What Makes An Animal Endothermic

Endothermic animals are those that must generate their own heat to maintain an optimal  body temperature. In ordinary language, these animals are commonly referred to as warm-blooded. The term endotherm comes from the Greek  endon, meaning within, and thermos, which means heat. An animal that is endothermic is categorized as an endotherm, a  group that includes primarily birds and mammals. The other largest group of animals are ectotherms—the so-called cold-blooded animals with bodies that adapt to whatever temperature is present in their surroundings. This group is also very large, including fish, reptiles, amphibians, and invertebrates such as insects.   Seeking to Maintain an Ideal Temperature For endotherms, most of the heat they generate originates in the internal organs. For example, humans generate about two-thirds of their heat in the  thorax (the midsection) with about fifteen percent generated by the brain. Endotherms have a higher rate of metabolism than ectotherms, which requires that they consume more fats and sugars to create the heat they need to survive in cool temperatures. It also means that in cold temperatures they must find means of guarding against heat loss in those portion of their bodies that are primary heat sources. There is a reason why parents scold their children to bundle up with coats and hats in the winter.   All endotherms have an ideal body temperature at which they thrive, and they need to evolve or create various means of maintaining that body temperature. For human beings, the well-known room temperature range of 68 to 72 degrees Fahrenheit is optimal for allowing us to actively work and keep our internal body temperature at or near the normal 98.6 degrees. This slightly lower temperature allows us to work and play without exceeding our ideal body temperature. This  is the reason why very hot summer weather makes us sluggish—it is the bodys natural means of preventing us from overheating. Adaptations for Keeping Warm There are hundreds of adaptations that have evolved in endotherms to allow various species  to survive in a variety of climate conditions.  Most endotherms generally have evolved into creatures covered with some kind of hair or fur to protect against heat loss in cold weather. Or, in the case of humans, they have learned how to create clothing or burn fuels in order to stay warm in cold conditions.   Unique to endotherms is the ability to shiver when cold. This rapid and  rhythmic  contraction of skeletal muscles creates its own source of heat by the physics of  muscles burning energy. Some endotherms that live in cold climates, like polar bears, have developed a complex set of arteries and veins that are lie close to each other. This adaptation allows the warm blood flowing outward from the heart to preheat the colder blood flowing back toward the heart from the extremities. Deep-sea creatures have evolved thick layers of blubber to guard against heat loss.  Ã‚   Tiny birds can survive frigid conditions through the remarkable insulating properties of lightweight feathers and down, and by  specialized heat-exchange mechanisms in their bare legs.   Adaptations for Cooling the Body Most endothermic animals also have means of cooling themselves to keep their body temperatures at optimal levels in hot conditions. Some animals naturally shed much of their thick hair or fur during seasonal warm periods. Many creatures instinctively migrate to cooler regions in summer. In order to cool down when too warm, endotherms may  pant, causing the water to evaporate—resulting in a cooling effect through the thermal physics of water evaporating into vapor. This chemical process results in the release of stored heat energy. The same chemistry is at work when humans and other short-haired mammals sweat—this also cools us through the thermodynamics of evaporation. One theory is that the wings on birds originally developed as organs to dissipate excess heat for early species, which only gradually discovered the advantages of  flight made possible by these feathered fans.  Ã‚   Humans, of course, also have technological means of lowering temperatures to meet their endothermic needs. In fact, a large percentage of our technology over the centuries was developed out of the very basic needs of our endothermic natures.

