bluuebunny/crossref_metadata_2025_split huggingface dataset:
Acute Hydrops with Micro-Cornea – an Extremely Rare Condition: A Case Report
Authors: Chowdhury Tuhin , Pradhan Aditya 
Published: March 2017

Purpose To report the first case of a one-eyed child with micro-cornea, coloboma of iris and acute hydrops without any other disorder of the cornea or systemic disease. Methods Intracameral injection of perfluoro propane (C3F8) gas was performed under general anaesthesia. Results Resolution of the hydrops was observed at 1st week of follow-up, which was confirmed by anterior segment optical coherence tomography. Patient was subsequently lost to follow-up. Conclusions Intracameral injection of perfluoro propane gas is an effective way to quickly resolve acute hydrops. In this specific case, the patient presented with micro-cornea and no other corneal abnormalities.
Color Editing and 3D Volume Rendering of OCT-angiography Images
Authors: El Ameen Ala'a , Querques Giuseppe , Semoun Oudy , Souied Eric H. 
Published: March 2017

Purpose To describe an innovative imaging technique of color editing and 3D volume rendering of optical coherence tomography-angiography (OCT-A) images. Methods Each vascular layer acquired by OCT-A (AngioVue, Optovue) is colored and edited with the GNU Image Manipulation Program. Then a 3D volume rendering of the assessed retinal area is possible, using Adobe After Effect software (Adobe Systems). Results The combined color editing and 3D volume rendering of optical coherence tomography angiography images allow the creation of a short movie displaying the 3D image from chosen angles. Conclusions Image editing and 3D volume rendering is a rather simple technique, which, besides its aesthetic prerequisites, also facilitates simultaneous, distinct visualization of the segmented retinal layers.
Electrochromism in tungsten oxide thin films prepared by chemical bath deposition
Authors: Velevska Julijana , Stojanov Nace , Pecovska-Gjorgjevich Margareta , Najdoski Metodija 
Published: March 2017

<p class="PaperAbstract"><span lang="EN-US">Tungsten oxide (WO<sub>3</sub>) thin films were prepared by a simple, economical, chemical bath deposition method onto fluorine doped tin oxide (FTO) coated glass substrates. The electrochemical properties of the films were characterized by cyclic voltammetry. The obtained films exhibited electrochromism, changing color from initially colorless to deep blue, and back to colorless. Visible transmittance spectra of (WO<sub>3</sub>) films were recorded in-situ in their both, bleached and colored states. From those spectra, absorption coefficient (</span><span lang="EN-US">a</span><span lang="EN-US">) and the optical energy gaps were evaluated. The dependence of the optical density on the charge density was examined and the coloration efficiency (</span><span lang="EN-US">h</span><span lang="EN-US">) was calculated to be 22.11 cm<sup>2 </sup>C<sup>-1</sup>. The response times of the coloring and bleaching to an abrupt potential change from -2.5 V to +2.5 V and reverse, were found to be 9.3 and 1.2 s respectively. The maximum light intensity modulation ability of the films, when the AM1.5 spectrum is taken as an input, was calculated to be about 50 %.</span></p>
UMA EXPERIÊNCIA EM ORIENTAÇAO SEXUAL PARA ADOLESCENTES NA GRADUAÇAO EM PSICOLOGIA
Authors: Di Sessa Sidnei Roberto , Pugliese Mônica Rita Bueno , Coltro Luiza Cristina , Berenstein Judith , Silva Armando Costa e , Rodrigues Junior Oswaldo Martins , Costa Moacir 
Published: March 2017

Através de curso de orientação sexual para adolescentes, extra-curricular, em faculdade privada, os autores descrevem uma experiência de condução de um grupo de adolescentes de 13 a 17 anos do sexo masculino, de escola pública, efetuada em oito encontros semanais de duas horas cada, onde foram trabalhados os aspectos cognitivos referentes aos seguintes temas: anátomo-fisiologia sexual masculina e feminina; jogos amorosos; masturbação; erotismo e pornografia; métodos contraceptivos; gravidez, parto e aborto; doenças sexualmente transmissíveis; desvios sexuais. Os aspectos atitudinais (emocionais/ afetivos) foram trabalhados através de dinamicasde grupo com os adolescentes. Os autores referem a validade da experiência enquanto profissionais da área de Psicologia, percebendo que os pais aceitam e preferem tais abordagens como forma de se cxiniircm de tal responsabilidade.Observam, os autores, que Q momento específico do adolescente deve ser considerado para a orientação sexual. O grupo de orientandos mostrou-se permeado de mitificações sexuais e muito carente de informações cogrutivas sobre sexo, sendo esta, talvez, a razão pela qual buscaram o grupode orientação sexual.
PRATICAS DE EDUCAÇÃO DA CRIANÇA NA FAMÍLIA: A EMERGÊNCIA DO SABER TÉCNICO-CIENTÍFICO
Authors: Biasoli-Alves Zélia M. M. , Caldana Regina H. L. , Silva Maria Helena G. F. Dias da 
Published: March 2017

