ВПЛИВ ТЕХНОЛОГІЧНОГО РОЗВИТКУ НА ЗДІЙСНЕННЯ ЕЛЕКТРОННОЇ КОМЕРЦІЇ

The article reflects Internet marketing as a modern and effective way to promote the company’s products at the market. The role of the media in the Internet has been highlighted and their polarity has been investigated for e-commerce. It is shown the role of smartphones when using information from the Internet. The necessity of using interactive technologies by Ukrainian producers to enter the European market is proved.В статье отражен интернет-маркетинг как современный и эффективный способ продвижения продукции компании на рынке. Выделенная роль средств массовой информации в сети Интернет и исследована их популярность для осуществления электронной коммерции. Показана роль смартфонов при использовании информации из Интернет-сети. Обоснована необходимость использования интерактивных технологий украинскими производителями для выхода на европейский рынок.У статті розглядається Інтернет-маркетинг як сучасний дієвий засіб просування продукції підприємства на ринку. Виділена роль засобів масової інформації в мережі Інтернет та досліджена їх популярність для здійснення електронної комерції. Показано роль смартфонів при використанні інформації з Інтернет-мережі. Обґрунтована необхідність використання інтерактивних технологій українськими виробниками для виходу на європейський ринок

Coexisting large and small vessel disease in patients with ischemic stroke of undetermined cause

Background and Purpose: Large artery atherosclerosis (LAA) and small vessel disease (SVD) share common risk factors for stroke. We aimed at investigating the association of SVD with cerebral LAA as well as with atherosclerosis in patients with stroke likely to originate from aortic plaques. Methods: We investigated 71 consecutive patients (48 men, mean age 64.2 +/- 13 years) with ischemic stroke of undetermined cause according to the ASCO classification, who received ECG-triggered CT angiography for best available atherosclerotic plaque detection in the aorta. Results: Aortic atherosclerotic plaques were detected in 54 patients (76.1%). The presence of SVD significantly correlated with the presence of aortic plaques (p < 0.001), as well as LAA (p < 0.001) and risk factors such as arterial hypertension (p = 0.032) and diabetes mellitus (p = 0.017). Conclusions: Aortic plaques are common in patients with stroke of undetermined cause. If so, SVD and LAA are often coexisting, which demonstrates the close link of macro- and microangiopathy, at least in cases of severe risk factors of atherosclerosis. Copyright © 2012 S. Karger AG, Base

CT angiography of the aorta is superior to transesophageal echocardiography for determining stroke subtypes in patients with cryptogenic ischemic stroke

Background: The etiology of ischemic strokes remains cryptogenic in about one third of patients, even after extensive workup in specialized centers. Atherosclerotic plaques in the aorta can cause thromboembolic events but are often overlooked. They can elude standard identification by transesophageal echocardiography (TEE), which is invasive or at best uncomfortable for many patients. CT angiography (CTA) can be used as an alternative or in addition to TEE if this technique fails to visualize every part of the aorta and in particular the aortic arch. Methods: We prospectively studied 64 patients (47 men, age 60 8 13 years) classified as having cryptogenic stroke after standard and full workup [including brain MRI and 24-hour electrocardiogram (ECG)] with ECG-triggered CTA of the aorta in search of plaques and compared the results with those of TEE. Investigators were blinded to the results of both techniques

