Abstract Motivated by location-based social networks which allow people to access services as a group, we study novel variant of optimal sequenced route ( OSR ) queries, for group meetup (OSR-G) queries. OSR-G query aims find the meeting POI (point interest) such that maximum users’ distance is minimized after each user visits number POIs specific categories (e.g., gas stations, restaurants, an...

When applied to wire ice-covering forecasting, the back propagation (BP) neural network is a lack of guidance for selecting the neural network initial connection weight and network structure, which contributes to the problem of a high degree of randomness and poses a difficulty for selecting an initial node with global properties. Combination traditional forecasting methods of Mean Generating F...

The sulfur cycle in marine sediments exerts a major control on the redox state of the ocean and atmosphere. The overall driver in the sulfur cycle is the microbial mediated sulfate reduction to sulfide (SR). We broadly divide sedimentary SR into two categories: organoclastic sulfate reduction (OSR), which acts as the terminal electron acceptor during the degradation of buried organic matter; an...

PURPOSE We attempted to determine risk factors for the development of failing vein graft and optimal treatment in patients with infrainguinal vein grafts. METHODS We retrospectively reviewed a database of patients who underwent infrainguinal bypass using autogenous vein grafts due to chronic atherosclerotic arterial occlusive disease of lower extremity (LE) at a single institute between Septe...

Splenic rupture is a common complaint encountered in emergency surgery. Trauma is the most common cause of splenic rupture, while non-traumatic or occult splenic rupture (OSR) is a rare condition. The differential diagnosis weighs on treatment that ranges between close monitoring, splenorrhaphy, splenic conservation and splenectomy. We report a case of an 63-year-old man presenting with acute a...

Introduction: Prairie voles (Microtus ochrogaster), are a commonly used model of nonhuman social monogamy. Traditional monogamous systems are comprised of male-female pairs that share territory and care for offspring. Operational sex ratio (OSR), the relative ratio of males to females that are sexually receptive, can affect sexual selection, and in monogamous systems, OSR tend to be about 1:1. ...

The optimal sequenced route (OSR) query performs a critical role in finding the most economical route for a trip, for instance, location base services. OSR finds the minimum-length route, starting from an origin location and passing through a number of locations or points of interest (POIs), following the prespecified route sequence. An OSR query on road networks tends to expand an extremely la...

Many previous studies report nectar residues being consistently lower than pollen residues in the same plant species. This is also evident in our samples from the oilseed rape (OSR) crop, where 100% of pollen samples contained thiamethoxam, whereas only 53.9% of the nectar samples had detectable levels of this compound. However, as clearly explained in our manuscript, our wildflower nectar and ...

Sex-allocation theory suggests that selection may favour maternal skewing of offspring sex ratios if the fitness return from producing a son differs from that for producing a daughter. The operational sex ratio (OSR) may provide information about this potential fitness differential. Previous studies have reached conflicting conclusions about whether or not OSR influences sex allocation in vivip...

The toxicity of spill-treating agents (STAs) is a topic that needs to be assessed prior to their potential application in environmental disasters. The aim of the present work was to study the effects of four commercial STAs (CytoSol, Finasol OSR 51, Agma OSD 569 and OD4000) on the growth of marine (Phaeobacter sp., Pseudomonas sp.) and terrestrial (Leuconostoc mesenteroides) bacteria, and sea u...