1. Are social networking Web sites appropriate for teenagers Or should Essay

1. Are social networking Web sites appropriate for teenagers Or should their access to such Web sites be restricted - Essay Example It is even appropriate for teenagers if they use it wisely, and should not be restricted. One of the major concerns relating to social networking websites is that teenagers without realizing it a public domain, post personal information. Parents especially are concerned about teenagers posting personal information such as sexual behaviors, religious orientation, violent information and substance abuse for the public to read. They become prey to pedophiles and other adults who can direct them towards negative social behaviors and lifestyles. However, according to Dr. Moreno, an assistant professor of pediatrics at University of Wisconsin-Madison (Gordon), such information can be used by parents and others who are concerned about teenagers to communicate with them. They can email teenagers to inform and guide them how to remedy risky behaviors and substance abuse. Another major concern regarding teenage access to social networking web sites is its impact on the teenagers in the future. Around 90 percent of teenagers in the United States have access to the Internet (Gordon) among which 55 percent have used social networks with online profiles. The majority of the profiles belong to older teenage girls registered with sites like MySpace and Facebook (Madden). Since these teenagers use the web sites to connect with friends, make new friends and flirt around, they generally maintain a casual attitude towards their personal information. Parents are concerned about the impact such information lying in public domain have on their future careers and life. But such concerns are also baseless because Maddens survey indicates that teenagers today are wiser than before. They have restricted access to their profiles and only let those who they are acquainted with to view them. These aspects lead the author to conclude that social networking web sites are not such a threat to teenagers as adults believe them to be. With a wise approach and

Reading Respond Essay Example | Topics and Well Written Essays - 250 words

Reading Respond - Essay Example In support for my stance, I would like to argue in favor of the federalist arguments. As they asserted, the established of a federal government resulted into the creation of a unified and strong national government. This refutes the anti-federalists’ claims that federation would lead to the emergence of a dictatorial regime and strip Americans of their individual rights. As exclaimed by James Madison in Federalist Number 10, the ratification of a national constitution would help in solidifying the country. It would be much beneficial since it would enable USA to eliminate individuals who might be having their own interests. If such a situation persisted, the nation would tear a part (Ball 177). Thus, it would result into a strong and much powerful nationalgovernment. In conclusion, I am strongly in support of the federalists. Although it might deny individual Americans of their liberties, it would still be the best regime since it advocated for one constitution and parliament to defend and represent the interests of all the Americans without discriminating on any

Microeconomics Essay Example | Topics and Well Written Essays - 750 words - 11

Microeconomics - Essay Example In other words, the firm should produce at a point whereby if it spends a dollar on a unit of labour, this should give us most output as a dollar it spends on extra capital. The above graph shows the point at which the firm minimizes the cost of production. In other words, the iso-cost line is in tangency with the isoquant. This is at the point whereby the last dollar spent on labour yields as must output as the dollar that the firm spends on capital. This is as the below function explains. The slope of the isoquant is the marginal rate of substitution of labour and Capital (MRTSKL). This should be equal to the slope of the iso-cost line (w/r). From the function, the last dollar spent on labour yields MPL/w that is equivalent to the output of the last dollar that the firm spends on capital MPX/r. At this point, the level of production is optimal. In other words, the firm minimizes the cost of production (Quirk, 2012). For a monopolistic firm that is facing a demand curve that is linear, it must produce at a point whereby the demand curve is elastic. In other words, the firm must produce at a point whereby there is a high demand elasticity of price change. This is because for the firm to increase its revenue, it has to sell additional units of output. In addition, for the firm to sell the additional units of output, it has to reduce its prizes per unit. This happens at the point where the demand curve is elastic. At this point, the sale for an extra unit yields more revenue since the percentage decrease of the price is lower than the percentage increase in the quantity demanded (Nicholson, 2008). At any other point other than the elastic point, decrease in price would not result to increase in the revenue. For example, at the inelastic point, the reduction in price would result in a reduction in revenue. This is because the percentage drop-off in price is higher in comparison with the

