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Lottie Peppers

How to (seriously) read a scientific paper | Science | AAAS - 0 views

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    Adam Ruben's tongue-in-cheek column about the common difficulties and frustrations of reading a scientific paper broadly resonated among Science Careers readers. Many of you have come to us asking for more (and more serious) advice on how to make sense of the scientific literature, so we've asked a dozen scientists at different career stages and in a broad range of fields to tell us how they do it. Although it is clear that reading scientific papers becomes easier with experience, the stumbling blocks are real, and it is up to each scientist to identify and apply the techniques that work best for them. The responses have been edited for clarity and brevity.
Lottie Peppers

Which of These is True? Validity and Ethics in Scientific Experimentation - National Ce... - 0 views

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    Many biology courses are designed to develop student understanding and application of the scientific method, but few seriously examine the various ethical questions associated with scientific research. This interdisciplinary case study presents three experiments and asks not only if they are scientifically valid but whether they were ethically performed.  The experiments examine the psychology of love, a cause of breast cancer, and how the immune system functions in the presence of cancer. Based on their opinions of the validity and ethics of each experiment, students are asked to conclude which of the experiments were actually conducted by scientists and which are fictional. Students should already be familiar with the scientific method, but information on the Georgetown Mantra and Nuremberg Code.is included. The case could be modified for use in non-majors and majors classes.  The format of the case challenges students of any background to use information from both science and ethics to see how the differing approaches of scientist and ethicist can complement and strengthen each other.
Lottie Peppers

Asking Scientific Questions - 0 views

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    The activity begins with students observing different organisms or phenomena and developing questions based on their observations. They then sort their questions into those that can and cannot be answered using the methods of science. Students practice writing scientific questions, designing experiments to address scientific questions, developing questions that involve cause and effect, and understanding the importance of cause and effect questions in scientific research. At the end of the activity, students determine the research questions being asked from reading journal article titles and parts of a published paper or other reported results. Several possible extension activities are provided for continuing the investigation and research of phenomena.
Lottie Peppers

Helicobacter pylori and the Bacterial Theory of Ulcers - National Center for Case Study... - 1 views

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    This case is an account of the events that led Drs. Robin Warren and Barry Marshall to the bacterial theory of ulcers. The two physicians refused to accept the standard explanations for what they had observed and instead developed an alternative hypothesis, saving countless patients from unnecessary pain and suffering. Along the way they transformed the way the medical community viewed peptic ulcer disease. The case shows the importance of curiosity, serendipity, and tenacity in scientific inquiry; how science is built upon the work of others; how assumptions can cloud people's views, leaving them closed to new ideas; and how scientific "truth" can and does change when faced with new data and new interpretations. It is appropriate for use in any course at the high school or undergraduate level that teaches students about the scientific method and/or the sociology, nature, and history of science.
Lottie Peppers

Stem Cell Research | NWABR.ORG - 0 views

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    This 5 lesson unit, which was designed by teachers in conjunction with scientists, ethicists, and curriculum developers, explores the scientific and ethical issues involved in stem cell research. The unit begins with an exploration of planaria as a model organism for stem cell research. Next, students identify stages in the development of human embryos and compare the types and potency of stem cells. Students learn about a variety of techniques used for obtaining stem cells and the scientific and ethical implications of those techniques. While exploring the ethics of stem cell research, students will develop an awareness of the many shades of gray that exist among positions of stakeholders in the debate. Students will be provided an opportunity to become familiar with policies and regulations for stem cell research that are currently in place in the United States, the issues regarding private and public funding, and the implications for treatment of disease and advancement of scientific knowledge. The unit culminates with students developing a position on embryonic stem cell research through the use of a Decision-Making Framework. Two culminating assessments are offered: In the individual assessment, students write a letter to the President or the President's Bioethics Committee describing their position and recommendations; In the group assessment, students develop a proposal for NIH funding to research treatment for a chosen disease using either embryonic or 'adult' stem cells.
Lottie Peppers

Analyzing Clinical Literature - National Center for Case Study Teaching in Science - 0 views

