Original research. Рубрика в журнале - Cardiometry
To study about the relation between oxygen delivery and hemodynamics during cardiopulmonary bypass
Статья научная
The study put forth the relation between oxygen delivery and hemodynamics during cardiopulmonary bypass. The study was performed on 26 patients of either sex have age > 10 years and who underwent elective open-heart surgery from June 2017 - May 2018 in Sri Ramachandra Medical College & Research Institute. The patients with valvular heart diseases associated with other cardiac lesions like Intra cardiac shunts (ASD, VSD etc.) and Coronary artery disease (CABG) are excluded in the study. It examined the relationships among VO2, hemodynamics & DO2 during clinical perfusion, namely throughout moderately hypothermic CPB using a non-pulsatile roller pump while managing the alpha-stat acid-base with adults. The results revealed a linear relationship between VO2 and DO2, demonstrating that higher levels of delivery can perfuse and collect additional vascular beds throughout the CPB. Under bodily tissue perfusion, higher deliveries are advised to be avoided. The oxygen demand decreases by 7% for every 1OC decline in patient temperature.
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Trigeminy electrocardiogram spectral characteristics study
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This paper presents the results of a study in which the method of ECG decomposition in the time domain (DMTD) was applied, followed by a spectral analysis. A digital signal with trigeminy of the first lead of a standard electrocardiograph was processed. Using digital filtering in time domain, the electrocardiogram (ECG) was cleared of noise, what results the reduction of spurious components by 10-20%. To represent and classify the frequency characteristics throughout the entire processed cardiac signal, the QRS complexes were removed, P and T waves were left unchanged. Due to considerable influence on the spectral analysis sharp peaks of the ECG signal with small characteristic times of the leading and trailing edges, the obtained result differs considerably from the sum of the harmonic components of the smooth part of the signal. The spectral processing reveals peaks at multiple frequencies, 1.6 Hz, 3.2 Hz, 4.7 Hz, corresponding to a smooth function of P and T waves before the appearance of extra systoles. Based on the obtained data, the frequencies corresponding to the peaks of the cardiogram with a stable sinus rhythm were identified. The acquired data represent regular harmonics, which allow adequate quantitative ECG analysis.
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Understanding e-sports industry and impact of COVID-19 on it: a review of literature
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COVID-19 brought the whole world to a halt suddenly and forced it to go on social distancing & lockdown. COVID-19 has impacted every industry worldwide differently and mostly negatively, so we wanted to look at its impact on the ‘esports industry,' especially in the Indian context. To understand the impact, we did a detailed literature review of academic papers, articles, industry reports to determine the current trend and predict possibility in the future. Our findings indicate that although the industry is facing issues, COVID-19 actually might have helped the esports industry in the long term and expedite its progress among the young generation. Once everything was done, we analyzed the complete literature review, and based on that; we listed out our findings, and based on our findings, we did a final evaluation. We reviewed the existing work of academicians, business reports, industry reports, trends captured by news/media organizations, and the current state of video games to find the trends & reasons which could help us solve our question.
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Use of cardiometry and oculography in concealed information detection
Статья научная
Aims The article presents the results of an experimental study on the use of cardiometry and oculography to detect concealed information. It has been shown that a complex assessment of the person's emotional-cognitive state based on cardiometric and oculographic recording of reactions to specially selected stimulus material of visual and audial modality can be successfully used in concealed information detection. Materials and methods We used the Cardiocode single-lead cardiograph and the GP-3 eyetracker as the instrumental basis for testing the hypothesis of the study. We have selected the above devices taking into account the previous analysis of their functional features and the basic possibility to use both devices together, the availability of the devices for a wide range of researchers and practitioners. To prove the hypothesis of the study, a complete set of the relevant subtests has been developed that implied both verbal (tests No. 1-3) and visual graphic presentation of stimulus material (tests No...
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Use of sentiment analysis in social media campaign design and analysis
Статья научная
Sentiment Analysis is the process by which opinions are defined and categorized as positive, neutral, or negative in a given piece of text. It is a vital part of every strategy for tracking social media. It helps to understand what someone is thinking behind a social media post. Knowing the emotion will provide valuable background for the businesses to move further and react. Over the last decade, numerous studies have been carried out on how businesses can use Sentiment Analysis to understand and quantify the feelings of their consumers about their brand, products, and services. An in-depth analysis of the existing empirical literature on SA regarding social media campaigns is provided using a systematic review of the literature. This paper presents the findings according to the preferred reporting items for systematic reviews and meta-analysis (PRISMA). The aim is to create a resource of the methods and techniques used in the studies to assist both researchers and academia. We subsequently identified the corpus trends, challenges, and implications. We suggested avenues for further research in the application of SA in social media campaign design and analysis.
