Wednesday, November 27, 2019

Catcher In The Rye Essays (1278 words) - Picaresque Novels

Catcher In The Rye The forthcoming of American literature proposes two distinct Realistic novels portraying characters which are tested with a plethora of adventures. In this essay, two great American novels are compared: The Adventures of Huck Finn by Mark Twain and The Catcher In The Rye by J.D. Salinger. The Adventures of Huck Finn is a novel based on the adventures of a boy named Huck Finn, who along with a slave, Jim, make their way along the Mississippi River during the Nineteenth Century. The Catcher In The Rye is a novel about a young man called Holden Caulfield, who travels from Pencey Prep to New York City struggling with his own neurotic problems. These two novels can be compared using the Cosmogonic Cycle with both literal and symbolic interpretations. The Cosmogonic Cycle is a name for a universal and archetypal situation. There are six parts that make up the cycle: the call to adventure, the threshold crossing, the road of trials, the supreme test, a flight or a flee, and finally a return. There are more parts they do not necessarily fall into the same order, examples of these are symbolic death and motifs. The Cosmogonic Cycle is an interesting way to interpret literature because is Universal or correlates with any time period and any situation. The Call to Adventure is the first of the Cosmogonic Cycle. It is the actual call to adventure that one receives to begin the cycle. There are many ways that this is found in literature including going by desire, by chance, by abduction, and by being lured by an outside force. In The Adventures of Huck Finn, Huck is forced with the dilemma of whether to stay with his father and continue to be abused or to leave. Huck goes because he desires to begin his journey. In The Catcher In The Rye, Holden mentally is torn between experience and innocence, it would seem to him that an outside force is luring him to do something but in actuality he is beginning his journey because of his desire. The Call to Adventure is the first step in the Cosmogonic Cycle, it is the step at which the character or hero is brought into cycle. The Threshold Crossing is the second step, it is the place or the person that which the character crosses over or through into the Zone Unknown. The Zone Unknown being the place where the journey takes place. The threshold crossing is often associated with a character change or an appearance change. An example of this is in The Wizard of Oz, when the movie goes from black and white to color, showing a visual symbolic death. A symbolic death is another part to the Cosmogonic Cycle of which the character goes through a change and emerges a more complete person or more experienced. In The Adventures of Huck Finn, a symbolic death is very apparent during the scene in which Huck sets up his father's cabin to look like Huck was brutally murder. Huck emerges as a runway child and now must be careful of what he does, so that he does not get caught. Huck also tells people false aliases for himself so that no one knows his true identity. Every time that he does this he is symbolically dying and reemerges a more experienced person. In The Catcher In The Rye, Holden also uses fake names, but Holden symbolically dies through fainting, changing the position of his red hunting hat, and is associated with bathrooms. The bathroom motif, or the reoccurring appearance of a bathroom, symbolizes death for Holden because he enters bathrooms with a neurotic and pragmatic frame of mind and exits with a cleared mind. The use of symbolic death and motifs is associated with the Threshold Crossing, the second step of the Cosmogonic Cycle. The Road of Trials is the next step in the Cosmogonic Cycle, which are the obstacles which the character faces throughout the literary work. In The Adventures of Huck Finn, Huck's Road of Trials occurs on the Mississippi River. He faces many obstacles, including moral decisions of right and wrong, dealing with con-artists, and helping a runaway slave. He promulgates more experienced from his journey down the river on his raft. In The Catcher In The Rye, Holden's Road of Trials takes from Pencey Prep to New York City. Holden deals with his own mental hallucinations, cognative disotience, and his desire to stay innocence, his Peter Pan complex. The author does not end the novel with a happy ending, from analyzing Holden's experiences

Saturday, November 23, 2019

In our existing age, when technological advancement and uncontrolled curiosity

In our existing age, when technological advancement and uncontrolled curiosity In our existing age, when technological advancement and uncontrolled curiosity have made the world even smaller, it is apparent that research and science should be encouraged. Treasure hunters should be permitted to perform underwater searches for sunken vessels, not only because it would put a restrain on their business goals or funds, but also because it would hinder scientific and historical discovery.An individual in search of the gold and treasure can be called a Treasure hunter, or salvor, but they are educated of the historical value of the shipwrecks they explore. In recent times, respect for the historical integrity of a wreck has grown significantly. According to Steven Morgan, a well-known salvor that's been in the business for over thirty years, states that in the past "you'd take what's good, and everything else was dumped overboard," but modern projects are projective of the sites. Today a salvor is an archaeologist."English: Thracian grave, excavated by treasure hun...

Thursday, November 21, 2019

Adaptation of the body to hot and cold Essay Example | Topics and Well Written Essays - 1250 words

Adaptation of the body to hot and cold - Essay Example Since ancient times, human beings have been surviving in hot and humid weather of Sahara and extreme cold weather of Antarctica. Much of the earth’s hot and cold places are inhabited by human beings. The important fact is that the body of the person is permitted to live in any harsh weather conditions. However, the body needs a supply of water, shade and limited physical activity in order for the human being to survive. According to Wenger (2009), â€Å"Problems due to heat stress may occur whenever the rate of heat production or heat gain from the environment is sufficiently large in relation to the body’s ability to dissipate heat.† In a human body, problems such as numbness and snow bite can occur in extreme cold weather. However, sudden adaptation to an extreme weather is not likely for the physiology of a human being. There is an extent to which people can survive in a harsh climatic condition. The adaptation to hot or cold weather for the human body is poss ible only through the conditioned genetic make of the body. Unfortunately, it is a fact that with the continuous exposure to hot or cold weather, the tissues of the human body get injured. The body has different mechanisms by which it can adapt to cold and hot weather conditions. However, if a person is exposed to extreme hot or cold directly, then he can famish in a short period of time. Body’s adaptability to heat The human body is designed to sustain at an average temperature level and the body also maintains an average temperature level of 37 degree centigrade. However, when we attempt to sustain in a temperature above that, then the body brings out its adaptation mechanisms. When our body gets hot, it starts a biological process called sweating in order to cool off the body. But when the heat of the environment gets hotter than that, the tissue of the body is injured. The heat can affect the protein’s biological processing and this can lead to complication in the health of the human being exposed to extreme heat. The change in the protein configuration of the cell is called â€Å"denaturation.† High temperature can alter the nature of protein or kill the cells. If a living cell is exposed to heat above 45 degrees, then burning of the skin occurs. The damage of the skin depends on the duration and intensity of the heat applied to the human body. We, human beings, like any other mammal, are â€Å"homeotherms†; in other words, warm blooded animals. The human body has the ability to maintain its temperature by different biological processing. The human body does not react negatively to any minor changes in temperature, whether it is hot or cold. The main method by which the body defends against the heat in the environment is by perspiration. By perspiration the body injects fluid into the surface of the skin to make it moist and cool. As per Dugdale (2012), â€Å"Sweating is the release of a salty liquid from the body's sweat glan ds. This process is also called perspiration.† The phenomenon of sweating The phenomenon of sweating is the only way in which the body reacts to the extreme hot weather conditions. In this biological process, body injects salty liquid on to the surface of skin with the aid of sweat glands. There are millions of sweat glands in a human body and this process of sweating, in other words, is called â€Å"perspiration.† Sweating is an extremely important activity of the body to stay cool in harsh environmental conditions. Sweat is mainly obvious on the palms of the hand, under the arm or under the feet. The quantity a person sweats depends on the amount of sweat glands a person possesses. The sweat glands of an individual are functional as one attains their puberty period. Although, women possess more sweat glands, men

