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Tytuł:
An analytical insight to investigate the research patterns in the realm of Type-2 fuzzy logic
Autorzy:
Vij, S.
Jain, A.
Tayal, D.
Castillo, O.
Powiązania:
https://bibliotekanauki.pl/articles/951726.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
scientometric analysis
Type 2 fuzzy logic
Type 2 fuzzy systems
Type 2 fuzzy control
Type 2 fuzzy set
analiza scjentometryczna
logika rozmyta typu 2
systemy rozmyte typu 2
Opis:
Fuzzy logic has always been one of the key research areas in the field of computer science as it helps in dealing with the real world vagueness and uncertainty. In recent years, a variant of it, Type-2 Fuzzy Logic has gained enormous popularity for research purposes. In this paper, an analytical insight is provided into the research patterns of Type-2 Fuzzy logic. Web of Science has been used as the data source which consists of Science Citation Index- Expanded (SCI-E), SSCI, A&HCI and ESCI indexed research papers. 600 research papers were extracted from it in the field of Type-2 fuzzy logic from the year 2000 to 2016, which are analyzed both manually and in an automated manner. The performed study is Scientometric in nature and helps in answering research questions like control terms and top authors in this field, the growth pattern in research publications, top funding agencies and countries etc. The major goal of this study is to analyze the research work in type-2 fuzzy logic so as to track the growth of this discipline through the years and envision future trends in this area.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2018, 12, 2; 3-32
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A decomposition approach to type 2 interval arithmetic
Autorzy:
Piegat, Andrzej
Dobryakova, Larisa
Powiązania:
https://bibliotekanauki.pl/articles/330100.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
multidimensional RDM interval arithmetic
type 2 interval arithmetic
RDM type 2 interval arithmetic
decomposition type 2 interval arithmetic
interval arithmetic
Opis:
The classic interval has precise borders A = [a, ā] . Therefore, it can be called a type 1 interval. Because of great practical importance of such interval data, several versions of type 1 interval arithmetic have been created. However, sometimes precise borders a and ā of intervals cannot be determined in practice. If the borders are uncertain, then we have to do with type 2 intervals. A type 2 interval can be denoted as AT2 = [aL, aR], [āL, āR]. The paper presents multidimensional decomposition RDM type 2 interval arithmetic (D-RDM-T2-I arithmetic), where RDM means relative-distance measure. The decomposition approach considerably simplifies calculations and is transparent for users. Apart from this arithmetic, examples of its applications are also presented. To the authors’ best knowledge, no papers on this arithmetic exist. D-RDM-T2-I arithmetic is necessary to create type 2 fuzzy arithmetic based on horizontal µ-cuts, which the authors aim to do.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2020, 30, 1; 185-201
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Homocysteine as a non-classical risk factor for atherosclerosis in relation to pharmacotherapy of type 2 diabetes mellitus
Autorzy:
Borowska, Magdalena
Dworacka, Marzena
Winiarska, Hanna
Krzyżagórska, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/1038542.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
homocysteine
atherosclerosis
type 2 diabetes
Opis:
Aims. The aim of our study was to evaluate which of the pharmacotherapeutic methods that are frequently used to treat type 2 diabetes is associated with the most beneficial profile in relation to pro-atherogenic homocysteine levels. Patients and Methods. We measured the serum homocysteine level in 182 patients with type 2 diabetes treated with metformin (89), treated with insulin in combination with metformin (31), receiving sulfonylureas (31) and treated conventionally with insulin (31). The total homocysteine levels in the serum were assayed. To exclude the influence of selected metabolic and anthropometric factors on the differences between the examined groups, multivariate analysis of covariance was used (ANCOVA). In this analysis, serum homocysteine concentration was the dependent variable, while diabetes duration, waist circumference, HbA1c, 1,5-anhydro-D-glucitol, fasting glycaemia and peptide C were used as covariates. Results. The serum homocysteine levels in patients treated with insulin in monotherapy were significantly higher than what was observed in the metformin treated subjects and in the patients receiving insulin combined with metformin. The analysis of covariance also confirmed that the differences between the therapeutic groups were affected by waist circumference and the C-peptide levels. Conclusion. We conclude that conventional insulin therapy may have a negative effect on pro-atherogenic homocysteine levels in patients with type 2 diabetes. This study revealed that pro-atherogenic homocysteine levels may not only be modified by pharmacotherapy of type 2 diabetes, but also by beta cell secretory function and abdominal obesity.