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    "Reading and understanding scientific literature can be a daunting task for students in introductory science courses. This decision/dilemma case study helps ease them into the process by using a short scientific article with a simple experimental design that compares two types of ACL (anterior cruciate ligament) surgery, autograft and allograft. The case tells the story of Todd, a martial artist who recently tore his ACL in competition. With the help of the article, Todd discusses the potential surgical options provided by his doctor with his friend, Sam, a medical student. The case has the added value of demonstrating how one can use scientific literature to make informed healthcare decisions based on clinical evidence. Please note that the required article (Kane et al., Knee Surgery, Sports Traumatology, Arthroscopy 24(11): 3627-33) is not provided with this case; prior to assigning this material, instructors should confirm that students can access the article, since access may vary by institution."
Lottie Peppers

What's the difference between a scientific law and theory? - Matt Anticole | TED-Ed - 0 views

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    5:11 video Chat with a friend about an established scientific theory, and she might reply, "Well, that's just a theory." But a conversation about an established scientific law rarely ends with "Well, that's just a law." Why is that? What is the difference between a theory and a law... and is one "better"? Matt Anticole shows why science needs both laws and theories to understand the whole picture.
Lottie Peppers

Vaccines, Social Media, and the Public Health - National Center for Case Study Teaching... - 0 views

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    While the "vaccine controversy" has made headlines since the late 1990s, the emergence and popularity of social media has created a public opinion space bursting with pseudoscience, debatable claims and anecdotes regarding the value and importance of childhood vaccines. Because college students get a good deal of news and information from these resources, it is imperative that they distinguish science from pseudoscience and do not perpetuate rumor and falsehoods.  In this case study, written for lower division non-science majors, students will view videos on the scientific method and a mock talk show, analyze data, and scrutinize social media posts.  One of the takeaway points is that if a post/blog/interview identifies a victim, villain, and hero then the student should suspect a story grounded in belief involving pseudoscience.  Following completion of the case, students will hopefully come to conclusions about vaccines based more in the realm of science rather than pseudoscience and continue to apply the scientific method when evaluating social media posts on other scientific topics.
Lottie Peppers

Comparing the Engineering Design Process and the Scientific Method - 0 views

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    While scientists study how nature works, engineers create new things, such as products, websites, environments, and experiences. Because engineers and scientists have different objectives, they follow different processes in their work. Scientists perform experiments using the scientific method; whereas, engineers follow the creativity-based engineering design process.
Lottie Peppers

Is the Data Dirty or Clean? - National Center for Case Study Teaching in Science - 0 views

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    This case study challenges students to differentiate between anecdotal evidence and science-based evidence related to human health. The case uses a "flipped" approach in which students watch two preparatory videos prior to attending class. The first video defines anecdotal evidence while the second characterizes the different categories of scientific studies that generate evidence that is not anecdotal. Students watch the videos, analyze scenarios for anecdotal evidence, and think about what types of evidence they use to make health-related decisions. When students meet in class, they work in groups to compare and contrast these different categories of scientific studies and classify actual research studies aided by a dichotomous key for distinguishing between different types of studies related to human health. Primarily designed for students in introductory general biology courses, the activity could also be useful for lower division nutrition, physiology, or non-major biology courses or any course where students need to differentiate between science and pseudoscience.
Lottie Peppers

Mini Cases on Choosing Appropriate Statistical Tests for Ecological Data - National Cen... - 0 views

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    This set of mini cases on the ecology of eastern cottontail rabbits is designed to give students practical experience using statistics in a scientific context. Given a dataset and experimental design, groups of students are asked to play the part of a wildlife management researcher to determine the results for each study. Students practice the scientific process and gain experience making hypotheses and predictions, choosing an appropriate statistical test, interpreting and displaying results, and presenting data to others. Students choose between four basic, commonly used, statistical tests (t-test, one-way ANOVA, linear regression, and Chi-square test), and justify their choices. This activity was developed for undergraduate level students and is applicable to biology courses, particularly those dealing with ecology or management. The case is designed for student groups, but could be modified into clicker questions or individual assignments.
Lottie Peppers

About | Science Documentaries - 0 views

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    Here you will find a collection of the best scientific documentaries available online. Focus here is on quality above quantity. There is an endless heap of documentaries that are "scientific" but in fact are not, instead filled with metaphysical ideas, UFOs, bio energies and other meta-sciences. You will not find those here. Other thing is the quantity of information in every documentary itself, often being very low but instead full of special effects and dramatic monologue. Hopefully you won't find those here either.
Lottie Peppers

15 Answers to Creationist Nonsense - Scientific American - 0 views

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    The following list rebuts some of the most common "scientific" arguments raised against evolution. It also directs readers to further sources for information and explains why creation science has no place in the classroom.
Lottie Peppers

