Types of Waste

Types of Waste Waste is known as a matter which current users have no purpose of, or it is known as a matter which can be harmful to humans, animals or the environment. Waste can be divided into two categories, general and hazardous waste. General waste is waste that does not harm humans, animals or the environment. For example household waste, garden waste, building rubble, dry industrial and commercial waste. Hazardous waste is more likely to cause danger to humans, animals and the environment. This waste is based on the chemical reactivity, explosives, corrosive and radioactive. Waste Found In the Community of Edenvale There is many different waste found in the community which affect the community. The types of waste found in my community are agricultural waste which comes from animal products and the production of crops. This waste can be recycled. Biodegradable waste is a type of waste that will go back into the soil and nature. This may include garden waste, animal waste, fruit and vegetable leftovers. This waste can be composted. Garden waste is known as grass clippings, weeds, tree branches and this can all be composted. Bulk waste is large waste, such as broken appliances, furniture and outer parts. Almost all of this waste can be reused or recycled. Trade waste is waste is generated by shops, offices, or commercial places. Construction waste is found on residential premises. This waste includes batteries, empty paint and pesticide containers. Some of the household waste is recyclable. Industrial waste is waste that comes from industrial and manufacturing processes. Some of this waste is haza rdous. Intuitional waste is found in schools, hospitals, research institutions and public buildings. Medical waste is known as any solid or liquid waste which is generated in treatments. The Waste plan in my Community In my community the waste management plan for households is that waste is collected once a week. Businesses are different and get waste removed twice a week depending on how much waste is generated. Industrial waste is also collected once a week. It has been working effectively because the municipality has had no complaints and customers are happy with the system. The community also stays clean by means of the council collecting waste around bins so that the community will stay clean. Hazardous waste containers are also being provided and specialized companies deal with this waste. People that dump illegally get high fines. Public roads are being taken care of by litter being picked up by services five times a week. In the CBD litter gets picked up seven days a week. Free standing pole bins get emptied daily. Informal Settlements around my Community Some informal settlements where waste is not managed well is in the CBD, Hillbrow, New Town, Alexandra Township, and Jeppestown. The pollution comes in the form of dust from gravel roads, lack of clean running water, lack of regular refuse removal, broken and non-maintained sewerage pipes, absence of toilet facilities and ignorant littering. Due to the overcrowding of the informal settlements with migrants who are unemployed, and are not able to pay housing rent leads to a decay of flats and houses. In Alexandra some people still use the bucket system which increases the contamination from sewerage in the environment, and some people can get a wide range of illnesses. The organic waste attracts rodents and insects infestations. Poverty and lack of knowledge in these areas lead to littering, overflow of broken sewerage systems and unmanaged waste. A waste management plan for the informal settlements is that refuse is removed twice a week by means of bulk containers and street hawkers are issued with refuse bags weekly. â€Å"The metropolitan council wants a waste disposal strategy; identification of waste disposal sites, establishments, operation and control of waste disposal sites.† The community water supply and sanitation programs aims to ensure all South Africans have access to clean water. The metropolitan also wants to prevent invasion of industrial sites. Some solutions that can help reduce waste are: Waste Avoidance, Prevention and Minimization: system to ensure the appropriate design promotion, optimizing operating procedures and good house keeping for all waste generating processes. Forecasting potential situations in which accidents and spills can cause unscheduled waste emissions. Recovering, Recycling and Reuse: Reduction in the waste stream. Recycle materials such as taxes on waste or subsides for waste cycling, and also extraction and utilization of landfill gas. Treatment and handling: Ensuring that waste is appropriately treated and processed to their disposal in accordance with laws, regulations and guidelines. Storage and Final Disposal: Timely identification investigation and construction of environmentally and socially acceptable waste disposal facilities. New innovative ways of managing waste in disadvantaged communities are required. We can move towards collection by paying people to collect litter and involve the community in programs. We can improve the awareness to the public with regard to waste. Allow people living in informal settlements to regain their dignity by providing sustainable, affordable sanitation. Polokwane Declaration The aim of the Polokwane Declaration is to reduce waste by 50 % respectively by 2012 and have a plan for zero waste by 2022. In order to achieve their goals they must engage more closely in a realistic and practical manner. Conclusion In Gauteng waste management is lacking it appears there has been an increase in waste per year between 1998 and 2003. It also appears that Polokwane Declaration of zero waste remains optimistic. Hazardous waste has decreased as a result of improvement in industrial activities. Recycling initiatives are being adopted and are successful. The importance of the public awareness of waste and recycling should be made aware and action plans formulated.

