In this study, a multispecies gadget model (GadCap) simulating the interactions among Flemish Cap cod (Gadus morhua), redfish (Sebastes spp.), and shrimp (Pandalus borealis) has been incorporated as operating in management strategy evaluation (MSE) framework (a4a-FLR) to test performance of multiple combinations harvest control rules (HCRs) for three stocks when recruitment uncertainty assessment error are accounted for. The results indicate that due strong trophic interactions, it is not...

Like other fundamental abstractions for high-performance computing, search trees need to support both high concurrency and data locality. However, existing locality-aware based on the van Emde Boas layout (vEB-based trees), poorly concurrent (update) operations.

The advent of exascale computing, with the unparalleled rise in scale data Internet Things (IoT), high performance computing (HPC), and big domains, both at center edge system, requires optimal exploitation energy-efficient hardware dedicated for processing. Emerging processing must take advantage advanced concurrent locality-aware algorithms structures order to provide better throughput energy efficiency. Their design be portable their implementation perform equally well on as other...

Abstract Biased estimates of population status are a pervasive conservation problem. This problem has plagued assessments commercial exploitation marine species and can threaten the sustainability both populations fisheries. We develop computer‐intensive approach to minimize adverse effects persistent estimation bias in by optimizing operational harvest measures (harvest control rules) with closed‐loop simulation resource‐management feedback systems: management strategy evaluation. Using...

Recent research has suggested that improving fine-grained data-locality is one of the main approaches to energy efficiency and performance. However, no previous investigated effect approach on these metrices in case concurrent data structures.

As other fundamental programming abstractions in energy-efficient computing, search trees are expected to support both high parallelism and data locality. However, existing highly-concurrent such as red-black AVL do not consider locality while locality-aware those based on the van Emde Boas layout (vEB-based trees), poorly concurrent (update) operations. This paper presents DeltaTree, a practical tree that combines locality-optimisation techniques from vEB-based concurrency-optimisation...

The study examined farmer’s perception on changes in climate variables Sokoto State. Eight local government areas East senatorial district were purposively selected due to their vulnerability climatic changes. Proportionate sampling was employed select the eight villages. A total of two hundred and twenty three (223) questionnaires administered. Descriptive statistics used analyze socio-economic characteristics farmers. ANOVA test significant differences between ten years. results indicated...

Current work on bipartite graph-based algorithm for protein tertiary structure matching shows that the demands heavy computation and extensive processing time during graph preparation matching. In this work, we deployed multithreading approach using OpenMP to enhance performance of algorithm. The experiment dual quad core machines speedup is 4.9 8 threads with minimum execution 121.39 seconds, before it gradually increases as more are added. parallel code has successfully utilized available...

Concurrent search trees are crucial data abstractions widely used in many important systems such as databases, file and storage. Like other fundamental for energy-efficient computing, concurrent should support both high concurrency fine-grained locality a platform-independent manner. However, existing portable locality-aware ones based on the van Emde Boas layout (vEB-based trees) poorly update operations while highly-concurrent non-blocking do not consider locality. In this paper, we first...

Recent research has suggested that improving fine-grained data-locality is one of the main approaches to energy efficiency and performance. However, no previous investigated effect approach on these metrices in case concurrent data structures. This paper investigates how locality influences performance search trees, a crucial structure widely used several important systems. We conduct set experiments three lock-based trees: DeltaTree, portable locality-aware tree; CBTree, coarse-grained...

Like other fundamental abstractions for high-performance computing, search trees need to support both high concurrency and data locality. However, existing locality-aware based on the van Emde Boas layout (vEB-based trees), poorly concurrent (update) operations. We present DeltaTree, a practical tree that integrates locality-optimization techniques from vEB-based trees, optimization highly-concurrent trees. As result, DeltaTree minimizes transfer memory CPU supports concurrency. Our...

Bioaccumulation of heavy metal in fish Auchenoglanis occidentalis,Clarias gariepinus and Oreochromis niloticus) tissues Upper Benue River was evaluated.Data were collected four different sites the river once month triplicate from May 2014-October 2015 determination Heavy like Pb, Cu, Cd, Zn, Cr Ni using a Buck Scientific 200A model, Atomic Absorption Spectrophotometer.All Metals (Pb, Ni) under investigation present measurable amount except Cadmium Chromium which below detection level.The...

We proposed a parallel linear storage space with sub complexity text searching algorithm by combination of an offline and online methods. achieved this modeling semi-self Index which is consists along its index in efficient compact structure. This structure will only required n also small running time during the search process. The proven to be practically since it gained near speedup environment runs f average O (n/cp m log c/|Sigma|+c_time) theoretical time.

The study investigated the influence of marketing mix on sustainability small-scale business in Alkaleri, Bauchi State, Nigeria. Specifically, had four objectives and null hypotheses. Descriptive survey research design was adopted for study. entire 134 management staff 187 registered Small-scale Alkaleri were used Structured questionnaire to elicit data from participants. Three experts validated instrument before subjecting it pilot test. result test yields a Cronbach alpha reliability...

Natural lighting and ventilation is desired in public libraries for efficient lighting, human comfort structural cooling. The study revealed that Gombe could not function efficiently without artificial source of which economically a disadvantage, unreliable has sustainability problems. However natural when harnessed more reliable consume less energy compared with other ventilation. This research focuses on the evaluation application library state view to solve poor level ventilation,...

The study aimed at assessing the fisheries potentials of Hadejia River. Data on captured fishes were collected over a period five weeks using gill nets various mesh sizes, with assistance fishermen. A total twenty different fish species belonging to 14 families identified. family Cichlidae dominated fauna 54%. Claridae constituted 20%, while others least only 26%. caught per day was about 1,308 from six landing sites, fishermen operating averagely each site. also revealed that river...