What Are Hela Cells And How Were They First Obtained

What are HeLa cells and how were they first obtained? HeLa cells are the first immortal human cells. These cells came from Henrietta Lacks’ cervix before she died. 2) Why are HeLa cells unusual? HeLa cells â€Å"reproduce an entire generation every 24 hours.† These cells have been around for many years. 3) Discuss 2-3 scientific studies that have utilized HeLa cells. Although Henrietta’s cells came from her tumor when she suffered from cancer, her cells have helped create different medicines for many diseases. HeLa cells have developed medications for Influenza, Herpes, Leukemia, Hemophilia and Parkinson’s disease. Her cells have also been used in studies referring to lactose digestion, human longevity, sexually transmitted diseases and more. 4) Why are HeLa cells controversial? Doctors had removed the cells without permission from the Lacks family or Henrietta herself. They were propagated and more than 20 years later Henrietta’s family lear ned about this situation. 5) Who was Henrietta Lacks? Henrietta Lacks was a poor, African American farmer, a mother of 5, and wife who suffered from cervical cancer. Her cells have helped change the world of medicine. 6) What is the feeling of her family about the use of HeLa cells? The Lacks family was not informed that Henrietta’s cells were being used in research. They learned this 25 years later and theyShow MoreRelatedResearch Papet1558 Words   |  7 Pages(Henrietta Lacks)HeLa Cell Lines Medical researchers use laboratory-grown human cells to learn the intricacies of how cells work and test theories about the causes and treatment of diseases. The cell lines they need are â€Å"immortal†Ã¢â‚¬â€they can grow indefinitely, be frozen for decades, divided into different batches and shared among scientists. In 1951, a scientist at Johns Hopkins Hospital in Baltimore, Maryland, created the first immortal human cell line with a tissue sample taken from a young blackRead MoreThe Immortal Life Of Henrietta Lacks By Rebecca Skloot Essay1611 Words   |  7 PagesWhen I first began reading the book The Immortal Life of Henrietta Lacks, written by Rebecca Skloot, I expected it to only be about the science behind HeLa cells, which I didn’t find particularly exciting. Except, I was proven very wrong. I have not been able to put this book down, for Rebecca Skloot is a remarkable writer who entices the reader with the emotional story of Henrietta Lacks and her family. It is true that there were quite a few scientific studies included within this book, but theyRead MoreThe Invention Of The Polio Vaccine920 Words   |  4 PagesWe all have been exposed, healed, or touched by the cells of a woman whose name we never knew. Her name was Henrietta Lacks. She was an African-American woman who died of an aggressive form of cervical cancer at Johns Hopkins in 1951. Her cells were taken without her consent nor the consent of her family members after her death and used for research from the effects of cosmetics to the formation of the polio vaccine. The cells, tagged as â€Å"HeLa† by the scientist who received them at Johns HopkinsRead MoreThe Immortal Life Of Henrietta Lacks1573 Words   |  7 Pagesstory about the revolutionary HeLa cancer cells is told through the lives of the Lacks family and the multiple scientists and doctors that were part of one of the greatest breakthroughs of medical research in the twentieth century. The tale of the in famous and immortal HeLa cells was not just a scientific one, but one that involved struggle, confusion, ethical transgressions, and legal issues. Skloot writes about the life of Henrietta Lacks and her immortal cancer cells as well as her own researchRead MorePsy305 Ethical Principles1361 Words   |  6 Pages(Loretta) Pleasant, born in August of 1920 in Roanoke, VA, was an African American woman who was raised by her grandfather in a small cabin on a plantation. At the age of 14, she gave birth to her first child, a son, followed by a daughter four years later. She married the father of her children, her first cousin David Lacks, shortly thereafter. After having moved to Maryland for work, the couple had three other children. The last, Joseph, was born in November of 1950, and two months later, in JanuaryRead MoreImportance Of Consent And Its Effects On Medical History931 Words   |  4 Pagesthe mid-1900’s that anyone started really investigating how medical researche r obtained their materials thus their unethical practices were discovered. Doctors took patient’s samples for research as â€Å"payment† for the treatment without asking for consent. It has been proposed that everyone should donate tissue samples out of obligation to allow scientist the chance to make further advancements, and the patients will be compensated based on how significant the breakthrough is. David Korn, vice provostRead MoreThe Immortal Life Of Henrietta Lacks1883 Words   |  8 Pagessprung of immortal HeLa cells’ exploitation. The research involving HeLa cells has changed the landscape of medical study, leading to scientific and medical breakthroughs that