Write a 3 page response to an argument presented in the reading Essay

Write a 3 page response to an argument presented in the reading - Essay Example The author points out however that happiness is a subjective feeling and what makes one person happy does not necessarily mean it will make the other happy. Happiness is a subjective feeling which has never really been completely achieved by man throughout history. In fact as time goes and years passes, happiness continues to dwindle and people become more frustrated and cases of neurotics increase. Civilization has in fact contributed greatly to the reduction of happiness in man. This is so because humans are under more pressure now and life is much more complicated than it was during the earlier years of primitive living and conditions. This is evidenced by the writing of the writer â€Å"†¦what we call our civilization is largely responsible for our misery, and that we should be much happier if we gave it up and returned to primitive conditions (Freud 33).† There is an argument that civilization has brought about technology and made man superior to the nature but this in the end has not brought happiness â€Å"one would like to ask: is there, then, no positive gain in pleasure, no unequivocal increase in my feeling of happiness†¦?† (Freud 35). Even with development of fancy technical equipment and gadgets such as ships and telephones, people are still miserable as they do not get to be with their loved ones who are away. The technology has made people grow apart and lifestyles to change for the worse. The technological advancements and the civilizations mentioned in the article lead to development of difficult situations and restrain the life of people even more and further reduce their happiness level. Happiness as mentioned in the article is a subjective feeling and which cannot be forced on people and cannot be experienced by everyone. According to Pascal (2008), happiness is defined differently by different people and what may cause happiness to one person may not necessarily emanate the

Business, its's context and stakeholders Essay Example | Topics and Well Written Essays - 750 words

Business, its's context and stakeholders - Essay Example The overall growth of continental tourism was double the global average. As foreign tourists enjoyed the increasing number of African states, locals began exploring the beauty of neighboring nations. This booming industry is sure to lead to further economic growth in the region even if the increasing level of consumption of resources and the pressure it puts on the natural environment appear as obstacles. The good news is that these obstacles can be dealt with. Furthermore, the expansion of the African tourism industry makes way for greater understanding between the peoples of the world. The African tourism sector is a large scale enterprise involving an enormous number of stakeholders. In the year 2005, the sector provided 3,877,200 jobs directly and an incredible total of 10,647,000 jobs indirectly. The total travel and tourist revenues expected to be generated in 2005 were $73.6 billion of Gross Domestic Product. In particular, Kenya and Mozambique have seen the most rapid growth in tourist activity in recent years. In 2004 the number of visitors to Kenya increased by twenty six percent and the Kenyan government declared in 2005 that the country has earned more from tourism at this time than ever before. In Mozambique – very popular among South African tourists – tourist activity rose by an impressive thirty seven percent. In North Africa, Egypt experienced a six percent increase, Morocco a five percent increase, and Tunisia an eight percent increase. Things did not go as well for the tourism industry between the years 2002 and 2003. Revenues were massively reduced by terrorism and the wars on terror that began in the year 2001. The tourist hotspots of East Africa, namely Kenya and Tanzania, suffered a number of bomb attacks also. All the same, the African tourism industry is on the rebound. The secretary-general of UN’s World Tourism Organization

Macbeth Critical Approach Essay Example for Free

Macbeth Critical Approach Essay The tragic story of Macbeth is a tale of a man, who spirals into a deep, dark, depressing life attempting to escape his unhappy, mundane, unsatisfied existence. All of this would not be possible without the assistance of three wicked witches. These witches serve as a catalyst for the evil brought out of Macbeth, which becomes amplified by his own heinous actions. While Macbeth is cold hearted and dark minded his intentions were not awakened till he encountered the witches who changed his coarse of history. †Stay, you imperfect speakers. Tell me more. By Sinel’s death I know I am Thane of Glamis but how of Cawdor?† After the witches tell him he is destined to be king, Macbeth becomes interested. He fell for evils trap and now hopelessly tumbles down the rabbit hole. Macbeth knows what he is destined to be but Duncan stands in his way. This leads Macbeth to the first step of his corruption, through his sinister thoughts he realizes he is descending into darkness. â€Å"Stars, hide your fires! Let not light see my black and deep desires† Fearing he will be discovered for his true self, he pleas to the stars so that they may dim their lights. This fear is what drives him further into madness and deeper into his own despair. Macbeth has destroyed everything that has mattered to him, his best friend, his king, his wife, and his relationship with his people. He has ruined so much that it becomes clear to him that he was much happier in his previous status. â€Å"For mine own good, all causes shall give way. I am in blood stepp’d in so far that, should I wade no more, returning were as the tedious as go o’er† By comparing his own actions to a river of blood he hints to the fact that once a man kills for his own single benefit, there is no going back. He has gone too far and would be nearly impossible to undo what has been done and seems too tough to live with.

