Showing papers by "Jan Długosz University published in 2013"
University of Pretoria1, Chiang Mai University2, University of Johannesburg3, University of the Free State4, Stellenbosch University5, North Carolina State University6, Mashhad University of Medical Sciences7, Curtin University8, University of Western Australia9, Mae Fah Luang University10, United States Forest Service11, University of Delaware12, University of Florida13, Agricultural Research Service14, Indiana University15, Aix-Marseille University16, University of Warsaw17, Jan Długosz University18, Instituto Antártico Argentino19, Spanish National Research Council20, University of the Republic21
TL;DR: Novel species of microfungi described in the present study include the following from South Africa: Camarosporium aloes, Phaeococcomyces aloes and Phoma aloes from Aloe, and D. psoraleae-pinnatae from Psoralea, Colletotrichum euphorbiae from Euphorbia, as well as three new species from Mexico.
Abstract: Novel species of microfungi described in the present study include the following from South Africa: Camarosporium aloes, Phaeococcomyces aloes and Phoma aloes from Aloe, C. psoraleae, Diaporthe psoraleae and D. psoraleae-pinnatae from Psoralea, Colletotrichum euphorbiae from Euphorbia, Coniothyrium prosopidis and Peyronellaea prosopidis from Prosopis, Diaporthe cassines from Cassine, D. diospyricola from Diospyros, Diaporthe maytenicola from Maytenus, Harknessia proteae from Protea, Neofusicoccum ursorum and N. cryptoaustrale from Eucalyptus, Ochrocladosporium adansoniae from Adansonia, Pilidium pseudoconcavum from Greyia radlkoferi, Stagonospora pseudopaludosa from Phragmites and Toxicocladosporium ficiniae from Ficinia. Several species were also described from Thailand, namely: Chaetopsina pini and C. pinicola from Pinus spp., Myrmecridium thailandicum from reed litter, Passalora pseudotithoniae from Tithonia, Pallidocercospora ventilago from Ventilago, Pyricularia bothriochloae from Bothriochloa and Sphaerulina rhododendricola from Rhododendron. Novelties from Spain include Cladophialophora multiseptata, Knufia tsunedae and Pleuroascus rectipilus from soil and Cyphellophora catalaunica from river sediments. Species from the USA include Bipolaris drechsleri from Microstegium, Calonectria blephiliae from Blephilia, Kellermania macrospora (epitype) and K. pseudoyuccigena from Yucca. Three new species are described from Mexico, namely Neophaeosphaeria agaves and K. agaves from Agave and Phytophthora ipomoeae from Ipomoea. Other African species include Calonectria mossambicensis from Eucalyptus (Mozambique), Harzia cameroonensis from an unknown creeper (Cameroon), Mastigosporella anisophylleae from Anisophyllea (Zambia) and Teratosphaeria terminaliae from Terminalia (Zimbabwe). Species from Europe include Auxarthron longisporum from forest soil (Portugal), Discosia pseudoartocreas from Tilia (Austria), Paraconiothyrium polonense and P. lycopodinum from Lycopodium (Poland) and Stachybotrys oleronensis from Iris (France). Two species of Chrysosporium are described from Antarctica, namely C. magnasporum and C. oceanitesii. Finally, Licea xanthospora is described from Australia, Hypochnicium huinayensis from Chile and Custingophora blanchettei from Uruguay. Novel genera of Ascomycetes include Neomycosphaerella from Pseudopentameris macrantha (South Africa), and Paramycosphaerella from Brachystegia sp. (Zimbabwe). Novel hyphomycete genera include Pseudocatenomycopsis from Rothmannia (Zambia), Neopseudocercospora from Terminalia (Zambia) and Neodeightoniella from Phragmites (South Africa), while Dimorphiopsis from Brachystegia (Zambia) represents a novel coelomycetous genus. Furthermore, Alanphillipsia is introduced as a new genus in the Botryosphaeriaceae with four species, A. aloes, A. aloeigena and A. aloetica from Aloe spp. and A. euphorbiae from Euphorbia sp. (South Africa). A new combination is also proposed for Brachysporium torulosum (Deightoniella black tip of banana) as Corynespora torulosa. Morphological and culture characteristics along with ITS DNA barcodes are provided for all taxa.
184 citations
TL;DR: The fundamental solution of the Cauchy problem for the time-fractional diffusion-wave equation, its maximum location, maximum value, and other important characteristics are investigated in detail.
