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Tytuł:
Infection Control in the Post-Antibiotic Era
Autorzy:
Upla, Peter
Ukpanah, Mfonido
Gbadeyan, Femi
Uyi, Gerard
Dauda, Odenye
Powiązania:
https://bibliotekanauki.pl/articles/1114109.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Infection control
antibiotic resistance
hand hygiene
nosocomial infection
tetratogenic infection
transposons
Opis:
Antibiotic resistance by pathogenic microorganisms has become a major clinical and public health problem in the 21st century. Countries across the world are faced with restricted healthcare resources, high demand for modern drugs and increasing antimicrobial resistance. This escalation in antibiotic resistance is attributed to the misuse and over use of antibiotics, poor isolation practices and long hospital stay of patients who then become susceptible to nosocomial infection. The misuse and overuse of antibiotics is now generating resistance to almost all classes. However, it is pertinent to emphasize that even with the pervasive nature of antibiotic resistance worldwide; infections acquired by patients in the hospital must be treated. Thus, this review article proposes some control options and recommendations to protect us against resistant bacterial strains.
Źródło:
World News of Natural Sciences; 2017, 11; 37-44
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ChatGPT in hospital infection prevention and control – assessing knowledge of an AI model based on a validated questionnaire
Autorzy:
Jawanpuria, Ankita
Behera, Aruna Rani
Dash, Chinmaya
Hifz Ur Rahman, Mohammad
Powiązania:
https://bibliotekanauki.pl/articles/40570861.pdf
Data publikacji:
2024-06-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
artificial intelligence
ChatGPT
infection control
large language model
medical education
Opis:
Introduction and aim. An AI model like ChatGPT is a good source of knowledge. We can explore the potential of AI models to complement the expertise of healthcare professionals by providing real-time, evidence-based information in infection prevention and control (IPC). Material and methods. This study involved 110 queries related to IPC, validated by subject experts in IPC. The responses from ChatGPT were evaluated using Bloom’s taxonomy by experienced microbiologists. The scores were divided as <3 as being a poor response, 3–4 as an average response, and >4 as a good response. Statistical analysis was done by correlation coefficient and Cohen’s Kappa. Results. The overall score was 4.33 (95% CI, q1 3.65–q3 4.64) indicating ChatGPT’s substantial IPC knowledge. A good response (i.e.>4 score) was found in 70 (63.6%) questions, while in 10 (9%) questions, it showed a poor response. The poor response was seen in needle stick injury and personal protective equipment (PPE) doffing-related questions. The overall correlations were found to be significant. Cohen’s Kappa confirmed moderate to substantial agreement between evaluators. Conclusion. ChatGPT demonstrated a commendable understanding of IPC principles in various domains and the study identifies specific instances where the model may require further refinement especially in critical scenarios such as needlestick injuries and PPE doffing.
Źródło:
European Journal of Clinical and Experimental Medicine; 2024, 22, 2; 347-352
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ARIMA-based forecasting of the dynamics of confirmed Covid-19 cases for selected European countries
Autorzy:
Kufel, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/22444425.pdf
Data publikacji:
2020
Wydawca:
Instytut Badań Gospodarczych
Tematy:
Covid-19 epidemic
ARIMA model
forecasting
infection control
non-pharmaceutical intervention
Opis:
Research background: On 11 March 2020, the Covid-19 epidemic was identified by the World Health Organization (WHO) as a global pandemic. The rapid increase in the scale of the epidemic has led to the introduction of non-pharmaceutical countermeasures. Forecast of the Covid-19 prevalence is an essential element in the actions undertaken by authorities. Purpose of the article: The article aims to assess the usefulness of the Auto-regressive Integrated Moving Average (ARIMA) model for predicting the dynamics of Covid-19 incidence at different stages of the epidemic, from the first phase of growth, to the maximum daily incidence, until the phase of the epidemic's extinction. Methods: ARIMA(p,d,q) models are used to predict the dynamics of virus distribution in many diseases. Model estimates, forecasts, and the accuracy of forecasts are presented in this paper. Findings & Value added: Using the ARIMA(1,2,0) model for forecasting the dynamics of Covid-19 cases in each stage of the epidemic is a way of evaluating the implemented non-pharmaceutical countermeasures on the dynamics of the epidemic.