Walden pond Essay Example | Topics and Well Written Essays - 250 words

Walden pond - Essay Example s concentration is on the benefits of early awakening and natural experience at the time when the rest of the inhabitants of the village were in deep slumber. Thoreau utilizes the metaphor of awakening to refer to the variances that exist in him and those in town (Thoreau 145). As the piece suggests, the awakening is evidently in symbolism in the day and yearly seasons. The largest consciousness occurs during the morning extending to the spring. Thoreau associations of his experiences to spiritual awakening are evident throughout the story (Thoreau 147). He defies the earlier notions of men in town that certain requirements of the body such as food and shelter are significant to one’s life. His arguments for defying the natural necessities, as were the notions of men relate to nature. He states that the sunrays in some environments are sufficient to provide the desired warmth (Thoreau 147). His notion of riches in men is they are responsible for the decay of man in terms of spirituality. In his daily tasks, Thoreau relates his experience of life to nature. He depicts the ability of man to live in the middle of the usual world when he utilizes a greater segment of his life in the forest. The flora and fauna provide sufficient support and acceptance (Thoreau

Effects of technology and innovation on Pret a manager Essay

Effects of technology and innovation on Pret a manager - Essay Example Information technology plays an essential role in the unprecedented growth of retail restaurant industry. A retail restaurant industry is a segment of the business which comprises of individuals and organisation whose are mainly engaged with the selling of ready foods to the consumers. Pret a manger is one such organisation which belongs to this particular segment. The report will highlight on the areas such as the role of information technology in the retail restaurant industry as well as more specifically to the company pret a manger. Apart from this the project will also highlight on the different approaches of pret a manger in the context of sustainable development, use of IT and innovations. The report also proposes to highlight the benefits offered by information technology for different elements. Role of Information Technology in Restaurant industry In this sector the functions of Information technology and innovation is significant as it helps in the process of research and d evelopment, financial segment, product development, pricing, distribution and promotion. In other words information technology helps all the 4p’s of marketing mix. The industry plays an important role in the growth of the economy. It is one of the largest growing food types and intended for immediate consumption. The restaurant industry has some distinguishing factor within itself. The point of difference lies where some restaurants have their dedicated kitchens in their outlets while some other restaurants outlets get supply of the ready food from the factory. The industry includes members such as refreshment stands, fast food restaurants, full service restaurants, caterers and institutional food providers. Large fast food chain majorly contributes to the restaurant industry. In a recent study conducted, where it has been found that there were approximately 10 million retail restaurants available across the world. Among them most of the outlets were owned by individuals and single entities. But there are around 350 restaurants involved in chain business. The big names within this category are McDonalds, Kentucky Fried Chicken (KFC), Pizza hut, Dominos, Subway, Fingers and Del Taco, pret a manger among various other players. The noticeable foodstuffs includes pizzas, burgers, sandwiches, French fries, soups, chicken roasts, baguettes ice creams to the traditional Asian fast foods like noodles, fried rice and soups among the others. Franchise operation acts as the most vital component of this industry but some companies go for direct operation as well. The market shares of different companies are illustrated through a diagram:- Figure 1 (Source: pugetsoundoff, n.d.). Presently information technology is widely used in restaurant industry. The companies get hugely benefited through the proper execution of information system. The primary advantage of using information technology retail restaurant industry is that it gives a competitive advantage to the orga nization. The other advantage of using information technology in business lies in its capability to transmit data around the world within very less time. The industry is focusing more on IT to take advantage from it. The