Face ao grande conjunto de dúvidas e inseguranças evidenciadas pelos adultos quando se deparam com a tarefa de educar as gerações mais novas, propôs-se este estudo contribuir para o aprofundamento da análise do processo de alteração das concepções que norteiam as atitudes assumidas pelos socializadores, ao longo deste século no Brasil, ai incluidos os fatores a ela associados bem como as orientações que costumam procurar. Dados de três pesquisas são analisados, e eles têm por base o relato oral e/ou a informação veiculada pela imprensa escrita.Os resultados mostram o surgimento e a busca do Conhecimento Cientifico a partir da década de 50, que se faz acompanhar de alterações profundas nas formas de criar e educar crianças na familia e permitem que se levante explicações para o faro de, na sociedade brasileira contemporânea, os pais terem tantas dúvidas quanto à melhor maneira de educar sua prole.
ALGUNS PRESSUPOSTOS TEÓRICOS PARA “UM EMPREGO” DO CONCEITO DE DESENVOLVIMENTO
Authors: Moraes Maria Cecilia Leite de , Moron Antonio Fernandes 
Published: March 2017

Este artigo foi extraído de um capítulo da dissertação “Avaliação Percepto-Motora em Crianças, Com Cerca De Dois Anos De Idade, Nascidas De Mães Portadoras de Hipertensão Arterial” (MORAES, 1997). Nesta investigação pretendeu-se rastrear indícios de sequelas perceptomotoras em filhos de mães hipertensas. Usou-se o Denver Developmental Screening Test, complementado por um estudo contextual para avaliar 0 desenvolvimento da população amostral. Foi necessário caracterizar e referendar o conceito de desenvolvimento, para que ele se tomasse compatível com o trabalho e visão do investigador. É importante salientar que se partiu de alguns “riscos” para o desenvolvimento e chegou-se até a “resiliência”. Em função disso, acredita-se que este ensaio é significativo para os que militam na área de saúde, com ênfase em níveis de desenvolvimento humano.
Sequential One‐Pot Synthesis of Dipeptides through the Transient Formation of CDI‐N‐Protected α‐Aminoesters
Authors: de Figueiredo Renata Marcia , Suppo Jean‐Simon , Midrier Camille , Campagne Jean‐Marc 
Published: March 2017

AbstractThe synthesis of dipeptides through a sequential one‐pot procedure from commercially available protected amino acids is described. The transformation relies on the use of in situ generated transiently CDI‐protected α‐amino esters (CDI, e.g. N,N′‐carbonyldiimidazole). In addition of being a highly atom‐economical process, the couplings take place under very mild and neutral conditions without adding a base to the reaction medium. This protocol provides a concise and less costly route to dipeptide derivatives (12 examples, up to 87% yield) and is compatible with commonly used N‐urethane protecting groups. Moreover, no epimerization was detected even when sensitive Boc‐Cys(Bn)−OH was used.magnified image
Environment‐Responsive 8‐CF3‐BODIPY Dyes with Aniline Groups at the 3 Position: Synthesis, Optical Properties and RI‐CC2 Calculations
Authors: Petrushenko Konstantin B. , Petrushenko Igor K. , Petrova Olga V. , Sobenina Lyubov N. , Ushakov Igor A. , Trofimov Boris A. 
Published: March 2017

AbstractThe spectroscopic and the photophysical properties of isomeric environment‐sensitive BODIPY derivatives in different solvents are reported. The simultaneous presence of the strong electron‐acceptor CF3 and electron‐donor NH2 group in the structure of BODIPY, as well as the position of the NH2 group on the aryl ring, showed a significant effect on the spectroscopic and fluorescence characteristics of the BODIPY chromophore, both experimentally and theoretically. The comparison of meta and para derivatives (1 a and 1 b) shows that, in both cases, they have a very low quantum yield (Φf) and fluorescence lifetime (τf) in the solvents used (except for n‐hexane), therefore, they are potentially suitable as turn‐on fluorescence sensors. The twisted intramolecular charge transfer (TICT) mechanism was adopted to explain solvate‐induced fluorescence quenching. Besides this, there is a strong pH dependence on the photophysical behavior of the two isomers, which could also lead to applications as pH sensors. On the other hand, only 1 a can be a useful probe for CO2 sensing. Owing to a weaker electron‐donor character of the NHCOMe group in comparison with the NH2 group, the position of the fluorescence “off–on” threshold of BODIPY 1 c and 1 d is shifted to the side of more polar solvents than for 1 a and 1 b.
Unsymmetric Twofold Scholl Cyclization of a 5,11‐Dinaphthyltetracene: Selective Formation of Pentagonal and Hexagonal Rings via Dicationic Intermediates
Authors: Chaolumen  , Murata Michihisa , Wakamiya Atsushi , Murata Yasujiro 
Published: March 2017