Abstract: In this paper, the one-dimensional time-fractional diffusion-wave equation with the fractional derivative of order @a,1<@a<2, is revisited. This equation interpolates between the diffusion and the wave equations that behave quite differently regarding their response to a localized disturbance: whereas the diffusion equation describes a process, where a disturbance spreads infinitely fast, the propagation speed of the disturbance is a constant for the wave equation. For the time-fractional diffusion-wave equation, the propagation speed of a disturbance is infinite, but its fundamental solution possesses a maximum that disperses with a finite speed. In this paper, the fundamental solution of the Cauchy problem for the time-fractional diffusion-wave equation, its maximum location, maximum value, and other important characteristics are investigated in detail. To illustrate analytical formulas, results of numerical calculations and plots are presented. Numerical algorithms and programs used to produce plots are discussed.
68 citations
TL;DR: In this article, the results of three-dimensional modeling of fuel mixture preparation and combustion in spark ignition (SI) engine with sectional combustion chamber powered by liquefied fuel were compared with results obtained from the analysis of experimental measurements of two-stage combustion test engine operating at the Institute of Internal Combustion Engines and Control Engineering.
63 citations
TL;DR: In this article, the emission features of Dy3+ ions were characterized as a function of Al2O3 concentration in lead silicate glasses, and the emission spectra exhibited conventional blue, yellow, orange and red emission bands due to 4F9/2→ 6H15/2, 6H13/2 and 6H11/2 transitions of Dy 3+ ions, respectively.
49 citations
Journal Article•
TL;DR: The obtained results suggest that vitamin D analogs could be used in combined colonic cancer treatment with irinotecan or oxaliplatin, however, the regulation of ERK1/2 expression by both analogs and oxali Platin may explain the observed antagonistic interactions.
Abstract: Aim: The aim of this study was the evaluation of the antitumor effect of two synthetic analogs of vitamin D, PRI-2191 and PRI-2205 in combined treatment with irinotecan or oxaliplatin on mouse (MC38) and human (HT-29) colon cancer cells. Materials and Methods: Mice bearing subcutaneous tumors were injected with vitamin D analogs and with irinotecan or oxaliplatin, according to various schedules. Results: Statistically significant inhibition of MC38 tumor growth by combined therapy was observed. When analogs were used in combined treatment with irinotecan, survival times of mice were significantly prolonged. We also observed improved antitumor effects in combined treatment with oxaliplatin in mice bearing HT-29 tumors, however, antagonism in life span prolongation was observed. Analog PRI-2191 increased the expression of vitamin D receptor (VDR), retinoic X receptor-α (RXRα) and phosphorylated extracellular signal regulated kinase 1/2 (p- ERK1/2) in HT-29 tumors when used alone. VDR and RXRα expressions were up-regulated by PRI-2191 analog, as compared to oxaliplatin alone. Conclusion: The obtained results suggest that vitamin D analogs could be used in combined colonic cancer treatment with irinotecan or oxaliplatin. However, the regulation of ERK1/2 expression by both analogs and oxaliplatin may explain the observed antagonistic interactions. Data from experimental, clinical and epidemiological studies suggest that vitamin D and calcium may reduce colorectal cancer risk via various mechanisms, including binding of bile acids and long-chain fatty acids in the small intestine and protecting colon epithelial cells from mutagens. In addition, their influence on cell proliferation, differentiation, apoptosis, angiogenesis and cell-cycle regulation is considered (1-6).
46 citations
TL;DR: The obtained results show the good performance with respect to the removal of heavy metals from landfill leachate with the overall removal efficiency of 99%, 88% and 55% for Pb(II), Cd(II) and Zn( II) ions, respectively.
42 citations
01 Jan 2013
38 citations
TL;DR: In this paper, the problem of fractional heat conduction in a composite medium consisting of two semi-infinite regions being in perfect thermal contact is considered, and the solution is obtained using the Laplace transform with respect to time and is expressed in terms of the Mittag-Leffler function and Mainardi function.
Abstract: The problem of fractional heat conduction in a composite medium consisting of two semi-infinite regions being in perfect thermal contact is considered The heat conduction in each region is described by the time-fractional heat conduction equations with the Caputo derivative of fractional order α and β, respectively The solution is obtained using the Laplace transform with respect to time and is expressed in terms of the Mittag–Leffler function and Mainardi function Numerical results are illustrated graphically
38 citations
Journal Article•
37 citations
TL;DR: In this article, the synthesis and nonlinear optical features of novel temperature operated materials based on Tl4HgI6 single crystals are reported and compared with the photo-induced optical second harmonic generation for the fundamental 5.5μm wavelength.
