bluuebunny/crossref_metadata_2025 huggingface dataset:
Towards a Legal Framework That Protects Freedom of Expression in Electoral Processes
Authors: Mokhonchuk Bohdan , Romaniuk Pavlo
Published: December 2019

In democratic countries, attention is devoted to the issue of freedom of speech and freedom of expression and the role of public authorities during elections. Today, freedom of speech and freedom of expression are guaranteed at both the international and national levels. The international community has created a significant number of international agreements and acts of “soft law” on standards of freedom of expression. In particular, the Code of Good Practice in Electoral Matters establishes as the first general condition for democratic elections the respect for fundamental human rights, and particularly freedom of expression, assembly and association, without which there can be no true democracy. On the one hand, the problem of ensuring freedom of expression during elections is caused by the wider limits of permissible criticism of candidates and the importance of coverage of the election process. On the other hand, it is caused by restrictions on the conduct of election campaigning and the necessity to provide equal access to the media for the subjects of the electoral process. In this context, it is important to find a balance between the right to free elections, freedom of speech and other rights, freedoms and interests of the subjects of the electoral process. This article researches the modern problems of national legal guarantee of the freedom of speech and the freedom of expression and international electoral standards on the protection of freedom of speech and freedom of expression in the electoral process.
The Impact of Russian Anti-Western Conspiracy Theories on the Status-Related Conflict in Ukraine: The Case of Flight MH17
Authors: Mölder Holger , Sazonov Vladimir
Published: December 2019

The Russian Federation has a wide arsenal of tools at its disposal for conducting information warfare to achieve its strategic objectives in the ongoing status conflict with the West. The active exploitation of conspiracy theories has thrived since pro-Kremlin forces started armed conflict against Ukraine in 2013–2014. This article focuses on the crash of Flight MH17, widely used by the Russian media to fabricate various conspiracy theories which make out that the West and Ukraine are responsible for the disaster. This study examines several Russian outlets and TV channels and concludes that the Russian media often used falsified stories and emotional rhetoric in narratives they spread about the crash of Flight MH17. The narratives used to create these conspiracy theories claim that the incident was a Western provocation attempting to generate hostility towards Russia. In disseminating these kinds of conspiracy theories, the pro-Kremlin media created distrust against the West and the Ukrainian government among a larger audience and produced discomfort and disorientation about Western and Ukrainian news.
Cyber-Attacks and Freedom of Expression: Coercion, Intimidation and Virtual Occupation
Authors: Burton Joe
Published: December 2019

This article explores how cyber-attacks affect freedom of expression. It begins by outlining the literature on cyber coercion and exploring other conceptions of how offensive cyber operations have been used to shape adversary behaviour, including efforts to intimidate through cyberspace, and the concept of ‘cyber swaggering’. The article moves on to explore how cyber-attacks have been used to undermine electoral process, to erode free and fair media reporting, and how manipulation of social media can constitute a ‘virtual infiltration’ and ‘virtual occupation’ of the information domain. The article then explores how cyber-attacks conducted during the conflict in Ukraine have limited or otherwise affected freedom of expression. I argue that the wider effects of cyber operations on political, civil and human rights have been underexplored in the cyber security literature; that cyber-attacks have adversely affected freedom of expression in the conflict in Ukraine and in other political disputes; and that the coercion concept is ill-suited to accounting for the socio-psychological impact of modern cyber operations.
Violations of Freedom of Expression and Freedom of Religion by the Russian Federation as the Occupying Power in Crimea
Authors: Tsybulenko Evhen , Platonova Anastassiya
Published: December 2019

Considering modern weaponization of media and extensive experience of Russia in employing the propaganda machine, further attacks and trespasses against the freedom of expression and freedom of religion in order to suppress dissent in the occupied territory are to be expected. In accordance with the reports of international organizations and non-governmental organizations, the current situation in Crimea after the occupation with regard to human rights protections is concerning. This article will put together the reported events in Crimea and the city of Sevastopol concerning the freedom of expression and freedom of religion in order to demonstrate the gravity of the situation and responsibility of the occupying power.
The Impact of ECHR and the Case-Law of the ECtHR on the Development of the Right to Legal Assistance in International Criminal Courts (ICTY, ICTR, ICC)
Authors: Buromenskyi Mykhailo , Gutnyk Vitalii
Published: December 2019

The European Convention on Human Rights and the case-law of the European Court of Human Rights have a significant impact not only on national legal order but also on international criminal courts. The article is dedicated to analyzing that impact in the context of the right to legal assistance.

We ascertain the purpose of the establishment of international criminal courts, the specificity of the right to legal assistance in the European system of human rights protection, the impact of the European Convention on Human Rights on the drafting of statutes of the international criminal courts and influence of the European Convention on Human Rights and case-law of the European Court of Human Rights on the interpretation of the right to legal assistance in the international criminal courts.

