Recording Respiratory Function by X Rays: Basic Principles

Phytotherapy for Lower Respiratory Disease: Basic Principles

Traditional herbal strategies for treating lung disease are founded on supporting and tonifying the innate protective resources. This is one area where the divide between traditional and modern approaches is particularly great. There are very few modern endorsements of early treatment strategies. Modern medical science, which at first embraced such agents in the earlier part of this century, no...

Diagnostic Utility of Chest X-rays in Neonatal Respiratory Distress: Determining the Sensitivity and Specificity

Background: Chest radiography is one of the most usual diagnostic tools for respiratory distress. Objective: The purpose of this study is to assess the specificity, sensitivity and clinical value of chest radiography of neonates with respiratory distress.Patients and Methods: A descriptive- analytical study was conducted on 102 neonates that were in neonatal intensive care unit of Imam Reza and...

Resonant X-ray Diffraction: basic theoretical principles

We present the main steps governing the theory of resonant x-ray diffraction (RXD). We focus on the derivation of the anomalous scattering amplitude from perturbation theory and starting from the low-energy expansion of the Dirac Hamiltonian. We give the main ingredients of the multipolar expansion in term of electric and magnetic transitions. We also show the expansion in terms of scattering t...

SOFT X-RAYS AND EXTREME ULTRAVIOLET RADIATION Principles and Applications

Soft X-rays and Extreme Ultraviolet Radiation: Principles and.

1.1 (a) Confirm that for a photon energy h ω, with corresponding wavelength λ in vacuum, the two are related by eV nm 1239.842 ⋅ = ⋅ λ ω h Values for physical constants are given in Appendix A, page 419. (b) What wavelength in nm corresponds to photons of energy 543.1 eV? (c) What wavelengths in vacuum are associated with the K and L-absorption edges of neon, chlorine, cobalt, and ruthenium? 1....