bluuebunny/crossref_metadata_2025_split huggingface dataset:
Histological organization and microarchitecture of various cells lining the olfactory epithelium of Rita rita (Hamilton, 1822) (Siluriformes: Bagridae)
Authors: Kumar Ghosh Saroj , Chakrabarti Padmanabha 
Published: April 2013

Abstract
Rita rita is a carnivorous, bottom dwelling catfish inhabits in muddy dirty water and depends on olfactory sensation for procurement of food. The structural organization and function ofvarious cells lining its olfactory epithelium have been investigated by light and scanning electron microscopy. The elongated olfactory organ consists of 64-68 primary lamellae arising from a narrow median raphe. Sen­sory as well as non-sensory regions are distinctly oriented on each olfactory lamella. The sensory epithe­lium occupies the apical tongue-shaped area and basal part of the olfactory lamellae, whereas the middle part is covered with non-sensory epithelium. The sensory epithelium is composed of 2 types of dendrites of receptor cells (either ciliated or microvillous), labyrinth cells, and a large number of flagellated suppor­ting cells. The non-sensory epithelium is made up of stratified epithelial cells having a different pattern of microridges and mucous cells. Variations in the cellular orientation of the various cells on the olfactory epithelium have been correlated with the functional views of the fish concerned.
The Middle English Suffix -Ish: Reasons for Decline in Productivity
Authors: Ciszek Ewa 
Published: April 2013

Abstract
The aim of the present paper is to investigate the reasons for the significant decline in both the frequency and productivity of the suffix -ish in Middle English. The major factors responsible seem to be the growing popularity of the of + Noun phrases as well as the competition among -ish and other suffixes. The analysis will be preceded with the introduction of some essential facts concerning the semantic development and productivity of the OE suffix -isc in Middle English.
Types of Lexical Complexity in English: Syntactic Categories and the Lexicon
Authors: Anderson John 
Published: April 2013

Abstract
This study focuses on minimal (non-compound, non-phrasal) signs that are nevertheless internally complex in their syntactic categorization. Sometimes this is signalled by morphology - affixation or internal modification. But there are also conversions. In terms of categorial structure, we can distinguish between absorptions, where the source of the base is associated with a distinct category, and incorporation, where the base is categorially constant. Incorporation is thus typically reflected in inflectional morphology. Absorption may be associated with morphological change or conversion - with retention of the base in a different categorization. But categorial complexity may be nonderived, covert: the categorial complexity of an item is evident only in its syntax and semantics.
On the Sharkovsky’s property of Darboux functions
Authors: Pawlak Ryszard J. 
Published: April 2013

Abstract
Examinations of Sharkovsky’s property for discontinuous functions are usually connected with complex considerations. In this paper we ascertain the relation between two families of functions giving possibility to resolve the question about Sharkovsky’s property of functions belonging to one of those families into examination J1 property of the second of them.
Comparison of Raabe’s and Schlömilch’s tests
Authors: Prus-Wiśniowski Franciszek 
Published: April 2013

Abstract
The exact relationship between the Raabe’s test and Schl¨omilch’s test is described and a useful improved version of the divergence part of these tests is given. Furhter, a more general “continuous” scale of tests is introduced; it includes not only both commonly used versions of Raabe’s test, but also Schl¨omilch’s test.
A note on measure extension problem of ℓ-group-valued measures
Authors: Khurana Surjit Singh 
Published: April 2013

Abstract
For an Abelian, Archimedean Dedekind complete lattice-ordered, weakly σ-distributive group G and an algebra Ƒ
of subsets of a set X, every positive measure μ: Ƒ→G has a unique countably additive (in order convergence) extension to σ-algebra generated by Ƒ.
Period annuli and multiple solutions for two-point BVD
Authors: Atslega Svetlana , Sadyrbaev Felix 
Published: April 2013

Abstract
In this article we consider equations of the type xʺ+g(x) = 0 and xʺ+ƒ(x)xʹ<sup>2</sup> + g(x) = 0. The Neumann boundary value problem is considered. For polynomials f and g we provide the multiplicity results. These results are based on a thorough analysis of a phase plane. The existence of period annuli is concerned.
On hyperbolic contact problems
Authors: Bock Igor , Jarušek Jiří 
Published: April 2013