Źródło:
Equilibrium. Quarterly Journal of Economics and Economic Policy; 2020, 15, 2; 181-204
1689-765X
2353-3293
Pojawia się w:
Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal influenza vaccination of healthcare workers: a narrative review
Autorzy:
Jędrzejek, Michał J.
Mastalerz-Migas, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/2084883.pdf
Data publikacji:
2022-04-11
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
infection control
influenza
healthcare facilities
healthcare workers
healthcare personnel
influenza vaccination
Opis:
Influenza is an acute respiratory disease caused by the influenza virus which often occurs in outbreaks and epidemics worldwide. The World Health Organization recommends annual vaccination of healthcare workers (HCWs) against influenza, because most of them are involved in the direct care of patients with a high risk of influenza-related complications. Given the significance of the disease burden, a targeted literature review was conducted to assess issues related to influenza vaccination among HCWs. The primary aim of this review was to assess the incidence of influenza among medical personnel and healthcare-associated influenza, and to outline the benefits of influenza vaccination for patients and HCWs themselves. Vaccination of HCWs seems to be an important strategy for reducing the transmission of influenza from healthcare personnel to their patients and, therefore, for reducing patient morbidity and mortality, increasing patient safety, and reducing work absenteeism among HCWs. The benefits of influenza vaccination for their patients and for HCWs themselves are addressed in literature, but the evidence is mixed and often of low-quality.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2022, 35, 2; 127-139
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prevalence of blood-borne viruses among Iranian dentists: Results of a national survey
Autorzy:
Ahmad Akhoundi, Mohammad Sadegh
Momeni, Nafiseh
Norouzi, Mehdi
Ghalichi, Leila
Shamshiri, Ahmad Reza
Alavian, Seyed Moayed
Poortahmasebi, Vahdat
Jazayeri, Seyed Mohammad
Powiązania:
https://bibliotekanauki.pl/articles/2177368.pdf
Data publikacji:
2015-05-18
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
infection control
blood-borne viruses
dentists
Health care workers
occult hepatitis B infection
HBV vaccine
Opis:
Objectives Health care workers, including dentists, are at the front line for acquiring blood-borne virus infections. This study aimed to investigate the prevalence of hepatitis B, hepatitis C and human immunodeficiency viruses among Iranian dentists. Material and Methods The survey included 1628 dental health care workers who attended the 51st annual Congress of the Iranian Dental Association. Data on the risk of blood-borne virus transmission during health care and infection control practices were gathered from self-administered questionnaires. Sera were screened serologically by enzyme-linked immunosorbent assay (ELISA). The positive samples were examined by polymerase chain reaction (PRC) followed by direct sequencing. Results Six (0.36%) and 81 (5.0%) were positive for hepatitis B surface antigen (HBsAg) and (anti-hepatitis B virus core antigen (anti-HBc), respectively. Only 1 (0.061%) was positive for anti-hepatitis C virus (anti-HCV). No case was positive for anti-human immunodeficiency virus (anti-HIV). One case was diagnosed as being occult hepatitis B virus (HBV) infection. One thousand five hundred thirty-five (94.3%) of participants had received at least 1 dose of HBV vaccine. One thousand three hundred fifty-nine (88.5%) contained hepatitis B surface antibody (anti-HBs) > 10 IU/ml, of whom 55 (4.0%) were anti-HBc positive, suggesting that they had been infected with HBV in the past. Anti-HBc positive cases had past histories of hepatitis, either their own or their spouses’. Individuals with inadequate anti-HBs levels (< 10 IU/ml) were significantly more prevalent among anti-HBc positive cases (p < 0.001). Conclusions The prevalence of blood-borne viruses among dental HCWs found in this study was lower than past reports from Iranian dentists and general population. The implementation of HBV vaccination together with improvement in infection control procedures has reduced the potential for risk infection among Iranian dentists.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2015, 28, 3; 593-602
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of activities aimed at preventing microbiological risks in dental practice
Ocena działań ukierunkowanych na zapobieganie zagrożeniom mikrobiologicznym w pracy stomatologa