Abstract: In this work, we report on the synthesis and nonlinear optical features of novel temperature operated materials based on Tl4HgI6 single crystals. Nonlinear optical, differential scanning calorimetry (DSC) and mechanical properties of the titled crystals are studied within the temperature range 300–500 K. We have established that Tl4HgI6 single crystal show both positive and negative value of linear expansion temperature coefficient. The temperature region of rapid reduction coefficient for linear expansion is very small (only 2°–5°), which corresponds to occurrence of structural transformation for the Tl4HgI6 single crystal. Comparison between the temperature dependence of the photo-induced optical second harmonic generation for the fundamental 5.5 μm wavelength is performed. We present an explanation for structural phase transition of the crystal Tl4HgI6 considering temperature changes of crystal lattice parameters and describing the transition from centrosymmetric phase P4/mnc, at ambient temperature to non-centrosymmetric P4nc at T > 458 K. The photo induced changes indicate a possibility of occurrence of intermediate non-centrosymmetry phase. Particular analysis is devoted to correlate with the temperature dependence of the DSC within the same temperature range. Physical mechanisms responsible for the observation of the dependences are given and they are based on the condensation of the soft phonon modes which are closely related with the anharmonic electron–phonon interactions responsible for the effects.
26 citations
TL;DR: It has been found that tested N-furfurylidene-p-anisidine (1a), N-(2-nitrofurmethoxyphenyl)-p-toluidine (1d) and aminophosphonic acids 2a-c are toxic for selected plants.
Abstract: The aim of this work was to synthesize selected furaldimines and their aminophosphonic derivatives and evaluation the phytotoxicity of new obtained products according to OECD 208 Guideline. Four Schiff bases, N-furfurylidene-p-anisidine (1a), N-furfurylidene-p-toluidine (1b), N-furfurylidene-benzhydrylamine (1c), and N-(2-nitrofurfurylidene)-p-toluidine (1d) were synthesized and three new furan-derived N-substituted aminomethylphosphonic acids, namely: 2-furyl N-(p-methoxyphenyl)-aminomethylphosphonic acid (2a), 2-furyl N-(p-methylphenyl)-aminomethylphosphonic acid (2b) and 2-furyl N-(diphenylmethyl)-aminomethylphosphonic acid (2c) were synthesized by the addition of in situ generated bis-(trimethylsilyl) phosphite to azomethine bond of corresponding Schiff bases 1a-c. Three Schiff bases 1a-b and 1d as well as all three aminophosphonic acids 2a-c were analyzed in regard with their phytotoxicity toward two plants, radish (Raphanus sativus) and oat (Avena sativa). It has been found that tested N-furfurylidene-p-anisidine (1a), N-(2-nitrofurfurylidene)-p-toluidine (1d) and aminophosphonic acids 2a-c are toxic for selected plants. N-furfurylidene-p-toluidine (1b) did not show any ecotoxicological impact in used plant growth test.
Posted Content•
TL;DR: In this paper, a theoretical discussion of the thermodynamic properties of this novel structures within the strong-coupling limit is presented, and it has been observed that the conventional electron-phonon mediated superconducting phase in graphene can be easily induced by doping its surface with the lihitum adatoms.
Abstract: It has been recently observed that the conventional electron-phonon mediated superconducting phase in graphene can be easily induced by doping its surface with the lihitum adatoms. Due to the emerging interest in this field of research we present our theoretical discussion of the thermodynamic properties of this novel structures within the strong-coupling limit. We show, that together with the increase of the adatom doping, from one (LiC$_{6}$) to two (Li$_{2}$C$_{6}$) lithium atoms per unit cell, the critical temperature ($T_C$) changes from 8.55 K to 21.83 K. Such trend is also observed for other thermodynamic properties which moreover differ from the predictions of the Bardeen-Cooper-Schrieffer theory. In particular, the zero-temperature energy gap to the critical temperature ratio: R$_{\Delta}^{{\rm LiC}_6}$=3.72 and R$_{\Delta}^{{\rm Li}_{2}{\rm C}_6}$=4.21; the ratio of the specific heat for superconducting and the normal state: R$_{\rm C}^{{\rm LiC}_6}$=1.47 and R$_{\rm C}^{{\rm Li}_{2}{\rm C}_6}$=1.79; and the parameter connected with the zero-temperature thermodynamic critical field: R$_{\rm H}^{{\rm LiC}_6}$=0.167 and R$_{\rm H}^{{\rm Li}_{2}{\rm C}_6}$=0.144. Finally the electron effective mass at $T_c$ is calculated to be: $(1.62m_e)_{{\rm LiC}_6}$ and $(2.48m_e)_{{\rm Li}_{2}{\rm C}_6}$.