Wednesday, November 20, 2019

Reading Responses 2 Essay Example | Topics and Well Written Essays - 500 words

Reading Responses 2 - Essay Example Young boyfriends like young John and James are interested in her body. She is a toy to them. Men can play with Mary anyway they like without having to show slightest respect for her emotions. Old John, on the other hand, does love Mary but is not sincere enough to sacrifice his well-established married life for her sake. On the other hand, Mary is in continuous search of finding the right man to get married to and in her attempt to achieve this, she plays a toy to the men. Madge is the typical housewife who is immersed in the works for the wellbeing of her children and husband, though she is privileged in that she is recognized by John as his wife and is introduced in the society as such. She has the status of a respectable woman who fulfills all the roles expected of a careful and responsible woman. John, in his youth flirts with Mary and marries Madge. In old age, he again flirts, this time, with a different Mary but almost the same age as the first one. Nevertheless, there is a di fference between his sincerity towards the first Mary in his life and the second one. With the passage of time, John has become more emotionally involved in his extra-marital affairs despite having a satisfying married life. In any case, the author believes that the ending is happy.

Sunday, November 17, 2019

Biochemistry and Technology Essay Example for Free

Biochemistry and Technology Essay 1. For the lesson, I chose the topic of animal cloning for agricultural needs. 2. The sources I used are http://www.fda.gov/AnimalVeterinary/NewsEvents/FDAVeterinarianNewsletter/ucm106070.htm http://www.understandinganimalresearch.org.uk/how/areas-of-research/animal-cloning/ 3. Cloning has always been something of science fiction, the ability to make an exact copy of an organism. Recently though, this sci-fi idea is more of reality than ever. Many have heard of Dolly the sheep, a perfect clone, but cloning has been done many times throughout the world. Rabbits, horses, mice and others have been clone before. Since cloning only takes one parent cell, the offspring is an exact genetic replica of the first. Now, cloning for agriculture was one of the first marketing thoughts on the subject. If a farmer were to have just one healthy pig that could end up being 100 healthy pigs, it would get rid of the problem of genetic problems with farm animals. A 100% success rate would help the farming business greatly. 4. There are many positive aspects of cloning technology for the use of livestock trading. This technology would benefit all in the livestock circle. Imagine that every steak you came from the â€Å"near-perfect† cow. Each cow would have the genes of one â€Å"perfect† cow. This would give the consumer and producer less work of having to find the best of what they want. 5. Many fear that cloning could be used for the wrong purposes, the main being human testing. People fear that the testing of animals is just the first step to people. Another problem that people fear is that animals will start to less seem like animals and just soulless things. 6. So Dolly was not the first clone, and she looked like any other sheep, so why did she cause so much excitement and concern, since she was the first mammal to be cloned from an adult cell, rather than an embryo. This was a major scientific achievement, but also raised ethical concerns.