What Human resource planning is Essay Example for Free

What Human resource planning is Essay Human resource planning is a strategy for the acquisition, utilisation, improvement and retention of an enterprises human resources (Mullins 2005). This essay will show in depth what Human resource planning is and the main stages involved in the planning process that insure the right mix of numbers and types of employees deployed across the firm, achieve the strategic goals of the organization. The Institute of Personnel and Development (IPD) defines Human Resource Planning as: the systematic and continuing process of analysing an organisations human resource needs under changing conditions and developing personnel policies appropriate to the longer term effectiveness of the organisation. It is an integral part of corporate planning and budgeting procedures since human resource costs and forecasts both affect and are affected by longer term corporate plans Human resource planning is not always certain, as it is not a science, mistakes are bound to occur. However, it can assist organisations to foresee changes and identify trends in staffing resources, and to adopt personnel policies which help to avoid major problems (Mullins 2005). A Human resource plan aims to reconcile differences between supply and demand. There are many factors that affect the demand for labour such as: the objectives of the company and its future plans; market demand for the companys product; the technology used by the company; the product range etc. Read more:Â  Human Resource Planning Process Similarly there are many factors that influence the supply of labour: company policies so far as they affect recruitment and selection, staffing levels, retirement and redundancy; the attractiveness of jobs in the company, including pay and other terms and conditions of employment; the skills available in the labour market; the price of houses in the locality etc. Human resource planning basically attempts to analyse these likely influences on the supply of and demand for people, with a view to maximise the organisations future performance by providing a framework for the effective management of people. Human resource planning is essentially planning for people in the organisation which basically involves trying to obtain: * the right people (assess future recruitment needs) * the right numbers (anticipate and, where possible, avoid redundancies) * with the right knowledge, skills and experience (formulate training programmes) * in the right jobs (develop promotion and career development policies) * in the right place (develop a flexible workforce to meet changing requirements) * at the right time (assess future requirements for capital equipment, technology and premises) * at the right cost (control staff costs while ensuring salaries remain competitive) All these factors are obtained in the key stages of Human resource planning. The first stage is the analysis of current staff in the organisation. This requires an effective system of personnel records and a staffing inventory including, details of gender, age, sex, ethnic origin, disability, job type, title or department, length of service, skill or educational level. Statistical techniques can also be used in the analysis such as: labour turnover; working hours lost due to sickness and absence; rate at which people are promoted; productivity per person; regression analysis; time series analysis; markov analysis of labour flows and rates etc. This first stage of analysis is very important as it defines the world in which the organization is planning for its manpower both externally and internally. It can show gaps in capabilities; lack of sufficient skills, people, knowledge etc. It can also show surpluses in capabilities that may provide opportunities for efficiencies and responsiveness skills, people and knowledge that may be underused, so the organization could consider new opportunities and ventures that would capitalize on these human resources. By doing an analysis on current staff, organizations are able to see if their work force is being utilized efficiently, with knowledge of any known future changes and further availability of key staff. The second stage of Human resource planning is the analysis of the organizations future plans. This includes consideration of changes and losses to the organization replacements for retirements, leavers, transfers and promotions; incremental improvements in staff performance and current programmes of staff development possible improvements in production, redeployment of existing manpower, planned changes in output levels; and external environmental factors such as the likely availability of labour, areas of potential new developments or markets, and changes in legislation planned introduction of new methods and equipment, planned reorganization of work, the impact of changes in employment law or collective agreements. Analysis of the organizations future plans is done in the form of ratio-trend analysis identifies areas where performance has improved or deteriorated over time; work-study or organization and methods (OM) techniques time-study and thorough analysis of the work done to establish the person-hours needed per unit of output; managerial judgment managers make estimates of labour needs, flows and availabilities, executive reviews, succession planning, vacancy analysis. The second stage shows managers any future emerging trends; the sort of workforce envisaged, the pros and cons of the different routes to get there; projections of numbers of staff required in the future, the utility of retraining, redeployment and transfers, what the appropriate recruitment levels might be. Such an analysis is important to any organization as it shows where the organization wants to be in the future. The third stage is the analysis of the matches or mismatches between Human resource supply and demand forecasts. This is basically a forecast of staffing requirements, aided by the results of the previous two stages, necessary to achieve corporate objectives by the target date. Forecasting of employee supply is concerned with predicting how the current supply of manpower will change over time, primarily in respect of how many will leave, but also how many will be internally promoted or transferred. These changes are forecast by analyzing what has happened in the past, in terms of staff retention and/or movement, and projecting this into the future to see what would happen if the same trends continued. This stage is very important in the Human resource planning process as it identifies critical shortfalls organizations can then recruit to meet a shortage of those with senior management potential; allow faster promotion to fill immediate gaps; develop cross functional transfers for high flyers; hire on fixed-term contracts to meet short-term skills/experience deficits. It also shows any surplus of labour allowing organizations to reduce staff numbers to remove blockages or forthcoming surpluses. The fourth stage is evaluating options if there were to be too many staff or to few staff in a given work area. If there were too many staff managers would have to consider natural wastage, redundancy (voluntary and compulsory), redeployment (including training, if needed), early retirement, dismissal, a freeze on future recruitment, part-time working or job sharing, elimination of overtime, move to more labour intensive methods or products, search for additional or new work. If there were too few staff managers would have to consider recruitment, redeployment, promotion or demotion, extension of the contracts of those about to retire, use of freelance, agency or temporary staff, overtime, productivity bargaining, automation or elimination of jobs, increase capital investment to increase productivity e.g. by introduction of new technology. This stage lets managers know what to expect in the future if these situations arise. The fifth and final stage is the selection of best alternatives and implementation of the human resource plan with monitoring and review procedures. Each plan developed by each organization will be unique because it will address and be dependent upon different issues. The implementation of the plan should be assessed regularly as part of the overall review of objectives. It serves as a tool to direct, manage and reinforce actions within the organization to address key management issues. Once prepared, its implementation and the subsequent monitoring of results are essential to addressing the issues effectively. Most organizations want Human resource planning systems which are responsive to change with assumptions being easily modified, that allow flexibility in supply and are simple to understand and use and not too time demanding. However to operate such systems, organizations need appropriate demand models, good monitoring and corrective action processes and an understanding on how resourcing works in the organization. If HRP techniques are ignored, decisions will still be taken, but without the benefit of understanding their implications. BIBLIOGRAPHY Management and Organizational Behaviour, Laurie J. Mullins, 7th edition Human Resource Management, Derek Torrington, Laura Hall Stephen Taylor College Handouts www.manpowerplanning.co.uk

