Wednesday, October 30, 2019
Training & Development Essay Example | Topics and Well Written Essays - 3000 words
Training & Development - Essay Example Consequently, there is a need to ensure that the company remains ahead of the competition. Management realised that there is no better way to achieve this rather than through the use of training and development. (Paisley, 1999) Policies at M&S will be measured against the backdrop of ‘best practise’ models. The model is based upon the belief that when organisations adopt certain human resource strategies, they are able to make their employees highly motivated. As a result, those employees will become more efficient and they will help in the realisation of competitive advantage within the organisation. Best practice applies to various sectors that include retention of employees, performance improvement, enhancing and promoting training and development, enhancing corporate culture, enforcing organisational structure and also in the determination of pay costs. However, for purposes of this report, we shall mainly focus on training and development. The Research primarily focuses on the use of secondary sources of data. This is because secondary data gives an overall picture of the situation at Marks and Spencer. It allows one to obtain all the relevant information to the research question and compile them to come up with new answers. If primary sources like interviews had been used, it would have been difficult to see the overall picture as results are mostly person centred. (Schutt, 2006) Secondary data allows comparisons between different elements of the research that would otherwise have been too complex to collect using primary sources. Consequently, there are very accurate results that come out of the usage of such a source of data. (Banta, 2007) However, one must not under look the disadvantages of this method of data collection. First of all, it does not allow the progression from developing a research question, collecting data and formulating a hypothesis
Sunday, October 27, 2019
Antimicrobial Activity of Pyrimidine-5-carboxylic Acid
Antimicrobial Activity of Pyrimidine-5-carboxylic Acid Antimicrobial activity of synthesized, novel hydroxamic acid of pyrimidine-5-carboxylic acid and its complexes with Cu(II), Ni(II), Co(II) and Zn(II) metal ions Bhawani Shankar, Rashmi Tomar, Madhu Godhara, Vijay Kumar Sharma ABSTRACT Four metal complexes of new hydroxamic acid, 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylic acid hydroxamide (3) with Cu(II), Ni(II), Co(II) and Zn(II) metal ions have been synthesized. The hydroxamic acid and its metal complexes were characterized by simple analytical techniques such as repeated melting point (M.P.) determination, elemental analysis, running their thin layer chromatography for single spot, and spectroscopic techniques such as I.R., H1-NMR and UV-Vis. (only for metal chelates) spectroscopy. Antimicrobial activity of the hydroxamic acid and their metal complexes were screened against two species of bacteria and two species of fungi by Serial Dilution Method. Metal complexes were found more active against both bacteria as well as fungi in antimicrobial screening test. Keywords Hydroxamic acids, antimicrobial activity, metal complexes INTRODUCTION Hydroxamic acids show a wide spectrum of biological activities and generally have low toxicities à ¯Ã‚ †º1à ¯Ã‚  -à ¯Ã‚ †º2à ¯Ã‚  . Hydroxamic acids are very well known for their antibacterial à ¯Ã‚ †º3à ¯Ã‚  -à ¯Ã‚ †º5à ¯Ã‚  , antifungal à ¯Ã‚ †º6à ¯Ã‚  -à ¯Ã‚ †º7à ¯Ã‚  , antitumor à ¯Ã‚ †º8à ¯Ã‚  -à ¯Ã‚ †º9à ¯Ã‚  , anticancer à ¯Ã‚ †º10à ¯Ã‚  , antituberculosis à ¯Ã‚ †º11à ¯Ã‚  and antimalerial à ¯Ã‚ †º12à ¯Ã‚  properties. Hydroxamic acids are inhibitors of enzymes such as prostaglandin H2 synthatase à ¯Ã‚ †º13à ¯Ã‚  , peroxidase à ¯Ã‚ †º14à ¯Ã‚  , urease à ¯Ã‚ †º15à ¯Ã‚  and matrix metalloproteinase à ¯Ã‚ †º16à ¯Ã‚  . Cinnamohydroxamic acids are used for treatment of the symptoms of asthma and other obstructive airway diseases which inhibit 5-lipoxygenase à ¯Ã‚ †º17à ¯Ã‚  . A number of hyd roxamic acid analogues have been shown to inhibit DNA (dinucleic acid) synthesis by inactivating the enzyme ribonucleotide reductase (RNR) à ¯Ã‚ †º18à ¯Ã‚  . Naturally occurringhydroxamic acid, 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA) is a powerfulantibiotic present inmaize à ¯Ã‚ †º19à ¯Ã‚  . Antiradical and antioxidant properties of hydroxamic acids have also been observed à ¯Ã‚ †º20à ¯Ã‚  . Hydroxamic acids play important role in many chemical, biochemical, pharmaceutical, analytical, and industrial fields à ¯Ã‚ †º21à ¯Ã‚  -à ¯Ã‚ †º25à ¯Ã‚  . These diverse biological activities of hydroxamic acids are due to their complexing properties towards transition metal ions à ¯Ã‚ †º26à ¯Ã‚  -à ¯Ã‚ †º27à ¯Ã‚  . Siderophores are Fe(III) complexes of naturally occurring hydroxamic acids, involved in the processes of iron transport from the environment to the living organisms à ¯Ã‚ †º28à ¯Ã ‚  -à ¯Ã‚ †º29à ¯Ã‚  . Hydroxamic acids after deprotonation acts as bidentate ligands and octahedral complexes are formed through the co-ordination of two oxygen atom of the –CONHO- group. This type of co-ordination have been studied with Cr(III), Fe(III), Ni(II), Co(II) and Zn(II) ions in solid state as well as in solutions, indicating the formation of octahedral complexes à ¯Ã‚ †º30à ¯Ã‚  . We report herein the synthesis, structural features and antimicrobial activity of new hydroxamic acid, 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylic acid hydroxamide (3) as well as their metal complexes 4a-d with Cu(II), Ni(II), Co(II) and Zn(II) metal salts. EXPERIMENTAL Reagents and methods All chemical used in the present investigation were of analytical reagent grade. 1,3- Di-p-tolylbarbituric acid was synthesized by previously known method in the laboratory. Copper acetate monohydrate, nickle acetate tetrahydrate, cobalt acetate tetrahydrate and zinc acetate dihydrate were purchased from E-Merck. Triethyl amine and ethyl chloroformate were purchased from Spectrochem. Hydroxylamine hydrochloride potassium hydroxide and diethyl ether were obtained from S.D. fine chemicals limited, India. All the synthesized compounds were analysed for C, H and N by elemental analyser, model 1108 (EL-III). H1-NMR spectra (400MHz) were recorded on JNM ECX- 400P (Jeol, USA) spectrometer using TMS as an internal standard. IR absorption spectra were recorded in the 400-4000 cm-1 range on a Perkin-Elmer FT-IR spectrometer model 2000 using KBr pallets. UV-Vis. spectra of metal complexes were recorded in DMSO solvent at room temperature on Simadzu Spectro Photometer model no. 1601. Melting poi nts were determined using Buchi M-560 and are uncorrected. These reactions were monitored by thin layer chromatography (TLC), on aluminium plates coated with silica gel 60 F254 (Merck). UV radiation and iodine were used as the visualizing agents. Synthesis of the hydroxamic acid 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylic acid hydroxamide (3) Synthesis of ligand 3 was carried out in two steps as follows: Step 1: Synthesis of ethyl 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylate (2). Ethyl 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylate (2) was synthesized by the reported method of Kuhne et al à ¯Ã‚ †º31à ¯Ã‚  . 