Friday, November 15, 2019

Seed Germination of Orchid | Research

Seed Germination of Orchid | Research There are a lot of orchid species being listed as endangered species due to over-collection and lack of conservation. The survival rate of orchid in the nature is relatively low. This research is aimed to investigate the effect of organic additives on in vitro seed germination of Vanda hastfera, an endemic species of orchid to Borneo. By the end of this investigation, we expect to determine the medium composition and germinating conditions that are favourable for in vitro seed germination of Vanda hastifera. Various organic additives such as potato extract, peptone, coconut water, tomato juice and banana pulp will be added into the medium to examine their effects on the seed germination. The physical conditions such as light intensity, temperature, pH and relative humidity will be adjusted to the most suitable condition in compliance with the percentage of seed germination. The culture room will be maintained at a 16 light/8 dark photoperiod with environmental temperature of 25 ±2à ‚ °C. Also, the protocol will be designed by taking into account of the cost-effectiveness of the project. Keywords: Vanda hastifera, in vitro seed germination, protocorm,  ½ MS medium 1.0 Introduction The family Orchidaceae is considered as one of the largest flowering plant families which comprised of over 880 genera and approximately 25,000 to 30,000 species worldwide (Paek, Hahn Park, 2011; Bektas, Cà ¼ce Sà ¶kmen, 2013). Paek et al. (2011) indicated that the high degree of compatibility among genera and species allowed the registration of bi- and plurigeneric hybrids to reach over the number of 100,000. Lamb (as cited in Chan, Lamb, Shim Wood, 1994, p. 5) claimed that approximately 10% of orchids in the world were found in Borneo, which is around 2500-3000 species. Among these about 30-40% are said to be endemic species. Borneo is whereby denoted as â€Å"Orchid Island† (Chan et al., 1994). As discussed by Beaman, Wood, Beaman and Beaman (2001), Vanda is a monopodial genus of orchids that produce attractive flowers which are generally found at hill-forests or tropical lowlands. Vanda hastifera Rchb.f. (Orchidaceae) is endemic to Borneo in which this epiphytic species inhabits at hill forest, lowland or coasted area (Chan et al., 1994). Vanda hastifera can be found at Kinabatang district in Sabah, Pontianak area in Kalimantan Barat, and Kuching area in Sarawak. Vanda hastifera is scented flower that can blooms for around 10 days in which it produces reflexed petals and sepals (Chan et al., 1994). The sepals of Vanda hastifera are marked by a few reddish brown spots. The uniqueness of this species is that it is very hairy at the margin of its lip as well as the auricles (Beaman et al., 2001). Over-collection of orchids has endangered some of the species which have high commercial value in a variety of industries like the medical industry, horticultural, ornamental so on. The survival of orchid in wild habitat is very low which also press the need to perform in vitro germination of the seeds. Vanda is one of the commonly cultivated genera that have high commercial value (Uchida, 1994). Based on the study that is fulfilled by Beaman et al. (2001), poorly preserved herbarium collections and insufficient information about the flower species for genus Vanda have made it substantial to practise cultivation upon the species. The significance in performing in vitro seed germination of Vanda hastifera is to optimize the seed germination process under in vitro condition in which the conditions and requirements of seed germination can be well-controlled. This can prevent the waste of resources and conserve the process of seed germination in making sure of the efficacy of the process . Furthermore, the addition of organic additives in appropriate concentration under proper circumstances can also enhance the effectiveness of seed germination carried out in vitro with relatively low expenses. The objectives of the study are: To investigate the effect of organic additives on in vitro seed germination of Vanda hastifera. To optimize the in vitro seed germination process of Vanda hastifera. To develop an appropriate and cost-effective protocol for in vitro seed germination of Vanda hastifera. 2.0 Literature Review 2.1 Vanda hastifera (Orchidaceae) According to Metusala and O’Byrne (2012), there are around ten taxa comprised in the genus Vanda section Hastifera which are distributed in the area of Borneo, Philippines, Lesser Sunda Island, Maluku, Sulawesi and New Guinea. The typical characteristics of section Hastifera are like complex lip with its apex divided into two buttock-like lobules and two dagger-like lobules bulging sideways from the base of the thickened mid-lobe (Metusala O’Byrne, 2012). Among the species of orchids in genus Vanda, Vanda scandens and Vanda hastifera have exhibiting all of the characteristics of section Hastifera. The name of Vanda hastifera is derived from Latin hastifer. Vanda hastifera is a fascinating species of orchid that has outstanding appearance which the fragrant flower for about 4.5 cm to 5 cm is fleshy and marked unevenly with brownish red blotches (Chan et al., 1994). Beautiful pale cream or pale yellow sepals and petals are reflexed. As revealed by Chan et al. (1994), the both the dorsal sepals and lateral sepals are spathulate with undulant margin. The white side lobes of the lip has shiny mid-lode at the top and side of the apex which joined to a short column-foot. The lower surface of the apex is purple to brownish purple with two reddish lines near the base. There is found to be a very hairy auricle at the base of the lip (Chan et al., 1994). Likewise, the edge of the mid-lobe is also hairy. The ligulate leaves of Vanda hastifera is about 15-20 Ãâ€" 2-2.5 cm which is dense and linked to a sheathing base. The embryo of Vanda differentiates into three sections in its early development, which are parenchymatous, meristematic and suspensor (Arditti, 1967). Based on the research done by Alvarez (as cited in Arditti, 1967, p. 4), the parenchymatous tissue is acting on supplying nutrition to meristem after the early degeneration of suspensor. 