479 research outputs found
Barier-free use of SŠSaD Ostrava-Zábřeh – part 3
Import 04/07/2011Tato bakalářská práce se zabývá odstraňováním bariér a principy přístupnosti ve stavbách občanské vybavenosti, konkrétně pak problematikou bezbariérového užívání staveb v areálu Střední školy stavební a dřevozpracující, příspěvkové organizace, se sídlem v Ostravě-Zábřehu, U Studia 33, kde řeší odstranění bariér v budově internátu, kulturním sále, pavilonu stravování, hlavní vrátnici, zdravotnickém zařízení a spojovacím vestibulu, vedoucím do budov teoretického vyučování. Navržené úpravy jsou provedeny v souladu s principy přístupného prostředí pro každého člověka. Nedílnou součástí bakalářské práce je část výkresová a stručné ekonomické zhodnocení návrhů.This Bachelor’s thesis is concerned with barriers removing and accessibility principles in the buidings of civic amenities, specifically the issue of barrier-free use of buildings in the Building and Woodworking High School complex, allowance organization, located in Ostrava-Zábřeh, U Studia 33, which covers the barriers removal in the dormitory building, the cultural hall, the dining hall, the main reception desk, the medical facility and the connecting vestibule leading to the buildings of theoretical classes. The proposed amendments are made in accordance with the principles of an accessible environment for everyone. An integral part of this thesis is a drawing part and a brief economic assessment of proposals.Prezenční222 - Katedra městského inženýrstvívýborn
Trilobite assemblage of Calceola-bearing beds in Acanthopyge Limestone (Choteč formation, middle Devonian, Eifelian, Prague Basin, the Czech republic)
The trilobite assemblage of Calceola-bearing beds in the upper part of Acanthopyge Limestone (Choteč Formation, Eifelian) in the Koněprusy area, the Czech Republic, is described. Together with occurrence of Calceola, it indicates absence of significant palaeogeographic barriers restricting the distribution of the Rhenish-Type faunas in the Middle Devonian. The generic composition of the gathered trilobite assemblage somewhat differs from typical Acanthopyge-Phaetonellus assemblage characteristic for the Acanthopyge Limestone facies in possible absence and/or very rare occurrence of Phaetonellus, and only infrequent occurrence of Acanthopyge. Phacopid Chotecops cf. hoseri (Hawle et Corda, 1847) distinctly dominates; all other taxa are rather rare. Important is an occurrence of scutelluids of the Scutellum sensu lato group (preservation of remains does not enable more precise determination) and Longiproetus(?). Trilobite remnants are generally poorly preserved and very fragmented (only minute shields are not affected), which support a high-dynamic, shallow-water original environment
Whole Body Vibrations during Fully Mechanised Logging
This paper seeks to answer the question of whether the magnitude of vibrations affecting the whole body of the harvester operator (WBV) that are generated by the harvester boom is affected by the size of the processed trunk volume, to specify closer, the magnitude of WBVs generated during forest logging, and to localise these WBVs in individual partial operations. For these purposes, the production process, i.e., forest logging, was divided into six partial operations (Searching; Felling; Processing; Unproductive time; Machine movement; Stationary position). WBVs were scanned in the respective partial operations according to standard ISO 2631-1:1997 and the European Directive 2002/44/EC, and then the values were mutually compared. Volumes of processed trunks were recorded, which were then assigned to the given WBV during the respective operations. Research results did not demonstrate a correlation between the size of the transmitted vibrations and the volumes of cut trunks in the partial work operations of Felling and Processing. Neither a difference was found between the individual partial operations with two exceptions: Searching and Felling/Processing and Unproductive time. The research further showed that the average WBV of three partial operations did not meet the daily limit of 0.50 m/s2 permitted by European Directive 2002/44/EC, within a range from 12.20% to 27.02%.O
Kinematic analysis of handwriting movements in patients with Alzheimer's disease, mild cognitive impairment, depression and healthy subjects
A variety of studies have demonstrated that motor disorders, parkinsonism and extrapyramidal motor symptoms (EPMS) are common in patients with Alzheimer's disease (AD). Several studies have reported an association of EPMS with severity, progression and poor prognosis of AD. The majority of these studies used clinical assessments for the rating of EPMS. In this study, kinematic handwriting analysis was used to quantify differences in fine hand motor function in patients with probable AD and mild cognitive impairment (MCl, as an assumed initial stage of AD) compared to depressed patients and healthy controls. Both patients with MCl and patients with probable AD exhibited loss of fine motor performance. Movements of AD patients were significantly less regular than those of healthy controls. Copyright (C) 2003 S. Karger AG, Basel
Facial expressions and personality: A kinematical investigation during an emotion induction experiment
