bluuebunny/crossref_metadata_2025 huggingface dataset:
CONSTELAÇÕES PÓS-NACIONAIS E A QUESTÃO DA INTEGRAÇÃO SOCIAL
Authors: Sobottka Emil Albert
Published: July 2019

A preservação da identidade cultural coletiva, em sua tensão com a integração de novos membros, foi objeto de discussão entre Taylor e Habermas em seus textos sobre política de reconhecimento. Para ambos, a ideia de nação deixou de ter força agregadora suficiente em estados modernos. Face à diversidade fática, surge a dupla pergunta: o que pode manter a unidade de uma comunidade política nas atuais sociedades e como novos membros podem ser nela integrados? O texto trata dessa questão, reconstruindo aquele debate e as alternativas propostas pelos dois autores, levando em consideração tanto a crescente individualização das formas de vida como a migração transnacional.

POST-NATIONAL CONSTELLATIONS AND THE QUESTION OF SOCIAL INTEGRATION

The preservation of collective cultural identity in tension with the integration of new members was the topic of a discussion between Taylor and Habermas in their texts on recognition policy. For both the idea of nation per se no longer has enough aggregating force in modern states. Faced with factual diversity, two questions arise: What could help to maintain the unity of the political community in the given society? And second, how can new members be socially integrated? The text addresses these questions, reconstructing that debate and the alternatives proposed by the two authors, taking into account both the increasing individualization of life forms and transnational migration.

Keywords: Recognition. Migrations. Social integration. Citizenship.

LES CONSTELLATIONS POST-NATIONALES ET LA QUESTION DE L’INTÉGRATION SOCIALE

La préservation de l’identité culturelle collective dans sa tension avec l’intégration de nouveaux membres, a été un objet des discussions entre Taylor et Habermas dans leurs textes sur les politiques de reconnaissance. Pour les deux auteurs, l’idée de nation n’a plus assez de force d’agrégation dans les États modernes. Face à la diversité des faits, se posent deux questions: qu’est-ce qui peut maintenir l’unité d’une communauté politique dans les sociétés d’aujourd’hui? Comment peut-on y intégrer de nouveaux membres? Le texte aborde ces questions en reconstruisant le débat et les alternatives proposées par les deux auteurs en tenant compte à la fois de l’individualisation croissante des formes de vie et de la migration transnationale.

Mots-clés: Reconnaissance. Migrations. Intégration sociale. Citoyenneté.
A MUSEOLOGIA NA UNIVERSIDADE FEDERAL DA PARAÍBA
Authors: Costa Luciana Ferreira da
Published: July 2019

Este ensaio tem o propósito de descortinar a área da Museologia da Universidade Federal da Paraíba. Desde o ano de 1987, quando foi fundada a Pinacoteca da Universidade Federal da Paraíba, a universidade vem evoluindo historicamente sua tradição nos campos dos estudos, pesquisa, extensão e promoção de atividades artístico-culturais relacionados à área da Museologia, contando ainda com a criação e manutenção de diversos outros espaços museológicos. Apesar de não possuir um curso de graduação em Museologia, fica claro que a área da Museologia tem tradição diante das diversas atividades desenvolvidas na Universidade Federal da Paraíba, principalmente a partir da Ciência da Informação, através dos Cursos de Graduação em Biblioteconomia e em Arquivologia e do seu Programa de Pós-Graduação em Ciência da Informação, referente às relações pragmático-epistemológicas destas áreas. Destacam-se a presença atuante dos três grupos de pesquisa em Museologia da Universidade Federal da Paraíba com a promoção de ações de caráter internacional, articulando a universidade à sociedade para além do Estado da Paraíba e do Brasil.
Elevated N‐methyltransferase expression induced by hepatic stellate cells contributes to the metastasis of hepatocellular carcinoma via regulation of the CD44v3 isoform
Authors: Li Jie , You Song , Zhang Sheng , Hu Qing , Wang Fuqiang , Chi Xiaoqin , Zhao Wenxiu , Xie Chengrong , Zhang Changmao , Yu Yaqi , Liu Jianmin , Zhao Yue , Liu Pingguo , Zhang Yi , Wei Xujin , Li Qiu , Wang Xiaomin , Yin Zhenyu
Published: July 2019

