The Design and Implementation of a PCIe-based LESS Label Switch

With the explosion of the Internet of Things, the number of smart, embedded devices has grown exponentially in the last decade, with growth projected at a commiserate rate. These devices create strain on the existing infrastructure of the Internet, creating challenges with scalability of routing tables and reliability of packet delivery. Various schemes based on Location-Based Forwarding and ID-based routing have been proposed to solve the aforementioned problems, but thus far, no solution has completely been achieved. This thesis seeks to improve current proposed LORIF routers by designing, implementing, and testing and a PCIe-based LESS switch to process unrouteable packets under the current LESS forwarding engine

Today’s Schedules for Today’s Workforce: Hourly Employees and Work-Life Fit

[Excerpt] This paper provides employers with the tools they need to match today’s workplace to today’s workforce. First, the paper describes “just-in-time” schedules – schedules which create instability and unpredictability for hourly workers. It then suggests several means by which employers can reduce such instability in the just-in-time sector, providing increased scheduling effectiveness. Next, the paper discusses scheduling rigidity and provides employers with a variety of means for easing this rigidity by creating a more flexible workplace. The ultimate goal of this paper is to create a win-win outcome for hourly workers and their employers by synchronizing today’s workplace with today’s workforce. We seek to accomplish this goal by helping employers understand the needs of hourly employees with family responsibilities and demonstrating that accommodating these needs does not result in increased labor costs. To the contrary, introducing flexible scheduling and/or predictable scheduling can in fact reduce labor costs

Explaining Cross-National Variations in the Prevalence and Character of Undeclared Employment in the European Union

The aim of this article is to evaluate the competing theories that variously explain the greater prevalence of undeclared employment in some countries either as: a legacy of under-development; a result of the voluntary exit from declared employment due to the high taxes, state corruption and burdensome regulations and controls, or a product of a lack of state intervention in work and welfare which leads to the exclusion of workers from the declared economy and state welfare provision. Analyzing the cross-national variations in the prevalence of, and reasons for, undeclared employment across the European Union using evidence from a 2007 Eurobarometer survey, the finding is that undeclared employment is less prevalent and more of the voluntary variety in wealthier, less corrupt and more equal societies possessing higher levels of social protection and redistribution via social transfers. The theoretical and policy implications are then discussed

cAMP-Inhibits Cytoplasmic Phospholipase A(2) and Protects Neurons against Amyloid-beta-Induced Synapse Damage

A key event in Alzheimer’s disease (AD) is the production of amyloid-β (Aβ) peptides and the loss of synapses. In cultured neurons Aβ triggered synapse damage as measured by the loss of synaptic proteins. α-synuclein (αSN), aggregates of which accumulate in Parkinson’s disease, also caused synapse damage. Synapse damage was associated with activation of cytoplasmic phospholipase A2 (cPLA2), an enzyme that regulates synapse function and structure, and the production of prostaglandin (PG) E2. In synaptosomes PGE2 increased concentrations of cyclic adenosine monophosphate (cAMP) which suppressed the activation of cPLA2 demonstrating an inhibitory feedback system. Thus, Aβ/αSN-induced activated cPLA2 produces PGE2 which increases cAMP which in turn suppresses cPLA2 and, hence, its own production. Neurons pre-treated with pentoxifylline and caffeine (broad spectrum phosphodiesterase (PDE) inhibitors) or the PDE4 specific inhibitor rolipram significantly increased the Aβ/αSN-induced increase in cAMP and consequently protected neurons against synapse damage. The addition of cAMP analogues also inhibited cPLA2 and protected neurons against synapse damage. These results suggest that drugs that inhibit Aβ-induced activation of cPLA2 and cross the blood–brain barrier may reduce synapse damage in AD

Bird Migration Through A Mountain Pass Studied With High Resolution Radar, Ceilometers, And Census

Autumnal migration was studied with high-resolution radar, ceilometer, and daily census in the area of Franconia Notch, a major pass in the northern Appalachian Mountains. Under synoptic conditions favorable for migration, broadfront movements of migrants toward the south passed over the mountains, often above a temperature inversion. Birds at lower elevations appeared to be influenced by local topography. Birds moving southwest were concentrated along the face of the mountain range. Birds appeared to deviate their flights to follow local topography through the pass. Specific migratory behavior was not associated with species or species groups. Under synoptic conditions unfavorable for southward migration, multimodal movements probably associated with local flights were as dense as the southward migrations described above. Avian migrants reacting to local terrain may result in concentrations of migrants over ridge summits or other topographic features

Nutritional quality and calorific value of Amazonian forest litter

A study on the nutritional quality of litter from an Amazon terra firme forest was carried out to supplement quantitative data on litter production previously published by KLINGE and RODRIGUES (1968). Analyses for the following constituents were carried out: cell-wall and non cell-wall fractions, crude protein, total mineral ash, polyphenols, and caloric values. Reasons are given for choosing these variables. Mineral ash and protein values were very low, whilst cell-wall fractions, which are a measure of the amount of undigestible material, were high, as were caloric values. Polyphenols were also relatively high. These factors together indicate that the litter is a very low grade forage. Amazon leaf litter has high caloric values compared with published figures from other tropical forests. The following hypothesis was offered to explain these high values: as mineral nutrients are severely limiting in this ecosystem, not all the products of photosynthesis can be channeled into plant growth. Large proportions of these photosynthetic products are therefore probably accumulated in the leaves as reduced high energy compounds such as waxes, resins etc. Available data do in fact indicate that primary production is relatively low. The low quality forage which the leaf litter offers may be a contributing factor to the low animal biomass of the Amazon forests