bluuebunny/crossref_metadata_2025_split huggingface dataset:
Examination of the constraints and facilitators to physical activity participation of individuals<p>Bireylerin fiziksel aktiviteye katılımını engelleyen ve kolaylaştıran faktörlerin belirlenmesi
Authors: Sarol Halil 
Published: December 2017

This study aims to determine the factors which constraint and facilitate individuals’ participation to physical activities. Sample group of the study consist of 691 individuals who live in different districts of Ankara and chosen by random sampling method. In the study “Leisure Constraints Scale-18” is used to determine the factors that constraint individuals’ participation to physical activities and “Leisure Facilitators Scale” to determine the factors that facilitate the individuals’ participation to physical activities. As a statistical method frequency, arithmetic mean, standard deviation, ANOVA, single factorial MANOVA, and Pearson Correlation tests were used. According to the analysis results, it is determined that “Intrinsic Facilitators” is a factor that affects women to participate physical activity and has a higher role in constraining single participants to join physical activity. Furthermore, it is revealed that perceptions of constraint decrease with the increase in participants’ level of income. As a result, the most important factor that constraints individuals’ participation to physical activity is “Structural Constraints” and the most important factor that facilitates is “Intrapersonal Facilitators”. Extended English abstract is in the end of Full Text PDF (TURKISH) file. ÖzetBu çalışmanın amacı bireylerin fiziksel aktivitelere katılımını engelleyen/kısıtlayan ve kolaylaştıran faktörleri belirlemektir. Çalışmanın örneklem grubunu Ankara ilindeki farklı ilçelerde ikamet eden ve basit tesadüfi örneklem yöntemi ile seçilen 691 birey oluşturmaktadır. Çalışmada bireylerin fiziksel aktivitelere katılımını engelleyen/kısıtlayan faktörleri belirlemek için “Boş Zaman Engelleri Ölçeği-18” ve kolaylaştıran faktörlerin belirlenmesi için “Serbest Zaman Kolaylaştırıcıları Ölçeği” kullanılmıştır. Elde edilen verilerin değerlendirilmesinde; frekans, aritmetik ortalama, standart sapma; ANOVA, tek faktörlü MANOVA ve Pearson Korelasyon testleri kullanılmıştır. Analiz sonuçlarına göre, “Yapısal Kolaylaştırıcılar” ın kadınların fiziksel aktiviteye katılımlarına etki eden önemli bir unsur olduğu ve bekâr katılımcılar için fiziksel aktiviteye katılımı engellemedeki rolünün daha yüksek olduğu tespit edilmiştir. Ayrıca katılımcıların gelir düzeylerindeki artışla birlikte engel algılarının azaldığı da bulunmuştur. Sonuç olarak, bireylerin fiziksel aktiviteye katılımını engelleyen en önemli unsurun “Yapısal Engeller”, katılımlarını kolaylaştıran en önemli faktörün ise “Bireysel Kolaylaştırıcılar” olduğu ifade edilebilir.
On the nomenclature of fossil Aspleniopteris, Carpinicarpus, Comptonia, Comptoniphyllum and Dryandrophyllum (Myricaceae)
Authors: Doweld Alexander B. 
Published: December 2017

AbstractComptonia comptoniifolia(Brongn.) Doweld, comb. nov., based on the recently rediscoveredPhyllites comptoniifoliusBrongn., is reinstated based upon priority as the earliest validly published species name in place of the previously incorrectly usedC. acutilobaBrongn. andC. difformis(Sternb.) E.W. Berry (Aspleniopteris difformisSternb.;Asplenium difformeSternb. non R. Br.).Comptonia japonicaKrysht. is shown to be the earliest validly published name instead of the previously widely acceptedComptoniphyllum naumanniiNath. A new genus,Paracomptoniagen. nov., is proposed instead of the previously invalidly publishedDryandrophyllumVelen., being based on the formerly segregatedComptoniasubg.AvushiaZhilin, with transference of two CretaceousDryandraspecies,D. cretacea, andD. yakovlevii, and one Palaeogene species,D. schrankii, intoParacomptonia. The aberrant fossil species of Western SiberianComptonia, based on fruit endocarps with a superficial resemblance to the extant genus, are reclassified and transferred into the recircumscribed and amplified distinct fossil genusCarpinicarpus, which is reinstated as a validly published genus instead of the anomalousComptoniasection †ComptoniellaP.I. Dorof.:Carpinicarpus debilis(V.P. Nikit.) Doweld, comb. nov.,C. dorofeevii(V.P. Nikit.) Doweld, comb. nov.,C. gorbunovii(P.I. Dorof.) Doweld, comb. nov., andC. tymensis(P.I. Dorof.) Doweld, comb. nov.Comptonia japonicais neotypified;Paracomptonia cretacea(Velen.) Doweld comb. nov.,P. yakovlevii(Palib.) Doweld, comb. nov. andP. schrankii(Sternb.) Doweld,comb. nov. are lectotypified for the first time.
A Lyapunov functional for a system with both lumped and distributed delay
Authors: Duda Jozef 
Published: December 2017