The cross‐talk between hepatic stellate cells (HSCs) and hepatic carcinoma cells contributes to hepatocellular carcinoma (HCC) progression, but the underlying mechanism is largely unknown. We report here that activated HSCs induce upregulation of nicotinamide N‐methyltransferase (NNMT), which is known to regulate multiple metabolic pathways in hepatoma cells of the liver. High levels of NNMT in HCC tissues were positively correlated with vascular invasion, increased serum HBV‐DNA levels, and distant metastasis. In addition, functional assays showed that NNMT promoted HCC cell invasion and metastasis by altering the histone H3 methylation on 27 methylation pattern and transcriptionally activating cluster of differentiation 44 (CD44). NNMT‐mediated N6‐methyladenosine modification of CD44 mRNA resulted in the formation of a CD44v3 splice variant, while its product 1‐methyl‐nicotinamide stabilized CD44 protein by preventing ubiquitin‐mediated degradation. Finally, NNMT was also shown to be a target of statins that inhibited metastasis of hepatoma cells. Taken together, our study shows for the first time that the NNMT/CD44v3 axis regulates HCC metastasis and presents NNMT as a promising prognostic biomarker and therapeutic target for HCC.
Biallelic CACNA2D2 variants in epileptic encephalopathy and cerebellar atrophy
Authors: Punetha Jaya , Karaca Ender , Gezdirici Alper , Lamont Ryan E. , Pehlivan Davut , Marafi Dana , Appendino Juan P. , Hunter Jill V. , Akdemir Zeynep C. , Fatih Jawid M. , Jhangiani Shalini N. , Gibbs Richard A. , Innes A. Micheil , Posey Jennifer E. , Lupski James R.
Published: July 2019

Objective

To characterize the molecular and clinical phenotypic basis of developmental and epileptic encephalopathies caused by rare biallelic variants in CACNA2D2.

Methods

Two affected individuals from a family with clinical features of early onset epileptic encephalopathy were recruited for exome sequencing at the Centers for Mendelian Genomics to identify their molecular diagnosis. GeneMatcher facilitated identification of a second family with a shared candidate disease gene identified through clinical gene panel‐based testing.

Results

Rare biallelic CACNA2D2 variants have been previously reported in three families with developmental and epileptic encephalopathy, and one family with congenital ataxia. We identified three individuals in two unrelated families with novel homozygous rare variants in CACNA2D2 with clinical features of developmental and epileptic encephalopathy and cerebellar atrophy. Family 1 includes two affected siblings with a likely damaging homozygous rare missense variant c.1778G>C; p.(Arg593Pro) in CACNA2D2. Family 2 includes a proband with a homozygous rare nonsense variant c.485_486del; p.(Tyr162Ter) in CACNA2D2. We compared clinical and molecular findings from all nine individuals reported to date and note that cerebellar atrophy is shared among all.

Interpretation

Our study supports the candidacy of CACNA2D2 as a disease gene associated with a phenotypic spectrum of neurological disease that include features of developmental and epileptic encephalopathy, ataxia, and cerebellar atrophy. Age at presentation may affect apparent penetrance of neurogenetic trait manifestations and of a particular clinical neurological endophenotype, for example, seizures or ataxia.
Tunable Emission in Heteroepitaxial Ln‐SURMOFs
Authors: Chen Dong‐Hui , Haldar Ritesh , Neumeier Beatrice Lilli , Fu Zhi‐Hua , Feldmann Claus , Wöll Christof , Redel Engelbert
Published: July 2019

By using a layer‐by‐layer (LbL) approach, lanthanide‐based, monolithic metal–organic framework (MOF) thin films are fabricated for optical applications. In particular, the LbL approach allows manufacturing of heteroepitaxial Tb(III)‐Eu(III)(BTC) coatings with precise thickness control. Adjusting the Tb(III)‐to‐Eu(III) ratio allows tuning of the emission color. The hetero‐multilayer architecture makes it possible to suppress the direct Tb(III)‐to‐Eu(III) energy transfer, an unwanted phenomenon present in the corresponding mixed‐metal bulk MOF structures. The resulting Ln‐MOF thin films, or Ln‐surface‐anchored MOFs (SURMOFs), are characterized by X‐ray diffraction, infra‐red reflection absorption spectroscopy, UV–vis, and photoluminescence measurements. The results demonstrate that the heteroepitaxial SURMOF architectures carry huge potential for fabricating optical coatings for a wide range of applications.
Improved Thermoelectric Performance of Eco‐Friendly β‐FeSi2–SiGe Nanocomposite via Synergistic Hierarchical Structuring, Phase Percolation, and Selective Doping
Authors: Liu Naiming , Rezaei S. Emad , Jensen Wade Aaron , Song Shaowei , Ren Zhifeng , Esfarjani Keivan , Zebarjadi Mona , Floro Jerrold Anthony
Published: July 2019