Background/Aims: In order to elucidate the relationship between personality traits and expression of positive emotions in healthy volunteers, standardized personality inventories and kinematical analysis of facial expressions can be helpful and were applied in the present study. Methods: Markers fixed at distinct points of the face emitting ultrasonic signals at high frequency gave a direct measure of facial movements with high spatial-temporal resolution. Forty-six healthy participants (mean age: 40.7 years; 20 males, 26 females) watching a witty movie ('Mr. Bean') were investigated. Results: Speed of `laughing' was associated with higher scores on Zuckerman's Sensation Seeking Scale and NEO-FFI (Openness to Experience). Conclusion: Kinematical analysis of facial expressions seems to reflect sensation seeking and related personality styles. Higher speed of facial movements in sensation seekers suggests lowered serotonergic function. Copyright (c) 2006 S. Karger AG, Basel
Are Treatment Preferences Relevant in Response to Serotonergic Antidepressants and Cognitive-Behavioral Therapy in Depressed Primary Care Patients? Results from a Randomized Controlled Trial Including a Patients' Choice Arm
Background Little is known about the influence of depressed patients' preferences and expectations about treatments upon treatment outcome We investigated whether better clinical outcome in depressed primary care patients is associated with receiving their preferred treatment Methods Within a randomized placebo-controlled single-centre 10-week trial with 5 arms (sertraline, placebo, cognitive-behavioral group therapy, CBT-G, moderated self-help group control, treatment with sertraline or CBT-G according to patients' choice), outcomes for 145 primary care patients with mild-to-moderate depressive disorders according to DSM-IV criteria were investigated Preference for medication versus psychotherapy was assessed at screening using a single item Post-baseline difference scores for the Hamilton Depression Rating Scale (HAMD-17) were used to assess treatment outcome (mixed-model repeated-measures regression analysis) Results Depressed patients receiving their preferred treatment (n = 63), whether sertraline or CBT-G, responded significantly better than those who did not receive their preferred therapy (n = 54, p = 0 001) The difference in outcome between both groups was 8 0 points on the HAMD-17 for psychotherapy and 2 9 points on the HAMD-17 for treatment with antidepressants Results were not explained by differences in depression severity or dropout rates Conclusions Patients' relative preference for medication versus psychotherapy should be considered when offering a treatment because receiving the preferred treatment conveys an additional and clinically relevant benefit (HAMD-17 +2 9 points for drugs, +8 0 points for CBT-G) in outcome Copyright (C) 2010 S Karger AG Base
Živočichové v aerofytickém mechu
Aerofytický mech je snadno dostupným materiálem pro praktická cvičení téměř kdekoliv a v kteroukoliv roční robu. Lze v něm demonstrovat několik skupin mikroskopických živočichů pomocí běžné mikroskopické techniky.Tento material vznikl z finanční podpory Evropského sociálního fondu a státního rozpočtu České republiky v rámci projektu „Popularizace vědy a badatelsky orientované výuky“, registrační číslo CZ.1.07/2.3.00/45.0007
Transmission of West Nile virus in the Niagara Region among a population at risk for exposure
Background. West Nile Virus (WNV), a mosquito-borne flavivirus, is one of an
increasing number of infectious diseases that have been emerging or re-emerging in the
last two decades. Since the arrival ofWNV to Canada to present date, the Niagara Region
has only reported 30 clinical cases, a small number compared to the hundreds reported in
other regions of similar conditions. Moreover, the last reported human case in Niagara
was in 2006. As it has been demonstrated that the majority of WNV infections are
asymptomatic, the question remains whether the lack of clinical cases in Niagara truly
reflects the lack of transmission to humans or if infections are still occurring but are
mostly asymptomatic.
Objectives. The general objective of this study was to establish whether or not active
WNV transmission could be detected in a human population residing in Niagara for the
2007 transmission season. To fullfil this objective, a cross-sectional seroprevalence study
was designed to investigate for the presence of anti-WNV antibodies in a sample of
Mexican migrant agricultural workers employed in farms registered with the Seasonal
Agricultural Workers Program (SAWP). Due to the Mexican origin of the study
participants, three specific research objectives were proposed: a) determine the
seroprevalence ofanti-WNV antibodies as well as anti-Dengue virus antibodies (a closely
related virus prevalent in Mexico and likely to confound WNV serology); b) analyze risk
factors associated with WNV and Dengue virus seropositivity; and c) assess the
awareness of study participants about WNV infection as well as their understanding of
the mode of transmission and clinical importance of the infection. Methodology: After obtaining ethics clearance from Brock University, farms were
visited and workers invited to participate. Due to time constraints, only a small number of
farms were enrolled with a resulting convenience and non-randomized study sample.
