How To Make Homemade Drain Cleaner

How To Make Homemade Drain Cleaner Why pay for expensive drain cleaners when you can apply chemistry to make the products yourself? Here is how to make homemade drain cleaner to unclog your drain cheaply and effectively. Homemade Drain Cleaner Method #1: Baking Soda and Vinegar The same chemical reaction that makes bubbles for the classic science fair chemical volcano can be used to loosen gunk from a slow drain. When baking soda and vinegar are mixed, carbon dioxide is produced. This agitates material in the clog, making it easier to flush away. Remove as much excess water as possible.Pour a liberal amount of baking soda (sodium bicarbonate) into the drain. You can use half a box, if you like.Pour vinegar (weak acetic acid) into the drain. The reaction between the chemicals will produce bubbles.If you have a plunger, try to loosen the clog.Rinse with hot water.Repeat if desired. Mixing baking soda and vinegar is safe and non-toxic. The products are also easy to find and inexpensive, so if your drain is just slow rather than seriously clogged, its a good option to try. If no water is draining at all, you may need to break out the big guns. Drain Cleaner Method #2: Sodium Hydroxide The active ingredient in serious drain cleaner is sodium hydroxide or lye. If youre a true do-it-yourself type, you can actually make sodium hydroxide from the electrolysis of sodium chloride (table salt) in water. Another way to make lye is from ashes. You can purchase sodium hydroxide (also called caustic soda) at any hardware supply store.  Some commercial products also contain small metal flakes, which react with sodium hydroxide to produce hydrogen gas and a lot of heat. The heat helps melt greasy clogs. Fill a plastic bucket most of the way full with cold water. Sodium hydroxide can react with metal, so a glass bowl is fine too, but  dont use a metal pot.Add 3 cups sodium hydroxide. You can stir it with a plastic or wooden spoon. The mixture will fizz and heat up.Pour this solution into the drain. Let it work its magic for 30 minutes,Rinse with boiling water. Safety Information The sodium hydroxide dissolves organic material, like hair and grease. This is a highly effective chemical, but as with commercial drain cleaner, you need to follow safety instructions. Sodium hydroxide can burn your skin and evolve caustic vapors. So, wear gloves and avoid handling sodium hydroxide or putting unprotected hands in the water after adding this product. Make sure air circulation in the room is good and avoid using more product than you need.  While you could simply pour sodium hydroxide in your drain, its much safer for you and your plumbing to mix it with water first to dilute it. Not that you would, but dont drink it or leave it where children or pets might get into it. Avoid inhaling the fumes. Basically, follow the safety precautions listed on the container. Additional Tips A common problem with bathroom sinks, showers, and bathtubs is hair caught in the drain. Remove the drain and pull away any hair or other matter that has become trapped. If you havent tried it already, clear the U-shaped trap below the drain, Put a bucket under the drain and use a wrench to unscrew the trap from the plumbing. Shake it out or use an old toothbrush to push debris through the joint. Rinse it with water before screwing it back into place.

November 2007 Popular Articles

November 2007 Popular Articles November 2007 Popular Articles November 2007 Popular Articles By Daniel Scocco English Grammar 101: Sentences, Clauses and Phrases: Welcome to English Grammar 101, the newest category on Daily Writing Tips. I thought that creating a series of posts covering the basic grammar rules and parts of speech would be useful to many people, especially if you consider the diversity of our readership. On this first post we’ll cover sentences, clauses and phrases. Are You Sure You Mean â€Å"Moot†?: I just caught myself writing â€Å"the question is moot† meaning â€Å"the question is irrelevant or closed.† I immediately scrapped â€Å"moot† for a different adjective. Why? Because I remembered an occasion on which my son, a journalist, ruined the word for me by explaining that I was using it incorrectly. Is There Really Room for Error in Writing?: Writing is a battle. On one side: the force of your important message. On the opposing side: the forces of ignorance and misunderstanding. Your weapons: your words. Your support: the entire tradition of the English language. Can You Speak Your Readers’ Language?: Face it, we English speakers (which presumably includes you, since you’re reading this) don’t always read and write the same language, even if we all call it English. Sure, someone trying to communicate in a language that isn’t their native language may have a harder time being understood. But we understand that and make allowances for it. I talk more slowly (usually) when I’m not speaking English, and my listeners don’t expect me to speak perfectly. Among/Amongst: Is there a Difference?: I first heard amongst used when I went to live in England. To my ear it sounds quaint and very â€Å"British.† I especially like it in the expression â€Å"to put the cat amongst the pigeons.† If there ever was a difference between the two words, it is lost now. Malapropisms: Sheridan’s 18th century play, The Rivals, featured a hilarious character called Mrs Malaprop, who was apt to drop a verbal clanger whenever she opened her mouth. That’s where we get the word malapropism from, though its real origin is in the French phrase mal propos, meaning inopportune or not to the purpose. Five Tips For Writing Great Web Content: Writing for the web is another great freelance writing market. It’s already huge and it’s growing every day. There’s so much web content out there that you need to make yours stand out. Here are four ways to make your web content appeal to readers. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the General category, check our popular posts, or choose a related post below:15 Terms for Those Who Tell the Future"Certified" and "Certificated"20 Names of Body Parts and Elements and Their Figurative Meanings

