STING Millennium: a web-based suite of programs
... to physico-chemical properties of the amino acids. The blue and red lines underneath the amino acid sequence represents the secondary structure elements (beta strands and helices respectively), according to the pdb file annotation. As the user scrolls the mouse over the sequence, information about t ...
... to physico-chemical properties of the amino acids. The blue and red lines underneath the amino acid sequence represents the secondary structure elements (beta strands and helices respectively), according to the pdb file annotation. As the user scrolls the mouse over the sequence, information about t ...
Chapter 3: Dielectric Waveguides and Optical Fibers
... The development of optical fiber technology was a watershed event in the global telecommunications and information technology revolution. Many of us today take for granted our ability to communicate on demand, much as earlier generations quickly took for granted the availability of electricity. But ...
... The development of optical fiber technology was a watershed event in the global telecommunications and information technology revolution. Many of us today take for granted our ability to communicate on demand, much as earlier generations quickly took for granted the availability of electricity. But ...
Building a Better Flat-Field: An Instrumental Telescope
... in its field of view. Brightness data can then be analyzed to reveal not only how bright an object is – its astronomical magnitude – but also whether that magnitude is changing, and by how much. Relative magnitudes between different broadband filters, each spanning a separate range of wavelengths, ca ...
... in its field of view. Brightness data can then be analyzed to reveal not only how bright an object is – its astronomical magnitude – but also whether that magnitude is changing, and by how much. Relative magnitudes between different broadband filters, each spanning a separate range of wavelengths, ca ...
(FT-IR) spectroscopy: A rapid tool for detection and analysis of
... stretching, contracting, and bending. Functional groups present in a molecule tend to absorb IR radiation in the same wavenumber range regardless of other structures in the molecule, and spectral peaks are derived from the absorption of bond vibrational energy changes in the IR region [20]. Thus the ...
... stretching, contracting, and bending. Functional groups present in a molecule tend to absorb IR radiation in the same wavenumber range regardless of other structures in the molecule, and spectral peaks are derived from the absorption of bond vibrational energy changes in the IR region [20]. Thus the ...
ASTRONOMY AND ASTROPHYSICS Properties of solar pores
... visible lines of different formation heights, Thim (1993) finds 3.3 G km;1; the empirical model of Sütterlin (1991) predicts a gradient of 2-3 G km ;1. Theoretical models as well as observations show that the diameter of a pore increases with height in the atmosphere (Simon & Weiss 1970; Zirin & Wan ...
... visible lines of different formation heights, Thim (1993) finds 3.3 G km;1; the empirical model of Sütterlin (1991) predicts a gradient of 2-3 G km ;1. Theoretical models as well as observations show that the diameter of a pore increases with height in the atmosphere (Simon & Weiss 1970; Zirin & Wan ...
1. Amino Acids (2017)
... CLASSIFICATION ACCORDING TO POLARITY OF SIDE CHAIN (R): A- Polar amino acids: in which R contains polar hydrophilic group so can forms hydrogen bond with H2O. : Have an UNEVEN distribution of electrons such as Acids and Bases In those amino acids, R may contain: 1- OH group : as in serine, threonin ...
... CLASSIFICATION ACCORDING TO POLARITY OF SIDE CHAIN (R): A- Polar amino acids: in which R contains polar hydrophilic group so can forms hydrogen bond with H2O. : Have an UNEVEN distribution of electrons such as Acids and Bases In those amino acids, R may contain: 1- OH group : as in serine, threonin ...
Dusty AGN Tori
... weak or even absent 10 µm feature, but so do some of the smooth models. On the whole the SEDs of clumpy and smooth tori are similar, but some details are different. The absorption feature seen at edge-on inclinations appears to be less deep in the clumpy models than in the smooth models, and the ave ...
... weak or even absent 10 µm feature, but so do some of the smooth models. On the whole the SEDs of clumpy and smooth tori are similar, but some details are different. The absorption feature seen at edge-on inclinations appears to be less deep in the clumpy models than in the smooth models, and the ave ...
Optical Autocorrelation using Non-Linearity in a Simple Photodiode
... The field of ultrashort sciences is one that is getting very much attention in recent years. Many fundamental biological, chemical and physical processes occur in a time scale that is much less than that we are used to in everyday life. For example, photosynthesis, protein-folding and molecular vibr ...
... The field of ultrashort sciences is one that is getting very much attention in recent years. Many fundamental biological, chemical and physical processes occur in a time scale that is much less than that we are used to in everyday life. For example, photosynthesis, protein-folding and molecular vibr ...
electromagnetic waves 18
... before the sound of the blast was heard. He concluded that the lash of light appeared instantaneously. However, he stated that we would not know whether it was instantaneous unless there was some accurate way to measure its speed. He suggested an experiment could be performed where a person with a l ...
... before the sound of the blast was heard. He concluded that the lash of light appeared instantaneously. However, he stated that we would not know whether it was instantaneous unless there was some accurate way to measure its speed. He suggested an experiment could be performed where a person with a l ...
Circular dichroism
Circular dichroism (CD) is dichroism involving circularly polarized light, i.e., the differential absorption of left- and right-handed light. Left-hand circular (LHC) and right-hand circular (RHC) polarized light represent two possible spin angular momentum states for a photon, and so circular dichroism is also referred to as dichroism for spin angular momentum. This phenomenon was discovered by Jean-Baptiste Biot, Augustin Fresnel, and Aimé Cotton in the first half of the 19th century. It is exhibited in the absorption bands of optically active chiral molecules. CD spectroscopy has a wide range of applications in many different fields. Most notably, UV CD is used to investigate the secondary structure of proteins. UV/Vis CD is used to investigate charge-transfer transitions. Near-infrared CD is used to investigate geometric and electronic structure by probing metal d→d transitions. Vibrational circular dichroism, which uses light from the infrared energy region, is used for structural studies of small organic molecules, and most recently proteins and DNA.