Structure of Water and Its Dynamic Hydrogen Bond Network

Structure of Water and Its Dynamic Hydrogen Bond Network Introduction Water is essential to life as it is main constituent of cell in living organism. All biological macromolecules are almost inactive in its structural stability and functioning in absence of water. Water-Role in Life Water is key compound for our existence on this planet due to its ubiquitous presence on the earth and in living organisms. It is involved in all chemical, biological and geological processes. Due to its anomalous behavior it named as ‘matrix of life’, ‘solvent of life’. It plays a vital role from molecule and cell to tissues and organisms.1-4 In past several decades water has attracted the most scientific attention among the liquid due to its anomalous properties. It shows peculiar properties such as negative volume of melting, density maximum at 277 K, high melting and boiling point, high dielectric constant, minimum in the isobaric heat capacity and isothermal compressibility at 308 K and 319 K, respectively, high mobility transport for H+ and OH ions. The density of most liquids increases as it freeze but in case of water it expands about 11% due to which ice floats on water. It is the solvent of life and plays an important role in protein interactions a nd stabilization of protein structure. The work of Kauzmann gives the importance of water in protein folding and its interactions with water.5 Structure of Liquid Water The anomalous behavior of water is due to its unique ability to form a network of self associated molecules through hydrogen bonding. To study the structure of water and its dynamic hydrogen bond network large number of studies has been carried out.1-12 Still many aspects of water are not fully understand at molecular level. Dyke and co-workers first reported existence of H-bonding in vapor phase experimentally and measured the H-bond length as 2.98 Ã… in water dimer using molecular beam resonance technique which is higher than water in solid (for ice H-bond strength 2.74 Ã…) and liquid (2.85 Ã…) indicates the H-bond strength is weaker in Gas phase.13 From X-ray diffraction study of Bernal and Fowler and Morgan and Warren it is revealed that water is tetrahedrally coordinated through hydrogen bonds similar to the structure of ice I (Figure 1.1). 14-15The number of theories for the water structure has been proposed based on different techniques such as X-ray, neutron diffraction, dielectric relaxation and Raman spectroscopy. 16-22. These theories are generally classified into two models as a) Continuum model and b) Mixture model. Figure 1.1 Crystal structure of ice I at low pressure Continuum model In continuum model it is assumed that almost completely hydrogen bonded water molecules in a continuous network. Pople described the continuum model which is agreement with the observed variation of X-ray radial distribution function with temperature. 23According to Pople In continuous bonded network of the water bond bending and deformations occurs instead of bond water. Recently, Rice and Sceats 24proposed Random Network Model (RNM), which explains the continuum model and it is further developed by Henn and Kauzmann. 25This model is used for determining the heat capacity contribution due to water-water interactions. b) Mixture model In mixture model water consists of differently H-bonded species with zero, one or both hydrogens are engaged in hydrogen bonding. Franks and Wen 26 gives the â€Å"Flickering Cluster† model in which cooperative H-bonding is observed in water molecules. The co-operativity involves the hydrogen bond formation of one bonding site of water molecule contributes the delocalization energy to the molecule, which is involved in hydrogen bonding with another water molecule. According to Franks and Wen the clusters of the water molecules (bulk water) and free monomer molecules (dense water) are in equilibrium with each other. Samoilov 27 proposed the interstitial model in which water molecules are present in the cavities of ice lattice. Nemethy and Scheraga 28 used statistical thermodynamic model to calculate the Helmholtz free energy, internal energy and entropy as a function of temperature. Also the water hydrate model proposed by Pauling. 