Saturday, February 15, 2020

Modernity Essay Example | Topics and Well Written Essays - 250 words - 1

Modernity - Essay Example These aspects are either descriptive or analytical based on social, political, or economic aspects that characterize modernity. A political approach of defining modernity is quite analytical. It states that the earliest stages of modernity began with the Niccolo Machiavelli’s works, which seemed to favor the free republics over monarchies. The modernization initiated at this time continues to grow with liberalism and democracy being quite characteristic in today’s political view. On the other hand, the changes in the social discourse, processes, and conditions take a descriptive approach. In this case, modernity is described in accordance to the descriptions of people’s social aspects. The philosophical view also takes the same descriptive dimension as the social approach. In this regard, it is described as the period where the realization that it is impossible to achieve certainty came up. On the same frequency, modernity achieves a descriptive approach as the a ge in which ideologies were developed. The descriptive aspect of modernity supersedes the analytical. This is because across generations what predominates is the evidence of what has taken place. Therefore, when this is described, it supports the evidence of the transition that is characterized by

Sunday, February 2, 2020

Business Environment Analysis of British Airways Essay - 1

Business Environment Analysis of British Airways - Essay Example The assessment of the external environment is conducted in reference to its impact on British Airways. For the purpose, the range of strategic management tools has been employed. British Airways (BA) is a private limited company is renowned airline that has recently celebrated 90 years of existence in the year 2009. It is one the leading premium airlines of the world and the largest airline of UK and covers around 400 destinations across the world (British Airways, 2013). The business model of BA is based on the revenue generation from the passenger as well as cargo delivery services. With the long rich history and experience, BA has become one of the leading airlines that have extensive scheduled flights and network of airline. Additionally, it is a comprehensive list of joint agreements, franchise partners and other defined codes that enables it to service wide network of stations (airports). Importantly, in the year 2010, BA merged into Iberia which is the largest airline of Spain (British Airways, n.d.). British Airways generate its revenue from the two basic sources including passenger revenue and the cargo revenue. For the year 2013, BA generated revenue of around  £ 10,129 million from the passenger revenue with the growth of 6.6% while the cargo revenue declined by 6.5% and generated  £ 689 million in 2013 as compared to 2012. The year 2013 was driven by considerable investment in the airline with constant focus on expanding customer base along with the cost reduction measure at effect (British Airways, 2013). This section of the report will produce the information related to the British Airways. The information will be specific to the business direction and future vision of the business along with impact of the external environment on BA and its response. The mission of British Airways, as reported in the marketing in magazine, is â€Å"to serve† (Eleftheriou-Smith, 2011).

Saturday, January 25, 2020

Developing Wireless Communications to Space Essay example -- Science O

A big potential problem in the future is developing a wireless communications network in outer space. In this paper we will discuss the problems presented with this and the potential solutions to these problems using existing and some futuristic technology. We have broke this into two main parts, one being earth to satellite to planet and back, and the other being planetary ground transmission to and from astronauts to rovers to space stations. The solution has already started being implemented and will continue rapidly into the near future. It is called the Interplanetary Internet. As of now it is an array of floating 'nodes' or satellites scattered around in space that can communicate with each other. In the future a backbone of satellites is envisioned with their own high speed protocols. There will also be large antennas on earth and possible other planets hundreds of feet high, amplifiers scattered throughout space, photovoltaic powered satellites, and high precision equipment on multiple planet surfaces. The architectural concept to this is deceivingly simple. The first part is developing Internet protocols to form local networks in quiet environments with little delay. This could be done with free flying spacecraft here on earth or another planet. The second part is to develop a deep space structure of satellites interconnecting LANs. This includes multiple space based data relay satellites. The third part is implementing a new overlay a new protocol concept called bundling to tie together the Internets. This is based on a routing concept in which multiple messages will be bundled and sent through a series of Internets. The problem with this is not the same as here on earth. Here it is billi... ...face devices completed the elements of the hardware setup. (NASA Takes..) In conclusion the improvements to the current inter-planet system of communication involves increasing the number of nodes in space, development of peer to peer hardware nodes and improvement of protocols to deal with long delays and interference. Works Cited NASA Takes the Internet into Space. 13 Dec 2003. TechNewsWorld. 10 April 2007. . Mars Wants Wi-Fi!. 15 Jan 2004. Wi-Fi Planet. 10 April 2007. . NASA tests WiFi mesh networks. 22 March 2004. GCN. 10 April 2007. . NMSU researchers helping NASA develop systems to transmit data from Mars. 14 Oct 2004. SpaceRef. 10 April 2007. .

