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422. Long-term monitoring of the impact of mining operations on the ground surface at the regional scale based on the InSAR-SBAS technique, the Upper Silesian Coal Basin (Poland). Case study
- Creator:
- Kopeć, Anna, Bugajska, Natalia, Milczarek, Wojciech, and Głąbicki, Dariusz
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- InSAR, subsidence, regional scale monitoring, and Sentinel 1A/1B
- Language:
- English
- Description:
- Underground mining activity in the region of the Upper Silesian Coal Basin (USCB) results in ground displacements scattered on a large area. Both the locations and the velocities of the displacements depend on many factors, such as the current location of the mining front, the mining depth and system, as well as geological conditions. Although SAR interferometry techniques allow the monitoring of such ground displacements, in a regional scale (as is the case of the USCB) SAR images must be appropriately processed (from a number of frames and swaths), and this is the problem addressed in this article. The implementation of algorithms for analyzing time series allows observations of displacements in both time and space. The authors also analyze the influence of mining operations on the road infrastructure and mining waste heaps located in the area and investigate the potential for the monitoring of secondary influence (due to induced seismic tremors). As a result of these investigations, the article presents the quality of the InSAR-SBAS data and the potential for their employment in the measurements.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
423. Long-term soil water content dynamics under different land uses in a small agricultural catchment
- Creator:
- Horel, Ágota, Zsigmond, Tibor, Molnár, Sándor, Zagyva, Imre, and Bakacsi, Zsófia
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- forest, grassland, soil water regime, vineyard, and climate change
- Language:
- Slovak
- Description:
- Longer term monitoring of soil water content at a catchment scale is a key to understanding its dynamics, which can assist stakeholders in decision making processes, such as land use change or irrigation programs. Soil water monitoring in agriculturally dominated catchments can help in developing soil water retention measurements, for assessment of land use change, or adaptation of specific land management systems to climate change. The present study was carried out in the Pannonian region (Upper-Balaton, Hungary) on Cambisols and Calcisols between 2015 and 2021. Soil water content (SWC) dynamics were investigated under different land use types (vineyard, grassland, and forest) at three depths (15, 40, and 70 cm). The meteorological data show a continuous decrease in cumulative precipitation over time during the study with an average of 26% decrease observed between 2016 and 2020, while average air temperatures were similar for all the studied years. Corresponding to the lower precipitation amounts, a clear decrease in the average SWC was observed at all the land use sites, with 13.4%, 37.7%, and 29.3% lower average SWC for the grassland, forest, and vineyard sites, respectively, from 2016 to 2020 (measured at the 15 cm depth of the soil). Significant differences in SWC were observed between the annual and seasonal numbers within a given land use (p < 0.05). The lowest average SWC was observed at the grassland (11.7%) and the highest at the vineyard (28.3%). The data showed an increasing average soil temperature, with an average 6.3% higher value in 2020 compared to 2016. The grassland showed the highest (11.3 °C) and the forest soil the lowest (9.7 °C) average soil temperatures during the monitoring period. The grassland had the highest number of days with the SWC below the wilting point, while the forest had the highest number of days with the SWC optimal for the plants.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
424. Low-level laser therapy attenuates arthrogenic contracture induced by anterior cruciate ligament reconstruction surgery in rats
- Creator:
- Kaneguchi, Akinori, Ozawa, Junya, Minamimoto, Kengo, and Yamaoka, Kaoru
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- anterior cruciate ligament reconstruction, low-level laser therapy, joint contracture, inflammation, and arthrofibrosis
- Language:
- English
- Description:
- Therapeutic approaches to treat joint contracture after anterior cruciate ligament (ACL) reconstruction have not been established. Arthrofibrosis accompanied by joint inflammation following ACL reconstruction is a major cause of arthrogenic contracture. In this study, we examined whether antiinflammatory treatment using low-level laser therapy (LLLT) can prevent ACL reconstruction-induced arthrogenic contracture. Rats underwent ACL transection and reconstruction surgery in their right knees. Unoperated left knees were used as controls. After surgery, rats were reared with or without daily LLLT (wavelength: 830 nm; power output: 150 mW; power density: 5 W/cm2 ; for 120 s/day). We assessed the passive extension range of motion (ROM) after myotomy at one and two weeks post-surgery; the reduction in ROM represents the severity of arthrogenic contracture. ROM was markedly decreased by ACL reconstruction at both time points; however, LLLT partially attenuated the decrease in ROM. One week after ACL reconstruction, the gene expression of the proinflammatory cytokine interleukin-1β in the joint capsule was significantly upregulated, and this upregulation was significantly attenuated by LLLT. Fibrotic changes in the joint capsule, including upregulation of collagen type I and III genes, shortening of the synovium, and thickening were caused by ACL reconstruction and seen at both time points. LLLT attenuated these fibrotic changes as well. Our results indicate that LLLT after ACL reconstruction could attenuate the formation of arthrogenic contracture through inhibition of inflammation and fibrosis in the joint capsule. Thus, LLLT may become a novel therapeutic approach for ACL reconstructioninduced joint contracture.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
425. Manuál AcademicLex 1
- Creator:
- Cvrček, František
- Publisher:
- Ústav státu a práva AV ČR, v.v.i
- Format:
- electronic, electronic resource, remote, bez média, online zdroj, and 1 online zdroj (73 stran) : ilustrace.