The Science of How Slime Works

You know about slime. Youve either made it as a science project or blown the natural version out of your nose. Do you know what makes slime different from a regular liquid? Heres a look at the science of what slime is, how it forms, and its special properties. What Is Slime? Slime flows like a liquid, but unlike familiar liquids (e.g., oil, water), its ability to flow, or viscosity, is not constant. So its a fluid, but not a regular liquid. Scientists call a material that changes viscosity a non-Newtonian fluid. The technical explanation is that slime is a fluid that changes its ability to resist deformation according to shear or tensile stress. What this means is, when you pour slime or let it ooze through your fingers, it has a low viscosity and flows like a thick liquid. When you squeeze a non-Newtonian slime, like oobleck, or pound it with your fist, it feels hard, like a wet solid. This is because applying stress squeezes the particles in the slime together, making it hard for them to slide against each other. Most types of slime are also examples of polymers. Polymers are molecules made by linking together chains of subunits. Examples A natural form of slime is mucous, which consists mainly of water, the glycoprotein mucin, and salts. Water is the main ingredient in some types of human-made slime, too. The classic science project slime recipe mixes glue, borax, and water. Oobleck is a mixture of starch and water. Other types of slime are mainly oils rather than water. Examples include Silly Putty and electroactive slime. How It Works The specifics of how a type of slime works depends on its chemical composition, but the basic explanation is that chemicals are mixed to form polymers. The polymers act as a net, with molecules sliding against each other. For a specific example, consider the chemical reactions that produce classic glue-and-borax slime: Two solutions are combined to make classic slime. One is diluted school glue, or polyvinyl alcohol in water. The other solution is borax (Na2B4O7.10H2O) in water.Borax dissolves in water into sodium ions, Na, and tetraborate ions.The tetraborate ions react with water to produce the OH- ion and boric acid:B4O72-(aq) 7 H2O — 4 H3BO3(aq) 2 OH-(aq)Boric acid reacts with water to form borate ions:H3BO3(aq) 2 H2O — B(OH)4-(aq) H3O(aq)Hydrogen bonds form between the borate ion and the OH groups of the polyvinyl alcohol molecules from the glue, linking them together to form a new polymer: slime. The cross-linked polyvinyl alcohol traps a lot of water, so slime is wet. You can adjust the consistency of slime by controlling the ratio of glue to borax. If you have an excess of diluted glue compared with a borax solution, youll limit the number of cross-links that can form and get a more fluid slime. You can also adjust the recipe by limiting the amount of water that you use. For example, you could mix the borax solution directly with glue, producing a very stiff slime.

Why I am ready to be a Non Commissioned Officer Essay Free Essays

This impersonal definition defines in a few words what a NCO is ( Kautz. 2001 ) . To me this definition encompasses a whole batch more. We will write a custom essay sample on Why I am ready to be a Non Commissioned Officer? Essay or any similar topic only for you Order Now Ever since my childhood. I showed leading qualities. As a child. I was more interested in taking my friends in a football game. during some competition or any type of competition alternatively of the humdrum of my scientific discipline. geometry and English linguistic communication books. My parents despaired but I come from a household where every kid is encouraged to happen their ain personal niche and tantrum into society through it. After some clip. even though I was a better than mean pupil started to believe that I would make good in a occupation where I could learn others by illustration and use both my encephalon and muscle. I proudly admit that I am a nationalist. The sight of the Washington Memorial and the White House. both important landmarks of our state have ne’er failed to convey cryings to my eyes ( Winkler. 1998 ) . I believe my state was won after great adversities by our sires and it is our responsibility as its citizens to look after it. And I believe because of both my innate leading qualities and my love for my great states. I am ready to be a Non-commissioned officer. I to the full understand the responsibilities associated with going a NONCOM as it is known in some circles. Non commissioned officers are frequently referred to as the anchor of the armed services and I understand the of import deduction of this definition ( Fisher. 2007 ) . I would hold to be the primary leader for the majority of the enlisted corps. This would intend full duty or what I consider waxy heads ( Salinas. 