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2452. Laboratory examination in nerve agent intoxication
- Creator:
- Bajgar, Jiří
- Format:
- print, text, and regular print
- Type:
- model:article, article, Text, časopisecké články, práce podpořená grantem, přehledy, and TEXT
- Subject:
- chemické bojové látky--chemie--farmakologie--otrava, cholinesterasy--metabolismus, klinické laboratorní techniky, lidé, and otrava organofosfáty--diagnóza
- Language:
- English
- Description:
- Diagnosis of nerve agent intoxication is based on anamnestic data, clinical signs and laboratory examination. For acute poisoning, cholinesterase activity in the blood (erythrocyte AChE, plasma/serum BuChE) is sensitive, simple and most frequent laboratory examination performed in biochemical laboratories. Specialized examinations to precise treatment (reactivation test) or to make retrospective diagnosis (fluoride induced reactivation etc.) can be conducted. Other sophisticated methods are available, too. and J. Bajgar
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2453. Laboratory rearing of Sycanus annulicornis (Hemiptera: Reduviidae) on two species of prey: Differences in its biology and efficiency as a predator of the nettle caterpillar pest Setothosea asigna (Lepidoptera: Limacodidae)
- Creator:
- Sahid, Abdul, Natawigena, Wahyu D, Hersanti, and Sudarjat
- Format:
- print, počítač, and online zdroj
- Type:
- model:article and TEXT
- Subject:
- polokřídlí, zákeřnicovití, motýli, Hemiptera, Reduviidae, butterflies, Sycanus annulicornis, Lepidoptera, Limacodidae, Setothosea asigna, laboratory rearing, Crocidolomia pavonana, Tenebrio molitor, different prey diets, biological parameters, predatory ability, 2, and 59
- Language:
- English
- Description:
- Setothosea asigna van Eecke is a dominant defoliator pest in oil palm plantations. To control this pest, a generalist predatory bug, Sycanus annulicornis Dohrn, was used as it is easy to rear on several different species of prey. In this study, we evaluated the influence of different prey on the biology and the ability of S. annulicornis to attack and kill the nettle caterpillar pest S. asigna. Based on laboratory rearing, the larvae of Crocidolomia pavonana F. (Lepidoptera: Crambidae) is a suitable prey for both the growth and development of S. annulicornis, as its nymphal development is shorter (74.0 ± 7.3 days) and adult longevity longer (81.0 ± 9.0 days for male and 64.8 ± 12.4 days for female, respectively) than when reared on the larvae of Tenebrio molitor L. (Coleoptera: Tenebrionidae) (44.0 ± 16.7 days for male and 52.6 ± 14.4 days for female). However, S. annulicornis reared on T. molitor larvae attacked 2.0-2.2 larvae of S. asigna per day, which is more than the 1.6-1.7 larvae per day of those reared on C. pavonana, which indicates that the larvae of T. molitor are a more effective diet for rearing S. annulicornis as biocontrol agent for the S. asigna., Abdul Sahid, Wahyu D. Natawigena, Hersanti, Sudarjat., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2454. Lack of the effect of superoxide dismutase and catalase on Na+,K+-ATPase activity in stunned rabbit hearts
- Creator:
- Peter Kaplán, Milena Matejovičová, Herijgers, P., and Flameng, W.
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Experimentální medicína, kardiovaskulární fyziologie, volné radikály, cardiovascular physiology, free radicals, sodium pump, stunning, reperfusion, superoxide dismutase, catalase, 14, and 616-092
- Language:
- English
- Description:
- Reactive oxygen species (ROS) have been implicated in the mechanism of postischemic contractile dysfunction, known as myocardial stunning. In this study, we examined protective effects of antioxidant enzymes, superoxide dismutase (SOD) and catalase, against ischemia/reperfusion-induced cardiac dysfunction and inhibition of Na+,K+-ATPase activity. Isolated Langendorff-perfused rabbit hearts were subjected to 15 min of global normothermic ischemia followed by 10 min reperfusion. The hearts treated with SOD plus catalase did not show significant recovery of left ventricular (LV) end-diastolic pressure compared with untreated ischemic reperfused hearts. Treatment with antioxidants had no protective effects on developed LV pressure or its maximal positive and negative first derivatives (±LVdP/dt). Myocardial stunning was accompanied by significant loss in sarcolemmal Na+,K+-ATPase activity and thiol group content. Inhibition of enzyme activity and oxidation of SH groups were not prevented by antioxidant enzymes. These results suggest that administration of SOD and catalase in perfusate do not protect significantly against cardiac dysfunction in stunned rabbit myocardium., P. Kaplán, M. Matejovičová, P. Herijgers, W. Flameng., and Obsahuje bibliografii a bibliografické odkazy
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2455. Lactate dehydrogenase activity in human placenta following exposure to environmental pollutants
- Creator:
- Kaiglová, A., Eva Reichrtová, Adamčáková, A., and Wsólová, L.
