Digital Modulation: The Basic Principles

This article presents some streamlined and intentionally oversimplified ideas about educating future communication disorders professionals to use some of the most basic principles of evidence-based practice. Working from a popular five-step approach, modifications are suggested that may make the ideas more accessible, and therefore more useful, for university faculty, other supervisors, and future professionals in speech-language pathology, audiology, and related fields.

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Empirically-Validated Strategies, Evidence-Based Practice, and Basic Principles in Communication Intervention for Learners with Developmental Disabilities

Perspectives on Augmentative and Alternative Communication ◽

10.1044/aac12.4.7 ◽

2003 ◽

Vol 12 (4) ◽

pp. 7-10 ◽

Cited By ~ 2

Author(s):

Jeff Sigafoos ◽

Erik Drasgow

Keyword(s):

Developmental Disabilities ◽

Evidence Based Practice ◽

Communication Intervention ◽

Evidence Based ◽

Basic Principles

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Generalised ENCAP-4N digital modulation technique

IEE Proceedings I Communications Speech and Vision ◽

10.1049/ip-i-2.1990.0011 ◽

1990 ◽

Vol 137 (2) ◽

pp. 78 ◽

Cited By ~ 3

Author(s):

A. Gusmão ◽

N. Esteves

Keyword(s):

Digital Modulation ◽

Modulation Technique

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Principles of Modern Radar: Basic principles

10.1049/sbra021e ◽

2010 ◽

Cited By ~ 489

Keyword(s):

Basic Principles

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Basic Ideas and Principles for Quantifying Regional Blood Flow with Nuclear Medical Techniques

Nuklearmedizin ◽

10.1055/s-0038-1629805 ◽

1996 ◽

Vol 35 (05) ◽

pp. 181-185 ◽

Cited By ~ 6

Author(s):

H. Herzog

Keyword(s):

Blood Flow ◽

Nuclear Medicine ◽

Regional Blood Flow ◽

Visual Presentation ◽

Regional Cerebral Blood ◽

Basic Principles ◽

Parametric Images ◽

Major Application ◽

Basic Ideas ◽

The Brain

SummaryThe measurement of blood flow in various organs and its visual presentation in parametric images is a major application in nuclear medicine. The purpose of this paper is to summarize the most important nuclear medicine procedures used to quantify regional blood flow. Starting with the first concepts introduced by Fick and later by Kety-Schmidt the basic principles of measuring global and regional cerebral blood are discussed and their relationships are explained. Different applications and modifications realized first in PET- and later in SPECT-studies of the brain and other organs are described. The permeability and the extraction of the different radiopharmaceuticals are considered. Finally some important instrumental implications are compared.

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