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Статья научная
Today, among the urgent tasks facing the pharmaceutical science of the Republic of Uzbekistan is the study of introduced medicinal plants. Of the promising plants Erva woolly - Aerva lanata Juss of the amaranth family (Amaranthaceae) deserves special attention. A perennial or biennial herbaceous plant grows in many countries of Africa, Saudi Arabia, India, Indonesia, etc. For the first time, Aerva lanata Juss. was introduced on the territory of the former USSR by the Transcaucasian zonal experimental station VILR (Kobuletti) in the mid-70s, then in Ukraine, Uzbekistan and Kazakhstan. Aerva lanata is a dioecious plant. The flowers of A. lanata are nectariferous. Pollination of Erva woolly occurs under the influence of gravity inside the flower, wind, insects and rainwater. Erva woolly with more than one pollination and seed dispersal mode is able to invade a variety of habitats with different environmental conditions and grow as widespread weeds. Among other Aerva species, A. lanata cultivar has a wide range of pharmacological activities such as sedative, antiulcer, antiasthma, antidiarrheal, antioxidant, antihyperglycemic, antimalarial, hypolipidemic and other activities. It is used as a diuretic, for acute kidney damage, as well as for ulcerative wounds, rheumatism. Given the availability of the raw material base necessary to meet the possible growth in consumer demand and its widespread use in traditional and scientific medicine to create effective, low-toxic drugs intended for the prevention and treatment of diseases of the urinary system, Aerva lanata Juss L. was chosen as the object of research. An important stage in the standardization of the final product is the quality control of the technological process and the raw materials entering the production to obtain the finished product. Particular attention is paid to the method of quantitative determination of one of the active substances or groups of biologically active substances that affect the therapeutic effect of finished pharmaceutical products. It is known that the quantitative determination of the active substance is carried out by its extraction from plant materials. In this regard, the problem arises - finding the optimal conditions for the process of extracting the active substance. In view of this, it becomes necessary to conduct research to determine the optimal conditions for the extraction process. The objective of the research: the use of the mathematical planning method of the experiment for the complete extraction of flavonoids from the herb Aerva lanata. To achieve this objective, the following tasks were defined: - selection of the mathematical planning method of the experiment; - selection of method for quantitative determination of flavonoids amount; - statistical analysis of the obtained results. Optimization of the process of extracting the amount of flavonoids from the herb of Aerva lanata, which is predominant in its raw materials, was carried out using the method of mathematical planning of experiments by Box and Wilson. The optimization problem was reduced to determining the values of technological parameters that ensure the maximum yield of total flavonoids from the plant. As an optimization parameter, Y was taken - the content of the sum of flavonoids in the extract, in % of its content in the raw material. Conclusion. This article presents the results of modeling and optimization of the process of obtaining the sum of flavonoids from the herb Aerva lanata Juss. L. A comprehensive quantitative assessment of the influence of three experimental factors (alcohol concentration, hydromodulus and extraction time) on the yield of the total flavonoids was carried out using the method of mathematical planning of the Box-Wilson experiment. The objective was achieved by building a mathematical model based on the first order regression equation: Y=1.20+0.185X1+0.091X2+0.111X3 The adequacy of this process is shown, a mathematical model and parametric identification of this model are presented. As a result of the statistical analysis of the obtained data, the following optimal conditions for the process of extracting the amount of flavonoids from the herb of Aerva lanata were revealed in the quantitative analysis of raw materials: alcohol concentration - 50%; hydromodule - 1:60; extraction time - 30 min. The maximum yield of the sum of flavonoids was 1.52% by weight of dry raw materials. The resulting mathematical model of the extraction process will allow further optimization of the extraction of compounds of natural origin, taking into account the quantitative influence of each factor.
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Статья научная
Aims The paper offers some results from our experimental studies to determine validity of a complex performance fingerprint: the Baevsky stress index used to assess effectiveness of training programs: training sessions targeted at formation of phsychosomatic self-regulation skills and visual & verbal practical training course aimed at development of emotional intelligence. Materials and methods In order to determine the criterion-related validity of cardiometric assessments of training results, we have organized training sessions addressing scheduled staged formation of the self-regulation skills. Before the training sessions and after them, our training participants have been instructed to perform a set of three tasks, covering the following: - to imagine a calming video clip; - to imagine some TV news reporting various dramatic incidents, emergencies, calamities etc. - to generate self-relaxation, to perform the task to get relaxed and initiated or induced an emotional balance...
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Workplace motivation and job satisfaction among generation Y in India
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Employee work motivation and job satisfaction are dynamic and demanding goals for a business. It has been much more daunting in today’s dynamic workforce. A business is a wonderful workspace that serves the expectations of each employee and motivates each one to achieve its objectives. The present research illustrates the desires and aspirations of various employees regarding work encouragement and satisfaction from the organization. The focus is on understanding specific characteristics, needs, and expectations of Generation Y, which in today’s context are considered to be critical. There is also an emphasis on learning how and what motivates workers in Generation Y. In addition, racial and geographic diversity is often taken into consideration in this report. The company that recognizes the requirements and can help its workers improve is producing greater performance. In this analysis, a technique of the interview is used. A group of 254 workers from different backgrounds and ages is evaluated for the quantitative model. Any variables suggesting relevant HR behaviors are taken from earlier research in this report. In the study of human personal variations in organizational efficiency, the “locus of influence” aspect is often taken.
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Breast cancer (BC) takes a leading position among all malignant neoplasms in women. One of the critical aspects of the radical treatment of BC is the development of post-castration syndrome (PCS) in patients of reproductive age, who as a rule reach physiological, social and professional maturity, competence and status in the period up to 45 years of age. Traditionally used hormone replacement therapy, despite its high efficiency, has a number of contraindications and side effects. Therefore, it is urgent to develop and implement in clinical practice the effective methods of rehabilitation of patients with PCS. One of the main areas of research is the study of the prospects for the use of therapeutic xenon-oxygen mixtures in restorative medicine, as it has a pronounced anti-stress, hormone-modulating, antidepressant and sedative effect. Accordingly, the aim of the present paper is to study the effect of xenon on cardiovascular system markers, brain bioelectric activity and psycho-emotional state in oncology patients with hormone-positive breast cancer in the stage of surgical castration...
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Статья научная
Background: Hair color repigmentation in the recipient area is a newly detected phenomena after hair transplantation. It’s detected especially in patients with gray or white hairs in the donor area, in which transferring these follicles to the recipient area stimulate them to regain their original blackish color, this may occur due to various stimulants that release during wound healing of slits after hair transplantation that trigger melanin production within the melanocyte inside the hair roots and promote hair repigmentation in the recipient area.
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