All of us have struggled for one or more high school courses, but studying the human brain is a completely different matter. In a typical neuroanatomy class, students are overwhelmed by a large number of terms, definitions, and brain structures (different in size, shape, and location). It takes a long time to understand all the functional and behavioral connections of the brain, and students often forget a lot of knowledge after a short-term intensive work for the exam. There is no doubt that there is a need for a more effective way to embed key knowledge (about the brain or any other discipline) into your long-term memory.
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It turns out that there is indeed a way. Educational experts have long called for technology-interactive education, and Penn State University is studying the introduction of this knowledge acquisition method into neuroanatomy. This is called Brain3M, which has received funding from the Pennsylvania Institute of Social Sciences. Through virtual and 3D printed models, as well as photos and charts, they hope to teach students about the function, anatomy, and evolutionary history of the brain.
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This is a very creative way to change the way you teach difficult concepts, both in the field of neuroanatomy and in other areas. The project was hosted by Ping Li, deputy director and psychology professor at the CyberScience Institute, and was also co-authored by Professor Victoria Braithwaite, co-director of the Center for Brain, Behavior and Cognition.
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The level of knowledge itself is roughly equivalent to the university's introductory course. “We believe that Brain3M enables learners to build 'expressions' through the integration of learners' visual, auditory, kinesthetic, and other sensory movements of learning objectives,†the developer said. “Adaptive exploration and inclusion. Knowledge can significantly improve learning outcomes, especially with regard to long-term memory performance. This should allow users to use their personal body sensations to gain knowledge, a concept supported by specific cognitive theories.
Plant extraction process
1. Select plants/herbs. No more than ancient prescriptions, prescriptions, folk herbs to find. At present, common and uncommon herbs have been studied. At present, it is mostly to increase the amount of medicinal materials to extract and separate components with low content, or to find medicinal plants that have never been studied from miao medicine, Tibetan medicine, Mongolian medicine, Africa, Latin America and other places.
2. The extraction. Solvent petroleum ether, n-hexane, cyclohexane, benzene, chloroform, ethyl acetate, n-butanol, acetone, ethanol, methanol, water (low polarity → high polarity). Daily medicine decoction effective, water and ethanol and other solvents with large polarity, such as artemisinin boiling ineffective extraction with petroleum ether and other solvents with small polarity. Common medicinal materials water/alcohol/ether to go through, separation and identification of more compounds.
3. The separation. This is the most important work. In the solution extracted from the second step, there are dozens of compounds, usually by column chromatography, which is often referred to as the column flushing. It's a lot of work, it's boring, it's low tech. A master's student might do this every day for two years. The column for separating compounds, as shown below, is as large as 2 meters high and as small as 10 centimeters. Change the solvent condition of mobile phase, change the material of column, different conditions and different separation principles of column repeatedly punching, can be separated from the monomer compound.
Herbal Medicine,Ginger Extract Powder,Hawthorn Berry Extract,Lycium Berry Fruit Extract
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