26 research outputs found

    The Ramsey number of loose paths in 3-uniform hypergraphs

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    Recently, asymptotic values of 2-color Ramsey numbers for loose cycles and also loose paths were determined. Here we determine the 2-color Ramsey number of 3-uniform loose paths when one of the paths is significantly larger than the other: for every n5m4n\geq \Big\lfloor\frac{5m}{4}\Big\rfloor, we show that R(\mathcal{P}^3_n,\mathcal{P}^3_m)=2n+\Big\lfloor\frac{m+1}{2}\Big\rfloor.$

    Data on copper level in the blood of patients with normal and abnormal angiography

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    In this data article, we measured the levels of copper in the blood of patients undergoing coronary angiography. The samples were taken from patients with cardiovascular disease in Bushehr's university hospital, Iran. Patients were divided in two groups: normal angiography and abnormal angiography. After the chemical digestion of samples, the concentration levels of Cu in both groups were determined by using inductively coupled plasma optical spectrometry (ICP-OES). & 2016 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY licens

    The Correlation between Using Social Networks and the General Health of Multiple Sclerosis Patients

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    Background. Multiple sclerosis (MS) threatens the patients' independency and ability to effectively participate in the society. The aim of this study was to determine the correlation between using social networks on the general health of multiple sclerosis patients.Methods. This study was performed on 80 MS patients referring to Shiraz University of Medical Sciences, Chamran, and Imam Reza Hospital in 2017, whose condition had improved and were treated by a specialist physician. Tools for data collection were general health questionnaire (GHQ-28) and social networks use questionnaires.Results. Amongst the 80 individuals with MS, 65 (81.3%) were female and 15 (18.8%) were male. Our results suggest that patients with higher levels of education had higher levels of health (P=0.01). Telegram and WhatsApp, respectively, had a positive correlation with general health (P=0.007,P=0.007), anxiety (P=0.003,P=0.028), and social dysfunction (P=0.007,P=0.007). WhatsApp with 33.64% was the most popular application among MS patients. The correlation between general health and duration of using social networks was not statistically significant (r=0.22,P=0.06). Also, no significant correlation was found between the duration of using social networks and the general health (P=0.62).Conclusion. Our findings suggest that social networks, especially Telegram and WhatsApp, had a positive correlation with general health, anxiety, and social dysfunction of patients. Therefore, the use of social networks can be considered as a suitable option in reducing the aforementioned concerns among patients with MS. On the other hand, general health and mood status might as well influence the use of social network in MS patients

    The global burden of cancer attributable to risk factors, 2010-19 : a systematic analysis for the Global Burden of Disease Study 2019

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    Background Understanding the magnitude of cancer burden attributable to potentially modifiable risk factors is crucial for development of effective prevention and mitigation strategies. We analysed results from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2019 to inform cancer control planning efforts globally. Methods The GBD 2019 comparative risk assessment framework was used to estimate cancer burden attributable to behavioural, environmental and occupational, and metabolic risk factors. A total of 82 risk-outcome pairs were included on the basis of the World Cancer Research Fund criteria. Estimated cancer deaths and disability-adjusted life-years (DALYs) in 2019 and change in these measures between 2010 and 2019 are presented. Findings Globally, in 2019, the risk factors included in this analysis accounted for 4.45 million (95% uncertainty interval 4.01-4.94) deaths and 105 million (95.0-116) DALYs for both sexes combined, representing 44.4% (41.3-48.4) of all cancer deaths and 42.0% (39.1-45.6) of all DALYs. There were 2.88 million (2.60-3.18) risk-attributable cancer deaths in males (50.6% [47.8-54.1] of all male cancer deaths) and 1.58 million (1.36-1.84) risk-attributable cancer deaths in females (36.3% [32.5-41.3] of all female cancer deaths). The leading risk factors at the most detailed level globally for risk-attributable cancer deaths and DALYs in 2019 for both sexes combined were smoking, followed by alcohol use and high BMI. Risk-attributable cancer burden varied by world region and Socio-demographic Index (SDI), with smoking, unsafe sex, and alcohol use being the three leading risk factors for risk-attributable cancer DALYs in low SDI locations in 2019, whereas DALYs in high SDI locations mirrored the top three global risk factor rankings. From 2010 to 2019, global risk-attributable cancer deaths increased by 20.4% (12.6-28.4) and DALYs by 16.8% (8.8-25.0), with the greatest percentage increase in metabolic risks (34.7% [27.9-42.8] and 33.3% [25.8-42.0]). Interpretation The leading risk factors contributing to global cancer burden in 2019 were behavioural, whereas metabolic risk factors saw the largest increases between 2010 and 2019. Reducing exposure to these modifiable risk factors would decrease cancer mortality and DALY rates worldwide, and policies should be tailored appropriately to local cancer risk factor burden. Copyright (C) 2022 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license.Peer reviewe