Performance of Raspberry-Like Gold Nanoparticles (Au RLNPs)

Performance of Raspberry-Like Gold Nanoparticles (Au RLNPs) Improvement of Stability and Catalytic Performance of Raspberry-Like Gold Nanoparticles by Silica Coating High Catalytic Performance of Raspberry-Like Gold Nanoparticles (Au RLNPs) and Enhancement of Stability by Silica Coating Kiouk Seo, Hien Mai Duy and Hyojong Yoo* Abstract. The raspberry-like gold nanoparticles (Au RLNPs) synthesized through the reduction of HAuCl4 by the use of NaOH and Brij35 surfactant show high catalytic activities in the reduction of 4-nitrophenol and ethanol electrooxidation. The enhanced catalytic activities of Au RLNPs are mainly due to their high surface area. However, Au RLNPs easily change to the spherical or aggregated nanoparticles in a treatment with acids, thiols, and cationic surfactants (ex, CTAB)), and are difficult to sustain the catalytic activities. To improve the stability and applicability, Au RLNPs core–silica shell nanoparticles (Au [emailprotected]2 NPs) were successfully synthesized in solution without losing their original morphologies through a simple solution-phase sol-gel process with the assistance of surface-stabilizing polymeric agent (Polyvinylpyrrolidone (PVP)). In comparison with Au RLNPs and other Au nanoparticles, Au [emailprotected]2 NPs could be more easily recovered and recycled in the repeated catalytic reactions. Keywords Raspberry-like gold nanoparticles (Au RLNPs), Silica coating, Catalytic reduction, Ethanol electrooxidation, Polyvinylpyrrolidone (PVP) 1. INTRODUCTION Noble metals have gained much attention over the past two decades due to their potentials in a wide variety of applications including energy conversion[1][2], chemical and biological sensing[3], and bioengineering[4]. Tremendous research efforts have been devoted towards the exploration of how to design nanomaterials with varied topographies that has led to the discovery of their fundamental size-, shape-, and component-dependent properties and the development of new applications[5][6][7]. Moreover, it has theoretically and experimentally found that arrays of asymmetric surface features, particularly deviations from spherical geometry, mainly impart unique anisotropy in material properties7. Apparently, to achieve such desired anisotropic topographies strict control is required. Conversely, this leads to a generation of particles with novel properties from the same materials by simply tuning the particle morphology. Furthermore, anisotropic geometry offers numerous unique features an d functionalities that are either difficult to obtain or even hardly obtained by simple size-tuning in spherical counterparts. Morphology of nanoparticles also strongly affects the catalytic performance. This is due to the surface anisotropy possessing a high density of low-coordinated atoms such as steps, edges, and defects serving as catalytically active sites which can markedly affect chemical and physical properties of nanoparticles[8]. Among those colloidal gold (Au) nanoparticles exhibit not only highly tunable architecture-dependent optical properties but also show excellent performance and high selectivity in a variety of heterogeneous green catalytic processes [ref][9][10]. For a better stability, catalytic performance, and reusability of Au nanoparticles, engineering new nanocatalyst system is thus considered one of the most critical tasks. Recently, in our group, we successfully synthesized raspberry-like gold nanoparticles (Au RLNPs) with rich edges and high surface areas through the reduction of HAuCl4 by Brij35 surfactant under basic condition in a controllable fashion [ref]. The synthesized Au RLNPs possess high surface areas and show the unique, highly-red shifted surface plasmon resonances (SPRs) due to the rough, raspberry-like surface of Au RLNPs. These structures also have high surface energies due to their plenty of tips and edges. These nanoparticles are stable and retain their raspberry-like geome try in basic or neutral conditions; however gradually reshape to the spherical geometry under a specific circumstance such as acidic condition. In order to exploit the unique shape-dependent properties of the Au RLNPs in a variety of catalytic applications, further modifications of nanoparticles such as endowing core-shell structure are thus required. Metallic nanostrutures of several different shapes have been coated with silica since the silica shells used as the coating material show substantial enhancement in the stability of the metal cores, particularly in aqueous solvents. Moreover, metallic nanostructured surface can readily functionalized by subsequently coating with silica and using silane-coupling reactions [ref]. Additionally, silica shells are chemically inert, transparent in the visible and IR regions of the spectrum, and readily converted to mesoporous layer [11]. For the direct encapsulation of Au nanoparticles within silica shells, the conventional techniques is employing coupling agents with silane group for the growth of silica shells on the surfaces of as-synthesized Au nanoparticles via the Stà ¶ber method [ref]. However, we experimentally found that directly applying this method to coat Au RLNPs brought challenges since the unusual size changes of Au RLNPs without disturbing the rough surface occurred. Herein, we report the synthesis of Au [emailprotected]2 NPs in solution through a simple solution-phase sol-gel process. To protect the high-energy surface of Au RLNPs, Polyvinylpyrrolidone (PVP) was used prior to the condensation of TEOS as a polymeric stabilizer. Au [emailprotected]2 NPs showed great enhancement in stability under the strongly acidic condition. The catalytic performance, recovery, and reusability of both Au [emailprotected]2 NPs and Au RLNPs were investigated using the reduction reaction of 4-nitrophenol (4-NP) as a reaction model. We also found that and Au RLNPs were capable of electrocatalyzing alcohol oxidation reactions in alkaline media. 2. EXPERIMENTAL DETAILS 2.1. Reagents Polyoxyethylene glycol dodecyl ether ((C2H4O)23C12H25OH, Brij35, Acros Organics), hydrogen tetrachloroauratetrihydrate (HAuCl4†¢3H2O, 99.9%, Sigma–Aldrich), polyvinylpyrolidone ((C6H9NO)n, PVP10, average mol wt 10,000, Sigma–Aldrich), 4-nitrophenol (O2NC6H4OH, 99%, Sigma–Aldrich), sodium hydroxide (NaOH, 97%, Sigma–Aldrich), ammonium hydroxide (NH4OH, 28-30 wt % ammonia, Sigma–Aldrich), tetraethyl orthosilicate (Si(OC2H5)4 98%, Sigma–Aldrich), hexadecyltrimethylammonium bromide ((C16H33)N(CH3)3Br, 99%, Acros Organics), (3-mercaptopropyl)methyldimethoxysilane (CH3Si(OCH3)2CH2CH2CH2SH, 95%, Alfa Aesor), HCl, HNO3, and ethyl alcohol were used as received. All stock solutions were freshly prepared before each reaction. Prior to use, all glassware was washed with Aqua Regia (volume ration of 3:1 of concentrated HCl and HNO3; Caution: Aqua Regia is highly toxic and corrosive and must be handled in fume hoods with proper personal protection equ ipment) and rinsed thoroughly with deionized water. 2.2. Synthesis of raspberry-like gold nanoparticles (Au RLNPs) Au RLNPs with the mean size of approximately 60-70 nm were prepared according to our previous literature [ref]. Briefly, an aqueous Brij35 solution (1 mL; 19.3 wt%) was well mixed with NaOH (aq) (100  µL; 100mM) by shaking for 30 seconds. To this mixture, HAuCl4 (aq) (50  µL; 10 mM) was added, and shaken vigorously for 1 minute. The pale yellow reaction mixture then turned to blue within 5 minutes at room temperature. To make sure a complete reaction, this mixture was allowed to react for over 20 minutes before being collected by centrifugation (5 min; 13500 rpm), and redispersed in deionized water. 