bluuebunny/crossref_metadata_2025_split huggingface dataset:
Trophic and spatio-temporal niche of the crab-eating fox, Cerdocyon thous (Linnaeus, 1766) (Carnivora: Canidae), in a remnant of the Caatinga in northeastern Brazil
Authors: de Matos Dias Douglas , Bocchiglieri Adriana 
Published: April 2016

Abstractis widely distributed in South America and occurs throughout most of Brazil. However, little is known of its ecology in the semi-arid Caatinga biome, and this study aimed to characterise the ecological niche of the species in Sergipe, in the northeastern extreme of the country. The study was conducted over a period of 13 months, at the Grota do Angico Natural Monument (2138 ha), with monthly campaigns of 6 days in arboreal-shrubby caatinga, riparian forest, and grota (humid gallery forest). Sand plots and camera traps were used to collect records of the species, and faecal samples were collected whenever found during the monitoring of the plots. A total of 407 records of
Influence of Ta2O5doping on mechanical and biological properties of silicate glass-ceramics
Authors: Riaz Madeeha , Zia Rehana , Saleemi Farhat , Bashir Farooq , Ahmad Riaz , Hossain Tousif 
Published: April 2016

AbstractThe mechanical properties of silicate glass-ceramics were evaluated based on the compressive strength tests. It was found that Ta2O5addition improved densification, refinement of the microstructure and toughening of the bodies. The maximum compressive strength of the bodies with 1 mol% Ta2O5was increased 3-fold (245.92 ±0.3 MPa) in comparison to undoped glass-ceramics which was measured to be 89.04 ±0.3 MPa, while for 3 mol% it became 4-fold (387.12 ±0.4 MPa) greater. The addition of Ta2O5stabilized the system by controlling the biodegradation of the glass-ceramics. It effectively depressed the apatite formation as by addition of 3 mol% Ta2O5no apatite layer was observed. It may be concluded from this study that mechanical and physical properties can be improved by the addition of Ta2O5, but at a cost of bioactivity. Still the optimized composition having Ta2O5⩽ 1 mol% may provide appropriate strength of biomaterials for high load bearing applications.
Mesoscale cavities in hollow-core waveguides for quantum optics with atomic ensembles
Authors: Haapamaki C.M. , Flannery J. , Bappi G. , Al Maruf R. , Bhaskara S.V. , Alshehri O. , Yoon T. , Bajcsy M. 
Published: April 2016

Abstract
Single-mode hollow-core waveguides loaded with atomic ensembles offer an excellent platform for light–matter interactions and nonlinear optics at low photon levels. We review and discuss possible approaches for incorporating mirrors, cavities, and Bragg gratings into these waveguides without obstructing their hollow cores. With these additional features controlling the light propagation in the hollow-core waveguides, one could potentially achieve optical nonlinearities controllable by single photons in systems with small footprints that can be integrated on a chip. We propose possible applications such as single-photon transistors and superradiant lasers that could be implemented in these enhanced hollow-core waveguides.
Solar thermophotovoltaics: reshaping the solar spectrum
Authors: Zhou Zhiguang , Sakr Enas , Sun Yubo , Bermel Peter 
Published: April 2016

AbstractRecently, there has been increasing interest in utilizing solar thermophotovoltaics (STPV) to convert sunlight into electricity, given their potential to exceed the Shockley-Queisser limit. Encouragingly, there have also been several recent demonstrations of improved system-level efficiency as high as 6.2%. In this work, we review prior work in the field, with particular emphasis on the role of several key principles in their experimental operation, performance, and reliability. In particular, for the problem of designing selective solar absorbers, we consider the trade-off between solar absorption and thermal losses, particularly radiative and convective mechanisms. For the selective thermal emitters, we consider the tradeoff between emission at critical wavelengths and parasitic losses. Then for the thermophotovoltaic (TPV) diodes, we consider the trade-off between increasing the potential short-circuit current, and maintaining a reasonable opencircuit voltage. This treatment parallels the historic development of the field, but also connects early insights with recent developments in adjacent fields.With these various components connecting in multiple ways, a system-level end-to-end modeling approach is necessary for a comprehensive understanding and appropriate improvement of STPV systems. This approach will ultimately allow researchers to design STPV systems capable of exceeding recently demonstrated efficiency values.
Normal-dispersion microresonator Kerr frequency combs
Authors: Xue Xiaoxiao , Qi Minghao , Weiner Andrew M. 
Published: April 2016