    Global, regional, and national burden of disorders affecting the nervous system, 1990–2021: a systematic analysis for the Global Burden of Disease Study 2021

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    BackgroundDisorders affecting the nervous system are diverse and include neurodevelopmental disorders, late-life neurodegeneration, and newly emergent conditions, such as cognitive impairment following COVID-19. Previous publications from the Global Burden of Disease, Injuries, and Risk Factor Study estimated the burden of 15 neurological conditions in 2015 and 2016, but these analyses did not include neurodevelopmental disorders, as defined by the International Classification of Diseases (ICD)-11, or a subset of cases of congenital, neonatal, and infectious conditions that cause neurological damage. Here, we estimate nervous system health loss caused by 37 unique conditions and their associated risk factors globally, regionally, and nationally from 1990 to 2021.MethodsWe estimated mortality, prevalence, years lived with disability (YLDs), years of life lost (YLLs), and disability-adjusted life-years (DALYs), with corresponding 95% uncertainty intervals (UIs), by age and sex in 204 countries and territories, from 1990 to 2021. We included morbidity and deaths due to neurological conditions, for which health loss is directly due to damage to the CNS or peripheral nervous system. We also isolated neurological health loss from conditions for which nervous system morbidity is a consequence, but not the primary feature, including a subset of congenital conditions (ie, chromosomal anomalies and congenital birth defects), neonatal conditions (ie, jaundice, preterm birth, and sepsis), infectious diseases (ie, COVID-19, cystic echinococcosis, malaria, syphilis, and Zika virus disease), and diabetic neuropathy. By conducting a sequela-level analysis of the health outcomes for these conditions, only cases where nervous system damage occurred were included, and YLDs were recalculated to isolate the non-fatal burden directly attributable to nervous system health loss. A comorbidity correction was used to calculate total prevalence of all conditions that affect the nervous system combined.FindingsGlobally, the 37 conditions affecting the nervous system were collectively ranked as the leading group cause of DALYs in 2021 (443 million, 95% UI 378–521), affecting 3·40 billion (3·20–3·62) individuals (43·1%, 40·5–45·9 of the global population); global DALY counts attributed to these conditions increased by 18·2% (8·7–26·7) between 1990 and 2021. Age-standardised rates of deaths per 100 000 people attributed to these conditions decreased from 1990 to 2021 by 33·6% (27·6–38·8), and age-standardised rates of DALYs attributed to these conditions decreased by 27·0% (21·5–32·4). Age-standardised prevalence was almost stable, with a change of 1·5% (0·7–2·4). The ten conditions with the highest age-standardised DALYs in 2021 were stroke, neonatal encephalopathy, migraine, Alzheimer's disease and other dementias, diabetic neuropathy, meningitis, epilepsy, neurological complications due to preterm birth, autism spectrum disorder, and nervous system cancer.InterpretationAs the leading cause of overall disease burden in the world, with increasing global DALY counts, effective prevention, treatment, and rehabilitation strategies for disorders affecting the nervous system are needed

    Critical Analytical Review of the Journal of Translation Researches on Arabic Language and Literature from No. 6 to 17

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    Critical analysis of journals is a principled process in spreading knowledge and promoting the quality of scientific researches; therefore, scientific publications need to be criticized on the basis of the correct way of critical thinking. The purpose of this research is to review the articles No. 6 to 17 of the Journal of Translation Studies on Arabic Language and Literature by using the Quantitative Content Analysis method. Therefore, using a questionnaire designed by the Human Sciences Institute and Cultural Studies, 61 articles of this journal were criticized and analyzed using quantitative content analysis. The findings of the research show that the "reviewing translations" with 49% statistic has the most frequent subject of the journal. The journal trend in 2017 was toward translation critique based on the existing theories and is outstanding in evaluating cultural subjects. The journal has had a lot of evaluated attributes in 2016; and particularly in 2017 has prevailed reflecting the growing trend of the magazine. The articles in 2016 in terms of title, writing introduction, innovation and theoretical foundations of research, and in 2017 in terms of research method, the method of collecting the analysis, adherence to the method, referring to the article, thesis and databases have had a better performance. The most of shortcomings are as follows: Selecting inappropriate research method and not to adhere to it in the main body of the article, not to explain the theoretical foundations of the research, not to have a critical and analytical approach, to be descriptive the research background and not to update the sources of the articles