Also the primacy of the right to legal assistance is proved, which is provided in the ECHR to the statutes of international criminal courts. At the same time, the international criminal courts, taking into account the purpose of their establishment and jurisdiction, give additional guarantees of the right to legal assistance.
The Analysis of the Digital Economy and Society Index in the EU
Authors: Stavytskyy Andriy , Kharlamova Ganna , Stoica Eduard Alexandru
Published: December 2019

The paper analyzes the Digital Economy and Society Index (DESI), which characterizes the development of digital economy. Based on the data of 28 European countries for 2013–2018, using the panel regression, we studied the influence of the consumption index growth by the purchasing power parity and unemployment among the active population on the structural units of DESI. It is shown that a 1% increase in the consumption index results in about 0.2 increase in the DESI, and an increase in unemployment by 1% leads to about 0.2 DESI decline. It is also shown that the 98% value of DESI is actually determined by its previous trends, and therefore it is impossible to increase this index rapidly. Some reflections and conclusions are made on the perspective of the developing states, i.e., Ukraine, that is not yet assessed in DESI ranking.
Delegation of State Powers to Local Self-Government Bodies: Foreign Experience and Ukrainian Realities
Authors: Serohina Svitlana , Bodrova Iryna , Novak Anna
Published: December 2019

This article is devoted to the study of the problems of the delegation of state powers to local self-government bodies. The paper reveals the pluralism of approaches to the organization of models of such interaction in the countries where various doctrines of the organization and functioning of local self-government prevail (the state-oriented doctrine, the community-oriented doctrine, and the doctrine of municipal dualism). Using the example of various European states (grouped on the basis of the prevailing doctrines presented above for convenience), we reveal specific schemes for the legal regulation of interaction within such relations, their positive features, and drawbacks. The obtained data presented in a compressed form in the paper also features an in-depth analysis of the constitutional and legal regulation of the delegation of state powers to local governments in Ukraine. An important element of the novelty of the study was the projection of modern Ukrainian problems in the field of delegated powers through the prism of the existing European systems and relevant experience, thereby complementing this study with a comparative dimension.

Conclusions made by the authors feature a set of recommendations based on the conducted comparative research and on formal and logical analysis of compliance of the domestic model of the delegation of powers with the provisions of the European Charter of Local Self-Government. Taking into account the fact that European standards in the sphere of the delegation of powers (depends on the adoption of amendments to the Constitution of Ukraine and the Law ‘On delegation of separate powers of executive authorities to local self-government bodies’) are not yet implemented in Ukraine, we believe that this research will not only be useful in the context of theoretical and scientific research of the issue but also has the potential to contribute to the development and implementation of relevant legislation.
The Features of the System of Normative-Legal Acts of Local Self-Government of Ukraine: A Rejection of the Soviet Union Postulates in Favour of the European Union Values
Authors: Petryshyn Oleh , Petryshyna Maryna , Hyliaka Oleh , Didych Taras
Published: December 2019

In this article, the authors, collaboratively and based on their experience of related research (normative-legal activity of local self-government (Petryshyna, 2011), general theoretical problems of law-making and norm-making (Didych, 2018), problems of reception of foreign experience of reforming local self-government (Petryshyn, 2014), and pressing problems of decentralization reform (Hyliaka, 2015)) investigate the features and the shortcomings of the system of normative-legal acts of local self-government of Ukraine. These include: the problems of the legal status and the nature of the modern system of normative legal acts of local self-government, its normative-legal consolidation; the issues of practical law-making by bodies and officials of local self-government through the prism of the heritage of the Soviet system of local self-government; the shortcomings in the reforms undertaken since independence; the ongoing decentralization and associated reforms as well as existing concepts and plans aimed at the integration of Ukraine into European legal space and the European Union in particular.

The result of the study was the identification of a number of substantiated features of the system and general recommendations aimed at the improvement of the overall state of local self-government and its law-making activity in the context of the current and future related reforms in Ukraine.
Simulation of a Scaled down 250 MWe CFB Boiler Using Computational Particle Fluid Dynamics Numerical Model
Authors: Venkatesan Vidya , Mukundarajan Lakshminarasimhan , Narayanan Anantharaman
Published: December 2019

Eulerian-Eulerian approach and conventional Eulerian-Lagrangian model are computationally exhaustive for modelling circulating fluidized bed (CFB) riser which has wide particle size distribution and billions of particles Alternatively, the relatively recent Eulerian- Lagrangian computational particle fluid dynamics (CPFD) model enables simulation of the CFB system with lesser computational resources. Most of the published studies on CPFD simulations of CFB risers deal with single grate system. The present study aimed to investigate the performance of the CPFD model for predicting solids distribution in a CFB riser with pant-leg structure (dual grate) and characteristics similar to a commercial boiler. Experiments conducted in a scaled down 250 MWe CFB facility according to Glicksman’s simplified similarity laws for fluidized beds were simulated using commercial code Barracuda. The bottom dense bed, upper lean solid phase, increase in bottom bed voidage with increasing fluidizing velocity and reducing solids inventory, decrease in bottom bed solids concentration with decrease in particle size and exchange of solids between the legs typically occurring in a CFB with pant-leg structure were successfully captured by the CPFD calculations. Simulation results showed that the upper solids concentration is hardly influenced by the solids inventory level in line with the experimental observation, therefore the amount of solids inventory can be optimized during actual operation. The predicted pressures varied from the average experimental pressure data within the range –10 to 39 %.
Organizational Climate and Gender Differences in Work Engagement Among Non-Teaching Staff in a Nigerian University
Authors: Akanni Abimbola A.
Published: December 2019

