bluuebunny/crossref_metadata_2025_split huggingface dataset:
Small-mammal assemblages inhabiting Sphagnum peat bogs in various regions of Poland
Authors: Ciechanowski Mateusz , Cichocki Jan , Ważna Agnieszka , Piłacińska Barbara 
Published: April 2013

Abstract
We studied species composition of assemblages of small mammals (rodents and shrews) inhabiting Polish 25 ombrotrophic mires and quaking bogs in several regions in order to reveal characteristic features of their quantitative structure and compare them between regions, internal zones of the bog habitats, and different levels of anthropogenic degradation. We reviewed also all published results of small-mammal trapping in such habitats. Mammals were captured in pitfalls, snap traps and live traps on 12 bogs of the Pomerania region, 4 bogs of the Orawa-Nowy Targ Basin (Kotlina Orawsko-Nowotarska), 3 bogs in the Świętokrzyskie Mts, and 6 bogs in Wielkopolska and the Lubusz Land. Additionally, we included materials collected from Barber traps (pitfalls) used during studies of epigeic invertebrates on 4 bogs. In total, 598 individuals of 12 species were collected. The number of pitfall captures per 100 trapnights was very low (7.0-7.8), suggesting low population density. Shrews predominated among mammals captured in pitfalls, and the assemblage structure appeared to be similar to impoverished forest fauna, slightly enriched with ubiquitous species from meadows and agroecosystems, with a very small percentage of typical wetland species (Neomys fodiens, Neomys anomalus, Microtus oeconomus). Rodents (mostly Myodes glareolus) predominated only in samples obtained by live and snap traps. Pygmy shrew Sorex minutus was the most numerous species at most sites, sometimes being the only small mammal in that habitat, especially in well-preserved, treeless parts of bogs, dominated by Sphagnum peatmoss. The dominance and high constancy of S. minutus appear to be a characteristic feature of small-mammal assemblages inhabiting ombrotrophic mires, at least in some regions of Central and Western Europe. Enrichment of the fauna with other species might be related to either improved trophic conditions (by contact with mineralized ground waters) or habitat degradation (by peat mining, drainage, and subsequent secondary succession).
Visitor awareness of brown bear (Ursus arctos) human-food conditioning in Bieszczady and Tatra National Parks (Carpathians, Poland)
Authors: Spalona Anna 
Published: April 2013

Abstract
This paper investigates the awareness of visitors to Bieszczady National Park (BNP) and Tatra National Park (TNP) of human influence on brown bears (Ursus arctos Linnaeus, 1758), i.e. what causes human-habituated bears to become food-conditioned. In the parks studied, 928 questionnaires were collected in July and August 2007. The survey was supplemented with data on the amount of garbage collected in both parks by municipal services in 2007. Respondents in BPN displayed significantly greater knowledge about the causes of human-food conditioning of bears than respondents in TNP (64.2% and 52.7%, respectively, had more than the average of 3.54 correct answers per 5 questions in the questionnaire). As many as 60.1% of visitors in both parks incorrectly associated human-food conditioning with a lack of natural food and 34.4% withan excessive number of bears. Most respondents did not realise that to prevent human-bear conflict, decisive actions must be taken towards every food conditioned bear observed in the free-living population. Unlike in BNP, in TNP there is a large amount of rubbish left by visitors along trails. In 2007, municipal services collected in both parks a similar amount of garbageper 1000 visitors (0.39 m3 and 0.37 m3 in BNP and TNP, respectively) but the annual number of visitors is nearly 8‑fold lower inBNP than in TNP. In BNP, only visitors put rubbish in containers, while in TNP, additional 6 cleaning companies are employed to collect rubbish thrown by visitors along trails. In contrast to TNP, however, in BNP there are no bear-proof containers. Both parks need to prevent the access of bears to rubbish. It is also advisable to initiate an effective information campaign among visitors about prevention of human-food conditioning of bears.
Vertiginous Pull of Negative Rhetoric: The American “No! In Thunder”
Authors: Semrau Janusz 
Published: April 2013

