Dual-Band 8x8 Adaptive Array Antenna for 3.5/5 GHz

This paper gives  result analysis for the adaptive antenna array is expected to meet data rate requirement for 4G communication for Direct Sequence CDMA (DS-CDMA) antenna application.In this paper 4G smart planner dual band phase array suitable Long Term Evolution (LTE) at 3.5 GHz for fourth generation (4G)and also Wireless Local Area Network(WLAN) at 5GHz system isdeveloped. The proposed planar array antenna is build using micro strip U slotted patch antenna element. Separate feeding techniques are used for every element of the smart planar array antenna and elevation direction at Sixty degree phase shift absent of any grating lobes. At Sixty degree phase shift, the gain is to be 22.62dB without changing in the mutual coupling. In this single element and linear sub arrays with 1x2 and 1x4 dimension of this element are designed

Effect of Arch Height on Dynamic Balance and Neuromuscular Control in Young Adults

The foot, functioning as a lever to support our body weight during movement, can present with structural differences like a smaller arch height resulting in pes planus or flat feet, or a higher arch height which is called pes cavus. Commonly, arch height develops with age, as infants are born with flat feet and, as they grow, their arches develop until the ages of 10-13 years. Dysfunction in the foot from abnormal arches has been shown to impact foot function and ankle stabilization, which can influence sports performance and injury risk. Dynamic balance is an important aspect of many different types of sports and can be an indicator of good performance. The purpose of this study is to inform clinicians and athletes of the effects of different arch heights on dynamic balance and muscle activation, so that correct interventions can be implemented to improve performance. This study looked at 15 healthy young adults between the ages 23- 25 years. We evaluated arch height index (AHI) by scanning the volume of their foot in a single leg stance of their dominant leg. Participants then performed three trials of the Star Excursion Balance Test (SEBT) to evaluate dynamic balance. A motion capture system was used to obtain reach distance, center of pressure sway on a force plate and muscle activation of muscles of the thigh and shank. This study aims to conclude how dynamic balance is impacted by arch height looking at correlations between arch height and each of the variables. Our results will demonstrate how different muscles might activate across different arch heights. Practitioners might then implement exercises to target specific muscles that are under or over utilized

Comparison between Mifepristone and Ulipristal acetate as an alternative to surgical management of uterine fibroids (Leiomyoma) in symptomatic patients of reproductive age group in Asian population

Background: Present study was a randomised prospective observational study carried out at Ashakiran Hospital and IVF centre Pune, Maharashtra, India to evaluate the efficacy, safety, and quality of life by using Ulipristal acetate 10 mg and Mifepristone 25 mg daily doses to treat uterine fibroids of two subgroups involving fibroids <3 cm and fibroids 3 to 5 cm all are in reproductive age group with symptomatic in nature over 3 months.Methods: A total number of 40 patients were recruited in the study of which they were divided into two groups according to the size of the fibroid as <3cm and 3-5cm as seen on transvaginal as well as transabdominal ultrasound. Further they were randomly assigned to either mifepristone or ulipristal orally with each category having 10 patients each to assess changes in fibroid size, in symptomatic pain reduction, menorrhagia and in quality of life.Results: The 25-mg dosage of Mifepristone is shown to be a good and effective way of treatment in fibroids less than 3 cm in achieving 40% reduction in size and 50% reduction in menorrhagia as compared to Ulipristal 10 mg which acts better in other subgroup of size 3-5 cm of fibroids.Conclusions: Still larger RCTs are needed to study the long-term benefits of these drugs

Ulipristal acetate (UPA) for fibroids–IVF outcomes following treatment with UPA after IVF failure: series of 2 case reports

Uterine fibroids (also known as leiomyomas or myomas) are the most common form of benign uterine tumors. Fibroids are present in 5-10% of infertile patients, and may be the sole cause of infertility in 1-2.4%. The removal of fibroids by hysteroscopy and laparoscopy has now become the standard of care depending upon the size, number and location of fibroids in an infertile woman. Off lately, there is growing evidence of the crucial role of progesterone pathways in the pathophysiology of uterine fibroids due to the use of selective progesterone receptor modulators (SPRMs) such as ulipristal acetate (UPA). Here, we report a case series of 2 women, with fibroids, who were put on UPA prior to IVF. These women had at least one previous IVF failure. The pre and post UPA fibroid characteristics were compared to see the effect of the drug. IVF was done post 3 month UPA therapy. Both the women showed a drastic reduction in the fibroid size, increased distance from endometrial cavity, and successful post UPA IVF cycles. Safety of the drug has been proven in few recent trials, but the role of UPA in infertile women with fibroids, who have had previous IVF failure, has opened new horizons in this field

GNSScope and the split chip compression technique

The presence of multipath due to obstructions on the signal path coupled with transmitter and channel based perturbations, can significantly degrade the quality of the received satellite navigation signals, resulting in the non-detection of weaker visible satellites, loss of lock on acquired satellites, and increased pseudo-range errors. In this paper, we present a novel technique based on the binary-valued signal compression method, for the detection, identification and compensation of pseudo ranging code discrepancies and signals on the multipath. Following a brief overview of the system, simulation case studies carried out entirely using the in-house developed satellite navigation receiver development, emulation and analysis platform Global Navigation System Scope (GNSScope) will be presented verifying the results

