145 research outputs found

    Temperature Distribution during Single Pass Multi-Layer Welding in Additive Manufacturing

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    Single bead welding, is a high-speed welding process that is used for manufacturing of thin walled components. Its application is a vast field of research to assess its ability to manufacture complex products. This is different from the conventional welding of two similar and dissimilar materials in which the focus lies on joining of the two metals. This process is used for the creation of a completely new component by weld bead deposition of material

    Review on AMES-Cloud Using Preservation, Fetching and Decisive Video Streaming Over Cloud Computing

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    The video traffic demands are increasing over a mobile network through wireless link cannot corporate with the demand of video traffics. The increasing traffic demand is accounted by video streaming and downloading. Hence, there is a gap between link capacity and traffic demands along with the time varying condition which is result in the poor quality of video streaming service over a mobile network such as sending long buffering time and intermittent disruptions due to limited bandwidth and link condition. By leveraging cloud computing technology, we propose a new mobile video streaming framework which has two main parts : Efficient social video sharing and Adaptive mobile video streaming which built a private agent which provides video streaming service for each mobile user in the network efficiently. To demonstrate its performance we implement a prototype of AMES-Cloud framework. Thus, it is crucial to improve the video quality service of streaming while using the computing resource and networking efficiently and also provides preservation over cloud computing. DOI: 10.17762/ijritcc2321-8169.15010

    Peritoneal ultrafiltration: bridging the treatment gap to cardiac transplantation in refractory congestive heart failure management

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    Background: Peritoneal ultrafiltration needs consideration as a therapeutic option for improvement in echocardiographic parameters, tissue Doppler imaging, and patient clinical status in patients with refractory congestive heart failure.Methods: This prospective, non-randomised, two-year observational study from June 2012 to June 2014 included 19 clinic outpatients and in-patients admitted to the CARE hospital, Hyderabad. Baseline data was compared on initiation and after three months of ultrafiltration therapy. Out of 19 patients studied initially, 16 were alive and undergoing CAPD at 3 months.Results: 3 months post ultrafiltration, the ejection fraction (EF) improved significantly from 35.4±6.6 to 43.1±13.8 (p<0.01), right atrial volume index (RAVI) decreased significantly from 31.8±14.3 to 28.3±14.9 (P=0.016), inferior vena cava (IVC) diameter decreased significantly from 2.27±0.44 to 1.8±0.68 (P=0.01), pulmonary artery systolic pressure (PASP) decreased significantly from 50.7±14.4 mmHg to 38.1±15.6 mmHg (P<0.01), hospitalisation days decreased significantly from 17.5±8.3 to 1.7±3.4 days (P <0.0001) and the distance covered in the 6 minutes’ walk test (6MWT) increased significantly from 58.52 m±47.6 m to 176.4 m±80.7 m (p<0.0001). Except for 3 (17.6%) patients, significant patients that were NYHA class III and IV improved to NYHA class I and II (p <0.0001; Table 1).Conclusions: Ultrafiltration was safe and associated with significant improvements in echocardiographic parameters, NYHA functional class, physical performance (6MWT), and reduction of hospitalization days in patients with refractory congestive heart failure

    FPM: Fine Pose Parts-Based Model with 3D CAD Models

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    We introduce a novel approach to the problem of localizing objects in an image and estimating their fine-pose. Given exact CAD models, and a few real training images with aligned models, we propose to leverage the geometric information from CAD models and appearance information from real images to learn a model that can accurately estimate fine pose in real images. Specifically, we propose FPM, a fine pose parts-based model, that combines geometric information in the form of shared 3D parts in deformable part based models, and appearance information in the form of objectness to achieve both fast and accurate fine pose estimation. Our method significantly outperforms current state-of-the-art algorithms in both accuracy and speed