Staffing Assignment Example | Topics and Well Written Essays - 500 words

Staffing - Assignment Example In general, staffing can be said to include several processes such as work force forecasting, work force planning, and appropriate strategizing. Staffing is also concern with placing of existing work force; relocating and relocating people based on the company’s needs, tasks of an individual, the projects related to the activities of the company and the appropriate professional skills of a worker. The actual staffing process starts by the staffing companies taking efforts in studying the job requirements and specifications of their client. It is the role of the business to understand the organization’s culture before attempting in invitations of those candidates seeking the job, interviewing the candidates, and making follow up concerning their references and other appropriate details. The final process is presenting the job seekers who qualify the interviews and found by the staffing company to possess appropriate qualities for the job. Staffing can be permanent or temporary, with temporary staffing the group in the company involved in the process forms a co-employment relationship in combination with clients this is normally achieved through taking responsibilities for the agreed company’s issues. The permanent staffing, on the other hand, undertakes other roles, in addition to recruitment permission related, to permanent fulfillments for the positions, which are open to individuals wishing to go for the job. Providing companies with candidates are usually achieved by the staffing companies, the aspects in which the companies as provided with include direct hire basis, contract and contract to high. The thorough process of interview usually enables the appropriate solutions and processes effective. Resources for learning and understanding the business, its environment, staffing needs, products and services are usually availed by the staffing company. By working out the basic

Instrumentation principles for media technology microphone technology Essay

Instrumentation principles for media technology microphone technology - Essay Example According to Snoman, a microphone, casually referred to as mic or mike, is a device that â€Å"converts sound into an electrical current that is then transformed into an audio signal at the end of the chain† (152). How well the sound gets captured by the microphone and un-obstructively reproduced and transmitted to the audience, and how well the microphone meets the live or studio requirements of sound, is the main concern. There is no doubt that when you go for a high quality microphone, you are ultimately ensuring excellence of the sound; however, every microphone has its own tonal quality that is different from other microphones. Thus, choosing the right microphone is what requires good sensible knowledge about the microphone technology and some basic tips and tricks of utilizing this technology. â€Å"Microphones are a key factor in achieving high quality recordings and sound reproduction†, says Peterson. The first microphone ever developed consisted of a metal diaphragm connected to a needle which was further connected to a metal foil. When the diaphragm would catch differences in air pressure, it would cause the needle to move which would scratch out specific patterns onto the metal foil. When these scratches were later run by the needle, they would cause the diaphragm to move which reproduced the recorded sound (How Stuff Works). The latest microphone technology, however sophisticated, works on the same principle that is, converting air pressure waves into electrical current. Whatever the type of the microphone is, all have one thing is common. That is the diaphragm which is actually a thin paper or a thin piece of aluminum or plastic, located in the head of a typical microphone, and vibrates when it catches sound waves produced by differences in air pressure (see Fig. 1). Vibrations in this diaphragm cause vibrations in other modules of the microphone as well

Social work Essay Example for Free

Social work Essay Divergence between social work and the law is the shift in the perspective or priority of social work that occurred during the 1930s. Previously social work played an important role in legal processes or in the justice system by supporting investigations and providing vital testimonies in court cases. However, during the 1930s at the onset of the great depression, social work underwent a change in priority so that the direction of efforts was towards humanistic issues and mental health issues so that social workers engaged more in these areas and less in legal aspects. It was only during the early 1990s that an area of social work renewed links with law. This was spurred by the recognition of social workers of the need to succumb to the legal regulation of the profession to make social workers recognized as service providers. (Barker Branson, 2000; Neighbors, 2000) In another sense, divergence between social work and the law also pertains to the conflict or friction between the values of social work and laws such as self-determination highly valued by social work relative to the constraints or control imposed by laws. In mental health care, respect for the person forms part of social work practice but mental health laws allow forms of restraint in certain situations and subject to regulatory standards. (Preston-Shoot, Roberts Vernon, 2001) As social work again renewed its relationship with law, social workers need to know a number of things about law. First is the manner that laws are made and passed since social workers are also advocates of any change or improvements needed in areas of law they are involved in. Second is the manner that legal provisions and jurisprudence are interpreted to be able to apply or use laws in various areas of service delivery. Third is the manner that legal provisions are enforced such as procedures in the courtroom, legal documents, roles of members of the legal profession, and other workings of the legal profession since social workers also take part in these procedures. (Barker Branson, 2000; Neighbors, 2000) 2. Summarize in your own words what forensic social workers do, motivations for forensic social workers, and what are the steps toward forensics becoming a specialty. Forensic social workers apply social work to issues pertaining to the law or legal systems (Brammer, 2006). Specifically, forensic social workers fulfill three primary functions. First is the provision of consultation, education and training to members of the legal profession, law enforcement authorities, correctional system personnel, and the public over areas of social work integrated with the law. Second is rendering diagnosis and recommendations and providing treatment to populations within the correctional system, crime victims, witnesses, and criminal justice staff. Third is engaging in administrative and advocacy functions such as policy development, mediation or arbitration, education and training, and research. These are general functions since social workers engage in these functions in terms of their fields of competence or expertise. (Johns, 2007) The greatest and encompassing motivation for forensic social workers is the personal rewards achieved from altruistic actions. The pay of forensic social workers varies according to specialization and expertise. The work is not necessarily appreciated in the criminal justice system or the public. (Barker Branson, 2000) There are three steps in becoming a forensic social worker. First is to acquire exceptional knowledge on the selected area of expertise. Second is to effectively communicate acquired knowledge and translate this into practice to enhance expertise. Third is to become known as an expert in the field through networking or referrals. (Barker Branson, 2000) 3. After reading these two chapters, would forensic social work be a profession you would be interested in pursuing, why or why not? Yes. Forensic social work is a challenging field that develops the potential of social workers to develop knowledge and skills in a multidimensional field of practice that benefits a wide-range of people, especially those with limited knowledge of the law and legal system. Reference List Barker, R. L. Branson, D. M. (2000). Forensic social work: Legal aspects of professional practice (2nd edn. ). New York: The Haworth Press. Brammer, A. (2006). Social work law (2nd edn). Upper Saddle River, NJ: Longman. Johns, R. (2007). Using the law in social work (3rd edn. ). Devon: Learning Matters Ltd Neighbors, I. A. (2000). Forensic social work: The interface between social work and the law. In K. Van Wormer A. R. Roberts (Eds. ), Teaching forensic social work: Course outlines on criminal and juvenile justice and victimology (pp. 113-117). Alexandria, VA: Council on Social Work Education (CSWE), Inc. Preston-Shoot, M. , Roberts, G. Vernon, S. (2001). Values in social work law: Strained relations or sustaining relationships?. Journal of Social Welfare and Family Law, 23(1), 1–22.