Źródło:
Acta Biochimica Polonica; 2017, 64, 4; 603-607
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A constructive approach to managing fuzzy subsets of type 2 in a decision making
Autorzy:
Dymova, L.
Powiązania:
https://bibliotekanauki.pl/articles/1931580.pdf
Data publikacji:
2003
Wydawca:
Politechnika Gdańska
Tematy:
fuzzy systems of type 2
fuzzy sets of type 2
hyperfuzzy sets
decision making
Opis:
The aim of this paper is to present a constructive methodology and algorithms for operations with fuzzy sets of type 2. The need to elaborate this methodology came from practical problems of Decision Making. To realize the methodology, some simplifications of the problem have been introduced. Particularly, only the trapezium form of membership functions was used. To highlight the difference between the proposed approach and the classical theory of fuzzy sets of type 2, the terms "hyperfuzzy set" and "hyperfuzzy function" have been introduced. Some base situations of hyperfuzzy functions with real arguments and real functions of hyperfuzzy arguments are performed.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2003, 7, 1; 157-164
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Levels of interleukin-2 in patients with colon cancer and diabetes type 2
Autorzy:
Bosek, Irina
Sulich, Agnieszka
Rabijewski, Michał
Kaleta, Beata
Kniotek, Monika
Miłek, Tomasz
Piątkiewicz, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/972606.pdf
Data publikacji:
2016
Wydawca:
Instytut Medycyny Wsi
Tematy:
diabetes type 2
colon cancer
interleukin-2
Opis:
Introduction and objective: The risk of development colon cancer (CC) is increased significantly among patients with the type 2 diabetes (T2DM). A mechanism responsible for the higher prevalence of CC among diabetic patients may be associated with the immunity system. The aim of this study is to point out the differences in the immunity state in terms of interleukin 2 level among patients with T2DM suffering from CC, and patients without these diseases Material and Methods: 79 patients were included the tests, divided into 4 groups: Group 1–23 people with T2DM, Group 2–23 people with large intestine CC, Group 3–10 people with large CC and T2DM, and Group 4–23 people without T2DM or CC. Each patient had a colonoscopy and those with cancer were confirmed in a histopathological examination. Laboratory measurements included fasting glucose, insulin, C-peptide. The concentration of interleukin-2 in serum was determined with the immunoenzymatic (ELISA) method. Results: The results obtained showed that in patients with T2DM and CC the concentration of interleukin-2 was statistically higher than in the other groups.(4.21±1.61 pg/ml vs. Group 1 -1.64±0.44 pg/ml, Group 2–1.54±0.21 pg/ml, and Group 4–1.70±0.36 pg/ml; p<0.05). Insulin levels, C-peptide and HOMA-IR did not differ significantly between groups, but a tendency was observed to higher values of HOMA-IR and insulin levels in the groups with T2DM alone and T2DM with concomitant CC. Conclusions: The data show differences in the immunity state of patients with T2DM and CC, compared with people without those two diseases. Elevated level of interleukin 2 found in this group, after confirmation in other studies with more patients, could be used as a marker of an increased risk of CC in people with T2DM
Źródło:
Journal of Pre-Clinical and Clinical Research; 2016, 10, 1; 1-5
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Type 2 diabetes risk factors among the unemployed
Autorzy:
Filarski, R.