Abstract
Optical microresonator-based Kerr frequency comb generation has developed into a hot research area in the past decade. Microresonator combs are promising for portable applications due to their potential for chip-level integration and low power consumption. According to the group velocity dispersion of the microresonator employed, research in this field may be classified into two categories: the anomalous dispersion regime and the normal dispersion regime. In this paper, we discuss the physics of Kerr comb generation in the normal dispersion regime and review recent experimental advances. The potential advantages and future directions of normal dispersion combs are also discussed.
Direct generation of optical frequency combs in χ(2) nonlinear cavities
Authors: Mosca Simona , Ricciardi Iolanda , Parisi Maria , Maddaloni Pasquale , Santamaria Luigi , De Natale Paolo , De Rosa Maurizio 
Published: April 2016

Abstract
Quadratic nonlinear processes are currently exploited for frequency comb transfer and extension from the visible and near infrared regions to other spectral ranges where direct comb generation cannot be accomplished. However, frequency comb generation has been directly observed in continuously pumped quadratic nonlinear crystals placed inside an optical cavity. At the same time, an introductory theoretical description of the phenomenon has been provided, showing a remarkable analogy with the dynamics of third-order Kerr microresonators. Here, we give an overview of our recent work on χ(2) frequency comb generation. Furthermore, we generalize the preliminary three-wave spectral model to a many-mode comb and present a stability analysis of different cavity field regimes. Although our work is a very early stage, it lays the groundwork for a novel class of highly efficient and versatile frequency comb synthesizers based on second-order nonlinear materials.
Towards efficient solar-to-hydrogen conversion: Fundamentals and recent progress in copper-based chalcogenide photocathodes
Authors: Chen Yubin , Feng Xiaoyang , Liu Maochang , Su Jinzhan , Shen Shaohua 
Published: April 2016

AbstractPhotoelectrochemical (PEC) water splitting for hydrogen generation has been considered as a promising route to convert and store solar energy into chemical fuels. In terms of its large-scale application, seeking semiconductor photoelectrodes with high efficiency and good stability should be essential. Although an enormous number of materials have been explored for solar water splitting in the last several decades, challenges still remain for the practical application. P-type copper-based chalcogenides, such as Cu(In, Ga)Se2 and Cu2ZnSnS4, have shown impressive performance in photovoltaics due to narrow bandgaps, high absorption coefficients, and good carrier transport properties. The obtained high efficiencies in photovoltaics have promoted the utilization of these materials into the field of PEC water splitting. A comprehensive review on copper-based chalcogenides for solar-to-hydrogen conversion would help advance the research in this expanding area. This review will cover the physicochemical properties of copper-based chalco-genides, developments of various photocathodes, strategies to enhance the PEC activity and stability, introductions of tandem PEC cells, and finally, prospects on their potential for the practical solar-to-hydrogen conversion. We believe this review article can provide some insights of fundamentals and applications of copper-based chalco-genide thin films for PEC water splitting.
Crystal structure of ent-1β,7α,11α-trihydroxy-7β,20-epoxykaur-16-en-15-one, C20H28O5
Authors: Xin Lai-Xiang , Zhang Jing-Jie , Ye Jiang-Hai , Zhao Chen-Liang , Pan Lu-Tai 
Published: April 2016

Abstract
C20H28O5, orthorhombic, P212121 (no. 19), a = 8.435(3) Å, b = 11.693(4) Å, c = 18.015(6) Å, V = 1776.9(11) Å3, Z = 4, R
gt(F) = 0.0364, wR
ref(F
2) = 0.0933, T = 293(2) K.
Modelowanie położenia jednostek kompleksów rolniczej przydatności gleb na podstawie przetwarzania ograniczonych informacji fizjograficznych i Glebowych ze zdigitalizowanych materiałów kartograficznych / Modeling the Position of Agricultural Suitability Units of Soils on the Basis of the Limited Physiographic Information Processing with Digitized Cartographic Materials
Authors: Gruszczyński Stanisław 
Published: April 2016