Abstract
We deal with hyperbolic variational inequalities modeling vibrations of two-dimensional structures with an obstacle. We focus on the plates with moderately large deflections. The nonlinear strain-displacements relations imply nonlinear elliptic parts of differential operators in considered problems.We distinguish two types of problems. In the first case only the deflections are considered with accelerations and the plane displacements are expressed using the Airy stress function. In the case of plane accelerations the full von K´arm´an system consisting of two equations and one variational inequality is considered. The existence of solutions is derived using the penalization method.
On stability in generalized Schinasi’s macroeconomic model under fixed exchange rates
Authors: Makovínyiová Katarína , Zimka Rudolf 
Published: April 2013

Abstract
A nonlinear dynamic macroeconomic model of a small open economy is constructed. The model is based on the IS-LM structure and generalizes the Schinasi’s model of a closed economy. Sufficient conditions for the existence of the equilibrium of the model are found and the question of its stability is analyzed.
Can business cycles arise in a two-regional model with fixed exchange rates?
Authors: Maličká Peter , Zimka Rudolf 
Published: April 2013

Abstract
The two-regional five dimensional model describing the development of income, capital stock and money stock, which was introduced by T. Asada in [A Two-regional Model of Business Cycles with Fixed ExchangeRates: A Kaldorian Approach, Discuss. Paper Ser., No. 44, Chuo University, Tokyo, Japan, 2003] is analysed. Sufficient conditions for the existence of one pair of purely imaginary eigenvalues and three eigenvalues with negative real parts in the linear approximation matrix of the model are found. Theorem on the existence of business cycles is presented.
Phase transition in a system of random sparse Boolean equations
Authors: Schilling Thorsten , Zajac Pavol 
Published: April 2013

ABSTRACT
Many problems, including algebraic cryptanalysis, can be transformed to a problem of solving a (large) system of sparse Boolean equations. In this article we study 2 algorithms that can be used to remove some redundancy from such a system: Agreeing, and Syllogism method. Combined with appropriate guessing strategies, these methods can be used to solve the whole system of equations. We show that a phase transition occurs in the initial reduction of the randomly generated system of equations. When the number of (partial) solutions in each equation of the system is binomially distributed with probability of partial solution p, the number of partial solutions remaining after the initial reduction is very low for p’s below some threshold pt, on the other hand for p > pt the reduction only occurs with a quickly diminishing probability.
Data mining as a tool in privacy-preserving data publishing
Authors: Sramka Michal 
Published: April 2013

ABSTRACTMany databases contain data about individuals that are valuable for research, marketing, and decision making. Sharing or publishing data about individuals is however prone to privacy attacks, breaches, and disclosures. The concern here is about individuals’ privacy-keeping the sensitive information about individuals private to them. Data mining in this setting has been shown to be a powerful tool to breach privacy and make disclosures. In contrast, data mining can be also used in practice to aid data owners in their decision on how to share and publish their databases. We present and discuss the role and uses of data mining in these scenarios and also briefly discuss other approaches to private data analysis.
On a family of preimage-resistant functions
Authors: Bérczes Attila , Folláth János , Pethő Attila 
Published: April 2013

AbstractIn the present paper we define a new hash function, based on inhomogeneous polynomials. First we define a large family of polynomials over finite fields and we prove that the members of this family are nearly permutational polynomials. Then we define a subfamily of the above family, such that the elements in the subfamily are easy to evaluate. We prove that (working in a large enough finite field) finding a preimage by chance of such a function is computationally infeasible, and we mention that methods for solving the equation corresponding to the preimage problem for such polynomials are also out of reach.
Security of signature schemes in the presence of key-dependent messages
Authors: González Muñiz Madeline , Steinwndt Rainer 
Published: April 2013

Abstract
In recent years, quite some progress has been made in understand- ing the security of encryption schemes in the presence of key-dependent plaintexts. Here, we motivate and explore the security of a setting, where an adversary against a signature scheme can access signatures on key-dependent messages.
We propose a way to formalize the security of signature schemes in the pres- ence of key-dependent signatures (KDS). It turns out that the situation is quite different from key-dependent encryption: already to achieve KDS-security under non-adaptive chosen message attacks, the use of a stateful signing algorithm is inevitable-even in the random oracle model. After discussing the connection be- tween key-dependent signing and forward security, we present a compiler to lift any EUF-CMA secure one-time signature scheme to a forward secure signature scheme offering KDS-CMA security.
Asymptotic estimate for differential equation with power coefficients and power delays
Authors: Kundrát Petr 
Published: April 2013

