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Conflict of interest statement The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

References Billman G. Heart rate variability - a historical perspective. An introduction to heart rate variability: methodological considerations and clinical applications. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet , — Measuring agreement in method comparison studies. Methods Med. Temporal variations in the pattern of breathing. Reproducibility of heart rate variability from short-term recordings during five maneuvers in normal subjects.

Low heart rate variability in a 2-minute rhythm strip predicts risk of coronary heart disease and mortality from several causes: the ARIC Study. Atherosclerosis Risk In Communities. Circulation , — A procedure to correct the effect of heart rate on heart rate variability indices: description and assessment. Normal ranges of heart rate and respiratory rate in children from birth to 18 years of age: a systematic review of observational studies.

Interaction between heart rate variability and heart rate in pediatric population. Test-retest reliability of heart rate variability and respiration rate at rest and during light physical activity in normal subjects.

Repeatability of heart rate variability during simple cardiovascular reflex tests on healthy subjects. Tools to support interpreting multiple regression in the face of multicollinearity. The role of measurement reliability in clinical trials. Trials 1 , — Cardioventilatory coupling: effects of IPPV. Heart rate variability after acute myocardial infarction in patients treated with atenolol and metoprolol.

Reliability and accuracy of heart rate variability metrics versus ECG segment duration. Relation between actual heart rate and autonomic effects of beta blockade in healthy men.

Biophysical characterization of the underappreciated and important relationship between heart rate variability and heart rate. Hypertension 64 , — Role of editing of R-R intervals in the analysis of heart rate variability. Heart rate variability measures: a fresh look at reliability. Lond , — Cardiovascular control and time domain Granger causality: insights from selective autonomic blockade.

Royal Soc. A Math. Effect of heart rate correction on pre- and post-exercise heart rate variability to predict risk of mortality-an experimental study on the FINCAVAS cohort.

Considerations in the assessment of heart rate variability in biobehavioral research. Identification of coupling direction: application to cardiorespiratory interaction. E 65 Why should one normalize heart rate variability with respect to average heart rate. Interaction between heart rate and heart rate variability.

Noninvasive Electrocardiol. Heart rate contribution to the clinical value of heart rate variability. Interplay between heart rate and its variability: a prognostic game. How to strengthen or weaken the HRV dependence on heart rate — Description of the method and its perspectives.

How to select patients who will not benefit from ICD therapy by using heart rate and its variability? Gender differences in the interaction between heart rate and its variability - how to use it to improve the prognostic power of heart rate variability.

Left ventricular mass index determines variability of the sinus rhythm in essential hypertension. New insight into heart period fluctuations via corrected spectral analysis.

Ciocco, A. The historical background of the modern study of constitution. Coleman, T. HumMod: a modeling environment for the simulation of integrative human physiology. Conrad, K. Berlin, Heidelberg: Springer-Verlag. Costa, M. Heart rate fragmentation: a symbolic dynamical approach. Cysarz, D. Day-to-night time differences in the relationship between cardiorespiratory coordination and heart rate variability.

Dick, T. Cardiorespiratory coupling. Brain Res. Ellis, J. Sex-dependent association of blood pressure with oestrogen receptor genes ERalpha and ERbeta. Elstad, M. Cardiorespiratory interactions in humans and animals: rhythms for life. Engel, P. Der Tagesgang der Phasenkopplung zwischen Herzschlag und Atmung und seine Beeinflussung durch dosierte Arbeitsbelastung. Fechner, M. Feigenbaum, J.

The relation between physical constitution and the incidence of disease. Feng, C. Log-transformation and its implications for data analysis. Shanghai Arch. Psychiatry 26, — Gadzhiev, G. Influences of solar and geomagnetic activity on health status of people with various nosological forms of diseases. Biophysics 58, — Der Merkurstab 67, — Goetz, L.

Personalized medicine: motivation, challenges, and progress. Goldstein, I. Postprandial ambulatory blood pressure and heart rate effects in healthy elderly adults. Gordon, S. Body position and cardio-respiratory variables in older people.

Gotts, J. Sepsis: pathophysiology and clinical management. BMJ , i Gruber, J. Gubin, D. The human blood pressure chronome: a biological gauge of aging. In Vivo 11, — PubMed Abstract Google Scholar. Die Grundlagen der Biologischen Konstitutionslehre. Germany: Thieme Verlag. Halberg, F. Incidence of sudden cardiac death, myocardial infarction and far- and near-transyears.

Hamburg, M. The path to personalized medicine. Harrap, S. Familial patterns of covariation for cardiovascular risk factors in adults: the Victorian family heart study. Heckmann, C. Der Merkurstab 54, 13— Heckmann, G. Morgan Frankfurt: Peter Lang Verlag , — Hernandez, A. Short-term heart rate variability—influence of gender and age in healthy subjects.

PLoS One e Hildebrandt, G. Acta Med. Die rhythmische Funktionsordnung von Puls und Atmung. Outline of chronohygiene. Chronobiologia 3, — Chronobiological aspects of cure treatment. Heilkunst geisteswiss. Erkenntnissen 38, 8— Zur Physiologie des rhythmischen Systems. Erkenntnissen 39, 8— Herzfunktion und Herzinfarkt—Chronobiologische Aspekte. Der Merkurstab 41, 22— Chronobiologische Aspekte des Kindesalters.

Der Merkurstab 47, — Die Koordination von Puls- und Atemrhythmus bei Arbeit. Der Einfluss des Atemrhythmus auf die Reaktionszeit. Pflugers Arch. Gesamte Physiol. Menschen Tiere , — Complementary Med. Holst, L. Lower versus higher hemoglobin threshold for transfusion in septic shock.

Hood, L. A personal view on systems medicine and the emergence of proactive P4 medicine: predictive, preventive, personalized and participatory.

New Biotechnol. Predictive, personalized, preventive, participatory P4 cancer medicine. Houle, D. Phenomics: the next challenge. Hoyer, D. Validating phase relations between cardiac and breathing cycles during sleep. IEEE Eng.

Iida, R. Non-invasive assessment of human baroreflex during different body positions. Ikonomov, O. The blood pressure and heart rate chronome of centenarians. Chronobiologia 18, — Jain, A. Data clustering: 50 years beyond K-means. Pattern Recognit. Jones, D. Textbook of functional medicine. Kane, A. Differences in cardiovascular aging in men and women. Karczewski, W. The role of the vagus nerves in the respiratory and circulatory reactions to anaphylaxis in rabbits.

Katona, P. Respiratory sinus arrhythmia: noninvasive measure of parasympathetic cardiac control. Kellawan, J. Exercise vasodilation is greater in women: contributions of nitric oxide synthase and cyclooxygenase. Kerkhof, P. Sex-specific analysis of cardiovascular function. Kim, B. Genetic approach to elucidation of Sasang constitutional medicine.