continues today. HeLa cells were vital for developing the polio vaccine; uncovered secrets of breast cancer and leukemia; helped lead to important advances in vitro fertilization, cloning, genetic hybrids, gene mapping in virology, scientific standards, live cell transport, for profit distributi on of cells, space biology, salmonellaRead MoreWe Are Enjoying Your Day Off1509 Words   |  7 Pagessay I am not looking forward to the clean up as snow predictions are well beyond what was originally anticipated. I know many of you are using this time to prepare and reflect for another day of teaching. Today, I am thinking about our students and content exposure and would like to share. Please don t take this as a statement that we are not doing something, rather take it as a statement of getting better at what we do. Each day, Dr. Bongo shares a black history fact that many of you are sharingRead MoreStem Cell Research603 Words   |  2 PagesStem cell research is a controversial topic and this paper will talk about both sides of the controversy. The controversy started back in 1998 when the first successful culturing of human embryonic stem cells was performed. The research surrounding stem cells has been the center of a huge debate mainly because of ethics and morals. A stem cell is an immature cell (not a full human yet) that has the potential to become specialized into different types of cells throughout the body. There areRead MoreReflective Paper On Henrietta Lacks3537 Words   |  15 Pagesstory behind the HeLa cells. This book was written by Rebecca Skloot who got interested in HeLa cells while sitting in her biology class. The book is not just about HeLa cells, it is a great material to see the life of the HeLa cell’s donor, Henrietta Lacks, and the HeLa cells impact on modern medicine as well as the Lacks family and their life long struggles to make peace with the existence of those cells (Skloot, 2011). Ethics  is the study of right and wrong. It explores what one might do when

Issues in Multi Cultural Education Free Essays

To date, only a handful of studies have empirically investigated the relationship between school locations and their constituencies. Taller. E. We will write a custom essay sample on Issues in Multi Cultural Education or any similar topic only for you Order Now (2001). The students that are living in the low income areas of Richmond are more diverse than the ones that are living in the counties that surround the city. For instance, Houghton High School located in one of the low income areas of Richmond County has a Ninety Two Percent minority rate among there attending students. U. S. News and world report (2014). Fifty Six percent of the student population at Houghton High is economically disadvantaged. U. S. News and world report. (2014). Over half of the students that attend this high school receives free lunch. REV News. (2014). In 2013 while hosting the third annual white house science fair President Obama spoke on how one of his main focuses as president has been how to create an all-hands-on- deck approach to the STEM curriculum. The White House. (2014). This curriculum includes science, technology, engineering, and math. The White House. (2014). He also mentions how â€Å"We need to make this a priority to train an army of new teachers in these subject areas, and to make sure that all of us as a country are lifting up these subjects for the respect that they deserve. † The White House (2014). Right outside the Richmond County school district still located in Richmond State is Henries County. Located about 20 Minutes away from Houghton High is Deep Run High School which is part of the Henries County public school district.. Deep Run High School in contrast to Houghton High has a twenty percent minority rate. SKI 2 Guides (2014). The Majority of the students that attend Deep Run High School are white. KEY Guides (2014). Only about two percent of the students who attend this school participate in the free lunch program. KEY Guides (2014). These students also rank eighty nine percent in proficiency in math. U. S. News. (2014). The annual per pupil expenditure in Henries County Public Schools is 9,650 per pupil in 2013. Henries County Public Schools. (2014). The annual per pupil expenditure in Richmond County Public Schools is 11,218. Richmond County Public Schools. (2014). This proves that it the inequities do not lie in the shortage of money being provided by the local and federal funds. Individuals from families that are still together completed, on average, more years of school and are also more likely to graduate from high school, attend college, and complete college compared to students raised in blended or ingle-parent families. Family Facts (2014). Their parents have more involvement in their school activities and have higher expectations for them. Family Facts. 