ПРОГНОЗУВАННЯ РЕЗУЛЬТАТИВНОСТІ ІННОВАЦІЙНИХ ПРОЄКТІВ

The article examines the role of innovations in the development of the national economy. We have analyzed the dynamics of budget financing of strategic priorities of innovative activities and activities in the field of technology transfer in Ukraine for 2019-2021. Priorities support increases annually, and there were identified priorities where funding  decreases.We conducted a predictive assessment of innovative projects using the clustering procedure. The implementation of the proposed proposal is highlighted in the example of 46 research works in the medical field. A scoring system for planned scientific results and products of research work has been developed, and relative values of indicators were calculated,  which were the basis of clustering. The Fuzzy Clustering and Data Analysis  Toolbox program set is used to solve the problem of fuzzy clustering based  on the fuzzy c-means algorithm. It was determined that factors such as  novelty, the expected effect of implementation, the methodological level and  material and technical base of the study, and the qualifications of the  main performers of the study have an impact on the predictive effectiveness  and the final results. The results of clustering research work according to the specified indicators, and three clusters were obtained. Analysis of the structure of indicators in clusters showed that the first cluster includes the most effective research works and the second – intermediate ones. The  hird cluster includes ineffective scientific research. Attribution of the planned research to a certain cluster based on expert evaluations of four  selected informative indicators allows for predicting the possible  ffectiveness of the innovation with sufficient accuracy.The statistic of indicators of average scores in each cluster was analyzed. Reliable differences between clusters were established using the non-parametric Mann-Whitney test. The conducted clustering provides reasonable recommendations regarding the feasibility of financing  an innovative project based on forecast expert assessments. У статті розглянуто роль інновацій у розвитку національної економіки.  Проаналізовано динаміку бюджетного фінансування стратегічних  пріоритетів інноваційної діяльності та діяльності у сфері трансферу  технологій в Україні за 2019–2021 роки. Визначено пріоритети, підтримка  яких зростає щорічно, та пріоритети, де фінансування зменшується. Запропоновано здійснювати прогнозну оцінку інноваційних проєктів з використанням процедури кластреризації.  Висвітлено реалізацію винесеної пропозиції на прикладі науково-дослідних робіт медичної сфери. Показано бальну систему експертної  оцінки інноваційних розробок. Визначено показники, що мають  найбільший вплив на прогнозну ефективність. Наведено результати кластеризації науково-дослідних робіт за визначеними показниками. Проаналізовані статистичні показники середніх бальних оцінок в  кожному кластері. Встановлено достовірні відмінності між кластерами з використанням непараметричного критерію Манна–Уітні. Проведена  кластеризація дає обґрунтовані рекомендації щодо доцільності  фінансування інноваційного проєкту на основі прогнозних експертних оцінок.

Magnetization switching in ferromagnets by adsorbed chiral molecules without current or external magnetic field

Ferromagnets are commonly magnetized by either external magnetic fields or spin polarized currents. The manipulation of magnetization by spin-current occurs through the spin-transfer-torque effect, which is applied, for example, in modern magnetoresistive random access memory. However, the current density required for the spin-transfer torque is of the order of 1 × 106 A·cm−2, or about 1 × 1025 electrons s−1 cm−2. This relatively high current density significantly affects the devices’ structure and performance. Here we demonstrate magnetization switching of ferromagnetic thin layers that is induced solely by adsorption of chiral molecules. In this case, about 1013 electrons per cm2 are sufficient to induce magnetization reversal. The direction of the magnetization depends on the handedness of the adsorbed chiral molecules. Local magnetization switching is achieved by adsorbing a chiral self-assembled molecular monolayer on a gold-coated ferromagnetic layer with perpendicular magnetic anisotropy. These results present a simple low-power magnetization mechanism when operating at ambient conditions

Geometry of integrable dynamical systems on 2-dimensional surfaces

This paper is devoted to the problem of classification, up to smooth isomorphisms or up to orbital equivalence, of smooth integrable vector fields on 2-dimensional surfaces, under some nondegeneracy conditions. The main continuous invariants involved in this classification are the left equivalence classes of period or monodromy functions, and the cohomology classes of period cocycles, which can be expressed in terms of Puiseux series. We also study the problem of Hamiltonianization of these integrable vector fields by a compatible symplectic or Poisson structure.Comment: 31 pages, 12 figures, submitted to a special issue of Acta Mathematica Vietnamic

Spring 1958

Dedication of Turf Clippings to Robert Williams (1) Picture - Stockbridge Turf majors (2) Title page and contents (3) Greetings from Dean Sieling - College of Agriculture (4) Outstanding Men in Turfgrass Honored (4) Word From the Editor of Turf Clippings (5) Message From the 1958 Winter School President (6) Summary of 1958 University of Massachusetts Turfgrass Conference - Al Radko (6-9) Importance of Superintendences Associations - Anthony B. Caranci (10) Picture - Turf Grass Interest Stretch from Coast to Coast (11) Picture - 1958 Winter School for Turf Managers (12) Golf Courses in California - James C. Scott (13) The Constant Battle - Joseph Troll (13) Recognition of the Golf Course Superintendent - Frederick Bove (14-15) 1958 Winter School Comments (16) Maintenance of Insurance Grounds - George J. Moore Jr. (17-18) Don\u27t Get Caught Short - Bruce Silven (19-20) We Have had It - They Now Have it - These Two Shall Have it - Orville O. Clapper (21) The Golf Course Superintendent - Prof. L. S. Dickinson (22-23) Picture - Winter School Alumni Meet at Conference (24) Cartoons (25) Cost of Lawn and Golf Course Construction - Geoffrey Cornish (26-27) Turf Club News (28-29) 1957 Horticulture Show Winner (30) Frosting on the Cake (30) Number One Graduate (31) 1957 Stockbridge Turf majors - Work (32) Turf management Club Associate Memberships (32

