In your biology class, your final grade is based on several things .pdf

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In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 15% of your total grade, each major test is worth 20.5%, and the final exam is worth 44%. Compute the weighted average for the following scores: 93 on the lab, 66 on the first major test, 74 on the second major test, and 90 on the final exam. (Enter your answer to one decimal place. Solution (93)*(.15)+(66)*.205+(74)*.205+(90)*.44=82.3 Sum of scores * weight = weighted average.

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In your own words, what were the core intellectual, political, and artistic characteristics of the Italian Renaissance (c. 1350-1550 CE)? Describe two figures that seem to represent especially important Renaissance characteristics. Explain your reasoning. 250 words Solution The Renaissance is the reentrance into the world of that secular, inquiring, self- reliant spirit which characterized the life and culture of classical antiquity. This is simply to say that under the influence of the intellectual revival the men of Western Europe came to think and feel, to look upon life and the outer world, as did the men of ancient Greece and Rome; and this again is merely to say that they ceased to think and feel as mediaeval men and began to think and feel as modern men. Just as the Reformation went forth from Germany and the Political Revolution from France, so did the Renaissance go forth from Italy. And this was not an accident. The Renaissance had its real beginnings in Italy for the reason that all those agencies which were slowly transforming the mediaeval into the modern world were here more active and effective in their workings than elsewhere. City life was more perfectly developed in Italy than in the other countries of Western Europe. In the air of the great Italian city-republics there was nourished a strong, self-reliant, secular, myriad-sided life. It was a political, intellectual, and artistic life like that of the cities of ancient Greece. Florence, for example, became a second Athens. The cities themselves were, in a very exact sense, fragments of the old Empire.The influence which these reminders of a glorious past exerted upon sensitive souls is well illustrated by the biographies of such men as Boccaccio and Petrarch. Petrarch is best known to most as the writer of Italian sonnets, but his significance for general history is due almost wholly to his relation to the revival of classic learning in Italy. Petrarch was the first and greatest representative of the humanistic phase of the Italian Renaissance. He was the first scholar of the mediaeval time who fully realized and appreciated the supreme excellence and beauty of the classical literature and its value as a means of culture. Boccaccio did much to spread and to deepen the enthusiasm for antiquity that Petrarch had awakened. He industriously collected and copied ancient manuscripts and thus greatly promoted classical scholarship in Italy..

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In this task, I want you to verify that the phase response of Fourier transform is much more important than the magnitude response in case of images 1- Upload two images into Matlab of the same size. 2- Find the Fourier transform of these two images. (the function that you need to use is “y=fft2(im)” 3- Reconstruct the images using their corresponding Fourier transforms and verify that the Fourier transformation is perfectly invertable. (The function that you need to use is ifft2(y). 4- The Fourier transforms of the images are complex numbers, so you need to find their magnitude and phase. (The functions that you need to use are “abs(y)” for magnitude and “unwrap(angle(y))” for phase.). 5- Use the magnitude response of image 1 and the phase response of image 2 and reconstruct the image applying inverse Fourier transform. (The function that you need to use is ifft2(rcos+jrsin ), where r is the magnitude and is the phase). 6- Use the magnitude response of image 2 and the phase response of image 1 and reconstruct the image applying inverse Fourier transform. 7- Comment on the results. Solution Fourier transform :- The Fourier transform decomposes a function of time (a signal) into the frequencies that make it up, similarly to how a musical chord can be expressed as the amplitude (or loudness) of its constituent notes. The Fourier transform of a function of time itself is a complex-valued function of frequency, whose absolute value represents the amount of that frequency present in the original function, and whose complex argument is the phase offset of the basic sinusoid in that frequency. The Fourier transform is called the frequency domain representation of the original signal. The term Fourier transform refers to both the frequency domain representation and the mathematical operation that associates the frequency domain representation to a function of time. The Fourier transform is not limited to functions of time, but in order to have a unified language, the domain of the original function is commonly referred to as the time domain. For many functions of practical interest one can define an operation that reverses this: the inverse Fourier transformation, also called Fourier synthesis, of a frequency domain representation combines the contributions of all the different frequencies to recover the original function of time. Linear operations performed in one domain (time or frequency) have corresponding operations in the other domain, which are sometimes easier to perform. The operation of differentiation in the time domain corresponds to multiplication by the frequency,[note 1] so some differential equations are easier to analyze in the frequency domain. Also, convolution in the time domain corresponds to ordinary multiplication in the frequency domain. Concretely, this means that any linear time-invariant system, such as a filter applied to a signal, can be expressed relatively simply as an operation on frequencies.[note 2] After performing .

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