A fully CNN based fingerprint recognition system

In this paper, a fully cellular neural networks (CNN) based fingerprint recognition system is introduced. The system includes a preprocessing phase where the input fingerprint image is enhanced and a recognition phase where the enhanced fingerprint image is matched with the fingerprints in the database. Both preprocessing and recognition phases are realized by means of CNN approaches. A novel application of skeletonization method is used to perform ridgeline thinning which improves the quality of the extracted lines for further processing, and hence increases the overall system performance

Discovery of a giant radio halo in a new Planck galaxy cluster PLCKG171.9-40.7

We report the discovery of a giant radio halo in a new, hot, X-ray luminous galaxy cluster recently found by Planck, PLCKG171.9-40.7. The radio halo was found using Giant Metrewave Radio Telescope observations at 235 MHz and 610 MHz, and in the 1.4 GHz data from a NRAO Very Large Array Sky Survey pointing that we have reanalyzed. The diffuse radio emission is coincident with the cluster X-ray emission, has an extent of ~1 Mpc and a radio power of ~5x 10^24 W/Hz at 1.4 GHz. Its integrated radio spectrum has a slope of alpha~1.8 between 235 MHz and 1.4 GHz, steeper than that of a typical giant halo. The analysis of the archival XMM-Newton X-ray data shows that the cluster is hot (~10 keV) and disturbed, consistent with X-ray selected clusters hosting radio halos. This is the first giant radio halo discovered in one of the new clusters found by Planck.Comment: 9 pages, 8 figures and 4 tables. Corrected Figure 7. Matches ApJ published versio

The Extended GMRT Radio Halo Survey I: New upper limits on radio halos and mini-halos

A fraction of galaxy clusters host diffuse radio sources called radio halos, radio relics and mini-halos. We present the sample and first results from the Extended GMRT Radio Halo Survey (EGRHS)- an extension of the GMRT Radio Halo Survey (GRHS, Venturi et al. 2007, 2008). It is a systematic radio survey of galaxy clusters selected from the REFLEX and eBCS X-ray catalogs . Analysis of GMRT data at 610/ 235/ 325 MHz on 12 galaxy clusters are presented. We report the detection of a newly discovered mini-halo in the cluster RXJ1532.9+3021 at 610 MHz. A small scale relic (~200 kpc) is suspected in the cluster Z348. We do not detect cluster-scale diffuse emission in 11 clusters. Robust upper limits on the detection of radio halo of size of 1 Mpc are determined. We also present upper limits on the detections of mini-halos in a sub-sample of cool-core clusters. The upper limits for radio halos and mini-halos are plotted in the radio power- X-ray luminosity plane and the correlations are discussed. Diffuse extended emission, not related to the target clusters, but detected as by-products in the sensitive images of two of the cluster fields (A689 and RXJ0439.0+0715) are reported. Based on the information about the presence of radio halos (or upper limits), available on 48 clusters out of the total sample of 67 clusters (EGRHS+GRHS), we find that ~23% of the clusters host radio halos. The radio halo fraction rises to ~31%, when only the clusters with X-ray luminosities >8x10^44 erg/s are considered. Mini-halos are found in ~50 % of cool-core clusters. A qualitative examination of the X-ray images of the clusters with no diffuse radio emission indicates that a majority of these clusters do not show extreme dynamical disturbances and supports the idea that mergers play an important role in the generation of radio halos/relics.Comment: 21 pages, 18 figures, 3 tables, accepted for publication in A&

On the occurrence of Radio Halos in galaxy clusters - Insight from a mass-selected sample

Giant radio halos (RH) are diffuse Mpc-scale synchrotron sources detected in a fraction of massive and merging galaxy clusters. An unbiased study of the statistical properties of RHs is crucial to constrain their origin and evolution. We aim at investigating the occurrence of RHs and its dependence on the cluster mass in a SZ-selected sample of galaxy clusters, which is as close as possible to be a mass-selected sample. Moreover, we analyse the connection between RHs and merging clusters. We select from the Planck SZ catalogue (Planck Collaboration XXIX 2014) clusters with $M\geq 6\times10^{14} M_\odot$ at z=0.08-0.33 and we search for the presence of RHs using the NVSS for z<0.2 and the GMRT RH survey (GRHS, Venturi et al. 2007, 2008) and its extension (EGRHS, Kale et al. 2013, 2015) for 0.2<z<0.33. We use archival Chandra X-ray data to derive information on the clusters dynamical status. We confirm that RH clusters are merging systems while the majority of clusters without RH are relaxed, thus supporting the idea that mergers play a fundamental role in the generation of RHs. We find evidence for an increase of the fraction of clusters with RHs with the cluster mass and this is in line with expectations derived on the basis of the turbulence re-acceleration scenario. Finally, we discuss the effect of the incompleteness of our sample on this result.Comment: 11 pages, 7 figures, accepted for publication in A&