Competition-based rating system for medical website credibility

In this paper, we propose a new approach to the aggregation of monadic ratings (5-step scale) done by crowdsourcing users for the evaluation of medical websites. We compare them pairwise with other evaluations done by the same users for other websites (whether they are higher or lower), and we will use an Elo rating algorithm to calculate website “credibility” values. Results show that this method of crowdsourcing evaluation is highly correlated with expert evaluations. As proposed, a competition-based model uses a 5-step scale as ordinal and only compares which website is rated higher or lower by the same user. This approach can solve many problems associated with a 5-point scale, such as different understanding by users, user bias, and distribution skewness that can be clearly observed in results

Looking for big money in the grey zone. Simulation of High Yield Investment Programs strategies

High Yield Investment Programs (HYIPs) are online versions of a Ponzi scheme, a fraud that offers extremely high interest rates to attract investors – and pays them up to the moment when HYIP owner decides to run away with the money accumulated in the account. This article presents a simulation focused on the connections between investments in appealing websites, advertising, and runaway strategies to explore and describe one of the grey zone areas. The model is based to a large extent on real-life data acquired from HYIP monitors. In this paper, we have proven that advertising and layout have a great impact on an HYIP’s balance. Moreover, most HYIPs are capable of gaining similar balance; however, there are also conservative strategies that significantly reduce profits

Real-time Assessment of Right and Left Ventricular Volumes and Function in Children Using High Spatiotemporal Resolution Spiral bSSFP with Compressed Sensing

Background: Real-time (RT) assessment of ventricular volumes and function enables data acquisition during free-breathing. However, in children the requirement for high spatiotemporal resolution requires accelerated imaging techniques. In this study, we implemented a novel RT bSSFP spiral sequence reconstructed using Compressed Sensing (CS) and validated it against the breath-hold (BH) reference standard for assessment of ventricular volumes in children with heart disease. Methods: Data was acquired in 60 children. Qualitative image scoring and evaluation of ventricular volumes was performed by 3 clinical cardiac MR specialists. 30 cases were reassessed for intra-observer variability, and the other 30 cases for inter-observer variability. Results: Spiral RT images were of good quality, however qualitative scores reflected more residual artefact than standard BH images and slightly lower edge definition. Quantification of Left Ventricular (LV) and Right Ventricular (RV) metrics showed excellent correlation between the techniques with narrow limits of agreement. However, we observed small but statistically significant overestimation of LV end-diastolic volume, underestimation of LV end-systolic volume, as well as a small overestimation of RV stroke volume and ejection fraction using the RT imaging technique. No difference in inter-observer or intra-observer variability were observed between the BH and RT sequences. Conclusions: Real-time bSSFP imaging using spiral trajectories combined with a compressed sensing reconstruction is feasible. The main benefit is that it can be acquired during free breathing. However, another important secondary benefit is that a whole ventricular stack can be acquired in ~20 seconds, as opposed to ~6 minutes for standard BH imaging. Thus, this technique holds the potential to significantly shorten MR scan times in children

ACE inhibitor therapy: Possible effective prevention of new-onset atrial fibrillation following cardiac surgery

Background: Atrial fibrillation (AF) is a common complication after coronary artery bypass grafting (CABG). The aims of the study were to assess possible predictors and identify modes of prevention of new-onset AF following coronary surgery. Methods: Retrospective clinical and statistical analysis was made of the medical records of 217 patients who had undergone coronary surgery. Results: AF occurred in 28% (61/217) of the patients. In univariate analysis the age of the patients with AF was higher (p = 0.0033), they had a longer history of coronary disease (p = 0.0417) and more had > 3 grafts (p < 0.05). Low ejection fraction (< 40%) was also a risk factor of arrhythmia (p < 0.0001). In multivariate regression analysis two independent predictors of AF were identified: no ACE inhibitor treatment before surgery (p = 0.0005) and age > 60 years (p < 0.01). Patients with AF had a higher mean heart rate after the procedure: 115 &#177; 34 vs. 78 &#177; 21/min (p < 0.0005). Patients treated with ACE inhibitors before and after surgery had a lower incidence of AF than non-treated patients: 8% vs. 48% (p < 0.0001) and 4% vs. 61%, p < 0.0001) respectively. Beta-blocker treatment before and after surgery resulted in a lower incidence of AF: at 23% vs. 75% (p < 0.001) and 19% vs. 96% (p < 0.0001), respectively. Conclusions: No ACE inhibitor therapy before surgery, advanced age, low ejection fraction, high post-procedure heart rate, duration of coronary disease and the number of grafts (corresponding to the length of the procedure) were found to be strong probable predictors of AF following cardiac surgery. ACE inhibitor therapy may be effective in the prevention of newonset AF. Treatment based on individual variables is crucial for proper treatment and to diminish the risk of arrhythmia. (Cardiol J 2007; 14: 274-280