1960

Recent Developments Affecting Golf Course Design (page 1) From the Editor (3) Five Year Results (3) Turf Management Club News (4) Quotes from 1960 Seniors (5) Poa annua - - Friend or Foe (6) The Horticulture Show (7) Cartoons (8) Message from the Winter School President of 1960 (10) The Most Outstanding Turf Senior for 1959 (10) The Value of the Proper Use of Lime (11) Summer Placement (12) A Greenhouse on the Golf Course (13) More Opportunities in the Future for the Aggressive Superintendent at Country Clubs (14) Soil, Sawdust and Turfgrass (15) Picture - Senior Stockbridge Turf majors (16) Picture - Freshman Stockbridge Turf majors (17) Susceptibility of Merion Bluegrass to Stripe Smut (18) Bents in the South (19) Picture - Honorary Members of Turf Management Club (20) Picture - Graduates of Winter School for Turf mangers- 1960 (21) Weather - We are Going to Have Weather, Whether or Not - What Should we Expect by O. Tennebaum & R. E. Lautzenheiser (A-1) The Nature of Winter Injury to Plants by Dr. Johnson Parker (A-1) Turf Problems: You Name it and We\u27ve Had It in \u2759 by Alexander Radko ad T.T. Taylor (A-3) Topdressing Experiences with Greens at Century by James Fulwider (A-5) Poa annua - Fairway Rennovation at winged Foot by Sherwood A. Moore (A-6) Winter Problems at Ekwanaok by Paul O\u27Leary (A-8) Progress Through Drainage by Kayem Ovian (A-10) Winter Injury on Home Lawns by Orlando Capizzi (A-12) The Status of Pre-emergence Chemicals for the Control of Crabgrass by Dr. E. Engel (A-12) Turf Nurseries - Establishment, Maintenance & Utilization by Robert Grant (A-14) Soil Compaction by Dr. R. B. Alderfer (A-16) Water Management Practices on Turf Areas by Dr. J.R. Watson (A-18) Getting to Know Your Members by Owen Griffith (A-23) New Trends in Clubhouse Landscaping by Alfred Boicourt (A-26) General Lawn Management (Alternate Session) Conserving Soil for a good Lawn by Dr. William G. Colby (A-27) Fertilizting and Liming by Dr. Joseph Steckel (A-28) Grasses and Grass Mixtures for New England Lawns by Dr. Robert Schery (A-29) The Care and Maintenance of Establishment Lawns by Dr. John R. Davi

Noise Reduction and Image Quality Improvement of Low Dose and Ultra Low Dose Brain Perfusion CT by HYPR-LR Processing

To evaluate image quality and signal characteristics of brain perfusion CT (BPCT) obtained by low-dose (LD) and ultra-low-dose (ULD) protocols with and without post-processing by highly constrained back-projection (HYPR)–local reconstruction (LR) technique.Simultaneous BPCTs were acquired in 8 patients on a dual-source-CT by applying LD (80 kV,200 mAs,14×1.2 mm) on tube A and ULD (80 kV,30 mAs,14×1.2 mm) on tube B. Image data from both tubes was reconstructed with identical parameters and post-processed using the HYPR-LR. Correlation coefficients between mean and maximum (MAX) attenuation values within corresponding ROIs, area under attenuation curve (AUC), and signal to noise ratio (SNR) of brain parenchyma were assessed. Subjective image quality was assessed on a 5-point scale by two blinded observers (1:excellent, 5:non-diagnostic).Radiation dose of ULD was more than six times lower compared to LD. SNR was improved by HYPR: ULD vs. ULD+HYPR: 1.9±0.3 vs. 8.4±1.7, LD vs. LD+HYPR: 5.0±0.7 vs. 13.4±2.4 (both p<0.0001). There was a good correlation between the original datasets and the HYPR-LR post-processed datasets: r = 0.848 for ULD and ULD+HYPR and r = 0.933 for LD and LD+HYPR (p<0.0001 for both). The mean values of the HYPR-LR post-processed ULD dataset correlated better with the standard LD dataset (r = 0.672) than unprocessed ULD (r = 0.542), but both correlations were significant (p<0.0001). There was no significant difference in AUC or MAX. Image quality was rated excellent (1.3) in LD+HYPR and non-diagnostic (5.0) in ULD. LD and ULD+HYPR images had moderate image quality (3.3 and 2.7).SNR and image quality of ULD-BPCT can be improved to a level similar to LD-BPCT when using HYPR-LR without distorting attenuation measurements. This can be used to substantially reduce radiation dose. Alternatively, LD images can be improved by HYPR-LR to higher diagnostic quality