Fetal tissue research is an important aspect of medical research. Fetal tissues can be obtained from many places‚ including hospitals‚ tissue banks‚ and abortion clinics. Conducting fetal tissue research allows us to further our education concerning diseases‚ vaccinations‚ and birth defects. Despite the importance of fetal tissue research‚ it raises many controversies regarding ethical issues. Many people believe that fetal tissue research should be illegal because it goes against their morals
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When it comes to animal research I feel there are to major dilemmas that arise that play a major role in how we determine the research methods as ethical or not: (1) do certain non-human species have changed consciousness and (2) to what extent do the animals suffer or experience death and how that influences their overall “well-being.” I pose these to issues because as rational‚ logical creatures we are capable of answering these two questions for ourselves and discuss our thoughts and feelings
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making hydrogen fuel cell vehicles an everyday fact of life‚ with several test models set to debut over the next few years. Hydrogen fuel cells to power vehicles are desirable‚ experts say‚ because hydrogen is a renewable fuel that can be used to create electricity to run cars. A chemical reaction between oxygen and hydrogen produces the electric power‚ and when pure hydrogen is used‚ the only emission from the tailpipe is harmless water vapor. Many people are asking‚ “Why fuel cells?” The gasoline engine
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economy have been thriving‚ jobs in science‚ Technology‚ engineering‚ and math (STEM) have not had a major growth within the 21st Century. As a result‚ the lack of growth in STEM has had a major impact on the economy. Because of the high level of thinking and problem-solving skills needed to understand STEM subjects‚ the people who work in these fields end up having a high income. Another factor that contributes to the STEM are the number of men that pursue these careers. Over the past few years‚ many
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problem: Multiple factors contribute to the underrepresentation of women and girls in the STEM fields. The factors can be categorized into following areas: Social‚ cultural‚ environmental‚ and bias operating at unconscious levels. Girls and women are socially labeled to believe they have a fixed amount of intelligence. Girls and women more likely to believe the stereotype‚ lose confidence‚ and disengage from STEM as a potential career when they encounter difficulties in their course work. There exists
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offspring. He also discovered that traits pass down through families in different patterns. Sickle cell‚ which is an inherited disease‚ is mainly found in those of African descent. Mendel’s research ultimately helped lead to the discovery and understanding of the HBS allele‚ the connection of malaria to sickle cell now and in future generations‚ and the new technology that helps diagnose and treat sickle cell. In 1910‚ a black man named Walter Clement Noel‚ went to Dr. James B. Herrick‚ complaining of
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BAsic ReseARch PAPeR BAsic ReseARch PAPeR Autophagy 9:5‚ 1–16; May 2013; © 2013 Landes Bioscience Inhibition of the autophagic flux by salinomycin in breast cancer stem-like/progenitor cells interferes with their maintenance Wen Yue‚1‚2‚† Ahmed hamaï‚1‚2‚† Giovanni Tonelli‚1‚2 chantal Bauvy‚1‚2 Valérie Nicolas‚2‚3 hugo Tharinger‚2‚3 Patrice codogno1‚2 and Maryam Mehrpour1‚2‚* 1 † These authors contributed equally to this work. Keywords: breast cancer stem-like/progenitor cell‚ salinomycin
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This paper is about how the plant cells and solar cells are similar to each other as well as how they are different to one another. In addition this paper explains how the laws of thermodynamics apply to each of the plant and solar cells system. Plant Cells and Solar Cells Photosynthesis is the process of producing and releasing oxygen in the air. It needs sunlight‚ carbon dioxide and
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and animal cells have several differences and similarities. For example‚ animal cells do not have a cell wall or chloroplasts but plant cells do. Animal cells are round and irregular in shape while plant cells have fixed‚ rectangular shapes. Animal Cell Plant Cell Cell wall Absent Present (formed of cellulose) Shape Round (irregular shape) Rectangular (fixed shape) Vacuole One or more small vacuoles (much smaller than plant cells). One‚ large central vacuole taking up 90% of cell volume.
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Introduction The current method of cell expansion using T25 flasks for human embryonic stem cells (hESCs) have been proven to be extremely time and space consuming‚ labour intensive and difficult for scale-up (Minimal of 200 T25 flasks needed). It is estimated 2.8x108 - 5.6x108 undifferentiated hESCs are required by the end of the expansion stage for the process to work‚ as at least 5x107 cells of well differentiated post-mitotic Nrl+/Crx+ precursors are needed for transplant (Maclaren et al‚ 2006)
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