The paper examines the link between organizational climate and work engagement among the non-teaching staff of a Nigerian University. Participants consisted of 229 (F=46.7%; Mean age =45.7) non-teaching staff selected using stratified random sampling technique from non-teaching staff of the institution. Participants completed the Utrecht Work Engagement Scale and Organizational Climate Measure that were subjected to Pearson Product Moment Correlation and t-test analysis. Results revealed that organizational climate is related to work engagement among registry staff. It also showed that female employees were more engaged with their work than their male counterparts. The paper recommends the design of appropriate strategies and interventions to ensure that employees feel more engaged in their work-roles.
Researching Consumer Research. An Analysis of Consumer Researchers in Austria with Some Implications for the Scientific Field and Consumer Policy
Authors: Nessel Sebastian
Published: December 2019

Since over a decade, there are ongoing debates about the relationships between the scientific field of consumer research and the political field of consumer policy. To date, there exist theoretical overviews of the international state of the art in consumer research and its historical developments regarding topics, and theoretical and methodological advancements. There also exist few empirical studies which approached this field through content analysis of scientific articles, case studies or literature reviews. Nonetheless, prior research has yet neglected consumer researchers themselves and, above all, their stances toward consumer policy. To fill this gap, this article seeks to enhance knowledge about consumer researchers by presenting empirical results of a survey among Austrian consumer researchers. In contrast with previous research, this article relates its empirical findings to better understand how consumer research can become a more integrated and institutionalized research area, in Austria and elsewhere. As the results indicate, there are some commonalities in Austrian consumer research which may serve as a fertile ground for a closer integration of the field and which could enhance cooperation between the scientific and the political field. Yet, as this article shows, there also exist some obstacles, which may hinder such efforts. It concludes with some propositions for consumer research as a scientific field and discusses obstacles and prospects of a future collaboration between this scientific field and consumer policy. In doing so, this article seeks to contribute to the debate about a so-called “evidence-based” consumer policy suggesting that consumer policy can draw on a wide array of scientific perspectives and should not restrict itself to behavioural insights alone, a current trend in some European countries and in the European Commission. As will be shown, the Austrian case is furthermore informative to better understand internal and external (political) efforts to foster cooperation within consumer research and the relationship between consumer research and consumer policy.
The Integration of Higher Education Graduates on the Labor Market
Authors: Păcurariu Gabriela
Published: December 2019

The success of higher education graduates’ transition to the labor market is analyzed in this paper. A series of representative factors which influence the success rate on the labor market were analyzed through an exhaustive case study among graduates from West University of Timisoara. The results show a high level of satisfaction amongst graduates, despite the high level (over 40%) of total incongruence (vertical and horizontal) between the degree’s field and the actual workplace. We can also assert that the graduates’ insertion in the labor market is a real success, since most of them are able to get a job in less than 6 months from graduation (58.5%), even more do so 12 months post-graduation (83.9%).
The Emergent Adult: Transition from School to Work
Authors: Raiu Sergiu-Lucian
Published: December 2019

This article approaches the topic of the emerging adulthood with young people in Romania, as well as the beginning of the first work experience. The main aim is to identify the factors of a successful transition from school to independent life. The article examines the social status and the issues the young people in Romania face with regard to the transition from education to employment. The data type longitudinal panel study refers to the cohort of young people born in 1994-1995, the generation which graduated from the 12th or 13th class in 2012. We answer the question „Which are the factors that determine the first work experience for Romanian young people and what does this look like?” Half of the young people have work experience - 50.1%, with 25.2% working at the time they filled in the questionnaires, two years after graduation. Employment is explained to an extent of 1% by gender and area of residence, 4% by factors of social exclusion and 1% by factors related to negative life events. All these factors explain the variance of 6% in the employment of young people. Linear regression analysis (hierarchical) showed that social inclusion factors have the greatest effect on employment, with 4% of employment variance explained by social exclusion factors, while the influence of the demographic variables, factors of social exclusion and factors related to negative life events explain 6% of the youth employment variance.
Tensile Deformation and Work Hardening Behaviour of AISI 431 Martensitic Stainless Steel at Elevated Temperatures
Authors: Samuel E. Isaac , Paulose Neeta , Nandagopal M. , Selvi S. Panneer , Babu S. N. Narendra , Mannan S. L.
Published: December 2019

Tensile deformation and fracture behaviour of AISI 431 martensitic stainless steel, over the temperature range of 300-823 K, has been examined. Yield and ultimate tensile strength values decreased gradually from room temperature to intermediate temperatures, followed by a rapid decrease at high temperatures. At the intermediate temperatures (523-673 K), the steel exhibited jerky/serrated flow and anomalous variations in terms of a plateau in flow stress/strength and work hardening parameters and minima in ductility. These manifestations were identified to be the signatures of dynamic strain ageing, operating at these temperatures. At high temperatures, a rapid decrease in flow stress/strength values and increase in ductility with increasing temperature indicated the dominance of dynamic recovery. The fracture remained transgranular ductile at all temperatures. Work hardening relations that best described the flow behaviour of AISI 431 steel were identified. Variations of the work hardening parameters with temperature were consistent with the variations exhibited by strength and ductility values.
Quid rides?: Targets and referents of RoastMe insults
Authors: Dynel Marta , Poppi Fabio I. M.
Published: December 2019