29 Now a days, theoretical techniques such as Monto Carlo, molecular dynamic simulation are used to study structural behavior of water. It provides most promising approach for the study of water at molecular level. Jorgensen 30 has developed transferable intermolecular potential functions (TIPS) suitable for use in liquid simulations for water. This potential has been used by Jorgensen and Madura 31 in MC simulation on liquid water to study the effect of temperature on vaporization, hydrogen bonding, density, isothermal compressibility and radial distribution functions. Number of water models such as SPC, TIP3P, TIP4P, TIP5P are developed for the molecular simulation of large biomolecular systems. Figure 1.2 Frank-Wen Flickering Cluster Model of Liquid Water 1.2 Hydrophobic Hydration and Hydrophobic Interactions The weak non-covalent interactions like van der Waals forces, H-bonding, ion-dipole, hydrophobic interactions are responsible for change in the structure of water around the solute molecule. The hydrophobic interaction is the prominent factor in the solvation of apolar or non-polar molecule. When a non-polar solute is dissolve in water there is large negative change in entropy. The disruption in the normal H-bonded structure is occurred and new H-bonded cage-like structure is formed around the solute molecule. So the structure formed is more ordered than the ordinary water. The term hydrophobic hydration is used when non-polar solute solvated by the cage of the solvent molecule around it. The short lived aggregates are formed around the solute molecule. The formation of polymeric aggregates strengthens the hydrogen bonding which gives negative contribution to ΔH0. 10 The hydrophobic interactions are important in a field of biochemistry for the purpose of conformational stability of biological macromolecules, protein folding, aggregation, ion transport, drug delivery as well as in industry. Usually hydrophobic hydration occurs in non-polar compounds such as alcohols, ethers, and amines. The tetraalkylammonium (TAA) salts with larger cation also shows the hydrophobic hydration effect. Kustov gives the effect of size of cation on the hydrophobic hydration. He studied the specific heat of solution for the higher size cation TAA salts and observed that as the size of cation in salt increases the specific heat of solution and hydration increases upto the tetrapentylammonium salts and then decreases. As the specific heat of solution increases the hydrophobic hydration increases. For the hexyl and heptyltetraalkylammonium salts the ΔC0p decreases so the hydrophobic hydration weakens. Thus hydrophobic hydration depends on the size of cation of TAA. Th e hydrophobic interaction is best explained by Goring et al. by studying the interaction of non-electrolytes in aqueous solutions by dilatometrically. They compared the apparent specific volume (à Ã¢â‚¬ ¢2) relative to apparent specific volume at 0  ºC as function of temperature for non-electrolytes and showed that 1-butanol behaves like hydrophobic compound and acts as structure maker in aqueous solution while glycerol with polar groups disrupts the structure of water. The hydrophobic compound shows the slope dà Ã¢â‚¬ ¢2/dT is less than the corresponding thermal expansions of pure compound while it greater for the hydrophilic compounds. Madan and Sharp explained that non-polar solutes have large capacity heat of hydration ΔCp while for polar solutes it is small negative. The large change in heat capacity at high temperature is due to unfavorable enthalpic interacions and not due to entropy change. The effect of salt on the hydrophobic hydration was carried out by Talukdar and Kundu and observed that hydrophobic cation induce more hydrophobic hydration in aqueous NaNO3 solution than in pure water. Rossky et al. with the help of computer simulation studied the hydration properties of the interfaces between the water and the hydrophobic surfaces for the active peptide melittin in its monomeric and dimeric form and concluded that hydrophobic hydration is depends on the surface topography of biomolecule. 