AbstractEven though the Scholl reaction is one of the most powerful processes for the synthesis of polycyclic aromatic hydrocarbons (PAHs), its mechanism still remains a subject of discussion. Herein, we report a unique twofold Scholl cyclization of a 5,11‐dinaphthyltetracene. Single‐crystal X‐ray diffraction analysis of the cyclization product revealed that unsymmetric cyclizations of the two naphthyl groups resulted in the formation of fully unsaturated pentagonal and hexagonal rings. The thus obtained product exhibits a twisted π‐surface and an absorption band that reaches up to 950 nm. A combined experimental and theoretical study showed that such unsymmetric Scholl cyclizations can be rationalized in terms of a mechanism that involves dicationic intermediates, which stands in contrast to previously reported pathways based on radical cations and arenium ions.
Chemosensing hybrid materials: Chalcones‐functionalized cage‐like mesoporous SBA‐16 material for highly selective detection of toxic metal ions
Authors: El‐Nahass Marwa N. , Fayed Tarek A. 
Published: March 2017

Highly selective and low‐cost optical nanosensors of organic–inorganic hybrid materials for heavy metal ions detection have been prepared via the functionalization of mesoporous silica (SBA‐16) with chalcone fluorescent chromophores. The successful attachment of organic chalcone moieties and preservation of original structure of SBA‐16 after the anchoring process were confirmed by extensive characterizations using various techniques like Fourier transform infrared and UV–visible spectroscopies, transmission electron microscopy, nitrogen adsorption–desorption isotherms, low‐angle X‐ray diffraction and thermogravimetric analysis. The colorimetric behaviour, selectivity and sensitivity were also investigated. The optical nanosensors respond selectively to heavy metal ions, such as Mn2+, Fe3+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+ and Hg2+, with observable colour changes in 0.01 M Tris–HCl aqueous buffer solution. Also, the optical sensing ability of the investigated nanosensors to the mentioned metal ions was investigated using steady‐state absorption and emission techniques. Significant increase in the absorption spectra and a static quenching in the emission spectra are observed upon adding various concentrations of the studied metal ions. The spectral changes as well as the observable colour changes suggest that the investigated nanosensors are suitable for simple, economic, online analysis and remote design of these toxic metal ions with fast kinetic responses. Finally, the low detection limits for all the studied metals are in good agreement with those recommended by both the US Environmental Protection Agency and World Health Organization, except for Hg2+ and Cd2+, indicating that the investigated nanosensors have hypersensitivity, selectivity and better recognition for all the studied metal ions.
Orthopalladated complexes of phosphorus ylide: Poly(N‐vinyl‐2‐pyrrolidone)‐stabilized palladium nanoparticles as reusable heterogeneous catalyst for Suzuki and Heck cross‐coupling reactions
Authors: Karami Kazem , Abedanzadeh Sedigheh , Vahidnia Omolbanin , Herves Pablo , Lipkowski Janusz , Lyczko Krzysztof 
Published: March 2017