This article offers a qualitative and quantitative socio-cultural examination of RoastMe, a peculiar humorous practice deployed on Reddit and reposted on various social media. First, RoastMe is characterized from the emic (user) perspective and conceptualized in the light of humor theory (superiority and incongruity approaches). RoastMe consists in some users’ posting pictures of themselves with a view to being roasted, i. e. pelted with jocular insults, by other online community members. Albeit a type of disparagement humor, RoastMe is an innocuous humorous activity enclosed within a humorous frame; it is a form of affiliative humor based on users’ unbounded creativity. Second, this paper reports the findings of a quantitative study on the predominant types of targets/roastees depending on their (lack of) salient features, as well as the source and nature of the jocularly disparaged referents in roasting comments, i. e. the central features that roasters make harmless fun of most often, relative to the different categories of roastees.

Roasting (v.) – To humorously mock or humiliate someone with a well-timed joke, diss or comeback. (…) Hone your roasting skills, meet other roasters, and get yourself roasted! Everybody needs to laugh at themselves! And other people, of course!

(https://www.reddit.com/r/RoastMe/)
Synthesis and Characterization of N- Doped ZnO-γAl2O3 Nanoparticles for Photo-catalytic Application
Authors: Mansouri M. , Hosseinvand A. , Kikhavani T. , Setareshenas N.
Published: December 2019

In this study, photo-catalytic degradation of methyl orange (MO) azo dye was examined by undoped and Ce2O3/ CuO/ N doped ZnO nanoparticles stabilized on γAl2O3. Highest photo-catalytic activity was observed for the N-doped 10 wt. % ZnO-γAl2O3 sample. One of the optimal points with the complete MO decomposition was determined at an initial concentration of 8.25 ppm, pH 3.25, catalyst loading of 0.36 g/L and 12.56 W UV-light irradiation after 120 min. Physical and chemical properties of materials were investigated by X-ray diffraction analysis (XRD), Fourier-transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET) and UV–visible diffuse reflectance spectroscopy (DRS) method. The experimental data were best fitted by a Langmuir-Hinshelwood approach photo-catalysis developed kinetic reaction rate in the form of

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Effectiveness of training program combining chakrayoga and meditation
Authors: Cho Yoon-Ju , Sim Kyo-Lin , Cho Sung-ja , Lee Gyeongran , Jung Il Kyung , Yin Changshik , Kim Hongman , Lee Jung-sup , Ryu Jaehwan , Kim Wan-Suk , Shim Insop
Published: December 2019

Background

This study was designed to examine the effectiveness of program combining chakrayoga and meditation on the physical health and disease-related factors and psychological factors of people.

Methods

Ninety-seven subjects (32–83 years old) who had free from prior experiences in meditation programs or Chakrayoga training courses were assigned to either the experimental group (EXP) (45 subjects; 13 male subjects and 32 female subjects; average age of 60.67 years, SD=11.09 years) or the control group (CONT) of remaining subjects (52 subjects; 14 male subjects and 38 female subjects; average age of 61.58 years, SD=9.70 years). Subjects in the EXP participated in the Chakrayoga Meditation Program for twice a week for 2 h during 6 weeks in each session consisted of 1 h of Chakrayoga and 1 h of meditation. The measurements in this study included the mindfulness, stress response, subjective quality of life, medical symptom checklist, difficulty in emotional regulation and objective of life and sense of control.

Results

Results revealed that participants in the EXP reported significantly more relief of mindfulness, stress response, subjective quality of life and medical symptom checklist than those in the CONT.

Conclusions

These findings provide evidence that the Chakrayoga Meditation Program can help relieve the physical health and disease-related factors and psychological factors.
Study on P2P Service Bearer Method for Passive Optical Network for Long Distance and Wide Access
Authors: Wang Yan , Han Shangya , Qin Panke , Li Yaping , Shen Yanmei
Published: December 2019

For the effective bearer of P2P-type services, a P2P service bearer reorientation method for passive optical network for long-distance wide access based on P2P protocol message and wire-speed message identification is proposed. However, the reorientation method still has the possibility of relocation failure, so it is modified – that is, an improved P2P service bearer reorientation method based on optical line terminal (OLT) and optical network unit (ONU) cooperation. And the tool NS2 is used for network simulation analysis. Through simulation analysis, it is verified that the modified reorientation method improves the data traffic burden at the core network and at the OLT.
Performance Enhancement of Fiber Optic and Optical Wireless Communication Channels by Using Forward Error Correction Codes
Authors: Amiri I. S. , Rashed Ahmed Nabih Zaki , Parvez A.H.M Shahariar , Paul Bikash Kumar , Ahmed Kawsar
Published: December 2019

The study has outlined the different correction codes based optical wireless communication channel and security management in free space optics communication systems. The used codes that are namely forward error correction (FEC) code, Reed Solomon (RS) code, and Redundancy check (RC) code. The output power, maximum Q-parameter coefficient and minimum data error rates are estimated with these codes with variations of input signal power and propagation distances. The performance of optical wireless channel is enhanced with FEC code in compared to other proposed codes under the same operating conditions.
On a Waring-Goldbach problem involving squares and cubes
Authors: Liu Yuhui
Published: December 2019