Research Issues in Parapsychology Essay -- survival-after-bodily-death

"I shall not commit the fashionable stupidity of regarding everything I cannot explain as a fraud." -C.G. Jung (Society for Psychical Research) "Parapsychology is a belief in search of data rather than data in search of an explanation." -C.E.M. Hansel (Alcock ix) For years, ghosts and poltergeists have been a part of our popular lexicon. From stories told around the campfire, to motion pictures like The Haunting, to books like the Scary Story series, everyone has heard a good ghost story or two. Many people claim to have actually been party to a few supernatural experiences themselves. But for as long as we have told these frightful stories, science has been attempting to explain them beyond the typical bump in the dark. This investigation into the paranormal eventually evolved into the field of parapsychology. Current research in parapsychology has three focuses: psychokinesis (PK), extrasensory perception (ESP), and survival-after-bodily-death experiences. Psychokenisis is direct mental interaction with objects animate or inanimate. Extrasensory perception is a general term for obtaining information about events beyond the reach of the normal senses ("Parapsychology FAQ"). Survival-after-bodily-death is the investigation into events and phenomena dealing with life after death. In this paper, I intend to look at parapsychology and the study of survival-after-bodily-death. This area of parapsychology is perhaps the most recognizable, yet also the least investigated. I intend to look at the rise of this field of inquiry as a science, the arguments for it and against it, and why survival-after-bodily-death is not as prominent a field as it once was. History Parapsychology's roots can be traced back to the... ...botree.com/ [Accessed 20 April 1999]. Parapsychological Association (1999, Dec.). Parapsychology FAQ. [Online]. Available: http://www.parapsych.org [Accessed 20 April 1999]. Price, Harry. Confessions of a Ghost-Hunter. Putnam & Company: London, 1936. "Online Research in Parapsychology." Encyclopà ¦dia Britannica. [Online] Available: http://search.eb.com/bol/topic?eu=70964&sctn=1 [Accessed 26 April 1999]. Rhine, Louisa E. The Invisible Picture. McFarland & Company: Jefferson, 1981. Society for Psychical Research. [Online]. Available: http://129.215.50.44/spr.html [Accessed 20 April 1999]. Tyrrell, G. N. M. Apparitions. Gerald Duckworth & Co. Ltd.: London, 1953 Weiner, Debra H. and Radin, Dean I., eds. Research in Parapsychology 1985. The Scarecrow Press, Inc.: Metuchen, 1986. Wilson, Colin. Mysteries. New York: G.E. Putnam's Sons, 1978.