Based Complement. King, L. The impact of the severity of early life stress on diurnal cortisol: the role of puberty. Psychoneuroendocrinology 77, 68— Kitano, H. Systems biology: a brief overview. Science , — Kloter, E. Heart rate variability as a prognostic factor for cancer survival—A systematic review. Koleva, M. Somatotype and disease prevalence in adults. Health 17, 65— Krause, H. On the difference of cardiorespiratory synchronisation and coordination.

Chaos Herzinfarkt und rhythmisches system. Der Merkurstab 40, 15— Kuo, T. Effect of aging on gender differences in neural control of heart rate.

Legato, M. Consideration of sex differences in medicine to improve health care and patient outcomes. JAMA Lenis, G. Signal Process. Control 31, — Synchronization and modulation in the human cardiorespiratory system. Physica A , — Mackay, C. Central respiratory chemosensitivity and cerebrovascular CO 2 reactivity: a rebreathing demonstration illustrating integrative human physiology.

Madaniyazi, L. The researchers are also hoping to establish careful heart-breathing correlations for patients with heart problems, the better to develop diagnostic devices. Materials provided by American Institute Of Physics. Note: Content may be edited for style and length. Science News. ScienceDaily, 1 February American Institute Of Physics. The animation guiding breathing ran for complete breath cycles.

The total number of guided intervals for the 22 volunteers considered in this work is Instantaneous breathing rate blue and heart rate red are shown from data for volunteer Regions of guided breathing are shaded. Not all of the minute rest interval at the beginning is shown, as this data is not explicitly analysed in this article.

Simultaneous recordings of ECG and respiratory signals were performed. According to the data processing procedure described in Methods section, both the breathing and the heart rates were derived in Hertz; however, for illustrative purposes in this paper, the rates are presented in beats-per-minute BPM. The heart and breathing rates plotted together in Fig. The heart rate demonstrates a response to a step change in breathing rates; these step responses will be discussed below.

Owing to the design of the experiment, the breathing rate during guided intervals was intended to be constant. Additionally, swallowing or coughing were observed in a few cases.

However, the mean breathing rates matched the guided values set by the metronome. For this volunteer Fig. The mean and standard deviation of the breathing rate for all intervals and volunteers are shown in Table SI1 of Supporting Information SI. The standard deviation of the breathing rate defines the minimal possible step increments between guided breathing rates. The dashed black lines represent the standard deviation of the rate, while the solid black line is the mean breathing rate for that interval.

Assuming a volunteer follows the metronome well, the range between standard deviation lines will be small. The normalisation demonstrates the proportional rate of breathing relative to RHR.

Data from volunteer The Shapiro-Wilk normality test showed that for 33 out of 66 guided intervals, the breathing rate is normally distributed.

Thus, the stochastic component in guided breathing rate can be represented as a Gaussian random process, and the breathing signal itself corresponds to stochastic quasi-harmonic oscillations with a constant amplitude and a variable frequency see Fig.

SI1 in SI. The mean and standard deviation of the heart rate for all intervals and volunteers are shown in Table SI2 of SI. The variability of this data is significantly stronger than that of the breathing rate data.

This can be explained by the nonstationary dynamics of heart rate. Conversely to the guided breathing rate, the KPSS test demonstrated that for 63 out of 66 high-rate breathing intervals, instantaneous heart rate is non-stationary. Furthermore, the Shapiro-Wilk test showed that 49 out of 66 heart rate intervals are not normally distributed.

The noticed non-stationarity is linked to transient adaptation periods which were observed for most guided intervals, with the heart rates rising to levels disproportionate to the prescribed breathing rate, forming a ramp response.

Adaptation was particularly visible during the first interval of high-rate breathing Fig. Regardless, assuming a volunteer relaxed and continued following the breathing metronome, their heart rate adjusted accordingly.

This transient period is less pronounced in the subsequent second and third intervals. To analyse the transient response, a slow trend of the heart rate was calculated via a moving average technique described in the Methods section. A variety of trend patterns was observed Fig. SI2 in SI and for some intervals there was no trend.

In the example presented in Fig. SI2 in SI. The patterns for the second and third intervals were more complex, but the majority included a transient increase of the rate. For some intervals, the heart rate seemed to begin to tend to a steady state value after the initial adaptation.

However, there was no clear steady state observed and for the majority of cases, the heart rate continued to diffuse. In fact, such wandering dynamics are a feature of heart rate 22 and ought to be considered when analysing synchronization. Trends in heart rate during the intervals of guided breathing. Black curves correspond to the trends. Red lines specify the mean value solid line and standard deviation dashed lines of the breathing rate for each interval.

All data normalised by the mean breathing rate of interval 2. The intended heart rate response should mean the black curve falls within the red dashed lines for as much of the interval as possible. An example of a synchrogram 6 encompassing all guided respiration intervals and spontaneous rest periods is shown in Fig. During this episode, wandering of the heart rate is limited and the heart rate fluctuates around a particular value Fig. Before and after this episode the heart rate shows a diffusive behaviour.

Synchrogram for volunteer Shaded regions correspond to the regions of guided breathing. For 18 of the 22 volunteers, CRS occurred within the third interval, when the guided breathing rate was higher than RHR. For four volunteers number 2, 10, 20 and 21 , episodes of synchronization were observed for the second interval when the breathing rate was intended to be equal to the RHR.

An additional analysis of heart rate during the minute rest interval prior to guided breathing suggests that the RHR value calculated for these was potentially too high, thus for this second interval breathing rate was above the actual RHR.

In many cases, more than one episode of CRS was observed within the same time interval. The longest episode was singled out and the total duration of all episodes in the given interval was calculated. All results are summarised in Table 1 with times given to the nearest second. The CRS durations calculated by the two methods produced close values.

One volunteer number 3 had very short CRS episodes. The dynamics of the phase difference and rates for the third interval for this volunteer and volunteer 2 are shown in Fig. SI3 in SI. Interpretation of these plots allows for visualisation of the durations specified in Table 1. The top panel plot a and e in Fig. The duration of synchronization episodes for different volunteers are shown in Table 1. The second panel plot b and f shows time dependence of the synchronization index. A value of the index close to one represents synchronization between two oscillating signals.

Extended episodes above the experimentally-justified threshold of 0. The third panel plots c and g shows the synchrogram for the entire interval of high-rate breathing. During the phase synchronization points on synchrogram demonstrate a plateau. The final panel plots d and h are a representation of the heart and respiratory rates for a comparison of instantaneous rates during episodes of synchronization with dynamics of phases.

The dashed red lines represent the high variability of breathing rate even for controlled breathing- the larger this range, the more variable the breathing rate and thus the worse a volunteer maintained a constant rate. The solid red line is the average breathing rate, and the blue line demonstrates the dynamics of the instantaneous breathing rate throughout the interval. The black line in plots d and h corresponds to heart rate with removed high-frequency oscillations via applying moving average techniques.