Abstract
The paper presents a sample historical-literary survey of a specific popular idea of the gist of ‘Americanness’ in the guise of condensed observations in broad cultural circulation. This is to provoke the question about the degree to which this kind of discourse may reflect the so-called habits of the heart (de Tocqueville [1835-1840] 1966: 264), as against how at a certain point it may explode - to borrow from Paul de Man (1979: 10) - into “vertiginous possibilities of referential aberration”.1
Between Habits of the Heart and Copulation of Clichés: Some Popular American Stories, Mores and Shibboleths
Authors: Semrau Janusz 
Published: April 2013

Abstract
From the very beginning, all manner of ideas, concepts and conceits have been advanced to explain America and Americans - as much to themselves as to others. The paper presents a historical- literary compilation of popular notions of ‘Americanness’ in the guise of random de Tocquevillian observations in general circulation. This is to provoke the question about the degree to which this kind of pervasive discourse may reflect the so-called habits of the heart, as against how at a certain point it may lapse into a Nabokovian copulation of clichés.
Reduplication of Consonant Graphemes in the Ormlum in The Light of Late Old English Scribal Evidence
Authors: Mokrowiecki Tomasz 
Published: April 2013

Abstract
As opposed to previous studies, which usually attempt to refute the traditional interpretation put on the use of double consonants in The Ormulum, and attempt to advance an alternative explanation for the abnormally frequent use of <CC> digraphs, the current study primarily focuses on the standard view, which assumes that the scribe of MS Junius 1 applied double consonant graphemes to indicate vowel shortness. However, in this study the evidence comes not from The Ormulum but from two Late Old English MSS, as the use of double consonants to indicate vowel shortness is also occasionally attested in some earlier texts (Anderson - Britton 1997: 34, 51, 1999: 305, 317-323; Smith 2007: 107; and Laing 2008: 7-8). The major aim of this study is to show that the use of reduplicated consonant graphemes as indicators of vowel shortness is not confined exclusively to The Ormulum because this practice derives directly from Old English scribal tradition, where <CC> sequences were used not only to represent geminate (or long) consonants, but sporadically also for marking short vowels.
On the separately open topology
Authors: Piotrowski Zbigniew , Vallin Robert W. , Wingler Eric 
Published: April 2013

Abstract
We consider the relationship between separately continuous functions and separately open sets, and we study the properties of the separately open topology on R2 and on Q2. We show that R2 with this topology (denoted R ⊗R) is completely and strongly Hausdorff and that Q⊗Q is normal but not a p-space. In addition, we show that each point of Q ⊗Q has an uncountable neighborhood base.
Remarks on small sets on the real line Remarks on small sets on the real line
Authors: Filipczak Małgorzata , Wagner-Bojakowska Elžbieta 
Published: April 2013

Abstract
We consider two kinds of small subsets of the real line: the sets of strong measure zero and the microscopic sets. There are investigated the properties of these sets. The example of a microscopic set, which is not a set of strong measure zero, is given.
Product of m-measures
Authors: Mazureková Petra , Petrovičová Jozefína , Riečan Beloslav 
Published: April 2013

Abstract
M-measures have been introduced as a useful tool for probability theory on IF-events. We deal with the product of M-measures, a notion which is important for the construction of a joint observable - an analogue of a random vector in the Kolmogorov theory.
A new approach to ψ-continuity
Authors: Terepeta Małgorzata 
Published: April 2013

Abstract
Let Tψ be a ψ-density topology for a fixed function ψ. For any topological space X with the topology τ we will consider the family C (X, ℝψ) of all continuous functions f from (X, τ) into (ℝ, Tψ). The main aim of this paper is to investigate when C (X, ℝψ) is a ring. This article is based on the results achieved by M. Knox [A characterization of rings of density continuous functions, Real Anal. Exchange 31 (2005), 165-177].
On a non-homogeneous difference equation from probability theory
Authors: Guilbault Jean-Luc , Lefebvre Mario 
Published: April 2013

Abstract
The so-called gambler’s ruin problem in probability theory is considered for a Markov chain having transition probabilities depending on the current state. This problem leads to a non-homogeneous difference equation with non-constant coefficients for the expected duration of the game. This mathematical expectation is computed explicitly.
Uniqueness intervals and two–point boundary value problems
Authors: Gustafson Grant B. 
Published: April 2013