TL;DR: In this article, the positron annihilation lifetime technique was used to reveal free volume redistribution caused by structural relaxation during long-term natural physical ageing in AsxSe100-x and GeySe100y glasses.
Abstract: Free volume redistribution, caused by structural relaxation during long-term natural physical ageing, is revealed by positron annihilation lifetime technique for AsxSe100-x and GeySe100-y glasses. It is shown, that two-state positron trapping model is appropriate for an adequate description of changes caused by long-term physical ageing in the atomic-deficient subsystem of these materials. The observed behaviour of defect-related component in the fit of the experimentally measured PAL spectra for aged and rejuvenated glasses testifies in favour of fragmentation of larger free volume entities.
TL;DR: It is shown how to record and analyze solid-state NMR spectra of organic paramagnetic complexes with moderate hyperfine interactions using the Cu-cyclam complex as an example, and the possibility of recording a dipolar HSQC spectrum with the advantage of direct (1)H acquisition is discussed.
Abstract: We show how to record and analyze solid-state NMR spectra of organic paramagnetic complexes with moderate hyperfine interactions using the Cu-cyclam complex as an example. Assignment of the (13)C signals was performed with the help of density functional theory (DFT) calculations. An initial assignment of the (1)H signals was done by means of (1)H-(13)C correlation spectra. The possibility of recording a dipolar HSQC spectrum with the advantage of direct (1)H acquisition is discussed. Owing to the paramagnetic shifting the resolution of such paramagnetic (1)H spectra is generally better than for diamagnetic solid samples, and we exploit this advantage by recording (1)H-(1)H correlation spectra with a simple and short pulse sequence. This experiment, along with a Karplus relation, allowed for the completion of the (1)H signal assignment. On the basis of these data, we measured the distances of the carbon atoms to the copper center in Cu-cyclam by means of (13)CR2 relaxation experiments combined with the electronic relaxation determined by EPR.
TL;DR: In this article, the properties of standard LiF thermoluminescent (TL) detectors, which are routinely used in radiation protection systems, were investigated under light stimulation, and the temperature stability of the traps responsible for the PL effect for both types of LiF detectors was studied.
TL;DR: The research described in this paper reveals some important discoveries within this field due to application of novel scenario for computer simulations concerning the entire AHP framework (contrary to single matrix simulation results).
Abstract: The Analytic Hierarchy Process (AHP), the multicriteria decisions making support methodology widely recognized and accepted as the prioritization and choice theory may deliver different answers for a decisional problem, providing various rankings of its alternative solutions. The variety in priorities order exists because there are many methods that can be successfully implemented within the AHP, although its inventor, Thomas Saaty strives to convince researchers that there is only one i.e. principal right eigenvector method (REV) created alongside. Facts tell us however, that REV has some drawbacks and few flaws. The research described in this paper reveals some important discoveries within this field due to application of novel scenario for computer simulations concerning the entire AHP framework (contrary to single matrix simulation results). Statistically significant findings convince that REV concedes other methods being under study what authorize to claim that from the perspective of this research, as long as reciprocal pairwise comparison matrices are considered (condition embedded in the AHP), it should not be perceived as the dominant method.
TL;DR: Ionic liquids have attracted considerable interest in various areas as new, nonvolatile and nonflammable organic solvents, catalysts, reaction additives, ligands, drugs, and other dedicated materials as discussed by the authors.
Abstract: Ionic liquids have attracted considerable interest in various areas as new, nonvolatile and nonflammable organic solvents, catalysts, reaction additives, ligands, drugs, and other dedicated materials. Ionic liquids exhibit solubility both in organic solvents and in water. They also constitute very good solvents for many inorganic, organic, and organometallic compounds. Yet, the most important feature of ionic liquids is that they provide the possibility of obtaining substances of optimal properties for a given process through modification of the cation structure and selection of the appropriate anion. Therefore, the term designer solvents has been invented for these salts. The above characteristics and relatively low production cost may soon lead to the situation, in which huge amounts of these chemicals will be brought into environment via industry, agriculture, and commercial trading. Their general use, sometimes in bulky quantities, requires determination of their potential ecotoxicity on sele...
