24 research outputs found
36 Months Survivability And Its Predictors In Patients With Chronic Heart Failure And Decreased Fraction Of Left Ventricular Ejection Depending On Sex
Aim of the work: to compare survivability parameters during 36 months and their predictors among men and women with chronic heart failure and decreased fraction of left ventricular ejection.Materials and methods: the research included 356 patients with CHF (NYHA ĐĐ âĐV) with decreased LVEF<40 %, 18â75 years old. Using Kaplan-Meier method, there was analyzed the survivability in men and women during 36 months, then there were analyzed independent factors that influenced survivability terms depending on sex using the multiple logistic regression.Results. Our analysis of the survivability of patients with CHF with decreased LVEF demonstrated that the cumulative survival after 3 years of observation was 49 and 51 % for men and women, respectively. The curves of 36 months survivability didn\u27t reliably differ. At the analysis of factors, associated with the bad prognosis, there were observed differences between groups of men and women with CHF. Thus, in men the predictors of 36 month survival were: the thickness of the right ventricle wall, size of the right atrium, end-diastolic volume and end-systolic volume of LV, indices of EDV and ESV of LV, urinary acid level, value of LVEF. In women the predictors of survivability during 3 years were the following parameters: BMI, DM type 2 in an anamnesis, end-diastolic size of LV, end-systolic size of LV, blood glucose level, LVEF.Conclusion. The survivability of men and women with CHF with decreased LVEF during 36 months didn\u27t reliably differ and was 49 and 51 % respectively. But predictors of the lethal outcome in men and women essentially differed during 36 months, and their number is essentially higher in men
36 MONTHS SURVIVABILITY AND ITS PREDICTORS IN PATIENTS WITH CHRONIC HEART FAILURE AND DECREASED FRACTION OF LEFT VENTRICULAR EJECTION DEPENDING ON SEX
Aim of the work: to compare survivability parameters during 36 months and their predictors among men and women with chronic heart failure and decreased fraction of left ventricular ejection.
Materials and methods: the research included 356 patients with CHF (NYHA ĐĐ âĐV) with decreased LVEF<40 %, 18â75 years old. Using Kaplan-Meier method, there was analyzed the survivability in men and women during 36 months, then there were analyzed independent factors that influenced survivability terms depending on sex using the multiple logistic regression.
Results. Our analysis of the survivability of patients with CHF with decreased LVEF demonstrated that the cumulative survival after 3 years of observation was 49 and 51 % for men and women, respectively. The curves of 36 months survivability didnât reliably differ. At the analysis of factors, associated with the bad prognosis, there were observed differences between groups of men and women with CHF. Thus, in men the predictors of 36 month survival were: the thickness of the right ventricle wall, size of the right atrium, end-diastolic volume and end-systolic volume of LV, indices of EDV and ESV of LV, urinary acid level, value of LVEF. In women the predictors of survivability during 3 years were the following parameters: BMI, DM type 2 in an anamnesis, end-diastolic size of LV, end-systolic size of LV, blood glucose level, LVEF.
Conclusion. The survivability of men and women with CHF with decreased LVEF during 36 months didnât reliably differ and was 49 and 51 % respectively. But predictors of the lethal outcome in men and women essentially differed during 36 months, and their number is essentially higher in men. 
On the Regulators with Random Noises in Dynamic Block
The problem of controlling stochastic linear systems with quadratic criterion is considered. A class of optimal controllers which are equivalent to the separation theorem regulator is determined. For all of such controllers the quadratic functional has the same value. The effects of disregarded disturbances which are modeled by random noises in the dynamic block of the regulator are investigated. It is shown that the equivalent (in the classic propounding) controllers respond to these noises in different ways. Sometimes an "equivalent optimal" regulator may be less receptive towards additional disturbances than the standard one (which comes from the separation theorem). The optimal regulator is found which takes into account the presence of such noises
Isolation of cellulolytic bacteria from cultivated soil samples
Cellulose decomposition is widespread in all types of soils in the world, which plays an important role in the carbon cycle and the decomposition of plant residues, which is especially important for agriculture. Cellulolytic bacteria can be actively used in the processes of increasing soil fertility, especially in those areas where the natural content of such microorganisms is not high. Within the framework of this work, cellulolytic bacteria were isolated from soil actively used for growing crops. 39 strains of microorganisms were selected, their lytic activity in relation to cellulose compounds was determined. It was observed that 5 strains showed high cellulose activity already within 24 hours. The study of some biological properties of isolated microorganisms showed their strong difference from each other. The unifying feature of all isolated strains was the absence of tryptophan fermentation. The obtained data allow us to continue creating a collection of cellulolytic microorganisms with their further identification
The impact of culture on neuropsychological performance: A global social cognition study across 12 countries