Watch Information Flow between Neighboring Cells [Video and Animation] - Scientific Ame... - 0 views

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    In their May 2015 Scientific American article "Cellular Small Talk," Dale W. Laird, Paul D. Lampe and Ross G. Johnson report on recent discoveries showing that the disruption of cellular structures called gap junctions can cause various diseases.
Lottie Peppers

The science behind a more meaningful understanding of sexual orientation - 0 views

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    People who are attracted to others of the same sex develop their orientation before they are born. This is not a choice. And scientific evidence shows their parents cannot be blamed. Research proving that there is biological evidence for sexual orientation has been available since the 1980s. The links have been emphasised by new scientific research.
Lottie Peppers

The Times and Troubles of the Scientific Method - YouTube - 0 views

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    Science is working tirelessly night and day to disprove its own theories about how the universe works (or at least, that's what science thinks it's doing). Hank tells us a quick history of how we came to create and adopt the scientific method and then gives us a vision of the future of science (hint: it involves a lot more computers and a lot less pipetting).
Lottie Peppers

Cancer Immunotherapy: The Cutting Edge Gets Sharper - Scientific American - 0 views

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    Artificially boosting the body's immune response against cancer is the most exciting advance in the treatment of tumors in the past couple of years. But as the jam-packed sessions at a recent scientific conference in New York City made clear, a lot of questions remain to be answered before anyone can declare victory in the war on cancer. Among them: What is the best way to kick the immune system into action? Will immunotherapy work for all sorts of people with all kinds of cancer or just for a lucky few? Is there a way to make the treatments less dangerous or expensive?
Lottie Peppers

Making Connections - National Center for Case Study Teaching in Science (NCCSTS) - 0 views

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    "This case study introduces students to Duchenne muscular dystrophy (DMD) and its underlying genetics, cell biology, and some of the associated biochemical pathways.  DMD is an X-linked disorder characterized by progressive muscle weakness and wasting due to the absence of a protein called dystrophin, which in turn causes degeneration of skeletal and cardiac muscle. There is currently no established cure for this disease.  The case follows the progress of "Casey," an undergraduate student who has just declared her biology major and is interested in expanding her scientific understanding of the different fields of biology. The case is organized in three parts: genetics, cell biology, and biochemistry, each exploring DMD through its unique lens. Throughout the case, Casey is presented with multiple outlets of information, including class lectures, direct e-mail interaction with a professor, scientific journals and websites, from which she (and any student engaged with the case) gathers knowledge about DMD."
Lottie Peppers

Flinn At Home Science Education - 0 views

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    Flinn Scientific has launched a website with an extensive amount of resources specifically developed to help teachers, students and parents continue their science education journey - even if that learning is taking place outside the classroom or laboratory environment. Examples of some of the resources we have developed: Free video labs with related teacher and student guides to help students at home continue making progress on key science topics More than 40 free, easy and fun-to-do activities that use commonly available materials to encourage science investigation in the home Flinn's unique digital learning solutions to facilitate seamless science learning. These online solutions are the perfect way to efficiently scale curriculum in an at-home setting - also free of charge On call scientists: over the coming days, we will be releasing video based lab experiments conducted by our scientific staff and broadcast from our studio with live events. As part of each live event, we will have our full team of scientists available to answer questions from teachers and students participating online - also free of charge and highly interactive and engaging. Be sure to check out our online calendar indicating the live schedule
Lottie Peppers

Cut It Out! - National Center for Case Study Teaching in Science - 0 views

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    This directed case study was developed to introduce students to the CRISPR-Cas9 system for genome editing. CRISPR-Cas9 has made numerous headlines in both the scientific and popular press, and thus serves as an excellent model for learning current biotechnology and applying concepts from biology courses. After providing a general overview of CRISPR-Cas9, the majority of the case focuses on the clinical applications of the system as experienced by a carrier for the X-linked recessive allele underlying Duchenne Muscular Dystrophy. The case is structured so that students use a variety of popular and scientific sources (some of which may require a subscription to access-check with your institution), increasing in difficulty as they move through each part of the case. The goals are for students to learn the molecular mechanisms of CRISPR-Cas9, the benefits and limitations of the system, and the clinical applications of the technology. Open-ended questions are included to spark discussion of ethical considerations, societal impacts, and the overall implications of the technology.
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