Abstract
Consider a linear nth order differential equation with continuous coefficients and continuous forcing term. The maximal uniqueness interval for a classical 2-point boundary value problem will be calculated by an algorithm that uses an auxiliary linear system of differential equations, called a Mikusinski system. This system always has higher order than n. The algorithm leads to a graphical representation of the uniqueness profile and to a new method for solving 2-point boundary value problems. The ideas are applied to construct a graphic for the conjugate function associated with the nth order linear homogeneous differential equation. Details are given about how to solve classical 2-point boundary value problems, using auxiliary Mikusinski systems and Green’s function.
On asymptotic behavior of solutions of discrete systems
Authors: Hlavičková Irena 
Published: April 2013

Abstract
This contribution concerns the asymptotic behavior of solutions of systems of difference equations. It reassumes paper [J. Dibl´ık: Anti-Lyapunovmethod for systems of discrete equations, Nonlinear Anal. 57 (2004), 1043-1057], where conditions are described which ensure that the graph of at least one solution of the studied system stays in a prescribed domain. Those conditions include the existence of a so called connecting function for the sets forming the given domain. The connecting function must have certain properties which enable the use of the retract method for the proof of the main result of the cited work. We show that the conditions can be made simpler, without the need to introduce the connecting function.
Cauchy functional equation and generalized continuity
Authors: Kostyrko Pavel 
Published: April 2013

Abstract
There are many kinds of the generalization of continuity. T. ˇSal´at raised the question: Can everywhere discontinuous solution of Cauchy functional equation ƒ(x + y) = ƒ(x) + ƒ(y) be continuous in some generalized sense? The paper deals with this question
Density topologies on the plane between ordinary and strong
Authors: Wagner-Bojakowska Elžbieta , Wilczyński Władysław 
Published: April 2013

Abstract
Let C0 denote the set of all non-decreasing continuous functions f : (0, 1] →(0, 1] such that limx→0+ ƒ(x) = 0 and ƒ(x) ≤ x for x ∈(0, 1] and let A be a measurable subset of the plane. We define the notion of a density point of A with respect to ƒ. This is a starting point to introduce the mapping Dƒ defined on the family of all measurable subsets of the plane, which is so-called lower density. The mapping Dƒ leads to the topology Tƒ, analogously as for the density topology. The properties of the topologies Tƒ are considered.
A note on ρ-upper continuous functions
Authors: Kowalczyk Stanisław , Nowakowska Katarzyna 
Published: April 2013

Abstract
In the present paper, we introduce the notion of classes of ρ-upper continuous functions. We show that ρ-upper continuous functions are Lebesgue measurable and, for ρ < 1/2 , may not belong to Baire class 1. We also prove that a function with Denjoy property can be non-measurable.
On the calculation of the linear equivalence bias of jump controlled linear finite state machines
Authors: Jansen Cees J. A. 
Published: April 2013

ABSTRACT
Jump controlled linear finite state machines were introduced several years ago as building blocks for stream ciphers that can efficiently be implemented in hardware and have intrinsically good side channel resistance. These constructions have found their way in concrete stream cipher designs. The bias in the distribution of linear relations of low degree in the key stream is important for the cryptographic strength of these stream ciphers. Recently, an algorithm was presented by the author to determine this bias. In this paper a new algorithm is introduced, that makes use of the properties of jump registers and has sub exponential order in the degree of the characteristic polynomial of the linear finite state machine.
On the use of the lattice sieve in the 3D NFS
Authors: Zajac Pavol 
Published: April 2013

ABSTRACT
An adaptation of the Number Field Sieve (NFS) algorithm to solve a discrete logarithm problem in degree 6 finite fields (DLP6) requires a modified sieving procedure to find smooth elements of the three dimensional sieve space. In our successful solution [P. Zajac: Discrete Logarithms and Degree Six NumbereField Sieve: A practical Approach. VDM Verlag Dr. M¨uller, Saarbr¨ucken, 2009] we have used a modified line sieving to process a box-shaped region using a large factor base. In this contribution, we compare the results with an alternative approach based on the lattice sieving, which was used in most of the classical factorization and DLP record solutions. Results indicate that this approach does not scale to the 3D-case, making DLP6 more difficult in practice than comparable classical DLP cases.
Another proof of Hurewicz theorem
Authors: Repický Miroslav 
Published: April 2013