AbstractThe paper analyzes the asymptotic bounds of solutions of differential equation with power coefficients, power delays and a forcing term in the form, where a0is a negative real, λ0= 1 and. Some additional assumptions on power coefficients and a forcing term f(t) are considered to obtain an asymptotic estimate for solutions of the studied differential equation. The application of the result is illustrated by several examples.
On the bifurcation of a torus in a small open economy model
Authors: Makovínyiová Katarína , Zimka Rudolf 
Published: April 2013

Abstract
A four-dimensional macroeconomic model of a small open economy under fixed exchange rates is investigated. The model describes the development of national income, capital stock, interest rate and money stock. Sufficient conditions for the existence of an invariant torus are given. A numerical example illustrating the gained results is presented.
Hardware optimizations of stream cipher rabbit
Authors: Tomecek Jozef 
Published: April 2013

ABSTRACT
Stream ciphers form part of cryptographic primitives focused on privacy. Synchronous, symmetric and software-oriented stream cipher Rabbit is member of final portfolio of European Union's eStream project. Although it was designed to perform well in software, employed operations seem to compute effi­ciently in hardware. 128-bit security, with no known security weaknesses is claimed by Rabbit's designers. Since hardware performance of Rabbit was only estimated in the proposal of algorithm, comparison of direct and optimized FPGA im­plementations of Rabbit stream cipher is presented, identifying algorithm bot­tlenecks, discussing optimization techniques applied to algorithm computations, along with key area/time trade-offs.
On parallelism of regression lines
Authors: Rublík František 
Published: April 2013

ABSTRACT
Testing of parallelism of regression lines is discussed and the classical F-test is compared by means of simulations with a rank test computed by means of results of Sen’s 1969 AMS paper. A rank based multiple comparisons rule for detecting regression lines with different slopes is constructed and asymptotic distribution of the underlying statistic is derived. This rule is compared by means of simulations with the rule derived from the assumption that the random fluctuations are Gaussian.
Ventilator-associated pneumonias in children ( ii ) - prophylaxis and treatment
Authors: Shmilev Tonyo Il. , Yankov Ivan V. 
Published: April 2013

ABSTRACT
Ventilator-associated pneumonia (VAP) is the second most common nosocomial infection among children treated in intensive care units. The risk factors for developing this condition are generated by the patient’s bedside conditions, the equipment used and the specifi c treatment administered to the child. Prophylaxis of VAP should necessarily include all measures that have been proven to be effi cient in this respect such as rigorous hygiene control of hands and protective clothing of attending staff, changing breathing circuits of ventilators only if they malfunction or if they are visibly contaminated, preference of orotracheal intubation (instead of nasotracheal intubation) and use of endotracheal tubes with dorsal lumens to allow respiratory secretions to drain, and introduction of a uniform approach to patient care and staff training. Prophylaxis of the microbial colonization in children by antibiotics does not reduce the incidence of VAP-causing poly-resistant bacteria. Therapeutic management includes early initiation of broad spectrum empirical antibiotic therapy, the right choice of antibiotic requiring regular monitoring and good knowledge of the antibiotics sensitivity of the most common microbial isolates in the ward.
Cholestatic syndrome in viral hepatitis A
Authors: Petrov Andrey I. , Vatev Nikolay T. , Atanasova Maria V. 
Published: April 2013

