Methods an der Universität Für Bodenkultur Wien | Karteikarten & Zusammenfassungen

Lernmaterialien für Methods an der Universität für Bodenkultur Wien

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TESTE DEIN WISSEN
Difference between Microscopy and Sprectroscopy
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TESTE DEIN WISSEN
Microscopy: obtaining an image or Information about material that cannot be observed with the naked eye.
Sprectroscopy: Observing the reacion of a material to a certain influence, often only measured with a spectrum output.
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TESTE DEIN WISSEN
What is a Tuple?
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TESTE DEIN WISSEN
A ordered list of numbers or values, as a list defining a position in a 1,2 or 3 Dimensional space. Those lists are inter-referrable. 1-tuple: 2,5 ; 2-tuple: maybe a vector 2 , 5 ; 3-tuple: 5 , 7, 2 (position in 3 dimensional space) Order matters!!! Need not be know, can also be "x1 + x2 ,  7" (2-Tuple)
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TESTE DEIN WISSEN
What is a funciton at the most abstract level?
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TESTE DEIN WISSEN
A single mathematical expression, relating any hypothetical real number of one dimension to a determinable number of the other dimension.
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TESTE DEIN WISSEN
Principle and use of microarrays
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TESTE DEIN WISSEN
Microarrays are used to compare gene expression in 2 genetically idential cells. This difference in expression is usually due to different conditions around (no O2-> diff. genes expressed). Do to this, the relation between mRNA quantity and expression is used. The mRNA is extracted and then a RT PCR is conducted. Here, the 2 different cells get different fluorescent labels by adding labeled nucleotides. The old stand of mRNA is now degraded, and we have 2 tubes with 2 sscDNA libraries. Both cDNA libraries are then mixed and put on a microarray chip, containing all genes of the organism fixed, ready to hybridise (join single, compl. cDNA strand). The added sscDNA hybridises. Now the fluorescens is measured and compared. some genes are now green, others red. -> conclusions about expression.
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TESTE DEIN WISSEN
What is a carthesian plane?
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TESTE DEIN WISSEN
It is comparable to a graph with one x and one y axis.
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TESTE DEIN WISSEN
What are matrices used for, roughly?
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TESTE DEIN WISSEN
... are matrices used to display/describe linear equation systems in a "simplified" manner.
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TESTE DEIN WISSEN
What does a 2x2 Matrix tell us for linear transformation? What does it do to a vector?
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TESTE DEIN WISSEN
The Matrix tells us, where the 01 and the 10 vector move to. the first row shows where the first goes and so on. Thereby, a 2x2 Matrix includes a sort of a function (in this case linear) that changes the vectors orientation.
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TESTE DEIN WISSEN
A matrix with a colum number of 1 (n=1)and a row number of 3 (m=3), how are the indices called for the objects and how is it different to a vector?
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TESTE DEIN WISSEN
The indices for the objects (from top to bottom) are a11 a12, a13. The matrix is also called a column matrix and is math. identical to a vector
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TESTE DEIN WISSEN
How are Matrices usually named / highlighted?
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TESTE DEIN WISSEN
They are usually referred to with bold or underlined capital letters.
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TESTE DEIN WISSEN
What is a scalar?
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TESTE DEIN WISSEN
A scalar is an element, a number in a field, often used to describe a vector. The scalar is a real number. (3, for example)
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TESTE DEIN WISSEN
What is a matrix?
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TESTE DEIN WISSEN
It is a, usually rectangular, arrangement of objects, (sometimes numbers), that features m rows and n colums.
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TESTE DEIN WISSEN
How can a vector be visualised an arrow with only 2 knowns?
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TESTE DEIN WISSEN
By showing it in normal position. The arrow is drawn from the source (0/0) to the defined spot.
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Q:
Difference between Microscopy and Sprectroscopy
A:
Microscopy: obtaining an image or Information about material that cannot be observed with the naked eye.
Sprectroscopy: Observing the reacion of a material to a certain influence, often only measured with a spectrum output.
Q:
What is a Tuple?
A:
A ordered list of numbers or values, as a list defining a position in a 1,2 or 3 Dimensional space. Those lists are inter-referrable. 1-tuple: 2,5 ; 2-tuple: maybe a vector 2 , 5 ; 3-tuple: 5 , 7, 2 (position in 3 dimensional space) Order matters!!! Need not be know, can also be "x1 + x2 ,  7" (2-Tuple)
Q:
What is a funciton at the most abstract level?
A:
A single mathematical expression, relating any hypothetical real number of one dimension to a determinable number of the other dimension.
Q:
Principle and use of microarrays
A:
Microarrays are used to compare gene expression in 2 genetically idential cells. This difference in expression is usually due to different conditions around (no O2-> diff. genes expressed). Do to this, the relation between mRNA quantity and expression is used. The mRNA is extracted and then a RT PCR is conducted. Here, the 2 different cells get different fluorescent labels by adding labeled nucleotides. The old stand of mRNA is now degraded, and we have 2 tubes with 2 sscDNA libraries. Both cDNA libraries are then mixed and put on a microarray chip, containing all genes of the organism fixed, ready to hybridise (join single, compl. cDNA strand). The added sscDNA hybridises. Now the fluorescens is measured and compared. some genes are now green, others red. -> conclusions about expression.
Q:
What is a carthesian plane?
A:
It is comparable to a graph with one x and one y axis.
Mehr Karteikarten anzeigen
Q:
What are matrices used for, roughly?
A:
... are matrices used to display/describe linear equation systems in a "simplified" manner.
Q:
What does a 2x2 Matrix tell us for linear transformation? What does it do to a vector?
A:
The Matrix tells us, where the 01 and the 10 vector move to. the first row shows where the first goes and so on. Thereby, a 2x2 Matrix includes a sort of a function (in this case linear) that changes the vectors orientation.
Q:
A matrix with a colum number of 1 (n=1)and a row number of 3 (m=3), how are the indices called for the objects and how is it different to a vector?
A:
The indices for the objects (from top to bottom) are a11 a12, a13. The matrix is also called a column matrix and is math. identical to a vector
Q:
How are Matrices usually named / highlighted?
A:
They are usually referred to with bold or underlined capital letters.
Q:
What is a scalar?
A:
A scalar is an element, a number in a field, often used to describe a vector. The scalar is a real number. (3, for example)
Q:
What is a matrix?
A:
It is a, usually rectangular, arrangement of objects, (sometimes numbers), that features m rows and n colums.
Q:
How can a vector be visualised an arrow with only 2 knowns?
A:
By showing it in normal position. The arrow is drawn from the source (0/0) to the defined spot.
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