Point Counting On Genus 2 Curves

For cryptographic purposes, counting points on the jacobian variety of a given hyperelliptic curve is of great importance. There has been several approaches to obtain the cardinality of such a group, specially for hyperelliptic curves of genus 2. The best known algorithm for counting points on genus 2 curves over prime fields of large characteristic is a variant of Schoof’s genus 1 algorithm. Following a recent work of Gaudry and Schost, we show how to speed up the current state of the art genus 2 point counting algorithm by proposing various computational improvements to its basic arithmetical ingredients

Chronic urticaria associated with malignancies: A review article

BACKGROUND: Chronic urticaria is a cutaneous disorder defined by the presence of hives and flare for over six weeks. Etiology of chronic urticaria is not clear in 80 to 90 percent of patients. Malignancies are possible associations with allergic disorders such as urticaria. The purpose of this article was to review the expression of chronic urticaria with various malignancies.METHODS: We searched in PubMed, Scopus, and EMBASE databases in English using the keywords chronic urticaria, urticarial, malignancy, and cancer. Inclusion criteria were both full and brief articles, case reports, case series, and original article up to June 2018.RESULTS: We found 258 articles on the primary search. After screening by two researchers, 23 articles were included. Most studies failed to find a link between hives and malignancy. Four studies showed a relationship between hives and malignancy. Five studies showed no relationship between hives and malignancy, and suggested that urticaria could even have a protective effect. As there were no homogenous results, we could not write a meta-analytic study.CONCLUSION: The relationship between chronic urticaria and malignancy is not clear. We need a more organized researches to clarify the association between urticaria and malignancies

The effect of the audit report on the relevance of accounting information

To increase public confidence to invest in the stock of listed companies on the Stock Exchange, accounting information should have qualitative features such as relevance, reliability, comparability, and intelligibility. The accounts must be audited for users to trust this financial information. According to the separation of ownership and management, discussion of corporate governance as well as related theories have been proposed such as the agencies which have been proposed, the need to audit financial statements is absolutely necessary. The audit creates added value for financial statements. Thus, the aim of this paper is investigation the effect of the audit report on the relevance of accounting information. Testing hypotheses have been investigated by using cross-sectional data of 105 companies among the listed companies in Tehran Stock Exchange in 2011 to 2015. The results indicated that there is a significant relationship between the audit firm, the efficiency of assets, and the ratio of financial independence to the rate of efficiency; but the Stock returns has not been affected by audit report with independent variables. Fitting of the second hypothesis indicated that the return on assets and financial independence in companies with the conditional report is more than in companies with the qualified report. Also, the financial independence in companies which have been audited by large firms is greater than in companies which have been audited by other firms

Designing an appropriate adaptive controller for synchronizing a bi-oscillator heart model with time delay

In this paper, synchronization of heart follower oscillator which has lower frequency AV with heart leader oscillator which has dominant frequency SA will be studied. It can be seen if two nodes SA and AV are not synchronized, different types of cardiac blocking arrhythmias occur. Thus, in this paper, beside putting voltage to node SA, by applying time delay in bi-oscillator model of heart system and designing appropriate controller via linear and adaptive methods, we try to prevent blocking arrhythmias of heart. Finally, we apply Lyapanuv stability theorem for ensuring convergence

Abdominal Burkitt’s lymphoma in Children

Background: Burkitt’s lymphoma is a high grade B-cell neoplasm, which is a kind of small non-cleaved cell lymphoma. It is presumably the fastest growing human malignancy, and the patients are prone to develop tumor-lysis syndrome. Here we present findings on our patients with Burkitt lymphoma. Materials and Methods: This descriptive retrospective study included 46 children with abdominal Burkitt's lymphoma who were treated during 15 years from June 1998 to Dec 2013 at Mofid Children’s Hospital. Results: Offourty six patients 32 (70%) were boys and 14 (30%) were girls with ages ranging from 2 to 14 years. Surgical exploration was carried out in all cases, the lesions were located in the small intestine (N=17), large intestine (N=15), ileocecal region (N=12), and stomach (N=2). We performed a complete mass resection in 16 cases, debulking in 10 and lymph node/mass biopsy in 20 cases. Pathologic examination revealed Burkitt’s lymphoma for all patients. The majority were stageIIE and stage IIIE (24 and 19 respectively). Post-operative complications were seen in five cases with the most common being persistent ileus. All patients received a sort of systemic chemotherapy. The mean follow up duration was 6 years. Death occurred in 7(15%) of our patients, due to tumor lysis syndrome and acute renal failure.Conclusion: The extent ofdisease at presentation is the most important prognostic factor in abdominal Burkitt’s lymphoma. Children with BL are at a high risk of tumor lysis syndrome before or during chemotherapy. Surgery still plays an important role in this pathology, and chemotherapy offers an excellent chance for long term disease free survival.

Predictive Factors for Juvenile Delinquency: The Role of Family Structure, Parental Monitoring and Delinquent Peers

The aim of this research was to investigate the role of family structure, parental monitoring and affiliation with delinquent peers in predicting juvenile delinquency. In this Cross-sectional study, 96 delinquent adolescents and 91 non-delinquent adolescents, chosen through a convenient sampling in Tehran, completed parental monitoring inventory and affiliation with delinquent peers scale. Data was analyzed using Logestic regression analysis. Reliability of the questionnaires verified using internal consistency and test-retest methods. Regarding Logestic regression analysis results, among predicting variables, family structure and affiliation with delinquent peers were significant predictors of juvenile delinquency. These factors could explain 29 to 39 percent of delinquency variance. Parental monitoring was also unable to predict delinquency, but it could significantly predict affiliation with delinquent peers. The results of the present study were in line with results of the previous researches and showed that distress in family structure and affiliation with delinquent peers have a significant role in the delinquency phenomenon. Therefore, it seems necessary to consider these factors as influential factors in promoting delinquency

Designing and Developing the Self-Cleaning Property of Drivers’ Dress Using TiO2 Nanoparticles

Considering increasing development of nano-technology science and its wide use in most industries, textile industry was not excluded and manifested its capability in all fields accompanied with other sciences and achieved remarkable progress. Since interdisciplinary scientific research causes developing sciences and is attended by many specialists, in this research a beneficial step was provided applying dress design and textile chemistry sciences for more productivity of interdisciplinary discussions. In this study, the design of the drivers’ uniform and their self-cleaning property were analyzed. In a way that; first, cotton fabric samples were treated using TiO2 nanoparticles and poly carboxylic agent. Then, cotton fabric self-cleaning amount were evaluated and optimized. Based on the obtained results, drivers’ uniform design with self-cleaning property against chemical and natural stains was gained, utilizing optimized amounts of TiO2 nanoparticles. Therefore, the dress design applying nanotechnology discussions was effectively capable of having self-cleaning property in order to discolor natural color stains like tomato, sour cherry water, chocolate milk, gasoil, grease, oil, and chemical blue (C.I. Reactive Blue 19) and green (C.I. Direct Green 1) regarding scientific principles