Anatomical features Essay Example | Topics and Well Written Essays - 500 words

Anatomical features - Essay Example Radiometric analysis gives ‘Ardi’’s age as 4.4 million years, making her the oldest known hominid species to date. Ardi’s skeleton suggests a unique versatility and provides evidence of both biped and quadruped locomotion. The study of Ardi’s feet shows the markedly splayed big toe which facilitates the grasping of tree limbs, marking her as a quadruped in the trees. However, the presence of a small bone inside a foot tendon, which is absent in both chimps and gorillas, increases the rigidity of the big toe. This feature, in combination with other toe modification, promotes biped locomotion on the ground. Similarly, the pelvis shows both the large flaring upper bones which facilitate steady bipedality, and the lower pelvis which accommodates the huge hind limb muscles used in climbing like an ape. Again, unlike the strictly rigid wrist bones of chimps and gorillas, which are geared towards hanging from trees and knuckle-walking on the ground, Ardiâ⠂¬â„¢s highly flexible wrists and finger joints indicate that Ardi walked on her palms on tree limbs – like primitive apes. (Shreeve. October 1, 2009. National Geographic News). The most famous fossil remains of Australopithecus afarensis are the skeleton, "Lucy" found at Hadar, Ethopia, in 1974, the infant found at Dikika, Ethiopia, in 2006, and the 3.7 million years old footprints found in volcanic ash plus fossil bones found at Laetoli, Tanzania in 1978. The anatomical features in all these cases suggest that Australopithecus afarensis was capable of both bipedal and quadruped locomotion. Lucy’s long arm bones, and the ridge formed by the tendons attached to the humerus, indicate the strong chest and upper arm muscles required for tree climbing. However, her short, broad pelvis supported her upright body and her angled-in thigh bones maintained her weight directly above her knees – both optimum features for walking. Likewise, while Lucy’s compact,

Cost and Quality Analysis Essay Example | Topics and Well Written Essays - 1000 words

Cost and Quality Analysis - Essay Example The two are intimately related. However, Brent (1989) explains that there is a certain quality of the health care can lead to lower costs. This is because of the failure of the process to bring a series of high costs. The unit output of the healthcare services is scrapped while the resources used in the production are wasted. In order to recover the scrapped units, additional resources have to be reallocated to the appropriate deficiency. These allocations involve those aimed at replacing the customer who is lost due dissatisfaction in the organization. The organization may also be liable for the additional warranty cost and other damages traced to the failure. Brent (1989) explains that, the lower quality will eventually result to higher costs for the organization. The additional costs arise due to the liability of the process failure caused by the low quality of the services offered to the customer. This situation is termed as Quality waste, which is a representation of the consump tion of resources for repairing the output unit that fails to meet the expectations of the customers. The waste is traced through identification scrap and rework. This is a way of managing and eliminating quality wastage from within the organization aimed to improve the quality of the services. ... Their aim is to focus on the evaluation of the quality of healthcare provided in the hospitals. Buttell, Hendler and Daley (2007), the government has actively engaged in the pursuit of establishing accreditation standards. The other initiative that they are taking is to develop a board recertification to physicians and health care organizations. This is in order to focus on their reporting of the public performance information. These organizations and physicians are to be licensed via multispecialty group practices. An independent agency is established with the roles and responsibilities to review the effectiveness via the public and private partnership. This is aimed at establishing guidelines with standards for the provision of better health care services. Through these agencies, parameters are set about the care that is anticipated to all customers. These parameters include access to medical records, reasonable waiting duration and regularity source of care. The agencies are also focusing on establishing a performance standards aimed at gauging the meeting of the standards. This is in order to regulate the performance of the medical services quality provided to the customers. The agencies are also aimed at separating the generation of the evidence of the translation of the guideline and the anticipated standard. There are initiatives that are focused at improving the quality of services and at the same time incorporating costs control. By the nature of the health care being a process that comprises of series. In order to effect the operations of an institution that provides health care services, the organization should seek to establish