During episodes of phase synchronization, the black line is expected to fall wholly between the dashed red lines, representing the fact that the variability of heart rate is contained within the variability of breathing rate.

Synchronization measures for volunteer 2 left and volunteer 3 right. Figures a , e show the phase difference, figures b , f show the synchronization index, figures c , g show the synchrogram, and figures d , h show smoothed heart black line and respiratory blue line rates.

In figures d , h red lines specify the mean value solid line and standard deviation dashed lines of the breathing rate for each interval. In Fig. As mentioned, CRS episodes were observed in the second interval rate intended to be equivalent to RHR for four volunteers.

Therefore, their third interval corresponded to a breathing rate significantly higher than the RHR.






















These electron transport chains are found within the cell membrane of bacteria and archaea, and within the mitochondrial membrane of eukaryotes. Energetics While some energy is lost as heat in chemical reactions, the measurement of interest for cells is the amount of free energy G , or the energy available to do work.

Adenosine triphosphate ATP Adenosine triphosphate or ATP is a high-energy molecule used by all cells for energy currency, partly because it readily donates a phosphoryl group to other molecules. Enzymes In order for a chemical reaction to proceed, chemical bonds must be broken. Redox Reactions Cells conserve energy in the form of ATP by coupling its synthesis to the release of energy via oxidation-reduction redox reactions , where electrons are passed from an electron donor to an electron acceptor.

Conjugate Redox Pair Electrons do not exist freely in solution, they must be coupled with atoms or molecules. Electron Tower. Electron Carriers The transference of electrons from donor to acceptor does not occur directly, since chemically dissimilar electron donors and acceptors might never interact with one another.

Proteins with these molecules are called flavoproteins. Cytochromes — use iron atoms as part of a heme group to carry 1 electron at a time. Iron-sulfur Fe-S proteins , such as ferredoxin — use iron atoms not part of heme group to carry 1 electron at a time. Electron Transport Chain The process starts with an initial electron donor, a substance from outside of the cell, and ends with a final electron acceptor, another substance from outside of the cell.

Electron Transport Chain. Study Questions How are metabolism, catabolism, and anabolism defined? What are the 3 major types of work carried out by cells? What is free energy? Under the terms of the licence agreement, an individual user may print out a PDF of a single entry from a reference work in OR for personal use for details see Privacy Policy and Legal Notice.

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Several of these transitions are shown, including the oxidation succinate to fumarate which is mechanistically coupled to the reduction of ubiquinone to ubiquinol in the inner mitochrondrial membranes. Each of these intermediate electron transfers must be thermodynamically favorable on its own in order for respiration to proceed. Yet they are favorable enough to pump a proton across the cell or mitochondrial membrane. This is the energetic basis for chemiosmosis: cells store quanta of energy too small for ATP synthesis in the proton gradient across a membrane.

Though ATP is often claimed to be the energy currency of the cell, in fact, for the energetic balance of the cell the carriers of reducing power are themselves no less important.

We can use the redox potential to connect these two molecular protagonists, and estimate an upper bound on the number of ATP molecules that can be produced from the oxidation of NADH produced, for example, in the TCA cycle.

For the reaction considered above of NADH oxidation by oxygen, the maximal associated free energy that can be extracted is thus. In the cell, oxidation of NADH proceeds through several steps in respiration and results in the transfer of 10 protons across the membrane against the electro-chemical potential BNID These proton transfers correspond to yet another way of capturing biochemical energy.

Why should one discuss redox potentials of half reactions and not free energies of full reactions? The units themselves owe their origins to the ability in the field of electrochemistry to measure in the lab the voltage difference, i.

The usefulness of redox potentials for half reactions lies in the ability to assemble combinations of different donors and acceptors to assess the thermodynamic feasibility and energy gain of every considered reaction. Just as we speak of the pH of a solution, at first guess, we might imagine that it would be possible to speak of an apparently analogous redox potential of the cell. Knowing the concentration of the reduced and oxidized forms of a given reaction pair defines their pool redox potential via the relation.

As can be seen the first is relatively oxidized and the second relatively reduced with a ratio among them usually much larger than 1. In the mitochondrial matrix a ratio of fold more of the oxidized form is reported BNID as shown in Table 1. A cell is not at equilibrium and there is weak coupling between different redox pairs.

A The relevant half-reactions and potentials from Table P2 are as follows:. Thus the equilibrium lies far to the right, favoring a discharged battery as anyone who has ever tried unsuccessfully to start a car after letting it sit for a long time will know. The reaction is as follows:. Unfortunately, these criteria apply only to systems in which all reactants and products are present in their standard states, a situation that is seldom encountered in the real world. A coulomb C relates electrical potential, expressed in volts, and energy, expressed in joules.

The product of the cell potential and the total charge is the maximum amount of energy available to do work, which is related to the change in free energy that occurs during the chemical process.

Learning Objectives To understand the relationship between cell potential and the equilibrium constant. To use cell potentials to calculate solution concentrations.






















Marinades for vegetables or meat that need a dose of the acidic brightness and sweetness of tomatoes as well as their bright red color will often call for tomato puree. In the slow cooker, adding brown sugar and apple cider vinegar to pasta sauce mixed with water makes a serviceable barbeque substitute to cook with cuts of meat.

In baked dishes such as casseroles that have a sauce or gravy component, tomato puree is often called upon to form the basis of the sauce that coats and flavors all the other ingredients.

This occurs in baked beans, for example. Examples include Spanish rice, red enchilada sauce, and salsa. Tomato sauce is an ingredient in olive tapenade, which can be spread on a sandwich as a condiment or served alongside crackers or crostini as an appetizer. When you are making stuffed vegetables, such as stuffed bell peppers, stuffed zucchini or stuffed tomatoes, the recipe often calls for some tomato sauce to help flavor the rice mixture inside the veggies.

In addition to topping pasta dishes, you can use tomato sauce in chicken, veal, or eggplant Parmesan, use it to flavor Italian-style mussels, or exchange it for pizza sauce when you make homemade pizza. A bit of tomato sauce makes an excellent salad dressing as a tomato vinaigrette. Simply mix your tomato sauce with red wine vinegar, olive oil, herbs, salt, and pepper. Meatloaf is often flavored with a tomato-based component.

Tomato sauce makes an excellent base for the sauce in ratatouille, a vegetable dish that combines the sauce with zucchini, squash, eggplant, onion, garlic, bell peppers, and olive oil. We read about a take on buffalo wings that uses one part hot sauce combined with one part tomato sauce to flavor the chicken. Combine tomato sauce and eggs for dishes like shakshuka or eggs in purgatory to put tomato sauce to use on the breakfast table.

In a pinch, you can craft a makeshift cocktail sauce for shrimp by combining tomato sauce with some horseradish to taste. Add your tomato sauce or a bit of tomato paste to a pitcher of bloody Mary drinks for a fun and out-of-the-ordinary way to use these tomato products. Adding a spoonful of tomato paste to a simmering pot of beans will deepen the flavor of the broth and add some of the acidic brightness of tomatoes to your recipe.

