bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Effect of Goal Setting Difficulty on Serving Success in Table Tennis and the Mediating Mechanism of Self-regulation
Authors: Liu Weina , Zhou Chenglin , Ji Liu , Watson Jack 
Published: July 2012

The Effect of Goal Setting Difficulty on Serving Success in Table Tennis and the Mediating Mechanism of Self-regulation
Goal setting difficulty has been shown to contribute to athletic performance (Burton et al., 2000). However, the potential mediating mechanism of goal difficulty on performance is unclear. Therefore, the purpose of this study was to verify the effect of goal setting difficulty on serving success in table tennis, and determine if self-regulation is the mediating variable. The current study used serving success within a one minute period as the task, and the "Athlete's Self-regulation in Motor Learning" as the measurement tool. The experiment was designed as a 3 (serving frequency: 20/min, 23/min, and 26/min) x 2 (serving placement: left "small triangle", and right "small triangle") model. Participants (N = 60) in the current study were students from a physical education school. These participants were randomly assigned into the experimental and control groups. After the intervention, differences in self-regulation (p < 0.001) and serving success (p < 0.05) between the experimental and control groups were significant. For the experimental groups, there was a significant difference in self-regulation (p < 0.001) and serving success (p < 0.05) before and after the experiment. Serving frequency had a main effect on self-regulation (F (5, 24) = 12.398, p < 0.01) and serving success (F (5, 24) = 37.601, p < 0.001). Moderately difficult goal setting contributed to athletic performance. Regression analysis using bootstrapping methods revealed that self-regulation partially mediated the relationship between the two.
High Resolution Noise Radar without Fast ADC
Authors: Lukin Konstantin , Vyplavin Pavlo , Zemlyaniy Oleg , Palamarchuk Volodymyr , Lukin Sergii 
Published: July 2012

High Resolution Noise Radar without Fast ADCConventional digital signal processing scheme in noise radars has certain limitations related to combination of high resolution and high dynamic range. The bandwidth of radar signal defines range resolution of any radar: the wider the spectrum the better the resolution. In noise radar with conventional processing the sounding and reference signals are to be digitized at intermediate frequency band and to be processed digitally. The power spectrum bandwidth of noise signal which can be digitized with ADC depends on its sampling rate. In currently available ADCs the faster is sampling rate the smaller is its depth (number of bits). Depth of the ADC determines relation between the smallest and highest observable signals and thus limits its dynamic range. Actually this is the main bottleneck of high resolution Noise Radars: conventional processing does not enable getting high range resolution and high dynamic range at the same time. In the paper we discuss ways to go around this drawback by changing signal processing ideology in noise radar. We present results of our consideration and design of two types of high resolution Noise Radar which uses slow ADCs: noise radar with digital generation of sounding signal and analog evaluation of cross-correlation and stepped frequency noise radar. We describe main ideas of these radar schemes and results of experimental tests of the approaches.
Trial Results on Bistatic Passive Radar Using Non-Cooperative Pulse Radar as Illuminator of Opportunity
Authors: Samczyński Piotr , Wilkowski Michał , Kulpa Krzysztof 
Published: July 2012

Trial Results on Bistatic Passive Radar Using Non-Cooperative Pulse Radar as Illuminator of Opportunity
The paper presents the concept of passive radar exploiting the active Air Traffic Control (ATC) radar as the source of illumination, and the primary results of the measurement campaign carried out at the DSP Laboratory of the Warsaw University of Technology. The system, built using commercial off the shelf components, was able to detect and track airliners landing at Warsaw airport. To verify the system accuracy the IFF mode S messages were recorded, providing ground truth of the observed planes.
The Artificial Immune System Approach for Smart Air-Conditioning Control
Authors: Chaczko Zenon , Aslanzadeh Shahrzad , Kuleff Jonathan 
Published: July 2012

The Artificial Immune System Approach for Smart Air-Conditioning ControlBiologically inspired computing that looks to nature and biology for inspiration is a revolutionary change to our thinking about solving complex computational problems. It looks into nature and biology for inspiration rather than conventional approaches. The Human Immune System with its complex structure and the capability of performing pattern recognition, self-learning, immune-memory, generation of diversity, noise tolerance, variability, distributed detection and optimisation - is one area that has been of strong interest and inspiration for the last decade. An air conditioning system is one example where immune principles can be applied. This paper describes new computational technique called Artificial Immune System that is based on immune principles and refined for solving engineering problems. The presented system solution applies AIS algorithms to monitor environmental variables in order to determine how best to reach the desired temperature, learn usage patterns and predict usage needs. The aim of this paper is to explore the AIS-based artificial intelligence approach and its impact on energy efficiency. It will examine, if AIS algorithms can be integrated within a Smart Air Conditioning System as well as analyse the impact of such a solution.
Thambema thunderstruckae sp. n., the first record of Thambematidae (Isopoda: Asellota) from the Southern Hemisphere shelf
Authors: Zemko Karol , Kaiser Stefanie 
Published: July 2012