AbstractIn the paper construction of a Lyapunov functional for time delay system with both lumped and distributed delay is presented. The Lyapunov functional is determined by means of the Lyapunov matrix. The method of determination of the Lyapunov matrix for time delay system with both lumped and distributed delay is presented. It is given the example illustrating the method.
On dynamically consistent Jacobian inverse for non-holonomic robotic systems
Authors: Ratajczak Joanna , Tchoń Krzysztof 
Published: December 2017

AbstractThis paper presents the dynamically consistent Jacobian inverse for non-holonomic robotic system, and its application to solving the motion planning problem. The system’s kinematics are represented by a driftless control system, and defined in terms of its input-output map in accordance with the endogenous configuration space approach. The dynamically consistent Jacobian inverse (DCJI) has been introduced by means of a Riemannian metric in the endogenous configuration space, exploiting the reduced inertia matrix of the system’s dynamics. The consistency condition is formulated as the commutativity property of a diagram of maps. Singular configurations of DCJI are studied, and shown to coincide with the kinematic singularities. A parametric form of DCJI is derived, and used for solving example motion planning problems for the trident snake mobile robot. Some advantages in performance of DCJI in comparison to the Jacobian pseudoinverse are discovered.
Geospatial Analysis of Changes in Vegetation Cover over Nigeria
Authors: Fashae Olutoyin , Olusola Adeyemi , Adedeji Oluwatola 
Published: December 2017

Abstract
Vegetation cover over Nigeria has been on the decrease recently, hence the need for adequate monitoring using geo-information technology. This study examined the spatio-temporal variation of vegetation cover over Nigeria for thirty years with a view to developing a strategy for enhancing environmental sustainability. In order to predict the spatial extent of vegetation cover in 2030, the study utilised satellite images from between 1981 and 2010 using the Normalised Difference Vegetation Index (NDVI) coupled with cellular automata and Markov chain techniques in ArcGIS 10.3. The results showed that dense vegetal areas decreased in area from 358,534.2 km2 in 1981 to 207,812 km2 in 2010, while non-vegetal areas increased from 312,640.8 km2 in 1981 to 474,436.4 km2 in 2010 with a predicted increase to 501,504.9 km2 by 2030, i.e. an increase of about 27,068.4 km2 between 2010 and 2030. The study concluded that geoinformation techniques are effective in monitoring long-term intra- and inter-annual variability of vegetation and also useful in developing sustainable strategies for combating ecological hazards.
Morphology and surficial sediments of the Waldemar River confined outwash fan (Kaffiøyra, Svalbard)
Authors: Weckwerth Piotr , Greń Katarzyna , Sobota Ireneusz 
Published: December 2017

AbstractThe development and evolution of confined outwash fans in high Arctic regions depend on the rate of meltwater discharge, which is directly related to the glacier ablation rate, in turnassociated with climate conditions. Other factors controlling outwash fan morphology (e.g. depth and width of distributive channels) are processes of fluvial erosion, and the transport and deposition of sediments. These factors have not previously been considered together in relation to the evolution of the confined outwash fans which are commonly incised into the top of permafrost in the forefields of subpolar glaciers and in mountains in high Arctic regions. Morphology and surficial sediments of a confined outwash fan of the Waldemar River (NW Spitsbergen, Svalbard) were analysed on the basis of geomorphological and sedimentological studies. The results of our investigations show multiple relations between the depth and width of distributary channels, fan slope and textural features of glaciofluvial surficial sediments supplied into the fluvial system from the glacier and from lateral fluvial erosion of permafrost
Quaternary salts derived from 3-substituted quinuclidine as potential antioxidative and antimicrobial agents
Authors: Odžak Renata , Šprung Matilda , Soldo Barbara , Skočibušić Mirjana , Gudelj Martina , Muić Anita , Primožič Ines 
Published: December 2017