Art 123 Essay Example | Topics and Well Written Essays - 500 words

Art 123 - Essay Example The theme is naturalistic. There is a spirit of expectation. Masaccio modeled his figures as solid as statues to be realistic, by using strong light in particular areas to give shadow effect in his figures, complying with the principle of Renaissance along with naturalism. The featured background is done with linear perspective of mountains and temple structure that is drawn symmetrically. Renaissance artists, writers and thinkers are said to have respect for order, symmetry and proportion. In addition to this are the realistic facial expressions of the figures. For example, the face of St. Peter, in his effort to bend over and take the money away from the fish's mouth, has turned red. At the right side, the tax collector is illustrated with a satisfied expression on his face while St. Peter hands him over the coin. The actions, gestures and expressions here are what real people express in given circumstances. Figures are dressed in Greek's fashion, in line with the biblical description of dress code during the first century, with tunics tied at the waist, and cloaks wrapped over their left shoulder, around the back, and clasped at the front. On the other hand, Caravaggio's The Calling of St. Matthew is a Baroque art, as evident by the visual representation of the painting itself, using exaggerated position of the figures which is a principle of Baroque art.

Discrimination of Female Candidates bu Police Departments Assignment

Discrimination of Female Candidates bu Police Departments - Assignment Example I believe this is clearly not an accurate analysis. The role of a police officer can never change. It can expand though, which is more likely to be the scenario now. Conflict resolution, communication skills, and problem-solving abilities have become more critical and hence, it is crucial to assess the candidate’s abilities in these areas. But that certainly does not mean physical confrontation is no longer a part of the job of a police officer of today. Hence, using physical standards to judge a candidate’s abilities will always remain in practice, regardless of how people feel about it. It is true that on the first attempt, most female candidates tend to fail these physical standards at a much higher rate than men. According to the U.S. Justice Department, their rates were 80 percent lower than their male counterparts between 2005 and 2011. Hence, obviously, these kinds of tests tend to reduce the number of eligible females at a higher rate than males. The LAPD, which works to increase women representation in all areas, argues that physical standards such as bench-pressing and the ‘wall’ are pretty useless and discriminatory when it comes to the practice field, so such tests should be removed from the induction exams, so they can easily achieve the desired 43 percent female hiring goal. Law enforcement agencies, however, argue that their fitness criteria are made according to the standards of the job requirement, and not of those of any male or female. This is actually understandable since an agency would want never want to hire an unfit candidate. It is also true that the rate at which females pass the remediation test is nearly equal to that of the male candidates.     

Three Brief Topics Essay Example | Topics and Well Written Essays - 1250 words

Three Brief Topics - Essay Example Eliade's The Sacred and the Profane are enlightens three categories. The Sacred which is a transcendent referent such as God or Nirvana, hierophany which is the advancement of the sacred into human experience where he discusses the revelation of the sacred in a person's life and the third category is idea of homo religiosus where Eliade considers the appreciation and devotion of one to such a breakthrough of supreme power. He describes numinous experience as an appropriate experience of the Sacred by religious human beings or homo religiosus. When a person can experience the amazing, mysterium tremendum and fascinans, both are awesomely fearful and the enthrallingly captivating aspects of the Holy or the wholly other. In expanding and expounding the phenomenological dimensions of the Sacred, Eliade describes the sacred experience in human being as a crucial point of orientation and at the same time it also reveals the ontological reality which is its source of homo religiosus experie nce. For an instance the space is characterized as the boundary between sacred and profane and thus locates the axis mundi as centre. Thus temples and tepees, homes and hearths become sacralized for homo religiosus. ... According to Gerardus even the most ordinary events such as the customary associations with one's neighbors or similarly one's long familiar tasks prove to be replete with mystic interconnections if one examines them more closely. One can completely ignore his own scheme of explanation in terms of single causes and can misconceive life as a broad current of mighty powers. If, for instance, one of the Toradja tribes in Celebes is preparing for an expedition and an earthen pot is broken, then they remain at home, saying that it is measa. This may be translated as a sign, indicating some future misfortune, but that the current of life has been interrupted: If then one thing has been broken, why not more Similarly, when a Ewe tribesman finds refuge from his enemies on a white ant hill he ascribes his escape to the power residing there. Thus the place, the action, the person in which the power reveals itself receives a specific character. Bearers of mana, for example, are sharply distingu ished from the rest of the world: they are self-sufficient.2 References: - The Nature of Religion. The Sacred and The Profane Pages 8-18 by Eliade Mircea Religion in Essence and Manifestation, volume 1 Chapter 4 Potency. Awe. Tabu. by Gerardus Van Der Leeuw, (1967) Pages 43-51 The nature and elements of myth Q2. Discuss the nature and elements of myth and explore a particular myth using the frameworks in the following texts: Chapter 2- Myth and Religion. In Myths: God, Heroes, and Saviors by Billias Leonard J (1986). Chapter 3 'Five monolithic theories'. The Nature of Greek Myths by Kirk G S (1974). Answer: - Myths are the stories from the remote past as in another world or an earlier stage of this