Autorzy:
Szymańska, Jolanta
Sitkowska, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/2168396.pdf
Data publikacji:
2014-10-29
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
sprzęt stomatologiczny
mikrobiologia wody
kontrola infekcji
dental equipment
water microbiology
infection control
Opis:
Background: Microbiological contamination of water in dental unit waterlines (DUWL) creates a risk of cross-infections, and is a source of biological risk factors in the work environment of a dentist. The aim of the study was to evaluate dentists' knowledge on DUWL microbiological contamination and the scope of activities/procedures they undertake to monitor it. Material and Methods: The questionnaire survey was conducted in 2010 among 107 Polish dentists using dental units in everyday clinical practice. Results: It has been found that in their daily practice, dentists do not follow procedures leading to reduction or elimination of microbiological contamination of dental unit reservoir water. They are not aware of microbiological contamination of DUWL that supply working handpieces with water. They are unaware of the principles of dealing with dental water and water supply systems or the health risk posed by microbiological contamination of unit water for a dental team and patients. Conclusions: It is necessary to provide dentists with information on microbiological contamination of water in dental units, on the correct procedures of handling water and waterlines that supply working handpieces with water. Med Pr 2013;64(1):11–17
Wstęp: Mikrobiologiczne skażenie wody w instalacji wodnej unitów dentystycznych stwarza zagrożenie zakażeniami krzyżowymi, stanowiąc źródło szkodliwych czynników biologicznych w środowisku pracy stomatologa. Celem badań była ocena wiedzy dentystów na temat skażenia mikrobiologicznego wody z unitów dentystycznych oraz zakresu czynności/procedur, które powinny być podejmowane w celu monitorowania tego skażenia. Materiał i metody: Badanie ankietowe przeprowadzono w 2010 r. wśród 107 polskich stomatologów używających unitów dentystycznych w praktyce klinicznej. Wyniki: W codziennej pracy dentyści nie stosują procedur minimalizujących/eliminujących mikrobiologiczne skażenie wody w zbiornikach unitów dentystycznych. Nie mają oni wiedzy na temat skażenia instalacji wodnej dostarczającej wodę do końcówek roboczych, nie znają zasad postępowania z wodą z unitów ani z instalacją wodną, nie są też świadomi zagrożeń zdrowotnych stwarzanych przez mikrobiologiczne skażenie wody w unitach dla zespołu stomatologicznego i pacjentów. Wnioski: Konieczne jest dostarczenie dentystom informacji na temat problemu mikrobiologicznego skażenia wody w unitach dentystycznych oraz procedur prawidłowego postępowania z wodą w instalacjach wodnych unitów. Med. Pr. 2013;64(1):11–17
Źródło:
Medycyna Pracy; 2013, 64, 1; 11-17
0465-5893
2353-1339
Pojawia się w:
Medycyna Pracy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prevention and Control of Legionella Infections in Mountain Huts – the New International Recommendation of the Medical Commission of the Union Internationale des Associations d’Alpinisme (UIAA MedCom)
Autorzy:
Donegani, Enrico
Zotti, Carla
Ditommaso, Savina
Stefanetti, Maria
Windsor, Jeremy
Hillebrandt, David
Küpper, Thomas
Powiązania:
https://bibliotekanauki.pl/articles/2098025.pdf
Data publikacji:
2020-12-06
Wydawca:
Państwowa Wyższa Szkoła Zawodowa w Tarnowie
Tematy:
Legionella pneumophila
legionelloza
higiena
schroniska górskie
kontrola infekcji
legionellosis
hygiene
mountain hut
infection control
Opis:
Legionnaire’s disease is a life threatening respiratory tract infection that is commonly associated with a stay in communal accommodations such as hotels, hostels, guesthouses and camping sites.In the European Alps and some other areas of the world mountain refuges and huts can sometimes accommodate over 100 guests in almost hotel like comfort. Such a “hut” may have cramped dormitories with multi-occupancy bunks and a basic water supply system possibly with hot water. Some will have showers. The water supply may be limited by the environment. As such these may pose a high risk for transmission of Legionellosis. In an environment of a hut which is more difficult to control than others. Unfortunately countries differ in their guidelines for the prevention of Legionnaire’s disease transmission within tourist accommodation. The aim of this paper is to propose a set of simple and pragmatic rules that can prevent the development of Legionella infections in mountain huts and other accommodations situated in the wilderness environment. 