01 Jan 2013
TL;DR: The space-time fractional heat conduction equation with the Caputo time fractional derivative and the Riesz fractional Laplace operator is investigated and the fundamental solutions to the Cauchy and source problems as well as associated thermal stresses are found in the case of spherical symmetry.
Abstract: The space-time fractional heat conduction equation with the Caputo time fractional derivative and the Riesz fractional Laplace operator is investigated. The fundamental solutions to the Cauchy and source problems as well as associated thermal stresses are found in the case of spherical symmetry. The numerical results for temperature and stresses are presented graphically for various orders of space and time derivatives.
TL;DR: In this paper, the authors considered heat conduction in two joint half-lines under the condition of perfect contact, i.e., when the temperatures at the contact point and the heat fluxes through the contact points are the same for both regions.
Abstract: Heat conduction in two joint half-lines is considered under the condition of perfect contact, i.e. when the temperatures at the contact point and the heat fluxes through the contact point are the same for both regions. The heat conduction in one half-line is described by the equation with the Caputo time-fractional derivative of order α, whereas heat conduction in another half-line is described by the equation with the time derivative of order β. The fundamental solutions to the first and second Cauchy problems as well as to the source problem are obtained using the Laplace transform with respect to time and the cos-Fourier transform with respect to the spatial coordinate. The fundamental solutions are expressed in terms of the Mittag-Leffler function and the Mainardi function.
TL;DR: The existence of Li-rich super-lightweight intermetallics in the Li-Mg-Si ternary system has attracted attention for high capacity hydrogen storage materials as discussed by the authors.
TL;DR: In this article, the third-order nonlinear optical susceptibilities of gold(III) maleimide dithiolate tetraphenylphosphonium, (PPh4)[Au(midt)2], (Au-P), Au-Mel, and gold(I.M.S.S) hybrid solvate were determined using the DFWM technique.
TL;DR: A study has been conducted in order to determine presence of free volume gaps in the structure of structure of polymer hydrogel contact lenses made in phosphoryl choline technology and of the degree of defect of its structure.
Abstract: A study has been conducted in order to determine presence of free volume gaps in the structure of structure of polymer hydrogel contact lenses made in phosphoryl choline technology and of the degree of defect of its structure. The study was made by means of positron annihilation lifetime spectroscopy. As a result of the conducted measurements, curves were obtained, which described numbers of counts of the acts of annihilation in the time function. The conducted studies revealed existence of three components τ1, τ2 and τ3. The τ3 component is attributed to the pick-off annihilation of o-Ps orthopositronium trapping by free volume gaps and provides information about geometrical parameters of the volumes. At the same time, the UV–vis–NIR spectrometry examination was conducted on the same samples in the spectral range 200–1,000 nm.
TL;DR: In this article, the influence of Bi on the network structure of Ge20Se80−yBiy and As40−ySe60Biy glasses was investigated by high-resolution X-ray photoelectron spectroscopy (XPS).
Abstract: The influence of Bi on the network structure of Ge20Se80−yBiy and As40−ySe60Biy glasses is investigated by high-resolution X-ray photoelectron spectroscopy (XPS). The results show that Bi enters the glass network of both Ge–Se and As–Se glass systems in the form of BiSe3/2 pyramids, with a significant increase in the concentration of homopolar Ge–Ge and As–As bonds, respectively, compared to Bi-free samples. In these compositions, topological self-organization is found to play a minor role in comparison to phase separation tendencies at the nanoscale caused by Bi addition. It is suggested that BiSe3/2 rich regions occur as partially ordered nano-thin sheets, which may account for the percolative-type response of electrical conductivity observed in similar Bi containing systems.
TL;DR: In this article, the time-fractional heat conduction equation with the Caputo derivative of the order 0 < α ≤ 2 is considered in an infinite medium with a spherical hole in the central symmetric case under two types of Robin boundary condition: the mathematical one with the prescribed linear combination of the values of temperature and its normal derivative at the boundary, and the physical condition with a prescribed linear combinations of the temperature and the value of the heat flux in the boundary.