2014). The answer then to closing the gap on students’ performance in school has to start with a program to inspire low income families to stay together and build a strong support system for one another to be successful. The Strengthening Families Program (SSP) is a nationally and internationally recognized parenting and family strengthening program for high-risk and regular families. Strengthening Families Program. (2014). This program teac hes parents and students with broken home valuable skills that can increase their chances for success. It also has been shown to reduce problem behaviors, delinquency, and alcohol and drug abuse in children and to improve social competencies and school performance. Strengthening Families Program. (2014). Past research reported that teenage males from minority groups often engage more in high-risk behaviors at school such as weapon possession, gang involvement, and fighting than any other group. Marsh, T. Y. , Cornell, D. G. (2001). The Strengthening families program’s take home DVD had ten thirty minute sessions for parents and students to watch together. These DVD’s can be viewed at the discretion of the family preferably once a week. The Strengthening Families Program is an excellent tool to use to help aid in situations where families are in low income single parent or poverty stricken situations. Grappling with the issues of equity and excellence has become ever more complex solutions seem more and more remote as the divides between socioeconomic groups become greater and greater, and ethnic diversity of the student population continues to present ever-increasing stress on the educational system. Callahan, C. M. (2003). Because of inequalities students that attend school in Henries, Chester field and surrounding counties are receiving a higher level of education than the students that attend school in certain parts of Richmond. Whether or not they are income based, minority based, or Just lack of good parenting. The fact still remains that there is a dish connect between students that are being raised in such a close proximity. How can people on one side of the tracks sit around and watch students on the other side of the tracts do so poorly in school? This problem is deeply rooted in the community as well as in the individual family unit. Through the implementation of people that care and some programs that could aid in recovery one day we will all be able to stand hand and hand and succeed as a whole. How to cite Issues in Multi Cultural Education, Papers

Physics Review Essay Example For Students

Physics Review Essay The pressure applied on one part of container with fluid is transmitted equally in all directions. V Pressure on one side is equal to the pressure on the other side of hydraulic press and lift Pascal Law: The pressure exerted anywhere in a mass of confined liquid is transmitted undiminished in all directions throughout the liquid. Equation for Pascals Principle: AY AY Problems: 1. The large piston in a hydraulic lift has an area of 250 com. What force must be applied to the small piston with an area of 25 com in order to raise a car of mass 1 500 xv 2. A trash compactor pushes down with a force of 500 N on a 3 com input piston, causing a force of 30,000 N to crush the trash. What is the area of the output piston that crushes the trash? 3. When the button of a trash compactor is pushed, a force of 350 N pushes down on a 1. 3 com input piston, creating a force of 22,076 N to crush the trash. What is the area of the piston that crushes the trash? 4. Mr.. Sharron is raising a keg car on his hydraulic lift. If the area of the input piston is CACM, while the area of the output piston is 630 com, what force must be exerted on the input piston to lift the car? II. Buoyancy: apparent loss of weight of objects net upward force exerted by the fluid causes floatation > when FEB. is greater than the constant throughout the same fluid increases when density of fluid increases weight of the object equal to the difference of weight of object in air and weight of object in liquid Problem: 1. The weight of the object is 3 N. It is placed in a tan of water. The water exerts 5 N net upward force on the object. Will the object float? 2. A block of metal weighs 5 N when suspended in air. When placed in water, it weighs 3 N. How much buoyant force acts on the metal? Will the object float? Ill. Archimedes Principle: States that the buoyant force acting on the object submerged in a certain fluid is equal to the weight of the displaced fluid Volume of displaced fluid = volume of the object Immersed: part of the object is in fluid Submerged: total body of the object is in fluid Examples: 1. The buoyant force acted upon by the fluid is 14 N. What is the value of the weight of the object? What is the value of the weight of the displaced fluid? 