Future of technology (advantages and disadvantages) Essay

From day to day, our world has been changed gradually from one condition to another. Nowadays, technology has advanced in huge leaps and bounds. We cannot imagine the world without technological advances such as computer, televisions, and machines and so on. However there are some advantages and disadvantages of technology. First, technologies play an important role in society because it makes life easier to live on and makes time less consuming. People do not have to do all the hard labor anymore. For example, many people have washing machines, clothes driers and dishwashers, so the amount of energy needed to wash and dry clothes and wash dishes is greatly reduced. Second, medical science is very progressive and saves many innocent lives. Medical treatment has been going well with the help of technology. Nowadays, hospitals use technology as assistance for operations. However, technology also brings harm to our society. The overuse and development of factory industries causes pollution to our world. For example the use of cars and machines causes smoke that affects the quality of our air and destroys our ozone layer and as a result people suffer illnesses like cancer. Another disadvantage is that technologies create financial problems in families because most technologies are expensive. For example people that do not have a washing machine will have to wash clothes by hand which is time consuming. In conclusion, we cannot stop technology from developing in our society. Nowadays, we as people rely on technology everyday to make our lives simpler. Without modern technology our world would be a tough place to live in.

3 Types of Intermolecular Forces

Intermolecular forces or IMFs are physical forces between molecules. In contrast, intramolecular forces are forces between atoms within a single molecule. Intermolecular forces are weaker than intramolecular forces. Key Takeaways: Intermolecular Forces Intermolecular forces act between molecules. In contrast, intramolecular forces act within molecules.Intermolecular forces are weaker than intramolecular forces.Examples of intermolecular forces include the London dispersion force, dipole-dipole interaction, ion-dipole interaction, and van der Waals forces. How Molecules Interact The interaction between intermolecular  forces may be used to describe  how molecules interact with one another. The strength or weakness of intermolecular forces determines the state of matter of a substance (e.g., solid, liquid, gas) and some of the chemical properties (e.g., melting point, structure). There are three major types of intermolecular forces: London dispersion force, dipole-dipole interaction, and ion-dipole interaction. Heres a closer look at these three intermolecular forces, with examples of each type. London Dispersion Force The London dispersion force is also known as LDF,  London forces, dispersion forces, instantaneous dipole forces, induced dipole forces, or the induced dipole-induced dipole force The London dispersion force, the force between two nonpolar molecules, is the weakest of the intermolecular forces. The electrons of one molecule are attracted to the nucleus of the other molecule, while repelled by the other molecules electrons. A dipole is induced when the electron clouds of the molecules are distorted by the attractive and repulsive electrostatic forces. Example:  An example of London dispersion force is the interaction between two methyl (-CH3) groups. Example: A second example of London dispersion force is the interaction between nitrogen gas (N2) and oxygen gas (O2) molecules. The electrons of the atoms are not only attracted to their own atomic nucleus, but also to the protons in the nucleus of the other atoms. Dipole-Dipole Interaction Dipole-dipole interaction occurs whenever two polar molecules get near each other. The positively charged portion of one molecule is attracted to the negatively charged portion of another molecule. Since many molecules are polar, this is a common intermolecular force. Example:  An example of dipole-dipole interaction is the interaction between two sulfur dioxide (SO2) molecules, in which the sulfur atom of one molecule is attracted to the oxygen atoms of the other molecule. Example: H​ydrogen bonding is considered a specific example of a dipole-dipole interaction always involving hydrogen. A hydrogen atom of one molecule is attracted to an electronegative atom of another molecule, such as an oxygen atom in water. Ion-Dipole Interaction Ion-dipole interaction occurs when an ion encounters a polar molecule. In this case, the charge of the ion determines which part of the molecule attracts and which repels. A cation or positive ion would be attracted to the negative part of a molecule and repelled by the positive part. An anion or negative ion would be attracted to the positive part of a molecule and repelled by the negative part. Example:  An example of the ion-dipole interaction is the interaction between a Na ion and water (H2O) where the sodium ion and oxygen atom are attracted to each other, while the sodium and hydrogen are repelled by each other. Van der Waals Forces Van der Waals forces are the interaction between uncharged atoms or molecules. The forces are used to explain the universal attraction between bodies, the physical adsorption of gases, and the cohesion of condensed phases. The van der Waals forces encompass intermolecular forces as well as some intramolecular forces including Keesom interaction, the Debye force, and the London dispersion force. Sources Ege, Seyhan (2003). Organic Chemistry: Structure and Reactivity. Houghton Mifflin College. ISBN 0618318097. pp. 30–33, 67.Majer, V. and Svoboda, V. (1985). Enthalpies of Vaporization of Organic Compounds. Blackwell Scientific Publications. Oxford. ISBN 0632015292.Margenau, H. and Kestner, N. (1969). Theory of Inter-molecular Forces. International Series of Monographs in Natural Philosophy. Pergamon Press, ISBN 1483119289.