Źródło:
Health Promotion & Physical Activity; 2020, 13, 4; 8-13
2544-9117
Pojawia się w:
Health Promotion & Physical Activity
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The prevalence and determinants of SARS-CoV-2 infections among healthcare workers, results of a cross-sectional study in the Silesian Voivodeship
Autorzy:
Wojczyk, Marek
Kowalska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2203014.pdf
Data publikacji:
2023-05-23
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
COVID-19
SARS-CoV-2
pandemics
infection control
health personnel
personal protective equipment
Opis:
Objectives A significant proportion of healthcare workers (HCWs) had been infected with SARS-CoV-2, which complicated the organization of patient care during the COVID-19 pandemic. However, the exact scale of infection prevalence among the group of HCWs is not known, therefore this study aimed to assess the prevalence of SARS-CoV-2 infection among HCWs in the Silesian voivodeship, Poland, and to define its determinants. Material and Methods The cross-sectional study was conducted in 2 multidisciplinary hospitals in the Silesian voivodeship during the period October 2021–February 2022. The standardized WHO questionnaire Surveillance protocol for SARS-CoV-2 infection among health workers was completed by 242 HCWs. To assess the prevalence of SARS-CoV-2 infection and its determinants, such as personal, occupational, and work environment-related conditions and preventive behaviors, the collected data were subjected to statistical analysis. For this purpose, descriptive and analytical statistics (significance of differences in χ² test) were used. Results Almost half (42.6%) of subjects were infected with coronavirus, most frequently care assistants (57.1%) and paramedics (50%). People suffering from chronic diseases were infected significantly more often (p < 0.001). The majority of the infected HCWs declared previous contact with COVID-19 patients (56.3%). Unfortunately, 10.3% of respondents refused to be vaccinated against COVID-19, most often care assistants (38.1%) and nurses (10.6%). The determinants such as sex, age, occupation, place of work (ward), participation in occupational safety and health training, use of personal protective equipment (PPE), or preventive behaviors did not significantly affect the risk of infection (p > 0.05). Conclusions Even though the PPE was used and the percentage of fully vaccinated HCWs against COVID-19 was high (89.7%), the frequency of SARS-CoV-2 infected HCWs remains high at 42.6% (95% CI: 40.7–44.5%). The main determinants of SARS-CoV-2 infection risk among HCWs were previous contact with infected individuals and the presence of chronic disease.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2023, 36, 2; 201-213
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sharps Injury Prevention for Hospital Workers
Autorzy:
Toraman, A. R.
Battal, F.
Ozturk, K.
Akcin, B.
Powiązania:
https://bibliotekanauki.pl/articles/90795.pdf
Data publikacji:
2011
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
hospital infection control
hospital infections
needlestick injuries
occupational health in hospitals
protective measures
sharps injuries
Opis:
Objectives. The purpose of this study was to collect data on self-reported sharps injuries to develop best practices to reduce them. Methods. Data on sharps injuries were collected for the period of January–October 2008 using Adverse Event Notification Forms already in use at Sema Hospital. Results. On average, 0.2% of all self-reported injuries were sharps injuries averaging one injury per month. Housekeeping staff sustained 64% of such injuries, nurses sustained 36% (5 incidents). Outpatient clinics experienced the most injuries at 28%, followed by the Internal Diseases Inpatient Unit with 21% and the Medical Waste Room with 14%. Injuries often occurred during contact with medical waste bags (28%) and while replacing full sharp-boxes (14%). Conclusion. In summary, reducing needle stick injuries is an important component of the occupational and patient safety program at Sema Hospital. The research described in this study allowed the hospital to provide targeted interventions to increase awareness of the risks of needle stick injuries and reduce such injuries. The steps used in the study can be used in any health care organization in the world to design a customized improvement plan to reduce risk and injury.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2011, 17, 4; 455-461
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Under-Reporting of Accidents Involving Biological Material by Nursing Professionals at a Brazilian Emergency Hospital
Autorzy:
Facchin, L. T.
Gir, E.
Pazin-Filho, A.
Hayashida, M.
da Silva Canini, S. R. M.