2008 ) . I pray I can learn them non merely by words but by my illustration. I would hold to be really careful with my each and every measure cognizing that any incorrect measure of mine can non take down my image in the heads of my juniors but besides put my country’s name to dishonor which is something. I being so loyal. may ne’er be able to populate with. I would besides be responsible for put to deathing military missions and developing military forces in order to fix them to put to death their missions. This to me seems an even bigger duty in visible radiation of the recent universe events and the menace to universe peace which many peaceable states face from a minority of extremists. I would hold to be argus-eyed in my responsibilities and seek to fix the male childs for what I know to be tough conditions for them the likes of which most of them can ne’er even conceive of. I will seek to transfuse in their heads that it is non a mere kid of an enemy that we face but a deadly enemy and it is our and or responsibility merely to protect the citizens of our state for them. I besides understand how delicate military missions can be and I will seek through my experience and surveies to do certain that non even one error takes topographic point or at least a error which can set the mission to hazard. I understand that I am besides to be a nexus between the majority of the enlisted forces and the officers in any military organisation. Messenger or concatenation functions as they seem to me are peculiarly really delicate because both of the parties can all of a sudden be at odds with each other over fiddling or apparently everyday issues. I will seek my best to transfuse in the military forces a sense of regard for their higher-ups and for the higher-ups to really care about the well being of their juniors. I have ever believed that the ground forces hierarchy has a certain beauty to it. Where else would we see an ordinary adult male move through different ranks such as Corporal. Sergeant. Staff-Sergeant. Sergeant First Class. Master Sergeant. First Sergeant. Sergeant Major. Command Sergeant Major and Sergeant Major of the Army. To most people. these stations may look really confounding but to me this represents a calling way ( Thompson. 2006 ) . To be an officer of any organisation. non merely the ground forces requires mammoth dedication. unexcelled accomplishments. good instruction and a crisp head. I believe I have all these regardless of my immature age and I am ready to turn out this to the universe. Mentions Kautz. A. ( 2001 ) . Service for Non-Commissioned Officers. Fisher. JR. ( 2007 ) . Guardians of the Republic. Thompson. ( 2006 ) . How Long Is the Night. Salinas. J. ( 2008 ) . All were Valiant Winkler. ( 1998 ) . Future Leader Development of Army Noncommissioned Officers How to cite Why I am ready to be a Non Commissioned Officer? Essay, Essay examples

The Role of Manager in Organizational Success @Tesco Free Solution

Question - Describe and Evaluate the role of a Manager in an organisation (Tesco PLC)? Answer - Introduction Manager plays a critical role in achieving organizational success. The major challenge of a manager is to provide creative solutions to the organizational issues for ensuring uninterrupted growth. This paper will focus on discussing various management theories and applying it to the real business organizations (Beardwell and Thompson, 2014). In this paper, the management of Tesco will be studied in order to analyze the roles of the manager in an organization. Background of the Organization Presently Tesco has been serving more than millions of customers per week through physical stores and online store. In 1997, Tesco had started its operations in Ireland by acquiring the retail operation of Associated British Food in Ireland. Tesco has been encountering significant growth in Ireland and it has become the leading grocery retailer in Ireland. Presently it has more than 146 stores in Ireland. Tesco Ireland has been significantly focusing on the commitment of purchasing the local for supporting the local suppliers of Ireland. It has been found that more than 11,000 local farms of Ireland are engaged in supplying its products to Tesco. Moreover, the non-organic and fresh milk sold in Tesco is supplied by the farms in Ireland. Fresh pork, lamb and beef re supplied by the Irish farmers in Tesco. Tesco has been significantly encouraging the small community farmers with the aid of Local Supplier Program. This program has been found to be helpful as it permits the local supplie rs for providing high quality products to the nearest Tesco outlets (Tesco plc, 2015). Aims and Objectives of the Assignment The major aims and objectives of the assignment are listed below: Analyzing the roles of manager in organization To discuss the relevant management theories by undertaking literature review Application of the theories in practical context for assessing its relevance Undertaking primary research for analyzing the role of manager in a particular organization Scope of the Study The scope of the study is limited to the four managerial functions in Tesco. It has been observed that the time is a major constraint for undertaking this assignment. Additionally, access to the information of Tesco is restricted. Methodology In this paper, research method has focused on collection of two types of data: primary and secondary. Secondary data are collected from books, journals and authentic websites for analyzing the existing theories and past researches. Primary research has been conducted for analyzing the validity of the management theories in real life. The managers of Tesco have been interviewed and for privacy purpose the names will not be disclosed in this paper. Research Findings Secondary Research The major responsibility of the manager is to think strategically and deliver creative solutions to the organizational problems in order to ensure successful achievement of the organizational vision and goals. The classical as well as modern theories of the management have segments the responsibilities of the manager in four major categories: planning, organizing, leading and controlling. The four functions of the managers are integrated for undertaking the organizational activities. This section will focus on delivering an overview of these four functions on the basis of the past researches, existing theories and