Let R(n) denote the number of representations of a natural number n as the sum of two squares and four cubes of primes. In this paper, it is proved that the anticipated asymptotic formula for R(n) fails for at most
$\begin{array}{}O(N^{\frac{1}{4} + \varepsilon})\end{array}$ positive integers not exceeding N.
D(n)-quadruples in the ring of integers of ℚ(√2, √3)
Authors: Franušić Zrinka , Jadrijević Borka
Published: December 2019

Let 𝓞𝕂 be the ring of integers of the number field 𝕂 =
$\begin{array}{}
\displaystyle
\mathbb{Q}(\sqrt{2},\sqrt{3})
\end{array}$. A D(n)-quadruple in the ring 𝓞𝕂 is a set of four distinct non-zero elements {z1, z2, z3, z4} ⊂ 𝓞𝕂 with the property that the product of each two distinct elements increased by n is a perfect square in 𝓞𝕂. We show that the set of all n ∈ 𝓞𝕂 such that a D(n)-quadruple in 𝓞𝕂 exists coincides with the set of all integers in 𝕂 that can be represented as a difference of two squares of integers in 𝕂.
Geometry of ℙ2 blown up at seven points
Authors: Ray Nabanita
Published: December 2019

In this paper, we prove that blown up at seven general points admits a conic bundle structure over ℙ1 and it can be embedded as (2, 2) divisor in ℙ1 × ℙ2. Conversely, any smooth surface in the complete linear system |(2, 2)| of ℙ1 × ℙ2 can be obtained as an embedding of blowing up ℙ2 at seven points. We also show that smooth surface linearly equivalent to (2, 2) in ℙ1 × ℙ2 has at most four (−2) curves.
Preservation of Rees exact sequences
Authors: Jafari Morteza , Golchin Akbar , Saany Hossein Mohammadzadeh
Published: December 2019

Yuqun Chen and K. P. Shum in [Rees short exact sequence of S-systems, Semigroup Forum 65 (2002), 141–148] introduced Rees short exact sequence of acts and considered conditions under which a Rees short exact sequence of acts is left and right split, respectively. To our knowledge, conditions under which the induced sequences by functors Hom(RLS, –), Hom(–, RLS) and AS ⊗ S– (where R, S are monoids) are exact, are unknown. This article addresses these conditions. Results are different from that of modules.
Some properties associated to a certain class of starlike functions
Authors: Masih Vali Soltani , Ebadian Ali , Yalçin Sibel
Published: December 2019

Let 𝓐 denote the family of analytic functionsfwithf(0) =f′(0) – 1 = 0, in the open unit disk Δ. We consider a class

$$\begin{array}{} \displaystyle \mathcal{S}^{\ast}_{cs}(\alpha):=\left\{f\in\mathcal{A} : \left(\frac{zf'(z)}{f(z)}-1\right)\prec \frac{z}{1+\left(\alpha-1\right) z-\alpha z^2}, \,\, z\in \Delta\right\}, \end{array}$$

where 0 ≤α≤ 1/2, and ≺ is the subordination relation. The methods and techniques of geometric function theory are used to get characteristics of the functions in this class. Further, the sharp inequality for the logarithmic coefficientsγnoff∈$\begin{array}{} \mathcal{S}^{\ast}_{cs} \end{array}$(α):

$$\begin{array}{} \displaystyle \sum_{n=1}^{\infty}\left|\gamma_n\right|^2 \leq \frac{1}{4\left(1+\alpha\right)^2}\left(\frac{\pi^2}{6}-2 \mathrm{Li}_2\left(-\alpha\right)+ \mathrm{Li}_2\left(\alpha^2\right)\right), \end{array}$$

where Li2denotes the dilogarithm function are investigated.
Asymptotic properties of noncanonical third order differential equations
Authors: Baculíková Blanka
Published: December 2019

The purpose of the paper is to show that noncanonical operator

$$\begin{array}{}
\displaystyle
\mathcal
{L}\,y=\left(r_2(t)\left(r_1(t)y'(t)\right)'\right)'
\end{array}$$

can be easily written in essentially unique canonical form

$$\begin{array}{}
\displaystyle
\mathcal
{L}\,y = q_3(t)\left(q_2(t)\left(q_1(t)\left(q_0(t)y(t)\right)'\right)'\right)'
\end{array}$$

such that

$$\begin{array}{}
\displaystyle
\int\limits^\infty \frac{1}{q_i(s)}\,\text{d}{s}=\infty, \quad i=1,2.
\end{array}$$

The canonical representation is applied for examination of the third order noncanonical equations

$$\begin{array}{}
\displaystyle
\left(r_2(t)\left(r_1(t)y'(t)\right)'\right)'+p(t)y(\tau(t))=0.
\end{array}$$
Existence and regularity results for unilateral problems with degenerate coercivity
Authors: Ayadi Hocine , Souilah Rezak
Published: December 2019

In this paper we prove some existence and regularity results for nonlinear unilateral problems with degenerate coercivity via the penalty method.
Direct and inverse approximation theorems of functions in the Orlicz type spaces 𝓢M
Authors: Chaichenko Stanislav , Shidlich Andrii , Abdullayev Fahreddin
Published: December 2019

