Olfactory System - Sense of Smell

Olfactory System - Sense of Smell The olfactory system is responsible for our sense of smell. This sense, also known as olfaction, is one of our five main senses and involves the detection and identification of molecules in the air. Once detected by sensory organs, nerve signals are sent to the brain where the signals are processed. Our sense of smell is closely linked our sense of taste as both rely on the perception of molecules. It is our sense of smell that allows us to detect the flavors in the foods we eat. Olfaction is one of our most powerful senses. Our sense of smell can ignite memories as well as influence our mood and behavior. Olfactory System Structures   Patrick J. Lynch, medical illustrator / Creative Commons / Wikimedia Commons Our sense of smell is a complex process that depends on sensory organs, nerves, and the brain. Structures of the olfactory system include: Nose - opening containing nasal passages that allows outside air to flow into the nasal cavity. Also a component of the respiratory system, it humidifies, filters, and warms the air inside the nose.Nasal cavity - cavity divided by the nasal septum into left and right passages. It is lined with mucosa.Olfactory epithelium - specialized type of epithelial tissue in nasal cavities that contains olfactory nerve cells and receptor nerve cells. These cells send impulses to the olfactory bulb.Cribriform plate - a porous extension of the ethmoid bone, which separates the nasal cavity from the brain. Olfactory nerve fibers extend through the holes in the cribriform to reach the olfactory bulbs.Olfactory nerve - nerve (first cranial nerve) involved in olfaction. Olfactory nerve fibers extend from the mucous membrane, through the cribriform plate, to the olfactory bulbs.Olfactory bulbs - bulb-shaped structures in the forebrain where olfactory nerves end and the olfactory tract begins.Olfactory tract - band of nerve fibers that extend from each olfactory bulb to the olfactory cortex of the brain. Olfactory cortex - area of the cerebral cortex that processes information about odors and receives nerve signals from the olfactory bulbs. Our Sense of Smell Our sense of smell works by the detection of odors. Olfactory epithelium located in the nose contains millions of chemical receptors that detect odors. When we sniff, chemicals in the air are dissolved in mucus. Odor receptor neurons in olfactory epithelium detect these odors and send the signals on to the olfactory bulbs. These signals are then sent along olfactory tracts to the olfactory cortex of the brain. The olfactory cortex is vital for the processing and perception of odor. It is located in the temporal lobe of the brain, which is involved in organizing sensory input. The olfactory cortex is also a component of the limbic system. This system is involved in the processing of our emotions, survival instincts, and memory formation. The olfactory cortex has connections with other limbic system structures such as the amygdala, hippocampus, and hypothalamus. The amygdala is involved in forming emotional responses (particularly fear responses) and memories, the hippocampus indexes and stores memories, and the hypothalamus regulates emotional responses. It is the limbic system that connects senses, such as odors, to our memories and emotions. Sense of Smell and Emotions The connection between our sense of smell and emotions is unlike that of the other senses because olfactory system nerves connect directly to brain structures of the limbic system. Odors can trigger both positive and negative emotions as aromas are associated with specific memories. Additionally, studies have demonstrated that the emotional expressions of others can influence our olfactory sense. This is due to activity of an area of the brain known as the piriform cortex which is activated prior to odor sensation. The piriform cortex processes visual information and creates an expectation that a particular fragrance will smell pleasant or unpleasant. Therefore, when we see a person with a disgusted facial expression before sensing an odor, there is an expectation that the odor is unpleasant. This expectation influences how we perceive the odor. Odor Pathways Odors are detected through two pathways. The first is the orthonasal pathway which involves odors that are sniffed in through the nose. The second is the retronasal pathway which is a pathway that connects the top of the throat to the nasal cavity. In the orthonasal pathway, odors that enter the nasal passages and are detected by chemical receptors in the nose. The retronasal pathway involves aromas that are contained within the foods we eat. As we chew food, odors are released that travel through the retronasal pathway connecting the throat to the nasal cavity. Once in the nasal cavity, these chemicals are detected by olfactory receptor cells in the nose. Should the retronasal pathway become blocked, the aromas in foods we eat can not reach odor detecting cells in the nose. As such, the flavors in the food can not be detected. This often happens when a person has a cold or sinus infection. Smell Disorders Individuals with smell disorders have difficulty detecting or perceiving odors. These difficulties may result from factors such as smoking, aging, upper respiratory infection, head injury, and exposure to chemicals or radiation. Anosmia is a condition defined by the inability to detect odors. Other types of smell defects include parosmia (a distorted perception of odors) and phantosmia (odors are hallucinated). Hyposmia, the diminished sense of smell, is also linked to the development of neurodegenerative diseases such as Parkinsons and Alzheimers disease. Sources: Merkelt, Judith. How the Emotions of Others Influence Our Olfactory Sense. Neuroscience News, 24 Aug. 2017, neurosciencenews.com/olfaction-emotion-7368/. Sarafoleanu, C, et al. The Importance of the Olfactory Sense in the Human Behavior and Evolution. J Med Life, U.S. National Library of Medicine, 15 Apr. 2009, www.ncbi.nlm.nih.gov/pmc/articles/PMC3018978/. Smell Disorders. National Institute of Deafness and Other Communication Disorders, U.S. Department of Health and Human Services, 16 Jan. 2018, www.nidcd.nih.gov/health/smell-disorders.

