Recently, there has been an increasing emphasis on quality in developing software (Duggan, 2004; Harter et al. 2003; Jureta et al. 2009; Prajogo & Sohal, 2006; Tarvo, 2009). The quality of a software system is widely accepted as its conformance to customer requirements (Kan et al., 1994). The interest in quality is heightened as more system failures are attributed to issues in software quality ...

Spatial asymmetry is crucial to development. One mechanism for generating asymmetry involves the localized synthesis of a key regulatory protein that diffuses away from its source, forming a spatial gradient. Although gradients are prevalent in eukaryotes, at both the tissue and intracellular levels, it is unclear whether gradients of freely diffusible proteins can form within bacterial cells g...

In this paper, we present a THz attenuator based on the sub-wavelength metal s tructures. The T Hz attenuator is designed and fabricated on a copper foil. We measured TH z transmission of the at tenuator by means of terahertz time domain spectroscopy. The experimental results s how th at the attenuator ca n h ave a good frequency selectivity which depends on the polarization of THz radiati on. ...

Introduction Striga is a highly successful pathogen of cereal crops in sub-Saharan Africa. Also known as witchweed, Striga is an attractive parasitic plant whose beautiful flowers belie its noxiousness. Most cultivated cereals, including maize, millet, sorghum, and rice, are parasitized by at least one Striga species, leading to enormous economic losses. Control strategies are limited but inclu...

Infectious diarrhea has been among the most common maladies of military deployments throughout time. The U.S. military experienced a significant burden from this disease in the middle eastern and north African campaigns of World War II (WWII). This article compares patterns of disease experienced in WWII with the recent military deployments to the same region for Operation Iraqi Freedom and Ope...

Facial interactions are prominent behaviors in primates. Primate facial signaling, which includes the expression of emotions, mimicking of facial movements, and gaze interactions, is visually dominated. Correspondingly, in primate brains an elaborate network of face processing areas exists within visual cortex. But other mammals also communicate through facial interactions using additional sens...

5 Analytical methods for the detection of waterborne and environmental pathogenic mycobacteria 5.1 INTRODUCTION This chapter reviews the state-of-the-art methods for the detection of pathogenic mycobacteria in the environment. It provides a concise review of the literature surrounding this aspect of mycobacteriology. Some unusual features define the genus Mycobacterium. These include a waxy cel...

We present a review of literature from the fields of gerontology, HCI and human factors, which focus on the nature of family and peer relationships in old age. We find both simplistic, prevailing models of what it means to be old, as well as deeper insights which often belie these models. In addition, we discover that new technologies are often also based on quite simple assumptions, but that t...

The lagging achievement of many U.S. Latinos is staggering. Latinos have the highest high school dropout rate. Further, secondand third-generation Latinos in the United States perform less well than do recent immigrants. These statistics belie the hopes and aspirations for upward mobility, a better life, and the deep value for education that are tightly held by many Latino immigrant families. U...

EUVE , ROSAT , and ASCA observations of the boundary layer emission of nonmagnetic cataclysmic variables (CVs) are reviewed. EUVE spectra reveal that the effective temperature of the soft component of high-Ṁ nonmagnetic CVs is kT ∼ 10–20 eV and that its luminosity is∼ 0.1–0.5 times the accretion disk luminosity. Although the EUV spectra are very complex and belie simple interpretation, the phys...