Among all the clinical indications for which radiologists, nuclear medicine physicians,
neurologists, neurosurgeons, psychiatrists (and others examining disorders of
the brain) order and read brain PET scans, demand is greatest for those pertaining
to dementia and related disorders. This demand is driven by the sheer prevalence of
those conditions, coupled with the fact that the differential diagnosis for causes of
cognitive impairment is wide and often difficult to distinguish clinically.
Rapidly changing field:
–vacuum tube - transistor - IC - VLSI (see section 1.4)
–doubling every 1.5 years: memory capacity processor speed (Due to advances in technology and organization)
•Things you‘ll be learning:
–how computers work, a basic foundation
–how to analyze their performance (or how not to!)
–issues affecting modern processors (caches, pipelines)
•Why learn this stuff?
–you want to call yourself a ―computer scientist‖
–you want to build software people use (need performance)
–you need to make a purchasing decision or offer ―expert‖ advice...
Supply Chain Management (SCM) offers the possibility of increased customer
service while minimizing costs. Before choosing what type of supply chain strategy to
pursue, a firm must first evaluate the type of supply chain(s) in which it participates. The
type of functional strategies chosen should complement the type of supply chain(s) in
which the firm is a member. Certain manufacturing and logistics strategies are more
appropriate given the characteristics of the supply chain.
Since the seminal study of Leland, Taqqu, Willinger, and Wilson , which set the groundwork for considering self-similarity an important notion in the understanding of network traffic including the modeling and analysis of network performance, an explosion of work has ensued investigating the multifaceted nature of this phenomenon.
Does democracy hurt or help economic performance? There are few questions in political economy that have attracted more attention over the years. Thinking on this subject, in one form or another, goes all the way back to Plato—who favored aristocracy to democracy, and has preoccupied many of the most fertile minds in political philosophy. More recently, with the
advent of cross-national data sources and statistical techniques, there have been numerous econometric studies investigating the relationship between political liberties and economic growth......
This book is a revised and updated edition of Asking Questions: A
Practical Guide to Questionnaire Design, first published in 1982. It
focuses on the type of question asking that social science researchers
and market researchers use in structured questionnaires or interviews.
Many of the principles of effective formalized questioning we
focus on in this book are useful in other contexts. They are useful
in informal or semistructured interviews, in administering printed
questionnaires in testing rooms, and in experimental studies involving
participant evaluations or responses....
Supervisors, managers and their co-workers seemed to be attending an
awful lot of training courses, but this didn’t seem to have the impact on ‘onthe-
job’ performance that it needed to have. In fact many managers were
disillusioned with much of the training and development activity going on.
At the time, most training programmes suffered from a lack of measurable,
clearly specified outcomes and measured results. Most training programmes
were evaluated on the ‘Did you enjoy it?’ measure, or people sat for a threehour
Distribution: Means tested payments
• At least 5 genetic evaluation test site was established to compare the performance of local trees and introduced
• writing test protocols and long-term responsibility for managing and analyzing and evaluating the assigned study
Organic expanders play an important role in the lead–acid battery. This study presents the design of an electrochemical method which evaluates the influence of some commercial expanders on the performance of the negative plate. Examination is made of different commercial expander formulations which are prepared in the laboratory under carefully controlled conditions.
Excess abdominal fat, assessed by measurement of waist circumference or waist-to-hip ratio, is independently associated with higher risk for diabetes mellitus and cardiovascular disease. Measurement of the waist circumference is a surrogate for visceral adipose tissue and should be performed in the horizontal plane above the iliac crest. Cut points that define higher risk for men and women based on ethnicity have been proposed by the International Diabetes Federation (Table 75-3).
The three restrictive-malabsorptive bypass procedures combine the elements of gastric restriction and selective malabsorption. These procedures include Roux-en-Y gastric bypass (RYGB), biliopancreatic diversion (BPD), and biliopancreatic diversion with duodenal switch (BPDDS) (Fig. 75-2). RYGB is the most commonly performed and accepted bypass procedure. It may be performed with an open incision or laparoscopically.
Application Performance Management (APM) is the name given to the
use of technology to initiate, deploy, monitor, fix, update and/or
optimize systems within an organization. Application management
software employs measurements of response times, and other
component and resource interactions, to help manage the overall
stability and usability of the software within its purview.
Carpet Clean manufactures a chemical carpet cleaner. The company was formed during the current year. As a result, there was no beginning inventory. Management is evaluating performance and inventory management issues, and desires to know both net income and ending inventory under generally accepted accounting principles (absorption costing) as well as variable costing methods. Relevant facts are as follows:
Once records are inventoried, determine the immediate and future usefulness of the
records. In general, records should be retained only as long as they serve the
immediate administrative, legal and/or fiscal purposes for which they were created.
When records no longer serve these purposes, they should be disposed of or preserved
for archival purposes, whichever is appropriate.
Automatic tools for machine translation (MT) evaluation such as BLEU are well established, but have the drawbacks that they do not perform well at the sentence level and that they presuppose manually translated reference texts. Assuming that the MT system to be evaluated can deal with both directions of a language pair, in this research we suggest to conduct automatic MT evaluation by determining the orthographic similarity between a back-translation and the original source text. This way we eliminate the need for human translated reference texts.
Fine-grained sense distinctions are one of the major obstacles to successful Word Sense Disambiguation. In this paper, we present a method for reducing the granularity of the WordNet sense inventory based on the mapping to a manually crafted dictionary encoding sense hierarchies, namely the Oxford Dictionary of English. We assess the quality of the mapping and the induced clustering, and evaluate the performance of coarse WSD systems in the Senseval-3 English all-words task.
Techniques for automatically training modules of a natural language generator have recently been proposed, but a fundamental concern is whether the quality of utterances produced with trainable components can compete with hand-crafted template-based or rulebased approaches. In this paper We experimentally evaluate a trainable sentence planner for a spoken dialogue system by eliciting subjective human judgments.
We present an empirical study of the applicability of Probabilistic Lexicalized Tree Insertion Grammars (PLTIG), a lexicalized counterpart to Probabilistic Context-Free Grammars (PCFG), to problems in stochastic naturallanguage processing. Comparing the performance of PLTIGs with non-hierarchical N-gram models and PCFGs, we show that PLTIG combines the best aspects of both, with language modeling capability comparable to N-grams, and improved parsing performance over its nonlexicalized counterpart. Furthermore, training of PLTIGs displays faster convergence than PCFGs. ...