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A recurrent model of orientation maps with simple and complex cells
A recurrent model of orientation maps with simple and complex cells

... PO map for directions from 180 to 360 degrees, looking at the inhibitory cell population (the data looks similar for other cell types). Black contours represent stable bump regions, or equivalently, the regions that exceed a prescribed threshold (90 spikes) for all directions. The PO map from the bu ...
Adult stem cells trial for Heart Disease
Adult stem cells trial for Heart Disease

... Different types of stem cells have been injected into patients with heart failure as well as those who are having a heart attack to see whether the damage caused by these conditions can be reversed. Adult stem cells have been shown to have the ability to develop into new heart muscle cells and cells ...
File - Groby Bio Page
File - Groby Bio Page

... carbon dioxide and waste substances from the cells for removal. • Formed by blood plasma, provides a constant environment for the cells it surrounds. ...
Unit 2 - Cells and Systems Learning Pack (Science In Action 8
Unit 2 - Cells and Systems Learning Pack (Science In Action 8

... materials that organisms need to grow, develop, and reproduce. All of the processes that occur inside the organism to sustain its life are called the organism’s metabolism. Responding To The Environment A stimulus is anything that causes a response in an organism. The organism’s reaction to this sti ...
PROJECT PROPOSAL for applicants for Ph.D. fellowships
PROJECT PROPOSAL for applicants for Ph.D. fellowships

... Plant cells have noticeable developmental plasticity. One of the most interesting examples of this plasticity is somatic embryogenesis during which differentiated somatic plant cells regain totipotency and develop into embryos and after plants. In order to be able to initiate the embryogenic program ...
Action Potentials
Action Potentials

... channels open (positive feedback) • This in turn rapidly increases Na+ levels inside the cell • This continues until ALL Na+ voltage-gated channels are open • The influx of Na+ causes inside of membrane to become much more positive (+40mV) than the outside • The K+ voltage-gated channels are shut st ...
Introduction to Anatomy & Physiology
Introduction to Anatomy & Physiology

... • Chemical level – made up of atoms • Cellular level – made up of molecules • Tissue level – made up of similar groups of cells that have a common function • Organ level – made up of two or more tissue types to perform a specific function • System level – made up of a group of organs to accomplish a ...
excretion
excretion

... helps maintain homeostasis Thermoregulation is –  the process by which animals maintain an internal temperature within a tolerable range ! requires the ability to balance heat gained from and lost to the environment –  a form of homeostasis. "  An animal maintain homeostasis by controlling how much ...
File
File

... Oxidation and reduction are paired chemical reactions in which electrons are transferred from one substance to another in a predictable way. The control and applications of oxidation and reduction reactions have significant implications for industry, health and safety, and the environment. ...
Photosynthesis and Respiration powerpoint
Photosynthesis and Respiration powerpoint

... 5. Animalia  Multicellular eukaryotes, Heterotrophs that range in size ...
CELL PARTS Chapter 4 - Ms. Chambers' Biology
CELL PARTS Chapter 4 - Ms. Chambers' Biology

... 10/4 Warmup ...
The Circulatory System – Blood and the Heart
The Circulatory System – Blood and the Heart

...  In the fetus, blood cells are produced by the bone marrow, liver, spleen, and thymus  In an adult, the bone marrow and thymus continue to produce blood cells o The spleen continues to produce lymphocytes  Red blood cells, originate as bone marrow stem cells called pluripotent stem cells (which h ...
Bovine Serum Albumin, pH 7.0
Bovine Serum Albumin, pH 7.0

... ethanol precipitation. Serum albumin was obtained as the fifth fraction in the Cohn's method. It is often used in biochemistry as a protein concentration standard. Albumin is a multifunctional protein that plays many important physiological functions in cell culture. Some of them are mentioned below ...
CELL SIGNALLING
CELL SIGNALLING

... • Where they are degraded by enzymes Involved in various biological activities • Contraction of smooth muscles • Aggregation of platelets • Pain and inflammatory responses It has been observed that in case of tissue damage or any other chemical signal the rate of eicosanoid synthesis increases • Inf ...
Document
Document

... located? What charge do they have? What is their mass? Know how to read a periodic table. How many elements are there? How many are needed by life? What is CHNOPS? What is an atomic number mean? Mass number? Atomic weight? What are isotopes? How are radioactive isotopes used? How do you make an atom ...
Illumina | Bio-Rad Single-Cell RNA Sequencing Solution
Illumina | Bio-Rad Single-Cell RNA Sequencing Solution

... Single-cell sequencing data can be instantly transferred, stored, and analyzed securely in BaseSpace Sequence Hub, the Illumina cloudbased genomics computing environment. BaseSpace Sequence Hub provides a large collection of BaseSpace Apps. Commercial and open-source tools support a range of common ...
The promises of stem cells: stem cell therapy for movement disorders
The promises of stem cells: stem cell therapy for movement disorders

... self-renew indefinitely, and generate all the cell types of the organ from which they originate, potentially regenerating the entire organ from a few cells. Numerous studies using expanded and/or induced bone marrow-derived mesenchymal stem cells have been reported for animal models and yet only thre ...
Cancer Stem Cells: Controversial or Just Misunderstood?
Cancer Stem Cells: Controversial or Just Misunderstood?

