata. One of the plant gums, it binds water to form a gel, increases viscosity, and reacts with proteins to form emulsions. It is used as an emulsifier and stabiliser in milk drinks, processed cheese,...

Terrorism

Saudi Arabia, Egypt, Morocco and Algeria are contemplating developing nuclear power, and South Africa, Brazil, Canada, Argentina and Australia are considering uranium-enrichment programs. Mohamed ElBaredei, Director General of the International Atomic Energy Agency has said . if a country is capable of doing that, they are virtually a nuclear weapons state.

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