Older adults and hackathons: a qualitative study

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Zgodność pomiędzy wynikami testu FMS a częstością występowania kontuzji u siatkarek na przykładzie drużyny II ligowej = The consistency between the FMS test results and the frequency of injuries in II league female volleyball players

Siedlaczek Marcin, Srokowski Grzegorz, Łukasiewicz Hanna, Srokowska Anna, Kowalik Tomasz, Piekorz Zuzanna, Zukow Walery. Zgodność pomiędzy wynikami testu FMS a częstością występowania kontuzji u siatkarek na przykładzie drużyny II ligowej = The consistency between the FMS test results and the frequency of injuries in II league female volleyball players. Journal of Education, Health and Sport. 2015;5(8):529-539. ISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.44362http://ojs.ukw.edu.pl/index.php/johs/article/view/2015%3B5%288%29%3A529-539https://pbn.nauka.gov.pl/works/688455Formerly Journal of Health Sciences. ISSN 1429-9623 / 2300-665X. Archives 2011–2014http://journal.rsw.edu.pl/index.php/JHS/issue/archive Deklaracja.Specyfika i zawartość merytoryczna czasopisma nie ulega zmianie.Zgodnie z informacją MNiSW z dnia 2 czerwca 2014 r., że w roku 2014 nie będzie przeprowadzana ocena czasopism naukowych; czasopismo o zmienionym tytule otrzymuje tyle samo punktów co na wykazie czasopism naukowych z dnia 31 grudnia 2014 r.The journal has had 5 points in Ministry of Science and Higher Education of Poland parametric evaluation. Part B item 1089. (31.12.2014).© The Author (s) 2015;This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland and Radom University in Radom, PolandOpen Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium,provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License(http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited.This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercialuse, distribution and reproduction in any medium, provided the work is properly cited.The authors declare that there is no conflict of interests regarding the publication of this paper.Received: 26.07.2015. Revised 05.08.2015. Accepted: 25.08.2015. Zgodność pomiędzy wynikami testu FMS a częstością występowania kontuzji u siatkarek na przykładzie drużyny II ligowejThe consistency between the FMS test results and the frequency of injuries in II league female volleyball players Marcin Siedlaczek1, Grzegorz Srokowski1, Hanna Łukasiewicz2, Anna Srokowska2, Tomasz Kowalik2, Zuzanna Piekorz1, Walery Zukow3 1. Katedra Fizjoterapii, Zakład Kinezyterapii i Masażu Leczniczego, UMK w Toruniu CM im. L. Rydygiera w Bydgoszczy, ul. Techników 3, 85- 801 Bydgoszcz2. Katedra i Zakład Podstaw Kultury Fizycznej, UMK w Toruniu CM im. L. Rydygiera w Bydgoszczy, ul. Świętojańska 20, 85- 077 Bydgoszcz3. Wydział Kultury Fizycznej, Zdrowia i Turystyki, Uniwersytet Kazimierza Wielkiego w Bydgoszczy, Bydgoszcz  Adres do korespondencji: Marcin Siedlaczek, Katedra Fizjoterapii Zakład Kinezyterapii i Masażu Leczniczego, UMK w Toruniu CM im. L. Rydygiera w Bydgoszczy, ul. Techników 3  Bydgoszcz, [email protected] Grzegorz Srokowski, Katedra Fizjoterapii Zakład Kinezyterapii i Masażu Leczniczego, UMK w Toruniu CM im. L. Rydygiera w Bydgoszczy, ul. Techników 3 Bydgoszcz [email protected] Słowa kluczowe: FMS, siatkówka, urazy.Key words: FMS, volleyball, injury. SummaryIntroduction and aim of the study:            Volleyball is a team sport in which the results consist of a large number of factors. The risk of injury for daily training is very high. Volleyball is also an asymmetric sport, which further increases the risk of injury. Simple screening test, which is Functional Movement Screen, will reduce this risk, so I think that a lot of clubs will decide to implement of it.The main aim of this study is to present and compare the results of the functional assessment of motor and susceptibility to injury in female volleyball players and their interplay with injuries which happened in the last three years. Aim of the study was carried out based on the study material comprising a group of 15 women, practicing volleyball professionally. The research group age was between of 20-35 years.Material and Method:            Functional Movement Screen- functional screening was the research method.  It is using the seven tests which can assess the patient's/athlete’s basic movement patterns. All motion tasks are assessed on a scale 0 to 3. The players also filled the questionnaire.Results:Maximum disturbance revealed deep squat test. The smallest disorders showed shoulder mobility test for the left hand and in line lunge test for the left leg. Three of the five single limb tests showed asymmetry: hurdle step, deep squat, shoulder mobility. 53% of players have experienced a serious injury in the last three seasons.  The two players with the highest number of FMS points have not been seriously injured so far.Discussion and Conclusion:The consistency between the FMS test results and the frequency of injuries in II league female volleyball players was different, then in other studies.  For the participants deep squat was the most difficult test, over 50% of players had painful knees, average points in FMS test was 14,73