- Type:
- model:monograph and TEXT
- Subject:
- Právo, Učební osnovy. Vyučovací předměty. Učebnice, právní informatika, právní informační systémy, legal informatics, legal information systems, AcademicLex, 34:007, [007+004]:34, (075.8), (0.034.2:08), 16, 22, 34, and 37.016
- Language:
- Czech
- Description:
- František Cvrček. and born digital
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
426. Mapping past, present and future dew and rain water resources for biocrust evolution in southern Africa
- Creator:
- Muselli, Marc and Beysens, Daniel
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- biocrust, dew and rain evolution, dew/rain ratio, dew/rain correlation, Southern Africa, and climate change
- Language:
- Slovak
- Description:
- Biocrust sustainability relies on dew and rain availability. A study of dew and rain resources in amplitude and frequency and their evolution is presented from year 2001 to 2020 in southern Africa (Namibia, Botswana, South Africa) where many biocrust sites have been identified. The evaluation of dew is made from a classical energy balance model using meteorological data collected in 18 stations, where are also collected rain data. One observes a strong correlation between the frequency of dew and rain and the corresponding amplitudes. There is a general tendency to see a decrease in dew yield and dew frequency with increasing distance from the oceans, located west, east and south, due to decreasing RH, with a relative minimum in the desert of Kalahari (Namibia). Rain amplitude and frequency decreases when going to west and north. Short-term dew/rain correlation shows that largest dew yields clearly occur during about three days after rainfall, particularly in the sites where humidity is less. The evolution in the period corresponds to a decrease of rain precipitations and frequency, chiefly after 2010, an effect which has been cyclic since now. The effect is more noticeable towards north. An increase of dew yield and frequency is observed, mainly in north and south-east. It results in an increase of the dew contribution with respect to rain, especially after 2010. As no drastic changes in the distribution of biomass of biocrusts have been reported in this period, it is likely that dew should compensate for the decrease in rain precipitation. Since the growth of biocrust is related to dew and rain amplitude and frequency, future evolution should be characterized by either the rain cycle or, due to global change, an acceleration of the present tendency, with more dew and less rainfalls.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
427. Markov stopping games with an absorbing state and total reward criterion
- Creator:
- Cavazos-Cadena, Rolando, Rodríguez-Gutiérrez, Luis, and Sánchez-Guillermo, Dulce María
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- hitting time, non-expansive operator, monotonicity property, fixed point, equilibrium equation, and bounded rewards
- Language:
- English
- Description:
- This work is concerned with discrete-time zero-sum games with Markov transitions on a denumerable space. At each decision time player II can stop the system paying a terminal reward to player I, or can let the system to continue its evolution. If the system is not halted, player I selects an action which affects the transitions and receives a running reward from player II. Assuming the existence of an absorbing state which is accessible from any other state, the performance of a pair of decision strategies is measured by the total expected reward criterion. In this context it is shown that the value function of the game is characterized by an equilibrium equation, and the existence of a Nash equilibrium is established.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
428. Materiálová, technická a ekonomická příprava restaurátorských zásahů na sochařských dílech a architektuře
- Creator:
- Slížková, Zuzana, Novotný, Jakub, Frankeová, Dita, and Drdácký, Miloš
- Publisher:
- Ústav teoretické a aplikované mechaniky AV ČR, v. v. i
- Format:
- electronic, electronic resource, remote, bez média, online zdroj, and 1 online zdroj (146 stran) : ilustrace (převážně barevné), tabulky (některé tištěné napříč).