Solution To Solve The Plastic Waste Problems Environmental Sciences Essay

The intent of this undertaking is to supply a executable solution to work out the fictile waste jobs and assist occupants in the Mekong Delta countries to better the conveyance substructure. Specifically, this undertaking is aimed to utilize fictile waste as an alternate building stuff for constructing roads in the Mekong Delta countries. The modified-plastic route is designed to run into specific demands that were set to do certain the route would be suited for the local environment and have an economic public presentation. In this undertaking, Group F chose fictile waste as the mark. It is because fictile waste such as plastic bags and plastic bottles is non-biodegradable in the natural environment. As a chief pollution, fictile waste is harmful to the environment. Maltreatment of plastic and deficiency of recovery has resulted in many environmental jobs. Besides, recycling plastic waste is non popular in Vietnam which is a immense squander. Based on this information, Group F decided to happen a feasible manner for recycling fictile waste. The usage of fictile waste in route building is an environment-friendly engineering. â€Å" In recent old ages, applications of plastic wastes have been considered in route building with great involvement in many developing states. â€Å" [ 1 ] This sort of engineering has become progressively popular around the universe. In legion states, particularly in developing states, the conveyance and logistics systems are under high strain from additions in population and trade. So does in Vietnam. Thus, bettering the substructure in the Mekong Delta countries is besides really of import. Hence utilizing modified fictile waste to construct roads is an effectual method to work out these jobs. Using fictile waste in route building can be a good solution. Harmonizing to several field trials, â€Å" the plastic wastes used after proper processing as an additive would heighten the life of the roads and besides work out environmental jobs. † [ 2 ] It follows that utilizing fictile waste i n route building is a feasible solution to equilibrate the environment and development. Implementing this undertaking can both increase the recovery rate of plastic wastes and better the populating criterion in Vietnam, particularly in the Mekong Delta. The aims of the undertaking were to assist the local people cut down the plastic waste, work out the traffic jobs, and increase the sustainable development. This paper provides background information and describes the methods and tools used to construct a route from plastic wastes. As good, the paper provides the processing strategies for the plastic wastes and shows a route theoretical account made from fictile waste. The feasibleness and economic efficiency of the design is besides discussed in this paper. The recommendations and future work are provided in the concluding parts.Background:In this subdivision of the study, background information refering the undertaking will be provided.Vietnam and Mekong DeltaSocialist Republic of Vietnam which is called Vietnam for short is a Southeasterly Asiatic state and locates on the Indochina peninsula. â€Å" Vietnam covers a entire country of 331,210aa‚ ¬A? . [ 3 ] And has a population of 87,840,000 in the twelvemonth of 2011. [ 4 ] In recent old ages, Vietnam ‘s economic system has made a batch betterment. After the economic reforms, this state has become one of the universe â €˜s fastest turning economic systems. Harmonizing to an economic statistic, â€Å" Vietnam ‘s one-year GDP growing rate is 8 % between 1990 to 1997 and about 7 % from 2000 to 2005. † [ 5 ] In malice of crisp velocity development, Vietnam is confronting several jobs such as pollution, lodging deficit, out-of-date substructure and so on. Mekong Delta is one of the illustrations. Harmonizing to the AusAid study, the â€Å" Mekong Delta is celebrated as the â€Å" rice bowl † of Vietnam it contributes up to 90 % of the state ‘s rice exports. † [ 6 ] In recent old ages, the economic system has been improved significantly ; nevertheless, there are still tonss of jobs to work out. As mentioned before, Mekong Delta is besides confronting the same challenges as the whole state. Now, pollution is a serious job. Waste such as chemicals, human wastes, effluent and plastic wastes has harmed the local environment and people ‘s wellness. Additionally, with the growing of population and economic system, out-of-date substructure can non fulfill people ‘s demand. The traffic system in the Mekong Delta is under utmost emphasis. It is necessary for the native abodes find a manner to work out these two jobs. As one unit of the international assistance undertakings, the AusAID besides realized this issue. There is a transit betterment undertaking to assist the Mekong Delta to better the conveyance substructure. This undertaking has an estimated entire cost of US $ 306 million with programs to upgrade 325km of roads through this undertaking. [ 7 ]Technology used in the undertakingPresents, plastic merchandises are about everyplace. As a inexpensive and effectual stuff, plastic is widely used both for agribusiness and industry. Using fictile merchandises increased people ‘s life criterions. However, this convenient stuff is non environment friendly. The most important ground is most of the plastics are non-biodegradable. They can last for a long clip in the geological environment. In add-on, the traditional intervention for fictile waste such as landfill and incineration is a threaten for people ‘s wellness and the environment. How to cover with fictile waste is a challenge for sustainable development. Recycling is a good manner of work outing the job. Scientists and applied scientists have developed a new attack to alter the waste into roads. Using plastic in route building is non new. For a long clip, people use PVC or HDPE to fabricate pipes in route building. However, utilizing fictile waste as natural stuff for route building is a different technique but surveies have shown this technique has great possible and can convey many benefits. An initial survey that conducted in 1997 to prove for strength and lastingness of roads from fictile wastes proved that â€Å" the lastingness of roads laid with fictile waste mix is found to be better than the conventional 1s. † [ 2 ] The overall procedure of edifice plastic waste roads includes two parts, explicitly the first portion is â€Å" readying which includes segregation, cleansing, shredding, and aggregation. The 2nd portion is field test † . [ 8 ] At foremost, the fictile waste such as bags and bottles are separated and cleaned. Then, the plastic wastes are shredded into little pieces or pulverize signifier. After roll uping, the on-size plastic waste pulverization will be added into the hot sum which is kept at 170AA °C. After the chopped plastic waste are aa‚ ¬Aâ€Å"softened and coated over the sum, aa‚ ¬A? [ 8 ] the hot bitumen is added and should be good assorted. Then, this hot mixture is ready for being laid on the route. The laying procedure is similar to the manner pitch roads are laid. This engineering has many advantages. The usage of plastic waste for route building can non merely cut down the demand for bitumen and increase the strength and public presentation of the roads, but besides protect the environment every bit good as create extra employment chances. Besides, utilizing fictile waste for route building can cut down the demand of bitumen and besides cut down the cost of puting the roads.Literature Review