ABSTRACT
. A Hurewicz theorem says that every coanalytic non-Gδ set C in a Polish space contains a countable set Q without isolated points such that Q̅ ∩ C = Q. We present another elementary proof of this theorem and generalize it for k-Suslin sets. As a consequence, under Martin’s Axiom, we obtain a characterization of ∑12 sets that are the unions of less than the continuum closed sets.
A note on the Kluvánek integral
Authors: Rieˇcan Beloslav , Tkaˇcik Stefan 
Published: April 2013

ABSTRACT
For real valued functions, Igor Kluv´anek has introduced an integral, called Archimedean, which is equivalent to the Lebesgue integral. It is based on the summation of infinite series and it avoids measure. Modifying the definition by Kluv´anek, we introduce an integral which has some good and some bad properties and we compare it with the Lebesgue integral.
A decomposition of bounded, weakly measurable functions
Authors: Singh Khurana Surjit 
Published: April 2013

ABSTRACT
Let (X,A,μ) be a complete probability space, ρ a lifting, Tρ the associated Hausdorff lifting topology on X and E a Banach space. Suppose F: (X,Tρ)-> E”σ be a bounded continuous mapping. It is proved that there is an A ∈ A such that FXA has range in a closed separable subspace of E (so FXA:X → E is strongly measurable) and for any B ∈ A with μ(B) > 0 and B ∩ A = ø, FXB cannot be weakly equivalent to a E-valued strongly measurable function. Some known results are obtained as corollaries.
Markov type polynomial inequality for some generalized Hermite weight
Authors: Ftorek Branislav , Marˇcokov´A Mariana 
Published: April 2013

ABSTRACT
In this paper we study some weighted polynomial inequalities of Markov type in L2-norm. We use the properties of the system of generalized Hermite polynomials . The polynomials H(α)n (x) are orthogonal in ℝ = (−∞,∞) with respect to the weight function .
The classical Hermite polynomials Hn(x) present the special case for α = 0.
Deterministic models and identification of their parameters
Authors: Pink Václav 
Published: April 2013

ABSTRACTThis article deals with a possibility to identify parameters of a selected growth model of two populations coupled by a predator-prey interaction from a set of observed data. It starts with a brief description of the Gause-type model and of a property (interior equilibrium stability) important from a point of view of an application. Subsequently, data for four forms of the trophic function are simulated and then, a noise was added to the simulated data such that the coefficients of variation equal to 0.2, 0.3 and 0.4. For each data set, the parameters are estimated using a procedure implemented in the R-language package and the coordinates of equilibrium are computed. Then we can evaluate the effect of changing variation to the values of parameters and (un)stability of the equilibrium.
On computational complexity of construction of c -optimal linear regression models over finite experimental domains
Authors: Antoch Jaromír , Černý Michal , Hladík Milan 
Published: April 2013

ABSTRACTRecent complexity-theoretic results on finding c-optimal designs over finite experimental domain X are discussed and their implications for the analysis of existing algorithms and for the construction of new algorithms are shown. Assuming some complexity-theoretic conjectures, we show that the approximate version of c-optimality does not have an efficient parallel implementation. Further, we study the question whether for finding the c-optimal designs over finite experimental domain X there exist a strongly polynomial algorithms and show relations between considered design problem and linear programming. Finally, we point out some complexity-theoretic properties of the SAC algorithm for c-optimality.
Decomposition of multivariate statistical models
Authors: Fišerová Eva , Kubáček Lubomír 
Published: April 2013

ABSTRACT
The paper is focused on decomposition of a multivariate model into a system of two simpler models. The multiresponses are considered to be in- dependent with the same covariance matrix. Tests are proposed to identify which of the two models should be used in order to obtain more efficient estimators. In a case of partly known model parameters, a tolerance domain for negligible parameters is given.
Pairwise comparisons for parallel profile models with mixed effects
Authors: Hyakutake Hiroto 
Published: April 2013

ABSTRACT
There are several linear and nonlinear models for analyzing repeated measurements. The mean response for an individual depends on the regression parameters specific to that individual. One of the simple forms is the sum of vectors of fixed parameters and random effects. When the models with mixed effects for several groups are parallel, pairwise comparisons of level differences are considered. For the comparisons, approximate simultaneous confidence intervals are given.
Detection of non-affine shape outliers for matched-pair shape data
Authors: Katina Stanislav 
Published: April 2013

