318 research outputs found

    The characteristic polynomials of abelian varieties of dimensions 4 over finite fields

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    We describe the set of characteristic polynomials of abelian varieties of dimension 4 over finite fields

    The Intersection of Two Fermat Hypersurfaces in P^3 via Computation of Quotient Curves

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    We study the intersection of two particular Fermat hypersurfaces in P3\mathbb{P}^3 over a finite field. Using the Kani-Rosen decomposition we study arithmetic properties of this curve in terms of its quotients. Explicit computation of the quotients is done using a Gr\"obner basis algorithm. We also study the pp-rank, zeta function, and number of rational points, of the modulo pp reduction of the curve. We show that the Jacobian of the genus 2 quotient is (4,4)(4,4)-split

    Formation of double ring patterns on Co2MnSi Heusler alloy thin film by anodic oxidation under scanning probe microscope

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    Double ring formation on Co2MnSi (CMS) films is observed at electrical breakdown voltage during local anodic oxidation (LAO) using atomic force microscope (AFM). Corona effect and segregation of cobalt in the vicinity of the rings is studied using magnetic force microscopy and energy dispersive spectroscopy. Double ring forma-tion is attributed to the interaction of ablated material with the induced magnetic field during LAO. Steepness of forward bias transport characteristics from the unperturbed region of the CMS film suggest a non equilibrium spin contribution. Such mesoscopic textures in magnetic films by AFM tip can be potentially used for memory storage applications.Comment: 7 pages, 5 figure

    THE EFFECT OF PLASTICIZER CONCENTRATION ON POLYMERIC TRANSDERMAL PATCH

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    An effort was made to formulate drug free transdermal patches by using different polymers like ethyl cellulose, poly vinyl pyrrolidone and eudragit. Four groups of twelve formulations of  drug free transdermal patches were prepared by solvent evaporation  technique in which each group have different plasticizer concentration and  evaluated for flatness, tensile strength, folding endurance, moisture content, Water vapor transmission rate (WVTR), percent elongation. The tensile strength and folding endurance of the patches prepared with 20% Di-n-butylphthalate as plasticizer was high compared to patches prepared by 10% and 15 % Di-n-butylphthalate. The result of 20% plasticizer indicated that the patches would not break and would maintain their integrity with general skin folding when used. All the formulations show 100 % flatness. The WVTR was not significantly affected by varying the concentration of plasticizer (Di-n-butylphthalate). At concentration of 25 % of plasticizer the tensile strength and percent elongation not shows significant result due to soft and sticky formulation. On the basis of above observations we can easily concluded that the Di-n-butylphthalate at concentration 20% of polymers used as plasticizer for further developmental studies. Key words: Di-n-butylphthalate, plasticizer, ethyl cellulose, tensile strength, transdermal patch

    Using Individual Decision, Economic, and Health Status Data to Predict Health Checkup Behavior

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    Annually, the Behavioral Risk Factor Surveillance System (BRFSS) survey is administered by the Centers for Disease Control and Prevention (CDC). This article uses 2016 SMART BRFSS data to predict the likelihood a person will get a health checkup and it identifies which factor(s) influence the decision to obtain a checkup. Patterns of individual decision making were analyzed using various supervised data mining techniques. The best predictive model, with a predictive accuracy of 80%, can improve future BRFSS surveys by better understanding the responses and provide insight into the factors affecting decisions. The model was scored on new data to verify its accuracy. These findings supplement ongoing research to identify how behavior leads to better decision making related to medical checkups. The model can help identify poor decision-makers in high-risk groups. This research can also be used by healthcare professionals to improve clinical prevention services. Potentially, the research can be extended by combining the BRFSS data with ICD-10 and CPT codes. Better knowledge of diagnosis (ICD-10) and the cost associated with diagnosis (CPT) will help to understand a person’s health behavior. In the United States, expenditures on healthcare are rising significantly every year. Health decisions of individuals determine the overall health of a nation. Therefore, the U.S. Government should initiate health programs that encourage individuals to make better health decisions

    Investigation of the Effect of Built Orientation on Mechanical Properties and Total Cost of FDM Parts

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    AbstractFused deposition modeling (FDM) is one of the rapid prototyping methods that produce prototypes from plastic materials such as acrylonitrile butadiene styrene (ABS) by laying tracks of semi-molten plastic filament onto a platform in a layer wise manner from bottom to top. In FDM, one of the critical factor is to select the build up orientation of the model since it affects the different areas of the model like main material, support material, built up time, total cost per part and most important the mechanical properties of the part. In view of this, objective of the present study was to investigate the effect of the built-up orientation on the mechanical properties and total cost of the FDM parts. Experiments were carried out on STRATASYS FDM type rapid prototyping machine coupled with CATALYST software and ABS as main material. Tensile and Flexural specimens were prepared as per the ASTM standard with different built-up orientation and in three geometrical axes. It can be concluded from the experimental analysis that built orientation has significant affect on the tensile, flexural and total cost of the FDM parts. These conclusions will help the design engineers to decide on proper build orientation, so that FDM parts can be fabricated with good mechanical properties at minimum manufacturing cost

    Study of Pap smear and other feasible tests among self reported symptomatic married women in reproductive age group (15-49 yrs) regarding reproductive tract infections in a rural community of Maharashtra

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    Background: Reproductive tract infections (RTIs) represent a major public health problem in developing countries. Integrating RTIs/STIs management and early detection of cervical dysplasia in broader reproductive health services can improve women’s health. The objectives of the study were 1. To study the association of socio-demographic & reproductive factors among self-reported symptomatic women for reproductive tract infections. 2. To carry out clinical examination & feasible tests like PH, gram staining, VDRL for reproductive tract infections.  3. To study Pap smear among study subjects.Methods: A cross sectional study community based study was carried out in villages under ‘Parol’ Primary Health Centre of Thane district, Maharashtra, India. A total of 415 married women in reproductive age group were interviewed and examined. Pre-structured, pre-designed questionnaire was used. Clinical examination & feasible laboratory tests were done. Results were analyzed with the help of Microsoft Excel & SPSS 15.  Results: A total of 415 women were interviewed, of them 263(63.4%) had one or more symptoms of reproductive tract infections. On examination, 69(35%) had cervicitis and 30(15.2%) pelvic inflammatory disease, 39(19.8%) bacterial vaginosis and candidiasis in 61(31%). Cervical erosion was present in 147(74.6%) women. On Pap smear, 20(10.2%) women had ASCUS (Atypical squamous cells of undetermined significance). Only 2(1%) women found HIV positive. No woman was found VDRL reactive.Conclusion: Routine RTI/STI screening and periodic surveys to detect the infection patterns which will helps to control HIV infections in the community is needed in the remote tribal area as the current study shows high prevalence of reproductive tract infection.
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