Thambema thunderstruckae sp. n., the first record of Thambematidae (Isopoda: Asellota) from the Southern Hemisphere shelf
A new thambematid species, Thambema thunderstruckae sp. n., is described from King George Island, South Shetland Islands, Antarctic. Specimens of the new species were collected during two Polish Antarctic Expeditions in 1985 and 2007. It is the first record of this family from the Southern Hemisphere. The new species most closely resembles Thambema golanachum Harrison, 1987 and T. fiatum Harrison, 1987 but can be distinguished from both species by the shape of male pleopod 1, the number of claws on pereopods 2-7 and the setation of pereopod 1 and 2 carpus, respectively. A key to all known genera and species in the family Thambematidae is also provided.
Diet of the Lesser Spotted Eagle (Aquila pomarina) in Slovakia
Authors: Dravecký Miroslav , Danko Štefan , Obuch Ján , Kicko Ján , Maderič Boris , Karaska Dušan , Vrána Josef , Šreibr Oldřich , Šotnár Karol , Vrlík Peter , Bohačík Ladislav 
Published: July 2012

Diet of the Lesser Spotted Eagle (Aquila pomarina) in Slovakia
In the period 1964-2007, data on 1472 ex. of prey was acquired from whole Slovakia. It was confirmed that the location of the breeding population on the foothills and mountains of the Carpathian Arc has a cardinal contribution to diet diversity. The breeding sites and hunting-grounds were found from 100 to 1 000 meters above sea level. The dominant part of the diet created mammalian species (88.11 %, 19 species and Sorex sp., Apodemus sp., undetermined Artiodactyla). Birds were less represented but with higher diversity of species (6.25 %, 24 species and Columba sp., undetermined Passeriformes). In comparison with birds, the share of Amphibia, Reptilia and Pisces together (4.89 %, 5 species and Rana sp., Lacerta sp., undetermined Serpentes and Reptilia) was lower. Pisces constituted only 0.007 % with 1 ex. of prey species Cyprinus carpio. Evertebrata constituted 0.75 % and species from orders Orthoptera, Coleoptera, and Diptera were found. The dominant prey of A. pomarina in Slovakia was Microtus arvalis (69.57 %), followed by Arvicola terrestris (5.16 %) and Microtus agrestis (3.94 %) constituting significantly lower proportion. These three species from the category small rodents composed 75.67 % of diet. Less abundant species in range 2.24-1.00 % were Talpa europaea (2.31 %), Rana temporaria (2.24 %), Cricetus cricetus (1.70 %), Phasianus colchicus (1.15 %), and Lepus europaeus (1.09 %). In lesser extent (1.0-0.5 %) also other mammalian species such as Apodemus flavicollis (0.88 %) and Mustela nivalis (0.88 %) were represented. The most frequently encountered birds were Galliformes such as P. colchicus (1.15 %), Gallus gallus domesticus (0.48 %), and Coturnix coturnix (0.54 %). Other more abundant prey bird species were Alauda arvensis (0.48 %), Columba sp. (0.48 %), and Crex crex (0.34 %). From the class Reptilia relatively high share of Anguis fragilis (0.95 %) and Lacerta sp. (0.68 %; most probably Lacerta agilis) were recorded. Other species with representation lower than 0.3 % were a random prey of A. pomarina.
Lesser Spotted Eagle (Aquila pomarina) colour ringing programme and its first results in the period 2000-2008 in Slovakia
Authors: Dravecký Miroslav , Maderič Boris , Šotnár Karol , Danko Štefan , Harvančík Stanislav , Kicko Ján , Karaska Dušan , Vrlík Peter , Vrána Josef , Balla Miloš , Boucný Dušan , Kišac Pavol 
Published: July 2012