2.2 Orchid seed germination The orchid seed is very fine and delicate. The weight of the seed is varied from 0.3  µg to 14  µg; the length is to be at a range of 0.25 mm to 1.2 mm; and the width is around that of 0.09 mm to 0.27 mm (Arditti, 1967). The seed of orchid is normally produced in a large quantity in which Arditti (1967) indicated that a capsule may contains about 1,300 to 4,000,000 seeds. The orchid embryo usually maintains its globular or spherical shape in contrast to the great variety of the shape of the seed coat which may be in globular, elliptical, rounded, butterfly shaped or fusiform (Arditti, 1967). The swelling of embryo during germination will rupture the seed coat. This will lead to the formation of spherical or cone-shaped seedling which is the protocorm stage for orchid seed germination (Arditti, 1967). The protocorm is an undifferentiated mass of cells (McKendrick, 2000). Subsequently the first leaf primordium will project out of the upper flat surface. The protocorm then starts growing and the absorbing hairs starts to emerge at the periphery of the lower surface. Next, the first minute leaf is produced (Arditti, 1967). Soon after this, the first root will be formed. The development continues until a small plant takes it shape. In relation to orchid seed germination and development in nature, fungus infection is seemed to be a substantial factor for certain tropical epiphytic orchids (Arditti, 1967). This is because as the seeds are insufficient with the carbohydrate reserves, the young plant requires the supply of nutrients, sugar and organic material from the mycorrhizal fungus until the plant is capable of producing its own food (McKendrick, 2000). Once the fungus is penetrated into the seed, it is to be as an exogenous carbohydrate for the growing embryo upon the digestion of the fungal hyphae (Kauth, 2005). Moreover, fungi may be treated as a water supply as germination is started by imbibition (Yoder et al. as cited in Kauth, 2005, p. 2). 2.3 Research history of In vitro seed germination of orchid In vitro methods are used to improve and assist the development of plants that are vulnerable to grow in the nature (Fay, 1992). The use of symbiotic and asymbiotic in vitro germination techniques have been used for the seed germination of some orchid species (Fay, 1992). For the seeds that are to be germinated symbiotically, sowing is performed with a piece of mycorrhizal fungus. Symbiotic relationship is established when the fungus propagates and colonized the seed germination media (Mckendrick, 2000). Before the plant capable of making its own food, the fungus is thought to be sustaining the protocorm. Nonetheless, the proper strain of mycorrhizal fungus is required or else it might lead to seedling death as the fungus strain becomes parasitic. Proliferation of temperate terrestrial orchids is suitable to apply with this technique. On the other hand, tropical orchids are easier to grow as compared to temperate terrestrial orchids. Thus, asymbiotic germination method is normally us ed for the in vitro germination of tropical orchids. The media used appeared to be more intricate than that used in symbiotic germination (McKendrick, 2000). Without the mycorrhizal fungus, the nutrients required for proper germination have to be supplied fully. There are examples of simple media which are used for the seed germination of orchid which include Vacin and Went (VW), Hyponex and Knudson C medium (Paek et al., 2011). Without using the mycorrhizal fungus as a symbiotic element, Knudson (as cited in Kauth, 200, p. 3) has achieved successful seed germination for several epiphytic orchid genera which lead to the development of Knudson Solution B. After that, Knudson substituted ferric phosphate with ferrous sulphate and supplemented manganese into the medium in order to develop a more complex Knudson C medium that enable the in vitro seed germination and plant tissue culture suitable for more species (Kauth, 2005). Table 1: Media composition of  ½ MS, VW and Knudson media (Paek et al., 2011). Component  ½ MS (mg/L) VW (mg/L) Knudson (mg/L) Macronutrients NH4NO3 825 (NH4)2SO4 500 500 Ca3(PO4)2 200 Ca(NO3)2. 4H2O 1000 CaCl2.H2O 220 MgSO47H2O 185 250 250 KNO3 950 525 KH2PO4 85 250 250 Micronutrients Na2EDTA 18.65 FeSO4.7H2O 13.9 25 Fe2(C4H4O4).2H2O 28 H3BO3 3.1 CoCl2.6H2O 0.0125 CuSO4.5H2O 0.0125 MnSO4.4H2O 11.15 7.5 KI 0.415 Na2MoO4.2H2O 0.125 ZnSO4.4H2O 4.3 Organics Glycine 2 Myo-inositol 100 100 Nicotinic acid 0.5 1 Pyridoxine 0.5 Thiamine HCl 0.1 1 Adenine sulphate 10 The media composition is an important factor that will affect the efficiency of seed germination in vitro. MS medium added with 2,4-Dichlorophenoxyacetic acid (2,4-D) was reported to be favourable for the formation of protocorm-like-bodies (PLBs) and regeneration of plantlet for Dendrobium orchid (Nasiruddin et al. as cited in Aktar, Nasiruddin Hossain, 2008, p. 69). According to Mishra, Rawat, Nema and Shirin (2013), who have done an investigation on the effect of medium strength on in vitro germination of Pterocarpus marsupium Roxb. stated that by using different strength of MS basal medium, there is no significant difference on the rate of germination. Therefore, the concentration of MS medium used can be diluted to half so as to reduce the cost without affecting the efficacy of seed germination. Table 2: Modified Hyponex media composition (Paek et al., 2011). Component Seed germination Protocorm multiplication First transplanting Second transplanting Hyponex (g/L) N:P:K= 6.5:6:19 3.0 1.0 1.0 1.0 N:P:K= 20:20:20 1.0 1.0 1.0 Adenine Sulfate (g/L) 5.0 Peptone (g/L) 2.0 2.0 3.0 Coconut water (%) 20 10 10 Potato or banana homogenate (g/L) 30-100 30-100 Activated charcoal (%) 0.05 0.05 0.05 0.05 Germination of seed can be affected by seed maturity. By using asymbiotic in vitro seed germination technique, immature seed has found to be more effective than mature seed to germinate. Claiming that the embryos have developed completely but not yet dedicated to enter the dormant stage, Light and MacConaill (as cited in Fay, 1992, p. 2) suggested that seeds harvested at 43 to 58 days after pollination has found to be ideal for in vitro seed germination of orchid. 