Abstract
The aim of the study was to test the ability to model soil capability units diversity of on the basis of limited information about particle size and morphology of the terrain data. The data obtained from digitization of maps of agricultural soil and topography of the region of the Upper Silesian Industrial District. Rule extraction tools and build models were algorithms in the field of computational intelligence: different versions of decision trees, neural networks and deep learning algorithms. The best algorithms allow for correct classification to 90% of the elements of the validation set. The design ensemble of specialized classifier algorithm increased the efficiency of decision-making algorithm to identify a set of validation to about 94%. Proper selection decision algorithm allows the estimation of the likelihood vector belonging to a complex object. Computational intelligence algorithms can be considered as a tool for extracting classification rules from the collection of data on soils on the local or regional level.
Messung von Fettgehalt und Fettvolumen mittels 1H-MR-spektroskopischer Relaxometrie und quantitativer MR-Bildgebung
Authors: Sprinkart Alois M. , Kukuk Guido , Homsi Rami , Block Wolfgang , Träber Frank 
Published: April 2016

Zusammenfassung
Die Bestimmung des relativen Fettgehaltes der Leber und die Volumetrie
von Fettgewebe gewinnt in der radiologischen Diagnostik und in
wissenschaftlichen Anwendungen zunehmend an Bedeutung. Die vorliegende
Arbeit vergleicht Verfahren der MR-spektroskopischen Relaxometrie und
der Magnetresonanztomographie zur Bestimmung des Fettgehaltes von
Gewebe und stellt eine Methode zur Volumetrie von kardialem Fettgewebe
vor.
On-the-fly geometrical calibration fine-tuning of a mobile C-arm CBCT system
Authors: El Hakimi Wissam , Sakas Georgios 
Published: April 2016

Abstract
C-arm cone-beam computed tomography (CBCT) offers CT-like 3D imaging
capabilities while being appropriate for interventional suites. 3D
images are reconstructed based on 2D projections gathered during the
rotation of the C-arm around the object under investigation. It is
mandatory to provide accurate geometrical projection parameters for
each acquired 2D image, otherwise significant CT artifacts may be
induced in the reconstructed 3D volume. Usually, a pre-calibration
(offline calibration) using an X-ray phantom is preformed under the
assumption that the C-arm motion is reproducible. Thereby, stochastic
misalignments due to the open design of mobile C-arm CBCT systems are
not considered. In this article we introduce a novel online
calibration algorithm to compensate stochastic mechanical
inaccuracies. The performance of the proposed method is demonstrated
on simulated and real data.
Entwicklung eines elektrochemischen Messsystems zur Vor-Ort-Qualitätskontrolle in der Getränkeindustrie
Authors: Enseleit Ute , Oelßner Wolfram , Henze Jost , Vonau Winfried 
Published: April 2016

Zusammenfassung
Ein wesentliches Qualitätsmerkmal für Bier ist dessen Bitterstoffgehalt. Bitterstoffe
bestimmen nicht nur den für die einzelnen Biersorten charakteristischen Geschmack, sondern
auch die Haltbarkeit des Bieres sowie die erwünschte hohe Beständigkeit der Schaumkrone.
Im Beitrag wird über ein elektrochemisches Messsystem zur Vor-Ort-Bestimmung der
Konzentration von Hopfenbitterstoffen (Isohumulonen bzw. iso-alpha-Säuren) berichtet,
welches in Brauereien eingesetzt werden kann. Für die Messungen wurden eine
Dreielektroden-Messsonde in All-solid-state-Ausführung, bestehend aus einer
Graphit-Arbeits-, einer Platin-Gegen- und einer Silber-Silberchlorid-Referenzelektrode,
verwendet. Als elektroanalytische Bestimmungsmethode kam die Differenzial-Puls-Voltammetrie
zum Einsatz. Referenzmessungen des Bitterstoffanteils im Bier wurden mittels HPLC und
UV-Detektion nach vorangestellter Anreicherung der Bitterstoffe mit Hilfe der
Festphasenextraktion (SPE) durchgeführt. Prototypen des elektrochemischen Messsystems
wurden in einer Brauerei erprobt.
Low beta-arrestin expression correlates with the responsiveness to long-term somatostatin analog treatment in acromegaly
Authors: Gatto Federico , Biermasz Nienke R , Feelders Richard A , Kros Johan M , Dogan Fadime , van der Lely Aart-Jan , Neggers Sebastian J C M M , Lamberts Steven W J , Pereira Alberto M , Ferone Diego , Hofland Leo J 
Published: April 2016