management approaches. Planning Planning is consisted of setting different objectives and goals of the organization along with activities which will help in meeting those. The major responsibility of the manager is to consider the external as well as internal conditions for making effective decision and planning. Planning engages various steps such as analysis of the environment which helps in the identification of the critical and potential contingencies which can be encountered by the company in terms of its competitors and economic conditions (Beardwell and Thompson, 2014). Hence, the major activities of planning includes decision making regarding setting goals, forecasting, scheduling, resourcing, setting standards and developing the procedure for monitoring (Pinnington, Macklin and Campbell, 2007). Research scholars have identified three types of planning such as strategic planning, tactical planning and operational planning. Strategic Planning: Strategic planning is associated with the analysis of the threats as well as opportunities in the competitive environment along with the internal strength and weakness of the organization. Strategic planning is formulated for determining the long term activities of the company. The strategic planning of an organization is extensively reliant upon the vision and mission of the organization (McLoughlin and Aaker, 2010). Tactical Planning: Tactical planning is conducted for short term or less than three years. It has been designed for implementation of the strategic plan. Operational Planning: Operational planning of an organization is developed for determining the set of activities of the sub units of the organization in order to achieve the organizational goals. Operational plans are developed for short term which supports the tactical and the strategic plan (Morden, 2007). Organizing Organizing is considered to be one of the most important functions of management which is engaged in the development of the organizational structure that allows allocation of the human resource in order to accomplish the objectives. The structure of the company is a framework and the employees co-ordinate their effort within it. Organizational chart helps in representing the chain of command within the organization. Organizing function is also associated with designing the individual job responsibilities and makes decision regarding duties and targets. Initially the job designing function of the manager was based on the principles of the division of labor as well as specialization (Collings and Wood, 2009). Presently, various organizations have been attempting to establish equilibrium between the requirement for the specialization of the workers and the requirement for workers to have jobs which will entail autonomy as well as variety. Presently managers are focusing on the principle s of team work, job enrichment and empowerment. Organizing engages in determining how to departmentalize or cluster jobs into the departments for co-coordinating the effort effectively. There are various ways for departmentalizing which includes organizing in terms of product, functions, geography etc. Leading Leading is associated with the social as well as informal sources which will helps in influencing the activities of others. Research studies have indicated that the subordinates of the effective leaders will be highly motivated for exerting effort in order to achieve organizational goals. Behavioral scientists have significantly contributed in order to understand the major leading functions of management. Studies regarding personality as well as attitude towards job have provided significant information regarding functions of management. It has been found that understanding the personalities, attitudes values and emotions are important for becoming an effective leader (Kramar and Syed, 2012). Various motivation theories have provided significant information regarding the mechanisms which helps in energizing the workers and enhance productively. Contingency theory is associated with the selection of the appropriate style of leadership at different stages of maturity or the ability along with the willingness of the staffs. Controlling Controlling is associated with ensuring that the organizational performance aligns with the standard. Controlling functions start with establishment of the standard for performance. Therefore, comparison of the actual performance against standard will be undertaken (Katsioloudes and Katsioloudes, 2006). The next step will be associated with taking corrective measures according to the requirement. The standard of performance is expressed in various terms such as cost, revenue, bottom line, number of defective product, quality of customer service etc. Effective organizational control requires the necessity of a plan (Salaman, 2001). It has been observed that planning helps in providing efficient tools for setting standards. Additionally, the management needs a lucid idea regarding the responsibility for deviation from the pre-defined standards. Performance and budget audit are two popular and effective controlling mechanisms. The production and other operational activities of the organ ization are also controlled in order to ensure that those comply with the organizational policies. Primary Research Primary research was conducted for analyzing as well as evaluating the role of manager or the major four functions of the management in Tesco Plc in Ireland. In order to collect primary data, an appointment was fixed with an employee from the top management level and employee from mid-management level. The findings of the