Motion to suppress qrant or denial

â€Å"Search and seizure law is drawn primarily from the Fourth Amendment, which has been called the most ambiguous of the 10 amendments that make up the Bill of Rights. â€Å" (McWhirter, 1994, pg 1)The extent to which police may stop and frisk suspicious people who are in public and may be armed and dangerous has been of issue in many cases, (e.g. Terry v. Ohio.)   The defendant was convicted of carrying a concealed weapon.   The court ruled that police may stop and frisk such people without probable cause if the police have a reasonable suspicion that the people pose a threat to public safety.The opinion of the Court., â€Å"This case presents serious questions concerning the role of the Fourth Amendment in the confrontation on the street between the citizen and the policeman investigating suspicious circumstances,† (McWhirter, 1994, pg 60).   However in our case involving the possession of an illegal substance, the seizure was not a follow up to a search incident o f a lawful arrest.â€Å"Constitutional flaws in the methods used to arrest, search, and interrogate may be uncovered, and the defense attorney can also establish a basis for a motion to suppress and therefore bar crucial evidence from a subsequent trial.† (Bamberger 1972, PG 119)The â€Å"War on Drugs† has led to the development of aggressive or innovative, depending on your point of view, police tactics.   The Supreme Court has developed three broad categorizations addressing the â€Å"encounters† between citizens and police.   Overall intent is to protect the right of the citizens to be secure against unreasonable searches and seizures.   â€Å"The Constitution does not permit police officers, without probable cause or reasonable suspicion, to restrain the liberty of American citizens.† (Terry v. Ohio, 392 U.S. 1, 19 n. 16 (1968.)Granted in a police department, law enforcement officials must simultaneously respond to a myriad of situations. An off icer may enter the residence to find no burglar or any other person and numerous marijuana plants belonging to the absent homeowner.   As in either of these cases, happen stance yields an illegal product.Generally, officers must make their initial warrant-less entry into the home or commercial building immediately after realizing an emergency is at hand. Under some circumstances though, courts have allowed police to delay their initial entry. â€Å"In these cases, police may be facing either an ongoing emergency, such as a kidnapping, or gathering facts to determine whether assistance is truly needed, such as in a missing persons case. If there is a reasonable explanation for the officer's delay, the entry, even though delayed, will most likely be construed as lawful under the emergency exception.† (10th Cir. 1994) (9th Cir. 1986)Sam Wardlow, a â€Å"middle-aged African-American male,† was standing in front of a building holding a bag†¦he ran before an arrest wa s made and a gun was confiscated. â€Å"Should running from police in â€Å"high crime areas† be viewed differently from running from police in â€Å"low crime areas†? If so, are there various shades of Fourth Amendment protections throughout the country, depending upon which neighborhood you live in?† (Slade, 1999, pg. 86)An additional indirect case that correlates the two â€Å"passenger† example, a defendant's motions to suppress confiscated drugs, State v. Kaluna, was granted on the ground that it had been illegally seized. The state supreme court affirmed this suppression order.   Following an arrest for robbery, â€Å"the defendant was told to strip for a search. She then reached into her brassiere and pulled out a piece of folded tissue. Handing it to the matron, she claimed that this was all that she had. The matron unfolded the tissue and found a barbiturate. â€Å"(Friedelbaum, 1988, pg 134)District court judge Santiago Campos granted motion to suppress (U.S. v. Zapata (1992, 1993) the physical evidence and statements. This ruling exemplifies the two â€Å"passenger† cases fact for fact.   The initial encounter between the passengers and the narcotics agent was â€Å"an involuntary and nonconsensual seizure† in violation of the Fourth Amendment. â€Å"In a public compartment on an Amtrak train with his wife and infant son†¦DEA Special Agent boarded the train†¦ identified himself as a police officer, blocked Zapata's egress from his seat, and asked if he could search Zapata's bags, Zapata seemed to agree. Zapata stood up, took down the bags, and opened them†¦several kilograms of cocaine.†Ã‚   (Renteln, 2004, pg 91)For the press, it is one of the most difficult situations, a hearing on a motion to suppress evidence.   â€Å"If the report of a confession reaches them, trial delays are almost certain. If the defense asks for a change of venue the judge will be put under additional s train, particularly if he decides to go ahead with the jury selection process.† (Gerald, 1983 pg. 51)Reference(s)Darien A. McWhirter, Publication Year: 1994. Search,Seizure and Privacy.Contributors: Publisher: Oryx Press. Place of Publication: Phoenix. Page Number: 1.Darien A. McWhirter. Publication Year: 1994. Search,Seizure and Privacy. Contributors: TERRY v. OHIO, MR. CHIEF JUSTICE WARREN, Publisher: Oryx Press. Place of Publication: Phoenix.. Page Number: 60.Richard Bamberger, Publication Year: 1972, Justice Is theCrime: Pretrial Delay in Felony Cases. Contributors: – Lewis Katz – author, Lawrence Litwin – author. Publisher: Press of Case Western Reserve University. Place of Publication:Cleveland, OH.. Page Number: 119.Florida v. Bostick, 1968 Washington, 151 F.3d at 1357(citing 501 U.S. 429, 439 (1991); Terry v. Ohio, 392 U.S. 1, 19 n. 16 ( (112.) Washington, 151 F.3d at 1357.(656) See United States v. Bute, 43 F. 3d 531, 537-39 (10thCir. 1994)stressi ng importance of â€Å"immediacy† requirement).(657) See, e.g., U.S. v. Echegoyen 799 F.2d 1271 (9th Cir.1986) (court upheld warrantless entry under exigent circumstances despite the fact that officers were on the premises for approximately two and one-half to three hours before they entered the home).David C. Slade, Publication Date: December 1999, Run! It'sthe Cops!: Police Protector or Enemy in High Crime Neighborhoods. Contributors: – author. Magazine Title: World and I. Volume: 14. Issue: 12.. Page Number: 86. COPYRIGHT 1999 News World Communications, Inc.; COPYRIGHT 2004 Gale GroupStanley H. Friedelbaum, Publication Year: 1988, HumanRights in the States: New Directions in Constitutional Policymaking. Contributors: – editor. Publisher: Greenwood Press. Place of Publication: New York.. Page Number: 134.Alison Dundes Renteln, Publication Year: 2004, The CulturalDefense. Publisher: Oxford University Press. Place of Publication: New York.. Page Number: 91.J. Ed ward Gerald, Publication Year: 1983 News of Crime: courts and Press in Conflict. Contributors: – author.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Publisher: Greenwood Press. Place of Publication: Westport, CT.. Page Number: 51.