My View Philosophy As A Discipline Or Area Of Study

I view philosophy as a discipline or area of study that methodically examines many of life s questions like the ones I ask myself everyday: what is real? What isn t real? How do I know the things I know? Why do I know them? Am I free to make my own choices or is there an unseen force that controls my life so that no matter what I do, I can t change what happens to me? Philosophy to me examines these questions through argument with logic, and reflection or examination of one s inner self. According to Socrates, an unexamined life is not worth living. I suppose that is why he is one of the most revered forces in the field of philosophy. The role of philosophy in our everyday lives cannot be over emphasized. For example, Pythagoras, the father of philosophy was incredibly unique in his thought processes. His theories and quotes are still very much in use by younger philosophers because of their significances in these present day and age. Philosophers are lovers of wisdom with great thirst for intellectual reasoning. The study of Philosophy is very useful in many ways: It is used to solve mathematical, psychological, logical and scientific problems; to decipher the underlying reasoning behind claims or evidence of an argument; and to systematically address problems and concerns connected to reasoning, knowledge, values, existence, etc. Philosophy is a powerful theoretical tool that is made by man and used by men because of its critical importance in our day to dayShow MoreRelatedThe Importance of Philosophy Essay1311 Words   |  6 PagesThe Importance of Philosophy ‘Philosophy is to be studied, not for the sake of any definite answers to its questions, since no definite answers can, as a rule, be known to be true, but rather for the sake of the questions themselves.’ (Bertrand Russell, Problem of Philosophy, pp. 93-94). Discuss the usefulness (or the lack of it) of studying philosophy with referenceRead MoreMy Personal Classroom Management Philosophy1278 Words   |  6 Pages A classroom philosophy is fundamental for an effective educator, for not only does it set up one s classroom but it also sets up the type of teacher that one wants to be. A classroom philosophy dictates everything from discipline to the way one presents information. It is the driving force in a teacher’s classroom and is often times directly related as to why that teacher wants to teach. Due to its importance, it is critical to examine a multitude of different philosophies before crafting one’sRead MorePhilosophy : The Philosophical Study Of Human Values, Epistemology, And Metaphysics1069 Words   |  5 PagesBefore taking this class, I thought that philosophy was strictly the study of space and abstract ideas that I never really gave any attention to. Now at the end of the semester I can say that not only have I realized how wrong my original opinion of philosophy was, but I also learned that the more philosophy I can study, the better I will be able to make decis ions in my life. Philosophy can be broken down into three branches: Axiology, Epistemology, and Metaphysics. These branches each have theirRead MoreWhat Is Philosophy? How Does It Influence Our Lives?1192 Words   |  5 Pagesis philosophy? Why study it? What purpose does it have? How does it influence our lives? According to Google, â€Å"philosophy is the study of the fundamental nature of knowledge, reality, and existence, especially when considered as an academic discipline.