    Cancer of the uterine cervix and human papillomavirus infection

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    Human papillomaviruses (HPVs) have emerged as the principal sexually transmitted causal agents in the development of cancer of the uterine cervix in women. They also cause a variety of benign lesions, warts, intraepithelial neoplasia and anogenital, oral and pharyngeal papillomas. Presently, more than 100 HPV genotypes have been identified in humans, and about one-third of them have been sequenced. Of these, while HPV types 16 and 18 are considered to be the high-risk types, HPV 6 and 11 are the low-risk types in the development of cervical cancer. Evidence for causal role of HPV in the development of cervical neoplasia comes from the etiological and epidemiological observations together with the experimental findings of the molecular pathways elicited by HPV-transforming genes. Further evidence in favour of papillomavirus as the carcinoma virus comes from the findings of presence of HPV infections in cancers of oral, esophageal, larynx and nonmelanoma skin cancers. The oncogenic potentials of the virus have been attributed to its E6 and E7 genes. The products of these two genes stimulate cell proliferation by activating the cell-cycle-specific proteins and interfere with the functions of cellular growth-regulatory proteins, p53 and Rb. Identification and characterization of several human pathogenic HPV types warrant prevention of viral infection through vaccination or therapeutic intervention which could eventually control infection and expression of human pathogenic papillomaviruses

    A simple 'paper smear' method for dry collection, transport and storage of cervical cytological specimens for rapid screening of HPV infection by PCR

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    Human papillomaviruses (HPVs) are major pathogens associated with the development of cancer of the uterine cervix, the most common malignant tumour of women world-wide. Reliable diagnosis of HPV infection, particularly the 'high-risk' types (16/18), may facilitate early identification of 'high-risk' populations for developing cervical cancer and may augment the sensitivity and specificity of primary cervical cancer screening programmes by complementing the conventional Pap test. A simple paper smear method has been developed for dry collection, transport and storage of cervical smears/scrapes at room temperature for subsequent detection of HPV DNA by PCR assay. Imprint biopsies, blood and fine-needle aspirates were also collected by this method. The cervical scrapes or other body fluids were smeared (within 0.5-1 cm diameter) and dried on to sterile small slides made of Whatman 3MM filter paper, and stored individually at room temperature or at 4°C. A small piece (2-3 mm) of the paper smear was punched or cut out with a sterile surgical blade, boiled in an eppendorf tube containing 50 µl of distilled water for 5 min and used directly for PCR amplification. The quality and quantity of DNA derived from paper smears and the results of PCR amplifications for HPV type 16, BRCA1 and p53 genes were identical to those obtained from the same samples following collection in PBS, storage (-70°C) and phenol-chloroform-based DNA extraction. DNA was stable in the paper smears for up to a year, whether stored at room temperature or at 4°C. This method is simple, rapid and cost-effective, and can be effectively employed for large-scale population screening, especially for regions where the specimens are to be transported from distant places to the laboratory

    Selective Suppression of NF-kBp65 in Hepatitis Virus-Infected Pregnant Women Manifesting Severe Liver Damage and High Mortality

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    Fulminant hepatitis in Asian pregnant women is generally caused by hepatitis E virus infection, and extremely high mortality is most common in them. Decreased cell-mediated immunity is considered a major cause of death in these cases, but what exactly influences decreased immunity and high mortality specifically during pregnancy is not known. We used electrophoretic mobility shift assays, immunoblotting, and immunohistochemical analysis to study the expression and DNA binding activity of NF-kB p50 and NF-kB p65 in pregnant fulminant hepatic failure (FHF) patients and compared them with their nonpregnant counterparts. In both PBMC and postmortem liver biopsy specimens the DNA-binding activity of NF-kB was very high in samples from pregnant FHF patients compared with those from nonpregnant women as well as pregnant women with acute viral hepatitis (AVH) without FHF. Further dissection of the NF-kB complex in supershift assays demonstrated complete absence of p65 in the NF-kB complex, which is formed by homodimerization of the p50 component in pregnant FHF patients. Western blotting and immunohistochemical analysis of the expression of p50 and p65 proteins both showed higher levels of p50 expression and a complete absence or a minimal expression of p65, indicating its nonparticipation in NF-kB-dependent transactivation in pregnant FHF patients. We suggest that the exclusion of p65 from the NF-kB transactivation complex seems to be a crucial step that may cause deregulated immunity and severe liver damage, leading to the death of the patient. Our findings provide a molecular basis, for developing novel therapeutic approaches

    Detection of human papillomavirus DNA sequences in cancer of the urinary bladder by in situ hybridisation and polymerase chain reaction