ABSTRACT
AIM: To study the cholestatic forms of viral hepatitis A that are described as unusual and very rare, but that are of great signifi cance because of their severe course and high morbidity rate.
MATERIAL AND METHODS: We describe herein 17 cases of hepatitis A virus (HAV) infection with pronounced cholestasis treated in the Clinic of Infectious Diseases at St. George University Hospital between 2002 and 2006. They are taken from a contingent of 820 patients we studied in the course of the research: of these 400 were cases of sporadic disease and 420 patients were involved in an epidemic outbreak of the disease. All got this diagnosis based on an anti-HAV/IgM test. Eight parameters were analyzed: age, max TBil, max ALT, ALP, GGT, no urobilinogen in urine, ultrasound monitoring of hepatomegaly, and hospital stay.
RESULTS: The 17 patients we discuss here are 2.07% of the total 820 patients with viral hepatitis A (VHA). In 14 the disease had a cholestatic component; 3 cases were a cholestatic form of the disease. The mean hospital stay was 49.1 ± 11.5 days, the longest - 75 days. The hyperbilirubinemia had high levels at the disease climax - the mean concentration was 356.6 μkmol/l, and remained greater than 150 μkmol/l for more than a month. In 10 patients (58.2%) transaminase activity was over 1400 U/l, (mean 2011 U/l).
CONCLUSION: Viral hepatitis A ran with cholestatic syndrome in 2.07%; 23.5% of these cases were classifi ed as severe forms of the disease and 76.5% - as moderate. This is evinced by the enhanced transaminase activity, the elevated TBil, pronounced intoxication, the adynamia, vomiting, headache, the vertigo, all of these items in the objective severity score system we used.
Size of tumour as a risk factor for malignancy in patients with peripheral pulmonary nodules
Authors: Prisadov Georgi Tz. , Uchikov Angel P. , Welker Kathrin , Wallimann Herbert , Murdzhev Krassimir A. , Uzunova Vanya N. 
Published: April 2013

ABSTRACT
Peripheral pulmonary tumours are often quite difficult to diagnose and treat. Their detection brings immediately the problem of whether clinicians should just wait and observe or operate the patients.
The AIM of this study was to determine if there is a direct correlation between tumour size and the risk for malignancy and whether the tumor size should be considered a risk factor for malignancy.
PATIENTS AND METHODS: Between 1997 and 2009, 145 patients with peripheral pulmonary tumours of less than 3 cm in diameter underwent video-assisted thoracoscopic (VATS) resection for the purpose of histologic examination of the tumor.
RESULTS: The mean age of the patients was 62.60 ± 0.95 years. The youngest patient was 17 years old and the oldest - 82. The study sample included 61 women and 84 men; the men were statistically signifi cantly more than the women (57.3% and 42.07%, respectively) (t = 2.74 , P < 0.01). The total number of patients we operated were 145 with 198 resected tumours. The diameter of the lesions ranged between 0.30 cm and 3 cm (mean 1.41 ± 0.06 cm). We found that 108 (54.55%) of the tumours were malignant, and 90 (45.45%) were benign, the difference between them failing to reach statistical signifi cance (t = 1.82, P > 0.05). The mean size of malignant lesions was statistically signifi cantly greater than that of benign tumours (1.62 ± 0.08 cm vs 1.15 ± 0.06 cm).
CONCLUSION: The results of this study suggest that the bigger the diameter of the nodule, the greater the percentage share of malignant tumours, which means that the size of the tumour is an important risk factor for malignancy.
Reference Values For Forced Expiration Parameters In Bulgarian Children And Adolescents Aged 7 To 18 Years
Authors: Mandadzhieva Stoilka K. , Marinov Blagoi I. , Kostianev Stefan S. 
Published: April 2013

Abstract
INTRODUCTION: A diagnosis of lung function impairment in childhood is highly dependent on the respective reference values. Population differences in the pulmonary function of children have been frequently reported.
The AIM of this study was to derive normal spirometric reference values for Bulgarian children and adolescents and to compare these results with other data set including our own reference equations developed 20 years ago.
MATERIAL AND METHODS: Forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), and parameters of maximum expiratory flow-volume curves were measured in 671 healthy Bulgarian school children (339 males and 332 females) aged 7-18 years. Multiple linear regression analysis was performed for each spirometric parameter against age, height, weight, chest circumferences and fat free mass in both sexes.
RESULTS: Excluding ratios, all measured spirometric parameters increased nonlinearly with age and height, and were significantly higher in boys than girls in adolescence.
Height (H) explained the maximum variance for spirometric parameters and the best-fit regression equation relating functional parameters and body height was a power function (Y = a.Hb). FVC and FEV1 showed close correlations with height (r2 between 0.85 and 0.92), whereas the coefficients of determination for the flows were less close (r2 from 0.85 for PEF to 0.67 for MEF25%; always higher in boys).
CONCLUSIONS: The developed prediction equations can be used in clinical practice. In comparison with reference equations based on European or USA populations, regional reference values are biologically more suitable for the interpretation of spirometric data.
Psychomotor Development After Ganciclovir Selectively Treated Congenital And Perinatal Cytomegalovirus Infection
Authors: Ivanov Ivan S. , Popov Nikolay T. , Moshe Rumyana I. , Chepisheva Elena V. , Geneva Ina E. , Panova Margarita V. , Karparov Alexander A. , Shmilev Tonyo I. , Stefanov Rumen S. , Bosheva Miroslava N. 
Published: April 2013

