424 research outputs found

    ΠŸΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ инструмСнтов ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ для ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ конвСрсионности сайта ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ

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    ΠžΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠΌ исслСдования являСтся систСма ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ сайта коммСрчСской ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ Π² ΠΈΠ·ΠΌΠ΅Π½ΡΡŽΡ‰ΠΈΡ…ΡΡ условиях. ΠŸΡ€Π΅Π΄ΠΌΠ΅Ρ‚ΠΎΠΌ исслСдования являСтся процСсс Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ ΠΈ Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ комплСкса инструмСнтов SEO-ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ сайта ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ для ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ Π΅Π³ΠΎ конвСрсионности. ЦСлью Ρ€Π°Π±ΠΎΡ‚Ρ‹ являСтся Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠ° примСнСния комплСкса инструмСнтов SEO-ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ сайта ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ ΠΈ Π΅Π³ΠΎ Π²Π½Π΅Π΄Ρ€Π΅Π½ΠΈΠ΅ для ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ конвСрсии. Научная Π·Π½Π°Ρ‡ΠΈΠΌΠΎΡΡ‚ΡŒ исслСдования состоит Π² Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ΅ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠ° примСнСния комплСкса инструмСнтов SEO-ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ сайта коммСрчСской ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ с Ρ†Π΅Π»ΡŒΡŽ ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ Π΅Π³ΠΎ конвСрсионности. ΠŸΡ€Π°ΠΊΡ‚ΠΈΡ‡Π΅ΡΠΊΠ°Ρ Π·Π½Π°Ρ‡ΠΈΠΌΠΎΡΡ‚ΡŒ Π·Π°ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ΡΡ Π² ΡƒΡΠΏΠ΅ΡˆΠ½ΠΎΠΉ Π°ΠΏΡ€ΠΎΠ±Π°Ρ†ΠΈΠΈ Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π½ΠΎΠ³ΠΎ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠ° ΠΈ Π²Π½Π΅Π΄Ρ€Π΅Π½ΠΈΠΈ ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹Ρ… Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°Ρ†ΠΈΠΉ Π² исслСдуСмой ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ.The object of the research is a system for optimizing the site of a commercial company in changing conditions. The subject of the research is the development process and a set of tools for SEO-optimization of a company's website to increase its conversion. The aim of the work is to develop an algorithm for using a set of tools for SEO-optimization of the company's website and its implementation to increase conversion rates. The scientific significance of the research includes an algorithm for using a set of SEO tools for optimizing a company's website in order to increase its conversion rate. The practical significance lies in the successful testing of the developed algorithm and the implementation of the proposed recommendations in the company under study

    Association studies of up to 1.2 million individuals yield new insights into the genetic etiology of tobacco and alcohol use.

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    Tobacco and alcohol use are leading causes of mortality that influence risk for many complex diseases and disorders1. They are heritable2,3 and etiologically related4,5 behaviors that have been resistant to gene discovery efforts6-11. In sample sizes up to 1.2 million individuals, we discovered 566 genetic variants in 406 loci associated with multiple stages of tobacco use (initiation, cessation, and heaviness) as well as alcohol use, with 150 loci evidencing pleiotropic association. Smoking phenotypes were positively genetically correlated with many health conditions, whereas alcohol use was negatively correlated with these conditions, such that increased genetic risk for alcohol use is associated with lower disease risk. We report evidence for the involvement of many systems in tobacco and alcohol use, including genes involved in nicotinic, dopaminergic, and glutamatergic neurotransmission. The results provide a solid starting point to evaluate the effects of these loci in model organisms and more precise substance use measures

    Circulating vitamin D concentration and risk of seven cancers: Mendelian randomisation study

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    Objective To determine if circulating concentrations of vitamin D are causally associated with risk of cancer.Design Mendelian randomisation study.Setting Large genetic epidemiology networks (the Genetic Associations and Mechanisms in Oncology (GAME-ON), the Genetic and Epidemiology of Colorectal Cancer Consortium (GECCO), and the Prostate Cancer Association Group to Investigate Cancer Associated Alterations in the Genome (PRACTICAL) consortiums, and the MR-Base platform).Participants 70 563 cases of cancer (22 898 prostate cancer, 15 748 breast cancer, 12 537 lung cancer, 11 488 colorectal cancer, 4369 ovarian cancer, 1896 pancreatic cancer, and 1627 neuroblastoma) and 84 418 controls.Exposures Four single nucleotide polymorphisms (rs2282679, rs10741657, rs12785878 and rs6013897) associated with vitamin D were used to define a multi-polymorphism score for circulating 25-hydroxyvitamin D (25(OH)D) concentrations.Main outcomes measures The primary outcomes were the risk of incident colorectal, breast, prostate, ovarian, lung, and pancreatic cancer and neuroblastoma, which was evaluated with an inverse variance weighted average of the associations with specific polymorphisms and a likelihood based approach. Secondary outcomes based on cancer subtypes by sex, anatomic location, stage, and histology were also examined.Results There was little evidence that the multi-polymorphism score of 25(OH)D was associated with risk of any of the seven cancers or their subtypes. Specifically, the odds ratios per 25 nmol/L increase in genetically determined 25(OH)D concentrations were 0.92 (95% confidence interval 0.76 to 1.10) for colorectal cancer, 1.05 (0.89 to 1.24) for breast cancer, 0.89 (0.77 to 1.02) for prostate cancer, and 1.03 (0.87 to 1.23) for lung cancer. The results were consistent with the two different analytical approaches, and the study was powered to detect relative effect sizes of moderate magnitude (for example, 1.20-1.50 per 25 nmol/L decrease in 25(OH)D for most primary cancer outcomes. The Mendelian randomisation assumptions did not seem to be violated.Conclusions There is little evidence for a linear causal association between circulating vitamin D concentration and risk of various types of cancer, though the existence of causal clinically relevant effects of low magnitude cannot be ruled out. These results, in combination with previous literature, provide evidence that population-wide screening for vitamin D deficiency and subsequent widespread vitamin D supplementation should not currently be recommended as a strategy for primary cancer prevention
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