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, placenta, human placenta, lactate dehydrogenase, environmental pollutants, 14, and 612
- Language:
- English
- Description:
- The impact of environmental pollution at the place of residence of pregnant women and of their smoking habits on the cellular energy metabolism of placental tissue was investigated. Samples of full-term placentas were randomly collected from two environmentally different regions of Slovakia (Bratislava, Stará Ľubovňa) and the activity of lactate dehydrogenase (LDH) was measured. Our results showed enhanced LDH activity in the placenta that was dependent on both the type of environmental pollutants at the place of residence and the smoking habits during pregnancy. The enhanced LDH activity may reflect hypoxic conditions due to the accumulation of heavy metals and toxic compounds of tobacco smoke in the placental tissue. A high content of heavy metal particles, found in placental samples from Stará Ľubovňa in our previous studies, might contribute to the increased LDH activity in placentas from this region. We hypothesize that fine metal particles deposited in the placental tissue might be phagocytozed by the syncytiotrophoblast, thus contributing to the decreased oxygen level in placental tissue., A. Kaiglová, E. Reichrtová, A. Adamčáková, L. Wsólová., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2456. Landmark and outline-based geometric morphometrics analysis of three Stomoxys flies (Diptera: Muscidae)
- Creator:
- Changbunjong, Tanasak, Sumruayphol, Suchada, Weluwanarak, Thekhawet, Ruangsittichai, Jiraporn, and Dujardin, Jean-Pierre
- Format:
- print, počítač, and online zdroj
- Type:
- model:article and TEXT
- Subject:
- muscidae, landmarks, outlines, Stomoxys pullus, Stomoxys uruma, Stomoxys indicus, 2, and 59
- Language:
- English
- Description:
- Adult flies of the genus Stomoxys Geoffroy, 1762 (Diptera: Muscidae), especially S. pullus Austen, 1909, S. uruma Shinonaga et Kano, 1966 and S. indicus Picard, 1908, are morphologically similar and sometimes difficult to distinguish when using external morphological characteristics. These species may act as vectors and/or potential vectors of many pathogens (virus, bacteria and protozoa). Their correct identification is important to target the vectors involved in the transmission of the pathogens and also helps in the fly control program.The aim of the present study was to distinguish three species which are difficult to separate using traditional diagnostic characters for species of Stomoxys such as colour patterns and body proportions. Modern morphometrics, both landmark and outline-based, was used to access wing geometry of S. pullus, S. uruma and S. indicus. A total of 198 and 190 wing pictures were analysed for landmark- and outline-based approaches, respectively. Wing shape was able to separate species and sexes of the three Stomoxys flies with highly significant difference of Mahalanobis distances. The cross-validated classification scores ranged from 76% to 100% for landmark and 77% to 96% for outline-based morphometrics. The geometry of wing features appears to be a very useful, low-cost tool to distinguish among the vectors S. pullus, S. uruma and S. indicus. and Tanasak Changbunjong, Suchada Sumruayphol, Thekhawet Weluwanarak, Jiraporn Ruangsittichai, Jean-Pierre Dujardin.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2457. Landslide susceptibility assessment in urbanized areas: example from flysch Carpathians, Czech Republic
- Creator:
- Jan Klimeš and Novotný, Roman
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Geologie. Meteorologie. Klimatologie, sesuvy půdy, rozvoj měst, landslides, urban development, Česko, Czechia, landslide susceptibility assessment, multi-variety statistical analysis, flysh highlands, 7, and 551
- Language:
- English
- Description:
- The ongoing development of landslide prone regions increases future potential losses caused by landslide occurrence. The first step towards landslide mitigation on a regional scale is a susceptibility assessment. This study focuses on the area surrounding the regional capital of Zlín, in the Outer Western Carpathians. The city is located in the flysch highlands. Statistical analysis of the distribution of landslide scarps was undertaken in relation to various preparatory factors (geology, slope angle, slope aspect, slope curvature, distance from closest stream). This analysis provided insights into the main initiating factors and allowed our results to be compared with other studies in similar regions. Thereafter, a regional landslide susceptibility assessment was undertaken. The model performance was evaluated with respect to the landslide information used during its preparation and with a separate validation dataset. The results show that the main predisposing factors are the claystone rich bedrock unit, thick accumulations of slope sediments, and slope angles between 10° and 15°. The possible application of the presented results for urban planning purposes is also outlined., Jan Klimeš and Roman Novotný., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2458. Landslides mapping in Roznow Lake vicinity, Poland using airborne laser scanning data