The Secret Life of Walter Mitty Essay Example for Free

The Secret Life of Walter Mitty Essay The Secret Life of Walter Mitty is a short story that deals with the life of a Walter Mitty, a middle-aged, absent-minded man who spends much of his time daydreaming about a fantasy world in which he is at the center of various heroic escapades. During a trip to town with his wife, he dreams about a life filled with images of conquest—he pictures himself as being a Navy pilot commanding a hydroplane in the middle of a storm, a brilliant surgeon about to perform an emergency operation, an adept killer being questioned in court, and a brave soldier on a mission to bomb an ammunition dump. It is an interesting story, which can be interpreted in many different ways. Thematically, it touches on various aspects of social, psychological, as well as existential issues that afflict the common man and that many can relate with. One of the main and prevalent themes in the story is about escapism. Mitty is a timid and henpecked husband who appears to live a mundane and colorless life. He represents the average American middle-class man whose real experiences are dull and conventional. Through his depiction of Mitty, the author suggests that the life of an average, middle-class man offers little opportunity for an exciting existence. Because of this, Mitty tries to escape life through his imagination. This way, he is able to get away from the defeats of his life as well as the conflicts posed by his wife and society in general. The story shows how that for some people, fantasy is a welcome alternative to reality. In his mind, Mitty takes on the characteristics he would like to embody. Not only is he brave and heroic, he can hold quick and witty dialogues in his fantasies. In contrast to real life, he is meek and mild-mannered—in scenes wherein he parks his car and shops for puppy biscuit, it is seen that his real nature is the reverse of that of the characters he imagines himself to be. Another theme deals with failure and the feeling of helplessness in one’s life. Throughout the story, Mitty is shown passively taking orders from his overpowering wife. He wanders into his alternate reality even as his wife gives out orders. It can be speculated that Mrs. Mitty is one of the sources of his frustrations. While in his daydreams he is controlled and â€Å"masculine†, in real life, he lets himself be dominated and ordered around by his wife. His fantasies represent his inner character which he is too afraid to actualize in real life. The fact that Mitty does not complain is a sign that he feels powerless and that he is already resigned to his fate. Therefore, the only way he is able to survive his lackluster life is through his fantasies. Mitty also appears to have issues with self-fulfillment. One can deduce that he is not successful and thus re-creates himself as an accomplished man (i. e. being a celebrated doctor or a dazzling naval commander). Not only does his life lack excitement, it seems that his very existence is deplorable—his wife constantly nags him, park attendants and cops talk down to him, women on the street laugh at his actions. Mitty’s last fantasy can be interpreted a number of ways, one is that it evokes the feelings of helplessness Mitty feels about his real-life situation. He imagines himself facing a firing squad an this shows that he feels tired living his life and that he’d rather not live it.