In the Orlicz type spaces 𝓢M, we prove direct and inverse approximation theorems in terms of the best approximations of functions and moduli of smoothness of fractional order. We also show the equivalence between moduli of smoothness and PeetreK-functionals in the spaces 𝓢M.
Weakly demicompact linear operators and axiomatic measures of weak noncompactness
Authors: Krichen Bilel , O’Regan Donal
Published: December 2019

In this paper, we study the relationship between the class of weakly demicompact linear operators, introduced in [KRICHEN, B.—O’REGAN, D.: On the class of relatively weakly demicompact nonlinear operators, Fixed Point Theory 19 (2018), 625–630], and measures of weak noncompactness of linear operators with respect to an axiomatic one. Moreover, some Fredholm and perturbation results involving the class of weakly demicompact linear operators are investigated. Our results are then used to investigate the relationship between the relative essential spectrum of the sum of two linear operators and the relative essential spectrum of each of these operators.
Fixed point results for F𝓡-generalized contractive mappings in partial metric spaces
Authors: Altun Ishak , Asim Mohammad , Imdad Mohammad , Alfaqih Waleed M.
Published: December 2019

In this paper, we consider F𝓡-generalized contractivity condition and utilized the same to establish some fixed point results for a self-mapping in partial metric spaces endowed with an amorphous binary relation. Our results generalize several core results of the existing literature. We also furnish some examples to exhibit the utility of our results. Finally, we further deduce fixed point result for cyclic contractions in partial metric spaces.
Einstein-Weyl structures on trans-Sasakian manifolds
Authors: Chen Xiaomin
Published: December 2019

In this article we study Einstein-Weyl structures on a 3-dimensional trans-Sasakian manifoldMof type (α,β). First, we prove that a 3-dimensional trans-Sasakian manifold admitting both Einstein-Weyl structuresW±= (g, ±θ) is Einstein, or is homothetic to a Sasakian manifold ifα≠ 0. Next forβ≠ 0 it is proved thatMis Einstein, or is homothetic to anf-Kenmotsu manifold if it admits an Einstein-Weyl structureW= (g,κη) for some nonzero constantκ. Finally, a classification is obtained when a trans-Sasakian manifold admits a closed Einstein-Weyl structure. Further, ifMis compact we also obtain two corollaries.
∗-Ricci solitons and gradient almost ∗-Ricci solitons on Kenmotsu manifolds
Authors: Venkatesha  , Naik Devaraja Mallesha , Kumara H. Aruna
Published: December 2019

In this paper, we consider *-Ricci soliton in the frame-work of Kenmotsu manifolds. First, we prove that if (M, g) is a Kenmotsu manifold and g is a *-Ricci soliton, then soliton constant λ is zero. For 3-dimensional case, if M admits a *-Ricci soliton, then we show that M is of constant sectional curvature –1. Next, we show that if M admits a *-Ricci soliton whose potential vector field is collinear with the characteristic vector field ξ, then M is Einstein and soliton vector field is equal to ξ. Finally, we prove that if g is a gradient almost *-Ricci soliton, then either M is Einstein or the potential vector field is collinear with the characteristic vector field on an open set of M. We verify our result by constructing examples for both *-Ricci soliton and gradient almost *-Ricci soliton.
A note on the consistency of wavelet estimators in nonparametric regression model under widely orthant dependent random errors
Authors: Ding Liwang , Chen Ping
Published: December 2019

In this paper, we consider the wavelet estimators of a nonparametric regression model based on widely orthant dependent random errors. The moment consistency and the completely consistency for wavelet estimators under some more mild moment conditions are investigated. The results obtained in the paper improve and extend the corresponding ones for dependent random variables. Finally, we provide a numerical simulation to verify the validity of our results.
On adaptivity of wavelet thresholding estimators with negatively super-additive dependent noise
Authors: Yu Yuncai , Liu Xinsheng , Liu Ling , Liu Weisi
Published: December 2019

This paper considers the nonparametric regression model with negatively super-additive dependent (NSD) noise and investigates the convergence rates of thresholding estimators. It is shown that the term-by-term thresholding estimator achieves nearly optimal and the block thresholding estimator attains optimal (or nearly optimal) convergence rates over Besov spaces. Additionally, some numerical simulations are implemented to substantiate the validity and adaptivity of the thresholding estimators with the presence of NSD noise.
Generalized Meir-Keeler type contractions and discontinuity at fixed point II
Authors: Pant Abhijit , Pant R. P. , Rakočević Vladimir , Bisht R. K.
Published: December 2019

This paper is a continuation of [Bisht, R. K.—Rakočević, V.: Generalized Meir-Keeler type contractions and discontinuity at fixed point, Fixed Point Theory 19(1) (2018), 57–64]. We obtain some fixed point theorems under contractive conditions which admit discontinuity at the fixed point. Our results subsume all the known results of similar type, provide new answers to the question of continuity of contractive mappings at their fixed points, and also rectify some recent results by Bisht and Rakočević. Many examples are given to illustrate our results.
Modelling of a microreactor on heterogeneous surface and an influence of microreactor geometry
Authors: Baronas R. , Ivanauskas F. , Kulys J.
Published: December 2019

