bluuebunny/crossref_metadata_2025_split huggingface dataset:
Piezoelectric 2D materials for bistable NEMS energy harvesters
Authors: López-Suárez Miquel , Pruneda Miguel , Rurali Riccardo , Abadal Gabriel 
Published: May 2014

ABSTRACTThe dynamics of one atom thick h-BN suspended nanoribbons have been obtained by first performing ab-initio calculations of the deformation potential energy and then solving numerically a Langevine type equation to explore their use as energy harvesting devices. Similarly to our previous proposal for a graphene-based harvester1, an applied compressive strain is used to drive the clamped-clamped nanoribbon structure into a bistable regime, where quasi-harmonic vibrations are combined with low frequency swings between the minima of a double-well potential. h-BN, graphene and MoS2 similar structures have been compared in terms of the static response to a compressive strain and of the dynamic evolution induced by an external noisy vibration. Due to its intrinsic piezoelectric response, the mechanical harvester naturally provides an electrical power that is readily available or can be stored by simply contacting the monolayer at its ends. Engineering the induced non-linearity, the proposed device is predicted to harvest an electrical root mean square (rms) power of more than 180 fW when it is excited by a noisy external force characterized by a white Gaussian frequency distribution with an intensity in the order of Frms=5pN.
Dental Arch Relationship Outcomes in One- and Two-Stage Palatoplasty for Japanese Patients with Complete Unilateral Cleft Lip and Palate
Authors: Mikoya Tadashi , Shibukawa Toyoko , Susami Takafumi , Sato Yoshiaki , Tengan Toshimoto , Katashima Hirotaka , Oyama Akihiko , Matsuzawa Yusuke , Ito Yumi , Funayama Emi 
Published: May 2014

Objective To compare dental arch relationship outcomes following one- and two-stage palatal repair. Design Nonrandomized, clinical trial with concurrent control. Setting Hokkaido University Hospital. Patients Sixty-eight consecutively treated Japanese patients with complete unilateral cleft lip and palate. Interventions Thirty-one of the 68 patients underwent two-stage palatoplasty with delayed hard palate closure, and 37 patients underwent one-stage pushback palatoplasty. Main Outcome Measures Dental casts were taken at 4.9 to 6.3 (mean: 5.2) years of age in the two-stage group and at 4.0 to 6.3 (mean: 5.1) years of age in the one-stage group, and dental arch relationships were assessed using the 5-Year-Olds’ Index (5-Y) by four raters and the Huddart/Bodenham Index (HB) by two raters. Results Intrarater and interrater reliabilities evaluated using weighted kappa statistics were good or better for the 5-Y and HB ratings. The mean 5-Y score was 2.94 in the two-stage group and 3.13 in the one-stage group ( P value was not significant). However, there was a significant difference in distributions between the groups ( P < .05). The HB scores of molars were significantly greater in the two-stage group than in the one-stage group ( P < .05). The rank correlation coefficients between the 5-Y and total HB score (ρ = −0.840, P < .01) and between the 5-Y and the score of the incisors in the HB (ρ = −0.814, P < .01) were significantly increased. Conclusions These results suggest that the anteroposterior relationship was not significantly different between the groups, but the transversal relationship was better in the two-stage group than in the one-stage group.
‘¿Tu Te Acuerdas De Ganchulinas?’: Longitudinal Research with Young Emergent Bilinguals
Authors: Axelrod Ysaaca 
Published: May 2014