† But how does it influence us? Why should we study it? What purpose will it serve – if we do? Before we can understand the purposes that philosophy will serve. We must first understand why we must study it and how it will influence us. We study philosophyRead More My Philosophy of Education Essay examples802 Words   |  4 PagesPhilosophy of Education My philosophical view on education is idealistic. I believe that teachers should be role models for their students. This is one of the reasons for my wanting to become a teacher. I also enjoy seeing people learn things that are difficult for them. I plan on teaching history, which would be the theme for the looks of my classroom. The walls would be filled with posters of important events in history. There would also be pictures of importantRead More Teaching From A Design Perspective Essay1714 Words   |  7 PagesTeaching From A Design Perspective Developing a philosophy of education is more than asserting a love of wisdom in the theory and practice of teaching. It may be heartening to feel, but it lacks backbone. For a philosophy to have weight and merit, it needs truth, logical strength, and soundness. (Hughes 19) My philosophy of education asserts the following premises that if we teach: learning as relational; creativity as skill; and knowledge as design; then, we create an instructional approach thatRead More The Philosophy of Teaching Essay1115 Words   |  5 PagesMy Philosophy of Teaching Philisophical teaching stratigies include the following disciplines, essentialism, existentialism, and many others. Of these stratigies the philisophicla approaches each include a distinct direction in the style and type of learning taking place. Lessons should include these philisophical teaching stratigies within there designed properties. Although all of the stratigies may be able to incorporate all learning disciplines and learning styles a lessonRead MoreEssay on Philosophy of Christian Education1357 Words   |  6 Pagesand methodological changes. Philosophies of education have also changed through the years as various voices have seemed to grasp the purpose of educating the next generation, thus laying out objectives to reach those goals of teaching children. The statement â€Å"philosophy of Christian education† contains much information to be unwrapped. The term philosophy literally means, in the Greek, â€Å"love of wisdom.† In this case, the study of philosophy involves a â€Å"critical study of the basic principles andRead More My Personal Philosophy of Education Essay1638 Words   |  7 Pages Philosophy of Education For me, the decision to become a teacher is more of a way of life than a career. I have always loved school, practicing at being school marm from a young age, and voraciously devouring every shred of education offered me in my career as a student. If it were possible, I would be a student for the rest of my life. And then I still would not have learned enough. As a teacher, I hope to instill this appetite for knowledge in secondary students. They are, afterRead More Philosophy of Education Essay examples1208 Words   |  5 PagesPhilosophy As Abigail Adams once said, â€Å"Learning is not attained by chance, it must be sought for with ardor and attained to with diligence.† Just as students learn with ardor and diligence, teaching is also a profession learned with ardor and diligence to achieve excellence as a teacher in today’s classroom. As I have grown up in a family thriving with teachers, I have seen both lessons taught and lessons learned. Children can offer a unique reward; to see a child learn is an accomplishing