2.4 Effects of organic additives on in vitro seed germination Natural complex additives are added into the simple media lack amino acids or vitamins. Examples of organic additives are like potato extracts, coconut water, banana pulp, peptone, and tomato juice. Activated charcoal is believed to have ameliorated the aeration as well as absorbs ethylene and phenolic inhibitors which are the growth inhibitors. Nevertheless, Paek et al. (2011) suggested that the use of charcoal has to be careful as it also absorbs vitamins and plant growth regulators in the culture medium. Occasionally, low concentration of auxin and cytokinin are needed and supplemented into the media in the early stage of protocorm proliferation for certain species of orchids (Paek et al., 2011). Besides, sucrose is also being added into the media in the early stage of tissue culture. However, Paek et al. (2011) claimed that the plantlet differentiation of some genera of orchids may be improved in a medium which has low concentration of sugar. A research done by Islam, Akter and Prodhan (2011) which used Vanda roxburgii orchid as model has proven that by adding potato extract into the medium of seed germination in vitro, the percentage of seed germination and seedling growth can be increased substantially. From their study, they have found that by supplementing potato extract at the concentration of 200 ml/L showed the best percentage of seed germination for Vanda roxburgii which is 78.24% as compared to the 17.2% of control (Islam et al., 2011). Therefore, it is proposed by Islam et al. (2011) that seed germination of Vanda orchids can be boosted by adding appropriate concentration of potato extract into the medium. It is testified that in 100 g of raw materials of potato extract, there is 1.0 mg of niacin which is believed to be accountable for the orchids’ development. Recent study accomplished by Tharapan, Thepsithar and Obsuwan (2014) has observed the effect of potato extract (PE), soy milk, cow milk and peptone on the development of Dendrobium discolor’s protocorms and seedlings growth of Dendrobium Judy Rutz by using Hyponex medium. After two months, protocorms were found developed in all culture vessels with different combinations of organic supplements in Hyponex medium. For the seedling growth of Dendrobium Judy Rutz, Hyponex medium with supplementation of 100 mL/L of potato extract and 2.0 g/L of peptone has achieved with the maximum fresh and dry weight (Tharapan et al., 2014). Conversely, the dry weights obtained from Hyponex medium supplemented with peptone, organic soy powder and milk powder for Dendrobium Judy Rutz’ seedling growth have no significant difference in comparison to the control. On the other hand, the maximum fresh and dried weight as well as shoot height of Dendrobium discolor’s protocorms were obtain ed in Hyponex medium containing potato extract with 2.0 g/L peptone (Tharapan et al., 2014). 3.0 Materials and Methods 3.1 List of Materials Seeds of Vanda hastifera, 0.2% (w/v) HgCl2, 70% ethanol, 1% 2,3,5-tripheny tetrazolium chloride (TTC), MS medium, KC medium, Hyponex medium, coconut water, potato extract, banana homogenate, peptone, yeast extract, tomato juice, 0.9% (w/v) agar, sucrose, activated charcoal, NaOH and HCl. 3.2 Sterilization of the seeds Immature seeds of Vanda hastifera is surface sterilize by submerging in 0.2% (w/v) HgCl2 for 10 minutes. After this, the seeds will be dipping in 70% ethanol for 15 seconds for further sterilization. Sterilized seeds are then washed with sterile distilled water for 5 to 6 times. These procedures are operated in a laminar flow hood. The viability of the seeds is examined by staining the seed with 1% 2,3,5-triphenyl tetrazolium chloride (TTC) solution (pH 7). The staining is carried out in darkness. Observation is performed by using stereoscopic microscope (Yamazaki Miyoshi, 2006). Viable embryos are those shows orange to red colour under the stereoscopic microscope observation (Lauzer, Renaut, St-Arnaud Barabà ©, 2007). This procedure has proven effective for testing the viability of epiphytic tropical orchid’s seeds (Singh as cited in Vujanovic, St-Arnaud, Barabà © Thibeault, 2000, p.79). 3.3 Media preparation Half and full strength Murashige and Skoog (MS) medium (Murashige and Skoog, 1967), KC medium (Knudson, 1946) and Hyponex medium (Kano, 1965) are supplemented with various organic additives in different concentration to examine their effects on in vitro seed germination of Vanda hastifera. Coconut water (5, 10, 15, 20% v/v), peptone (0.2% w/v), yeast extract (0.2% w/v), potato extract (1, 2, 4, 6 g/L) (w/v), banana homogenate (2.5-12.5% w/v), tomato juice (10-20% v/v) are added into the medium. 30 g/L of sucrose and 2 g/L or activated charcoal are also supplemented into the medium. The medium is solidified with 0.9% (w/v) agar. The pH of the medium is adjusted by using NaOH or HCl to between 5.4 to 5.8 prior to autoclave at 121 under 15 p.s.i. for 20 minutes. (Jawan, Gansau Abdullah, 2010; Ali, Murdad Latip, 2011) 3.4 Inoculation The sterilized seeds are then inoculated on to the medium prepared. The spreading of the seeds is to be even over the entire surface of the medium. The Petri dishes with media inoculated with seeds are kept in the culture room provided with 16 light /8 dark hours of photoperiod at 25 ±2. The light intensity is to be at 20-50  µmolm-2s-1 provided by cool white fluorescent tubes (Jawan et al., 2010; Ali et al., 2011). The relative humidity is adjusted at 70-80%. 3.5 Observation and analytical technique Seed germination is indicated by the development of protocorms. According to Ali et al. (2011), it can be seen by the appearance of protocorm from the testa. Observation is carried out at a 20 days interval for up to 60-70 days by using a dissecting light microscope. The number of germinating seed is recorded and tabulated in a table as the percentage of the total number of seeds inoculated (Ali et al., 2011). Analysis of variance (ANOVA) is used to analyse the data. The significant difference or treatment means is subjected to Duncan’s Multiple Range Test (DMRT) at 5% level of probability (Aktar et al., 2008; Ali et al., 2011). 4.0 Expected outcome The seed germination of Vanda hastifera that is conducted in vitro will be very effective. It is greatly affected by the medium composition, concentration of organic additives supplemented and the light intensity. It is expected that the  ½ MS will be the best medium for in vitro germination of Vanda hastifera. Organic additives like potato extract, peptone and coconut water are expected to give better results in the experiment as compare to other organic additives.