Friday, January 17, 2020

Obesity and cancer – Linked to what level

Or possibly make for a worse cancer prognosis? These issues are addressed in this report, with references to many studies performer d at the population level, and at the molecular level – attempting to link cancer progression (prostrate cancer), severity and occurrence, wit h symptoms of obesity – such as visceral fat, deadlocked levels, etc.Focusing primarily on the dopamine levels in obese (cancer/non cancer) patients, in vitro tumor culture studies and data from prostrate/ breast cancer patients – this report aims to hint at a possible mechanism which underlies cancer progression on the basis of the data from above studies and explain how obese TTY as a condition, fits In the mechanism of tumor progression. Introduction to obesity – The first aspect regarding obesity is the quantification of the physical condition called ‘obese'.For the purpose of this report (and for most of the studies referred to) – computer tomography generated measurem ents in the order of ?comma area in the central abdominal regions (I. E. – of visceral fat), Is defined as the condition for obesity. Alternatively, other quantifications, such as waste- Hip ratios, Body Mass Index, etc are also used to define or relate specific aspects of body structure to the condition of being obese or its relate deed metabolic syndromes. 9] Central (visceral) obesity is characterized by metabolic syndromes such as – insulin resistance, hyperglycemia, hyperventilates, displacement, hypertension, and problematic and protoplasm Tory states [81. All of which are fairly conditions that cause many complications in contemporaries occurring dies asses – however the focus of this report details the direct implications of obesity, and the molecules involved – followed by a generalization from this case-study on hormonal cancers. The molecular symptoms and effects of obesity on a patient's physiological system ar Fig. – Diagrammatic repre sentation of some of the possible mechanisms for obesity- related prostate cancer progression. GIF-I = insulin-like growth factor 1; IL- 6 = interleukin 6; VEGA = vascular endothelial growth factor; GHB = sex- hormone binding globulin. [8] Molecular characteristics of obesity – The following are characteristics/by- products of obesity and their respective roles identified in various hormonal (prostrate/breast) cancer studies – Hypersensitiveness – Geiger serum levels of insulin results in decreased production of Sex-Hormone Binding Globulin (GHB).GHB mediated inhibition of breast tumors has recently bee n identified in literature [1]. Hence, this characteristic is analogous to loss-of- inhibition for breast-cancer cells. Also, it results in higher levels of free androgen's and estrogen – which have been implicated in proliferation of breast cancers, and progression of hormonal cancers in general. Decreased Testosterone levels – have significance in prostrate cancer, as lower testosterone levels have been associated with high- read prostrate cancers. The characteristic being of higher proliferation and less differentiation in the tumor. 2] Perpetuation of TNT-alpha – by virtue of higher levels of TNT- alpha in serum, there is higher susceptibility to inflammation and inflammation by itself has a potential role as a cancer promoting event at any given site. [Smith's Term Paper] Dopamine secretions by adipose tissue are covered with a few examples – o Lepton – is an dopamine secreted primarily by White Adipose Tissue (WATT), and has been shoo win to be active in the formation of reproductive tissue (including the prostrate). And has be en positively correlated with visceral obesity and large prostrate tumors [4].Studies have shown that lepton promotes the proliferation of androgen- independent prostate cancer cell lines. It has also been shown to promote vascular endothelial cell profiler and misdiagnoses in vivo, processes that are crucial to allow cancer progression. Also, it has been positively correlated with increased prostrate cancer cell migration (implying invasion and metastasis) [5]. Mechanism of action – The proliferation response of prostate cancer cells to lepton has been shown o involve intracellular signaling molecules such as physicality-instill 3- kinas (POP-K) and c-June NH-terminal kinas NON). 