The Antitrust Battle Ahead Essay Example | Topics and Well Written Essays - 500 words

The Antitrust Battle Ahead - Essay Example It may so happen that the merged organizations gains at the expense of the consumer. This is where the government chips in, through its antitrust regulations. The government reserves the right, and rightly so, to intervene and block any merger deal which it feels would reduce competition in the industry and thereby adversely affect the consumers, either by way of high prices or by way of low quality. In some cases, these mergers may lead to less innovation thus indirectly putting consumers at a loss. Section 7 of the Clayton Act disallows mergers and acquisitions when such transactions may significantly lower competition, or may create a monopoly, or may lead to formation of cartels (Federal Trade Commission 2011). Simply put, the purpose of antitrust legislations is to enforce laws that promote competitive markets. These laws thus ensure efficient allocation of resources in a free market and prevent market failures. The focal point of antitrust economics is competition (Scheffman 2002). It is competition that is at the heart of many important business decisions and to a large extent determines the firms pricing strategies and tactics. The Federal Trade Commission’s Bureau of Competition, along with the Bureau of Economics is entrusted with the enforcement of such antitrust laws in the United States. The FTC and Department of Justice review scores of merger filings every year of which 95 percent have no competitive issues (Federal Trade Commission 2011). The first category consists of merger proposals wherein the competitive concerns can be resolved by mutual consent of the parties concerned. The revised merger proposal, so arrived after negotiations, retains the beneficial aspects of the deal and discards the threat. The federal regulators negotiated a settlement in the proposed merger deal of Comcast and NBC Universal. As a part of the revised deal, Comcast agreed to give up

European union law Essay Example | Topics and Well Written Essays - 2500 words

European union law - Essay Example Initially, EU member states concentrate upon the discrimination on the basis of two respects as described by the EU law. Firstly, the economic objectives of EU commission is to create a common employment market with the help of equal treatment of the workers which are required to prohibit discrimination on the basis of nationality under the Article 45 Treaty on the Functioning of the European Union (TFEU). Secondly, the workers who belong from an EU nation should not be treated differently in the job market of any other EU nations on the basis of gender differences restricting discrimination practice based on sex1. Taking into consideration the ethical practices and the requirement of equal treatment of employees, the general guidelines of non-discrimination was implemented through the EU legislative emphasising on gender discrimination concerning the equal pay policies for both men and women under the Article 157 of the TFEU which was formerly attributed as Article 119 of the Europe an Commission (EC). The ‘pay gap’ between both the genders is regarded as applicable in every member state of EU according to the EU law. On the basis of the implications of ‘pay gap’, the EU legislation promotes equal pay in order to evaluate the gap between the income levels of both the genders whose pay structure is quite higher. Contextually, the employment segmentation on the basis of gender implies that in many employment workplaces, the male employees predominantly occupied the labour market within the EU member states. In the context of equal pay, the aforementioned aspect was applicable when the discrimination principle of the EU law was further extended to facilitate the equal pay of workers. Moreover, on the basis of the case law of European Court of Justice (ECJ), it can be affirmed that the general guidelines regarding the equal payment for both female as well as male employees rendered due consideration towards social objectives of growth and overall development. Discrimination of gender within the employment takes place when an employee obtains special treatments on the basis of various arbitrary criteria such as gender, religion, age, parental status, socio-economic background, race and political opinion. It is worth mentioning in this context that the notion, ‘discrimination’, was initiated within EU discourse in the form of restriction under the Article 18 TFEU. As per the EU commission, ‘Council Directive 75/117/EEC’ implemented policies obstructing gender discrimination affirming that there should be the equal pay for both men and women. Furthermore, Council Directive 76/207/EEC also executed certain guidelines regarding equal treatment for both the genders on the basis of extra pay, promotion, training and working situations2. In present business context, it has been observed that most of the working women in EU member states have to face ‘deep-rooted’ injustice within their workplace, compromising with lesser payment compared to their male colleagues irrespective of their similar job responsibilities. Hence, equal treatment among the men and women workers have emerged as one of the significant aspects within the EU member states. It is in this context t