2.3. Synthesis of Au RLNPs@SiO2 NPs The preparation of Au [emailprotected]2 NPs was as follows: firstly, the as-synthesized Au RLNPs were dispersed in 1 mL of deionized water. Next, 0.235 mL polyvinylpyrrolidone (PVP10) aqueous solution (128 mg of PVP10 in 10 mL of deionized water) was added to the Au RLNPs solution. The resulting mixture was then stirred at room temperature for 12 hours to ensure complete adsorption of PVP on Au RLNPs. Afterward, the PVP-capped RLNPs were purified by centrifugation (5 min; 13500 rpm), and redispersed in solvent mixture containing 1 mL deionized water and 7 mL ethyl alcohol. In the next step, tetraethylorthosilicate (TEOS, 0.03 mL) and ammonium hydroxide (0.2 mL of 14.8 M NH4OH (aq.)) were sequentially added to the PVP-capped Au RLNPs aqueous solution and the reaction mixture was further stirred at room temperature for 4 h. After the completion of the reaction, the resultant Au [emailprotected]2 NPs were centrifuged, and purified by repeatedly washing in ethanol and centrifugation. 2.4. Catalytic reduction of 4-nitrophenol The catalytic reduction of 4-nitrophenol (4-NP) over nanoparticles in the presence of NaBH4 was carried out to assess the catalytic activity. In a typical experiment, 2 mL of deionized water, 1.7 mL of 0.2 mM 4-NP, and 1 mL of 15 mM NaBH4 solutions were mixed in a quartz cuvette followed by the addition of 1 mL of Au [emailprotected]2 NPs solution. The color of solution changed gradually from yellowish to clear as the reaction proceeded. UV-Vis spectra were recorded at a 5-minute intervals to monitor the progress of the reaction. 2.5. Ethanol electrocatalytic oxidation All electrochemical measurements were carried out in a conventional three-electrode cell at ambient temperature (~25ËÅ ¡C) using WPG 100e Potentiostat (WonAtech Inc.). The fabrication of working electrode is as follow: Prior to electrochemical experiments, glassy carbon (GC) electrode was sonicated in ethanol and deionized water successively. 10  µL of RLNP suspension was dropped onto carbon disk and the solution is dried at room temperature. Platinum and Ag/AgCl were employed as counter and reference electrodes, respectively. With an aqueous mixture of 0.5 M KOH and 1.0 M ethanol as electrolytes, at least 10 cycles of cyclic voltammetry were carried out before recyclable voltammograms were recorded. Throughout the cyclic voltammetry experiments, the potential window was between -0.2 V and 0.8 V. Prior to experiments, the electrolytes were degased by bubbling with nitrogen for 30 min. 2.6. Characterization The nanoparticles were imaged using a Hitachi S-4800 scanning electron microscope (SEM), and a JEOL JEM-2010 Luminography (Fuji FDL-5000) Ultramicrotome (CRX) transmission electron microscope (TEM). Samples were prepared for TEM by concentrating the nanoparticle mixture by centrifuging twice for 5 min at 13500 rpm with resuspension in 100 ÃŽ ¼L nanopure water and immobilizing 10 ÃŽ ¼L portions of the solution on Formvar-coated Cu grids. Extinction spectra were recorded with a UV-vis spectra spectrometer (UVIKON XS). Solution pH was measured using an Orion 420 A+ pH meter. 3. RESULTS AND DISCUSSION Initially, the highly monodisperse Au RLNPs with controlled diameters ranging from 60 to 70 nm (Fig. 1a and S1) [Images and size distribution of RLNP] were prepared according to protocols developed previously.ref Polyvinylpyrrolidone (PVP) was then employed as a primer and a direct growth of silica onto the PVP-capped Au RLNPs to obtain Au [emailprotected]2 NPs was carried out using solution-phase sol-gel method with TEOS as a precursor. PVP, which have been often used as a surface-stabilizing polymeric agent to prepare spherical Au core – SiO2 shell nanoparticles,ref was used to protect the high-energy surface of Au RLNPs. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images of Au [emailprotected]2 NPs (Fig. 1b-d) show the well-established core-shell structure in which the as-synthesized Au RLNPs were uniformly and individually encompassed within silica shells whereas still sustaining their rough and edge-rich surfaces advantageous to catal ytic performance. The average diameter of individual Au [emailprotected]2 NPs was xxxxx (xxx particles was evaluated, Fig 1e). With respect to RLNPs cores, the average size was nearly similar to that of RLNPs before silica-coated (Fig S1). The UV-Vis spectra plotted in Fig. 1f, a noticeable broadeness in the corresponding surface plasmon bands in Au [emailprotected]2 NPs compared to that of Au RLNP were observed. It is well know that the weaker and broader surface plasmons are observed,, due to the change of refractive index of surrounding environment after silica coating step[b1].ref [Fig 1] High catalytic efficiency of Au nanocatalysts were mainly due to their high roughness and plethora of edge-rich surfaces and corners.ref Thus it necessitates assessing whether catalytically active surfaces of the synthesized nanoparticles are stable in various environments. HCl, CTAB, and MPTS were introduced into the colloidal solution of the as-synthesized RLNPs in order to understand the stability of Au RLNPs in different ambiences. Fig. 2 shows typical SEM images displaying changes in geometries of Au RLNPs as adding diverse reagents. It is experimentally observed that Au RLNPs collectively changed to spherical nanoparticles with the smooth surface as adding HCl (Fig S2)ref corresponding to a blue-shift in UV-Vis spectrum toward approx. 520 nm which can be assigned to the surface plasmon resonance (SPR) of gold nanospheres. This phenomenon could be attributed to the oxidative etching effect which has been employed to control the size of other noble nanostructures in recent papers [12] [13] [14]. Meanwhile, as shown in Fig. 2a, much agglomeration occurred as adding CTAB. However, it is interesting to note that the aggregation also occurred without disturbing their raspberry-like motifs, as adding MPTS (Fig. 2b). The SPR changes shown in UV-Vis spectra (Fig. 2e) further confirmed this aggregation. The introduction of such reagents, which might affect the hydrodynamic layer thickness of Au RLNPs, accounts for this unusual alteration in particles size. The [emailprotected]2 NPs however exhibited no geometrical change when HCl was added. As shown in Fig. 3a, SEM images show that the [emailprotected]2 NPs still retained their original raspberry-like morphology without any observable agglomeration. This observation is also consistent with results obtained from UV-Vis spectra (Fig. 3b) that there was no detectable shift in SPR peak of the core-shell nanoparticles after HCl had been added. Ethanol comprises a lower toxicity, a higher theoretical energy density (8.01 kW.h kg-1) than methanol (6.09 kW.h kg-1) and formic acid (1.74 kW.h kg-1), and fewest environmental issues[15] [16]. Moreover, ethanol is a renewable source that can be easily produced massively from the chemical industry or fermentation of biomass. In this study, electrooxidation of ethanol [HM2]in KOH solution was performed to probe relative electrocatalytic activities of the synthesized nanoparticles. Fig. 4 shows the cyclic voltammograms of RLNPs, HCl-etched RLNPs[HM3], and [emailprotected]2 NPs for ethanol electrooxidation. It is clear that the RLNPs exhibit almost substantially higher electrocatalytic performance with a forward oxidation current (iF) value of 0.56 mA compared to that for HCl-etched RLNPs (iF, 0.07 mA). The