A β‐FeSi2–SiGe nanocomposite is synthesized via a react/transform spark plasma sintering technique, in which eutectoid phase transformation, Ge alloying, selective doping, and sintering are completed in a single process, resulting in a greatly reduced process time and thermal budget. Hierarchical structuring of the SiGe secondary phase to achieve coexistence of a percolated network with isolated nanoscale inclusions effectively decouples the thermal and electrical transport. Combined with selective doping that reduces conduction band offsets, the percolation strategy produces overall electron mobilities 30 times higher than those of similar materials produced using typical powder‐processing routes. As a result, a maximum thermoelectric figure of merit ZT of ≈0.7 at 700 °C is achieved in the β‐FeSi2–SiGe nanocomposite.
A Wearable Sensor Using Structured Silver‐Particle Reinforced PDMS for Radial Arterial Pulse Wave Monitoring
Authors: Fu Yu , Zhao Shuai , Wang Liangqi , Zhu Rong
Published: July 2019

Human pulse signals contain important and useful physiological information for the auxiliary diagnosis of cardiovascular disease. Here, a wearable pulse sensor based on piezo‐thermic transduction is reported using a structured silver‐particle reinforced polydimethylsiloxane (PDMS) membrane, for monitoring radial arterial pulse waves. The structured silver‐particle reinforced PDMS membrane is optimally designed to meet the specific requirements on sensitivity, linearity, and effective preload measuring range for pulse detection by adjusting the air gap volume fraction and silver particle volume fraction of the structured material. The sensor is endowed with high sensitivity, good linearity in preload measuring range, allowing to detect the subtle pulse waveforms of subjects at different ages under different contact pressures, such as superficial (Fu), medium (Zhong) and deep (Chen). The developed pulse device provides a promising approach for homecare pulse monitoring.
A flexible air separation process: 2. Optimal operation using economic model predictive control
Authors: Caspari Adrian , Offermanns Christoph , Schäfer Pascal , Mhamdi Adel , Mitsos Alexander
Published: July 2019

The penetration of renewable electricity promises an economic advantage for flexible operation of energy‐intense processes. One way to achieve flexible operation is economic model predictive control (eNMPC), where an economic dynamic optimization problem is directly solved at controller level taking into account a process model and operational constraints. We apply eNMPC in silico to an air separation process with an integrated liquefier and liquid‐assist operation. We use a mechanistic dynamic model as both controller model and plant surrogate. We conduct a closed‐loop case study over a time horizon of 2 days with historical electricity prices and input disturbances. We solve the dynamic optimization problems in DyOS. Compared to the optimal steady‐state operation, the eNMPC operating strategy gives a significant improvement of 14%. We further show that the eNMPC enables economic improvements similar to an idealized quasistationary scheduling. While the eNMPC provides control profiles qualitatively similar to those obtained from deterministic global optimization of quasistationary scheduling, the eNMPC satisfies the product purity constraints all the time whereas the quasistationary scheduling sometimes fails to do so. The eNMPC applies local optimization methods and achieves profiles similar to the scheduling solved using deterministic global optimization methods over the complete closed‐loop simulation time horizon.
Epidemiology of achondroplasia: A population‐based study in Europe
Authors: Coi Alessio , Santoro Michele , Garne Ester , Pierini Anna , Addor Marie‐Claude , Alessandri Jean‐Luc , Bergman Jorieke E. H. , Bianchi Fabrizio , Boban Ljubica , Braz Paula , Cavero‐Carbonell Clara , Gatt Miriam , Haeusler Martin , Klungsøyr Kari , Kurinczuk Jennifer J. , Lanzoni Monica , Lelong Nathalie , Luyt Karen , Mokoroa Olatz , Mullaney Carmel , Nelen Vera , Neville Amanda J. , O'Mahony Mary T. , Perthus Isabelle , Rankin Judith , Rissmann Anke , Rouget Florence , Schaub Bruno , Tucker David , Wellesley Diana , Wisniewska Katarzyna , Zymak‐Zakutnia Nataliia , Barišić Ingeborg
Published: July 2019