1,3- Di-p-tolylbarbituric acid à ¯Ã‚ †º5g, 0.016 mol.à ¯Ã‚  and triethyl amine à ¯Ã‚ †º2.30ml, 0.0168 mol.à ¯Ã‚  and dimethyl aminopyridine (DMAP) à ¯Ã‚ †º0.10gà ¯Ã‚  were dissolved in 20 ml of dichloromethane (DCM) and the solution was cooled to 00 C. Then ethyl chloroformate à ¯Ã‚ †º1.60ml, 0.0165 mol.à ¯Ã‚  was added drop-wise over half an hour. The mixture was subsequently stirred for 12 hours at 00C, then, allowed to warm to the room temperature for 7 hours. The product is extracted in chloroform and dried over Na2SO4. Further, chloroform was evaporated to dryness and crude product was recrystallised from ethyl alcohol to yield pure 2. Step 2: 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylic acid hydroxamide (3) from ethyl 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylate (2). Synthesis of 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylic acid hydroxamide (3) was carried out by adopting a method similar to that described by Griffith et al à ¯Ã‚ †º32à ¯Ã‚  . The mixture of hydroxylamine hydrochloride à ¯Ã‚ †º1.87g, 0.026 mol. à ¯Ã‚  and aqueous potassium hydroxide à ¯Ã‚ †º2.19g, 0.039 mol. à ¯Ã‚  was added drop-wise to a methanolic solution of ethyl 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylate (2) à ¯Ã‚ †º5g, 0.013 mol. à ¯Ã‚  . The solution was stirred at room temperature for 72 hours and then acidified to pH 5.5 using 5% HCl solution. After filtration the solvent was removed in vacuo to yield a solid. The crude product was recrystallised from hot water to yield pure compound 3. Synthesis of metal complexes Synthesis of Cu(II), Ni(II), Co(II) and Zn(II) complexes of 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylic acid hydroxamide (3). Copper acetate monohydrate à ¯Ã‚ †º0.136g, 0.00068 mol.à ¯Ã‚  in cold water was added with stirring to 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylic acid hydroxamide (3) à ¯Ã‚ †º0.50 g, 0.00136 mol.à ¯Ã‚  in EtOH (20 ml) in a round bottom flask. The contents were stirred for about 6 hours and then reduce to half volume under vacuo. Yellowish brown precipitate of 4a was appeared after adding petroleum ether. The precipitate was filtered, washed with small amounts of Et2O and dried over CaCl2 in a vacuum desiccator. Similarly, complexes 4b of Ni(II) , 4c of Co(II) and 4d of Zn(II) with 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylic acid hydroxamide (3) were synthesized by taking nickle acetate tetrahydrate, cobalt acetate tetrahydrate and zinc acetate dihydrate respectively. Infrared Spectra In the IR spectra (Table 1), carbonyl stretching vibrations of hydoxamic acid exhibit a medium sharp intensity band in the region 1660 cm-1 à ¯Ã‚ †º33à ¯Ã‚  . This band has shifted towards negative region 1626-1609 cm-1 in the metal complexes indicating the coordination of the ligand with the metal ion through oxygen of the carbonyl group. The symmetric N-O stretching vibrations, obtained in the region 1120 cm-1 in the IR spectra of ligands, have shifted to lower side in the IR spectra of their metal complexes suggesting the coordination of ligand to the metal ion through oxygen of the N-O moiety à ¯Ã‚ †º34à ¯Ã‚  . The