Drawing on the work of Celia Genishi, this article discusses data from an ethnographic case study of young Latina/o children, starting in their four-year-olds classroom in a Head Start Program through their first grade year in a dual-language program in a public school. The children attended a bilingual Head Start program that followed a play-based curriculum and focused on the socio-emotional development of the children. The flexibility of the curriculum in this setting allowed time and space for the children to play and develop at their own pace, positioning them as knowers and learners. The children then moved into a public school setting with a narrow ‘literacy focused’ curriculum, with strict boundaries established between languages and a narrower definition of what ‘counts' as literacy. In spite of this, these children continued to draw on their linguistic resources, making space for play and developing their identities as multilingual children in ways that are often not captured by the curriculum, but are visible to those who seek to listen to the children and see their strengths and growth over time. ‘Remember, remember when I was in prekinder and I drew a flower in your notebook’ says Javier to me. ‘Yes, I remember’, I say, and flip back through my field notebook to show him his drawing. ‘Yo también dibujé una flor’ says Luna, and we flip back until we find it. ‘She [pointing to me] was in my mines preschool’ says Javier to the other children who have gathered around my table in this first grade classroom. ‘Yeah, yeah, she was in mine too’ says a boy who has joined us. ‘No, no you wasn't!’ says Javier, ‘he wasn't, right Ysaaca?’ I nod and agree, ‘Yeah, Javier is right, you weren't in the preschool with me, but I remember you from last year in kindergarten when I used to come visit’. ‘Oh yeah’ says the boy. Javier says: ‘Yeah, in preschool it was … [looks around his first grade classroom] me and Luna and Estrella and Flor and who else Ysaaca? Can we look at your notebook to see who was there?’
Malassezia spp on the periocular skin of dogs and their association with blepharitis, ocular discharge, and the application of ophthalmic medications
Authors: Newbold Georgina M. , Outerbridge Catherine A. , Kass Philip H. , Maggs David J. 
Published: May 2014

Abstract
Objective—To determine how frequently Malassezia spp were identified on the periocular skin of dogs and assess the respective associations between the presence of Malassezia spp on the periocular skin and blepharitis, ocular discharge, and the application of ophthalmic medications.
Design—Prospective clinical study.
Animals—167 eyelids of 84 dogs.
Procedures—Samples obtained from the surface of the eyelid skin by use of adhesive tape were evaluated cytologically for the presence of Malassezia spp. Dogs were grouped on the basis of the presence of blepharitis, nature of ocular discharge, and whether ophthalmic medications were applied, and the proportion of samples with Malassezia spp was compared among the groups.
Results—Malassezia spp were detected in 19 samples, of which 15 were obtained from eyes without blepharitis and 14 were obtained from eyes treated with topical ophthalmic medications. The proportion of samples with Malassezia spp was significantly higher for eyes with ocular discharge than for eyes without ocular discharge, especially if that discharge was mucoid or mucopurulent, and for eyes that were treated with aqueous-based medications only or a combination of oil- and aqueous-based medications than for eyes that were not treated.
Conclusions and Clinical Relevance—Malassezia organisms were detected on the periocular skin of 3 of 56 (5%) clinically normal dogs. Malassezia organisms were also frequently found on the periocular skin of dogs that had mucoid or mucopurulent ocular discharge or that were administered topical aqueous-based ophthalmic medications, and the periocular skin of these dogs should be cytologically evaluated for Malassezia organisms. (J Am Vet Med Assoc 2014;244:1304–1308)
The Boundary at Infinity of a Rough CAT(0) Space
Authors: Buckley S.M. , Falk K. 
Published: May 2014

AbstractWe develop the boundary theory of rough CAT(0) spaces, a class of length spaces that contains both Gromov hyperbolic length spaces and CAT(0) spaces. The resulting theory generalizes the common features of the Gromov boundary of a Gromov hyperbolic length space and the ideal boundary of a complete CAT(0) space. It is not assumed that the spaces are geodesic or proper
The Mathematical Modelling of Heat Transfer in Electrical Cables
Authors: Bugajev Andrej , Jankevičiūtė Gerda , Tumanova Natalija 
Published: May 2014

Abstract
This paper describes a mathematical modelling approach for heat transfer calculations in underground high voltage and middle voltage electrical power cables. First of the all typical layout of the cable in the sand or soil is described. Then numerical algorithms are targeted to the two-dimensional mathematical models of transient heat transfer. Finite Volume Method is suggested for calculations. Different strategies of nonorthogonality error elimination are considered. Acute triangles meshes were applied in two-dimensional domain to eliminate this error. Adaptive mesh is also tried. For calculations OpenFOAM open source software which uses Finite Volume Method is applied. To generate acute triangles meshes aCute library is used. The efficiency of the proposed approach is analyzed. The results show that the second order of convergence or close to that is achieved (in terms of sizes of finite volumes). Also it is shown that standard strategy, used by OpenFOAM is less efficient than the proposed approach. Finally it is concluded that for solving real problem a spatial adaptive mesh is essential and adaptive time steps also may be needed.
The usefulness of ground-penetrating radar images for the research of a large sand-bed braided river: case study from the Vistula River (central Poland)
Authors: Lejzerowicz Anna , Kowalczyk Sebastian , Wysocka Anna 
Published: May 2014

