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Why does my library account say that I am blocked, that I am barred, or that my status is expired?
Users can encounter several different types of status messages. Patrons with questions about their account status can visit the checkout desk in room 241 of LSU Library and ask to speak to a staff member. Alternatively, patrons can reach out to us via e-mail at libcirc@lsu.edu (mailto:libcirc@lsu.edu) . When contacting us via e-mail, LSU students, staff, and faculty should message us from their LSU e-mail address; public patrons should message us from the e-mail address we have on file. For privacy reasons, we cannot discuss the details of patron accounts over the telephone. Expired: Students must be currently enrolled in classes in order to be granted library privileges. Once they graduate, or if they fail to register on time in accord with the deadlines posted on LSUs academic calendar, their privileges expire. If they try to log in to their library account after that date, they will see an alert message informing them that their account has expired. Graduate students who have received a masters degree but are continuing on to get their PhD may also have their privileges expire earlier than expected. The library receives weekly updates on student status from the Registrars Office. Once the semester has begun, if students register during the week, their accounts will not be updated and their privileges extended in the system until the following Monday morning. Blocked: Users with overdue recalled books will have their accounts blocked by the system. Their accounts will remain blocked until the book is returned. The system will not permit staff members to override blocks or to renew books that have been recalled. The only way to remove a block from an account is to return the materials. Barred: Users can be barred from using library materials for a number of reasons, the most common being that they have been billed for lost items. They can also be barred if they resign from the university, if their classes are purged, or for flagrant violations of library policy. If they try to log into their account after they have been barred, they will receive an alert message that tells them that they have been barred. Answered by: Access Services Staff

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2063842
Deep root uptake of leachable nitrogen in two soil types is reduced by high availability of soil nitrogen in fodder radish grown as catch crop
Plant available soil nitrogen (N) may affect deep root growth and soil N depletion by catch crops. We investigated the influence of topsoil N availability on root growth and uptake by fodder radish.We conducted field and greenhouse experiments of root growth and late autumn N uptake at medium and high soil N availabilities, and root N inflow at medium and deep soil depths ( 15 N injection) in sandy loam and loamy sand, using the minirhizotron method in the field and rhizotrons in the greenhouse.High soil N availability resulted in lower root intensity in the field, but higher root intensity in the greenhouse experiment under both soil types. Radish had deeper roots and higher root intensity in sandy loam than in loamy sand. High soil N availability caused lower 15 N uptake at both soil depths in the field and lower N inflow rates at both soil depths in field and greenhouse. At medium soil N availability in the field, N inflow was twice as high in the deep than in the medium depth.Higher soil N availability affects root growth and decrease N inflow, thus lowering late autumn N uptake and hampering deep N exploitation by fodder radish. At medium soil N availability, the potential for N uptake in deep soil is higher probably due to younger roots than at a medium soil depth. The shallower and less dense root growth in loamy sand is probably due to its lower clay and higher P contents.
Hard to catch : experimental evidence supports evasive mimicry
Most research on aposematism has focused on chemically defended prey, but the signalling difficulty of capture remains poorly explored. Similar to classical Batesian and Müllerian mimicry related to distastefulness, such ‘evasive aposematism’ may also lead to convergence in warning colours, known as evasive mimicry. A prime candidate group for evasive mimicry are Adelpha butterflies, which are agile insects and show remarkable colour pattern convergence. We tested the ability of naive blue tits to learn to avoid and generalize Adelpha wing patterns associated with the difficulty of capture and compared their response to that of birds that learned to associate the same wing patterns with distastefulness. Birds learned to avoid all wing patterns tested and generalized their aversion to other prey to some extent, but learning was faster with evasive prey compared to distasteful prey. Our results on generalization agree with longstanding observations of striking convergence in wing colour patterns among Adelpha species, since, in our experiments, perfect mimics of evasive and distasteful models were always protected during generalization and suffered the lowest attack rate. Moreover, generalization on evasive prey was broader compared to that on distasteful prey. Our results suggest that being hard to catch may deter predators at least as effectively as distastefulness. This study provides empirical evidence for evasive mimicry, a potentially widespread but poorly understood form of morphological convergence driven by predator selection.
Status of 54 Fishery Resources Exploited by the Gujarat Fleet in the Northeastern Arabian Sea Using the Monte Carlo Catch-MSY (CMSY) Method
The maximum sustainable yield (MSY) and status of 54 fishery resources exploited by the Gujarat fishing fleet in the northeastern Arabian Sea were assessed using the data-limited CMSY method. The prioritized fishery resources in this study make a significant contribution to the total marine catch in the region and play a vital role in trophic interactions. The Gujarat marine fisheries recorded an annual percentage growth rate of 5.04 per year from 1985 to 2018. The MSY was computed at 8.73 × 105 t across all resources. The biomass indicators (B/BMSY) indicated alarming overexploitation for commercially exploited resources like Bregmaceros mcclellandi, Tenualosa ilisha, Coilia dussumieri, Euthynnus affinis, Thunnus tonggol, Scomberoides spp., Psettodes erumei, Pampus argenteus, etc. Stock assessment using biological reference points (B/BMSY, F/FMSY) classified 39 resources were found either healthy or slightly overfished (B/BMSY>0.8), while 13 showed varying degrees of overexploitation, including 2 severely depleted species (unicorn cod, silverbellies). The rampant increase of fishing efforts and target exploitation can cause the collapse or overfishing of resources, which eventually affects the integrity of the ecosystem. The fishery and biomass indicators computed in the current study suggest periodic monitoring of overexploited stocks and a framework of rebuilding strategies for grossly overfished and overfished resources.Clinical Trial Number: Not applicable.