Workers' demographic and epidemiological data were collected using a standardized
questionnaire and blood samples were drawn to determine serum anti-WNV and anti-
Dengue antibodies with a commercial ELISA. All positive samples were sent to the
National Microbiology Laboratory in Winnipeg, Manitoba for confirmation with the
Plaque Reduction Neutralization Test (PRNT). Data was analyzed with Stata 10.0.
Antibody determinations were reported as seroprevalence proportions for both WNV and
Dengue. Logistic regression was used to analyze risk factors that may be associated with
seropositivity and awareness was reported as a proportion of the number of individuals
possessing awareness over the total number of participants.
Results and Discussion. In total 92 participants working in 5 farms completed the study.
Using the commercial ELISA, seropositivity was as follows: 2.2% for WNV IgM, 20.7%
for WNV IgG, and 17.1 % for Dengue IgG. Possible cross-reactivity was demonstrated in
15/20 (75.0%) samples that were positive for both WNV IgG and Dengue IgG.
Confirmatory testing with the PRNT demonstrated that none of the WNV ELISA positive
samples had antibodies to WNV but 13 samples tested positive for anti-Dengue
antibodies (14.1 % Dengue sereoprevalence). The findings showed that the ELISA
performance was very poor for assessing anti-WNV antibodies in individuals previously
exposed to Dengue virus. However, the ELISA had better sensitivity and specificity for
assessing anti-Dengue antibodies. Whereas statistical analysis could not be done for WNV seropositivity, as all samples
were PRNT negative, logistic regression demonstrated several risk factors for Dengue
exposure_ The first year coming to Canada appeared to be significantly associated with
increased exposure to Dengue while lower socio-economic housing and the presence of a
water basin in the yard in Mexico appeared to be significantly associated with a
decreased exposure to Dengue_ These seemingly contradictory results illustrate that in
mobile populations such as migrant workers, risk factors for exposure to Dengue are not
easily identified and more research is needed. Assessing the awareness of WNV and its
clinical importance showed that only 23% of participants had some knowledge of WNV,
of which 76% knew that the infection was mosquito-borne and 47% recognized fever as a
symptom. The identified lack of understanding and awareness was not surprising since
WNV is not a visible disease in Mexico. Since WNV persists in an enzootic cycle in
Niagara and the occurrence of future outbreaks is unpredictable, the agricultural workers
remain at risk for transmission. Therefore it important they receive sufficient health
education regarding WNV before leaving Mexico and during their stay in Canada.
Conclusions. Human transmission of WNV could not be proven among the study
participants even when due to their occupation they are at high risk for mosquito bites.
The limitations of the study sample do not permit generalizable conclusions, however, the
study findings are consistent with the absence of clinical cases in the Niagara Region, so
it is likely that human transmission is indeed neglible or absent. As evidenced by our
WNV serology results, PRNT must be utilized as a confirmatory test since false positivity
occurs frequently. This is especially true when previous exposure to Dengue virus is
likely.Background. West Nile Virus (WNV), a mosquito-borne flavivirus, is one of an
increasing number of infectious diseases that have been emerging or re-emerging in the
last two decades. Since the arrival ofWNV to Canada to present date, the Niagara Region
has only reported 30 clinical cases, a small number compared to the hundreds reported in
other regions of similar conditions. Moreover, the last reported human case in Niagara
was in 2006. As it has been demonstrated that the majority of WNV infections are
asymptomatic, the question remains whether the lack of clinical cases in Niagara truly
reflects the lack of transmission to humans or if infections are still occurring but are
mostly asymptomatic.
Objectives. The general objective of this study was to establish whether or not active
WNV transmission could be detected in a human population residing in Niagara for the
2007 transmission season. To fullfil this objective, a cross-sectional seroprevalence study
was designed to investigate for the presence of anti-WNV antibodies in a sample of
Mexican migrant agricultural workers employed in farms registered with the Seasonal
Agricultural Workers Program (SAWP). Due to the Mexican origin of the study
participants, three specific research objectives were proposed: a) determine the
seroprevalence ofanti-WNV antibodies as well as anti-Dengue virus antibodies (a closely
related virus prevalent in Mexico and likely to confound WNV serology); b) analyze risk
factors associated with WNV and Dengue virus seropositivity; and c) assess the
awareness of study participants about WNV infection as well as their understanding of
the mode of transmission and clinical importance of the infection.