Powiązania:
https://bibliotekanauki.pl/articles/2052270.pdf
Data publikacji:
2014
Wydawca:
Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:
unemployment
type 2 diabetes
risk factors
Opis:
Unemployment is a significant social problem which has numerous negative health consequences. Findings of numerous researches provide  data on the range of the consequences of unemployment with risk of health deterioration being one of the most important. Unemployment remains an area of interest for the following fields of science: psychology, economics, sociology. More and more researches prove that there is a link between the increase of disease occurrence and death rate and long-term unemployment. Both in Poland and all over the world a steady increase in the incidence of type 2 diabetes is being observed. World Health Organization (WHO) estimates that, taking into consideration present dynamics of changes, in 2025 there will be 300 million people diagnosed with diabetes. That is why a diabetes epidemic is such a topical issue, and according to some epidemic data this epidemic is starting to reach Poland as well. Data provided by IDF (International Diabetes Federation) show that in Poland the percentage of diabetes patients is 9,1% of the whole population and it is a little higher than the European average (8,6%). It is predicted that by 2015 the percentage will rise to 11%. Identification of adverse health behaviors and introducing actions promoting health in a given population group can prove to be beneficial for the present condition of members of a given group as well as decrease the risk connected with the occurrence of diseases associated with the progress of civilization in the future. The aim of the article is to indicate type 2 diabetes risk factors among the unemployed in Poland.
Źródło:
Health Problems of Civilization; 2014, 08, 4; 4-8
2353-6942
2354-0265
Pojawia się w:
Health Problems of Civilization
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A novel approach to type-reduction and design of interval type-2 fuzzy logic systems
Autorzy:
Starczewski, Janusz T.
Przybyszewski, Krzysztof
Byrski, Aleksander
Szmidt, Eulalia
Napoli, Christian
Powiązania:
https://bibliotekanauki.pl/articles/2147137.pdf
Data publikacji:
2022
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
smooth type-reduction
interval type-2 fuzzy logic systems
Opis:
Fuzzy logic systems, unlike black-box models, are known as transparent artificial intelligence systems that have explainable rules of reasoning. Type 2 fuzzy systems extend the field of application to tasks that require the introduction of uncertainty in the rules, e.g. for handling corrupted data. Most practical implementations use interval type-2 sets and process interval membership grades. The key role in the design of type-2 interval fuzzy logic systems is played by the type-2 inference defuzzification method. In type-2 systems this generally takes place in two steps: type-reduction first, then standard defuzzification. The only precise type-reduction method is the iterative method known as Karnik-Mendel (KM) algorithm with its enhancement modifications. The known non-iterative methods deliver only an approximation of the boundaries of a type-reduced set and, in special cases, they diminish the profits that result from the use of type-2 fuzzy logic systems. In this paper, we propose a novel type-reduction method based on a smooth approximation of maximum/minimum, and we call this method a smooth type-reduction. Replacing the iterative KM algorithm by the smooth type-reduction, we obtain a structure of an adaptive interval type-2 fuzzy logic which is non-iterative and as close to an approximation of the KM algorithm as we like.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2022, 12, 3; 197--206
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Arterial stiffness can predict cardiorespiratory fitness in type 2 diabetic patients?
Autorzy:
Italiano Monteiro, Clara
Polaquini Simões, Rodrigo
Domingues Heubel, Alessandro
Donisete da Silva, Claudio
Ricci, Paula Angélica
Petronilho, Ariane
Borghi-Silva, Audrey
Gonçalves Mendes, Renata
Powiązania:
https://bibliotekanauki.pl/articles/2049182.pdf
Data publikacji:
2022-03-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
augmentation index
cardiorespiratory fitness
type 2 diabetes
Opis:
Introduction and aim. Arterial stiffness (AS) has been associated with reduced cardiorespiratory fitness (CRF). The aim of this study was to verify if there is a relationship between augmentations index (AIx), as an index for AS assessment, and CRF in individuals with type 2 Diabetes Mellitus (T2DM). Material and methods. Observational cross-sectional study including 32 individuals diagnosed with T2DM who performed two evaluations: 1. Arterial stiffness assessment using SphygmoCor and 2. CRF throughout a cardiopulmonary exercise test on a treadmill ergometer. Oxycon Mobile® device was used to obtain oxygen uptake consumption at peak (V˙O2peak); oxygen uptake efficiency slope (OUES) determined by linear regression in reason of the logarithmic transformation of the ventilation and V˙O2 obtained every minute of exercise test. Statistical analysis comprised Pearson’s Correlation and linear regression analysis performed in SigmaPlot. Results. There was a significant correlation between AS and CRF: AIx and OUES; AIx@75 and; OUES. In linear regression, AIx was determinant for V˙O2peak and OUES – AIx and; AIx@75 and V˙O2peak. Conclusion. AS was associated with CRF in individuals with T2DM. These results contribute to the body of evidence linking arterial functional properties to CRF and suggests greater attention for this important index.