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    Objective: To evaluate the prevalence of "high risk" human papillomavirus type 16 (HPV 16) in transitional cell carcinoma of the urinary bladder. Materials and Methods: The study included 10 biopsy specimens from male patients of transitional cell carcinoma of the urinary bladder for the detection of HPV DNA sequences. Specimens were collected from the Urology Clinic of the K.G. Medical College Hospital, Lucknow, India. Detection of HPV DNA was carried out by tissue in situ hybridisation (a single copy gene localisation method) using 3H-labelled HPV DNA probe and also by polymerase chain reaction (PCR) techniques using primers to HPV 16 upstream regulatory region (URR). RESULTS--Out of 10 cases of transitional cell carcinoma of the urinary bladder, "high risk" HPV 16 DNA was detected only in one (10%) by using in situ hybridisation whereas two cases (20%) were found to be positive by polymerase chain reaction. Conclusion: Our results suggest that the rare occurrence of HPV in bladder carcinoma may not have a causal relation with the viral infection

    Ublažavajući učinak biljke Andrographis paniculata na promjene u brojlera uzrokovane bakterijom E. coli

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    The present investigation was carried out to evaluate the ameliorative effect of Andrographis paniculata during E. coli-induced pathology in broilers. Day-old broiler chicks (n = 100) were randomly divided into four equal groups. Group I served as a negative control and was fed with a commercial diet. On day 8, the birds from groups II and IV were challenged with a single oral dose of E. coli broth culture 0.2 mL (1×109 cfu/mL). Groups III and IV were fed with Andrographis paniculata 5 g/kg of feed from day old to the end of the experiment. The total duration of the experiment was 35 days. On the 7th, 21st and 28th day post infection (DPI) with E. coli, six birds from each group were randomly sacrificed and observed for gross and histopathogical observations. Group II birds showed ascites and thickened intestinal mucosa with cheesy material on the 28th and 35th DPI. Pathomorphological alterations, viz. congestion, hemorrhages, degenerations, necrosis, fibrinous exudates, edema, mononuclear cell and heterophil infiltration in the lung, liver, heart, kidneys and duodenum were observed in group II birds, along with depletion of the lymphoid cell population in the spleen. Pretreatment of Andrographis paniculata in the E. coli challenged group led to mild degenerative changes in all organs, indicating the putative protective effect of the plant during E. coli induced pathology in broilers. However, further, more elaborated study is required to calculate the dosage of Andrographis paniculata for use as an antibacterial agent in broiler feed.Istraživanje je provedeno kako bi se procijenio ublažavajući učinak biljke Kineski andrografis (Andrographis paniculata) na patološke procese u brojlera uzrokovane bakterijom E. coli. Jednodnevni pilići (n = 100) slučajnim su odabirom podijeljeni u četiri jednake skupine. Prva je skupina poslužila kao negativna kontrola i hranjena je komercijalnom hranom. Osmi dan pilićima iz druge i četvrte skupine peroralno je dana jednokratna doza E. coli bujona u količini od 0,2 mL (1×109 cfu/mL). Treća i četvrta skupina hranjene su biljkom Andrographis paniculata u količini od 5 g/kg hrane od početka do kraja pokusa. Istraživanje je trajalo 35 dana. Sedmi, 21. i 28. dan nakon zaražavanja bakterijom E. coli po šest pilića iz svake skupine nasumce je usmrćeno te su promatrane makroskopske i patohistološke promjene. U drugoj je skupini uočen ascites i zadebljanje crijevne sluznice sa sirastim naslagama 28. i 35. dan poslije zaražavanja. U toj su skupini promatrane patomorfološke promjene poput kongestije, krvarenja, degeneracije, nekroze, fibrinskog eksudata, edema, infiltracije pluća, jetre, srca, bubrega i dvanaesnika mononuklearnim i heterofilnim stanicama, uz depleciju limfoidnih stanica u slezeni. Dodavanje biljke Andrographis paniculata skupini zaraženoj bakterijom E. coli utjecalo je na pojavu blažih degenerativnih promjena u svim organima, što upućuje na zaštitni učinak biljke tijekom izlaganja brojlera bakteriji E. coli. Potrebna su daljnja istraživanja kako bi se izračunala doza biljke Andrographis paniculata kao antibakterijskog dodatka/lijeka u prehrani brojlera
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