The phosphorus ylide [Ph3PCHC(O)C6H4‐NO2–4] reacted with Pd(OAc)2 to give the C,C‐orthometallated complex [Pd{κ2(C,C)‐C6H4PPh2C(H)CO(C6H4‐NO2–4)}(μ‐OAc)]2, which underwent bridge exchange reaction with NaN3, NaCl, KBr and KI, respectively, to afford the binuclear C,C‐orthopalladated complexes [Pd{κ2(C,C)‐C6H4PPh2C(H)CO(C6H4‐NO2–4)}(μ‐X)]2 (X = N3 (1), Cl (2), Br (3) and I (4)). The complexes were identified using spectroscopy (infrared and NMR), CHNS technique and single‐crystal X‐ray structure analysis. Thereafter, palladium nanoparticles with narrow size distribution were easily prepared using the refluxing reaction of iodo‐bridged orthopalladated complex 4 with poly(N‐vinyl‐2‐pyrrolidone) (PVP) as the protecting group. The PVP‐stabilized palladium nanoparticles were characterized using a variety of techniques including X‐ray diffraction, transmission and scanning electron microscopies, energy‐dispersive X‐ray spectroscopy, inductively coupled plasma analysis and Fourier transform infrared spectroscopy. The catalytic activity of the PVP‐stabilized palladium nanoparticles was evaluated in the Suzuki reaction of phenylboronic acid and the Heck reaction of styrene with aryl halides of varying electron densities. This catalyst exhibited excellent catalytic activity for Suzuki cross‐coupling reactions in ethanol–water. Notably, aryl chlorides which are cheaper and more accessible than their bromide and iodide counterparts also reacted satisfactorily using this catalyst. After completion of reactions, the catalyst could be separated using a simple method and used many times in repeat cycles without considerable loss in its activity.
Localization of Alpha‐Keratin and Beta‐Keratin (Corneous Beta Protein) in the Epithelium on the Ventral Surface of the Lingual Apex and Its Lingual Nail in the Domestic Goose (Anser Anser f. domestica) by Using Immunohistochemistry and Raman Microspectroscopy Analysis
Authors: Skieresz‐Szewczyk Kinga , Jackowiak Hanna , Buchwald Tomasz , Szybowicz Mirosław 
Published: March 2017

ABSTRACTThe epithelium of the ventral surface of the apex of the tongue in most birds is specified by the presence of the special superficial layer called lingual nail. The aim of the present study is to determine the localization of the alpha‐keratin and beta‐keratin (corneous beta protein) in this special epithelium in the domestic goose by using immunohistochemistry staining and the Raman spectroscopy analysis. Due to lack of commercially available antibodies to detect beta‐keratin (corneous beta protein), the Raman spectroscopy was used as a specific tool to detect and describe the secondary structure of proteins. The immunohistochemical (IHC) detections reveal the presence of alpha‐keratin in all layers of the epithelium, but significant differences in the distribution of the alpha‐keratin in the epithelial layers appear. The staining reaction is stronger from the basal layer to the upper zone of the intermediate layer. The unique result is weak staining for the alpha‐keratin in the lingual nail. Applications of the Raman spectroscopy as a complementary method not only confirmed results of IHC staining for alpha‐keratin, but showed that this technique could be used to demonstrate the presence of beta‐keratin (corneous beta protein). Functionally, the localization of alpha‐keratin in the epithelium of the ventral surface of the lingual apex provides a proper scaffold for epithelial cells and promotes structural integrity, whereas the presence of beta‐keratin (corneous beta protein) in the lingual nail, described also as exoskeleton of the ventral surface of the apex, endures mechanical stress. Anat Rec, 300:1361–1368, 2017. © 2017 Wiley Periodicals, Inc.
Exploring one‐sided communication and synchronization on a non‐cache‐coherent many‐core architecture
Authors: Christgau Steffen , Schnor Bettina 
Published: March 2017

SummaryThe ongoing many‐core design aims at core counts where cache coherence becomes a serious challenge. Therefore, this paper discusses how one‐sided communication and the required process synchronization can be realized on a non‐cache‐coherent many‐core CPU. The Intel Single‐chip Cloud Computer serves as an exemplary hardware architecture. The presented approach is based on software‐managed cache coherence for MPI one‐sided communication. The prototype implementation delivers a PUT performance of up to 5 times faster than the default message‐based approach and reveals a reduction of the communication costs for the NAS Parallel Benchmarks 3‐D fast Fourier Transform by a factor of 5. Further, the paper derives conclusions for future non‐cache‐coherent architectures.
Cardiac and peripheral autonomic control in restrictive cardiomyopathy
Authors: Sayegh Ana Luiza C. , dos Santos Marcelo R. , Sarmento Adriana O. , de Souza Francis R. , Salemi Vera M.C. , Hotta Viviane T. , Marques Akothirene Cristhina D.B. , Krämer Heidrum H. , Trombetta Ivani C. , Mady Charles , Alves Maria Janieire de Nazaré Nunes 
Published: March 2017