    The States Foreign Investment Diplomacy Challenges

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    Today states have a vast network of international relations and have thus far managed to establish comprehensive mechanisms in some sectors of their relations. However, in the realm of foreign investment they have failed to establish such universal framework. In this regard, main questions are: whether negotiation can lead to a universal agreement as to the conclusion of a universal treaty on foreign investment? What are the main challenges and obstacles facing this path? Generally speaking, if these negotiations are conducted in a systematic and harmonious manner along with clear definition of fundamental concepts as well as determination of the sensitive issues, then one could hope to be moving toward the said objective. However, the challenges and obstacles facing this path should not be neglected; several issues such as cultural and ideological differences, the atmosphere of negotiations, bureaucracy, differences in monetary currencies, all constitute examples of such challenges. Nevertheless, a general framework which can embrace the conflicting interests of states can lead to the conclusion of a universal treaty on foreign investment. In this respect, ensuring an acceptable transparency in the pre-negotiation stage and during the negotiations could eliminate the ambiguities which might exist in fundamental issues facing the foreign investment and will, therefore, help states proceed towards establishment of a universal mechanism for coordinating the system which governs worldwide investment and hence, further improvement in international economy

    Evaluating quality of life and marital contentment among seroconcordant and serodiscordant HIV-infected couples in comparison to non- HIV couples

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    Background: Quality of life (QOL) and marital contentment, especially marital satisfaction, are important aspects of life. These items are more important in couples involved in HIV due to the present social stigma among this population considering women more vulnerable. The aim of this study was to determine the QOL and marital contentment status among seroconcordant and serodiscordant HIV couples compared to non-HIV ones. Methods: In this cross-sectional study, 66 serodiscordant, 74 seroconcordant, and 70 non-HIV couples who referred to Lavan High-risk Behavior Counseling Center, Shiraz during September 2017 and December 2019 were studied. QOL and marital contentment were assessed by World Health Organization Quality of Life-BRIEF (WHOQOL BREF) and ENRICH questionnaire, respectively. Chi-square test for qualitative variables, independent T-test and ANOVA followed by LSD post hoc test for quantitative variables were performed. All statistical analyses were performed using SPSS 19.0, and P<0.05 was set as the significant level. Results: The score of QOL questionnaire was significantly higher in non-HIV couples than serodiscordant and seroconcordant groups (P<0.001). There was no significant difference among seroconcordant and serodiscordant groups (P=0.99), and infected males vs. females (P=0.13). Non-HIV couples had significantly higher marital contentment in comparison to serodiscordant and seroconcordant groups (P<0.001). No difference was detected among seroconcordant and serodiscordant groups (P=0.81) although more contentment was observed among the males (P=0.01). Conclusion: Our study revealed that QOL and marital contentment were different among non-HIV and HIV infected couples. Besides, marital contentment was higher among males than female�s in infected patients. © 2021, Shriaz University of Medical Sciences. All rights reserved

    The effect of multi-stage mobile training based on Gagne instructional design on learning, retention, and satisfaction of health volunteers

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    BACKGROUND: One of the most important ways to acquire knowledge in the present age is education based on new technologies, including mobile learning. The purpose of this study was to investigate the effect of a multi-stage mobile training based on Gagne instructional design on learning, retention, and satisfaction of health volunteers. MATERIALS AND METHODS: In this interventional study, 112 health volunteers a Health Centre in Mashhad during 2019-2020 were enrolled. The participants were randomly divided into two groups: mobile education based on Gagne model (n = 56) and conventional lecture (n = 56). A researcher-made questionnaire was completed by the eligible subjects before, after, and 2 months after the intervention to assess their learning, retention and satisfaction in educational methods. Face validity, content validity, and reliability of the data collection tool and model fitness indices were confirmed. Content validity of data collection tools verified by experts and its reliability was calculated to be 0.78. The collected data were analyzed in SPSS-25, using descriptive (mean and standard deviation SD]) and analytical statistical tests (independent t-test). RESULTS: The results showed that 2 days and 2 months after the intervention, learning, and retention rate was significantly higher in the mobile learning based on Gagne model group in comparison to conventional lecture group (P < 0.001). Furthermore, the intervention group was generally satisfied with the mobile training method. CONCLUSION: Mobile learning based on Gagne model is recommended for improving learning, retention among health-care worker
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