high electrocatalytic activity of the RLNPs is attributed to the existence of high energetic surfaces in raspberry-like morphologies. However, [emailprotected]2 NPs did not show an y electrocatalytic activities over the entire potential window. This is explained that silica shells hindered the electron transfer between gold cores and electrode due to silica shells are insulating. The catalytic reduction of 4-NP to their corresponding derivatives, 4-aminophenol, in the presence of NaBH4 was chosen as a model reaction in order to evaluate the catalytic activity of Au [emailprotected]2 NPs. It is well established that the reduction of 4-NP by NaBH4 is thermodynamically feasible but kinetically restricted without a catalyst. The reduction progress was monitored by UV-Vis absorption spectra after the addition of catalysts. The characteristic absorption peak of 4-NP aqueous solution was located at 400 nm after NaBH4 had been added. First of all, in the absence of catalysts the reduction reaction of 4-NP did not proceed even with a large excess of NaBH4. However, when catalysts were introduced, the reduction of 4-NP was clearly observed. The absorbance of the reaction mixture at 400 nm gradually decreased as the reaction proceeded, along with the concomitant increase of 300 nm peak, corresponding to 4-aminophenol. Fig. 4 illustrates the UV-Vis spectra changes of 4-N P as a function of reaction time in the presence of Au RLNPs (Fig. 4a) and Au [emailprotected]2 NPs (Fig. 4c). Fig. 4e shows the change in concentration of 4-NP was plotted versus time, providing a general view to compare catalytic activities of Au RLNPs and Au [emailprotected] ­2 NPs (Ct: absorbance of 4-NP at specific reaction time, t; C0: initial absorbance of 4-NP as catalysis starts). The Ct/C0 is measured from the relative intensity of absorbance (At/A0). As can be seen, Au RLNPs exhibited comparatively higher catalytic activity than their core-shell counterparts, possibly owning to silica shell hindering the diffusion of reactants onto inner gold active sites. Interestingly, in the presence of HCl, the catalytic activity of Au [emailprotected]2 NPs however was not only improved, but also dramatically higher than that of Au RLNPs which was suffering from the morphological change, leading to severe degradation of active sites (Fig. 4e). In addition, we also investigated the d egree of reusability of the two catalysts. As shown in Fig. 5, the catalytic efficiencies of Au RLNPs decreased remarkably after reused 3 times whilst Au [emailprotected]2 still retained good catalytic performance for as far as 7 cycles. It is apparent that the stability and reusability of Au RLNPs were improved significantly after encapsulated into silica shell, resulting in maintenance in their catalytic activity. 4. CONCLUSIONS Acknowledgments: This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2011-0008968). This research was also supported by Hallym University Research Fund 2012 (HRF-G-2012-3) References and Notes 1 [1] Linic, S.; Christopher, P.; Ingram, D. B. Nat. Mater. 2011, 10, 911. [2] Jiang, R.; Li, B.; Fang, C.; Wang, J. Adv. Mater. 2014, DOI: 10.1002/adma.201400203. [3] Zhang, Y.; Guo, Y.; Xianyu, Y.; Chen, W.; Zhao, Y.; Jiang, X. Adv. Mater. 2013, 15, 3802. [4] Tokel, O.; Inci, F.; Demirci, U. Chem. Rev. 2014, 114, 5728. [5] Tawfick, S.; Volder, M. D.; Copic, D.; Park, S. J.; Oliver, R.; Polsen, E. S.; Roberts, M. J.; Hart, A. J. Adv. Mater. 2012, 24, 1628. [6] Jones, M. R.; Osberg, K. D.; Macfarlane, R. J.; Langille, M. R.; Mirkin, C. A. Chem. Rev. 2011, 111, 3736. [7] Sau, T. K.; Rogach, A. L. Adv. Mater. 2010, 22, 1781. [8] Quan, Z.; Wang, Y.; Fang, J. Acc. Chem. Res. 2013, 46, 191. [9] Zhang, Y.; Xiao, Q.; Bao Y.; Zhang, Y.; Bottle, S.; Sarina, S.; Zhaorigetu, B.; Zhu, H. J. Phys. Chem. C 2014, 118, 19062. [10] Liu, X.; He, L.; Liu, Y.