... If tumors do not maintain a hierarchical development structure, then it may be more important to focus on those stemlike properties most relevant to tumor propagation, such as self-renewal, drug resistance, etc. Second, adequate experimental systems must be established, and fully vetted, in order to ...
Animalia NOTES
Animalia NOTES

... Excreted by aquatic organisms directly into water via gills or other organs UREA- Less toxic than ammonia; requires less water to dilute excreted by amphibians, sharks, some bony fish, mammals (humans) URIC ACID- LEAST TOXIC; requires least amount of water to dilute excreted by birds, insects, repti ...
Animalia NOTES
Animalia NOTES

... Excreted by aquatic organisms directly into water via gills or other organs UREA- Less toxic than ammonia; requires less water to dilute excreted by amphibians, sharks, some bony fish, mammals (humans) URIC ACID- LEAST TOXIC; requires least amount of water to dilute excreted by birds, insects, repti ...
“Methods in Histology” Major types of Light Microscopy Microscopy
“Methods in Histology” Major types of Light Microscopy Microscopy

... RNA or cDNA probe to localize cells containing specific mRNAs • Methods: lightly fixed cells are made permeable, then the labeled probe is added, allowed to hybridize with complementary mRNAs in cells with them, and then those cells are visualized microscopically by ARG or IHC ...
Plant Cell: Overview
Plant Cell: Overview

... formation. Antiactin drugs do disrupt some key processes such as cell extension and tip growth, but the molecular interactions have yet to be characterized. ...
Helping cells get rid of toxic waste in Parkinson`s
Helping cells get rid of toxic waste in Parkinson`s

... We know that Parkin is responsible for tagging waste so it can bagged up and taken to the waste disposal. By tagging proteins, Parkin helps to speed up autophagy. Changes in the Parkin gene can mean the protein doesn’t work properly, which causes autophagy to slow down and toxic waste to build up. O ...
PACT Review for 7th Grade Science
PACT Review for 7th Grade Science

... A group of specialized cells that work together to perform the same function. There are four basic types of tissue in the human body:  Nerve tissue—carries impulses back and forth to the brain from the body  Muscle tissue—contracts and shortens, making body parts move  Epithelial tissue—covers th ...
Unit 8 - EarthLink
Unit 8 - EarthLink

... – Aged erythrocytes  fragile  rupture  release of hemoglobin, “ghost cells”, taken up by macrophages  hemoglobin broken down into heme (iron) goes to liver; porphyrin  liver converts into bilirubin  excreted as bile – Nutritional influences on RBC production • Vit B12 – RBC maturation, nervous ...
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Organ-on-a-chip

An organ-on-a-chip (OC) is a multi-channel 3-D microfluidic cell culture chip that simulates the activities, mechanics and physiological response of entire organs and organ systems. It constitutes the subject matter of significant biomedical engineering research, more precisely in bio-MEMS. The convergence of labs-on-chips (LOCs) and cell biology has permitted the study of human physiology in an organ-specific context, introducing a novel model of in vitro multicellular human organisms. One day, they will perhaps abolish the need for animals in drug development and toxin testing.Although multiple publications claim to have translated organ functions onto this interface, the movement towards this microfluidic application is still in its infancy. Organs-on-chips will vary in design and approach between different researchers. As such, validation and optimization of these systems will likely be a long process. Organs that have been simulated by microfluidic devices include the heart, the lung, kidney, artery, bone, cartilage, skin and more.Nevertheless, building valid artificial organs requires not only a precise cellular manipulation, but a detailed understanding of the human body’s fundamental intricate response to any event. A common concern with organs-on-chips lies in the isolation of organs during testing. ""If you don’t use as close to the total physiological system that you can, you’re likely to run into troubles"" says William Haseltine, founder of Rockville, Maryland. Microfabrication, microelectronics and microfluidics offer the prospect of modeling sophisticated in vitro physiological responses under accurately simulated conditions.
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