Tuesday, November 12, 2019

Six Sigma Question Paper

MGT 561 – Operations Management Exam B Student Name: ____________________________Date: _________ Operations and Productivity (each question is worth 1 point) 1) Manufacturing and service organizations differ chiefly because manufacturing is goods-oriented and service is act-oriented. TrueFalse 2) Operations, marketing, and finance need to function independently of each other in most organizations if they are to be truly effective as an organization. TrueFalse 3) â€Å"How much inventory of this item should we have? † is within the critical decision area of quality management? TrueFalse 4) Customer interaction is often high for manufacturing processes, but low for services. TrueFalse 5) Productivity is the total value of outputs produced divided by the total value of all inputs to the transformation process. TrueFalse The operations function includes which of the following activities. a) forecasting b) capacity planning c) scheduling d) managing inventories e) all of the above Manufacturing-related jobs are decreasing in America for which of the following reasons. a) global competition b) technology advances ) because manufacturing workers in California earn $25K/yr less than service workers d) a and b e) b and c Which of the following is not a typical service attribute? a) easy to store b) intangible product c) customer interaction is high d) simultaneous production and consumption e) difficult to resell Operations Strategy in a Global Environment (each question is worth 1 point) One reason to globalize is to learn to improve operations. TrueFalse 10) Dec isions that involve what is to be made and what is to be purchased fall under the heading of supply chain management. TrueFalse The use of a SWOT analysis is only applicable to manufacturing organizations? TrueFalse The product life cycle phases include introduction, growth, maturity, and decline. TrueFalse Which of the following is true about business strategies? a) an organization should maintain its strategy for the life of the business b) all firms within an industry will adopt the same strategy c) well defined missions make strategy development much easier d) strategies are formulated independently of SWOT analysis e) organizational strategies depend on operations strategies The ability of an organization to produce services that, by utilizing the consumer’s five senses, have some uniqueness in their characteristics is a) mass production b) time-based competition c) differentiation d) flexible response e) experience differentiation Which of the following is the best example of competing on low-cost leadership? a) a firm produces its product with less raw material waste than its competitors b) a firm offers more reliable products than its competitors c) a firm’s products are introduced into the market faster than its competitors d) a firm advertises less than its competitors Which of these is not one of the characteristics of high return on investment organizations? a) high product quality b) high capacity utilization c) low investment intensity d) low direct cost per unit e) global location Design of Goods and Services (each question is worth 1 point) Studies confirm that firms considered to be industry leaders typically generate 15-20 percent of their overall sales from new products released over the last 5 years. True False 18) QFD stands for quality for development. True False Value analysis focuses on design improvement during production. True False 20) The analysis tool that helps determine what products to develop, and by what strategy, by listing products in descending order of their individual dollar contribution to the firm is a) decision tree analysis b) pareto analysis c) breakeven analysis d) product-by-value analysis e) product life cycle analysis 21) Quality function deployment a) determines what will satisfy the customer b) translates customer desires into the target design c) is used early in the design process d) is used to determine where to deploy quality efforts e) all of the above 2) Which of the following is true concerning CAD? a) accurate information flows to other departments b) most product costs are determined at the design stage c) design options are easier to review before final commitments are made d) virtually all products have their development cycle shortened e) all of the above are true The dimensions, tolerances, materials, and finishes of a component are typically shown on a (an) a) eng ineering drawing b) bill of material c) statement of work d) work order e) none of the above Managing Quality (each question is worth 1 point) 4) An international quality standard developed to establish commonly accepted procedures to manage product quality is ISO 9000. True False 25) Statistical process control, one of the tools of total quality management, uses statistics and control charts to evaluate processes. True False 26) The concept of selecting best practices to use as a standard for performance is referred to as a quality circle. True False 27) Generally speaking, the cost of quality represents the cost of doing things wrong, that is, the price of nonconformance. True False 8) Which of the following is not one of the major categories of costs associated with quality? a) prevention costs b) appraisal costs c) internal failures d) external failures e) none of the above, they are all major categories of costs 29) A successful total quality management (TQM) program incorporat es all of the following except: a) continuous improvement b) employee involvement c) benchmarking d) centralized decision-making authority e) none of the above 30) The â€Å"four M’s† of cause-and-effect diagrams are a) material/machinery/manpower/methods b) material/methods/men/mental attitude ) material/management/manpower/motivation d) none of the above Supply Chain Management (each question is worth 1 point) 31) The objective of the make-or-buy decision is to help identify the products and services that should be purchased externally or made internally. TrueFalse Because service firms do not acquire goods and services externally, their supply chain management issues are insignificant. TrueFalse Blanket orders are a long-term purchase commitment to a supplier for items that are to be delivered against short-term releases to ship. TrueFalse 34) One of the keys to effective supply chain management includes developing â€Å"long-term partnerships† with key suppliers. TrueFalse 35) Standardization is the process of increasing the number of variations in materials and components to assist in supply chain’s efforts to enlarge their supplier base. TrueFalse In supply chain management, ethical issues a) are particularly important because of the enormous opportunities for abuse b) may be guided by company rules and codes of conduct ) become more complex with the increasing trend toward global suppliers d) may be guided by the standards of the Institute for Supply Management e) all of the above are true An approach that seeks efficiency of operations through the integration of all material acquisitions, movement, and storage activities is a) integration b) logistics management c) line balancing d) product design e) none of the above Inventory Management (each question is worth 1 point) 38) One function of inventory is take advantage of quantity discounts TrueFalse 9) ABC analysis is based on the presumption that carefully controlling all items is necessary to produce important inventory savings. TrueFalse 40) In cycle counting, the frequency of item counting and stock verification usually varies from item to item depending upon the item’s ABC classification. TrueFalse 41) Insurance and taxes on inventory are part of the costs known as setup or ordering costs. TrueFalse 42) Most inventory models attempt to minimize a) total inventory based costs b) the number of orders placed c) the safety stock ) the likelihood of a stockout e) the number of items ordered 43) The major purpose of safety stock is to a) replace failed units with good ones b) eliminate the possibility of a stockout c) eliminate the likelihood of a stockout due to erroneous inventory tally d) control the likelihood of a stockout due to the variability of demand during lead time e) protect the firm from a sudden d ecrease in demand 44) The following are inventory models for independent demand a) basic economic order quantity (EOQ) b) production order quantity c) quantity discount model ) a and b only e) a, b, and c JIT and Lean Production Systems (each question is worth 1 point) 45) In a JIT system, product inspection adds value by identifying defective items. True False 46) Because most services cannot be inventoried, there is little place for JIT to help service organizations achieve competitive advantage. True False Kanban is the Japanese word for card that has come to mean â€Å"signal† in JIT terminology. TrueFalse Setup time reductions are not a key aspect of an effective lean production system. True False 9) If the goals of JIT partnerships are met, which of the following is a result? a) for incoming goods, receiving activity and inspection are outsourced b) in-transit inventory falls as suppliers are located closer to facilities c) the number of suppliers increases d) in-plant inventory replaces in-transit inventory e) all of the above are consequences of meeting the JIT partnership goals 50) Which of the following is not a layout tactic in a JIT environment? a) work cells for families of products b) fixed equipment c) minimizing distance d) little space for inventory e) poka-yoke devices