Lesser Spotted Eagle (Aquila pomarina) colour ringing programme and its first results in the period 2000-2008 in Slovakia
In Slovakia during 2000-2008, 636 Lesser Spotted Eagles (Aquila pomarina) were marked with readable colour rings with double figure code. This is the highest number of Lesser Spotted Eagles marked in such a way in Europe. From this sample, 621 ind. (97.6 %) were chicks at the nest and 15 ind. (2.4 %) were adult birds which were trapped and consequently ringed. In this period, 2 colour series of rings have been used in Slovakia. In 2000 the ringing started with yellow rings, and up until the end of 2008, 631 ex. (616 young and 15 adults) were ringed. In 2008, the ringing started with light blue series of rings and 5 young at the nest were ringed. In addition to readable rings, aluminium ornithological rings of the Ringing Centres of Czech Republic (NM Praha) and Slovakia (NM Bratislava) have been used. The yellow series was used in fewer numbers also in Germany and Poland for marking the Lesser Spotted Eagle (Aquila pomarina), the Greater Spotted Eagle (Aquila clanga), and eventually their hybrids. In this article the authors reported first observations in Slovakia of such marked Lesser Spotted Eagles in the field. Observed eagles were 1, 2, 4, 5, 7 and 8 years old. Some of them were already breeding and were observed taking care of their chicks.
Colour ringing of the Spotted Eagles (Aquila pomarina, Aquila clanga and their hybrids) in Europe - a review
Authors: Dravecký Miroslav , Sellis Urmas , Bergmanis Ugis , Dombrovski Valery , Lontkowski Jan , Maciorowski Grzegorz , Maderič Boris , Meyburg Bernd-Ulrich , Mizera Tadeusz , Stój Marian , Treinys Rimgaudas , Wójciak Janusz 
Published: July 2012

Colour ringing of the Spotted Eagles (Aquila pomarina, Aquila clanga and their hybrids) in Europe - a review
During the years 2000-2008 1377 Spotted Eagles (SE) (Aquila pomarina, Aquila clanga and their hybrids) have been colour ringed in Europe. Out of these, 1303 (94.6 %) were young birds and 74 (5.4 %) were adults. Out of the total, 1290 (93.7 %) were the Aquila pomarina Lesser Spotted Eagles (LSE) - 1229 (95.3 %) young and 61 (4.7 %) adults, 50 (3.6 %) were the Aquila clanga Greater Spotted Eagles (GSE) - 44 (88.0 %) young and 6 (12.0 %) adults and 37 (2.7 %) were the Aquila pomarina x Aquila clanga hybrids (LSE x GSE) - 30 (81.1 %) young and 7 (18.9 %) adults. With respect to the individual European countries the following SE species and numbers were ringed: Slovakia 636 (46.2 %), Poland 333 (24.2 %), Estonia 153 (11.1 %), Germany 116 (8.4 %), Lithuania 68 (4.9 %), Latvia 45 (3.3 %) and Belarus 26 (1.9 %). In the article authors presents a review on Spotted Eagle colour ringing programmes running in individual European countries.
The diet of the Common Kestrel in the urban environment of the city of Nitra
Authors: Kečkéšová Lucia , Noga Michal 
Published: July 2012

The diet of the Common Kestrel in the urban environment of the city of Nitra
The diet of the urban Common Kestrel population was studied in Nitra during 2003-2005. Totally, 671 prey items were identified by the analysis of pellets and prey remains collected under the nesting sites. Insect, mainly represented by order Coleoptera, was found to be the most abundant prey. Regarding biomass, the Common Vole (Microtus arvalis) was predominated. In comparison with other articles published, the studied sample was rather rich in the Lesser White-toothed Shrew (Crocidura suaveolens) and the House Mouse (Mus cf. musculus).
First breeding of the Imperial Eagle (Aquila heliaca) in the "Borská nížina" lowland (SW Slovakia)
Authors: Mikuš Jaroslav , Noga Michal , Nemček Vladimír 
Published: July 2012

First breeding of the Imperial Eagle (Aquila heliaca) in the "Borská nížina" lowland (SW Slovakia)
In 2007, breeding of the Imperial Eagle in locality "Devínske jazero" lake (near the village of "Vysoká pri Morave", SW Slovakia) was observed. The pair fledged 2 young. This was the first recorded breeding of this species in the "Záhorie" region. The eagles also bred the following year, 2008. During breeding, a change of male occurred so the nest remained unproductive (one fertile egg was found in the nest). Both cases suggest the current trend of occupying new sites in the Southwestern part of its breeding range.
Seasonal changes in food composition of the Barn Owl (Tyto alba) in the northern part of the "Záhorie" region
Authors: Latková Hana 
Published: July 2012