Tomato paste can be swirled into a pot of soup to give the broth a richer color and taste. Lots of Cajun or Creole dishes benefit from the addition of tomato paste, such as etouffee, dirty rice, or jambalaya.

Give hamburgers a flavor boost by mixing some tomato paste into the patties before they are cooked. Just a dab of tomato paste can add lots of color and flavor to rice and other grain dishes, such as barley or quinoa. Leave a Reply Cancel reply Your email address will not be published. Privacy Policy. Affiliate Disclosure Our gardening obsessed editors and writers choose every product we review.

Loading Comments However, it is important to note that unlike using only a few tablespoons of paste, the sauce is used in larger amounts. The antioxidant in tomatoes is lycopene. It prevents cell damage, is good for heart health, and reduces the risks of several types of cancer. A study suggests that lycopene in the tomato paste absorbs better, thus making this ordinary cooking ingredient a powerful source of an important antioxidant.

This benefit of tomato paste is the result of the method used to make it. Research suggests that processed tomatoes are a better source of lycopene than uncooked tomatoes. Thus, as far as the antioxidant contents go, tomato paste overshadows fresh tomatoes and tomato sauce that is cooked very little. You can substitute tomato paste for tomato sauce. And you can expect a similar but not the same result. Tomato paste is more concentrated than tomato sauce. It has almost no liquid content. Thus, you will need to dilute it with water.

The taste of tomato paste is slightly acidic. If you are using it instead of tomato sauce, use an ingredient that will balance out the acidity. A pinch of sugar or a small amount of vinegar will work well for that purpose. If you have run out of your favorite canned tomato sauce, you can make one using tomato paste.

However, if you have fresh tomatoes at hand, you better use them to make a sauce. It does require slightly more effort, but you are guaranteed to get a better result and an authentic tomato sauce taste.

Making tomato sauce using tomato paste is simple. Combine one part of the paste with one part of water. Mix well until you reach a smooth consistency. Once the two ingredients are soft, add the mixture of the paste and water. Season with salt. If you make a purchase using the links included, we may earn commission. Save Pin More. Comments Add Comment. Back to story Comment on this project.

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Which states consume and produce the most natural gas? How much natural gas is consumed in the United States? What is the price or cost of natural gas for U. What is the volume of world natural gas reserves?

How much natural gas does the United States have, and how long will it last? Does EIA publish shale gas and coalbed methane production and reserves data? How much of U. Does EIA have information on U. How many alternative fuel and hybrid vehicles are there in the United States? Why am I being charged more for heating oil or propane than the price on EIA's website?

What is U. Does EIA publish energy consumption and price data for cities, counties, or by zip code? How much coal, natural gas, or petroleum is used to generate a kilowatthour of electricity?

What types and amounts of energy are produced in each state? Does EIA have county-level energy production data? What can I expect to pay for heating this winter? How much shale gas is produced in the United States? Does EIA have forecasts or projections for energy production, consumption, and prices for individual states?

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I Accept Show Purposes. Your Money. Personal Finance. Your Practice. Popular Courses. What Is MCF? MCF is a conventional natural gas measurement that is used primarily in the United States, where the imperial measuring system is standard. The comparable term for natural gas measurement in Europe, where the metric system is used, is MCM. Article Sources. Investopedia requires writers to use primary sources to support their work.

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Investopedia does not include all offers available in the marketplace. Billions of Cubic Feet Equivalent BCFE : An Explanation Billions of cubic feet equivalent is a natural gas term used to measure how much natural gas is either in reserves or delivered over extended periods. Barrel of Oil Equivalent BOE A barrel of oil equivalent BOE is a term used to summarize the amount of energy that is equivalent to the energy found in a barrel of crude oil.

Natural Gas Equivalent Definition Natural gas equivalent measures the amount of gas energy contained in a barrel of oil. What Is a Renewable Resource? A renewable resource is a substance of economic value that can be replaced or replenished in less time than it takes to draw the supply down. Partner Links.






















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A universal indicator is a mixture of dyes that begin with green color, but while added to a solution it changes color. The color that changes, not only specifies that the substance is acidic or basic, but it can show the position on the pH scale from 0 to Colors ranging from yellow to red specify an acidic solution, blue to violet indicate alkali, and green indicates a neutral solution.

The major difference between the litmus paper and the universal indicator is that the universal indicators can change a range of various colors, so it is useful in determining the strength of an acid or base, while the litmus paper only gives you an indication of whether the substance is an acid or alkali; it doesn't tell us about the strength of the acid or the base. Litmus paper is used in tests where only the acidic or basic nature of the substance is involved, while the universal indicator is used in tests were to know the pH of a substance.

You may also like this. Applications of pH. Difference between pH paper and universal indicator. Whereas blue litmus papers turn red when encounter with an acidic solution. The neutral litmus papers are purple in color. The color change of litmus papers is taking place over pH range 4. Therefore, one of the disadvantages of litmus papers is that they cannot be used to determine the pH value. The strength of the acidity or the basicity also cannot be determined using litmus papers, on the other hand, the readings are instantaneous, and easy to take.

Litmus papers can be used by anyone without any expertise knowledge. They only have to know which color is relevant to acidic and basic pH value. The scale has numbers from 1 to Pure water is said to be having pH 7. It turns purple in neutral solutions.

Litmus paper is usually more reliable, and comes as red litmus paper and blue litmus paper. The table shows the colour changes it can make. Notice how we say 'stays red'. This is better than saying 'nothing' or 'stayed the same', because it tells us the colour we actually see. Universal indicator is supplied as a solution or as universal indicator paper.

It is a mixture of several different indicators.






















Difference between Kindergarten and Primary School. Key Difference: Kindergarten denotes a type of preschool that focuses on the children from three to five years of age. A primary school is an elementary school which is meant for the children below the age of eleven.

However, in some countries kindergarten and primary school are used synonymously to denote a school for children with five to six years of age. Image Courtesy: cleveland. Comments OOOO its a very good and enjoyable to me. Your name. Both preschool and pre-k programs address the needs of a child, though pre-k is distinct and wholly separate from preschool.

First, both pre-kindergarten and preschool have a playful learning classroom. These classrooms are driven by the interest of the children. In this age, the children learn best by having hands-on experience in learning and exploring. A typical day in these classrooms includes music, art, science, reading and math activities, and of course, playtime.

Another common thing between these two is the social and emotional growth of the children. Relationships are essential for growing children. Both teach children social skills through interactions, mentoring and direct teaching. Preschool and pre-kindergarten have so many similarities. They both promote learning and growth in children in many areas.

If your child is in kindergarten, you'll probably receive regular reports on your child's progress and may even attend parent-teacher conferences. If your child is a preschool, however, you might only hear about behavior and get periodic updates on achievements.