Alexander Graham Bell essays

Alexander Graham Bell essays Alexander Graham Bell was a man of great importance. He was a scottish-born inventor and educator, best known for his invention of the telephone. He invented not just the telephone but he organized and took part in inventing other things. He worked with many great people. Alexander would not start to work on the telephone until later on in his life. He was only 27 years old when he worked out the principle of transmitting speech electrically, and was 29 when his basic telephone patent was granted in 1876. Named after his grandfather Alexander Bell who also studied speech, Alexander Graham Bell was born a on March 3, 1847, in Edinburgh, Scotland. Alexander would soon get his name, Graham, from a friend of the family and relatives. He was one of three boys. He was born to Elisa Symonds, who was an artist and an excellent musician, and Alexander Melville Bell, who taught deaf-mute people to speak and he also wrote textbooks on speech. His father also invented "Visible Speech" or what we know today as sign language. Alexander Graham would soon take into the same skills as his father and grandfather. Bell and his two brothers assisted their father in demonstrating Visible Speech to public crowds. Graham enrolled at a school for boys, as a student teacher at Weston House, where he taught music and speech. After a year of studying at Weston, he became a full-time teacher at the University of Edinburgh. He used Visible Speech to teach a class of deaf children at the University of London, where he also studied. The idea of "telegraphing" speech came from a book he read on acoustics by Herman von Helmholtz, a German physicist, in which described experiments in combining the notes of electrically driven tuning forks to make sounds. Just reading the book , started gained the attention of Bell, who wanted to know more about electricity. Graham started helping his father in London in 1869. While in London Graham studied in the anatomy of ...

