OBSTACLE DETECTION AND NAVIGATION OF AUTONOMOUS ROBOT

This report presents an obstacle detect autonomous mobile robot. Robot used an Atmega 32 microcontroller as its brain. Atmega 32 receives input from Ultrasonic Distance Meter (UDM). Some computations are performed on this input and a control signal is generated to control the robot\u27s position. This control signal is generated through a PWM signal. which is implemented in the microcontroller. Afterwards, microcontroller was programmed in C language using a AVR Studio4 compiler

SURVEILLANCE OF MICROBIAL FLORA FOR INFERTILITY COUPLES IN AN INDIAN TERTIARY CARE TEACHING HOSPITAL

Objective: Infertility has been known to cause serious social and emotional problems in India. Microorganisms may be a primary cause for thisinfertility. This study was carried out to know the prevalence of microorganisms in the infertility couples of a tertiary caring teaching hospital.Methods: One thousands of couples were screened for the infertility test presented at the outpatient Department of Obstetrics and Gynaecology.The suspected infertility couples were tested for microbial contamination in their reproductive sample. Simultaneously, the demographic data of allpatients were documented, and all the data were analyzed with SPSS 20 software.Result: From one thousand couples, 288 couples were found infertility symptoms, whereas 67.71% were primary infertility problems and rest weresecondary. It is due to male factor (27.08%), female factor (50%), and both (4.86%) but 18.05 were unexplained. From vaginal swabs, 186 and semen145 microbial colony were grown. However, Chi-square (χ) showed that there is no significant difference between the growth of microbial colony from semen or vaginal swap as p=0.06. Eight varieties of bacteria (387) and Candida albicans (37) were documented. 2Conclusion: With respect to older ages of the infertile couples, it is more chances to infections. Antibiotic should be prescribed to primary infertilitycouples and infections can be avoided the cross transmission during intercourse.Keywords: Primary infertility, Candida, Semen, Antibiotic, Vaginal swab

31st Annual Meeting and Associated Programs of the Society for Immunotherapy of Cancer (SITC 2016) : part two

Background The immunological escape of tumors represents one of the main ob- stacles to the treatment of malignancies. The blockade of PD-1 or CTLA-4 receptors represented a milestone in the history of immunotherapy. However, immune checkpoint inhibitors seem to be effective in specific cohorts of patients. It has been proposed that their efficacy relies on the presence of an immunological response. Thus, we hypothesized that disruption of the PD-L1/PD-1 axis would synergize with our oncolytic vaccine platform PeptiCRAd. Methods We used murine B16OVA in vivo tumor models and flow cytometry analysis to investigate the immunological background. Results First, we found that high-burden B16OVA tumors were refractory to combination immunotherapy. However, with a more aggressive schedule, tumors with a lower burden were more susceptible to the combination of PeptiCRAd and PD-L1 blockade. The therapy signifi- cantly increased the median survival of mice (Fig. 7). Interestingly, the reduced growth of contralaterally injected B16F10 cells sug- gested the presence of a long lasting immunological memory also against non-targeted antigens. Concerning the functional state of tumor infiltrating lymphocytes (TILs), we found that all the immune therapies would enhance the percentage of activated (PD-1pos TIM- 3neg) T lymphocytes and reduce the amount of exhausted (PD-1pos TIM-3pos) cells compared to placebo. As expected, we found that PeptiCRAd monotherapy could increase the number of antigen spe- cific CD8+ T cells compared to other treatments. However, only the combination with PD-L1 blockade could significantly increase the ra- tio between activated and exhausted pentamer positive cells (p= 0.0058), suggesting that by disrupting the PD-1/PD-L1 axis we could decrease the amount of dysfunctional antigen specific T cells. We ob- served that the anatomical location deeply influenced the state of CD4+ and CD8+ T lymphocytes. In fact, TIM-3 expression was in- creased by 2 fold on TILs compared to splenic and lymphoid T cells. In the CD8+ compartment, the expression of PD-1 on the surface seemed to be restricted to the tumor micro-environment, while CD4 + T cells had a high expression of PD-1 also in lymphoid organs. Interestingly, we found that the levels of PD-1 were significantly higher on CD8+ T cells than on CD4+ T cells into the tumor micro- environment (p < 0.0001). Conclusions In conclusion, we demonstrated that the efficacy of immune check- point inhibitors might be strongly enhanced by their combination with cancer vaccines. PeptiCRAd was able to increase the number of antigen-specific T cells and PD-L1 blockade prevented their exhaus- tion, resulting in long-lasting immunological memory and increased median survival