AbstractTwo series of novel ammonium salts containing the quinuclidine moiety were prepared in order to evaluate their antioxidative, antibacterial and antifungal potential. The synthesized homologues of 3-hydroxy (QOH) and 3-chloroquinuclidine (QCl) with the different N-benzyl substituents at the para-position (bromo, chloro or nitro group) were obtained in very good yields and characterized by IR and NMR spectroscopies and elemental analysis. All compounds were tested for antioxidative activity using the oxygen radical absorbance capacity (ORAC) assay and among tested samples, N-p-nitrobenzyl-3-hydroxyquinuclidinium bromide (QOH-4) exhibited the highest antioxidative potential (293.80 nmol (TE) mL-1), which was further investigated by the DNA nicking assay. The biological activity of selected compounds was evaluated by measuring the zone of inhibition and by determining the minimal inhibitory concentration (MIC) against three Gram-positive bacteria (B. cereus, E. faecalis and S. aureus), three Gram-negative bacteria (E. coli, P. aeruginosa and C. sakazakii) and three fungi species (C. albicans, A. niger and P. notatum). The bioactivity assay showed that some newly synthetized quaternary quinuclidinium compounds display a comparable or even better antibacterial and antifungal activity than the reference drugs such as gentamicin (GEN), cefotaxime (CTX) and amphotericin B (AMPHB). Among the tested compounds, N-p-chlorobenzyl-3-hydroxyquinuclidinium bromide (QOH-3) exhibited a considerable antibacterial efficiency against P. aeruginosa (MIC=0.39 µg mL-1) and QOH-4 displayed a potent antifungal activity against C. albicans (MIC=1.56 µg mL-1).
An Elementary Method of Deriving A Posteriori Error Equalities and Estimates for Linear Partial Differential Equations
Authors: Anjam Immanuel , Pauly Dirk 
Published: December 2017

Abstract
In this paper we present a simple method of deriving a posteriori error equalities and estimates
for linear elliptic and parabolic partial differential equations.
The error is measured in a combined norm taking into account both the primal and dual variables.
We work only on the continuous (often called functional) level
and do not suppose any specific properties of numerical methods and discretizations.
Detection of future changes in seasonality in extreme short-term rainfall in selected stations of Slovakia
Authors: Vasilaki Marianna , Kohnová Silvia , Hanel Martin , Szolgay Ján , Hlavčová Kamila , Loukas Athanasios , Rončák Peter 
Published: December 2017

AbstractThis paper analyses the projected changes in short-term rainfall events during the warm season (April–October) in an ensemble of 30 regional climate model (RCM) simulations. The seasonality analysis was done for the Hurbanovo, Bratislava, Oravska Lesna, and Myjava stations in Slovakia. The characteristics of maximum rainfall events were analysed for two scenario periods, one past and one future (1960–2000 and 2070–2100) and compared to the characteristics of the actual observed events. The main findings from the analysis show that short-term events of 60 minutes appear to have stronger seasonality than daily events that show a rather high variability. The seasonality concentration index calculated for the 60 min events averages to 0.77, while that of daily events averaged to 0.65. The differences between the dates of the occurrence of past and future events are not significant in the lowland areas, while in the mountainous areas the future events have been found to occur earlier than past ones.
Gauge Integral
Authors: Coghetto Roland 
Published: December 2017

Summary
Some authors have formalized the integral in the Mizar Mathematical Library (MML). The first article in a series on the Darboux/Riemann integral was written by Noboru Endou and Artur Korniłowicz: [6]. The Lebesgue integral was formalized a little later [13] and recently the integral of Riemann-Stieltjes was introduced in the MML by Keiko Narita, Kazuhisa Nakasho and Yasunari Shidama [12].
A presentation of definitions of integrals in other proof assistants or proof checkers (ACL2, COQ, Isabelle/HOL, HOL4, HOL Light, PVS, ProofPower) may be found in [10] and [4].
Using the Mizar system [1], we define the Gauge integral (Henstock-Kurzweil) of a real-valued function on a real interval [a, b] (see [2], [3], [15], [14], [11]). In the next section we formalize that the Henstock-Kurzweil integral is linear.
In the last section, we verified that a real-valued bounded integrable (in sense Darboux/Riemann [6, 7, 8]) function over a interval a, b is Gauge integrable.
Note that, in accordance with the possibilities of the MML [9], we reuse a large part of demonstrations already present in another article. Instead of rewriting the proof already contained in [7] (MML Version: 5.42.1290), we slightly modified this article in order to use directly the expected results.
Von Neumann algebras, L-algebras, Baer *-monoids, and Garside groups
Authors: Rump Wolfgang 
Published: December 2017