Measuring Responses of Spinach Leaves in Various Light Waves

Measuring Responses of Spinach Leaves in Various Light Waves Photosynthesis: Measuring the responses of Spinach Leaves in various Light Waves Abstract The object of this study was to measure the amount of Spinach Floating Disks in each of the petri dishes per each experiment set. The experiment was measured by using 100 mL of a 0.2% solution of Sodium Bicarbonate NAHCO3 that was poured into each of the three petri dishes for the two experiments. The 1st experiment tested Carbon Dioxide (CO2) levels created from Sodium Bicarbonate (NAHCO3) in this experiment as to test the hypothesis in comparison to that of Oxygen (O2) to determine as one level increases so will the other. In the 2nd experiment used the working hypothesis which stated that the red dye that simulates the red light spectrum will produce more photosynthesis than that of the blue, whereas green will produce very little if any. Outcomes of the 1st experiment showed that light-dependent photosynthesis reacted to the heat lamp producing more oxygen. Respectively, the red dye had a 100% effective rate of photosynthesis and oxygenation. Introduction According to the Laboratory Investigations for Biology, 2nd Ed. The process of photosynthesis can be summarized in the equation below (John, 2016). Chloroplasts 6CO2 + 12 H2Oà ¯Ã†â€™Ã‚ ¨C6H12O6 + 6H2O + 6 O2 By definition photosynthesis is the process in which some organisms and plants use sunlight to create food from carbon dioxide or CO2 and water or H2O. The products for photosynthesis can be described as the use of carbon dioxide with water to make glucose. A sugar that plants use as a source of food or convert to starch and is stored. A byproduct of this process is oxygen (John, 2016) and (Freeman, et al., 2017). There are two phases in photosynthesis. The 1st phase is known as the light dependent reaction phase. This phase requires a chemical process to occur where the pigment chlorophyll absorbs light energy. It then, in turn use high-energy bonds of ATP and NADPH molecules to complete the process. The 2nd phase of photosynthesis is called carbon-fixation process. This phase does not require light because the energy has already been captured (John, 2016). This phase is similar to the 1st phase in which ATP and NADPH are being used except this process uses carbon dioxide to make glucose. According to (Freeman, et al., 2017) glucose is a simple sugar that is a six-carbon monosaccharide and is the major source for plant food. As stated previously plants can turn glucose a carbohydrate into starch for later use or to reinforce cell walls of the plant. The photosynthesis process as a whole takes place within the chloroplast. Chlorophyll, the green color of plants is a pigment that uses enzymes and other molecules which are required for photosynthesis (John, 2016) Carbon Dioxide (CO2) levels created from Sodium Bicarbonate (NAHCO3) in this experiment is the hypothesis being tested in comparison to that of Oxygen (O2) to determine as one level increases so will the other. If the least amount of diluted NAHCO3 was used up, then the Spinach Leaf will not produce large amounts of Oxygen. This experiment is measuring various strengths of NAHCO3 as the independent variable. Other variables not recorded would include room temperature, the size of the sample, and the health of the plant. In this case the number of the disks floating in the solution is the dependent variable. For this experiment ten punched Spinach Leaf Disks were used for testing purposes. The more oxygen released from each of the disks increases the ability of the disk to float to the surface of the petri dish. This process works because the liquid is being replaced with gaseous compound and regains it buoyancy. For this experiment light was used as the control. According to (Yao, et al., 2017) the increase in photosynthesis rate correlates with the intensity of the light being used. It is also mentioned that a light that is too intense can reduce the photosynthesis rate. Which facilitates an important goal of finding the optimal conditions for cultivation. As explained earlier, the level of development of the chloroplasts is directly affected by photosynthesis. (Yao, et al., 2017) explains that this directly affects the rate of growth of a plant and have different identifying markers under varying light intensities. Leaf morphology which shows plasticity is a reflection of this, where under weak light conditions an experiment on eggplants has shown a specific decrease in of the Datura according to (Mao et al. 2012) taken from (Yao, et al., 2017) in an expanded report on Effects of light intensity on leaf microstructure and growth of rape seedlings cultivated under a combination of red and blue LEDs. (Farquhar and Sharkey 1982) of the same report by (Yao, et al., 2017) caution high-light intensity can cause serious oxidative damages and destroy the photosynthetic system to leaf tissues. Using the determined information from (Yao, et al., 2017), in this lab the experimenters created a unique experiment not to dissimilar from the Effects of light intensity on leaf microstructure and growth of rape seedlings cultivated under a combination of red and blue LEDs. To simulate the light wave spectrum of the Red, Blue, and Green (RGB) the experimenters used food coloring to dye the solute. Where the working hypothesis state that the red dye that is used to simulate the red light spectrum will produce more photosynthesis than that of the blue, whereas green will produce very little if any. The dependent variable will again be the number of floating Spinach Leaf Disks. The independent variable in the unique experiment are the various colors being introduced with the heat lamp for light as a form of light spectrum. The control will be the heat lamp. Replication of this experiment will be conducted by the team of experimenters next the unique experiment station in this report. In this experiment if the red manipulated spectrum of light produces the most oxygen then the other independent variables blue and green will produce little to no oxygen. Methods       According the lab manual by (John, 2016); The experimenters were to conduct three separate light tests to determine oxygen production if any which will cause the Spinach Leaf Disks to float. 