10] o Interleukin-6 – one third of the circulating level secretion of IL- 6 is from adipose tissue. It is directly proportional to visceral obesity and insulin resistance. Its normal role being in modulo action of immune response and cell-functions – it is basically a growth inhibitor. However, recently it has been shown to undergo a transition in its role from growth inhibitor associated with neuroscience differentiation to stimulator accompanied by androgen receptor cacti action in prostrate cancer progression [6].Prostrate cancer cultures have been shown to secrete high levels of IL- 6, and it is believed that chronic exposure to this dopamine leads to loss-of-growth- inhibition in tumor cells. Serum IL-6 levels >7 pig/ ml are associated with a poor prognosis in men with prostate cancer. O Vascular Endothelial Growth Factor (VEGA) – VEGA levels are positively correlated with visceral obesity, and it is a potent nitrogen that allows for cell- migration, misdiagnoses and micro-vascular permeability. It hence, has a direct growth factor effect on tumor progression of all ski ads of cancer.Aggressive high grade cancers all show high levels of VEGA secretions. It is why apotheosized that obesity driven elevation in VEGA levels is a potent priming event for all forms of c anger, specially hormonal cancers. O Depiction – this is an dopamine that is negatively correlated with obesity and visceral fat. It has been identified as a possible therapeutic agent in many obesity related metabolic co indications, such as diabetes, hyp ertension, etc. Hence, by virtue of its opposite nature to other adipose nest, it is hypothesized to be the ‘anticancer' dopamine. It is also negatively correlated with high h grade prostrate and breast cancers.The function of depiction is via its two primary receptors, which have a spatial didst fiction that is governed by other growth factors and adipose. Studies have also identified JUNK and signal transducer and activator of transcription 3 (STATS) as common downstream effectors of depiction. Both JUNK an d STATS play of cell proliferation, differentiation, and apotheosis during various physiologic and pathologic events such as tumor development. [7] Discussion/Analysis – Getting fat – Starting in chronological order of occurrence, in a patient's life – first, one must become obese for any risks to be present.Is this necessarily, true? Yes. Not that non-obese people are necessarily risk- free or unlikely to get cancer – but obesity is positively correlated with multiple forms of cancer, so that risk is assure deed. Foods containing high levels of saturated fatty acids and cholesterol are specifically t he ones that are implicated in development of central abdominal obesity. Linoleum acid (or Omega 6 polyunsaturated fatty acid) is a constituent of animal- at that has been positively implicated in prostrate cancer migration/ metastasis [12].Also, low-fat culture medium for in vitro tumor cultures resulted in decreased proliferation rates and low- fat diets for tumor bearing nude-mice also showed slower progression of tumors. White Adipose Tissue (WATT – a sub- classification of adipose tissue, which is largely present in visceral fat), is significantly co-relatable to consumption of animal- fat and saturated fatty acids. It is recognized as a metabolically active endocrine organ – some of the secretions of which have been listed above. Hence, there is definitely a relation between one's diet and cancer prognosi s.The role of obesity – Obesity has been generically classified as a condition that suppresses non- aggressive diseases and accelerates the aggressive ones. How true this stereotype may be, is not the subject of this report – but nonetheless the statement does hold true for cancer progression. To say that cancer (of any form) may be ‘induced' by obesity, is not a Justifiable states .NET on the basis of currently available data. However, ‘cancer progression' is definitely a task that obesity is able to remote to sufficiency (of the tumor).