2. When a block of wood is immersed in a basin of water, the weight of the displaced water is 2 N. How much is the buoyant force acting on the wood? The volume of the metal bar is 1000 com. How much volume of water will be displaced by bar? AN. How much is the buoyant force acting on the wood? IV. Principle of Floatation: A floating object displaces a weight of fluid equal to its own weight Object floats when its density is less than the density of the fluid where it its immersed. Example: bamboo> 300 keg / mm f loats in water (-?1000 keg / mm ) v Object sinks when its density is greater than the density of the fluid where it its bar of gold> 19 300 keg/ mm sinks in water (-?1000 keg / mm ) Three Rules: 1. Fluid>Abject = FLOAT 2. Fluid metals> Insulation 2. Convection Transmission of heat slows the transfer of heat, not prevent ; Hot air is less dense, it rises. Cold air is denser, it goes down. ; Tendencies of hot air to rise and of cool air to sink > Heaters = near the floor; air-conditioning outlets = near the ceiling maximum efficiency. 3. Radiation Transfer of heat through electromagnetic waves No contact needed All objects emit radiation depending on their temperature. The higher the temperature, the greater the amount of energy emitted. ; All substances are capable of absorbing radiation. E cube continuously emitting radiant energy melts if an incandescent lamp is focused on it > absorbing a greater amount of heat than it is emitting ; good absorbers are good emitters; poor absorbers are poor emitters ; White or shiny objects reflect most radiant energy and are bad absorbers. Dark, matter, or black objects are good absorbers and poor reflectors. Internal Energy the total energy possessed by a body sum of all the energies possessed by all of the molecules in an object > potential energy due to forces acting on the molecules and due to their separation XIII. Phase Changes: 2. .u5fb7c8eab122868b7a8feb27c424b07c , .u5fb7c8eab122868b7a8feb27c424b07c .postImageUrl , .u5fb7c8eab122868b7a8feb27c424b07c .centered-text-area { min-height: 80px; position: relative; } .u5fb7c8eab122868b7a8feb27c424b07c , .u5fb7c8eab122868b7a8feb27c424b07c:hover , .u5fb7c8eab122868b7a8feb27c424b07c:visited , .u5fb7c8eab122868b7a8feb27c424b07c:active { border:0!important; } .u5fb7c8eab122868b7a8feb27c424b07c .clearfix:after { content: ""; display: table; clear: both; } .u5fb7c8eab122868b7a8feb27c424b07c { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u5fb7c8eab122868b7a8feb27c424b07c:active , .u5fb7c8eab122868b7a8feb27c424b07c:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u5fb7c8eab122868b7a8feb27c424b07c .centered-text-area { width: 100%; position: relative ; } .u5fb7c8eab122868b7a8feb27c424b07c .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u5fb7c8eab122868b7a8feb27c424b07c .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u5fb7c8eab122868b7a8feb27c424b07c .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u5fb7c8eab122868b7a8feb27c424b07c:hover .ctaButton { background-color: #34495E!important; } .u5fb7c8eab122868b7a8feb27c424b07c .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u5fb7c8eab122868b7a8feb27c424b07c .u5fb7c8eab122868b7a8feb27c424b07c-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u5fb7c8eab122868b7a8feb27c424b07c:after { content: ""; display: block; clear: both; } READ: Religion Essay ExampleCondensation -Change of state from gas to liquid 3. Evaporation -Change of state from liquid to gas 4. Melting -Change of state from solid to liquid 5. Freezing/solidification -Change of state from liquid to solid Vaporization ; Change of state from liquid to gas ; Evaporation vaporization takes place at the surface of liquid ; Boiling below the surface of a liquid 1) Heat from the sun warms the surface of the water. 2) Some particles of water change state, from a liquid to a gas, due to energy (or heat) from the sun. ) These particles, called water vapor, then rise into the air. XIV. Temperature: v hotness or coldness of a body average value of the kinetic energy of the molecules v property of a body >tells the direction of heat flow v can be measured using a thermometer v instrument for measuring temperature; has thermal sensor and calibrations; v Has different scales Fahrenheit, Celsius and Kelvin v Galileo credited for inventing the first thermometer Temperature Scales: Fahrenheit first created scale among the three v based on freezing and boiling point of water 2 OF: freezing point of water 212 OF: boiling point of water Unit : OF Celsius/Centigrade CO (pure water ) freezing point 100 co (pure water ) boiling point unit: co Kelvin v Introduced the concept of absolute zero >lowest possible temperature >substance has absolutely no energy to give up gases) Unit: K (Kelvin) (WHY? Kinetic theory of 1. The weatherman reports that today will reach a high of OFF. Your friend from Sweden asks what is the temperature in degrees Celsius. What value would you report to your friend? 2. Your parents order an oven from England. The temperature dial on the new oven is calibrated in degrees Celsius. If you need to bake a cake at OFF in the new oven, at what temperature should you set the dial? 3. A German automobiles engine temperature gauge reads in Celsius, not Fahrenheit. The engine temperature should not rise above about OFF. What is the corresponding Celsius temperature on this cars gauge? 4. Your grandmother in Ireland sends you her favorite cookie recipe. Her instructions say to bake the cookies at 190. ICC. To what Fahrenheit temperature would you set the oven to bake the cookies? END I=P/A log 10 (1/10)