In formal concept analysis, it is well-known that the number of concepts can be exponential in worst case. To analyze average case, we introduce a probabilistic model for random contexts and prove has superpolynomial asymptotic lower bound.

the effects of aflatoxin (af) (0.0 and 0.5m g kg-1) and high grade sodium bentonite (hgsb) (5, 7.5 and 10 g kg-1) were tested in an in vivo study including 8 dietary treatments with three replicates of 14 birds per diet per replicate, using a total of 336 broiler chicks up to five weeks. results showed that chicks receiving af contaminated feed had significantly (p≤ 0.05) suppressed body weight...

background & aim: the most common primary brain tumors of the central nervous system are gliomas. among a number of different biomolecular events, a strong relation between oxidative stress pathways and the development of this cancer has been proved. oxidative stress (os) is the consequence of an imbalance between pro-oxidants and antioxidants towards pro-oxidants. the pro-oxidants cause lipid ...

This study aims to investigate the difficulty level of PTT (Midterm Assessment) questions according students' perceptions and its impact on learning outcomes at UPT SPF (Formal Education Technical Implementation Unit) SD Inpres Karuwisi 2. The research sample consisted 30 students in fourth grade. Students' were assessed based interval grades, with following findings: there was 1 student a grad...

(-)-gephyrotoxin-223 was formally synthesized from chiral synthon 1 which has been chemoenzymatically synthesized  in the presence  of candida antartica lipase.

We propose the PeerRank method for peer assessment. This constructs a grade for an agent based on the grades proposed by the agents evaluating the agent. Since the grade of an agent is a measure of their ability to grade correctly, the PeerRank method weights grades by the grades of the grading agent. The PeerRank method also provides an incentive for agents to grade correctly. As the grades of...