presence of water molecules within coordination sphere of all chelates were supported by broad bands in the region 3450-3280 cm-1 and 850-800 cm-1 due to stretching and deformation modes of coordinated water molecules, respectively. The appearance of new band in the IR spectra of metal chelates in the region 551-519 cm-1 is probable due to forma tion of M-O bonds à ¯Ã‚ †º35à ¯Ã‚  . Table 1. IR spectral data of hydroxamic acid 3 and its metal complexes 4a-d. Compound à ¯Ã‚  ®(C=O)cm-1 à ¯Ã‚  ®(C-N) cm-1 à ¯Ã‚  ®(N-O) cm-1 à ¯Ã‚  ®(M-O) cm-1 3 1660 1349 1120 4a 1609 1327 1036 551 4b 1624 1355 1023 519 4c 1626 1384 1023 540 4d 1629 1350 1025 541 H1-NMR Spectra The hydroxamic acid 3 shows a one proton singlet at 1.14 due to –NH-O proton, probably due to magnetic anisotropy of the neighboring carbonyl group, electronegativity of nitrogen and H- bonding à ¯Ã‚ †º36à ¯Ã‚  . One proton singlet in hydroxamic acid 3 appear at 2.49 due to –N-OH proton à ¯Ã‚ †º37à ¯Ã‚  . Due to proton exchange in D2O this signal disappeared in the spectra indicating the possibility of –OH proton. Six protons multiplet for two Ar–CH3 group protons of hydroxamic acid 3 appear at 2.01 – 2.09. The hydroxamic acids 3 show a one proton singlet due to –C5H proton at 5.26. A multiplet due to eight protons of aromatic rings, Ar-H was observed at 7.17 7.20. H1-NMR of metal complexes 4a-d was not taken due to very less solubility in suitable organic solvents. UV- vis. Spectra Cu(II) complex In the electronic spectra of Cu(II) complex, 4a, three absorption bands in the region. 13157, 16949 and 23809 cm-1 have been observed, which correspond to the transitions 2B1g → 2A1g, 2B1g → 2B2g and 2B1g → 2E1g suggesting distorted octahedral geometry à ¯Ã‚ †º38à ¯Ã‚  -à ¯Ã‚ †º40à ¯Ã‚  . Ni(II) complex The electronic spectra of Ni(II) complex, 4b, exhibit three bonds in the region 13333, 16129 and 20833 corresponding to the transitions 3A2g → 2T2g(F), 3A2g → 3T1g(F), 3A2g → 3T1g(P) respectively which show an octahedral geometry for these complexes à ¯Ã‚ †º41à ¯Ã‚  -à ¯Ã‚ †º42à ¯Ã‚  . Co(II) complex In the electronic spectra of Co(II) complex, 4c three absorption bands in the region 12903, 14925 and 20200 cm-1 were seen, which may correspond to the transition 4T1g→ 4T2g(F), 4T1g → 4A2g (F) and 4T1g → 4T1g(P), respectively, indicating an octahedral geometry à ¯Ã‚ †º43à ¯Ã‚  -à ¯Ã‚ †º44à ¯Ã‚  . Zn (II) Complex No significant absorption was noticed in Zn(II) complex, 4d, above 400nm probably due to diamagnetic nature and completely filled d- orbitals. In the Zn(II) complex only transitions due to à ¯Ã‚  °Ãƒ ¯Ã¢â‚¬Å¡Ã‚ ®Ãƒ ¯Ã‚  °* and nà ¯Ã¢â‚¬Å¡Ã‚ ®Ãƒ ¯Ã‚  °* were seen. Antimicrobial activity Synthesized ligand 3 and metal chelates 4a-d were tested for their antimicrobial activity against two bacteria Staphylococcus aureus and Escherichia coli and two fungi Aspregillus flavus and Aspergillus niger by adopting Serial Dilution Method à ¯Ã‚ †º45à ¯Ã‚  -à ¯Ã‚ †º46à ¯Ã‚  .. The micro-organisms were cultured in nutrient agar medium à ¯Ã‚ †º46à ¯Ã‚  which was prepared by taking 6.0 gm peptone, 1.50 gm beef extract, 1.0 gm dextrose, 3.0 g yeast extract, 1.50 g agar (for slant) in 1 liter distilled water for bacteria and 10.0g peptone, 20.0g dextrose, 20.50g agar (for slant) in 1 liter distilled water for fungi. Measured quantities of the test compounds were dissolved in propylene glycol. First set was prepared for primary screening by taking 1ml (2000 µg/ml) of seeded broth (obtained by 1:100 dilution of the incubated