ABSTRACT
Cleft lip/palate (CLP) is a relatively common birth defect so dis- figuring that nowadays it is almost always corrected surgically as early as possible. The postnatal surgical correction does not, however, result in a normally growing upper jaw, but instead, owing to scar tissue, one that grows abnormally. It is important to decide if a clinical treatment group is homogeneous. The example involves data from digitally processed lateral X-ray films of 48 boys who have complete unilateral CLP but no other malformation. 22 landmarks were represented by their Procrustes shape coordinates, principal components of matched- pair differences were examined, and the distribution of the 48 shape changes was studied for outliers in the affine and non-affine subspaces of the full Procrustes shape and form space. To separate outliers from inliers we use bagplots. There are no outliers apparent in the affine subspace. In the non-affine subspaces, we found no outliers in the subspace of bending patterns at large scale but four out- liers in the subspace of local changes at small scale. Almost the same outliers were found by form-space PCA. These latter are associated with possible creases of the corresponding thin-plate splines. In those cases we can use the same spline formalism to relax the outlying form to an inlier by optimal relaxation along the curve d´ecolletage that weighs bending energy against Procrustes distance and stop relaxation on the fence. These maneuvers suggest a possibly novel and interesting fusion of the Procrustes-spline toolkit with outlier detection. They also have practical implications for craniofacial management of CLP follow-up as well as suggestive implications for outlier detection in applied craniometrics and anthropometrics more generally.
Network-related problems in optimal experimental design and second order cone programming
Authors: Sagnol Guillaume 
Published: April 2013

ABSTRACT
In the past few years several applications of optimal experimental designs have emerged to optimize the measurements in communication networks. The optimal design problems arising from this kind of applications share three interesting properties: (i) measurements are only available at a small number of locations of the network; (ii) each monitor can simultaneously measure several quantities, which can be modeled by “multiresponse experiments”; (iii) the observation matrices depend on the topology of the network. We give an overview of these experimental design problems and recall recent results for the computation of optimal designs by Second Order Cone Programming (SOCP). New results for the network-monitoring of a discrete time process are presented. In particular, we show that the optimal design problem for the monitoring of an AR1 process can be reduced to the standard form and we give experimental results.
On Distinguishing Attack Against the Reduced Version of the Cipher Nlsv2
Authors: Braško Michal , Boor Jaroslav 
Published: April 2013

ABSTRACT
The Australian stream cipher NLSv2 [Hawkes, P.-Paddon, M.-Rose, G. G.-De Vries, M. W.: Primitive specification for NLSv2, Project eSTREAM web page, 2007, 1-25] is a 32-bit word oriented stream cipher that was quite successful in the stream ciphers competition-the project eSTREAM. The cipher achieved Phase 3 and successfully accomplished one of the main requirements for candidates in Profile 1 (software oriented proposals)-to have a better performance than AES in counter mode. However the cipher was not chosen into the final portfolio [Babbage, S.-De Canni`ere, Ch.-Canteaut, A.-Cid, C.-Gilbert, H.-Johansson, T.-Parker, M.-Preneel, B.-Rijmen, V.-Robshaw, M.: The eSTREAM Portfolio, Project eSTREAM web page, 2008], because its performance was not so perfect when comparing with other finalist. Also there is a security issue with a high correlation in the used S-Box, which some effective distinguishers exploit. In this paper, a practical demonstration of the distinguishing attack against the smaller version of the cipher is introduced. In our experiments, we have at disposal a machine with four cores (Intel® CoreTM Quad @ 2.66 GHz) and single attack lasts about 6 days. We performed successful practical experiments and our results demonstrate that the distingushing attack against the smaller version is working.
Towards Provable Security of Rijndael-Like Spn Ciphers Against Differential Attacks
Authors: Ruzhentsev Victor , Dolgov Victor 
Published: April 2013

ABSTRACT
The strength of Rijndael-like ciphers to the truncated differential attack is considered. Theorems about the absence of effective truncated (byte) differential characteristics and effective truncated (byte) differentials for ciphers with sufficient number of rounds are proved.