Abstract
It is shown that the projection lattice of a
von Neumann algebra, or more generally every orthomodular lattice X, admits
a natural embedding into a group

G
⁢

(
X
)

{G(X)}

with a lattice ordering so that

G
⁢

(
X
)

{G(X)}

determines X up to isomorphism. The embedding

X
↪

G
⁢

(
X
)

{X\hookrightarrow G(X)}

appears to be a
universal (non-commutative) group-valued measure on X, while states of X
turn into real-valued group homomorphisms on

G
⁢

(
X
)

{G(X)}

. The existence of
completions is characterized by a
generalized archimedean property which simultaneously applies to X and

G
⁢

(
X
)

{G(X)}

. By an extension of Foulis’ coordinatization theorem, the negative cone
of

G
⁢

(
X
)

{G(X)}

is shown to be the initial object among generalized
Baer

∗

{{}^{\ast}}

-semigroups. For finite X, the correspondence between X and

G
⁢

(
X
)

{G(X)}

provides a new class of Garside groups.
Dielectric Properties of Blackberries as Related to Microwave Drying Control
Authors: Song Chunfang , Sang Tian , Chen Haiying , Zhenfeng Li , Jing Li 
Published: December 2017

Abstract
The dielectric properties of blackberry samples with a 20.0–80.0 % w.b (web basis) moisture content were determined with a network analyzer and an open-ended coaxial-line probe over a frequency range from 5 to 3000 MHz and a temperature range from 20 to 100 °C. The results showed that the dielectric constant decreased with increasing temperature but increased with increasing moisture content; however, the loss factor increased with increasing temperature and moisture content. The dielectric constant and the loss factor decreased with increasing frequency. The penetration depth decreased with increasing temperature, frequency and moisture content. A large penetration depth at 915 MHz may provide practical large-scale dielectric drying for blackberries. The dielectric constants and loss factors for blackberry by combining the above mathematical model and temperature and moisture of the sample in the microwave drying process were used to analyze and control blackberry drying technology.
Operating environment threats influence on the maritime ferry technical system safety – the numerical approach
Authors: Kuligowska Ewa 
Published: December 2017

Abstract
The material given in this paper delivers the procedure for numerical approach that allows finding the main practically important safety characteristics of the complex technical systems at the variable operation conditions including operating environment threats. The obtained results are applied to the safety evaluation of the maritime ferry technical system. It is assumed that the conditional safety functions are different at various operation states and have the exponential forms. Using the procedure and the program written in Mathematica, the considered maritime ferry technical system main characteristics including: the conditional and the unconditional expected values and standard deviations of the system lifetimes, the unconditional safety function and the risk function are determined.
Influence of flooding compartments on the stability safety of the training warship
Authors: Mironiuk Waldemar 
Published: December 2017

Abstract
The paper presents computational stability issues with a flooded ship compartment situated on boat deck. As the main criteria for stability of the warship, calculation algorithm of metacentric height and righting levers have been defined, with a free surface effect taken into account. Based on the results of the calculations presented in tabular and graphical forms, suitable conclusions have been drawn up.
Integrated model of port oil piping transportation system safety including operating environment threats
Authors: Kołowrocki Krzysztof , Kuligowska Ewa , Soszyńska-Budny Joanna 
Published: December 2017

Abstract
The paper presents an integrated general model of complex technical system, linking its multistate safety model and the model of its operation process including operating environment threats and considering variable at different operation states its safety structures and its components safety parameters. Under the assumption that the system has exponential safety function, the safety characteristics of the port oil piping transportation system are determined.
Reliability analysis of high-speed tracked vehicles in the polish army
Authors: Kończak Jarosław 
Published: December 2017

Abstract
The Polish Armed Forces use tracked vehicles that serve as a core element of the ground combat forces. These vehicles are capable of fighting in all kinds of terrain conditions, in any season of the year. Combat missions are often fought in areas where even no dirt roads are available. The present paper assesses the reliability of tracked vehicles in the context of their irregular operation, as well as service- and maintenance-related vulnerability.
ISO 55001 and difficulties of its implementation in polish enterprises
Authors: Nowakowski Tomasz , Tubis Agnieszka , Werbińska-Wojciechowska Sylwia 
Published: December 2017