-M.; Cao, Y. Acc. Chem. Res. 2014, 47, 793. [11] Park, J.; Yoo, H. Microporous Mesoporous Mater. 2014, 185, 107. [12] Li, B.; Long, R., Zhong, X.; Bai, Y; Zhu, Z.; Zhang, X.; Zhi, M.; He, J.; Wang, C.; Li, Z.-Y.; Xiong, Y. Small 2012, 8, 1710. [13] Liu, M.; Zheng, Y.; Zhang, L.; Guo, L.; Xia, Y. J. Am. Chem. Soc. 2013, 135, 11752. [14] Chiu, C.-Y.; Yang, M.-Y.; Lin, F.-C.; Huang, J.-S.; Huang, M. H. Nanoscale 2014, 6, 7656. [15] Hong, W.; Wang, J.; Wang, E. ACS Appl. Mater. Interfaces 2014, 6, 9481. [16] Antolini, E.; Gonzalez, E. R. J. Power Sources 2010, 195, 3431. [b1]When gold NPs’ re encapsulated within silica, there’s generally red-shift in the absorbant peak of SPR. Please check this data once again. [HM2]In Fig. 4, I think it better to insert the 2 images of RLNP and Hcl-etched RLNPs to say that the latter surface is not as edge-rich as the former. [HM3]Considering how to name RLNPs whose morphology was change to sphere as adding HCl

From Mind to Supermind: A Statement of Aurobindonian Approach :: Philosophy Philosophical Papers

From "Mind" to "Supermind": A Statement of Aurobindonian Approach ABSTRACT: In contrast to Western theories of mind, Aurobindo’s theory is comprehensive and holistic. This theory derives from his ontology. With respect to mind, Aurobindo contends that evolution will not stop with homo sapien. Rather, he posits higher levels of consciousness: Higher Mind, Illumined Mind, Intuitive Mind, Overmind, and Supermind. Higher Mind is an intermediary between the Truth-light above and the human mind. Illumined Mind is Spiritual light. Intuitive Mind possesses swift revelatory vision and luminous insight. Overmind acts as an intermediary between Supermind and Intuitive Mind. Supermind contains the self-determining truths of Divine Consciousness; it is the Real-Idea inherent in all cosmic force and existence. The various concepts and theories of mind prevalent today have had their origin and development in the West. They can be classified as : Psycho-analytical (cf., Sigmund Freud, Karl Jung, A. Adler), Behavioural (cf., Gilbert Ryle), Gestalt (cf., Max Wertheimer, Kurt Koffka, Wolfgang Kohler), Physiological (cf., J. J. C. Smart, U. T. Place, Feigl), Psycho-physical (cf., Karl Popper), Evolutionary (cf., Henry Bergson, Samuel Alexander, Whitehead), Functional (cf., R. Rorty, Peter Smith, O. R. Jones), and Mental or Homo Sapiens-oriented (cf., Roger Penrose). The outcome of all such discussions is that "mind" is mysterious and beyond all scientific explanation. According to the main contemporary view, in particular, `there is something essential in human understanding that is not possible to simulate by any computational means’. This indicates that the nature of mind continues to remain a source of acute discomfort to the Western thinkers. Even their new empirical findings regardin g the highly complex mental acitivity is dubious. The object of this paper is to submit that in this context of the West’s indecisiveness and perplexity, Aurobindo’s approach to mind comes as a breath of fresh air. Aurobindo’s theory of mind is as much "inclusive" of the essence of the Western schools of thinkers cited above, as it is "contrastive". The pioneers in this area from William James and McDougall through Freud, Jung and Adler etc, established the paradigm of the "iceberg" with reference to the nature of mind. This can be designated as the "infra-structural" theory of the entity. The views of the "evolutionists" (Darwin, Laplace, Bergson, S. Alexander, Whitehead, for instance,) are "different" but not "enriching". All of them fail to recognise that any infra-structure can, and must have, logically speaking, a "supra-structure" as well, in order to be complete and holistic.

