A study on hypersurface of complex space form

We show that quasi-umbilical, generalized quasi-umbilical, super quasi-umbilical hypersurfaces of a complex space form are quasi-Einstein, mixed generalized quasi-Einstein and mixed super quasi-Einstein manifolds, respectively. We also prove that a Bochner at space of generalized complex space form is an Einstein manifold

Dynamics of Crossover from a Chaotic to a Power Law State in Jerky Flow

We study the dynamics of an intriguing crossover from a chaotic to a power law state as a function of strain rate within the context of a recently introduced model which reproduces the crossover. While the chaotic regime has a small set of positive Lyapunov exponents, interestingly, the scaling regime has a power law distribution of null exponents which also exhibits a power law. The slow manifold analysis of the model shows that while a large proportion of dislocations are pinned in the chaotic regime, most of them are pushed to the threshold of unpinning in the scaling regime, thus providing insight into the mechanism of crossover.Comment: 5 pages, 3 figures. In print in Phy. Rev. E Rapid Communication

Performance Evaluation of wide Bandwidth RF Signal Generator Chip

The work in this paper is to give an overview of the compact wide band RF signal generator board design, emphasizing on the analyses and evaluation of the performance characteristics corresponding to the output signal purity and stability. The paper describes the design aspects involved in developing a reliable RF generating source which includes details regarding the factors that have taken care for optimum output power, spectral purity and noise performance. The simulation results obtained from the tool given by Maxim integrated are used as reference to evaluate the actual board when it is realised. These results are shown here for reference. Design aspects such as the power supply, noise filtering, loop filter component selection board layout consideration along with easy and compact form factor is considered. The board contains not only the signal generator device but also an FPGA from Xilinx to control the device, to make the board more useful for future applications; the board also has an SDRAM and an USB controller. This paper mainly concentrates on to MAX2870 signal generator and simulation results obtained by EE-Sim tool. Since the actual board is still in the process of being developed, the comparison of the actual performance to the simulation performance may not be possible at this point of time but definitely is in pipeline

Analysis and Edge Detection of Lung Cancer – Survey

Treating cancer in the early stages can provide more treatment options, less invasive surgery, and increases the survival rate. This paper deals with the detection of cancerous cells from Lungs CT scan images. To analyze the cancerous cells, physicians tackle many challenging tasks. Locating lung cancer at an early stage is a challenging task since there are few or no symptoms in this stage of the disease and majority of the cases are diagnosed in the later stages of the disease. The majority of lung cancers originate as a small growth or nodule in the lung. Screening CT scans are extremely sensitive in detecting nodules as small as 2 or 3mm within the lungs. CT screening is efficient in locating majority of lung cancers. Lung CT Scan helps in detecting lung cancers at an early stage when compared with other scans like MRI, X-Ray, etc. This present work proposes a method to detect the cancerous cells effectively from the CT scan images by reducing the detection error made by the physicians’ naked eye for medical study based on canny edge detection

A Survey: Massive MIMO for next Generation Cellular Wireless Technologies

The rapid development of MIMO technology in the area of wireless communications is to setting up of base stations with large number of antennas to improvements in energy and spectral efficiency. In this paper a detailed survey on massive technology, its advantages and comparison with existing method are proposed. The Long Term Evolution (LTE) has been designed to support only packet-switched services and is aimed to provide IP connectivity between UE and eNodeB. As we move forward to5G becoming more promising next generation technology with increase in capacity, reduced latencies, support of very high frequencies (mmWave) with a smaller size single antenna, smaller the aperture for receiving energy. To overcome this small aperture on receiver side at high frequency, we need to use a large number of transmission antenna. This would be the main reason to use the Massive Multiple Input Multiple Outputs (MIMO).This paper focused on the massive MIMO performance, the gain, and return losses of different antennas operating at different frequencies