- Type:
- model:monograph and TEXT
- Subject:
- Sochařství, keramika, porcelán, umělecké zpracování kovů, 21. století, sochy, architektonické památky, restaurování památek, stavební materiály, stavební technologie, restaurátorský průzkum, památková péče, statues, architectural monuments, antiquities restoration, building materials, building technology, restoration research, historic preservation, Česko, Czechia, 730.027.1, 72:904, 7.025.3/.4, 691, 69.05, 7.025.3/.4:001.891.5, 719, (437.3), (072), (048.8:082), (0.034.2:08), 21, and 73
- Language:
- Czech
- Description:
- Zuzana Slížková, Jakub Novotný, Dita Frankeová, editoři. and České resumé
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
429. Mating advantage of short-winged over long-winged adult males in the cricket Velarifictorus ornatus (Orthoptera: Gryllidae)
- Creator:
- Zhao, Lv-Quan, Chai, Huai-Lin, Wu, Hong-Jun, and Zhu, Dao-Hong
- Format:
- print, počítač, and online zdroj
- Type:
- article, články, journal articles, model:article, and TEXT
- Subject:
- Zoologie, rovnokřídlí, cvrčkovití, Orthoptera, Gryllidae, Velarifictorus ornatus, mating competition, sing song, trade-off, wing polymorphism, 2, and 59
- Language:
- English
- Description:
- The trade-off between flight capability and reproduction is well known in adult males of insects with wing dimorphism but the reproductive advantage of short-winged (SW) males over long-winged (LW) males appears to vary across insect taxa. In the present study, we determined the difference in the mating ability of SW and LW males of Velarifictorus ornatus (Orthoptera: Gryllidae) in order to evaluate whether the SW male morph has a reproductive advantage. We found that the choice of a mate depended on the female. Compared with LW males, SW males had an obvious mating advantage when both SW and LW males courted females simultaneously, and that dealation significantly enhanced the mating ability of LW males. Losing the ability to produce songs reduced the mating advantage of SW males, thereby indicating that the greater mating advantage of SW males was related to the attractiveness of the song. In addition, the difference in the mating ability of LW and SW males was not related to body size or age. These results indicate that SW males of V. ornatus have a mating advantage over their LW counterparts because their underdeveloped flight muscles allow them to devote more resources to reproduction., Lv-Quan Zhao, Huai-Lin Chai, Hong-Jun Wu, Dao-Hong ZhuU., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
430. Mating alters the rate of development of ovarioles in the ladybird, Propylea dissecta (Coleoptera: Coccinellidae)
- Creator:
- Shahid, Mhd, Siddiqui, Arshi, Omkar, and Mishra, Geetanjali
- Format:
- print, počítač, and online zdroj
- Type:
- article, články, journal articles, model:article, and TEXT
- Subject:
- Zoologie, brouci, slunéčkovití, věk, beetles, Coccinellidae, age, Coleoptera, Propylea dissecta, mating status, ovariole development, egg maturation, egg load, 2, and 59
- Language:
- English
- Description:
- The influence of female mating status on ovarian development of the ladybird, Propylea dissecta (Mulsant) (Coleoptera: Coccinellidae), was investigated under laboratory conditions. We assessed the extent to which ovariole development was affected by mating and for that we initially created a base line by observing age specific ovariole development. Results show that the number of follicles in each ovariole increased with the age of both virgin and mated females up to the age of 3 days, thereafter, no increase in number of follicles was recorded. Ovariole width also increased with age in both virgin and mated females up to 4 days, thereafter, no increase in ovariole width was recorded. The ovariole width of mated females was significantly greater than that of virgin females. Egg maturation and the egg load started to increase at the age of 8 days in virgin females. Thereafter, it increased with increase in female age. While in mated females, immature eggs were recorded in their ovarioles from the age of 1 to 2 days. In mated females, however, the increase in the number of mature eggs per ovariole and egg load started when they were 3 days old. Egg load continuously increased with increasing female age., Mhd Shahid, Arshi Siddiqui, Omkar, Geetanjali Mishra., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public