AbstractObjectiveThe high expression of somatostatin receptor subtype 2 (SSTR2 also known as sst2) usually present in growth hormone (GH)-secreting adenomas is the rationale for therapy with somatostatin analogs (SSAs) in acromegaly. Although SSTR2 expression is a good predictor for biochemical response to SSA treatment, we still face tumors resistant to SSAs despite high SSTR2 expression. Recently, beta-arrestins (β-arrestins) have been highlighted as key players in the regulation of SSTR2 function.DesignTo investigate whether β-arrestins might be useful predictors of responsiveness to long-term SSA treatment in acromegaly, we retrospectively evaluated 35 patients with acromegaly who underwent adenomectomy in two referral centers in The Netherlands.Methodsβ-arrestin mRNA levels were evaluated in adenoma samples, together with SSTR2 (and SSTR5) mRNA and protein expression. Biochemical response to long-term SSA treatment (median 12 months) was assessed in 32 patients.Resultsβ-arrestin 1 and 2 mRNA was significantly lower in adenoma tissues from patients who achieved insulin-like growth factor 1 normalization (P= 0.024 andP= 0.047) and complete biochemical control (P= 0.047 andP= 0.039). The SSTR2 mRNA was higher in SSA responder patients compared with the resistant ones (P= 0.026). This difference was more evident when analyzing the SSTR2/β-arrestin 1 and SSTR2/β-arrestin 2 ratio (P= 0.011 andP= 0.010). β-arrestin 1 and 2 expression showed a significant trend of higher median values from full responders, partial responders to resistant patients (P= 0.045 andP= 0.021, respectively). Interestingly, SSTR2 protein expression showed a strong inverse correlation with both β-arrestin 1 and 2 mRNA (ρ= –0.69,P= 0.0011 andρ= –0.67,P= 0.0016).ConclusionsLow β-arrestin expression and high SSTR2/β-arrestin ratio correlate with the responsiveness to long-term treatment with SSAs in patients with acromegaly.
Metachondromatosis without Enchondromas
Authors: Kanaya Kohei , Ishikawa Aki , Yaoita Masako , Niihori Tetsuya , Aoki Yoko , Iba Kousuke , Yamashita Toshihiko 
Published: April 2016

Case:
A nine-year-old boy had multiple osteochondromas in the hands, feet, and tibiae, many of which pointed toward the adjacent joint. Although several were treated surgically, others resolved spontaneously. A heterozygous mutation in the PTPN11 gene was identified by genetic analysis of peripheral blood, so the patient was diagnosed with metachondromatosis despite the absence of enchondromatous lesions.

Conclusion:
To the best of our knowledge, this is the first reported case of a patient with metachondromatosis without any enchondromatous lesions.
Exertional Compartment Syndrome with Amniotic Band Disruption Sequence
Authors: Wall Lindley B. , Butler Lesley , Ezaki Marybeth , Oishi Scott N. 
Published: April 2016

Cases:
We report the cases of two female patients who presented with symptoms of lower-extremity exertional compartment syndrome years after initial amniotic band reconstruction. These patients underwent extensive fascial release for treatment of amniotic band disruption sequence (ABDS) of the lower extremity, with resolution of their symptoms. We describe our current technique that is now performed at the time of initial reconstruction for addressing all layers of the deformity.

Conclusion:
The surgical reconstruction of ABDS requires addressing all layers of the deformity. Failure to do so may lead to long-term sequelae. Both patients in this report had exertional compartment syndrome following incomplete fascial release at their primary surgery, requiring subsequent fasciotomies.
Caracterização do trabalho gerencial na secretaria municipal de educação de santa Maria de Jetibá-ES
Authors: Miertschink Edgar , Junquilho Gelson Silva 
Published: April 2016