Data Sharing between Airlines and International Airlines for Case Study

Data Sharing between Airlines and International Airlines for Scheduling Purposes - Case Study Example s like distance, choice of aircraft, operating speed, night curfews, taxi-times and prevailing winds are considered during allocation of schedule times. From the above explanations, it can be concluded that data sharing is of high significance in the planning for delays. Since factors that affect arrival time are taken into consideration, it results in the development of a realistic schedule and the final effect of this is on-time performance. The main limitation to achieving effectives from data sharing is that in many cases, flights leaving at their designated times arrive after the scheduled arrival time and this has the potential of creating reactionary delays. A limitation imposed on data sharing is on the period of time that airlines can store this data (Strauss, 2010). Passenger name record (PNR) and the codeshare agreement Apart from sharing data for purposes of scheduling, airlines can also share passenger informationlikepassenger name record (PNR). In the past, terrorists h ave used airplanes as weapons against target places or nations. It has also threatened the prosperity of this important business. The main importance of sharing PNRis the deterrence of terrorist travel because it keeps known terrorists of airplanes. However, this can intrude into the privacy of the passengers due to the exchange sensitive information and could also result in the discriminate use of the data. The limitation of this is the inability to deter unpopular or unknown terrorists. The data can only be held for 30 days (The House Committee on Homeland Security, 2011). Codeshare agreement is another important element of cooperation between airlines. Under codeshare, two airlines share the same flight. For example, a seat can be purchased on one airline but a cooperating airline... This essay stresses that the strengths of American Airlines include the size of the fleet, the number of routes, partnerships, the IT infrastructure, and government relations. These strengths can be harnessed and data sharing between the airline and the other airlines made efficient and effective. An important strength in this case is the IT infrastructure. The company can venture into strengthening and innovation of an IT infrastructure that can assist effective and efficient data sharing between the airline and international airline for the scheduling purposes. Partnership can also assist the airline and international airlines to share data effectively. Partnerships will make it easy for the airline companies to share data effectively and make the scheduling of flights easier. This paper makes a conclusion that American Airlines should engage in data sharing for the purposes of scheduling flights. The company has many unprofitable routes and data sharing will assist the company is reducing these unprofitable routes. Partnership with the Asian Airlines is a great opportunity for the company to schedule its flights internationally and in particular within the Asian region. The partnership will offer a great chance for data sharing. From the SWOT analysis of American Airlines, it is evident there are many chances for data sharing between the airline and international airlines; data sharing will assist American Airlines to schedule flights and avoid any inconveniences that may arise due to partial or full absence of data sharing.

Twelfth Night Essay Example | Topics and Well Written Essays - 1500 words

Twelfth Night - Essay Example Thesis statement: The analysis based on the two versions of the play Twelfth Night (the play Twelfth Night by William Shakespeare and the movie She’s the Man by Andy Fickman) proves that Shakespeare’s play revolves around the central character named as Viola, but Fickman provides ample importance to the play’s theme and presents the same in a different way. Analysis This section is broadly divided into four, namely: setting, character, theme, and literary/dramatic trope/irony. Setting In the play, Shakespeare makes use of the romantic atmosphere of Illyria to unveil the mistaken identity of the heroine/hero. Besides, the playwright utilizes the atmosphere of real Illyria to stimulate the imagination of the audience. During Shakespeare’s time, less was known about Illyria because the same was a distant area from England. Robert Owen Scott states that, â€Å"Shakespeare’s Illyria is a fairy-tale land populated with dukes, ladies, knights, and jesters † (21). To be specific, the playwright introduces an imaginary setting to the Elizabethan audience. This initiative is important because the aspiration to know more about distant lands was an important characteristic of the audience during Shakespeare’s time. One can see that Shakespeare was aware of the fact that less knowledge about a place can stimulate imagination. So, the land of Illyria is symbolic of the playwright’s attempt to entertain the viewers. Besides, romance is interconnected with imagination and an imaginary atmosphere is suitable to tell a romantic tale. Frederic Kolman states that, â€Å"This is a play about love, placed in a festive atmosphere in which three couples are brought together happily† (18). Shakespeare aims to provide a pleasant mood to the play because the same suits the romantic setting of the same. On the other side, Shakespeare makes use of the story of shipwreck to connect the twins (say, Viola and Sebastian) with the dr amatic atmosphere of Illyria. This is important because shipwreck can happen anywhere and there is high possibility for anyone to be entrapped in a distant land. So Shakespeare amalgamated imagination and reality by choosing a dramatic atmosphere as the setting of his play, i.e. Illyria. On the other side, the movie based on the play provides less importance to an imaginative land because director does not try to choose a distant land as the setting. One can easily identify the fact that choosing a distant land can reduce the scope of box-office success of a film because distance is not considered as important in the modern world. So, the director amalgamated the setting into the film’s plot, i.e. the rivalry between Cornwall School and Illyria School. In addition, rivalry related to sports is an important element of the setting and plot in the film. Still, the director exploits the scope of the setting because victory in soccer match is important for the players and those wh o support them. To be specific, the dramatic atmosphere of the setting in the play is not utilized in the film. Instead, the director makes use of the setting as a background to support the development of the film’s plot. Character In the play, Shakespeare makes use of the character Viola as the backbone of the plot. For instance, the whole play develops through the development of the character Viola from a castaway to the duchess of Illyria. Peter Grube makes clear that, â€Å"The social reality of the Elizabethan Age was obviously marked