100 mL of a 0.2% solution of Sodium Bicarbonate NAHCO3 was poured into three petri dishes. The first test measures the amount of floating disks in a light devoid room. In this case the petri dish with ten disks was placed in a drawer as to keep any light from disturbing the experiment. This part of the process is known as the 2nd phase or carbon fixation as mentioned in the introduction of this paper. The second test uses natural room light, or fluorescent tube lights to measure the amount of floating disks. Using a second set of 10 disks in a petri dish the experimenters allowed ample amounts of room light to expose the disks in order to measure the 1st phase in photosynthesis, light-dependency. The last and final test of the three experiments measures the amount of floating disks under a heat lamp. The experimenters waited 30 minutes for each of the experiments before gauging results. Following the lab manual by (John, 2016) for the unique experiment, the testers duplicated the three test process for step three only. Still measuring the amount of floating disks, the experimenters added the RGB dye to each one of petri dishes. Again the 100 mL of a 0.2% solution of Sodium Bicarbonate NAHCO3 was poured into three petri dishes. Each of the three petri dishes were left exposed to heat lamps for 30 minutes. Results The experimenters evaluated each of the initial three tests under three different conditions. Complete darkness, natural light, and under a heat lamp. Phase 1 of photosynthesis consisted of light dependent plants. Plants grown under natural light served as the control. As identified in (Table 1), the control or natural light did not produce any floating disks. While under increased light, the heat lamp the Spinach Leaf Disks thrived and photosynthesized to the extent of 100% of expected results. Phase 2, or the Carbon Fixation process which does not require light had no effect. Carbon Fixation of the plant did not store enough energy to start photosynthesis. In the unique experiment phase 2 was not conducted. The results of the unique experiment that was tested in three different color spectrums; RBG is listed in (Table 2). Predominately the synthesized red spectrum of light produced the most results of the three colors tested. Table 1 Results of Subjecting Spinach Leaf Disks to Different Light Conditions Light # of Disks Floating % of Disks Floating Dark 0 0% Room Light 0 0% Under Lamp 10 100% Table 2. Results of Subjecting Spinach Leaf Disks to Different Color Spectrums Color # of Disks Floating % Disks Floating Red 9 90% Green 3 30% Blue 5 50% Discussion In experiment one carbon dioxide (CO2) levels created from sodium bicarbonate (NAHCO3) in this experiment was used as the hypothesis that was being tested in comparison to that of oxygen (O2) to determine as one level increases so will the other. The hypothesis was accepted in this experiment. As was predicted, the more light that was exposed the more oxygen would be produced which would cause the disks to float. Sources for error in this experiment would include improper set up of the vacuum flasks conducted by the previous lab experimenters. Other errors would include bad sampling techniques of the Spinach Leaf Disk. More time in this experiment would improve or give more accurate results for photosynthesis. It would allow a greater measure of values from the experiment. Also conducting multiple sets of the same experimented in order to gain and average ratio to gauge success or failure. In this experiment the learned outcome was that photosynthesis works in two ways. The 1st is light-dependent photosynthesis and the 2nd was carbon fixation. Secondary outcomes learned in this experiment are that different light spectrums produce different results. Where red would produce more oxygenation that blue or green which produces little to no oxygen. In the Unique Experiment the working hypothesis stated that the red dye that simulates the red light spectrum will produce more photosynthesis than that of the blue, whereas green will produce very little if any. Limitations and error of this experiment will include the same listed above in the 1st experiment as well as how little or how much dye is used in the testing of the light spectrum. With greater time and multiple test of the same experiment averaged values could be derived from the test to give a more accurate result. Cited References John, D. (2016). BSC 2010L Laboratory Manual USF St. Petersburg (1st ed.). Boston MA: Pearson Custom Library. Freeman, S., Quillin, K., Allison, L., Black, M., Podgorski, G., Taylor, E., Carmichael, J. Biological science (6th ed.). Hoboken: Pearson Higher Education, [2017]. YAO, X. (2017). RESEARCH ARTICLE: Effects of light intensity on leaf microstructure and growth of rape seedlings cultivated under a combination of red and blue LEDs. Journal of Integrative Agriculture, 16(1), 97-105.