- Creator:
- Borkowski, Andrzej, Perski, Zbigniew, Wojciechowski, Tomasz, Jóźków, Grzegorz, and Wójcik, Antoni
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Geologie. Meteorologie. Klimatologie, letecké laserové skenování, sesuvy půdy, airborne laser scanning, landslides, Karpaty (pohoří), Carpathian Mountains, landslides mapping, 7, and 551
- Language:
- English
- Description:
- Southern Poland, especially Polish Carpathians, is a region affected by strong mass-movements. The importance of massmovements problems has been taken into consideration on the governmental level and Landslide Counteracting System (SOPO) program was launched in 2008. The main purpose of this program is to create inventory and map all active and inactive landslides and landslide prone areas in Poland. However, in case of such gigantic work, the traditional mapping methods meet sometimes their limitations. In order to overcome some of efficiency problems the new technology, the application of airborne laser scanning was tested. The main purpose of presented work is to test whether the LiDAR DTM is capable to support geological interpretation and landslide detection on steep and forested slopes for the purposes of landslide mapping within SOPO project. For this purpose the ALS dataset covering 40 km2 of the area near Roznow Lake in Polish Carpathians have been acquired in April 2010. The average scanning resolution was 7 points/m2 and LiteMapper 6800i system based on the full waveform, Riegl LMS-Q680i scanner have been used. Acquired point cloud was applied to generate DTM of 0.5 m resolution. For efficiency test purposes the detailed geological interpretation of constructed ALS DTM was focused on already well mapped large Zbyszyce landslide. The extents of the landslide and the zones of different level of activity have been mapped and then verified with field data. During the detailed analysis it was found that the level of the details of ALS DTM allows also performing morphometric analysis on landslides., Andrzej Borokowski, Zbigniew Perski, Tomasz Wojciechowski, Grzegorz Jóźków and Antoni Wójcik., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2459. L´anniversaire important du professeur PhDr. Jan Šabršula, DrSc.
- Creator:
- Stavinohová, Zdeňka
- Format:
- Type:
- model:internalpart and TEXT
- Language:
- English
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2460. Lanthanide tetrad effect in limestone: a tool to environment analysis of the ruteh formation, NW Iran
- Creator:
- Abedini, Ali, Rezaei Azizi, Mansour, and Calagari, Ali Asghar
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- vápenec, limestones, Írán, Iran, REE, tetrad effect, chemical environment analysis, 7, and 551
- Language:
- English
- Description:
- Exhibition of lanthanide tetrad effect in PAAS-normalized REE patterns, and non-CHARAC (non-CHArge-RAdius Control) behavior of Y/Ho and Zr/Hf in limestone of the Ruteh Formation, Kanigorgeh district (NW Iran), were studied in order to understand the reasons of occurrence of lanthanides tetrad effects. The computed values show that the third and fourth tetrads can be used as a good and powerful geochemical tool for investigation of physicochemical conditions of the depositional environment of the limestones. Here, a new mathematical-based method using polar coordination system for tetrad effect values (Tp) was used to evaluate under studying limestone. The correlation between Tp and some geochemical parameters revealed that the limestone was likely deposited under two different conditions. The obtained results indicated that paleo-redox conditions, adsorption and scavenging by kaolinite and metallic oxides, degree of detrital input, diagenesis intensity, and complexation by polycarbonate ligands are likely the main mechanisms for occurrence of tetrad effect phenomenon in REE distribution patterns in the limestone. This means that tetrad effect phenomenon in REE distribution patterns of limestone can be applied as a good geochemical indicator to evaluate the deposition conditions in limestones., Ali Abedini, Mansour Rezaei Azizi and Ali Asghar Calagari., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public