Thursday, January 9, 2020

Technology s Effects On The Future Job Market - 1263 Words

Sean O’Leary March 29, 2017 English 12 Mr. Schneider Technology’s effects on the future job market Technologic advancements has become a very controversial topic as lots of people are worried to lose their jobs to robots in the future. There are also people that are optimistic about how these technological advancements can help citizens in their daily lives. A growing trend in the world has been the constant revelations in technology that has shaped the society we live in today. There have been many people who complain about the problems that plague the world and very few are willing to make a change in the world. Technology can be the solution or the problem for making the world a better place. Lots of individuals say that technology†¦show more content†¦There are also statistics that back up the claim about why people are worried about robots stealing humans jobs. In the graph shown on Linkedin are stats from the Bureau of Labor Statistics, it shows a major increase in unemployment for nonfarm jobs from July 2013 to July 2015. Another aspect of life in society that can be affected by technological advancement is how education will change to teach students new skills that can help them succeed in the future. In 2012 Mr Thrun founded an online-education startup called Udacity, and Mr Ng co-founded another. They had some comments on how the educational system as well the job market will be affected by new technology. Mr Thrun who’s says he founded Udacity as an â€Å"antidote to the ongoing AI revolution† (Re-educating Rita), which will require workers to acquire new skills throughout their careers. Similarly, Mr Ng thinks that given the potential impact of their work on the labour market, AI researchers â€Å"have an ethical responsibility to step up and address the problems we cause†; Coursera, he says, is his contribution. Moreover, AI technology has great potential in education. A big topic to consider as well is how technological advancement will affect production and the economy. A good example on how technology can help productivity is the steel industry over the past decades. â€Å"The US steel industry really stands out: over the period 1972-2002, it witnessed impressive productivity growth – 28%Show MoreRelatedTechnology And Economic Growth. When Studying Economics,1646 Words   |  7 PagesTechnology and Economic Growth When studying economics, one often finds periods of growth as well as periods of recession. There have been many reasons for these highs and lows throughout history. The United States has experienced many recessions dating back to the 1929 depression under Herbert Hoover to the most recent 2008-2009 depression caused by failing housing markets and malpractice (Amadeo,2017). However; the U.S. economy has always recovered and has flourished after recessions. One of theRead MoreThe Pros and Cons of Globalization Essay1680 Words   |  7 Pagescommunication aspect. So what its globalization and its effects on the United States? WHAT IS GLOBALIZTION? First off, we will search and explore some definitions of the term globalization. ?Globalization is the process of denationalization of markets, politics, and legal systems, i.e., the rise of the so-called global economy? (Introduction to Globalization, 2004). Another article states, ?Globalization is an inevitable phenomenon in human history that?s been bringing the world closer through the exchangeRead MoreThe Impact of Globalisation on Japan1638 Words   |  7 PagesGlobalisation has had a profound impact on the Japanese economy influencing levels of international trade, business operations, financial flows, government policy, labour markets and even environment. This movement has been driven primarily by numerous TNCs, trade liberalization, and the deregulation of the financial system, and numerous strategies adopted by the Government and Economy, resulting in the creation of a new Japan. ECONOMIC GROWTH AND DEVELOPMENT The Japanese economy, the 2nd largestRead MoreNyse And Nasdaq On The Advancement Of Competition And Technology866 Words   |  4 PagesThe future of NYSE is based on the advancement of competition and technology. NYSE’s Competition is Bats Global Markets and NASDAQ. Bats seamless IPO is what really contributes to its great success; it is something that NYSE should look out for in the future. Bats Global Markets’ investors sold 13.3 million shares of stock at $19 per share, on the high end of the $17 to $19 range talked. Bats is the second-largest stock-exchange operator in the U.S., after the NYSE. It holds a 21.1% share of theRead MoreInternal External Factors Of Managment Essay1733 Words   |  7 Pagesaction will be taken to achieve the goals. Planning is vital to insure the future success of the project being considered. Apple Inc. had to take many factors into consideration when planning the variety of products they would make available to consumers. Apple Inc. c hose a line of products marketed under the â€Å"I† brand. IMac, IPod, Iphone, and Itunes are some of the hardware and software Apple Inc. planned to build and market to consumers. Planning of the I brand had to take into considerationRead MoreMajor Forces That Are Leading International Firms Essay743 Words   |  3 Pagesoperations which includes (1) political (2) technological (3) market (4) cost and (5) competition. Many firms initiate international operations to gain assess by combined markets through exporting product or producing within the area. Technological According to (Ball, 2011) today’s technology has allowed an advance in computers, communication and an increase flow of ideas. Through the internet and networks small companies can compete globally. Markets Companies use foreign countries to establish a businessRead MoreCurrent Trends Of The Middle Class1131 Words   |  5 Pagespay debts as well as save for their future. In addition, the much middle class will tend to reside with their parents to cut down costs to save for both up keep and to pay off their debts. Consequently, unemployment is the other trending issue among the middle class. In essence, the middle class makes part of a higher percentage of the unemployed in the current society. 2. How social mobility affect retailers Social mobility has a great effect on the market especially if we consider the factRead MoreMobile Phone And Wireless Data Service1329 Words   |  6 PagesCell phone and wireless data service are the leading complements for smartphones like the Galaxy S. Leading network providers in the U.S. are ATT, Verizon, Sprint and T-Mobile. These service providers give consumers access to their networks (equipment and services) that allow smartphone devices to make and receive phone calls and access the Internet; sell and lease devices; and provide technical support to help consumers use and troubleshoot their devices. In addition to wireless services, smartphonesRead MoreThe Elements Of Globalization And Their Impact On Hr Functions1565 Words   |  7 Pagescurrent business structure into a more diverse culture. Since corporations are putting a stronger emphasis on diversity to stay competitive; globalization has impacted how these companies are managing its workforce. Firms that have a perception on the effects that globalization has on its human resources management, will help its managers to become better equipped to help their companies in a business that changes continuously in a global environment. The attributes of the global human resource specialistRead MoreOrganizational Culture at Apple Inc1727 Words   |  7 Pagespeople to buy a computer for their homes. Back then the computer community added up to a few brainy hobbyists. So when Steve Wozniak and Steve Jobs sold a van and two programmable calculators for thirteen hundred dollars and started Apple Computers, Inc., in Jobs garage, th e reach for success seemed far. But these two young business men, Wozniak 26 years old and Jobs 21 years old, had a vision. Computers arent for nerds anymore, they announced. Computers are going to be the bicycle of the mind. Low cost

