Power Allocation Strategies for Wireless Relay Networks with Analog Network Coding: Survey

Relay aided communication with network coding can bring spectacular performance enhancements for wireless networks. The proper design of power allocated to each of the nodes involved in the communication is essential as it has impact on the performance when Analog Network coding (ANC) is used. This paper presents a survey on recent power allocation strategies, intended objectives, practical constraints that have been considered, and corresponding performances for networks with ANC protocol

Multiple myometrial cysts micmicking multiple fibroid uterus

Adenomyosis is the presence of endometrial glands and stroma in the context of the myometrium, with adjacent smooth muscle hyperplasia. It may be diffuse or cystic. Adenomyotic cysts of the uterus are extremely rare. A 31 years old nulligravida woman presented to our OPD with complaints of severe dysmenorrhea and back pain since 8 months. Transvaginal ultrasound revealed retroverted uterus with diffuse adenomyosis with intramyometrial endometriotic cysts in both cornual areas, both adnexa showing multiple small endometriotic cysts. On Laparoscopy – cystic masses around 5x4cm was found near the cornua and anterior uterine wall, which were excised and diagnosed as adenomyotic cyst on histopathology

The great Indian haze revisited: aerosol distribution effects on microphysical and optical properties of warm clouds over peninsular India

The Indian subcontinent is undergoing a phase of rapid urbanisation. Inevitable fallout of this process is a concomitant increase in air pollution much of which can be attributed to the infamous great Indian haze phenomena. One observes that the aerosol size distributions vary considerably along the Bay of Bengal (BOB), Arabian Sea (AS) and the Indian Ocean (IO), although, the dynamical attributes are very similar, particularly over the BOB and the AS during this season. Unlike major European studies (e.g. Aerosol Characterization Experiment-2, Ghosh et al., 2005), there are no cloud microphysical modelling studies to complement these observational results for the Indian sub-continent. Ours is the first modelling study over this important region where a time-tested model (O'Dowd et al., 1999a; Ghosh et al., 2007; Rap et al., 2009) is used to obtain cloud microphysical and optical properties from observed aerosol size distributions. Un-activated aerosol particles and very small cloud droplets have to be treated specially to account for non-ideal effects-our model does this effectively yielding realistic estimate of cloud droplet number concentrations (Nc). Empirical relationships linking aerosol concentration to (Nc) yield a disproportionately higher Nc suggesting that such empirical formulations should be used with caution. Our modelling study reveals that the cloud's microphysical and optical properties are very similar along the AS and the BOB despite them having disparate dry aerosol spectral distributions. This is non-intuitive, as one would expect changes in microphysical development with widely different aerosol distributions. There is some increase in cloud droplet numbers with increased haze concentrations but much less than a simple proportion would indicate

DESIGN, SYNTHESIS OF BIOLOGICALLY ACTIVE HETEROCYCLES CONTAINING INDOL- THIAZOLYL- THIAZOLIDINONE DERIVATIVES

 Objective: The present study envisage a novel series of thiazole, indole and thiazolidine derivatives, namely, N-((5-Substituted-2-phenyl-1 H-indol-3-yl)methylene)-4,5,6,7-tetrahydro-5,7,-dimethylbenzo [d]thiazole-2-amine (4a-c), 2-(5-substituted-2-phenyl-1H-indol-3-yl)-3-(4,5,6,7- trimethylbenzo[d]thiazol-2-yl)-thiazolidin-4-one (5a-c) and 5-benzylidine-2-(5-substituted-2phenyl-1H-indol-3yl)-3-(4,5,6,7-tetrahydro-5,5,7- trimethylbenzo[d]thiazol-2-yl) thiazolidin-4-one (6a-c).Methods: All the newly synthesized compounds were characterized by infrared, 1H, 13C nuclear magnetic resonance and mass spectral data and elemental analysis and evaluated for in vitro antimicrobial activity.Results: Novel compounds N-((5-Substituted-2-phenyl-1H-indol-3-yl)methylene)-4,5,6,7-tetrahydro-5,7,-dimethylbenzo [d]thiazole-2-amine (4a-c), 2-(5-substituted-2-phenyl-1H-indol-3-yl)-3-(4,5,6,7-trimethylbenzo[d]thiazol-2-yl)-thiazolidin-4-one (5a-c) and 5-benzylidine-2-(5-substituted- 2phenyl-1H-indol-3yl)-3-(4,5,6,7-tetrahydro-5,5,7-trimethyl benzo[d]thiazol-2-yl)thiazolidin-4-one (6a-c) have been made and characterized using spectral and analytical data. The results of antibacterial and antifungal activities showed that some of the synthesized compounds exhibited promising activities.Conclusion: All the newly synthesized compounds were carried out by the broth microdilution method (NCCLS. 2002) in a DMF concentration of 500, 250, 125, and 62.5 μg/ml. Gentamycin and fluconazole are used as reference standards for antibacterial and antifungal activity, respectively. The final results revealed that compounds 4b, 5b, and 6b exhibited potent antimicrobial activity when compared to the standard drugs.Â

Female genital tuberculosis and ndash; still a common cause of primary amenorrhea in developing countries

Primary amenorrhea is defined as, no menses by age 14yrs in absence of growth or development of secondary sexual characteristics and no menses by age 16yrs regardless of the presence of normal growth or development of secondary sexual characteristics. Although pulmonary tuberculosis remains the commonest and the most infectious type of tuberculosis, extra pulmonary tuberculosis is becoming more prevalent especially in young women throughout the world. We report a case of young woman presenting as primary amenorrhea apparently having no signs and symptoms of tuberculosis. 20 yrs old unmarried girl was referred for primary amenorrhea with normal secondary sexual characters and presence of uterus, tubes and ovaries on abdominal scan. Hormonal assay and karyotyping was normal. She had negative progesterone challenge test and estrogen progesterone challenge test. Diagnosis of genital tuberculosis was confirmed by diagnostic hysterolaparoscopy and positive tubercular polymerase chain reaction and culture. Hysterolaparoscopy is a key tool for confirmation of diagnosis in cases of primary amenorrhea when the dilemma exists. [Int J Reprod Contracept Obstet Gynecol 2016; 5(8.000): 2891-2894