Equality And Diversity In Kurt Vonneguts Harrison Bergeron

In an ideally progressive America, society should value both equality and diversity. Equality is justice. Diversity is individuality. Equality gives rights. Diversity enriches culture. Unfortunately, we do not live in an ideally progressive America. As equality in our society has increased, we have viewed it as progress. However, diversity has often been a source of conflict in our society. Jealousy, confusion, anger, and so many negative emotions have arisen from our differences and slowed the progress of equality. Perhaps, diversity should just be done away with. If we can not value our diversity, should we focus entirely on equality? Kurt Vonnegut’s â€Å"Harrison Bergeron† answers that question with a solid no, we should not. Through his†¦show more content†¦This oxymoronic idea of having two hundred and thirteen plus amendments emphasizes Vonnegut’s picture of a dystopian society in which over excessiveness of rules infringes upon citizens freedoms. The sarcasm seen in â€Å"unceasing vigilance† is that it gives the handicapper general an image as being a protector of citizens, which later in the story becomes rather ironic as she is revealed as someone who tortures and murders people. Another example of Vonnegut’s sarcasm is the descriptions he gives as to what is considered normal in this future society. He explains to the reader that Harrison’s mom, Hazel, â€Å"had a perfectly average intelligence, which meant she couldn’t think about anything except in short bursts (Vonnegut 1).† This has got to be sarcasm because by today’s standards a person with average intelligence can definitely think in more than just short bursts, and one would hope that average intelligence would be higher in future society, not dramatically lower. The scary, underlying theme being shown through this sarcasm is that society, rather than achieving equality through educating people to reach higher standards of intelligence, lowered the standards of average intelligence to the lowest it could possibly be. The worst part is that the characters described in the story, namely Harrisons parents, Hazel and George, are completely oblivious to how much of a dystopia their society is. Dramatic irony is when the readerShow MoreRelatedThe Fight Between Equality And Individuality950 Words   |  4 PagesThe Fight between Equality and Individuality Equality is a topic of great debate in the world today, ranging from marriage equality, to racial equality, to religious equality. Whether this equality is God given or legislative, it allows every member of the society to express or better himself in any way he sees fit. Every person has the ability to say or write what he wants and how he wants to. Every person has the ability to become wealthier or more successful. Every person has the ability to become

Anion Root Tip Free Essays

In the experiment, onion root tips are choosen to be observed under microscope. It is because the chromosomes are larger than most of the others plants. The root tips of onion are picked to observed as the root tips are the region where the cell division occurs mostly. We will write a custom essay sample on Anion Root Tip or any similar topic only for you Order Now The cells at the tips of the onion are actively dividing, therefore they are always in stages of mitosis. The tips on the slide are squashed with the aim to show a better and clearer observation of the chromosomes of individual cells. Adding Feulgen stain is to visualize the onion root tip cells. Normally the chromosomes are not visible in nondiving cells because the DNA is still uncoiled. After adding Feulgen stain, supercoiling of the chromosomes into a highly compacted form happen. The supercoiled chromosomes are formed so that the chromosomes can be visualized under microscope. Be precautious when treating with Felgen stain because it is a type of DNA specific stains and carcinogens. Gloves should be wore. Based on the results, it shows that interphase is the most abundantly stage that is found in onion root-tip cells, and is followed by prophase. The other phase: metaphase, anaphase and telophase only show lower amounts. The larger amount of interphase shows that the duration taken in interphase is longer than other phases. Interphase is a stage for the growth and also development of the cells. Majority of the cells are in interphase as replication of genetic material,DNA and organelles for production of new cells take a longer time. Prophase is the common phase after interphase. More times is needed for the process of condensing of sister chromatids into chromosomes. During prophase, mitotic spindles are developed from microtobules that produced by centrosomes too. Therefore, more times is needed for the more complicated stages, which are interphase and also prophase. Interphase is a stage when the cell is not dividing but preparing for its next stage. The nucleus have one or more dark-stained nucleoli that is filled with network of threads. The threads are actually the chromatin. During interphase, the genetic material and organelles are replicated. Interphase is divided into three phases which are G1, S and G2 phases. G1 is the longest phase as the work to resume growth following mitosis is carried out here. The preparation for replication of DNA occur S phase is the phase when the DNA synthesis. During this phase, the cell’s DNA replicates. G2 is a gap between the synthesis of DNA and beginning of mitosis. It is a period of rapid cell growth and synthesis of protein. During prophase, the chromatins super coiled and become thicker and shorter. Thickening continues till they condense into chromosomes. Each chromosomes has been duplicated, consists of two sister chromatids. Soon, the spindle which is made up of microtubules start forming. The disintegration of nuclear envelope and nucleoli occur. At metaphase, the chromosomes have moved to the center of the nucleur. The chromosomes have aligned at the metaphase plate and the centromeres of each sister chromatids, chromosomes have attached to the spindle. The nuclear membrane disintegrates totally at the same time. The centromeres are divided during anaphase. Sister chromatids are seperated and pulled to the corresponding poles by the spindle fibres. While the telophase is the last stage of mitosis division. A new nuclear envelope is formed around each group of chromosomes. The chromosomes uncoil. The nucleoli and nuclear envelope are formed and reappearred again. The cytoplasm is divided equally and two daughter cells are produced. How to cite Anion Root Tip, Essay examples