Tuesday, December 31, 2019

Why Does Coffee Make You Poop

Your morning cup of coffee can jumpstart your day, but it may also send you on a beeline for the bathroom, both to pee and possibly to poop. Whether you experience the diuretic effect (you need to urinate) or colon-stimulating effect (you have a bowel movement) depends on your personal biochemistry and whether youre a regular coffee-drinker or not. Heres what scientists know. How Coffee Relates to Poop A study published in the gastroenterology journal Gut verified some people experience colon stimulation within minutes of consuming a cup of coffee. Not everyone reacts this way, so if you dont drink a cup of joe in the morning to get started in that manner, youre not alone. But for those of you for whom coffee does make you poop, how does it work? Scientists arent quite certain, but have ruled out some possibilities and identified other explanations. First, its probably not the stimulating effects of caffeine, since the laxative effect is seen with decaf as well as high-octane joe. Coffee promotes the release of the hormone gastrin, which stimulates the secretion of gastric juice and increases colonic motor activity. Activating the colon  may stimulate peristalsis, leading to the purgative effect. Is Coffee a Diuretic? The caffeine in coffee is a stimulant. Generally, stimulants increase urine production.  If coffee acts as a diuretic, drinking it will make you need to urinate more frequently, dehydrating you slightly. Dehydration can lead to constipation, which is the opposite of what some coffee drinkers experience. However, coffee isnt necessarily a diuretic! A 2003 study published in the  Journal of Human Nutrition and  Dietetics found that regular coffee drinkers develop a tolerance to the effect and dont excrete more urine, even if they drink 2-3 cups of coffee per day. So, if coffee doesnt act as a diuretic for you, you may be more susceptible to the laxative effect of the brew. Another factor could be psychological since bodily functions tend to adapt to a daily pattern. Thus, if you always start your day with a cup of coffee and a bathroom break, your physiology may become accustomed to the routine. However it works, scientists have verified coffees biochemical ability to send people to the toilet, just not necessarily  for the same reason as each other.

Monday, December 23, 2019

The Impact Of Scientific Research On The Development And...