Abstract
Ground-penetrating radar (GPR) surveys and sedimentological outcrop analyses were combined in order to determine the reflection patterns and internal architecture of terrace deposits of the Vistula River at Kępa Zawadowska in the southern part of Warsaw (central Poland). The sedimentary analyses concerned the granulometric composition and lithofacies analysis. The 34 GPR profiles, which were obtained in two outcrops, using a Malå RAMAC/GPR system with 500-MHz and 250-MHz shielded antennas, were up to 100 m long. The most characteristic ground-penetrating radar profiles are presented; they show a high-resolution data set of radar facies. The GPR data suggest the presence of three geophysically different units, namely with high-angle inclined reflections (radar facies 1), with discontinuous undulating or trough-shaped reflections (radar facies 2), and with low-angle reflections (radar facies 3). The internal structure of the fluvial deposits was obtained by integration of the GPR and sedimentological data, which combination provides a more accurate visualisation of sedimentary units than do reconstructions that are based only on standard lithologic point data.
In vivo stimulatory effect of multi-component herbal remedy PADMA 28 on mitogen-induced proliferation of mice splenic lymphocytes and their chemokinetic activity
Authors: Skopiński P. , Radomska-Leśniewska D.M. , Sokolnicka I. , Bałan B.J. , Siwicki A.K. , Skopińska-Różewska E. 
Published: May 2014

Abstract
PADMA 28, a natural herbal multi-compound remedy originates from traditional Tibetan medicine and possesses a variety of beneficial effects on experimental and clinical models of inflammation and atherosclerosis, as well as angioprotecive, antioxidative and wound - healing properties. The aim of the present study was to evaluate the in vivo influence of this remedy on the in vitro mitogen- induced proliferation of murine splenic lymphocytes and their chemokinetic activity in cell culture. The study was performed on 6-8 weeks old inbred Balb/c mice. PADMA28 was administered to mice per os in daily doses 5.8 mg (calculated from the highest dose recommended for human) or 0.085 mg (dose from the range of active doses of other herbal extracts containing polyphenolic substances used previously by us in experiments with mice), for 7 days. Control groups received water.
Results: No substantial differences were observed between groups of mice fed with low and high PADMA doses. In both of them, response of splenic lymphocztes to mitogen PHA (p < 0.001) and their in vitro chemokinetic activity (p < 0.001 for low dose and p < 0.01 for high dose) were highly significantly increased as compared to the controls.
Conclusion: The results of our investigations suggest that PADMA 28 can stimulate cell-mediated immunity in mice and might be used for this purpose in the wide spectrum of doses.
Dietary energy density in the dry period on the metabolic status of lactating cows
Authors: Nowak W. , Mikuła R. , Pruszyńska-Oszmałek E. , Maćkowiak P. , Stefańska B. , Kasprowicz-Potocka M. , Frankiewicz A. , Drzazga K. 
Published: May 2014

Abstract
The aim of the study was to investigate the effect of different energy concentrations in the isonitrogenous diet fed during the dry period on postpartum health, fertility and blood variables. Forty Holstein multiparous cows were dried 56 days before the expected day of calving and assigned to group (M) with moderate energy concentrations of 0.69 UFL/kg DM or to the low-energy group (L) with energy density of 0.61 UFL/kg DM. From the 7d before the expected day of calving until the 21d of lactation, all the cows were fed the same fresh transition diet (0.82 UFL/kg DM). From the 22d to the 90d of lactation, all the cows received the same highest energy-density lactation diet (0.90 UFL/kg DM). During the dry period the decline of BCS in groups M and L were 0.07 and 0.12 units respectively. The average decrease of BCS from calving to 56 d of lactation were the same in both experimental groups (0.21 BCS). The first-service conception rate tended to be higher in the M group. Insulin-like growth factor-1, glucose, β-hydroxybutyric acid, non-esterified fatty acid, thyroxine serum concentrations prepartum and 3 and 5d postpartum were not significantly affected by the treatment in the dry period.
Evaluation of morphological criteria of sperm quality before in vitro fertilization and intracytoplasmic sperm injection
Authors: Lasiene K. , Gedrimas V. , Vitkus A. , Glinskyte S. , Lasys V. , Valanciute A. , Sienkiewicz W. 
Published: May 2014