Achondroplasia is a rare genetic disorder resulting in short‐limb skeletal dysplasia. We present the largest European population‐based epidemiological study to date using data provided by the European Surveillance of Congenital Anomalies (EUROCAT) network. All cases of achondroplasia notified to 28 EUROCAT registries (1991–2015) were included in the study. Prevalence, birth outcomes, prenatal diagnosis, associated anomalies, and the impact of paternal and maternal age on de novo achondroplasia were presented. The study population consisted of 434 achondroplasia cases with a prevalence of 3.72 per 100,000 births (95%CIs: 3.14–4.39). There were 350 live births, 82 terminations of pregnancy after prenatal diagnosis, and two fetal deaths. The prenatal detection rate was significantly higher in recent years (71% in 2011–2015 vs. 36% in 1991–1995). Major associated congenital anomalies were present in 10% of cases. About 20% of cases were familial. After adjusting for maternal age, fathers >34 years had a significantly higher risk of having infants with de novo achondroplasia than younger fathers. Prevalence was stable over time, but regional differences were observed. All pregnancy outcomes were included in the prevalence estimate with 80.6% being live born. The study confirmed the increased risk for older fathers of having infants with de novo achondroplasia.
Efficient protocols and methods for high‐throughput utilization of the Collaborative Cross mouse model for dissecting the genetic basis of complex traits
Authors: Abu‐Toamih Atamni Hanifa J. , Iraqi Fuad A.
Published: July 2019

The Collaborative Cross (CC) mouse model is a next‐generation mouse genetic reference population (GRP) designated for a high‐resolution quantitative trait loci (QTL) mapping of complex traits during health and disease. The CC lines were generated from reciprocal crosses of eight divergent mouse founder strains composed of five classical and three wild‐derived strains. Complex traits are defined to be controlled by variations within multiple genes and the gene/environment interactions. In this article, we introduce and present variety of protocols and results of studying the host response to infectious and chronic diseases, including type 2 diabetes and metabolic diseases, body composition, immune response, colorectal cancer, susceptibility to Aspergillus fumigatus, Klebsiella pneumoniae, Pseudomonas aeruginosa, sepsis, and mixed infections of Porphyromonas gingivalis and Fusobacterium nucleatum, which were conducted at our laboratory using the CC mouse population. These traits are observed at multiple levels of the body systems, including metabolism, body weight, immune profile, susceptibility or resistance to the development and progress of infectious or chronic diseases. Herein, we present full protocols and step‐by‐step methods, implemented in our laboratory for the phenotypic and genotypic characterization of the different CC lines, mapping the gene underlying the host response to these infections and chronic diseases. The CC mouse model is a unique and powerful GRP for dissecting the host genetic architectures underlying complex traits, including chronic and infectious diseases.
Gastric emphysema with portal emphysema due to superior mesenteric artery syndrome developing septic shock: a case report
Authors: Muratsu Arisa , Muroya Takashi , Kishimoto Masanobu , Kuwagata Yasuyuki
Published: July 2019

Background

Superior mesenteric artery syndrome (SMAS) is often associated with gastric dilatation but, very rarely, it can be associated with gastric emphysema. In addition, there are few reported cases accompanied by septic shock.

Case Presentation

A 64‐year‐old man was transferred to our hospital with vomiting and abdominal distention. He went into shock and showed impaired consciousness. Blood biochemistry tests showed elevated levels of C‐reactive protein. An abdominal computed tomography scan revealed a dilated stomach and proximal duodenum, and constriction of the third portion of the duodenum with gastric and portal emphysema. We thus diagnosed him with gastric and portal emphysema associated with SMAS that progressed to septic shock. We treated him conservatively by giving antibiotics and undertaking gastric drainage and feeding by way of the jejunum through a double elementary diet tube.