Sunday, November 10, 2019

Ethical Issues in Business

2. Ethical Issues in Business. It seems that every day in the news we are hearing of new company that has acted at least unethically and possibly illegally in the operation and financial reporting of their company's business dealings. There are many ethical issues in business. One major issue that we see is over and under reporting net income. Companies like to show that every quarter the net income of the business has an increase or profit. In order to show this they adopt unethical or illegal means in the operation and financial reporting.One such method is the indiscriminate use of stock options for employees that enable companies to take employment costs off balance sheet and inflate earnings. With the recent ethical issues we have had companies over the years it is important that we pay close attention to financial reporting provided by companies. This method will reduce the equilibrium price and increase equilibrium quantity for this company's products and services. The reason for this is that the wage is bill is shown lower than what it actually is. This causes the supply curve to shift to the right.With an increase in supply, if the firm is a monopoly/oligopoly/monopolistic competition, there will be a decline in the price of the product of the firm. In case the firm is operating in perfect competition, there will only be an increase in the quantity the company sells in the market. The scenario described above indicates that there is a shift in the supply curve, in other words the costs are shown to be lower than what they actually are at the time. The supply curve shift to its right but its elasticity is not affected.As the method described above does not relate to demand, the elasticity of demand is not directly affected. Any market structure, perfect, monopoly, oligopoly or monopolistic competition, the same ethical issues arise, the salary cost is underreported because of the use of stock options. This means costs are shown at a lower rate and profi ts are inflated. The decision to show inflated profits is unethical. From the deontological ethical perspective it is the duty of the management to show the correct profits and not inflated profits. Chapter 3, Question 14Assuming that the demand and supply for premium coffees are in equilibrium, the price will be at a constant, without significant pressure from the market. If Starbucks introduced the world to premium blends, this would cause a positive shift in the demand curve. There a higher equilibrium price and higher quantity when demand increases and supply remain unchanged. As prices increase, and the market moves to a new equilibrium, we will see higher wages, more advances and investments in technology and infrastructure, and greater competition.As production become more efficient and competition becomes greater, supply will increase and cause prices to settle back down. There are several factors that will impact the long-term equilibrium, such as changes in supply. For exa mple, if a hard freeze eliminated Brazil’s premium coffee crop, this would cause a negative shift in the supply curve. Assuming demand remains constant a negative shift in the supply curve will cause quantity to decrease and equilibrium price to increase. Research shows that in 2011 a frost occurred in Brazil's southeastern coffee growing belt.Traders worried that next year's yields could be hurt. At the same time, heavy rains during harvest forced Columbia to reduce its crop estimate for 2011. Understanding the impact of problems along the supply chain and how the changes in supply will impact prices in the market allows real world investors to make predictions of price in the future. This is important for businesses along the supply chain as well, in order to â€Å"stay ahead of the curve† when making strategic business decisions. ? Chapter 5, Question 17Assuming there is a large rise in the demand for computer chips and potato chips. Potato chips manufacturers will be able to respond to a rise in demand quicker than a computer chip manufacturer. This is due to the fact that potatoes are more readily available, and the process for making potato chips is not as involved or difficult. The tools, materials and highly skilled labor force it takes to manufacture computer chips are more complex and will require more time to complete. Both manufacturers may attempt to ramp up production by adding another shift to the existing production line.Another option in the short run may be to contract another company to assist with the manufacturing as the demand increases or purchase/rent additional equipment to expand the production lines as needed to keep up with the demand and process request. In the overall big picture the positive shift in demand will put pressure on the market for increased competition. In order to maintain market share and maintain competitive advantage, both manufacturers will need to deliver value to the customer either in the form of a differentiated product or lower prices. In the long run, both of these priorities will be achieved through investment.A decision will have to be made that either investment in more efficient production and supply chain management, or more investment in a better product that stands out in the market. The long run success will also be dependent on the abilities of the entire supply chain to keep up with demand. If the demand is large but you are unable to meet the demand and supply the products it means nothing. The disadvantage of the potato chip company is that no matter how many potato chip factories you build, the manufacturer is still at the mercy of how many potato crops can be grown in a given season.

Friday, November 8, 2019

Simple Web Page Hit Counter Code Using PHP and MySQL

Simple Web Page Hit Counter Code Using PHP and MySQL Website stats provide important information to a website owner about how the site is doing and how many people visit. A hit counter counts and displays how many people visit  a webpage. The code for a counter varies depending on the programming language used and the amount of information you want the counter to collect. If you, like many website owners, use PHP and MySQL with your website, you can generate a simple hit counter for your webpage using PHP and MySQL. The counter stores the hit totals in a MySQL database. The Code To get started, create a table to hold the counter statistics. Do that by  executing this code: CREATE TABLE counter ( counter INT( 20 ) NOT NULL );INSERT INTO counter VALUES (0); The code creates a database  table named  counter with a single field also called counter, which stores the number of hits the site receives. It is set to start at 1, and the count increases by one each time the file is called. Then the new number  is displayed. This process is accomplished with this PHP code: ?php// Connects to your Database mysql_connect(your.hostaddress.com, username, password) or die(mysql_error()); mysql_select_db(Database_Name) or die(mysql_error());//Adds one to the countermysql_query(UPDATE counter SET counter counter 1);//Retrieves the current count$count mysql_fetch_row(mysql_query(SELECT counter FROM counter));//Displays the count on your siteprint $count[0]; ? This simple hit counter doesnt give the website owner valuable information such as whether the visitor is a repeat visitor or a first-time visitor, the location of the visitor, which page was visited, or how much time the visitor spent on the page. For that, a more sophisticated analytics program is necessary. Counter Code Tips Wanting to know the number of people who visit your site makes sense. When you are comfortable with the simple counter code,  you can personalize the code in several ways to work better with your website and gather the information you seek. Customize the database, table, and code to include other informationHold the counter in a separate file and retrieve it using include ()Format the counter text using regular HTML around the include functionCreate different rows on the counter table for additional pages on your website