Abstract
The quality of sperm has a direct influence on the fertilization and developmental competence of embryos. In the literature we did not find defined criteria for evaluation of normal sperm parameters in various species of domestic mammals. Therefore we attempted to review evaluation of criteria of morphologically normal human sperm and their abnormalities. All sperm cells observed in the stained sample are classified as normal or abnormal. Any abnormalities in morphology of sperm have a negative effect on the outcome in in vitro fertilization and intracytoplasmic sperm injection. Abnormal sperm are categorized into subgroups according to the observed defects (concerning the head and/or midpiece and/or tail). Most morphologically abnormal sperm have multiple defects. This article can be considered as guideline for the manual of sperm quality evaluation in different species of domestic mammals.
Secondary School Students’ Opinions on the Selected Problems at PE Lessons
Authors: Antala Branislav , Šimonek Jaromír , Czaková Natália 
Published: May 2014

Abstract
Research paper deals with the opinions of students of secondary schools on physical education lessons at school. The aim was to find out various aspects of education such as popularity, demandingness, importance of the subject, feelings and emotions during PE lessons, and sport preferences of young people. The results have shown that the opinions of students on popularity, significance, talent, motivation and effort exerted during PE lessons were more positive than negative. Boys stated that they consider the subject not difficult, popular, and they show effort at lessons. Girls stated that the subject is not demanding, popular, but in a smaller degree than boys. Girls marked the subject as less importantn they show less talent for it and are less motivated for it than boys. As to boys, PE & Sport lessons evoke always or mostly emotions, while the answers of girls oscillated between mostly emotional, sometimes emotional or sometimes unemotional. Difference between the answers of boys and girls was statistically significant on the level of p<0,05. The answers of boys and girls to the question concerning cancellation of a PE lesson were oscillating between the values 2 and 3 (I am often happy; my opinion is indifferent), despite the fact that they stated in the questionnaire that they mostly feel well at PE lessons. The difference between both genders is statistically significant on the level of p<0,05. The answers of boys and girls to the question concerning satisfaction with the content of PE lessons oscillated between the values 2 and 3 (satisfied; partially satisfied, partially not satisfied). Generally we can state that the answers of students were more positive than negative. The difference between the answers of both genders is not statistically significant on the level of 0,05 (p=0,07). The answers to the question concerning the quality of PE lessons oscillated between the values 2-3 (mostly of good quality, changing quality). Boys presented a little more positive answers than girls, however, the difference between both genders is not statistically significant on the level of 0,05 (p=0,411).
Influence of Use of Wiper Blades Upon Surface Roughness in Machining of Austenitic Stainless Steel
Authors: Karolczak Paweł , Kowalski Maciej 
Published: May 2014

Abstract
The paper presents evaluation of possibilities of use of Wiper blades for machining of austenitic stainless steel. It presents information relating to geometry of Wiper blades. It also describes in detail testing conditions focusing upon description of the tested material and presenting testing stations. Next, it presents results of experimental tests on turning of 0H18N9 steel with the use of rhomboid and triangular inserts with traditional geometry and Wiper blades. On the basis of the surface roughness tests, efficiency of use of Wiper blades was determined and it was determined, how the positive influence of geometry of Wiper blades upon surface roughness changes with the change of machining parameters.
Studying of Technological Characteristics in Cutting Zone by Multifunction Measuring System
Authors: Šajgalík Michal , Czán Andrej , Szigety Marek , Bobrovský Róbert 
Published: May 2014