Development of a Web-Based Student Information System for Secondary Schools in Nigeria free essay sample

School Management System In most Nigeria secondary schools, the storage, access and management of information is very poor. Information regarding students, their respective classes, and subjects taught in these classes, performance assessment records, grade entry and other forms of data manipulation are generally carried out manually using pen and booklets, in rare cases Microsoft Excel. Access to information can be cumbersome, irritating and frustrating due to poor storage and inaccessibility. Parents, officials and staff of these schools find it very difficult to get certain information that could enhance their decision-making and completion of an assigned task. I was asked by my instructor to analyze, design, develop and implement a practical solution that will alleviate these problems in a typical secondary school. The purpose of this report is to: 1) Provide details on the functional requirements and design specification of a typical solution. 2) Demonstrate that the requirement that will be stated in (1) above have been satisfied by implementing the solution. We will write a custom essay sample on Development of a Web-Based Student Information System for Secondary Schools in Nigeria or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page ) Provide details of the development process and critically appraise the solution. The objective of this project is to design, develop and implement a computerized system that will enhance access, storage, processing and management of information regarding E-Student Management System student, their studies, teachers and subjects including student performance assessment records. I have designed, developed and implemented a web-based system using technologies in Microsoft . Net framework 4. 0 and Microsoft SQL Server 2008 software. A brief detail description of theories and techniques of the design and development of this solution is appraised in this report. Furthermore, an attached appendix explains the models, workflow and the architecture of the application. Users will be able to have access from any computer that has a browser and is connected to the internet. With a graphical user interface, this system is simple, user friendly and intuitive to use. It is not uncommon to find that many learning institutions in Nigeria, including secondary schools, still keep records in files and tucked them away in filling cabinets where they accumulate dust. Many of these files are often eaten up by rodents and cockroaches thus rendering them irretrievable. A great deal of routine administrative work in schools is still done manually with the state and the Federal government, including the administrators of this institutions showing little or no interest in embracing ICT. The administrative drudgery in secondary school institutions an be better managed through ICT. Secondary education administrative functions include a wide variety of activities such as educational governance, supervision, support services, infrastructure, 5 E-School Management System finance, budgeting, accounting, personnel selection and training system monitoring and evaluation, facilities procurement and management, equipment maintenance, and so on (Thomas, 1987). In most N igerian schools, officials and staff still go through the laborious exercise of manually registering students, maintaining records of students? erformance, keeping inventory list of supplies, doing cost accounting, paying bills and printing reports. The huge man-hour spent on these exercises can be drastically reduced with IT technologies to enhance overall management procedure. Thomas (1987), said that â€Å"Computers bring great speed and accuracy to each of these tasks, along with the convenience of storing large quantities of information on „small disks or tapes? (P. 5). For the purpose of this project, problems related to the management of information regarding student and their academic work, including teachers and subjects is the matter of concern.