Sima de los Huesos, a Key to Human Evolution

Sima de los Huesos, a Key to Human Evolution The Sima de los Huesos (Pit of Bones in Spanish and typically abbreviated as SH) is a lower Paleolithic site, one of several important sections of the Cueva Mayor-Cueva del Silo cave system of the Sierra de Atapuerca in north-central Spain. With a total of at least 28 individual hominid fossils now firmly dated to 430,000 years old, SH is the largest and oldest collection of human remains yet discovered. Site Context The bone pit at Sima de los Huesos is at the bottom of the cave, beneath an abrupt vertical shaft measuring between 2-4 meters (6.5-13 feet) in diameter, and located about .5 kilometers (~1/3 of a mile) in from the Cueva Mayor entrance. That shaft extends downward approximately 13 m (42.5 ft), ending just above the Rampa (Ramp), a 9 m (30 ft) long linear chamber inclined about 32 degrees. At the foot of that ramp is deposit called the Sima de los Huesos, a smoothly oblong chamber measuring 8x4 m (26x13 ft) with irregular ceiling heights between 1-2 m (3-6.5 ft). In the roof of the eastern side of the SH chamber is another vertical shaft, which extends upwards some 5 m (16 ft) to where it is blocked by cave collapse. Human and Animal Bones The sites archaeological deposits include a bone-bearing breccia, mixed with many large fallen blocks of limestone and mud deposits. The bones are mainly composed of at least 166 Middle Pleistocene cave bears (Ursus deningeri) and at least 28 individual humans, represented by more than 6,500 bone fragments including over 500 teeth alone. Other identified animals in the pit include extinct forms of Panthera leo (lion), Felis silvestris (wildcat), Canis lupus (grey wolf), Vulpes vulpes (red fox), and Lynx pardina splaea (Pardel lynx). Relatively few of the animal and human bones are articulated; some of the bones have tooth marks from where carnivores have chewed on them. The current interpretation of how the site came to be is that all the animals and humans fell into the pit from a higher chamber and were trapped and unable to get out. The stratigraphy and layout of the bone deposit suggest  the humans were somehow deposited in the cave before the bears and other carnivores. It is also possible- given the large amount of mud in the pit- that all the bones arrived in this low place in the cave through a series of mudflows. A third and quite controversial hypothesis is that the accumulation of human remains might be the result of mortuary practices (see the discussion of Carbonell and Mosquera below). The Humans A central question for the SH site has been and continues to be who were they? Were they Neanderthal, Denisovan, Early Modern Human, some mixture we havent yet recognized? With the fossil remains of 28 individuals who all lived and died about 430,000 years ago, the SH site has the potential to teach us a great deal about human evolution and how these three populations intersected in the past. Comparisons of nine human skulls and numerous cranial fragments representing at least 13 individuals were first reported in 1997 (Arsuaga et a.). A large variety in cranial capacity and other characteristics were detailed in the publications, but in 1997, the site was thought to be about 300,000 years old, and these scholars concluded that the Sima de los Huesos population was evolutionarily related to Neanderthals as a sister group, and could best fit into the then-refined species of Homo heidelbergensis. That theory was supported by results from a somewhat controversial method redating the site to 530,000 years ago (Bischoff and colleagues, see details below). But in 2012, paleontologist Chris Stringer argued that the 530,000-year-old dates were too old, and, based on morphological attributes, the SH fossils represented an archaic form of Neanderthal, rather than H. heidelbergensis. The latest data (Arsuago et al 2014) answers some of Stringers hesitations. Mitochondrial DNA at SH Research on the cave bear bones reported by Dabney and colleagues revealed that, astonishingly, mitochondrial DNA had been preserved at the site, much older than any other found to date anywhere. Additional investigations on the human remains from SH reported by Meyer and colleagues  redated the site to closer to 400,000 years ago. These studies also supply the surprising notion that the SH population shares some DNA with the  Denisovans, rather than the Neanderthals they look like (and, of course, we dont really know what a Denisovan looks like yet). Arsuaga and colleagues reported a study of 17 complete skulls from SH, agreeing with Stringer that, because of numerous Neanderthal-like characteristics of the crania and mandibles, the population does not fit the  H. heidelbergensis  classification. But the population is, according to the authors, significantly different from other groups such as those at Ceprano and  Arago  caves, and from other Neanderthals, and Arsuaga and colleagues now argue that a separate taxon should be considered for the SH fossils. Sima de los Huesos is now dated to 430,000 years ago, and that places it close to the age predicted for when the split in hominid species creating the Neanderthal and Denisovan lineages occurred. The SH fossils are thus central to the investigations concerning how that might have happened, and what our evolutionary history might be. Sima de los Huesos, a Purposeful Burial Mortality profiles (Bermudez de Castro and colleagues) of the SH population show a high representation of adolescents and prime-age adults  and a low percentage of adults between 20 and 40 years of age. Only one individual was under 10 at the time of death, and none were over 40-45 years old. Thats confusing, because, while 50% of the bones were gnaw-marked, they were in fairly good condition: statistically, say the scholars, there should be more children. Carbonell and Mosquera (2006) argued that Sima de los Huesos represents a purposeful burial, based partly on the recovery of a single quartzite  Acheulean handaxe  (Mode 2) and the complete lack of lithic waste or other habitation waste at all. If they are correct, and they are currently in the minority, Sima de los Huesos would be the earliest example of purposeful human burials known to date, by ~200,000 years or so. Evidence suggesting that at least one of the individuals in the pit died as a result of interpersonal violence was reported in 2015 (Sala et al. 2015). Cranium 17 has multiple impact fractures which occurred near the moment of death, and scholars believe this individual was dead at the time s/he was dropped into the shaft. Sala et al. argue that placing cadavers into the pit was indeed a social practice of the community.   Dating Sima de lost Huesos Uranium-series and Electron Spin Resonance dating of the human fossils reported in 1997 indicated a minimum age of about 200,000 and a probable age of greater than 300,000 years ago, which roughly matched the age of the mammals. In 2007, Bischoff and colleagues reported that a high-precision thermal-ionization mass spectrometry (TIMS) analysis defines the minimum of deposits age as 530,000 years ago. This date led researchers to postulate that the SH hominids were at the beginning of the  Neanderthal  evolutionary lineage, rather than a contemporary, related sister group. However, in 2012, paleontologist Chris Stringer argued that, based on morphological attributes, the SH fossils represent an archaic form of Neanderthal, rather than  H. heidelbergensis, and that the 530,000-year-old date is too old. In 2014, excavators Arsuaga et al reported new dates from a suite of different dating techniques, including Uranium series (U-series) dating of speleothems, thermally transferred  optically stimulated luminescence  (TT-OSL) and post-infrared stimulated luminescence (pIR-IR) dating of sedimentary quartz and feldspar grains, electron spin resonance (ESR) dating of sedimentary quartz, combined ESR/U-series dating of fossil teeth, paleomagnetic analysis of sediments, and biostratigraphy. Dates from most of these techniques clustered around 430,000 years ago. Archaeology The first human fossils were discovered in 1976, by T. Torres, and the first excavations within this unit were conducted by the Sierra de Atapuerca Pleistocene site group under the direction of E. Aguirre. In 1990, this program was undertaken by J. L. Arsuaga, J. M. Bermudez de Castro, and E. Carbonell. Sources Arsuaga JL, Martà ­nez I, Gracia A, Carretero JM, Lorenzo C, Garcà ­a N, and Ortega AI. 1997.  Sima de los Huesos (Sierra de Atapuerca, Spain). The site.  Journal of Human Evolution  33(2–3):109-127. Arsuaga JL, Martà ­nez, Gracia A, and Lorenzo C. 1997a.  The Sima de los Huesos crania (Sierra de Atapuerca, Spain). A comparative study.  Journal of Human Evolution  33(2–3):219-281. Arsuaga JL, Martà ­nez I, Arnold LJ, Aranburu A, Gracia-Tà ©llez A, Sharp WD, Quam RM, Falguà ¨res C, Pantoja-Pà ©rez A, Bischoff JL et al. . 2014.  Neandertal roots: Cranial and chronological evidence from Sima de los Huesos.  Science  344(6190):1358-1363. doi: 10.1126/science.1253958 Bermà ºdez de Castro JM, Martinà ³n-Torres M, Lozano M, Sarmiento S, and Muelo A. 2004.  Paleodemography of the Atapuerca-Sima de los Huesos Hominin Sample: A revision and new appropaches to the paleodemongraphy of the European Middle Pleistocene population.  Journal of Anthropological Research  60(1):5-26. Bischoff JL, Fitzpatrick JA, Leà ³n L, Arsuaga JL, Falgueres C, Bahain JJ, and Bullen T. 1997.  Geology and preliminary dating of the hominid-bearing sedimentary fill of the Sima de los Huesos Chamber, Cueva Mayor of the Sierra de Atapuerca, Burgos, Spain.  Journal of Human Evolution  33(2–3):129-154. Bischoff JL, Williams RW, Rosenbauer RJ, Aramburu A, Arsuaga JL, Garcà ­a N, and Cuenca-Bescà ³s G. 2007.  High-resolution U-series dates from the Sima de  Ã‚  Journal of Archaeological Science  34(5):763-770.los  Huesos hominids yields : implications for the evolution of the early Neanderthal lineage. Carbonell E, and Mosquera M. 2006.  The emergence of  a  symbolic   Comptes Rendus Palevol  5(1–2):155-160.behaviour: the  sepulchral pit of  Sima de  los  Huesos, Sierra de Atapuerca, Burgos, Spain. Carretero J-M, Rodrà ­guez L, Garcà ­a-Gonzlez R, Arsuaga J-L, Gà ³mez-Olivencia A, Lorenzo C, Bonmatà ­ A, Gracia A, Martà ­nez I, and Quam R. 2012.  Stature estimation from complete long bones in the Middle Pleistocene humans from the Sima de  los  Huesos, Sierra de Atapuerca (Spain).  Journal of Human Evolution  62(2):242-255. Dabney J, Knapp M, Glocke I, Gansauge M-T, Weihmann A, Nickel B, Valdiosera C, Garcà ­a N, Pbo S, Arsuaga J-L et al. 2013.  Complete mitochondrial genome sequence of a Middle Pleistocene cave bear reconstructed from ultrashort DNA fragments.  Proceedings of the National Academy of Sciences  110(39):15758-15763. doi: 10.1073/pnas.1314445110 Garcà ­a N, and Arsuaga JL. 2011.  The Sima de  Ã‚  Quaternary Science Reviews  30(11-12):1413-1419.los  Huesos (Burgos, northern Spain): palaeoenvironment and habitats of Homo heidelbergensis during the Middle Pleistocene. Garcà ­a N, Arsuaga JL, and Torres T. 1997.  The carnivore remains from the Sima de  Ã‚  Journal of Human Evolution  33(2–3):155-174.los  Huesos Middle Pleistocene site (Sierra de Atapuerca, Spain). Gracia-Tà ©llez A, Arsuaga J-L, Martà ­nez I, Martà ­n-Francà ©s L, Martinà ³n-Torres M, Bermà ºdez de Castro J-M, Bonmatà ­ A, and Lira J. 2013.  Orofacial pathology in Homo heidelbergensis: The case of Skull 5 from the Sima de los Huesos site (Atapuerca, Spain).  Quaternary International  295:83-93. Hublin J-J. 2014.  How to build a Neandertal.  Science  344(6190):1338-1339. doi: 10.1126/science.1255554 Martinà ³n-Torres M, Bermà ºdez de Castro JM, Gà ³mez-Robles A, Prado-Simà ³n L, and Arsuaga JL. 2012.  Morphological description and comparison of the dental remains from Atapuerca-Sima de los Huesos site (Spain).  Journal of Human Evolution  62(1):7-58. Meyer, Matthias. A mitochondrial genome sequence of a hominin from Sima de los Huesos. Nature volume 505, Qiaomei Fu, Ayinuer Aximu-Petri, et al., Springer Nature Publishing AG, January 16, 2014. Ortega AI, Benito-Calvo A, Pà ©rez-Gonzlez A, Martà ­n-Merino MA, Pà ©rez-Martà ­nez R, Parà ©s JM, Aramburu A, Arsuaga JL, Bermà ºdez de Castro JM, and Carbonell E. 2013.  Evolution of multilevel caves in the Sierra de Atapuerca (Burgos, Spain) and its relation to human occupation.  Geomorphology  196:122-137. Sala N, Arsuaga JL, Pantoja-Pà ©rez A, Pablos A, Martà ­nez I, Quam RM, Gà ³mez-Olivencia A, Bermà ºdez de Castro JM, and Carbonell E. 2015.  Lethal Interpersonal Violence in the Middle Pleistocene.  PLoS ONE  10(5):e0126589. Stringer C. 2012.  The status of Homo heidelbergensis (Schoetensack 1908).  Evolutionary Anthropology: Issues, News, and Reviews  21(3):101-107.