Wpływ prądów TENS średniej częstotliwości na czynność bioelektyczną mięśni prostowników nadgarstka = The influence of mid-frequency TENS currents on bioelectrical activity of the wrist extensor muscles

Srokowski Grzegorz, Piekorz Zuzanna, Siedlaczek Marcin, Kowalik Tomasz, Paduch Daria, Srokowska Anna, Zukow Walery. Wpływ prądów TENS średniej częstotliwości na czynność bioelektyczną mięśni prostowników nadgarstka = The influence of mid-frequency TENS currents on bioelectrical activity of the wrist extensor muscles. Journal of Education, Health and Sport. 2015;5(9):768-791. ISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.44371http://ojs.ukw.edu.pl/index.php/johs/article/view/2015%3B5%289%29%3A768-791https://pbn.nauka.gov.pl/works/688573Formerly Journal of Health Sciences. ISSN 1429-9623 / 2300-665X. Archives 2011–2014http://journal.rsw.edu.pl/index.php/JHS/issue/archive Deklaracja.Specyfika i zawartość merytoryczna czasopisma nie ulega zmianie.Zgodnie z informacją MNiSW z dnia 2 czerwca 2014 r., że w roku 2014 nie będzie przeprowadzana ocena czasopism naukowych; czasopismo o zmienionym tytule otrzymuje tyle samo punktów co na wykazie czasopism naukowych z dnia 31 grudnia 2014 r.The journal has had 5 points in Ministry of Science and Higher Education of Poland parametric evaluation. Part B item 1089. (31.12.2014).© The Author (s) 2015;This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland and Radom University in Radom, PolandOpen Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium,provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License(http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited.This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercialuse, distribution and reproduction in any medium, provided the work is properly cited.The authors declare that there is no conflict of interests regarding the publication of this paper.Received: 25.08.2015. Revised 25.09.2015. Accepted: 30.09.2015. Wpływ prądów TENS średniej częstotliwości na czynność bioelektyczną mięśni prostowników nadgarstkaThe influence of mid-frequency TENS currents on bioelectrical activity of the wrist extensor muscles Grzegorz Srokowski1, Zuzanna Piekorz1, Marcin Siedlaczek1, Tomasz Kowalik2, Daria Paduch1, Anna Srokowska2, Walery Zukow3 1.       Katedra Fizjoterapii Zakład Kinezyterapii i Masażu Leczniczego, UMK w Toruniu CM im. L. Rydygiera w Bydgoszczy, ul. Techników 3, 85- 000 Bydgoszcz2.       Katedra i Zakład Podstaw Kultury Fizycznej, UMK w Toruniu CM im. L. Rydygiera w Bydgoszczy, ul. Świętojańska 20, 85- 077 Bydgoszcz3.       Wydział Kultury Fizycznej, Zdrowia i Turystyki, Uniwersytet Kazimierza Wielkiego w Bydgoszczy Korespondencja:Grzegorz Srokowski, Katedra Fizjoterapii Zakład Kinezyterapii i Masażu Leczniczego, UMK w Toruniu CM im. L. Rydygiera w Bydgoszczy, ul. Techników 3 85 - 810 Bydgoszcz, [email protected] Anna Srokowska, Katedra i Zakład Podstaw Kultury Fizycznej, UMK w Toruniu CM im. L. Rydygiera w Bydgoszczy, ul. Świętojańska 20, 85 - 077 Bydgoszcz, [email protected]  StreszczenieWstęp: W świecie dynamicznego rozwoju techniki i nauki, z których człowiek czerpie wiele korzyści, łatwo jest spotkać na drodze przeszkody, które są zagrożeniem dla naszego zdrowia oraz prawidłowego funkcjonowania.Cel pracy: Istotnym problemem badawczym jest wpływ poszczególnych zabiegów fizykalnych na konkretną grupę mięśniową. Dzięki badaniom za pomocą EMG możemy skutecznie ocenić skutki terapii po zastosowaniu prądów TENS średniej częstotliwości. Celem pracy była analiza  z wykorzystaniem EMG, wpływu prądów TENS średniej częstotliwości na czynność bioelektryczną mięśni prostowników nadgarstka. Wyniki badań własnych: Szczegółowe wyniki przeprowadzonych badań przedstawiono w tabelach i zilustrowano wykresami.Materiał i metoda: W badaniach uczestniczyło 19 osób, które nie zgłosiły większych dolegliwości ze strony badanej grupy mięśniowej. W grupie badawczej uczestniczy zarówno kobiety jak i mężczyźni. Głównym narzędziem badawczym, które pozwoliło na analizę badań był pomiar za pomocą EMG,  gdzie została oceniona czynność bioelektryczna (rónica potencjałów) mięśni w spoczynku, podczas skurczu