Methodology: After obtaining ethics clearance from Brock University, farms were
visited and workers invited to participate. Due to time constraints, only a small number of
farms were enrolled with a resulting convenience and non-randomized study sample.
Workers' demographic and epidemiological data were collected using a standardized
questionnaire and blood samples were drawn to determine serum anti-WNV and anti-
Dengue antibodies with a commercial ELISA. All positive samples were sent to the
National Microbiology Laboratory in Winnipeg, Manitoba for confirmation with the
Plaque Reduction Neutralization Test (PRNT). Data was analyzed with Stata 10.0.
Antibody determinations were reported as seroprevalence proportions for both WNV and
Dengue. Logistic regression was used to analyze risk factors that may be associated with
seropositivity and awareness was reported as a proportion of the number of individuals
possessing awareness over the total number of participants.
Results and Discussion. In total 92 participants working in 5 farms completed the study.
Using the commercial ELISA, seropositivity was as follows: 2.2% for WNV IgM, 20.7%
for WNV IgG, and 17.1 % for Dengue IgG. Possible cross-reactivity was demonstrated in
15/20 (75.0%) samples that were positive for both WNV IgG and Dengue IgG.
Confirmatory testing with the PRNT demonstrated that none of the WNV ELISA positive
samples had antibodies to WNV but 13 samples tested positive for anti-Dengue
antibodies (14.1 % Dengue sereoprevalence). The findings showed that the ELISA
performance was very poor for assessing anti-WNV antibodies in individuals previously
exposed to Dengue virus. However, the ELISA had better sensitivity and specificity for
assessing anti-Dengue antibodies.
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West Nile Virus in the Niagara Region
Whereas statistical analysis could not be done for WNV seropositivity, as all samples
were PRNT negative, logistic regression demonstrated several risk factors for Dengue
exposure_ The first year coming to Canada appeared to be significantly associated with
increased exposure to Dengue while lower socio-economic housing and the presence of a
water basin in the yard in Mexico appeared to be significantly associated with a
decreased exposure to Dengue_ These seemingly contradictory results illustrate that in
mobile populations such as migrant workers, risk factors for exposure to Dengue are not
easily identified and more research is needed. Assessing the awareness of WNV and its
clinical importance showed that only 23% of participants had some knowledge of WNV,
of which 76% knew that the infection was mosquito-borne and 47% recognized fever as a
symptom. The identified lack of understanding and awareness was not surprising since
WNV is not a visible disease in Mexico. Since WNV persists in an enzootic cycle in
Niagara and the occurrence of future outbreaks is unpredictable, the agricultural workers
remain at risk for transmission. Therefore it important they receive sufficient health
education regarding WNV before leaving Mexico and during their stay in Canada.
Conclusions. Human transmission of WNV could not be proven among the study
participants even when due to their occupation they are at high risk for mosquito bites.
The limitations of the study sample do not permit generalizable conclusions, however, the
study findings are consistent with the absence of clinical cases in the Niagara Region, so
it is likely that human transmission is indeed neglible or absent. As evidenced by our
WNV serology results, PRNT must be utilized as a confirmatory test since false positivity
occurs frequently. This is especially true when previous exposure to Dengue virus is
likely
Hálky jako příklad ekologických vztahů mezi živočichem a rostlinou
Hálky jsou výborným badatelským objektem pro ekologicky zaměřenou exkurzi i laboratorní praktikum. Jsou klasickým případem interakce dvou zcela rozdílných organismů.Hálky se často vyskytují na oslabených stromech na chudé půdě, při okrajích parků a ekotonech, např. okrajích pasek. Jsou snadno dostupným biologickým objektem. Při exkurzi pozorně prohlížíme spodní stranu listů. Nejlepšími stromy s nápadnými hálkami jsou na našem území duby. Pěkné hálky nalezneme i na lipách, javorech a bucích. Na keřích jsou nejčastěji hálky přítomny na růži šípkové. Přítomnost nebo nepřítomnost hálek záleží na mnoha faktorech. Proto v některých letech na stejném místě nalezneme četné hálky, i více jejich druhů, zatímco z jiných letech na hálky téměř nenarazíme. Přítomnost hálek souvisí i s dvouletými cykly některých skupin žlabatek.Tento material vznikl z finanční podpory Evropského sociálního fondu a státního rozpočtu České republiky v rámci projektu „Popularizace vědy a badatelsky orientované výuky“, registrační číslo CZ.1.07/2.3.00/45.0007
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