Powiązania:
https://bibliotekanauki.pl/articles/90558.pdf
Data publikacji:
2013
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
healthcare worker
infection control
emergency department
occupational exposure
pracownicy opieki zdrowotnej
oddział ratunkowy
narażenie zawodowe
Opis:
Background. Pathogens can be transmitted to health professionals after contact with biological material. The exact number of infections deriving from these events is still unknown, due to the lack of systematic surveillance data and under-reporting. Methods. A cross-sectional study was carried out, involving 451 nursing professionals from a Brazilian tertiary emergency hospital between April and July 2009. Through an active search, cases of under-reporting of occupational accidents with biological material by the nursing team were identified by means of individual interviews. The Institutional Review Board approved the research project. Results. Over half of the professionals (237) had been victims of one or more accidents (425 in total) involving biological material, and 23.76% of the accidents had not been officially reported using an occupational accident report. Among the underreported accidents, 53.47% were percutaneous and 67.33% were bloodborne. The main reason for nonreporting was that the accident had been considered low risk. Conclusions. The under-reporting rate (23.76%) was low in comparison with other studies, but most cases of exposure were high risk.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2013, 19, 4; 623-629
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Progress in the molecular methods for the detection and genetic characterization of Cryptosporidium in water samples
Autorzy:
Skotarczak, B
Powiązania:
https://bibliotekanauki.pl/articles/52184.pdf
Data publikacji:
2010
Wydawca:
Instytut Medycyny Wsi
Tematy:
protozoan parasite
Cryptosporidium
genetic characteristics
molecular method
detection
water sample
food-borne way
oocyst
infection control
Źródło:
Annals of Agricultural and Environmental Medicine; 2010, 17, 1; 1-8
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polish infection control nurses – Self-assessment of their duties and professional autonomy in different types of hospitals
Autorzy:
Wałaszek, Marta
Różańska, Anna
Szczypta, Anna
Bulanda, Małgorzata
Wójkowska-Mach, Jadwiga
Powiązania:
https://bibliotekanauki.pl/articles/2162576.pdf
Data publikacji:
2018-12-18
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
workplace
healthcare-associated infections
work organization
work load
infection prevention and control nurse
decision autonomy
Opis:
Background The objective of the study is self-assessment of Polish infection control nurses (ICNs) in terms of the structure of professional tasks and autonomy of decision-making. Material and Methods A questionnaire survey was filled out by 208 ICNs (around 21% of all Polish ICNs) in 15 provinces located in Poland. The research encompassed ICNs surveillance healthcare-associated infections (HAIs) in 2014. Results The work time that ICNs devote to professional tasks and decision autonomy on the scale of 1–100% was as follows: 34% (67% of decision autonomy) was dedicated to detecting and registering HAIs, 12% (71%) – internal control, 10% (58%) – devising and implementing infection prevention practices, 10% (68%) – staff trainings, 8% (65%) – identification and study of outbreaks, 7% (58%) – promoting hand hygiene, 6% (51%) – consults with infected patients, 4% (57%) – consults on decontamination, 4% (54%) – consults on maintaining cleanliness, 3% (51%) – isolation and application of personal protective measures, 2% – other tasks. Infection prevention and control nurses estimated, on average, that their autonomy of decisions concerning the professional tasks performed amounted to 60%. Conclusions Infection control nurses in Poland have difficulty in achieving balance between tasks they perform and the authority they exercise. The ICN professional task structure is dominated by duties associated with monitoring hospital infections, however, the greatest decision autonomy is visible regarding internal control. Decision-making concentrated on internal control may hinder building a positive image of an ICN. We should strive to firmly establish professional tasks and rights of ICNs in legislation concerning performing the duties of a nurse and midwife. Med Pr 2018;69(6):605–612
Wstęp The objective of the study is self-assessment of Polish infection control nurses (ICNs) in terms of the structure of professional tasks and autonomy of decision-making. Materiał i metody A questionnaire survey was filled out by 208 ICNs (around 21% of all Polish ICNs) in 15 provinces located in Poland. The research encompassed ICNs surveillance healthcare-associated infections (HAIs) in 2014. Wyniki The work time that ICNs devote to professional tasks and decision autonomy on the scale of 1–100% was as follows: 34% (67% of decision autonomy) was dedicated to detecting and registering HAIs, 12% (71%) – internal control, 10% (58%) – devising and implementing infection prevention practices, 10% (68%) – staff trainings, 8% (65%) – identification and study of outbreaks, 7% (58%) – promoting hand hygiene, 6% (51%) – consults with infected patients, 4% (57%) – consults on decontamination, 4% (54%) – consults on maintaining cleanliness, 3% (51%) – isolation and application of personal protective measures, 2% – other tasks. Infection prevention and control nurses estimated, on average, that their autonomy of decisions concerning the professional tasks performed amounted to 60%. Wnioski Infection control nurses in Poland have difficulty in achieving balance between tasks they perform and the authority they exercise. The ICN professional task structure is dominated by duties associated with monitoring hospital infections, however, the greatest decision autonomy is visible regarding internal control. Decision-making concentrated on internal control may hinder building a positive image of an ICN. We should strive to firmly establish professional tasks and rights of ICNs in legislation concerning performing the duties of a nurse and midwife. Med Pr 2018;69(6):605–612
Źródło:
Medycyna Pracy; 2018, 69, 6; 605-612
0465-5893
2353-1339
Pojawia się w:
Medycyna Pracy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A control Lyapunov function approach to adaptive control of HIV-1 infection
Autorzy:
Lemos, J. M.