1.3 Spectroscopic study of water Due to its various anomalous properties and great importance in the several field water is the most studied compound. To study the structure of water, number of spectroscopic techniques such as IR, Raman, neutron diffraction, X-ray scattering, NMR spectroscopy etc. have been used still today. The spectroscopy and scattering studies provides the structural information of water at molecular level. Bernal and Fowler analyzed the X-ray diffraction of water and investigated water as distorted quartz-like. The hydrogen bond network in water is found to be tetrahedral in nature and each water molecule can be bound with another four water molecules i.e. each water molecule is double proton donor and double proton acceptor. While recently, Wernet et al. studied the structure of water by soft X-ray absorption spectroscopy and X-ray Raman scattering and investigate that hydrogen bond network in the water consists of only two strong hydrogen bonds and one act as proton door and another as proton acceptor. This controversial result of structure of water from earlier study makes the scientist to study the water structure more interesting. In this context, number of scientists have been studied the water structure by X-ray absorption spectroscopy. Infrared and Raman techniques are also the important sources of the information of hydrogen bonding in water. Above the absolute temperature all the atoms in the molecules are in continuously vibrating motion with respect to each other. Any molecule absorbs the radiation when frequency of a specific vibration is equal to frequency of the IR radiation directed on the molecule. Each atom has three degrees of freedom, corresponding to motions of the three Cartesian coordinate axes (x, y, z). Total no of coordinate values is 3N for a molecule containing N atoms. Thus, Water has 9 degrees of freedom with C2v symmetry. It shows the two stretching vibrations (symmetric and asymmetric), one bending vibration, three hindered rotations (librations), and three hindered translations. Earlier, number of research papers has been published on the study of the structure of water in solid, liquid as well as in vapor phase by IR and Raman technique. The fundamental IR frequencies for the H2O and heavy water is as shown in Table Table: Fundamental vibrations of liquid ordinary water and heavy water Vibration(s) liquid H2O (25  °C) liquid D2O (25  °C) liquid T2O v, cm-1 ÃŽ µÃŽ », M-1cm-1 v, cm-1 ÃŽ µÃŽ », M-1cm-1 v, cm-1 v2 1643.5 21.65 1209.4 17.10 1024 combination ofv2+ libration 2127.5 3.46 1555.0 1.88 v1,v3, and overtone ofv2 3404.0 100.61 2504.0 69.68 2200 http://www1.lsbu.ac.uk/water/water_vibrational_spectrum.html Walrafen investigated the structure of water by Raman spectroscopy in the intermolecular as well as intramolecular vibrational region. From Raman scattering it is observed that for liquid H2O and D2O a broad weak hydrogen bending band at 60 cm-1 and it is observed to be decreases as temperature rise, the band near 170 cm-1 is produced by the stretching motion of O-H band in water molecule. This is also decreases as increases in temperature which indicates the structural breakdown of water units. These vibrations are the intermolecular vibrations of water which are observed in the restricted translational region. The intramolecular vibrations of water occurs in the range of 2000-4000 cm-1.Walrafen studied the Raman spectra of 50 mole % solution of H2O and D2O in the intramolecular region in which principle contribution of HDO vibrations are studied. The two maxima at 3415 ±5 cm-1 and 2495 ±5 cm-1 are referred due to OH and OD stretching vibrations of HDO, and of H2O and D2O. Also the weak band at 2860 ± 10 cm-1 arises from the overtone of the fundamental intramolecular bending vibration of HDO near 1450 cm-1. When H2O, D2O mixture studied at 32.2 to 93  ºC, the isosbestic point observed at 2570 ±5 cm-1 indicates the equilibrium exists between hydrogen bonded and nonhydrogen bonded OD stretching vibrations. Senior and Verrall observed same results when studied the HDO stretching at temperature 29 to 87  ºC by infrared spectroscopy. Bakker et al. studied the lifetime of the OH-stretching vibration in the water as a function of temperature by using femtosecond mid-infrared pump-probe spectroscopy and observed that it increases from 260 ±18 (at 298 K) to 320 ±18 (at 358 K) Recently, molecular dynamic simulation is becomes the fast method for the structural detection at molecular level. Xantheas et al. used the ab initio method to obtain the vibrational frequencies as well as zero point energy for the water clusters and its isomers with the help of second-order Mà ¸ller–Plesset perturbation level of theory (MP2) with the augmented correlation consistent basis set of double zeta quality (aug-cc-pVDZ). 