Abstract
In this manuscript are described and evaluated processes in cutting zone during machining process by turning based on the results of the multifunction measuring system. This system consists of three different measuring units, which allow to measure and monitor processes in the cutting zone, such as size of components of cutting force, temperature field and its evolution during the cutting process, etc. The results as the data from each unit of multifunction measuring system provide detailed and comprehensive information about processes in cutting zone during the machining and they help to better knowledge of processes in cutting zone during the machining.
Identification Turning Machinability of Ceramic Materials
Authors: Kurňava Tomáš , Dana Stancekova , Struharnansky Jozef , Janota Miroslav 
Published: May 2014

Abstract
The paper deals with machining superhard materials machined by turning. Introductory section contains an analysis of ceramic materials used and their utilization in engineering practice . The aim of the experimental work is the selection of the appropriate cutting discs, cutting establish conditions which would ensure productive machining of the ceramics..
Technology of Coupled Timber–Concrete Ceiling Using Bonded Shear Connectors
Authors: Čajka Radim , Burkovič Kamil 
Published: May 2014

Abstract
The article describes the specific technological process that has been examined in the reconstruction of the ceiling structure of a house on Sokolska Street in Ostrava. Following experimental testing in laboratories at the Faculty of Civil Engineering VSB - TU Ostrava the technology of bonded shear bars under static reinforcement of timber ceilings was first applied and successfully tested in construction practice. This paper deals with the possibilities of using coupled timber-concrete structures by means a glued coupling bar. The described process of static reinforcement is particularly suitable for reconstruction of historic timber ceilings and places where it is necessary to prevent damage to non-supporting structures (e.g. ceiling, plaster, stucco decorations, etc.). The method is also employed in those cases where it is necessary to allow traffic-flow in the rooms below the reconstructed ceiling.
Load Bearing Capacity Tests of Mechanical Joining on Timber-Concrete Beam / Laboratorní Testování Únosnosti Mechanického Spřažení Dřevobetonového Nosníku
Authors: Agel Petr , Lokaj Antonín 
Published: May 2014

Abstract
Timber-concrete composite structures which use advantages of both materials are suitable for new works and reconstructions of civil and residential buildings.
There are described many methods of joining between timber beam and concrete slab in technical literature. Joints are more and more sophisticate which brings higher demands of work control and technology.
Main goal of this paper is in design technologically low demanding method of joining with steel plates and nails, to test its shear strength and compare it with other similar joining method.
Characterisation of log loading process
Authors: Isokangas Ari , Ala-Kaila Kari , Sorsa Aki , Ohenoja Markku , Leiviskä Kauko 
Published: May 2014

Abstract
The objective of this work was to develop a log loading simulator of the wood room in pulp and paper industry. In the first stage the log loading process is modelled. Then the criteria for evaluating the effects of log loading on the wood room performance are defined. The motivation for the research is that log loading can be identified as playing a central role if the production and cost-effectiveness of the wood room is to be increased. The lack of reliable process measurements and changes in raw material quality, which are not measured on-line, make the data-based modelling of an industrial log loading process difficult. For these reasons, the research was performed via mathematical modelling of the process. The simulated results confirm that the same production can be obtained in many ways, but there can be differences in costs. Especially too high speed of the infeed conveyor in relation to capacity leads to several drawbacks, which typically result in increased wood loss and decreased chip quality. For this reason it is important to consider all aspects of log loading for the best performance. The results give insight into the log loading process and may help to improve the log loading process.
Analytical measurement of microstickies on fibers by model surfaces
Authors: Du Xiaotang , Hsieh Jeffery S. 
Published: May 2014

Abstract
A silicon wafer coated with cellulose was prepared to measure the deposition of stickies on fibers and polyvinyl acetate (PVAc) suspension is prepared as the model compound. In addition, two methods, shear force and aeration, were used to induce the agglomeration and deposition of microstickies. The model surface was characterized by X-ray photoelectron spectroscopy (XPS) and water contact angle. The results from new methods were also compared with old methods of High-density polyethylene (HDPE) deposition and INGEDE (International Association of the Deinking Industry) Method 4. Although these methods have been used to predict the deposition of stickies onto the drying felt or other equipment, the deposition of stickies onto fibers can differ significantly due to the hydrophilic nature of the fibers. This is the first measurement method that could help to predict the deposition of stickies onto paper products, which has been shown to cause detrimental effects.