Seasonal changes in food composition of the Barn Owl (Tyto alba) in the northern part of the "Záhorie" region
33 prey species (10 296 individuals) were recovered from pellets of the Barn Owl in northern part of the "Záhorie" region (Western Slovakia) during period 2002-2006. The family Arvicolidae constituted 65.68 % of recoveries, Soricidae 17.86 %, Muridae 16.64 %, Talpidae 0.04 %, Gliridae 0.02 %, Mustelidae 0.02 %, Vespertilionidae 0.04 % and Aves 4.7 %. Microtus arvalis was predominantly represented by 65.2 %. For evaluation of diet data "The marked differences from the mean method" was used. The results of pellet analyses provide, besides information about owl diet, also new data about occurrence and geographical distribution of small mammalian species and importance of predators in agricultural landscape.
Process optimization of nickel extraction from hazardous waste
Authors: Gharabaghi Mahdi , Irannajad Mehdi , Azadmehr Amir Reza , Ejtemaei Majid 
Published: July 2012

Abstract
Zinc plant residue is a hazardous waste which contains high quantity of nickel and other valuable metals. Process parameters such as reaction time, acid concentration, solid-liquid ratio, particle size, stirring speed and temperature for nickel extraction from this waste were optimized using factorial design. Main effects and their interactions were obtained by the analysis of variance ANOVA. Empirical regression model was obtained and used to predict nickel extraction with satisfactory results and to describe the relationship between the predicted results and the experiment results. The important parameters for maximizing nickel extraction were identifi ed to be a leaching time solid-liquid ratio and acid concentration. It was found that above 90% of nickel could be extracted in optimum conditions.
Shifts in mycorrhizal fungi during the evolution of autotrophy to mycoheterotrophy in Cymbidium (Orchidaceae)
Authors: Ogura‐Tsujita Yuki , Yokoyama Jun , Miyoshi Kazumitsu , Yukawa Tomohisa 
Published: July 2012

• Premise of the study: Mycoheterotrophic plants, which completely depend upon mycorrhizal fungi for their nutrient supply, have unusual associations with fungal partners. The processes involved in shifts in fungal associations during cladogenesis of plant partners from autotrophy to mycoheterotrophy have not been demonstrated using a robust phylogenetic framework.• Methods: Consequences of a mycorrhizal shift were examined in Cymbidium (Orchidaceae) using achlorophyllous and sister chlorophyllous species. Fungal associates of the two achlorophyllous mycoheterotrophs (C. macrorhizon and C. aberrans), their close relatives, the chlorophyllous mixotrophs (C. goeringii and C. lancifolium) and an outgroup, the chlorophyllous autotroph C. dayanum, were identified by internal transcribed spacers of the nuclear ribosomal DNA sequences.• Key results: Molecular identification of mycorrhizal fungi revealed: (1) the outgroup autotroph is predominantly dependent on saprobic Tulasnellaceae, (2) the mixotrophs associate with the Tulasnellaceae and ectomycorrhizal groups including the Sebacinales, Russulaceae, Thelephoraceae and Clavulinaceae, and (3) the two mycoheterotrophs are mostly specialized with ectomycorrhizal Sebacinales.• Conclusion: Fungal partners in Cymbidium have shifted from saprobic to ectomycorrhizal fungi via a phase of coexistence of both nutritional types of fungi. These three phases correspond to the evolution from autotrophy to mycoheterotrophy via mixotrophy in Cymbidium. We demonstrate that shifts in mycorrhizal fungi correlate with the evolution of nutritional modes in plants. Furthermore, gradual shifts in fungal partners through a phase of coexistence of different types of mycobionts may play a crucial role in the evolution of mycoheterotrophic plants.
Projections of suitable habitat under climate change scenarios: Implications for trans‐boundary assisted colonization
Authors: Ledig F. Thomas , Rehfeldt Gerald E. , Jaquish Barry 
Published: July 2012

• Premise of the study: Climate change may threaten endemic species with extinction, particularly relicts of the Arcto‐Tertiary Forest, by elimination of their contemporary habitat. Projections of future habitat are necessary to plan for conservation of these species.• Methods: We used spline climatic models and modified Random Forests statistical procedures to predict suitable habitats for Brewer spruce (Picea breweriana), which is endemic to the Klamath Region of California and Oregon. We used three general circulation models and two sets of carbon emission scenarios (optimistic and pessimistic) for future climates.• Key results: Our procedures predicted present occurrence of Brewer spruce perfectly. For the decades 2030, 2060, and 2090, its projected range within the Klamath Region progressively declined, to the point of disappearance in the decade 2090. The climate niche was projected to move north to British Columbia, the Yukon Territory, and southeastern Alaska.• Conclusion: The results emphasize the necessity of assisted colonization and trans‐boundary movement to prevent extinction of Brewer spruce. The projections provide a framework for formulating conservation plans, but planners must also consider regulations regarding international plant transfers.
Poinsettia's wild ancestor in the Mexican dry tropics: Historical, genetic, and environmental evidence
Authors: Trejo Laura , Feria Arroyo Teresa Patricia , Olsen Kenneth M. , Eguiarte Luis E. , Arroyo Baruch , Gruhn Jennifer A. , Olson Mark E. 
Published: July 2012