1.3.1 Near-Infrared spectral study of water and aqueous solutions Near-Infrared consists of the region 800-2500 nm (12500-4000 cm‑1) in the electromagnetic spectrum. In this region molecule have energy sufficient to excite first (2ÃŽ ½), second (3ÃŽ ½), and higher overtones (nÃŽ ½) vibrations. The overtones observed in the molecule when the intermolecular vibrations of the molecules do not obey the Hook’s law. The band is more intense when the greater the anharmonicity. The combination bands are also observed in the same region. Near infrared spectroscopy is the basic tool to study the hydrogen bonding in molecule. Earlier, the scientist Luck studied water and alcohol in the NIR region and observed that the strength of cooperativity of H-bond in water is about 250 % stronger than H-bond in a monomeric water. Different species of water present in the cooperative H-bond such as H-non bonded, H-bond strong and H-bond weaker. Ozaki et al. studied the structure of water by using two analytical techniques such as two dimensional correlation spectroscopy and principal component analysis in which they showed the two-state water model by measurements of the water at different temperatures from 6 to 80  ºC. Two bands are observed at 1412 and 1491 nm due to two different species of water i.e. weak H-bond and strong H-bond respectively. The species observed at 1438 nm which has no much effect of temperature which suggested may be due to distorted two-state model of water. The water at high temperature and pressure rem arkably exhibits different properties than at ambient temperature. It becomes good solvent for hydrophobic substance such as benzene and hydrocarbons which are non-polar gets completely miscible at certain temperature and pressure. The effect of high temperature as well as pressure has been given by Ikawa et al. in the range of 5500 to 7800 cm-1. They observed the band at 7000 cm-1 gradually shifts to higher wavenumber is due to free OH vibrations and at 673 K and 400 bar pressure the absorption band retain the rotational features i.e. water molecule quite rotate freely though there is collision with other molecules. Recently, Near-Infrared spectroscopy has been used extensively for chemical analysis and characterization. The applications of NIR spectroscopy in various fields have attracted the scientific community. It is also used in the determination of moisture content in food samples. It can be used to probe the hydration effects in aqueous solutions of salt. Wu et al. have studied the effect of ethanol on the structural organization of aqueous solutions of [Bmim][BF4] and [Amim][Cl] using one-dimensional and 2D correlation NIR spectroscopy. They showed that hydrogen bonding between water and ILs gets reduced in presence of high concentration of ethanol32 and can be used to remove water as an impurity in hygroscopic ILs. They also used this technique to study aggregation behavior of ILs in water. NIR spectroscopy has been used previously for the study of hydration by McCabe and Fisher in which they have studied the hydration of perchlorate and alkali halides in aqueous solutions by using excl uded volume. Koga et al. have given the excess molar absorptivity in the range of 4600-5500 cm-1 i.e. (ÃŽ ½2+ÃŽ ½3) combination band of water for the Na halides and concluded that the Br‑ and I form the hydrogen bond directly with the water network which is different than the Cl ion. Bonner and Woolsey have obtained the hydration number for some alkali halides by using the 958 nm (2ÃŽ ½1+ÃŽ ½3) combination band of water. By applying their method, Hollenberg et al. calculated the hydration number for amino acids and carbohydrates The new concept introduced by Noda in 1993 i.e. two dimensional correlation spectroscopy has attracted many scientist to study effect of solutes on the structure of water by IR as well as NIR spectroscopy. This technique becomes powerful tool for the elucidation of spectral changes induced by temperature, time and concentration. Noda et al. studied the structural and crystallization dynamics of poly(L-lactide) during isothermal cold crystallization by two dimensional correlation spectroscopy. An interpretation of the evolution with temperature of the ÃŽ ½2+ÃŽ ½3 combination band in water V. Fornà ©s and J. Chaussidon, J. Chem. Phys. 68, 4667-4671 (1978) Near-infrared spectroscopic study of water at high temperatures and pressures Yusuke Jin and Shun-ichi Ikawa J. Chem. Phys., 119(23), 12432-12438, 2003. The importance of cooperativity for the properties of liquid water W.A.P. Luck Journal of Molecular Structure, 448 (1998) 131 142. Studies on the Structure of Water Using Two-Dimensional Near-Infrared Correlation Spectroscopy and Principal Component Analysis V. H. Segtnan, S. Sasic, T. Isaksson, Y. Ozaki Anal. Chem. 2001, 73, 3153-3161