Dramatic Devices in A J.B.Priestley’s play, An Inspector Calls :: English Literature

Dramatic Devices in An Inspector Calls Essay This book â€Å"The Inspector calls† is a gripping drama written by J.B Priesly, it deals with the many problems in the world from famine, how minorities were treated and the underclass people. It also shows Priesly’s view on the homeless and the poor. He served in the first world war and believed that the world should of learned from it’s mistakes but as it turns out it did not and that angered him. So after the Second World War he wrote the book â€Å"Inspector calls†. This book uses the device of dramatic irany to portray his characters as not so clever and somewhat fools. It also has a lot of twist’s and turns and cliff hangers. The reason this book is successful good on stage is that Priesly has a good use of mystery and suspense in the book. Priesly uses the convention of a detective genre very well and also uses the whodunit element. All the family members in there own way are responsible for the death of Eva Smith. For example Sheila got her fired from the only good job that she could keep just because the hat looked better on her and she thought that she was laughing at her. There was also Mr Birling who fired her because she was one of the ringleaders that started a strike for higher wages. Eric used her for just a good time, as did Gerald. Eric however got her pregnant and offered her money but she refused. When Eva Smith whent to the charity that Mrs Birlin worked at Eva Smith used the name Mrs Birlin which greatly angered the real Mrs Birlin who used her influence to not give money to Eva Smith. The play also uses dramatic irany well. For example when Mrs Birlin said â€Å"The father should be responsible for the baby† or when Mr Birlin says â€Å"The Titanic†¦.. absolutely unsinkable†. Priesly uses dramatic irany to make the readers or the audience laugh and portray the characters as dim witted. Some more of the devices that made the play successful on stage are the cliff hangers at the end of the scenes or the acts are successful and entertaining. Some of the better cliff hangers that seemed good are when at the end of the scene the Inspector is telling everyone that they indeed had some part to play in the death of Eva Smith. The reason it’s so effective is that it’s a clever cliff hanger that seems to keep people hooked on what the family members have to do with the

Importance of blood donation Essay

Begin with an interesting quotation related to your opinion about The American Red cross (You will need a transition here) – End the Intro paragraph with your thesis statement: Even though Not a lot of people donate blood even though they have time and energy to do so., Every person in this world should donate blood once. because It might be that one can need blood and sometimes hospitals run out of it. and Each time one gives a blood they can save three lives.. Body Paragraph or Section #1 Topic of the body thesis: Not a lot of people donate blood even though they have time and energy to do so. – Find evidence – like facts, examples, quotations, or statistics that back it up or support the topic sentence of this paragraph. – Explain how your evidence supports the topic sentence Another example that shows that Not a lot of people donate blood even though they have time and energy to do so. is†¦ – Find more evidence – facts, examples, quotations, or statistics that back it up or support the topic sentence of this paragraph. – Explain how this second piece of evidence supports the topic sentence. Body Paragraph or Section #2 Even though Not a lot of people donate blood even though they have time and energy to do so., Every person in this world should donate blood once. because It might be that one can need blood and sometimes hospitals run out of it.. – Find evidence – like facts, examples, quotations, or statistics that back it up or support the topic sentence of this paragraph. – Explain how your evidence supports the topic sentence Another example that shows that It might be that one can need blood and sometimes hospitals run out of it. is†¦ – Find more evidence – facts, examples, quotations, or statistics that back it up or support the topic sentence of this paragraph. – Explain how this second piece of evidence supports the topic sentence. Body Paragraph or Section #3 The most important reason Every person in this world should donate blood once. is because Each time one gives a blood they can save three lives.. – Find evidence – like facts, examples, quotations, or statistics that back it up or support the topic sentence of this paragraph. – Explain how your evidence supports the topic sentence Another example that shows that Each time one gives a blood they can save three lives. is†¦ – Find more evidence – facts, examples, quotations, or statistics that back it up or support the topic sentence of this paragraph. – Explain how this second piece of evidence supports the topic sentence. Conclusion So it is clear that although Not a lot of people donate blood even though they have time and energy to do so., Every person in this world should donate blood once. for two main reasons. First, It might be that one can need blood and sometimes hospitals run out of it.. But most importantly, Each time one gives a blood they can save three lives.. – Now you will return to your opening attention-getter from the introduction – Then end your essay with a powerful So What? statement.