Wednesday, November 6, 2019

English Speech Essays

English Speech Essays English Speech Paper English Speech Paper What is a distinctive voice? How are great ideas communicated? What do you want your audience to think, feel, act or do? I am here to tell you all these things so listen up as I try to convince you that effective speeches require a distinctive voice. I will explore the effects of distinctive voices In Martin Luther Kings l have a dream speech, John. F. Keenness Inaugural address and Nelson Mandelas Inaugural address. Passion Is a fundamental aspect of speeches and It comes through the sustained use language techniques, which Martin Luther King Jar explored in his l have a dream speech. MILK was a passionate leader and a civil rights activist who pushed for racial quality in America in 1963. Kings lavish use of metaphors such as America has given the Negro people a bad check which has come back marked Insufficient funds which signifies how America has overlooked the Negroes, is a clear representation of how distinctive voices need great ideas. One of the key Ideas King proposed was racial discrimination for Instance the Negro Is soul languishing In the corners of American society and finds himself an exile In his own land portrays the white peoples disclaim towards the Negroes. Another strong adaptor are slaves for example, I have a dream that one day on the red hills of Georgia the sons of former slaves and the sons of former slave owners will be able to sit down together at a table of brotherhood. Slaves implies Injustice and Is a highly evocative word for both black and white people. Slave-owners were white and black and white are thus bought together. Hence, red hints at blood, implying the pain, struggle and injustice the Negroes suffered. Kings preaching voice confirms he was a Baptist minister and is reflected in biblical illusions such as Let us seek to satisfy our thirst for freedom by drinking from the cup of bitterness which evokes Jeremiah 2:1 5 and represents a heartbreaking voice of Negroes In despair. HIS persuasiveness further helped change the nations racial landscape for the better and motivated the audience to act or change their attitude. His preaching and passionate voice along with the use of language techniques portrays how great ideas need great voices. Im sure many of you have heard candidates presenting Inaugural addresses after elections. Have you heard of John. . Kennedys Inaugural address? J. F. K was the 1 OFF youngest man elected us president Ana ten TLS Roman catholic president . Nine voice that is evident in his speech is a hopeful voice of a political leader striving for peace which is highlighted in metaphors such as tempered by war, disciplined by a hard and bitter peace, which represents the Cold war. For man holds in his mortal hands the power to abolish all forms of poverty and all forms of human life is another compelling metaphor which demonstrates that we can eradicate poverty but we can also take away life. Jiffs inclusive language such as We is fascinating because he is including all Americans in his belief. Emotive language such as We shall pay any price, bear any burden, meet any hardship, support any friend, oppose any foe, to assure the survival and success of liberty appeals to the audiences emotions and helps to achieve his aim for freedom and human rights. Rhetorical questions such as Will you join in that historic effort? Leaves the audience thinking whether they will adhere to forging against enemies and combat for peace and freedom. Can you see how his read ideas shine because of his passionate voice, inclusive language, and language techniques? Most of you have probably heard of the famous name Nelson Mandela. Mandela was the first black president of South Africa who got rid of apartheid and helped end legal racial segregation in his nation. His Inaugural address can be described as a motivational, persuasive and inspirational speech. It represents the voice of a visionary and an enthusiastic leader as seen in metaphors like such as the depth of the pain we all carried in our hearts as we saw our country tear itself apart in a rebel conflict which refers to the anguish they endured through the apartheid system. His passion and courage embodied a distinctive voice that exclaims their rights for freedom, Justice and peace which is highlighted in metaphors like Valley of darkness, which refers to the desolation they lived in, and blood-thirsty forces who still refuse to see the light. Mandela found success because he was able to make people want him to win, engage their emotions and involve them in his endeavourers and make it their own. Parallelisms such as he time for the healing of wounds has come the moment to bridge the chasms that divide us has come the time to build is upon us God bless Africa! portrays their progress into a new beginning and shows he has found a way to dig deep into South Africans hearts. Emotive language such as We shall build the society in which all South Africans, both black and white, will be able to walk tall, without fear in their hearts is very touching and is similar to Kings dream where little black boys and black girls will be able to Join hands with little white girls ND white boys. His charisma, self-depreciating sense of humor and lack of bitterness over his harsh treatment as well as the use of native tongue within the speech makes It powerful Ana relevant to onlookers scallop. I nose qualities snap his meanings and reflected a distinguished voice. Now are you convinced that effective speeches require a distinctive voice? You should now have a broader understanding of how great ideas need great voices. Without a passionate, courageous, confident and a distinctive voice, your speech will not be very effective in retorting your key ideas and accomplishing success. Ideas shape the course of history and a distinctive voice is the root of great ideas. These great speaker with great voices have changed the universe by inspiring people so never doubt that a small, group of thoughtful, committed citizens can change the world. I therefore challenge you to participate in this process whenever you say a speech because who knows? Maybe one day youll be an effective leader like Mandela, Kennedy or King or you can participate in creating change to make the world a better place.

Sunday, November 3, 2019

Principles of Economics Essay Example | Topics and Well Written Essays - 1000 words - 2

Principles of Economics - Essay Example There are economics variables and principals of solving the problem of alcohol abuse. First, by increasing the prices of alcohol, the authority will require that the goods will not be easily affordable, and it would require people to stop in order to afford it. The government would be required to accumulate tax on a product that is used in fermentation or to increase the tax of finished products. Increase in tax will force producers raise the prices of alcohol. Lastly, economist suggests that by limiting the place and time used in taking alcohol can minimize the cases of alcohol abuse. Authorities in many countries have passed legislation that increases the time costs used in taking beverages. High costs licences are levied to those that require more time to develop their businesses and also restricting certain area by increasing the cost of doing business (Cook, 2002). Alcohol abuse can also be mitigated through packaging. The government through legislation can control the least amo unt of alcohol that can be packaged in a container. The aim of control is to minimize the affordability of beverages. Large amount of alcohol would be more expensive than when packaged in smaller packets (Cook, 2002). Question 2 Prescription drugs are those drugs that require a prescription from a doctor before one can use them. This problem has affected the free flow of drugs, therefore, affects the supply and demand of other goods. Prescriptions drugs are taken with other goods. Example, doctors prescribe drugs and encourage meals that increase the health of patients to help them recover from their ailments. Therefore, prescription drugs complement other product like food, fruits and beverages. Increased use of prescribed medication increases the demand for food, fruit and beverages and reduction of the same reduced the need of food, fruits and beverages (Anderton, 1977). Prescription drugs change the demand and supply of other drugs. Patient who would rather buy drugs over the co unter do not do so when they seek medication from doctors. Therefore, increase in prescription drugs reduces the provision of other drugs in the market. Prescription drugs increases the demand for medical service. Specialized medical doctors earn a lot when more patients seek their services. As more and more cases that need patient to seek medical attention, the demand for those services increases. However, decrease in the supply of prescription drugs has a negative impact on doctor’s services. Question 3 Elasticity is the sensitivity of supply and demand to changes in the affecting factors. Elasticity can also be defined as the degree of variation of demand when price change or the amount of change in supply when price changes. Elasticity is a key factor to consider when there is a shift in supply because it determines the degree of a change in the quantity supplied. Elastic demand curve has little effect when there is a shift in the supply curve. Inelastic demand curve has a large magnitude on the shift in the supply curve (Stonebraker, 2013). On the other hand, elasticity of supply is a factor to consider in the shift of the demand curve because it elasticity help determine the extent of the quantity demanded in a given time. A shift in the supply curve when is less when the demand curve is relatively elastic. Inelastic demand curve has a significant change in the quantity demanded in case of a shift in demand curve. The principal of elasticity of demand and supply in the shift of

Friday, November 1, 2019

Fingerprint scientific method Coursework Example | Topics and Well Written Essays - 500 words

Fingerprint scientific method - Coursework Example It comprises 3 steps to compute a fingerprint. No. 1 – an approximation algorithm is used to compute a reduced-fidelity version of the target digital object. No. 2 – this reduced version is put into a normalized serial form, and No. 3 – a hash function is used to compute a unique fingerprint from the resulting serialized object. The UNFs approach is somewhat similar to that of audio & video fingerprinting. However, in contrast to audio and video fingerprints, which entail a long sequence computation, UNFs use a more concise and closely related representation, suitable for use in scholarly citations. Thai, L. & Tam, H. (2010) under ‘Standardized fingerprint model’ states, â€Å"The model includes the following steps: (1) Pre-processing fingerprint image: for each image, we recognize fingerprint area, thinned ridge lines and extract minutiae. (2) Finding and adjusting parameter sets: at first, choose a fingerprint which has largest fingerprint area as mean image.