Digital forensic incident response Research Paper

Digital forensic incident response - Research Paper Example Digital forensic investigation is important for productive prosecution of the criminals who engage in digital crimes. It is also useful in recovery of misappropriated resources such as finances, important information and others. The investigators should therefore make sure that they obtain quality forensic evidence which the courts of law require in administering justice. As put forth by Selamat et.al (2008), digital forensic investigation is distinct from digital investigation in that the techniques and procedures that the investigator will use allow the output to be applied in a court of law. In this regard, the researcher ought to consider significant steps to carry out a successful forensic investigation. Our evidence is well hidden in images, codes, encrypted files, missing folders and files among others that need to be cracked so as to reveal the misappropriation. The investigator will collect information on: system sabotage; information related on attacks; hijacks on email; sensitive information; selective information on organized and unorganized crimes; cracking and hacking and other important information (International Journal of Advance Research, 2013). The fact that American Marketing Systems hav e suspected that there is something odd happening in the company provides the platform for investigation to verify the basis of these allegations, establish the culprits and reveal the procedures they are using to skim. In this paper, the investigator presents an extensive report of the existence of the skimming, the culprits and the procedure they use. The investigator will perform information analysis, network intrusion, examine malicious file. He will also use tools which have the ability to crack encrypted files and passwords. Most of forensic audit failure is as a result of lack of proper prior planning. Bearing this in mind, the investigator will spend quality time in planning on the devices which

IMC and Customer Satisfaction Research Paper Example | Topics and Well Written Essays - 1000 words

IMC and Customer Satisfaction - Research Paper Example Advertisement strategy of Holden Trucking and its alignment with marketing goals Holden Trucking is an American organization, which deals in several business dimensions. These business dimensions generally comprise transformation of building materials, motor vehicles, construction carrier and farm supplies among others. Being a medium-sized American company, it is observed as operating its aforementioned businesses under the United States Department of Transportation (USDOT). When considering its IMC strategies, the organization can be observed as utilizing various advertising tools in order to advertise its products and/or services offered to the customers worldwide. In relation to the advertising strategy of Holden Trucking, these aspects fundamentally comprise official website promotion, seasonal printing advertisements and billboards. Execution of the aforesaid advertising strategies in the form of various advertisement tools further tends to be aligned with its marketing goals i n terms of promoting its products and/or services to around 48 states of the US and Africa (FindThe Best.com, Inc., 2013). Effectiveness of the advertising strategy of Holden Trucking The effectiveness of the advertising strategy, as implemented by Holden Trucking, can be determined in terms of identifying the sales of one of its products i.e. barley in its network joining 48 states in the US along with Africa and the subsequent satisfaction level observed among the consumers residing in those particular regions. It is worth mentioning that proper management and effective exploitation of advertising strategies can facilitate an organization towards marketing its various products and/or services, subsequently attracting the customers towards buying a product. In relation to Holden Trucking, the marketing tools that are utilized by the organization such as billboards, websites and seasonal printing advertisements would eventually impose a favorable impact upon the perceptions of the c ustomers residing throughout its business network. The IMC strategies performed by Holden Trucking will become much effective at the time when the people in all the 48 states and Africa generating greater awareness about the brand and its products and/or services offered. Moreover, selling of the product will also contribute in making the advertising strategy of Holden Trucking much effective. Different promotional strategies that may be used in addition to advertising Apart from the above mentioned IMC strategies aimed to promote the products and/or services offered by Holden Trucking throughout its network comprising all the 48 states and Africa, there are also certain other various promotional strategies that might be used by the organization in order to attract more customers and gain long-run efficiency in its targeted marketing area. In this similar concern, Holden Trucking might use diverse promotional strategies of personal selling, product giveaways and social media among o thers. Theoretically, the promotional strategy of personal selling denotes advancing the interrelation with the customers. In the similar context, product giveaways signify facilitating the potential customers with a product sample, resulting in promoting a new product. The other promotional strategies of social media represents promoting products and/or services in a relaxed business setting through the incorporation of various social media websites such as Google