Kindergartners are expected to have much more impulse control than preschoolers. Preschool teachers may focus on burning off children's energy through play, while kindergarten teachers expect that students will be able to focus on lessons for brief periods. Students who have trouble focusing or sitting still in kindergarten might get additional help or be diagnosed with a condition such as attention deficit disorder.

In preschool, however, this behavior, within reason, is normal and expected. Van Thompson is an attorney and writer. Interoperable teachers let children explore in games, learn from games and gain perception.

These evaluation indicators enable teachers to gain objective and comprehensive understanding of the overall situation of young children in K-P transition period.

This evaluation index helps teachers to analyze the appropriateness of educational goals, educational content, and educational methods, adjust teaching strategy immediately. After the implementation of the evaluation, the purpose and direction of teacher work during K-P transition period are clearer. Accordingly, this study sort out the establishment of evaluation criteria must adhere to the common education principle.

The evaluation principle is the basis for guiding the implementation of evaluation, which determines what teachers and parents should do or should not do. First, the principle of diversity. Parents need to participate in the evaluation. Children are not only limited to kindergartens, schools, but also families, so researchers encourage parents to participate in the evaluation Zhu, Second, the principle of objectivity.

The evaluation should be integrated with the real and natural scenarios, with the curriculum integration, and discipline learning integration Zhu, Thirdly, the principle of difference.

Children are different, in the evaluation to face and respect these differences, focusing on children in different starting points on the growth and development, rather than see whether they have reached one common standard. Evaluation should be based on the assessment of the characteristics of children found that diagnostic analysis, as the starting point for the implementation of education.

Finally, the principle of inspiration. The evaluation result is not used for comparison or training by teachers or parents. Figure 2. Table 1. Observations for K-P transition period. In the specific development of evaluation indicators, researchers design five evaluation dimensions, include 25 specific evaluation observations.

The Ecology of Human Development. Early Childhood Education and Primary Education. Elementary School, 2, Pre-School Education Research, 4, Dunlop Eds. London: Routledge Falmer. Shanghai Educational Research, 5, Analysis of Fracture between Kindgarten and Primary School. Urban Tutor, 8, Saracho Eds. New York: Teachers College Press. Teacher Education Forum, 7, Educational Circles, 21, File Number: Basic Education Division , Modern Teaching, 11, Journal of Chongqing Academy of Arts and Sciences, 30, Education Research and Comments, 3, Preschool Education, 4, Home Journals Article.

DOI: Abstract Since early s, research of transition from kindergarten to primary school was conducted in kindergartens at Shanghai, which mainly focused on how kindergarten children prepared for early primary school. Share and Cite:. Zhao, X. Creative Education , 8 , Introduction As early as the s, research of transition from kindergarten to primary school was once conducted in kindergartens at Shanghai.






















Every student wishes to study in the best college or university so that they can have access to the best faculty and resources. The success of an institution is determined by the success of its alumni. Many people are always confused about the basic difference between a college and a university.

The difference between Harvard College and Harvard University is that Harvard college is a college that is affiliated to Harvard University, and it only enrolls students in its undergraduate programs awarding degrees like Bachelor of Arts and Bachelor of Science.

Harvard college is one of the prominent colleges that has a very bright past, it offers a large number of undergraduate programs and courses. It is a higher secondary institution where students from all across the world come and study. It was founded in the year in Cambridge, Massachusetts. Harvard University is one of the most renowned and well-known universities in the world where students from all over the world wish to study and pursue a degree here.

It includes a large number of colleges that are affiliated with this university. Harvard university is also an Ivy League Research University.

Harvard College is one of the biggest colleges affiliated with Harvard University. What's worthy to note is that research faculties, teaching and admissions are different, and undergraduate programs aren't offered. Now that you know the difference between the two, you should have an idea of which one is the right fit for what you need. So which one is better, college or university? Each school is just about equal in academic terms, which means quality of education should be roughly the same.

The claim that a university is better than college in terms of teaching is simply not true. However, if you want more choices for programs, classes and curriculum, then you'd be a better fit for a university, i. Arizona State University. Go beyond the name and title to find the one that you really need. Instead, take to heart what you want to achieve and go from there. It's also important as an owner to treat and reward staff members as the majority of the times they are legs of the company.

Skip to main content. China Directory. Home Blog News Publications. Can I self-report my test scores? What is the difference between Harvard College and Harvard University? Frequently Asked Questions. Though, the college was originally male dominated and women were not allowed to study there, another institute Radcliffe Institute for Advanced Study was created for women.

Harvard became co-ed after its merger with Radcliffe in Harvard has a acre main campus, along with 22 acres of Medical campus and acres of Allston campus. According to Forbes, the school has been credited with churning around 8 US presidents and sixty-two living billionaires. It also has 75 Nobel Laureates that have been student, faculty or staff affiliates of the college.

Harvard College, although a part of Harvard University, differs from the university.






















And Foreground Service is less likely to be killed by system on low memory. The foreground color is also the beginning color of a default gradient applied by the Gradient tool.

The background color is the color you apply with the Eraser tool and is the ending color of the default gradient. Select the Eyedropper tool on the toolbox, and then click anywhere in the active document to change the foreground color. Hold down the Alt Win or Option Mac key, and then click to change the background color.

Click the color in your image that you want to use. That color becomes your new foreground or background color. The foreground contains the applications the user is working on, and the background contains the applications that are behind the scenes, such as certain operating system functions, printing a document or accessing the network.

What is foreground sync on Android? Skip to content Technology. January 20, Joe Ford. Table of Contents. It may not be perfect, but it will save you time. Knowing the difference between these two elements is essential for your understanding of how editing programs work.

Here are a few tips on how to pick background and foreground colors for your next project. Your background color will occupy a larger percentage of your canvas in most cases. You should consider selecting a dimmer and less sharp color to give your design a welcoming and acceptable outlook. After all, your foreground is what people will be focusing on. The foreground and background colors enable designers and other experts to transform their images and designs creatively.

The tool allows you to create a different composition to separate your background from the image at the forefront.

The tool also makes it easy to work with other tools like your Brush, Eyedropper tools, Color palette, and Swatches palette to create a convincingly stunning design. You can watch the masters and learn by example.






















Tossing and turning in your seat may be inevitable for long-haul flights so wiggle room is important. Economy: One 7-kg carry-on; Two kg check-in. Business and First Class: Two kg carry-on and one garment bag; Two kg check-in. You have to be very careful to read between the lines when it comes to baggage allowances on major airlines. There are different measurements, different weight restrictions, and limits to how many pieces of luggage you can bring.

Baggage allowances also vary on the destination or where you are coming from. The Airbus A is usually the most fantastically-designed aircraft. Chances for you to get on one is highest with Emirates as it has 90 of these planes. Wide selection of movies including recently-released blockbusters. Blanket, pillow, in-flight bag eye mask, travel socks, ear plugs and toothpaste and a mini toothbrush. I Accept Show Purposes.