Źródło:
European Journal of Clinical and Experimental Medicine; 2022, 1; 28-35
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of socioeconomic, behavioral and biological factors between healthy patients and patients with newly diagnosed diabetes in the Lubuskie Voivodeship
Autorzy:
Bonikowska, I.
Jasik-Pyzdrowska, J.
Szwamel, K.
Powiązania:
https://bibliotekanauki.pl/articles/2087637.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Opolski. Instytut Nauk o Zdrowiu
Tematy:
patients
type 2 diabetes mellitus
prediabetic state
Opis:
Background: The most effective way to prevent an increasing diabetic population lies in early detection of risk factors and diagnosis of carbohydrate metabolism disorders. Aim of the study: The study aimed at determining socio-economic variables, lifestyle behaviours and biological factors differentiating patients with newly diagnosed diabetes from diabetes-free individuals. Material and methods: Assessment of diabetic vs. non-diabetic individuals was performed according to the American criteria issued by the Commission on Social Determinants of Health as well as the FINDRISC form, which helps identify patients who are at risk of developing type 2 diabetes on the basis of multi-factorial determinants of its development. The research was conducted in 2018 among 1167 primary health care patients from Lubuskie Voivodeship using a diagnostic survey method which interviewed the respondents according to the FINDRISC standard questionnaire. Results: The group of healthy patients was similar to the group of patients with newly diagnosed diabetes with respect to variables such as age (p=0.713), sex (p=1), place of residence (p=1), level of education (p=0.076), professional activity (p=0.758), BMI (p=0.133), waist measurement (p=0.665), frequency of fruit and vegetables intake (p=0.572), frequency of taking hypotensive medications (p=0.176), frequency of diabetes occurrence in the family history (p=0.227) and physical activity (p=0.321). Conclusions: Early detection of carbohydrate metabolism disorders, with the use of standardised tools that assess diabetes development, appears to be essential in the prevention of this disorder. Therefore, there is a strong need to create a tool adjusted to socio-demographic factors such as geographical location, economic conditions and lifestyle. Additionally, active and massive screening for carbohydrate metabolism disorders in patients with a low risk of diabetes seems to be crucial in its prevention.
Źródło:
Medical Science Pulse; 2020, 14, 3; 55-63
2544-1558
2544-1620
Pojawia się w:
Medical Science Pulse
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the protective efficacy of virus-like particles based on PCV 2b and 2d subtypes against mixed challenge in mice
Autorzy:
Yuan, X.M.
Yuan, Q.C.
Feng, S.M.
Deng, Z.B.
Powiązania:
https://bibliotekanauki.pl/articles/16539142.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
type 2
virus-like particles
vaccine
mouse
Opis:
Porcine circovirus type 2 (PCV2) is an economically important swine pathogen and, although small, it has the highest evolution rate among DNA viruses. Commercial PCV2 commercial vaccines are inactivated PCV2 isolates or a subunit vaccine based on the Cap protein of PCV2. Currently, PCV2 VLPs of individual subtype vaccines are available. Although the main prevalent genotype worldwide is PCV2b, the emerging subtype PCV2d subtype is also increasingly associated with PCV disease. The aim of the study was to evaluate the protective efficacy of VLP based on the PCV2b and 2d subtypes against the mixed challenge of two hypotype PCV2 in mice. Thirty-six female SPV Kunming mice were immunized twice with PCV2b and 2d VLPs, then challenged with PCV2b and PCV2d, to assess the immunogenicity and effectiveness of the VLPs. Vaccination of the mice with PCV2b and 2d VLPs elicited a robust antibody response specific for the PCV2. The virus load detected in the 2b and 2d spleen vaccine group was the lowest compared to other groups. Furthermore, there was no pathological damage in the HE stained sections of the 2b and 2d spleen vaccine, and no virus was detected in the immunohistochemical sections. Our data suggest that the mixed PCV2b and 2d VLP vaccine could protect mice from challenge with the mixed infection of PCV2b and PCV2d.
Źródło:
Polish Journal of Veterinary Sciences; 2022, 25, 2; 195-205
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
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