AbstractBackgroundDecades of researches aiming to unveil truths about human neuropsychology may have instead unveil facts appropriate to only a fraction of the world's population: those living in western educated rich democratic nations (Muthukrishna et al., 2020 Psych Sci). So far, most studies were conducted as if education and cultural assumptions on which neuropsychology is based were universals and applied everywhere in the world. The importance given to sociological or cultural factors is thus still relatively ignored. With the growth of international clinical studies on dementia, we believe that documenting the potential interâcultural differences at stake in a common neuropsychological assessment is an essential topic. This study thus aimed to explore these potential variations in two classical tasks used in neuropsychology that are composing the miniâSEA (Bertoux et al., 2012 JNNP), i.e. a reduced version of the wellâknown Ekman faces (FER), where one has to recognize facial emotions, and a modified version of the Faux Pas test (mFP), where one has to detect and explain social faux.MethodThe data of 573 control participants were collected through the Social Cognition & FTLD Network, an international consortium investigating social cognitive changes in dementia covering 3 continents (18 research centres in 12 countries). Impact of demographic factors and the effect of countries on performance (miniâSEA, FER, mFP) were explored through linear mixedâeffects models.ResultAge, education and gender were found to significantly impact the performance of the miniâSEA subtests. Significant and important variations across the countries were also retrieved, with England having the highest performance for all scores. When controlling for demographical factors, differences within countries explained between 14% (mFP) and 24% (FER) of the variance at the miniâSEA. These variations were not explained by any economical or sociological metrics.ConclusionImportant variations of performance were observed across the 12 countries of the consortium, showing how cultural differences may critically impact neuropsychological performance in international studies
Does Culture Shape Our Understanding of Othersâ Thoughts and Emotions? An Investigation Across 12 Countries
Q2Q2Measures of social cognition have now become central in neuropsychology, being essential for early and differential diagnoses, follow-up, and rehabilitation in a wide range of conditions. With the scientific world becoming increasingly interconnected, international neuropsychological and medical collaborations are burgeoning to tackle the global challenges that are mental health conditions. These initiatives commonly merge data across a diversity of populations and countries, while ignoring their specificity. Objective: In this context, we aimed to estimate the influence of participantsâ nationality on social cognition evaluation. This issue is of particular importance as most cognitive tasks are developed in highly specific contexts, not representative of that encountered by the worldâs population. Method: Through a large international study across 18 sites, neuropsychologists assessed core aspects of social cognition in 587 participants from 12 countries using traditional and widely used tasks. Results: Age, gender, and education were found to impact measures of mentalizing and emotion recognition. After controlling for these factors, differences between countries accounted for more than 20% of the variance on both measures. Importantly, it was possible to isolate participantsâ nationality from potential translation issues, which classically constitute a major limitation. Conclusions: Overall, these findings highlight the need for important methodological shifts to better represent social cognition in both fundamental research and clinical practice, especially within emerging international networks and consortia.https://orcid.org/0000-0001-9422-3579https://orcid.org/0000-0001-6529-7077Revista Internacional - IndexadaA2N
Semantic Types of Personification in Design Advertising Texts
Personification is a way of artistic assimilation of reality, in the process of which an inanimate denotate is endowed with human properties. The formation of a new meaning is accompanied by implicit increments of an emotionally evaluative nature. The complex nature of this trail attracts the attention of linguists, literary critics, folklorists, psychologists, philosophers and culturologists. In the advertising sphere, personification performs various functions â the formation of an attractive image of the product, its individualization; demonstration of the advantages of the goods; creating a certain emotional mood. As instruments of impersonation in the analyzed texts are specific, collective and abstract nouns, as well as verbs with anthropomorphic semantics. In order to specify advertising images, goods are endowed with human attributes, they are represented as an assistant, friend, etc. The personifying semantics of verbal trademarks reflects the nature of the companyâs activities
CONTROL AND ESTIMATION IN LINEAR STOCHASTIC SYSTEMS WITH ADDITIONAL INTERFERENCES
The construction of optimum observers and regulators with additional interferences in a dynamic unit is the aim of the paper. As a result the new method for the modelling of disturbances, not taken into account, has been suggested. The non-uniqueness of the solution for the classical problem of optimal control has been shown for the first time. Constructive algorithms of the estimation and control with additional interferences, algorithms making it possible to avoide devirgence, have been suggestedAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio
Increase in the efficiency of water transport of bulk mineral cargo by the segregation of feedstock at the initial technological stage
The paper gives the analysis of the volume of transportation of bulk mineral cargoes by water transport. It is established that the problem of the use of technological processes for sorting non-metallic building materials and coals transported by water transport is relevant. It is revealed that in the applied beneficiation system of crushed stone it is possible to reduce energy consumption due to the segregation of material into commercial fractions at the crushing stage by combining operations. The developed design of the receiving - segregation hopper is considered which allows classifying the feedstock at the initial technological stage of the production of crushed sandstone. A patented design of a segregation hopper and a technological scheme with its use are described. The volume of material sent to the crushing process is reduced by up to 50% due to the separation of particles of commercial fractions, which helps to reduce the production cost of a unit of the finished product. The principle of operation of the hopper is based on the difference in the rolling speed of particles of various sizes. The influence of the geometrical parameters of the chute and the size of the initial material on the capacity of the hopper is investigated. The influence of the slope angle of the chute and the particle size on the production parameters of the installation is proved. The configuration at which the drain wall achieves the highest throughput is determined