micro-organism broth culture) in 10 well cleaned sterilized test tubes and gradual dilution process was continued for all the ten tubes using a fresh pipette each time. All the above sets of tubes were incubated at 37oC for 24 hours for bacteria and at 28oC for 96 hours for fungi. The Minimum Inhibitory Concentration (MIC) values were determined at the end of incubation period. Active synthesized compounds, found in the primary screening were further tested for secondary screening by taking 1ml (1500 µg/ml) of seeded broth against all microorganisms. RESULTS AND DISCUSSION In this present work synthesis of 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylic acid hydroxamide (3) was carried out by adding an aqueous solution of hydroxylamine hydrochloride and potassium hydroxide drop-wise to a methanolic solution of ethyl 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylate (2). The solution was continuously stirred for 72 hours at room temperature, which on acidification give crude solid. (Scheme I). Compound 3 on stirring with different metal salts, gave corresponding metal complexes 4a-d (Scheme II). All the metal complexes obtained were solid and stable at room temperature and insoluble in most of the common organic solvents. The spectroscopic and analytical data (Table 2) are in good agreement with theoretical values for the ligand and metal complexes. Table 2. Analytical data and physical properties of the hydroxamic acid 3 and metal complexes 4a-d. S.No. Compd Molecular Formula Color Percentage Elemental Analysis Calc./ (Found) M.P. /D.T. (oC) Yield (%) C H N 1 3 C19H17N3O5 Dark Pink 62.12 (61.90) 4.63 (4.52) 11.44 (11.28) 1560C 85% 2 4a à ¯Ã‚ †ºCu(C19H16N3O5)2.2H20à ¯Ã‚  Yellowish Brown 54.87 (53.27) 4.33 (4.30) 10.10 (9.90) 2480C 71% 3 4b à ¯Ã‚ †ºNi(C19H16N3O5)2.2H20à ¯Ã‚  Light Pink 55.22 (54.70) 4.39 (4.25) 10.13 (10.10) 2700C 70% 4 4c à ¯Ã‚ †ºCo(C19H16N3O5)2.2H20à ¯Ã‚  Pink 55.20 (54.70) 4.35 (4.25) 10.16 (10.20) 3220C 75% 5 4d à ¯Ã‚ †ºZn(C19H16N3O5)2.2H20à ¯Ã‚  Brown 54.67 (53.80) 4.32 (4.30) 10.07 (9.89) 3100C 70% Antimicrobial Activity The newly synthesized hydroxamic acid 3 and its metal chelates 4a-d were tested for their antimicrobial activity against two bacteria Staphylococcus aureus and Escherichia Coli and two fungi Aspergillus niger and Aspergillus flavus. The experimental results of MIC values (Table 3) show moderate activity of all the compounds against both bacteria and fungi. Further, it has been found that the metal complexes were more active than hydroxamic acid. This increased antimicrobial activity of the complexes as compared to the hydroxamic acid is probably due to the fact that chelation increases the lipophilicity of the complexes, which subsequently enhances the penetration through the lipid layer of cell membrane and restricts further multiplicity of the microorganism à ¯Ã‚ †º46à ¯Ã‚  . Among the metal complexes, Cu (II) complex 4a was found most active against both bacteria and fungi. The higher antimicrobial activity of Cu (II) complex may be due to higher stability constant of copper complexes. Table 3. The minimum inhibitory concentration ( µg/ml) MIC values of hydroxamic acid 3 and their metal complexes 4a-d. S.No. Compound Bacteria Fungi Staphylococcus aureus Escherichia coli Aspergillus niger Aspergillus flavus 1 3 325 325 250 325 2 4a 125 125 250 250 3 4b 325 500 500 325 4 4c 500 250 250 325 5 4d 500 250 250 250 CONCLUSION Four new metal chelates, 4a-d with ligand 3 have been synthesized and