koncentrycznego w ruchu zgięcia grzbietowego nadgarstka oraz wykonanie próby maksymalnego skurczu dowolnego MVC. Analiza zapisu EMG mięśnia prostownika promieniowego nadgarstka oraz prostownika łokciowego nadgarstka wykazała spadek częstotliwości wyładowań bioelektrycznych mięśnia pod wpływem działania prądów TENS średniej częstotliwości.Wnioski1. Analiza zapisu EMG mięśnia prostownika promieniowego nadgarstka oraz prostownika łokciowego nadgarstka wykazała spadek częstotliwości wyładowań bioelektrycznych mięśnia pod wpływem działania prądów TENS średniej częstotliwości. Badanie to pozwala na obiektywne udokumentowani aktywności mięśni zaangażowanych w ruch podczas czynności funkcjonalnych.2. Kinezjologiczne EMG pozwala na szybką i skuteczną możliwość weryfikacji działania prądów TENS podczas postępowania rehabilitacyjnego, jest skuteczną metodą terapeutyczną. Słowa klucze: elektrostymulacja, TENS, EMG.  AbstractIntroduction: In the world with dynamic progress in technology and science where human is taking a lot benefits. Its easy to meet on our way obstacles which are dangerous for our health and proper functioning of the body.The aim of the study: Main problem of research is influence invidual physical treatments on specific group of muscles. Because of surveys where we are using EMG we can successfully judge effects of therapy after we used currents TENS with midium frequency. Purpose of my thesis was analysis influence of currents TENS with midium frequency on bioelectric function of muscles rectifiers wrist.Material and methods: In reasearch took part 19 people, which didn't say anything about disorder with tested group of musles. In this group took part women and mans. The main instrument which allowed for analysis researches was survey with help EMG where we valued bioelectric function (potentials difference) not active muscles during concentrix contraction astir tergal flexion of wrist and make test of maximum any contraction - MVC. Analysis of record sEMG muscle rectifier radial of wrist and muscle rectifier cubital of wrist showed decrease in frequency bioelectric dischargers of muscle because of work currents TENS with midium frequency.Results of the study: The detailed results of the study are presented in tables and illustrated on the graphsConclusions:1. Analysis of the ECG radial wrist extensor muscle and ulnaris showed a decrease in firing rate of bioelectric muscle under the influence of currents of medium frequency TENS. This study allows for an objective document activity involved in muscle movement during functional activities.2. Kinesiology EMG allows for quick and effective action possible to verify TENS currents during the rehabilitation procedure, it is an effective therapeutic method. Key words: electrostimulation, TENS, EMG

The effect of protozoa on the bacterial composition and hydrolytic activity of the roe deer rumen.

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. The purpose of this study was to compare the effect of the presence of protozoa in the rumen of wild roe deer (Capreolus capreolus) on the bacteria composition and digestion rate of the main carbohydrates of forage. The research material involved rumen content and rumen fluid, which were collected in the autumn-winter season, from eight adult males of roe deer with an average body mass of 22.6 kg. The microscopic analysis demonstrated that there were only protozoa in 50% of the animals sampled. Qualitative analysis revealed the presence of protozoa belonging to the genus Entodinium. The density of protozoal population varied from 6.5 to 38.7 × 105/mL rumen fluid. The analysis of bacteria composition indicated that protozoa did not have an effect on bacterial diversity. Furthermore, the results of hydrolytic activity revealed that the fastest digestion of carbohydrates was for pectin, while the slowest was inulin. The pH and redox potential in the rumen varied from 5.9 to 6.1 and from −248.1 to −251.1 mV, respectively. In summary, the presence of protozoa in the rumen of wild roe deer does not have an effect on the bacterial population and has no effect on the digestion rate of carbohydrates in the rumen