Abstract
AIM: To study the development of children with selectively treated cytomegalovirus infection.
PATIENTS AND METHODS: We studied prospectively a risk group of 12 children with cytomegalovirus infection. These children were diagnosed by serological screening in the first three months after birth and are defined as congenital and perinatal infections. Thirteen infants with no serological evidence of previous or present cytomegalovirus infection at 4 - 12 months of age were used as controls. Ganciclovir in a dose of 10-15 mg/kg/day for at least 2 weeks followed by 5-7.5 mg/kg/day administered intravenously for at least 2 weeks more was given to 4 children from the risk group with PCR confirmed cytomegalovirus infection: to one with suspected congenital infection that presented with encephalitis, to two children with abnormal auditory evoked potentials (AEPs) and other non-neurological symptoms of a suspected congenital infection, and to one child with proven congenital infection with systemic manifestations. There was no infant with cytomegalic inclusion disease in the study. All other children in the risk group that had clinically manifested infection received isoprinosine in a dose of 50 mg/kg for one month.
RESULTS: Psychomotor development delay at age three was found in two children from the risk group and in one child in the control group. There was no difference between the two groups regarding the frequency of paroxysmal events, sensory deficiency or frequent illnesses.
CONCLUSIONS: The prognosis in cases of cytomegalovirus infection diagnosed at three years of age and treated selectively can be similar to that in infection free 3-year-old children (if there are no cases of CMV inclusion disease).
Stipetum novakii ass. nova – a new association of serpentine rocky grassland vegetation (Halacsyetalia sendtneri) in Serbia
Authors: Kabaš Eva N. , Alegro Antun A. , Kuzmanović Nevena V. , Jakovljević Ksenija M. , Vukojičić Snežana S. , Lakušić Dmitar V. 
Published: April 2013

Abstract
Phytosociological characteristics of grassland communities above serpentines (order Halacsyetalia sendtneri H. Ritter-Studnčka 1970) in Serbia, are analyzed according to Braun-Blanquet methodology. In order to detect the basic floristic differentiation of analyzed communities ordinary correspondence analysiswas applied. Cluster analysiswas also performed to see the structure and separation of the communities based on the floristic composition. In order to determine diagnostic species, fidelity indices with presence/ absence data and the size of all groups standardized to equal size were calculated. The new association Stipetum novakii is described in open rocky serpentine grasslands in Brdjani Gorge.
The Catalogue of Checkered Beetles (Insecta: Coleoptera: Cleridae) from the Scientific Collections of “Grigore Antipa” National Museum Of Natural History Of Bucharest
Authors: Kurzeluk Daniel Kazimir 
Published: April 2013

Abstract
This catalogue presents data on ten Western - Palaearctic Cleridae species of the subfamilies Tillinae and Clerinae preserved in the collections of “Grigore Antipa” National Museum of Natural History of Bucharest.
On the Species of Philonthus Stephens (Coleoptera: Staphylinidae: Staphylininae: Staphylinini: Philonthina) in the Collections of Romanian Natural History Museums
Authors: Stan Melania 
Published: April 2013

Abstract
57 species of the genus Philonthus were identified in the collections of four museums of Romania: Brukenthal National Museum, “Grigore Antipa” National Museum of Natural History, Museum of Natural History of Iaşi and Museum of Oltenia, Craiova. Philonthus wuesthoffi Bernhauer, an alien species from East Palaearctic Region, is a new record for the Romanian fauna. Except for Philonthus pyrenaeus Kiesenwetter, the species treated here are in the Romanian fauna and presented with their distribution maps. An identification key for Romanian Philonthus species found in the studied collections is also provided.