Source Encounter Assignment Example | Topics and Well Written Essays - 500 words

Source Encounter - Assignment Example Summary: The article brings to the limelight what happens in the night clubs behind the knowledge of the people and the conduct of the club owners when dealing with the ladies who are lured to work in the clubs. The famous Manhattan Club which is a hot spot in New York is put under view with its owner, Mark Birnbaum being accused of sexually harassing and molesting the female employees in his club. This comes to the limelight after four bartenders who worked at the Tenjune and its sister club Simyone lounge accused the owner of using his position as the boss in the enterprise to solicit sexual favors from the unwilling employees. They go further to call him a sex predator for his unruly act. Though his lawyer denies the charges on the basis that the employees are still working in the enterprises as they have been doing over the years it is evident that such claims could be valid looking at the author’s experiences from a different club. About the Author: Scott shifrel is a Daily News Staff writer. He handles topics from various fields and does critical analysis before posting his results on the web and also on their print version. He has written other interesting articles such as ‘Same Old, Same Old for Musician suing for Age Bias’ among others. His articles range from legal to sociology and through his well-articulated use of words and knowledge of the contemporary society he is able to address various topics in an exemplary way. About the Audience: The article is published in the Daily News which is an informative paper. The audience targeted varies and there is no age group that is targeted. However, this article is meant to open the eyes of the ladies who may end up falling prey to such owners who employ them as a way of soliciting sexual favors from them. This has been a controversial topic in the recent past and he addresses it in an