A rare case of primary vaginal carcinoma in prolapsed uterus

Primary carcinoma is rare in gynaecological neoplasia. Vaginal carcinoma in prolapse uterus is extremely rare. We hereby present a case of 55-year-old P3L3 postmenopausal woman with complete uterine prolapse with fungating growth of 6x8 cm with two decubitus ulcers of 1x1 cm. Marginal biopsy showed well-differentiated squamous cell carcinoma of vagina. Investigation was done showed no metastasis. Patient was diagnosed with stage 2 disease. Patient underwent 5 cycles of chemotherapy with 2 cycles of radiotherapy and is being followed up. The importance of biopsy of ulcer in cases of UV prolapse in order to exclude malignancy to avoid incomplete treatment has been illustrated through this case. The need of careful evaluation of vaginal erosions in pelvic organ prolapse has been highlighted. As there is lack of well-defined treatment protocols for vaginal cancer with concurrent prolapse, the case also underlines the importance of a multidisciplinary approach involving gynaecological oncology, urogynaecology, medical oncology, surgical oncology and radiation oncology

STUDY OF PREVALENCE AND ANTIMICROBIAL SUSCEPTIBILITY PATTERN OF BACTERIAL ISOLATES IN A TERTIARY CARE HOSPITAL

Objective: Many human illnesses are bacterial in origin which can be treated with appropriate antibiotics and selection of these is mostly based on culture and sensitivity. The problem of antimicrobial resistance has burgeoned throughout the world both in inpatients and outpatients. We must work together to preserve the power of antimicrobials so as to use these effectively in treating diseases. The aim of the study is to find out the prevalence of infection and sensitivity pattern among bacterial pathogens in a tertiary care hospital.Methods: This retrospective study was carried out in Vinayaka Missions Medical College and Hospital, Karaikal, Puducherry (U. T) to study the culture and sensitivity pattern of clinical isolates from blood, urine, sputum, wound, ear/throat swab for one year (June 2012- June 2013). The positive cultures and their antibiotic susceptibility testing were performed under the guidelines of Clinical and Laboratory Standard Institute (CLSI). The lab data from Microbiology department were utilized and filled in a proforma and analyzed.Results: Out of 788 samples, 296 were culture positive. Isolated bacteria were mostly Gram negative organisms (GNO) of which Klebsiella (41.55%) was commonly followed by Pseudomonas (15.20%), Escherichia coli(4.05%) and Proteus (3.71%). Among Gram positive organisms (GPO) Staphylococcus (35.47%) was common. Imipenem (100%), Gentamycin (90.20%), Amikacin (89.14%), were the antimicrobials most sensitive for GNO, while Ceftriaxone (100%), Cefotaxime(100%),Nitrofurantoin(96.15%) and Linezolid(92.13%) were most sensitive for GPO. Widespread resistance to Nalidixic acid (99%),Ampicillin (85.90%), Cefuroxime (75%) is seen in both groups, while Cefazolin(79.25%) and Norfloxacin(83%) was noted for GNO, resistance to Amoxicillin with clavulanic acid (81.66%) and Imipenem(55.55%) was noted for GPO.Conclusion: The technical abilities to detect novel, resistant mechanisms and to overcome the microbial resistance has to be improved. Antibiotic policies agreed among clinicians, microbiologists and pharmacologists will guide good prescribing, provide maximum coverage for treating infections and ensure antibiotic cycling.Â

AWARENESS OF VTU CONSORTIUM AND CLOUD-BASED ONLINE RESOURCES IN THE VTU ENGINEERING COLLEGE LIBRARIES

Modern academic libraries should well be equipped with online resources along with print resources. Libraries are facing a transition period from print to electronic. The younger generation prefers to refer to the digital form of resources quickly. VTU Consortium is a blessing for readers, who are studying/working in VTU affiliated colleges. To meet the industrial requirements, one who updates his/her knowledge up to global and industrial standards. It can be achieved only by referring to current journals. VTU consortium has given that chance to library users to access world-class eJournals and eBooks on their campuses just by clicking the mouse. This study focuses on the usage of electronic resources subscribed through VTU consortium by students and teaching fraternity and how those resources being utilized by users. This paper gives the idea of promoting these resources at the college level