Hierarchical Trustworthy Authentication for Pervasive Computing

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A new approach to generating research-quality phenology data: The USA National Phenology Monitoring System

The USA National Phenology Network (www.usanpn.org) has recently initiated a national effort to encourage people at different levels of expertise—from backyard naturalists to professional scientists—to observe phenology and contribute to a national database that will be used to greatly improve our understanding of spatio-temporal variation in phenology and associated phenological responses to climate change. Many phenological observation protocols identify specific single dates at which individual phenological events are observed, but the scientific usefulness of long-term phenological observations can be improved with a more carefully structured protocol. At the USA-NPN we have developed a new approach that directs observers to record each day that they observe an individual plant, and to assess and report the state of specific life stages (or phenophases) as occurring or not occurring on that plant for each observation date. Observations of animal phenophases are similarly recorded, although for a species as a whole rather than for a specific individual. Evaluation is phrased in terms of simple, easy-to-understand, questions (e.g. “Do you see open flowers?”) which makes it appropriate for a broad audience. From this method, a rich dataset of phenological metrics can be extracted, including the duration of a phenophase (e.g. open flowers), the beginning and end points of a phenophase (e.g. traditional phenological events such as first flower and end flowering), multiple distinct occurrences of phenophases within a single growing season (e.g multiple flowering events, common in drought-prone regions), as well as quantification of sampling frequency and observational uncertainties. The system also includes a mechanism for translation of phenophase start and end points into standard traditional phenological events to facilitate comparison of contemporary data collected with this new “phenophase status” monitoring approach to historical datasets collected with the “phenological event” monitoring approach. These features greatly enhance the utility of the resulting data for statistical analyses addressing questions such as how phenological events vary in time and space, and in response to global change

Proverbs and Work

Introduction to Proverbs About the Book of Proverbs What Do the Proverbs Have to Do With Work? The Valiant Woman (Proverbs 31:10-31) The Wise Worker is Trustworthy (Proverbs) A Trustworthy Worker is Faithful to His or Her Fiduciary Responsibilities (Proverbs) A Trustworthy Worker is Honest (Proverbs) The Wise Worker is Diligent (Proverbs) A Diligent Worker is Hard-working (Proverbs) A Diligent Worker Plans for the Long Term (Proverbs) A Diligent Worker Contributes to the Profitability of the Enterprise (Proverbs) A Diligent Worker Can Smile at the Future (Proverbs) The Wise Worker is Shrewd (Proverbs) The Wise Worker is Generous (Proverbs) The Wise Worker is Just (Proverbs) The Wise Worker Guards the Tongue (Proverbs) The Wise Worker is Modest (Proverbs) Conclusion to Proverbs Index by Chapter-Verse (Proverbs

NO VIRTUE IN PASSIVITY: THE SUPREME COURT AND ALI AL-MARRI

This Article discusses the case of Al-Marri v. Spagone, which the U.S. Supreme Court unjustifiably dismissed as moot on March 6, 2009. By dismissing this appeal, the Court ignored its duty to determine whether the military detention of a non-citizen residing lawfully in the United States was authorized by law. And that failure has in turn contributed significantly, and unnecessarily, to the cloud of legal uncertainty which now hovers over the preventive detention measures adopted and proposed by the Obama Administration

NO VIRTUE IN PASSIVITY: THE SUPREME COURT AND ALI AL-MARRI

This Article discusses the case of Al-Marri v. Spagone, which the U.S. Supreme Court unjustifiably dismissed as moot on March 6, 2009. By dismissing this appeal, the Court ignored its duty to determine whether the military detention of a non-citizen residing lawfully in the United States was authorized by law. And that failure has in turn contributed significantly, and unnecessarily, to the cloud of legal uncertainty which now hovers over the preventive detention measures adopted and proposed by the Obama Administration

Comparative population structure of <i>Plasmodium malariae</i> and <i>Plasmodium falciparum</i> under different transmission settings in Malawi

&lt;b&gt;Background:&lt;/b&gt; Described here is the first population genetic study of Plasmodium malariae, the causative agent of quartan malaria. Although not as deadly as Plasmodium falciparum, P. malariae is more common than previously thought, and is frequently in sympatry and co-infection with P. falciparum, making its study increasingly important. This study compares the population parameters of the two species in two districts of Malawi with different malaria transmission patterns - one seasonal, one perennial - to explore the effects of transmission on population structures. &lt;BR/&gt; &lt;b&gt;Methods:&lt;/b&gt; Six species-specific microsatellite markers were used to analyse 257 P. malariae samples and 257 P. falciparum samples matched for age, gender and village of residence. Allele sizes were scored to within 2 bp for each locus and haplotypes were constructed from dominant alleles in multiple infections. Analysis of multiplicity of infection (MOI), population differentiation, clustering of haplotypes and linkage disequilibrium was performed for both species. Regression analyses were used to determine association of MOI measurements with clinical malaria parameters. &lt;BR/&gt; &lt;b&gt;Results:&lt;/b&gt; Multiple-genotype infections within each species were common in both districts, accounting for 86.0% of P. falciparum and 73.2% of P. malariae infections and did not differ significantly with transmission setting. Mean MOI of P. falciparum was increased under perennial transmission compared with seasonal (3.14 vs 2.59, p = 0.008) and was greater in children compared with adults. In contrast, P. malariae mean MOI was similar between transmission settings (2.12 vs 2.11) and there was no difference between children and adults. Population differentiation showed no significant differences between villages or districts for either species. There was no evidence of geographical clustering of haplotypes. Linkage disequilibrium amongst loci was found only for P. falciparum samples from the seasonal transmission setting. &lt;BR/&gt; &lt;b&gt;Conclusions:&lt;/b&gt; The extent of similarity between P. falciparum and P. malariae population structure described by the high level of multiple infection, the lack of significant population differentiation or haplotype clustering and lack of linkage disequilibrium is surprising given the differences in the biological features of these species that suggest a reduced potential for out-crossing and transmission in P. malariae. The absence of a rise in P. malariae MOI with increased transmission or a reduction in MOI with age could be explained by differences in the duration of infection or degree of immunity compared to P. falciparum

Occasional papers

no.4 (1994

Teaching Scholarly Writing to Doctoral Students: Giving Novice Scholars a Running Start

Students entering doctoral programs in adult education and related fields often experience culture shock. Perhaps the biggest adjustment is learning how to think and write like a scholar. This paper examines how involvement by doctoral students in a formal scholarly writing project during their first semester of study influenced their subsequent doctoral experience and professional work