characterized. Octahedral geometries were proposed for the prepared metal complexes. All the synthesized hydoxamic acids and their metal chelates were screened for antimicrobial activity. A comparative study of the MIC values of the ligand and its complexes show that complexes exhibit higher antimicrobial activity than free ligand. Among the metal complexes, Cu (II) complex 4a was found most active against both bacteria and fungi. ACKNOWLEDGEMENT One of the authors Ms. Rashmi Tomar is grateful to UGC, Bahadur Shah Zafar Marg, New Delhi, for providing fellowship. REFERENCES à ¯Ã‚ †º1à ¯Ã‚  AE Fazary; MM Khalil; AFahmy; TA Tantawy, Medical Journal of Islamic Academy of Science, 2001, 14(3), 109-116. à ¯Ã‚ †º2à ¯Ã‚  D Kumar; R Tomar, J. Inst. Chem. 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Friday, October 25, 2019
The Influence and the Role of the Jewish Community in Ancient and Conte
The Influence and the Role of the Jewish Community in Ancient and Contemporary Turkey Antiquity A Jewish community has existed in the land that is modern day Turkey for many centuries. In fact, many important figures of the Old Testament lived in Turkey during at least part of their lives. Abraham was born in Ur of Chaldea, according to the Old Testament, which is believed to be the Turkish city Sanhurfa (located close to the Euphrates River) (G 3). It is also believed that Abraham lived in Harran in the 18th century BC. Jacob sought refuge in Turkey when he was escaping from his brother Esau and his well is still found there today. Noah and his family ran aground on Mount Ararat (Agri Dag), which is located in eastern Turkey near Dogubayazit. Noah's descendents would become the Hittites who ruled central Anatolia (modern day Turkey), the Assyrians, and Abrahams ancestors among others (Burke 1). Due to multiple invasions of Palestine, many Jews were forced into exile. These Jews, and subsequently all Jews residing abroad, or "dispersed", were referred to as the Jews of the Diaspora or simply the Diaspora. In 560 BCE, Babylon conquered Judah and a relatively small number of Jews were exiled. Some would eventually return to Jerusalem but others built centers of Jewish culture throughout Mesopotamia (Burke 1). The remnants of Jewish settlement have been discovered in the Aegean Region that date to the 4th century BCE confirming Josephus Flavius' records of Aristotle having met and exchanged ideas with some Jewish people in Asia Minor. Other Jewish settlements have been found in various parts of modern Turkey that date to the third century BCE most notably the remains of an ancient synagogue in Sardis (Guleryuz ... ...exis.com. Lecumberri, Beatriz. November 22, 2003. Istanbul Jews go underground for Sabbath worship. Agence France Presse. Lexis-Nexis Academic. http://www.lexis-nexis.com. Library of Congress Country Studies: Turkey: Jews and Turkey: Religious Life Prusher, Ilene. November 19, 2003. Turkish Jews search for answers. Christian Science Monitor (Boston, MA) (WORLD; Pg. 06). Lexis-Nexis Academic. http://www.lexis-nexis.com. Turkish Daily News. September 12, 2003. Erdogan receives Turkish-Jewish leader Pinto. Lexis-Nexis Academic. http://www.lexis-nexis.com. Turkish Daily News. November 14, 2003. An Iftar for World Peace. Lexis-Nexis Academic. http://www.lexis-nexis.com. Turkish Daily News. September 20, 2003. Portuguese President Sampaio says Jewish Community in Turkey has Connection Point with Portugal. Lexis-Nexis Academic. http://www.lexis-nexis.com.