1. While trying to define what research really is, it proves itself to be a very broad and open concept (Shuttleworth, 2008). Shuttleworth (2008) says, â€Å"†¦the definition of research includes any gathering of data, information and facts for the advancement of knowledge.† (p. 1). Things like reading books, surfing the web, and watching the news are all forms of research (Shuttleworth, 2008). On the other hand, the scientific definition for research is more planned and concise (Shuttleworth, 2008). Research within science involves solving and or answering a specific problem (Shuttleworth, 2008). 2. Social and scientific research is important in the development and advancement of society (University). In scientific research, the experiment and variables are more controlled and systematically tested where as social research is dynamic and harder to control variables (University). Scientific research involves solving and or answering a specific problem in some systematic way, the scientific method (Shuttleworth, 2008). 3. Applied and basic research does have key differences (Stanovich, 2007). In applied research is to find a specific answer to a specific answer (Stanovich, 2007). Basic research adheres to its own name focuses on â€Å"basic† principles and theories (Stanovich, 2007). Both of these research methods are similar within the aspect of their long time goal (Stanovich, 2007). Basic and applied research has proved to create important breakthroughs within scienceShow MoreRelatedImpact Of Technology On The Development Of Civilization1407 Words   |  6 Pagescontemporary society, science has played a more pivotal role than technology in the development of civilization. The purpose of science is to develop a vast breadth and depth of data and knowledge to enable us to understand why things are the way they are (Oberdan 26). On the other hand, technology is used to improve real problems based on justified beliefs and organizational systems (Oberdan 28). Without the knowledge and un derstanding of science, innovation would be lessened and society would notRead MoreThe Natural Sciences And The Arts1179 Words   |  5 PagesPeople often argue about what constitutes progress, and things that some regard as progress other consider to not be progress at all. In my opinion it is the development towards an improved or more advanced condition. However what I perceive something to be could be biased due to my beliefs and value system, this is a limitation which must be considered when discussing progress in reference to the natural sciences and the arts. Reason and imagination play an important role in both understanding andRead MoreThe Benefits of Space Exploration Essay1053 Words   |  5 Pages Curiosity has played an integral role in the advancement of the human species. From the discovery of fire by ancient ancestors to modern space explorations, it has been curiosity and the pursuit for a better future that has made humanity explore and innovate. Ho wever, exploration and innovation has never come without sacrifice. In regards to modern space exploration, the efforts to explore the universe has had negative effects including the loss of 18 human lives as of 2005 (CBS NewsRead MoreScientific Ethics Of Scientific Science Essay1702 Words   |  7 PagesScientific responsibility can be described as the duties or obligations are scientist or researcher has when conducting his or her research. Science relies on objective methods to gather empirical data without the interference of subjectivity or other factors affecting the results obtained. Science is an extremely important tool for humanity as the discoveries made in the scientific community can greatly impact the lives of individuals through advancements in therapies to novel drug discoveries.Read MoreA Pre Printing Press Increase And Interest1603 Words   |  7 PagesThe saturation of texts within Europe which transformed society is not greatly comparable to the limited initial introduction. While factors such as religious discontent, an early increase in textual access, and the charismatic figurehead of Luther were of great consequence, it appears the introduction of the printing press enabled such an extent of reform which some view as inevitable. The influence of the printing press on the scientific ‘revolution’ can be seen most profoundly as it changed attitudesRead MoreSignificant Health Care Event1225 Words   |  5 Pagesundoubtedly has been shaped at least in part by advancements in scientific research and knowledge, and technological innovation (Shi amp; Singh, 2012). The following exploration focuses on ways a specific scientific or technological event or innovation affected health care provision in the U. S. to date. Health care is dynamic. Science and technology continue to prove themselves as important facilitators of the change processes that occur in health care. The scientific method and nursing process are just aRead MoreTechnology: The Development of Civilization1040 Words   |  4 Pageslong as there have been people in this world, technology and science have existed. Technology is a powerful force which helped in the development of civilization and is a part of our system of culture that reflec ts its values. Technology has become very complex over the years and today it is known to be a social enterprise that includes all aspects such as research, design, finance, manufacturing, labor etc. In todays world, the real meaning of technology is not understood and known by all. TechnologicalRead MoreThe New Atlantis Essay898 Words   |  4 Pagesisland Bensalem is unlike any other in terms of societal advancement, however, with strict laws to follow. Power within the leaders is needed to create and mandate the laws on Bensalem. The story illustrates three different types of leaders with that power: religion, government, and scientists. While all three are relevant, scientists and religious leaders are the two magnified throughout The New Atlantis. The impact of scientific research on medicine and farming improved the way of life and gaveRead MoreCoe of Ethics1625 Words   |  7 PagesEthic Paper There are many healthcare organizations that follow their own mission with ethical values and company goals. The American Association for the Advancement of Science follows the mission statement of â€Å"advance science engineering, and innovations throughout the world for the benefit of all people.† (American Association for the Advancement of Science, 2015) By following company goals, this statement can be reinforced. What are the organization’s goals and how are they tied to its ethicalRead MorePros And Cons Of Genetic Engineering1101 Words   |  5 PagesGenetic engineering brings about great and marvelous things, yet it raised many ethical issues. Some encourage research, while others oppose against such a bizarre idea. Their arguments revolve around impacts on the environment, humans, and social values. This paper seeks to give an account of these issues and present a possible moral compromise. Ecological problems may be caused when genetically engineered species are introduced. It may offset the natural balance of a system and may even lead to