Abstract
In the presented paper, authors focus on the issues related to asset management in enterprises. The aim of the article is to present the requirements and standards defined in ISO 55001. Thus, there are presented the basic definitions related to the research area. Later, there are discussed the main guidelines set out in the standard, with taking into consideration e.g. asset management system structure. Moreover, there are defined the basic procedural steps in the process of ISO 55001 standard implementation in enterprises. This gives the possibility for the analysis of ISO 55001 standard possibilities of implementation in Polish enterprises. The article concludes with a summary.
Simulation of automotive starter faults
Authors: Dziubiński Mieczysław , Siemionek Ewa , Plich Mieczysław , Drozd Artur , Toborek Krzysztof 
Published: December 2017

Abstract
The article presents a new diagnostic method of a motor starter based on the analysis of the starter’s power and the Hall effect. Using the Matlab Simulink program the wear and tear impact of the starter sleeves on power characteristics was simulated. For the analysis of the flux propagation and the distribution of magnetic induction for selected states of the wear and tear of the sleeve the QuickField program was used. Within the experimental tests, registration of the distribution of magnetic induction was conducted by the Hall sensor placed in the link slot. The model and the tests made it possible to develop diagnostic patterns within the OBD diagnostics.
The change of quantity and quality outflow of water in Ochożanka River basin
Authors: Grzywna Antoni 
Published: December 2017

AbstractThe aim of this research work is to evaluate changes in the quantities of water and chemical parameters of outflow water from the forest catchment. Research was carried over a hydrological five-year period in the Ochożanka River basin (Western Polesie). The structure of the catchment area of 33.1 km2 is dominated by forestland constituting 81% of the area. During this period the precipitation amounted to 627 mm, which was 100 mm higher than the multi-year average. Precipitation of the summer half-year was almost three times higher than in the winter half-year. Data analysis shows that the average unit outflow from the catchment unit was 3.0 dm3·s−1·km−2. Outflow in the winter half-year was 52% higher than in the summer half-year. The waters of the river are used, they are usually characterized by good chemical status. In case 30% samples concentration of Kjeldahl nitrogen (>2 mg N·dm−3), total phosphorus (>0.4 mg P·dm−3) exceed the limit values for second class quality water. Indicators of oxygen conditions reach medium and high values. In spring, it happens that the limits are exceeded for second class water quality. These values are respectively COD > 20 mg O2·dm−3 and oxygen <5 mg O2·dm−3. An important issue related to the value parameters is the seasonal variability of their concentration in water outflow from the catchment. The maximum value chemical parameters are recorded in March, when the occurred largest outflows water.
Methodology of assessing the relative environmental validity of developing drainage and irrigation on a regional scale
Authors: Kaca Edmund 
Published: December 2017

Abstract
The topic of the research is a specific feature of the region within a group of regions – the relative environmental validity of developing drainage and irrigation within it; relative, as it refers to the environmental validity of developing drainage and irrigation in regions belonging to a selected group of regions.
The research revolves around the issue of the methodology for assessing (quantifying) the relative environmental validity of developing drainage and irrigation in a region (province). Developing such a methodology and presenting an example of its application is, thus, the aim of this work.
The methodology comprises two parts. The first of them pertains to generic, e.g.: climate, soil-water, hydrological, etc. quantification of the relative environmental validity of developing drainage and irrigation in regions (provinces), while the second – the synthesis of these partial generic validities into one indicator – the relative environmental validity of developing drainage and irrigation in a region (province). When realizing the first part, indicators characterizing the partial validities for developing drainage and irrigation in subregions (districts) are used, whereas in the second – a fragment of the ELECTRE III multi-criteria dialogue method of ordering of variants.
Based on the proposed methodology, the individual provinces of Poland were classified. The classification was carried out based on such generic validities for the development of irrigation as climatic, soil-water, hydrological and environmental-ecological validity. According to this classification, Opolskie Province is characterized by the strongest environmental validity of developing irrigation, whereas Małopolskie Province – the lowest.
Preliminarily analyses confirmed the accuracy and reliability of the proposed methodology for assessing the relative environmental validity of developing drainage and irrigation in the provinces.