Thursday, October 24, 2019
African Folktales Essay
In the actual Nigeria tribe African folktales, form a very important part of the African culture. There are different ways in how those folktales affect the African culture in general; one of this ways is that it’s used as a way of communicating. There is a rich, fertile legacy of folklore from Africa. On this vast continent, folk tales and myths serve as a means of handing down traditions and customs from one generation to the next. The storytelling tradition has thrived for generations because of the absence of printed material. Folk tales prepare young people for life, as there are many lessons to be learned from the tales from the history of this large continent, this includes the forceful transplanting of the people into slavery on other continents. In addition to the folk tales, there are myths, legends, many proverbs, tongue twisters, and riddles. In the African folk tales, the stories reflect the culture where animals abound; consequently, the monkey, elephant, giraffe, lion, zebra, crocodile, and rhinoceros appear frequently along with a wide variety of birds such as the ostrich, the secretary bird, and the eagle. The animals and birds take on human characteristics of greed, jealousy, honesty, loneliness, etc. Through their behavior, many valuable lessons are learned. Also, the surroundings in which the tales take place reveal the vastness of the land and educate the reader about the climate, such as the dry season when it hasn’t rained for several years, or the rainy season when the hills are slick with mud. The acacia trees swaying in a gentle breeze, muddy streams that are home to fish, hippos and crocodiles, moss covered rocks, and giant ant hills that serve as a â€Å"back scratcher†for huge elephants, give the reader a sense of the variety of life in this parched or lush land in this part of the world. There is wealth of folktales in the African culture of different kinds some examples of them are: Uncle Remus Tales, Tortoise and the Hare, Crocodile Tales, The voice of the Drums, The Kind of Lion, String Tales, The Sacred Vulture, Anansi, and Dilemma Tales. Those kinds of tales above are just some examples of the huge African folktales repertory, and the subcategories which take a major role in the African and Nigerian culture and society, reflecting the animals that abound there. In conclusion, I can say that folktales plays an important role in the African Society, even more than books or other kind of source, this is because in Africa are very few resources of written history, so they know more about their history via these folktales; without folktales, African history may be inexistent CITATIONS: Achebe, Chinua. Things Fall Apart. New York: Random house, Inc., 1995 http://www.teachervision.fen.com/folk-tales/resource/3716.html?page=1&detoured=1
Wednesday, October 23, 2019
Online Restaurant Management System Essay
Project objectives usually describe the goals or missions of the company to provide better services to customers. The project scope is being developed to describe the function that required in a system. Whereas the project schedule is needed to state the time line for all the task and follow it in order to complete the system on time. For the project team is state out the task that do by the members. Development and operation environment is required to ensure the final system can be develop in a manner way and operate smoothly after being implemented. We discuss about the fact finding technique, system requirements, and all the UML diagrams. A complete and details requirements has to be gathered before a quality informaiton system can be produced. Hence, the process of requiremens analysis is very important. So, the fast finding techniques that we used are interview and observation. Thus, we had more understand about the restaurant workflow. Functional requiements had described the details of each modules. Requirements analysis is an important part of the system design process. Once the client’s requirements have been identified and facts collected, we are then in a position to design a solution. Class diagram is the database structure that comprised of many classes, interrelationships between classes, operations and attributes of the classes. the database dictionary was showed all the database table with attributes name, data description, data types, key, default values and so on. â€Å"Database design is an important step in software development†. Software testing is an important stage to ensure that the software is free of bugs. The purpose of testing is to ensure that the system will propose require function correctly, accurately, efficiency and effectively. 1. 2 Purpose: Nowadays, the world is getting into digital world. System was trying to build out to make people even more convenience on any aspects. INDIA TAKE AWAYS provides an online system to users to make order online. Indirectly, it involves seller (restaurant) and buyer (customer) which could bring benefits to each other and help to sustain the environment. It is a win-win situation that will bring benefit to the world. This system was bringing a convenience for customer that can make order by just press a button. 1. 3 Scope: Online Ordering Subsystem This Subsystem/module enable customer to make order through online. It will display the menu which includes meal name, image, price, and description. Customer can select the quantity and add the meal into order list. Then, customer can view all the orders in order list and send the order to our restaurant by click the confirm button. Staff enables to check the orders from check list and update the status after the meal is cooked. Delivery Subsystem This module is use when customers choose to delivery. They should fill in the delivery information such as name, contact number, delivery address, date and time. After fill in the delivery details, submit/send it to the restaurant. The staff will keep track all the delivery after the meal is cooked. Staff can view all the meal order, delivery detail, total amount, tax and charge by using this subsystem. They also can print delivery information for their reference Meal Maintenance Subsystem Admin or manager enables to maintain the meal by using this module. When chef have introduce a new meal, they can use it to add the new meal by enter the meal information. It also allows to edit meal information like meal price or image. Besides, admin can delete the meal if the meal is lower sales. Report Subsystem This module is use to generate report by admin or manager in order to make decision. The report include monthly sales report, top 5 monthly report, redemption report, feedback report, reservation report and so on. Different report has different purpose or usage. Most of this report is analyst by admin and make adjustment such like increase staff when higher sales month or do promotion when the sales is lower.
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