Barao, M. S.
Powiązania:
https://bibliotekanauki.pl/articles/229511.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nonlinear adaptive control
HIV-1 infection
immunology
exact linearization
control Lyapunov function
Opis:
This paper presents an algorithm for nonlinear adaptive control of the viral load in HIV-1 infection. The infection model considered is a reduced complexity nonlinear state-space model with two state variables, that represent the plasma concentration of uninfected and infected CD4+ T-cells of the human immune system. The viral load is assumed to be proportional to the concentration of infected cells. First, a change of variables that exactly linearizes the system is obtained. For the resulting linear system the manipulated variable is obtained by state feedback. To compensate for the uncertainty in the infection parameter of the model an estimator based on a Control Lyapunov Function is designed.
Źródło:
Archives of Control Sciences; 2012, 22, 3; 273-284
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Association between socio-demographic factors, healthy lifestyle factors, and infection prevention behavior among University students: a cross-sectional study
Związek pomiędzy czynnikami społeczno-demograficznymi, czynnikami zdrowego stylu życia i zachowaniami zapobiegającymi zakażeniom wśród studentów uniwersytetu: badanie przekrojowe
Autorzy:
Gill, G.
Powiązania:
https://bibliotekanauki.pl/articles/2048069.pdf
Data publikacji:
2021
Wydawca:
Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:
infection transmission
community medicine
prevention and control
pandemics
disease outbreaks
epidemiology
Opis:
Background. This study investigated the association between infection prevention behavior and socio-demographic and other lifestyle factors among the Lithuanian public and private university students. Material and methods. The cross-sectional survey took place from 15 January to 28 February 2021, and a total of 234 students responded to the survey. Survey questions included socio-demographic factors, compliance to hand hygiene, attitude towards vaccination, safe sexual behavior and risky sexual behavior, self-rated health, eating habits, physical activity, and compliance with COVID-19 preventative measures. Independent sample t-test, oneway ANOVA, correlation bivariate, and multiple regression tests were used to analyze the association between different factors. Results. Students with better health showed higher compliance to hand hygiene, but reported lower safe sex practices (p<0.05). Likewise, students with chronic disorders were more skeptical of vaccines (p<0.05). Students reporting healthy eating habits displayed a higher compliance to hand hygiene (p<0.05) and safe sex (p<0.05), while students who were more physically active showed lower confidence in vaccines (p<0.05). Conclusions. This study indicates that significant correlations exist between numerous variables related to socio-demographic and lifestyle factors with infection prevention behavior. Moreover, there is a need to increase the compliance of infection prevention behavior among youth. Hence, more health promotion programs should be implemented focusing on infection prevention behavior in young individuals.
Źródło:
Health Problems of Civilization; 2021, 15, 3; 187-195
2353-6942
2354-0265
Pojawia się w:
Health Problems of Civilization
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of control of take-all in winter wheat by seed dressing at different levels of root infection
Autorzy:
Krzyzinska, B.
Dolezych, D.
Maczynska, A.
Sikora, H.
Powiązania:
https://bibliotekanauki.pl/articles/66678.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
seed treatment
control
wheat
root infection
effectiveness
winter wheat
Geaumannomyces graminis
Źródło:
Journal of Plant Protection Research; 2002, 42, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł

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