conclusions the adoption of 85 dba as the permissible exposure limit has preserved hearing threshold level among participants at 3000 hz compared to those who embraced 90 dba. patients and methods this is an intervention study done on two automobile factories. there were 203 employees exposed to noise levels beyond the action level. hearing protection devices were distributed to reduce noise le...

SUMMARY DBA/2 mice inoculated with the strain-specific leukemia L1210 survived more than 50 days as a result of the combined effects of drug treatments and immunity. Differences in Li 210 immunogenicity were noted among 3 sublines of DBA/2 mouse strain. The therapeutic effects occurred also in DBA/2 sublines in which L1210 is weakly immunogenic and at drug doses which are immunodepressant per s...

background: in an effort to understand what limits the virulence of malaria para­sites in relation to the host genetic and immunogenic background, we investi­gated the possibility that the parasite and host genotype crossover interac­tions constrain virulence. methods: two groups of mice from different genotypes were used (c57bl/6 (b6) and dba/2 mice). the mice were infected with a virulent par...

Siamese trackers have achieved a good balance between accuracy and efficiency in generic object tracking. However, background distractors cause side effects to the discriminative representation of target. To suppress sensitivity distractors, we propose Double Branch Attention (DBA) block tracker equipped with DBA named DBA-Siam. First, concatenates channels multiple layers from two branches fra...

Fiber wireless access (FiWi) network is a category of hybrid network, which cumulates the advantages of optical network and wireless network at frontend and backend respectively. FiWi is one of those networks which are capable of providing high bandwidth as well as great flexibility. In today’s world of high speed applications demand of spectrum is increasing rapidly, hence it becomes criticall...

Proliferation and erythroid differentiation of transplanted DBA/2 marrow cells and Friend virus-induced leukemic cells were assessed in syngeneic, allogeneic (H-2 compatible), and (BALB/c x DBA/2)F(1) hybrid mice (CDF(1)). Measurements were made 5 days after transplantation of donor cells into nonirradiated or X-irradiated mice by the spleen colony or the (125)IUdR-(59)Fe uptake methods. Growth...

Submarine groundwater discharge (SGD) can have a profound influence on marine environments and elemental biogeochemical cycles in coastal waters. We explored the feasibility of using Ba/Ca ratios benthic foraminiferal shells as proxy SGD. Dissolved barium (DBa) displayed enrichment behavior bottom waters indicating that SGD is major DBa source Changjiang (Yangtze) Estuary. Foraminifera lived wi...

Objective. Determination of the effect of dentin bonding agent (DBA) on the prevention of tooth discoloration produced by mineral trioxide aggregate (MTA). Methods. 50 teeth were endodontically treated and after removal of 3 mm of obturating materials were divided into five groups. In white MTA (WMTA) and grey MTA (GMTA) groups, these materials were placed in root canal below the orifice. In DB...