A model of an action of the amperometric biosensors based on carbon paste electrodes encrusted with single microreactor is analyzed. The model is based on non stationary diffusion equations containing non-linear term related to the enzymatic reaction. The biosensors current, which is a function of the concentration gradient of the reaction product on the electrodes, is used for analyzing of dynamics of the reaction. An influence of a size of microreactor, a geometrical form of microreactor and a position of microreactor on the biosensors action is investigated.
Approximation by mean of the function given by dirichlet series by absolutely convergent Dirichlet series
Authors: Laurinčikas A.
Published: December 2019

It is proved an uniform on compact sets approximation by mean of the general Dirichlet series.
Forecasting bond returns using asymmetric regression and investment management
Authors: Kanapeckas Jonas
Published: December 2019

The first section of this research formulates the forecasting task important for managing investment portfolio as well as discusses certain statistical data. The second section is devoted to potential regressors frequently used to forecast risk premiums of bonds, this section extensively use the ideas presented in article [4]. The third section includes the research of asymmetry of relation between risk premiums and regressors. The fourth section is devoted to the investigation of applicability received results in practice.
Ép és mozgásukban korlátozott kajakos sportolók biomechanikai mozgáselemzése és összehasonlító vizsgálata
Authors: Kertészné Német Bernadett , Terebessy Tamás , Bejek Zoltán
Published: December 2019

Abstract:

Introduction: During kayaking, the whole body works in a perfect harmony. While the trunk is doing a rotation, flexion-extension helps to the upper limb to create a special cyclic paddle. The purpose of this study was to gain a better understanding of the physical disabled (later disabled) person’s kayaking motions and to probe whether there were any significant differences between disabled and non-disabled kayakers with special focus on the use of footrest. We hypothesised significantly different ranges of motion and muscle activity in lower limbs but no significant differences in those of the upper limbs. Aim: Our goal was to know more about the abled and disbled kayaking and compare the athlete’s kayaking movements. Method: Thirteen (n = 13) elite disabled athletes (age range: 18–40 years, height range: 164–194 cm, body mass range:74–93 kg), eleven (n = 11) elite non-disabled athletes (age range: 18–40 years, height range:172–197 cm, body mass range: 72–96 kg) and nine (n = 9) athletes whose movements were artificially limited to imitate disabled conditions(“imitation disabled” group) (age range: 18–40 years, height range: 172–197 cm, body mass range: 72–96 kg) were measured. Weba sport kayak ergometer, surface electromyography (EMG), and a 3-dimensional Vicon (MX T40) camera system were used to record the data, and a combined Matlab and MS Excel system was used to analyse the results. Results: In line with our basic assumption, range of motion of the upper limbs was not significantly different between disabled athletes and non-disabled athletes (p ≥ 0.05). However, muscle activities were significantly different in the disabled group compared to the non-disabled group (p ≤ 0.05). In the disabled group the knee joint and trunk motions and muscle activities were also significantly different compared to those in the non-disabled group (p ≤ 0.05). The differences in performance force applied to both footrests and force were significant (p ≤ 0.05). Discussion: The assumption that shoulder and elbow ranges of motion were not significantly different in disabled athletes compared to non-disabled athletes was proven. However, muscle activities were significantly different in the disabled group. In the disabled group, knee and trunk motions and muscle activities were also significantly different compared to the non-disabled group. Significant differences were found in performance, force and footrest use. Our results proved our assumption that motions and muscle activities of disabled and non-disabled athletes were significantly different. Orv Hetil. 2019; 160(52): 2061–2066.
A multimodális posztoperatív fájdalomcsillapítás szerepe primer csípőízületi arthroplasticában
Authors: Szatmári Attila , Menyhárt Ákos , Antal Imre , Sallai Imre , Holnapy Gergely , Bejek Zoltán , Skaliczki Gábor
Published: December 2019

Abstract:

Introduction: Due to the increasing number of arthroplasties, the number of post-operative hospital days was reduced and the rate of rehabilitation accelerated. For this, proper postoperative analgesia is essential and the multimodal pain relief is an excellent tool. Aim: The aim of our study was to compare postoperative functional results, postoperative pain levels, and opioid analgesic needs of patients who received conventional and novel analgesic treatments. Method: In our prospective study, 81 patients were enrolled who underwent primary hip prosthesis surgery in our institution between February 2017 and January 2018. Of the randomized patients, 38 were in the control group and 43 in the multimodal pain group. We have tested their analgesic needs and the subjective pain levels of patients with the help of the visual analog scale (VAS). Results: Patients receiving multimodal pain relief had significantly lower opioid analgesic requirements and significantly lower VAS values assessed at 6 hours, and 3 and 4 days postoperatively. In addition, the patients in this group stayed in the hospital for a significantly shorter time after surgery. Conclusions: Based on our experience, multimodal pain relief in one-sided primary hip joint arthroplasty significantly reduced the patients’ postoperative subjective pain sensation and pain killer consumptions. Orv Hetil. 2019; 160(52): 2054–2060.
Középső skálába terjedő, temporalis csontból kiinduló koleszteringranuloma
Authors: Jakab-Péter Kinga , Tóth Arnold , Barabás Márta Andrea , Gerlinger Imre , Lujber László
Published: December 2019