primary research have indicated that the major four functions discussed in the secondary research section are performed efficiently by the management of Tesco which has been helping the organization in the achievement of sustainable growth (Salaman, 2001). Planning: It has been found each activity of Tesco is pre-planned. For example, the top level manager of Tesco has stated that the management engages in the planning activity before designing as well as launching a new product in the market. It has been found that the top level management of Tesco is engaged in development of strategic plan. On the other hand, tactical planning and operational planning are undertaken by the mid level management and the departmental mangers respectively (Katsioloudes and Katsioloudes, 2006). Organizing: In Tesco, organizing has been found to be one of the most important functions of Tesco. In Tesco, organizing function is associated with the management of raw materials, human resource as well as fund. Human resource management of Tesco has been significantly focusing on promotion of fair practice so that the staff retention is high. The job description and targets are clearly communicated to the staffs so that the strategic plan can be implemented effectively in order to achieve the desired state (McLoughlin and Aaker, 2010). Leading: Leadership is the major factor for ensuring success of the organization. It has been observed that the effective leadership style has heed in motivating the large workforce and it has made the major contribution in the success story of the Tesco. According to the managers, the leaders have adopted a participative and democratic style of leadership. It focuses on inclusion of the all concerned people in the decision making process. However, it has been also stated that the organization has been focusing on the contingency theory and various managers are adopting the situational leadership styles which has helped in responding to the dynamic business environment (Shekhar Singh, 2012). Leaders in Tesco have introduced several financial as well as non-financial motivations for retaining the talent (Pinnington, Macklin and Campbell, 2007). Controlling: A sound controlling mechanism is needed for the achievement of organizational goals. The interview session with the managers of Tesco has helped in understanding that Tesco has been able to successfully establish a controlling system which has set the standard of organizational performance (Kramar and Syed, 2012). It has set a bench mark for its employees in terms of performance (Holden and Beardwell, 2001). The organizational activities are monitored by the management of Tesco in order to ensure the activities comply with the organizational policies (Katsioloudes and Katsioloudes, 2006). Data Analysis Analyzing the primary and secondary data, an insight regarding the major functions of the managers has been obtained. It has been found that Tesco has been effectively managing the functions of management in order to achieve the objectives of the organization. From the collected data, it can be implied that the Tesco is engaged into serious planning activities for managing the activities of the company. In each and every step, plan along with contingency plan are developed in order to direct the organization into the right pathway. Strategic planning is undertaken by the top management level in Tesco. Both the human resource and raw materials are effectively managed by the managers at Tesco (Beardwell and Thompson, 2014). The organizational structure has focused on effective communication so that the job roles and responsibilities are clearly conveyed to the staffs. Participative and democratic leadership styles are the two major factors which have leaded to organizational growth. Additionally, Tesco has focused on the contingency theory or situational leadership for responding to the dynamic environment. In order to control the organizational activities, Tesco has focused on setting standards for performance (Collings and Wood, 2009). Mor eover, it has established a controlling mechanism for ensuring all the activities are undertaken by complying with the organizational policy (Holden and Beardwell, 2001). Conclusion This paper has demonstrated that the major activities of a manger is planning, organizing, leading and controlling. It has been found that these functions proposed by the social scientists are right in the present business context. Tesco has been focusing in these four activities in order to achieve the organizational goals. References Beardwell, J. and Thompson, A. (2014).Human resource management. Harlow: Pearson Education Limited. Collings, D. and Wood, G. (2009).Human resource management. London: Routledge. Holden, L. and Beardwell, I. (2001).Human resource management. Harlow: Financial Times Prentice Hall. Katsioloudes, M. and Katsioloudes, M. (2006).Strategic management. Burlington, MA: Elsevier Butterworth-Heinemann. Kramar, R. and Syed, J. (2012).Human resource management in a global context. Houndmills, Basingstoke, Hampshire: Palgrave Macmillan. McLoughlin, D. and Aaker, D. (2010).Strategic market management. Hoboken, N.J.: Wiley. Morden, T. (2007).Principles of strategic management. Aldershot, England: Ashgate. Pinnington, A., Macklin, R. and Campbell, T. (2007).Human resource management. Oxford: Oxford University Press. Salaman, G. (2001).Understanding business. London: Routledge in association with the Open University. Shekhar Singh, A. (2012). Retailing in 21st Century: Current and Future Trends.Jnl of Product Brand Mgt, 21(3), pp.226-227. Tesco plc, (2015).Tesco plc.