Your Money. Personal Finance. Your Practice. Popular Courses. Wealth Lifestyle Advice. Table of Contents Expand. Key Differences in Dining Options. The Bottom Line. Key Takeaways As of Spring , many airline services have changed because of the COVID pandemic; these changes will likely continue indefinitely and travelers should check each airline for their most current services and amenities. All three Middle Eastern airlines—Emirates, Etihad Airways, and Qatar Airways—have tried to set up their business-class cabins and service so that you can work and relax.

Article Sources. Investopedia requires writers to use primary sources to support their work. These include white papers, government data, original reporting, and interviews with industry experts. We also reference original research from other reputable publishers where appropriate. You can learn more about the standards we follow in producing accurate, unbiased content in our editorial policy.

Compare Accounts. The offers that appear in this table are from partnerships from which Investopedia receives compensation. This compensation may impact how and where listings appear. Investopedia does not include all offers available in the marketplace. Related Articles. Lifestyle Advice Private Jet Charter vs. First-Class: What's the Difference? When looking at flight timing, also look at the aircraft that serves that slot as this can make a bit of difference to you comfort.

Both airlines have now brought in preferred seating fees that most passengers on economy tickets will need to pay to guarantee the seat of their choice. After years of not charging for this service, it was inevitably going to happen…. Emirates has quite a complex tiered structure for paid seat selection that apply to preferred seats, twin seats and extra legroom seats.

Seat selection opens up to all 48 hours before the flight. On Etihad , since July , if you are travelling on an Economy Deal, Saver or Classic fare, you can reserve your seat in advance for a fee. Otherwise, seating opens up to all passengers 24 hours beforehand. Both airlines have a good reputation for seating family groups together , though the only way to guarantee this now is with preferred seating.

Both airlines have relatively new fleets, so expect in most cases you will have a good quality aircraft, and you SHOULD be getting top of their class service crews but we all know this can be a huge variable with any given crew on any given day. I most often fly internationally with 3 kids on my own; nothing can really make that less painful! What has helped is my own confidence in flying and loyalty.

You can read more of our flying with kids tips here. The only real difference has come through holding an Etihad Gold Card. Both airlines include personal amenity kits for long-haul flights including toothbrush, eyeshade, socks and ear plugs.

You will also be offered a blanket, pillows and headphones on boarding for your comfort. Update August On our last Etihad flight both the amenity kits and the U shaped pillows were absent! There goes any economy cabin advantage we though Etihad held. Both offer excellent onboard entertainment systems, but Emirates ICE systems Information Communication Entertainment is just unsurpassable.

Over channels can be found and you can even sync your playlist ready before you fly with the Emirates app! Comparatively, Etihad advertises on their E-box system over TV Shows and movies, 16 radio stations and 60 games. Take more than a couple of long-hauls in a month and the menu starts to look sparse. A huge frustration we have found with E-box is that it does not start until well after you are in the air and is turned off what feels like an exceptionally long time before you land.

Each airline gives out kids entertainment packs on long haul flights. Emirates Fly with Me animals convert into colourful kids blankets that my kids still take with them everywhere! E-box has a dedicated kids section too but it is much more limited and not always intuitive for kids to use independently. Now you may have heard of the mysterious Etihad Nanny. You can read my full thoughts on the Etihad Nanny here. I will sum it up in one word for you though; gimmick. This is a big differentiator that has recently developed that concerns some families.

Etihad, on the other hand, is still allowing them — or at least no where do they explicitly ban their use. We have used the Bed Box several times on Etihad , and one of our readers also tested the Kooshy Kids Kooshion without issue. We have a full comparison of which airlines allow these products to be used , as well as plane sleeping tips for kids here.

Both airlines offer baby bassinets that attach in the bulkhead row of economy cabins. These seats need to be requested in advance but cannot be guaranteed. They are free to reserve without needing to pay for a preferred seat see our seating section above.

Parents are given priority for the bulkhead seats when they share a PNR Booking reference with an infant. You can learn more about how baby bassinets work on airlines here. Emirates has over aircraft, pretty much all either As or Boeing s. Emirates has four variants, but all offer economy class cabins. But most economy class travelers like the A because it is roomy. Unlike Etihad, Emirates is presently operating some but not all of its As.

Because of the As, Emirates has the better aircraft type right now for an economy class traveler. An economy class ticket on either airline will not get you lounge access unless you hold elite frequent flyer status with that airline.

However, both airports have decent pay-per-use lounges. Stay informed: Sign up for our daily aviation news digest. Neither airline has a straightforward checked-in luggage policy for economy class travelers. Where you are flying to is also a factor. But the free allowance will range from 23kg on the cheapest economy fare type right up to 35kg on a fully flexible economy class ticket.

Economic class free checked-in bag allowances range from 20kg if you travel on an economy special fare to 35kg if you are traveling on an economy flex plus fare. Rather, your perception of space will.






















Make sure the all seasons duvet comes with a handy storage bag so that you can easily pack the extra duvet away when you're not using it. But only if they are old enough to be using a full size bed. Which duvet filling is best? The duvet filling is what makes a duvet feel totally amazing or utterly awful!

There are two main types of duvet filling to choose from, natural or synthetic. The duvet casing is also important. We would always recommend a cotton casing as it is breathable, temperature regulating and sweat wicking. Natural fillings are soft, warm and more breathable than synthetic materials. The majority of natural fillings are machine washable, durable and biodegradable.

Down and feather fillings are the most popular natural duvet fillings, both goose and duck. Check the labelling or packing to make sure the down used is ethical down and a by-product of the food industry. Natural filled duvets using goose or duck down or feather have better thermal insulation than synthetic duvets.

Down duvets: Down is the best natural insulator providing approximately three times more warmth than synthetic materials. Soft and fluffy, down is very durable and provides the highest levels of warmth in a duvet.

You will see Hungarian goose down duvets like scooms! The scooms pillow and duvet are NOMITE approved, certifying that they are suitable for house dust mite allergy sufferers.

A higher ratio of down to feather will give you a lighter and warmer duvet. Silk duvets:: Not widely available but a very durable and lightweight duvet filling. It is hypoallergenic, provides good temperature regulation and can be both washed and tumble dried.

It will lose its natural properties though if over-washed. Wool duvets: Naturally hypoallergenic, durable and recyclable. The chunky structure of wool means it traps air really well, providing good temperature regulation. Wool fillings wick away moisture from the skin and retain dry air and warmth. Often hypoallergenic because they can be washed regularly at higher temperatures, they can be a good option if you are allergic to feathers or wool.

Whilst synthetic duvets can be sweat wicking, they are less breathable than natural fibres, so we would not recommend one if you are a hot sleeper or have night sweats. Synthetic fibres can be manufactured to different widths of thickness and quality so make sure the duvet feels well filled. Unfortunately, as synthetic duvet fillings are made from a form of plastic, they are not recyclable and do not biodegrade so they will end up in land fill when you dispose of them. When they are washed, they can also release microplastics into the environment.