• Premise of the study: The poinsettia (Euphorbia pulcherrima) is the world's most economically important potted plant, but despite its preeminence it is not clear which wild populations are ancestral to the varieties cultivated around the world. Tradition holds that the U.S. envoy to Mexico J. R. Poinsett collected the progenitors of the over 300 varieties in global cultivation on an 1828 excursion to northern Guerrero State, Mexico. It is unknown whether the contemporary cultivars are descended from plants from Guerrero or whether germplasm from other parts of poinsettia's 2000 km long distribution entered into cultivation during the nearly 200 yr of subsequent poinsettia horticulture.• Methods: To identify the wild populations that likely gave rise to the cultivars and test this historical account, we sequenced plastid and nuclear DNA regions and modeled poinsettia's potential distribution.• Key results: The combination of nuclear and plastid haplotypes characterizing cultivars was found only in northern Guerrero. Distribution modeling indicated that suitable habitat conditions for wild poinsettias are present in this area, consistent with their likely wild status.• Conclusions: Our data pinpoint the area of northern Guerrero as the cultivated poinsettia's probable ancestral region, congruent with the traditional account attributing the original collections to Poinsett. Abundant genetic variation likely offers raw material for improving the many shortcomings of cultivars, including vulnerability to cold, stem breakage, and pathogens such as Pythium and Phytophthora. However, genetic differences between populations make conservation of all of poinsettia's diversity difficult.
Lorsque naissance et mort coïncident en maternité, quel vécu pour les sages-femmes ?
Authors: de Wailly-Galembert Diane , Vernier Dominique , Rossigneux-Delage Pascale , Missonnier Sylvain 
Published: July 2012

Résumé Objectifs : évaluer le retentissement sur les sages-femmes de la prise en charge du deuil périnatal. Méthodologie : étude qualitative menée auprès de sages-femmes des trois niveaux de maternités. Entretiens individuels et focus group. Résultats : la souffrance des sages-femmes augmente avec le manque d’anticipation ou l’accumulation des situations de mort en salle de naissance. Certaines pratiques transgressives feront courir le risque d’une effraction traumatique si l’institution n’assure pas sa fonction contenante. Des mécanismes de défense, individuels et collectifs, leur permettront d’assurer un accompagnement empathique des parents endeuillés. Conclusion : une élaboration des pratiques, associée à une anticipation institutionnelle seront nécessaires, au bénéfice de la prise en charge des patientes.
Etude comparative des interactions précoces des mères psychotiques et déprimées avec leur bébé
Authors: Gandillot Sophie , Wendland Jaqueline , Wolff Marion , Moisselin Philippe 
Published: July 2012

Résumé Si les interactions précoces mère-nourrisson en cas de dépression maternelle ont été largement étudiées, nous connaissons beaucoup moins celles des mères psychotiques. Les études, comparant les interactions précoces dans le cadre de différentes pathologies mentales maternelles, sont également rares. Cette étude se propose d’évaluer ce qui rapproche et distingue les interactions précoces de mères déprimées et de mères psychotiques en termes de synchronie des comportements, de sensibilité maternelle et de style interactif. L’évaluation des interactions a porté sur dix-huit dyades mère-enfant hospitalisées (dix avec mère psychotique et huit avec mère déprimée). Les dyades ont été filmées en situation de bain. Les interactions ont été analysées à l’aide de deux méthodes complémentaires adaptées pour cette étude : une évaluation quantitative (Belsky, Rovine et Taylor, 1984) et une évaluation qualitative (Care-Index ; Crittenden, 1981). La pathologie maternelle, qu’elle soit dépressive ou psychotique, s’associe avec des styles interactifs dysharmonieux. Les points communs essentiels de ces interactions sont la discordance et la pauvreté des interactions. La dépression maternelle semble plus influer sur la synchronie des interactions et le retrait des deux partenaires. Les dyades avec mère psychotique montrent un plus grand nombre d’interactions qui ne sont pas pour autant plus harmonieuses. Plus que la pathologie, il semble que ce soit le style interactif de la mère qui définit celui de l’enfant. La précocité des réactions du bébé au comportement de sa mère, qu’elle soit déprimée ou psychotique, montre l’importance de l’accompagnement de ces dyades en difficulté.