Abstract: The time-fractional heat conduction equation with the Caputo derivative of the order 0 < α ≤ 2 is considered in an infinite medium with a spherical hole in the central symmetric case under two types of Robin boundary condition: the mathematical one with the prescribed linear combination of the values of temperature and the values of its normal derivative at the boundary and the physical condition with the prescribed linear combination of the values of temperature and the values of the heat flux at the boundary. The integral transforms techniques are used. Several particular cases of the obtained solutions are analyzed. The numerical results are illustrated graphically.
TL;DR: In this paper, cyclodextrin-based polyrotaxanes with threads containing poly(ethylene oxide), poly(4,4′-diphenylenevinylene), polyfluorene and other chains are described.
Abstract: In the paper cyclodextrin-based (CD) polyrotaxanes are presented in the aspect of their syntheses and properties allowing various applications. The text consists of four parts, which describe CD-based polyrotaxanes with threads containing poly(ethylene oxide), poly (4,4′-diphenylenevinylene), polyfluorene and other chains. Conclusion shows new trends connected with this theme.
TL;DR: In this paper, the Coulomb pseudopotential is characterized by the high critical temperature T C ( μ ⋆ ) ∈ 〈 54.5, 31.2, 0.3 〉 K.
TL;DR: In this article, the influence of high-energy γ-irradiation on the FSDP in XRD pattern is investigated at the example of g-As 2 S 3, where Spectroscopic measurements in the fundamental optical absorption edge regions were used to characterize the value of γinduced changes through the observed darkening effect.
TL;DR: In this paper, the luminescence of F and F + centers and excitons localized around F-like centers in Al 2 O 3 host was studied. But the results of the comparative investigation of the luminecence properties of Al 2O 3 and Al 2 o 3 :C crystals under excitation by synchrotron radiation in the 3.7-15 eV range were not available.
01 Dec 2013
TL;DR: A SAT-based bounded model checking method for weighted interpreted systems and a propositional encoding designed specifically for managing weighted temporal operators and knowledge operators, which are commonly found in properties of multi-agent systems in models of which the authors assume that acting of agents may cost.
Abstract: We present a SAT-based bounded model checking (BMC) method for the weighted interpreted systems (i.e. interpreted systems augmented to include a weight function, one per each agent, that associates weights with actions, which are arbitrary natural numbers) and for properties expressible in the existential fragment of a weighted linear temporal logic with epistemic components (WELTLK). Since in BMC we translate both the system model and the checked specification to a propositional formula that is later analysed by a SAT-solver, we report on a propositional encoding of both the weighted interpreted systems and the WELTLK formulae. This encoding is designed specifically for managing weighted temporal operators and knowledge operators, which are commonly found in properties of multi-agent systems in models of which we assume that acting of agents may cost. We implemented the proposed BMC algorithm as a new module of VerICS, and we evaluated it by means of the following two examples: a weighted generic pipeline paradigm and a weighted bits transmission problem.
TL;DR: The absence of the typical crenophilic species Bithynella austriaca and the presence of Gianus aquedulcis may indicate the autonomy of the spring fauna in the Mstów area, possibly resulting from the postglacial geomorphological formation of this region or differences in habitat conditions.
Abstract: Spatial patterns in macroinvertebrate communities and some abiotic factors were examined in three rheocrene springs and their springbrooks (Krakow-Czestochowa Upland, southern Poland). The mean discharge of particular springs ranged from 5 to 11 L s−1, and its annual fluctuations were small. Water temperature was very stable at all sampling sites. In the eucrenon the number of benthic taxa was the smallest (9–14 determined to the family level), but the densities were the highest (approx. 14000 ind. m−2). The biggest changes in macroinvertebrate composition were observed in the modified hypocrenon, which is an artificial pond. The lowest number of taxa were found in a natural, short springbrook with a nondiversified bottom substrate. The density of crenophilic taxa (Drusus trifidus, Dugesia gonocephala, Elmidae) diminished along the springbrooks, while the opposite trend was observed for ubiquitous taxa (some Oligochaeta, Asellus aquaticus and Chironomidae). Even in a very short natural springbrook (30 m), Drusus trifidus, the only species of Trichoptera found in the springs discussed here, goes through the entire development cycle. The strongest influence of a big river was observed at the outflow of one of the natural springbrooks, where the highest number of riverine oligochaete species were found. The benthic fauna of the springs studied here differed from that found in other springs in this area — the absence of the typical crenophilic species Bithynella austriaca (Gastropoda) and the presence of Gianus aquedulcis (Oligochaeta) may indicate the autonomy of the spring fauna in the Mstow area, possibly resulting from the postglacial geomorphological formation of this region or differences in habitat conditions.