Concern over fault tolerance in the design of interconnection networks has stimulated interest in finding large graphs with maximum degree ∆ and diameter D such that the subgraphs obtained by deleting any set of s vertices have diameter at most D′, this value being close to D or even equal to it. This is the so-called (∆, D, D′, s)-problem. The purpose of this work has been to study this proble...

The introduced tree, Sapium sebiferum, is a serious invader throughout the southeastern United States. Low herbivore loads, commonly attributed to high herbivore resistance, are assumed to give Sapium a competitive advantage over native vegetation. Because herbivory resistance is considered energetically expensive, we predicted that if Sapium experienced higher levels of damage its growth would...

In the context of global warming, effects warming in root zone crops on maize seedling characteristics deserve research attention. Previous studies adaptive traits dryland have mainly focused soil moisture and nutrients, rather than analyzing potential factors for warming. This study was conducted to investigate different ranges agronomic traits, hormones, microstructures roots leaves. The resu...

Abstract Alluvial floodplain forests became rare in many parts of Europe, due to anthropogenic changes. Therefore, restoration is important, but a difficult task because the complex environmental conditions. The zonation woody species floodplains mainly determined by hydrological conditions, not only within one year also during previous years. Tolerance flooding can be regarded as key factor fo...

Sugarcane (Saccharum spp.) in south Florida is often subjected to flooding due to intense summer rainfall or tropical storms. While there has been considerable research on the response of sugarcane cultivars to high water tables, there is a lack of information on cultivar morphological adaptation to long-term flooding. An experiment was established in Belle Glade, FL to examine: (i) effects of ...

Abstract Aims Growth reductions and yield losses from drought could be mitigated by developing rice genotypes with more efficient root systems. We examined spatiotemporal responses to in order determine whether roots upper vs. deeper soil layers respond differently stress. Methods Root anatomical architectural phenotypes of two genotypes, Azucena (drought tolerant) IR64 susceptible), were measu...

some recent studies have revealed the relationship among excess ferritin, coronary heart disease, and insulin resistance. to assess the association between serum ferritin concentration and impaired fasting glucose, this study was designed. a total of 187 people including 91 impaired fasting glucose (ifg) subjects and 96 normal glucose subjects who had been recognized in a large epidemiological ...

mice were rendered tolerant and dependent to morphine by subcutaneous injection of morphine over a period of 5 days. the effects of acute and chronic administration of dihydropyridine calcium channel antagonist nifedipine on the development of tolerance and naloxone-precipitated morphine withdrawal signs were investigated. a single injection of nifedipine proved to be effective in inhibiting so...