Abstract:

The authors present a case report of a patient who was treated conservatively for a non-specific headache for more than a decade, while an arachnoidal cyst in the middle cranial fossa, over the temporal bone tegmen was diagnosed, but ruled out as the cause of the headache. The patient was referred to our ENT department with left, purulent ear discharge. Besides a chronic purulent otitis media, a cholesterol granuloma occupying the antrum, eroding the tegmen of the pyramid bone and penetrating into the middle cranial fossa was diagnosed. Case presentation of a patient with cholesterol granuloma, surgical options, differential diagnostic problems, and a literature review are presented. Tympanoplasty with cortical mastoidectomy was carried out to treat the chronic purulent otitis media, and the cholesterol granuloma was removed during transmastoid craniotomy. The iatrogenic temporal meningo-encephalic tissue herniation was repaired and the bone defect of the tegmen was reconstructed with septal cartilage. The patient’s headache diminished immediately after the surgery. The chronic ear discharge stopped, the cholesterol granuloma was excised completely and the cerebral herniation was repaired successfully. Neither CSF leak, nor further herniation or meningitis were noticed. Two years after the operation the patient is asymptomatic. A large cholesterol granuloma, eroding into the middle cranial fossa can cause serious complications, and needs a high level of attention besides individualized surgical treatment based on the surgeon’s abilities and skills. Orv Hetil. 2019; 160(52): 2067–2072.
Nemi különbségek a dohányzás gyakoriságában hazánkban 2010 és 2018 között
Authors: Kékes Ede , Barna István , Daiki Tenno , Dankovics Gergely
Published: December 2019

Abstract:

Introduction: The harmful effects represent an important public health problem in tha world. Aim: Our aim is to report and compare the results of screenings performed in Hungary’s Comprehensive Health Screening Program 2010–2020–2030 (MÁESZ) with international data. Method: During the 9-year continuous screening, we analyzed the data of 71 922 women and 60 934 men in the 18–80-year-old population and examined the occurrence of regular daily smokers. Data were collected with the help of special screening data sheets. Results: 24.4% of males and 24.2% of females smoked regularly during the 9-year screening period. Between 2012 and 2015, smoking prevalence showed a temporary significant decline, then, from 2016, it started to increase again. The downturn coincided with the opening of national tobacco stores. In men, the proportion of smokers was significantly higher in young adults (18–25 years) than in women. Later in life, the difference leveled off and even between 46–55 years, the prevalence of smoking was greater in women. There is a difference in smoking patterns between the two genders, which is probably related to marriage and motherhood in women. After 56 years, the proportion of smokers in both genders decreased rapidly. The prevalence of smoking in Hungary in all age groups significantly exceeds the European and world average. Transient increases in middle-aged women have also been reported in European surveys. Conclusion: Compared to 2010, the proportion of smokers has decreased in Hungary, but a new surge observed after 2015 is not a positive phenomenon. We find the high proportion of smoking women worrying. Orv Hetil. 2019; 160(52): 2047–2053.
Elizabeth Anscombe and an argument against contraception
Authors: Mccarthy Anthony
Published: December 2019

In the 1960s, before the promulgation of Humanae Vitae, the Catholic philosophers Elizabeth Anscombe and Herbert McCabe OP debated whether there are convincing natural law arguments for the claim that contraception violates an exceptionless moral norm. This article revisits those arguments and critiques McCabe’s approach to natural law, concerned primarily with ‘social sin’ and not simply violations of ‘right reason,’ as one particularly ill-suited to addressing questions in sexual ethics and unable both to distinguish properly between certain forms of sexual wrongdoing and more obviously social sins such as theft, and also to distinguish between ‘natural’ and ‘unnatural’ sexual acts. Anscombe’s views, I argue, are closer to those of Thomas Aquinas and provide reasons for making the distinctions McCabe does not. An argument concerning the nature of the institution of marriage and the effects of non-marital acts on that institution is proposed as a way of strengthening Anscombe’s argument that contraception violates an exceptionless moral norm.
Analiza etyczna fenomenu uczciwości na podstawie powieści Fiodora Dostojewskiego Bracia Karamazow
Authors: Janas Agnieszka
Published: December 2019

W artykule została zastosowana metoda analizy etycznej w celu przedstawienia znaczenia fenomenu uczciwości na przykładzie powieści Fiodora Dostojewskiego Bracia Karamazow. Etyka nikomachejska oraz Etyka wielka Arystotelesa zostały wykorzystane do dokonania oceny etycznej bohaterów powieści i ich działań. Ranga poruszanych przez pisarza problemów umożliwia interpretację dzieła jako powieści – tragedii. W ostatniej części artykułu została przedstawiona charakterystyka jednego z tytułowych bohaterów powieści, Dymitra, z uwzględnieniem cech umożliwiających uznanie go za bohatera tragedii, którego czyny nie wynikają z nikczemności i podłości, ale z powodu „zbłądzenia”. Celem artykułu jest ukazanie analizy etycznej dzieł literackich jako sposobu ­interpretowania i odbioru samego dzieła przez pryzmat ukazanych w nim wartości.