Esta pesquisa teve a intenção de descrever as características do trabalho gerencial de gestores educacionais a partir de suas percepções sobre ações realizadas junto aos demais membros da comunidade escolar, equipes de gestão e de uma Secretaria Municipal de Educação. Em primeiro momento, documentos foram analisados para conhecimento e caracterização da estrutura organizacional da Secretaria Municipal de Educação. Para se entender as características dos gestores optou-se pela realização de entrevistas semiestruturadas com objetivo de buscar certo aprofundamento nas ações vivenciadas pelos entrevistados. Os dados obtidos nas entrevistas apresentaram fragmentos que foram submetidos à análise de conteúdo buscando o entendimento das relações vividas no ambiente da gestão educacional, conseguindo retratar algumas características das ações de gerenciamento do grupo estudado. A expectativa é de que esta pesquisa instigue novos diálogos sobre as relações de gestores educacionais, em especial de coordenadores de escolas multisseriadas e de chefias internas de sistemas educacionais.
TIME - MAKING THE BEST OF IT! A Fieldwork Study Outlining Time in Endoscopy Facilities for Short-Term Stay
Authors: Bundgaard Karin , Sørensen Erik E. , Delmar Charlotte 
Published: April 2016

Aim:This paper focus on nursing and time in endoscopy facilities for short-term stay aiming to explore aspects of time in this setting and how expectations from the healthcare organisation, patients and nurses are expressed and met when managing nursing time.Background:Former research primarily focuses on the subject of time in the understanding of duration where having more time is closely associated with the ability to deliver better quality nursing care. The main concern is the nurses’ increased number of tasks and the decreased length of time at their disposal. However, few studies describe nursing when time is sparse, and the possibility of providing individualised nursing within a very short span of time.Design:Inspired by practical ethnographic principles, a fieldwork study was performed in high technology endoscopy clinics during 2008-2010.Methods:Data triangulation included participant observation, participant reports and patients and nurses semi-structured interviews.Results/Findings:The issue of time was an interwoven part of life in the productive endoscopy units. The understanding of time related to the main category: ‘Time - making the best of it’, and the sub categories “Responsibility of time”, “Information and preparation”, and “Time wasters”.Conclusion:The study underlines the possibility of combining the health care systems, patients and the nurses’ perspectives on and expectations of how to spend nursing time in endoscopy settings. In successful patient pathways nursing maximize patient outcome, support the goals of the healthcare organisations, is reliable, assure, tangible, empathic and responsive, and is individually tailored to the patient’s needs. The study contributes by underlining the importance of discussing not how to get more time in clinical practice but instead how to spend the time in the best way possible.
Effect of indentation conditions on the cracking behavior of a FeCrBSi coating
Authors: Song Ya-nan , Xu Bin-shi , Wang Hai-dou , Liu Ming , Piao Zhong-yu 
Published: April 2016

Abstract
A detector combining indentation method and acoustic emission (AE) technique was developed for evaluating the bonding strengths of sprayed coatings. In order to study the effect of indentation conditions on cracking failure behavior of sprayed coating, FeCrBSi coating was prepared by plasma spraying technique. The AE signals during indentation test were abstracted and investigated. The morphologies of indented samples were observed by scanning electronic microscopy (SEM). The results indicate that indentation equipment can induce the cracking failure of coating and AE technique can define the critical statues. The test by interior load was feasible and accurate for evaluating the bonding strength. The key influential factor of indenter lied in the contact area between indenter and coating. The loading rate had little effect on AE signal. The loading conditions were optimized to use diamond indenter with interior load and a loading rate of 100 pulses per second.
Research and Application of Wireless Temperature Measurement Device in High Temperature Enclosed Environment
Authors: Liu Q. , Chengtao C. , Huachun Y. , Guocai Z. 
Published: April 2016

Abstract
Rotational molding, which is widely used in furnishing, entertainment facilities, automotive and boats, military industry and other fields, is a forming method used to produce hollow thermoplastic products. Temperature is the most important process parameter in the rotational molding process, so accurate temperature modulation and control are undoubtedly the main way to ensure product quality. During the rotational molding process, temperature in the oven is very high. Current temperature measuring device cannot make real-time measurement and cannot provide the necessary reference for accurate temperature modulation and control. This article provides an analysis of a wireless temperature measurement device which is used in high temperature enclosed environment, researches the structure, the barrier principle of the temperature measurement device. Finally, tests have been done to verify the working performance. Accurate monitoring and control of the temperature parameter during the rotational molding process can not only improve the working efficiency and energy efficiency of the rotational molding machine, but also provide the reference to design the rotational molding device and molds.