AbstractAimsAutonomic dysfunction determines the advance of dilated cardiomyopathy (DCM) and is related to poor outcomes. However, this autonomic imbalance is unknown in patients with restrictive cardiomyopathy (RCM) even though they have similar symptoms and poor quality of life as DCM patients have. The aim of this study was to evaluate if autonomic and neurovascular controls were altered in RCM patients.Methods and resultsFifteen RCM patients, 10 DCM patients, and 10 healthy subjects were evaluated. Heart rate and blood pressure (BP) were recorded. Peripheral sympathetic activity [muscle sympathetic nerve activity (MSNA)] by microneurography and cardiac sympathetic activity by power spectrum analysis of heart rate variability. Spontaneous baroreflex sensitivity (BRS) was evaluated by the sequence method and forearm blood flow by venous occlusion plethysmography. Both cardiomyopathy groups had higher MSNA frequency (P < 0.001) and MSNA incidence (P < 0.001), higher cardiac sympathovagal balance (P < 0.02), reduced BRS for increase (P = 0.002) and for decrease in BP (P = 0.002), and lower forearm blood flow (P < 0.001) compared with healthy subjects. We found an inverse correlation between BRS for increase and decrease in BP and peripheral sympathetic activity (r = −0.609, P = 0.001 and r = −0.648, P < 0.001, respectively) and between BRS for increase and decrease in BP and cardiac sympathetic activity (r = −0.503, P = 0.03 and r = −0.487, P = 0.04, respectively).ConclusionsThe RCM patients had cardiac and peripheral autonomic dysfunctions associated with peripheral vasoconstriction. Nonetheless, the presence of normal ejection fraction underestimates the evolution of the disease and makes clinical treatment difficult. These alterations could lead to a similar cardiovascular risk as that observed in DCM patients.
Replaceable links with direct brace attachments for eccentrically braced frames
Authors: Bozkurt Mehmet Bakır , Topkaya Cem 
Published: March 2017

SummaryThis paper reports findings of an experimental study conducted on replaceable links for steel eccentrically braced frames (EBFs). A replaceable link detail which is based on splicing the directly connected braces and the beam outside the link is proposed. This detail eliminates the need to use hydraulic jacks and flame cutting operations for replacement purposes. Performance of this proposed replaceable link was studied by conducting eight nearly full‐scale EBF tests under quasi‐static cyclic loading. The link length ratio, stiffening of the link, loading protocol, connection type, bolt pretension, gap size of splice connections, and demand‐to‐capacity ratios of members were considered as the prime variables. The specimens primarily showed two types of failure modes: link web fracture and fracture of the flange at the link‐to‐brace connection. No failures were observed at the splice connections indicating that the proposed replaceable link detail provides an excellent response. The inelastic rotation capacity provided by the replaceable links satisfied the requirements of the AISC Seismic Provisions for Structural Steel Buildings (AISC341–10). The overstrength factor of the links exceeded 2.0, which is larger than the value assumed for EBF links by design provisions. The high level of overstrength resulted in brace buckling in one of the specimens demonstrating the importance of overstrength factor used for EBF links. Copyright © 2017 John Wiley & Sons, Ltd.
Integrating islands of knowledge for greater synergy and efficiency in crop research
Authors: Borrell Andrew , Reynolds Matthew 
Published: March 2017

AbstractA transnational approach to plant science is required to address global challenges such as food security and climate change. Action from the plant, crop and agricultural science communities will be required to meet these challenges. Islands of knowledge (e.g. crop, discipline, scale, environment, organization) need to be better integrated. Mapping is needed to identify gaps and make connections between these islands. Translational research, spanning from the molecular to farm scale, should be the focus. We need more `integrators' to manage complex global projects and integration should be recognized as an important skill in itself. We need to advocate teamwork over individuality ‐ and reward teams. Impact should be taken much more seriously as an outcome and we need to better understand impact pathways. Focusing on key game‐changers will more likely lead to impact rather than attempting to do everything.
Microscopic diagnosis of the leaf and stem of Piper solmsianum C.DC
Authors: Bertocco A. R. P. , Migacz I. P. , Santos V. L. P. , Franco C. R. C. , Silva R. Z. , Yunes R. A. , Cechinel‐Filho V. , Budel J. M. 
Published: March 2017

AbstractPiper solmsianum C.DC., which is popularly known as pariparoba, is a shrub that measures 1–3 m in height and it inhabits areas with wet tropical soils. The objective of this study was to analyze the leaf and stem anatomy using light microscopy, scanning electron micrographs, and energy‐dispersive X‐ray spectroscopy in order to provide information for species identification. The anatomical profile showed the following main microscopic markers: hypostomatic leaf; hypodermis layer on both sides; pearl glands; biconvex midrib shape; five collateral vascular bundles in open arc with the central bundle larger than the others; circular stem shape; collateral vascular bundles arranged in two rings; sinuous sclerenchymatic sheath in the pith; secretory idioblasts; and starch grains in the mesophyll, in the ground parenchyma of the midrib, petiole, and in the stem; and six morphotypes of calcium oxalate crystals (styloids, cuneiform, tabular crystal rosettes, cuneiform crystal rosettes, elongated square dipyramids, as well as very elongated square dipyramids).