ORTHOGONALITY OF STRUCTURED DERIVED ENTITIES

Structured entities, derivative entities and their order are presented. The orthogonality metric for structured and derivative entities is build. This metric is implemented. The sets of structured entities and first order derivative entities will be evaluated and analyzed.structured entities, derivative entities, metric, sets.

The Development of Citizen Oriented Informatics

We define the concept of citizen-oriented computer application. Quality characteristics are set for computer applications developed in the conditions of citizen-oriented computing and outline the development cycle for these applications. It defines the conditions of existence for citizen-oriented applications. Average and long-term strategies are elaborated.Distributed Applications, Metrics, Citizen-Orientation, Strategies

Lymphopenia: A predictive marker of disease severity in COVID-19 infection

Background. With the latest COVID-19 deaths reported to WHO now exceeding 3.3 million, COVID-19 has developed into a milestone of our medical generation, causing disruption in communities and hospital services. With complications raging from respiratory failure to inflammatory complication and even thrombotic events, we wanted to establish if lymphopenia is a predictive marker of disease severity in patients infected with SARS-CoV-2. Material and methods. 152 patients were included from 4 different departments of Colentina Clinical Hospital in this retrospective observational study beginning with July 2020 to March 2021. All of these patients were confirmed with COVID-19 by real-time reverse transcriptase polymerase chain reaction test for nasal and pharyngeal swab samples. As including criteria we have set the patients hospitalized confirmed with COVID-19, with at least 10 days of hospitalization. The data in demographic, basic clinical and laboratory characteristics and particular evolution was obtained from electronical medical records from each department involved in the study, by maintaining personal data confidentially. We set up criteria for lymphopenia as absolute lymphocyte count below 1.5 x 1000/µl, based on the laboratory reference values. The study group was divided into several groups: male and female, ICU (Intensive Care Unit) and non-ICU, deceased and released, lymphopenia at day 1 (day of admission to hospital) , lymphopenia at day 10 (10 days after hospital admission). Results. The age of the patients ranged from 17 to 92, with the median age of 57.62. Enrolled were 73 (47.4%) female patients and 79 (52.6%) male patients, with an ICU admission rate of 35.71% (55 patients), and a mortality rate of 21.43% (33 patients). Patients who have a severe form of COVID-19 and are admitted to the ICU for mechanical ventilation did not recover and died (p < 0.001). Male patients may have higher risk of requiring admission in ICU (p value = 0.357) and higher risk of death (p value = 0.241). Even in our small group of 152 patients, the elderly patients suffered a more severe form of the disease, which was reflected on the number of admission days (p = 0.07). In our specific population, based on the statistics, if we take the number of lymphocytes on the day of admission as the dependent factor, we can safely say that there is a statistically significant correlation between lymphopenia at day 1 and the ICU admission (p < 0.001) or death (p = 0.014). The number of lymphocytes following 10 days of admission is another prognostic marker as we can see from the results of statistic tests: there is a statistically significant correlation between lymphopenia at day 10 and the ICU admission (p < 0.001) or death (p < 0.001). Age is another predictive factor regarding the number of lymphocytes following 10 days of admission (r = -0.078 and p = 0.356). Conclusion. Lymphopenia is an easy-to-determine, efficient and reliable biomarker to establish the disease evolution in patients with COVID-19

Population preferences for sources that offers information about dietary fibres health effects - an international cross-sectional survey

Objective: To investigate the perceived importance of information about dietary fibre with regard to population socio -demographic characteristics and consumption patterns. Methods: The cross-sectional study was conducted from September to November, 2016, in six different counties and 57 cities across Romania, and was part of a larger project that had nine other countries as well. Data of the Romanian subjects was collected using a validated questionnaire that was disseminated across the 10 countries at the same time. Knowledge about dietary fibre was explored through 10 questions, and the respondents were asked to answer on a 5-point Likert scale varying from 1 (totally disagree) to 5 (totally agree). SPSS 22 was used for data anaylsis. Results: Of the 670 subjects, 358 (53.4%) were females, and the overall mean age was 35.81±15.61 years (range: 18-89 years). There were 298 (44.5%) subjects with a university degree, 314(46.9%) had completed high school and 57 (8.5%) had done primary school. Besides, 568 (84.8%) participants lived in an urban environment. Internet was the main source of getting information for 368(54.9%) subjects, while the lowest was hospitals 122 (18.2%). The percentage of correct answers regarding knowledge about health effects of dietary fibre was 23.12%. Most accurate answers were related to deficiency of vitamins and minerals 370 (55.5%), breast cancer 202(30.3%), vision problems 202(30.3%) and diabetes 168 (25.2%). The question with least accurate answer was the one about general preventive characteristics of dietary fibres 65 (9.7%). Conclusions: A proper and friendly way to transmit information about the importance of dietary fibre consumption is critical in promoting healthy diet patterns and in preventing non-transmissible diseases.info:eu-repo/semantics/publishedVersio

Pulsed Laser Fabrication of TiO₂ Buffer Layers for Dye Sensitized Solar Cells

We report on the fabrication of dye-sensitized solar cells with a TiO2 buffer layer between the transparent conductive oxide substrate and the mesoporous TiO2 film, in order to improve the photovoltaic conversion efficiency of the device. The buffer layer was fabricated by pulsed laser deposition whereas the mesoporous film by the doctor blade method, using TiO2 paste obtained by the sol&#8211;gel technique. The buffer layer was deposited in either oxygen (10 Pa and 50 Pa) or argon (10 Pa and 50 Pa) onto transparent conducting oxide glass kept at room temperature. The cross-section scanning electron microscopy image showed differences in layer morphology and thickness, depending on the deposition conditions. Transmission electron microscopy studies of the TiO2 buffer layers indicated that films consisted of grains with typical diameters of 10 nm to 30 nm. We found that the photovoltaic conversion efficiencies, determined under standard air mass 1.5 global (AM 1.5G) conditions, of the solar cells with a buffer layer are more than two times larger than those of the standard cells. The best performance was reached for buffer layers deposited at 10 Pa O2. We discuss the processes that take place in the device and emphasize the role of the brush-like buffer layer in the performance increase