Microfibre duvets: Fine synthetic fibre made from polyester. The threads are finer than a human hair. Microfibre is intended to be the synthetic man-made equivalent to natural down. It is cheap to mass produce in vast quantities. The fine fibres are soft and silky. Hollowfibre duvets: A polyester similar to microfibre but each strand of fibre has a single hole down the centre that traps air. As with microfibre, it is cheap to mass produce. But what difference does it actually make?

When deciding on the best bedding products to suit your needs, one of the very first questions you should ask yourself is "natural or synthetic? If you're struggling to fall asleep at night, you're not alone! In fact, up to one third of the population fail to catch some Z's night after night.

So, we've got 7 top tips to instantly improve your sleep. Some duvets come in 'four-seasons' or 'all-seasons' sets. With these you get one light duvet usually about 3. The light one will be enough in hot summer months, and the heavy one suits spring and autumn weather. When you need extra warmth in winter, you can combine both. These all correspond to different mattress sizes. If you tend to feel cold in bed, go for the next size up from your mattress size for example, if you have a double bed, use a king-size duvet , so that the duvet flows over the edges to keep warm air in and any draughts out.

To find out which are the best duvet brands , in April we asked 2, Which? To work out customer scores, we asked what brand of duvet members owned, whether they were satisfied with it, and whether they would recommend it to a friend. We also asked them to rate their duvet for comfort, value for money and how well it matched the description. Check out our guide to find out what people think of the brand of duvet they own, including how comfortable it is and whether it was good value for money, covering major brands such as Ikea, John Lewis and Dunelm.

If you're a Which? Connect reader panel. When buying a duvet, make sure you're handing your money over to a reputable seller.

Check the retailer's returns policy and pay attention to customer feedback and reviews. For more details on shopping online safely and arranging refunds for faulty products, see our advice on shopping online. Next, Argos, Dunelm, Asda and John Lewis are some of the most searched-for duvet retailers at the time of writing.

Last checked: April From classic feather and down to hollowfibre, wool and silk, we look at the pros and cons of the main types of duvets to help you find the best. Aaron West. In this article Hollowfibre duvets: pros and cons Feather and down duvets: pros and cons Other duvet filling options Hypoallergenic and anti-allergy duvets: what's the difference?

Yankee Candle sale: Where to get the best deals. The best back supports for office chairs if you suffer with back pain. The best inflatable hot tubs to unwind in. The best oven cleaners for effortless degreasing.

Grab the best Argos deals ahead of Black Friday The best rice cookers according to real reviews. Here is how to choose a duvet that suits your needs. Which duvet filling should you get?

Dorma Luxurious White Goose Down 4. View offer. Fogarty Duck Feather and Down Fogarty Wool All Seasons Duvet. Snuggledown Classic Hollowfibre. Silentnight Deep Sleep Microfibre duvet. Fogarty Soft Touch 4.






















Clients who pursue psychotherapy want to make deep and significant changes in themselves. Depth psychotherapy means uncovering early history;becoming conscious of all parts of the self; improving self-awareness and self-expression; and sharing dreams, daydreams, metaphors,narrative stories, bodily sensations, intuitions and the experience of yourself in relationship with your therapist whenever possible.

It is helpful if you can articulate the kind of work that you want to do when you are seeking services. I work in all four of these areas and sometimes combine or change back and forth between services when it seems appropriate. The more you can describe or specify what you need, the better I will be able to provide the services that are a fit for you.

Please feel free to c ontact me. Your email:. Gresham Contact Links. What service is right for me? About Me. How does the Consensus Definition differ from your personal conceptualization of counseling?

What thoughts do you have regarding the way that the authors developed the Consensus Definition? The Counselor e. Always ACA, , A. When might you work as a consultant? When might you work in a collaborative relationship? They differ in the kind of helping approach that they offer, as well as in the range of situations and issues they can help with. They also vary in the amount of education and credentialing required to legally offer them as professional services.

What follows is a brief introduction to the differences among these three services. If you are considering Counseling or Coaching services, we can explore, in more detail, which would best fit your needs during the initial consultation. Of the three services, Professional Counseling requires the most specialized and regulated education.

A license to practice is required by law in each of the 50 states as well as the District of Columbia and Puerto Rico , to assure that Licensed Professional Counselors have met the training requirements to safely provide these services.

Life Coaching is a relatively new profession and is not yet regulated by state licensure. Therefore, anyone with or without coaching education can legally offer life coaching services. Over the last 20 years, however, certain national and international coaching organizations have worked diligently to establish educational requirements for the training of effective and safe professional coaches. Coaches that have gone through these training programs are certified as life coaches.

Because there are a number of different certifying organizations with differing educational philosophies and levels of training, credentialing is not uniform across all certified coaching services. In general, they need support around moving forward toward a life that is a better fit for them.

For these individuals, coaching may be a better fit than counseling. Consulting can be offered by anyone with expertise in any area.

There are no laws, regulations or educational requirements governing who can offer consultation or what qualifies as expertise. You may hire a consultant for anything from Finances, to Interior Design, to Corporate Management Re-structuring and anything in-between. When you hire a consultant you are asking specifically for their expert advice about the issue of your concern.

Generally, the long-term work and education in their area of specialization is the criteria by which you would pick a consultant.






















This is the main reason for the development of language to be able to express oneself in a manner that can be understood easily. Abstract and Concrete are two concepts that are related to language and are most commonly used in Linguistics and Semantics. Abstract is often considered as a noun or a concept. However, both refer to similar things and is easy to understand. Abstract nouns are taught at a younger age to kids and abstract concepts are mostly covered in college level classes and are used to dive deeper into understand language.

These concepts or nouns are intangible and cannot be touched, but instead only understood. Italian; for a similar result see Paivio, : differently from us, in a learning and recall task he contrasted only abstract and concrete nouns, rather than sentences. The third result is the marginally significant interaction we found between Language and kind of Verb. Integrating the last two findings, it seems that the abstractness vs. Let us now consider results from RTs together, integrating them with the results obtained from the ratings of the materials.

We will discuss how each theory could account for them and the problems each theory faces. We will also provide a possible neuroanatomical explanation of the results. According to both a amodal e. Therefore, for both amodal and modal views we should expect no difference between the four conditions, unless these differences are explained by association degree and familiarity for amodal theories, and by imageability for modal theories.

Therefore, the advantage of congruent over mixed sentences should be due to a higher association rate of these pairs compared to that of the mixed combinations. To check for this possibility, we calculated the familiarity and the probability of use score averages in each condition for the pairs selected for the behavioral experiment.

Ratings showed that, for both German and Italian participants, the advantage of congruent combinations over the mixed pairs is not explained by a supposed higher familiarity or higher probability of use of the first.

An approach based more on metaphors Lakoff, should account for the behavioral results considering the literality ratings that indirectly give us information on the degree of metaphoricity. Actually the advantage for the Concrete Verb — Concrete Noun combination can be explained resting on its high imageability, low metaphoricity rate, and precocious age of acquisition.

But neither the modal theory nor the approach based on metaphors was verified by our results on Abstract Verb — Abstract Noun pairs, which were neither imageable nor literal as opposed to being metaphorical but provoked a response that was as fast as that for Concrete Verb—Concrete Noun pairs.

Finally, an approach proposing that words are grounded in perceptual and especially in motor systems Glenberg, would predict a relationship between the behavioral data and the quantity of motion scores. This was not the case, however, as the amount of movement evoked by the sentence did not explain the pattern of results with RT.

Therefore, we can conclude that neither a strictly amodal nor a strictly modal theory adequately accounts for our results. Theories based on multiple types of representation — both in their non-embodied vs.

The interpretation that better accommodates our results assumes that abstract words are processed predominantly in the language system and concrete words are processed in the sensorimotor system to a larger extent. If processing occurs in separate systems, then the switching between concrete and abstract would imply not only conceptual costs, but also costs connected with switching between anatomical systems working in parallel.

Within each system concrete—concrete vs. Some recent pieces of evidence are in line with our results. Motor verbs produced greater signal changes than abstract verbs in several regions within the posterior premotor, primary motor M1 , and somatosensory S1 cortices, as well as in secondary somatosensory S2 cortex. More crucially, our interpretation is also consistent with results obtained in a brain imaging study performed using the same paradigm as the one used in the present work Menz et al.

In case of abstract verb plus abstract noun combinations, instead, there was a stronger engagement of the supramarginal gyrus SMG — typically involved in motor planning e. The advantage of non-mixed combinations AA and CC on the mixed ones AC and CA rules out the No difference views but can be accounted by both the Non-embodied 2 and the Embodied versions of multiple representations views 3. In order to disentangle them, the most critical result is the advantage we found when the first word was a concrete one.

A Non-embodied multiple representation view 2 has difficulties in explaining this result: since the task used in the present study is a linguistic one, it should be easier to process first words which activate linguistic information, i. However, the explanation based on LASS would be a posteriori.

The argument would be that, even if the task is a linguistic one, it requires deep semantic processing, and this might require more time for abstract than for concrete words. A more straightforward explanation of the longer RTs when the first word is an abstract rather than a concrete one derives from the WAT proposal. WAT assumes that both linguistic and sensorimotor processing have the same status — coherent with the advantage of the AA and CC pairs on the mixed pairs —, and it treats the issue of concepts representation as strictly related to their acquisition, stressing the different function of linguistic label for concrete vs.

So the advantage of concrete words when presented first would be due to the fact that abstract words are learnt differently from concrete ones, and often with the help of a verbal explanation see Borghi et al. It follows that for the acquisition of abstract terms the social experience due to the presence of others explaining to us specific word meanings is particularly crucial. Conversely German and Italian participants showed different patterns as far as Metaphoricity and Quantity of Motion ratings are concerned, thus they were differently influenced by the specific linguistic milieu.

The results of our behavioral study showed that participants were faster with congruent combinations, and that with mixed combinations they were faster when the first word was a concrete one, independently of the spoken language and of the word grammatical class. Results are in line with those embodied views, such as LASS and WAT, according to which both linguistic and perception and action experience play a role in accounting for word representation.

The WAT proposal is able to explain the advantage of the first concrete word better than the LASS view, ascribing it to the fact that abstract words require more time as a consequence of their peculiar acquisition modality. Our results have a variety of implications as to how concrete and abstract words are represented in the brain, as they suggest that linguistic and perception and action information are differently distributed in accounting for concrete and abstract meanings.

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Aziz-Zadeh, L.

A comparison of premotor areas activated by action observation and action phrases. Barsalou, L. Perceptual symbol systems. Brain Sci. Grounded cognition.

De Vega, A. Glenberg, and A. Graesser Oxford: Oxford University Press , — Pecher, and R. Binder, J. Distinct brain systems for processing concrete and abstract concepts. Bloom, P. How Children Learn the Meanings of Words. Boot, I. Representation of categories: metaphorical use of the container schema. Borghi, A. Taatgen, and H. Manipulating objects and telling words: a study on concrete and abstract words acquisition. CrossRef Full Text. Introduction to the special topic Embodied and Grounded Cognition.

Boroditsky, L. Nadel London: Macmillan , — Brysbaert, M. Age-of-acquisition effects in semantic processing tasks. Acta Psychol. Carey, S. Halle, J. Bresnan, and G. Celsis, P. Differential fMRI responses in the left posterior superior temporal gyrus and left supramarginal gyrus to habituation and change detection in syllables and tones.

Neuroimage 9, — Chatterjee, A. Disembodying cognition. Colombo, L. The influence of age of acquisition, root frequency, and context availability in processing nouns and verbs.

Brain Lang. Desai, R. Activation of sensory-motor areas in sentence comprehension. It is primarily used as the subject in a sentence, or as the object of a particular action or verb. However, what most readers find more difficult, is separating abstract from concrete nouns. Well, once you see examples of an abstract or a concrete noun, it will be easier to discuss their differences. But first, concrete nouns are those nouns that can be seen or perceived by the senses.

If you can see it, feel it, taste it, hear it or smell it, then that thing is most likely something that can be regarded as concrete. They are those that are described as tangible. Hence, it can be a person, a location, an object or any other tangible matter. On the contrary, abstract nouns from the term itself are those that pertain to other things that are not readily observed or perceived by the human senses. However, the other student who failed to be awarded was enveloped with envy. All of the living and nonliving physical objects in the universe are referred to by concrete nouns.

Abstract nouns are used to refer to everything else. Intangible things that exist as ideas or concepts are referred to by abstract nouns. Words like sadness , agility, philosophy, and ambitions are all abstract nouns. Of the two, concrete nouns are more common and are, generally, easier to understand.

If you can use any of your five senses to interact with something, that something will be referred to by a concrete noun. Although you cannot see air, you can still feel it and so the word air is a concrete noun. Even extremely small things like bacteria and atoms use concrete nouns.

Fictional or imaginary people, places, and things are also often referred to by concrete nouns. For example, the words Godzilla , Narnia, and fairy are all concrete nouns. Obviously, none of these things actually exist—sorry, Godzilla fans! However, as the logic goes you know how grammarians love their logic , they would all have a physical form if they did exist, and so we refer to these things using concrete nouns. Concrete nouns are numerous and extremely common. Many of the other types of nouns are also concrete nouns.

This means that concrete nouns may also be singular nouns or plural nouns. They may be common nouns or proper nouns. They may be collective nouns, countable nouns, or uncountable nouns. You can see how diverse concrete nouns are by checking out these examples:.