Conclusion

This is the first report to describe a case of SMAS with gastric and portal emphysema that progressed to septic shock.
Nature and Topology of Metal–Oxygen Binding Sites in Zeolite Materials:17O High‐Resolution EPR Spectroscopy of Metal‐Loaded ZSM‐5
Authors: Morra Elena , Signorile Matteo , Salvadori Enrico , Bordiga Silvia , Giamello Elio , Chiesa Mario
Published: July 2019

Determining structural models is pivotal to the rational understanding and development of heterogeneous catalytic systems. A paradigmatic case is represented by open‐shell metals supported on oxides, where the catalytic properties crucially depend on the nature of the metal–oxygen bonds and the extent of charge and spin transfer. Through a combination of selective17O isotopic enrichment and the unique properties of open‐shell s‐state monovalent Group 12 cations, we derive a site‐specific topological description of active sites in an MFI zeolite. We show that just a few selected sites out of all possible are populated and that the relative occupancies depend on the specific properties of the metal, and we provide maps of charge and spin transfer at the metal–oxygen interface. This approach is not restricted to zeotype materials, rather it is applicable to any catalysts supported on oxygen‐containing materials.
Biopharmaceutics classification and intestinal absorption of chikusetsusaponin IVa
Authors: Zhang Wenzhou , Liu Hui , Liu Chongfeng
Published: July 2019

The objective of this study was to investigate the absorption behavior of chikusetsusaponin IVa (CHS‐IVa) in the rat intestine using single‐pass intestinal perfusion (SPIP) and to classify CHS‐IVa into the biopharmaceutics classification system (BCS). The equilibrium solubility of CHS‐IVa was determined by the shaker method. The absorption mechanism of CHS‐IVa in the intestine was studied by comparing the Peff of different concentrations of CHS‐IVa. The intestinal site dependence of CHS‐IVa absorption was studied by comparing the Peff of the same concentration of CHS‐IVa in different intestinal segments. The relationship between CHS‐IVa and intestinal efflux protein was studied by perfusion with an efflux protein inhibitor. The permeability of CHS‐IVa was investigated by comparing the Peff of CHS‐IVa and the reported value. The solubility of CHS‐IVa over the pH range 1.0–7.5 was 14.4 ± 0.29 to 16.9 ± 0.34 mg/ml. The Peff of CHS‐IVa in the duodenum was 1.76 × 10−3 to 2.00 × 10−3 cm/min. The Peff of CHS‐IVa in the jejunum was 1.26 × 10−3 to 1.39 × 10−3 cm/min. The Peff of CHS‐IVa in the ileum was 1.25 × 10−3 to 1.31 × 10−3 cm/min. The Peff of CHS‐IVa in the colon was 1.02 × 10−3 to 1.08 × 10−3 cm/min. There was no statistical difference of the Peff in the four segments at different CHS‐IVa concentrations. The Peff of CHS‐IVa (0.07, 0.7 and 7.0 mg/ml) were all notably smaller than the reported Peff (3.00 × 10−3 cm/min) in the jejunum. The Peff of CHS‐IVa was not influenced by verapamil (P‐gp inhibitor), indomethacin (MRP inhibitor) and pantoprazole (BCRP inhibitor). CHS‐IVa was classified as high solubility, low permeability and BCS III. The main absorptive tracts were the upper intestinal tracts and the rank order of intestinal permeability was duodenum > jejunum ≈ ileum > colon. The transport mechanism of CHS‐IVa in all intestinal segments might be primarily passive transport. CHS‐IVa was not a substrate of P‐gp, MRP and BCRP.
Teaching joint attention skills to adolescents and young adults with autism using multiple exemplars and script‐fading procedures
Authors: Rozenblat Eric , Reeve Kenneth F. , Townsend Dawn B. , Reeve Sharon A. , DeBar Ruth M.
Published: July 2019

The purpose of the current study was to teach four adolescents and young adults with autism to initiate bids for joint attention using multiple exemplar training, textual prompts, audio scripts, and script‐fading procedures. A multiple‐probe across‐participants design was used. Three training categories and one generalization probe category of stimuli were assigned to each participant. The results demonstrated that all four participants learned to initiate bids for joint attention under training conditions, although using scripted, previously scripted, and generative language. Responding generalized to the nontraining stimuli within the training categories. Three of the four participants also demonstrated generalized responding across stimuli from the probe category. Acquisition of such responses may help increase positive social interactions for adolescents and young adults with autism in the future.
Metabolites of the Anaerobic Degradation of n‐Hexane by Denitrifying Betaproteobacterium Strain HxN1
Authors: Küppers Julian , Mitschke Nico , Heyen Simone , Rabus Ralf , Wilkes Heinz , Christoffers Jens
Published: July 2019

The constitutions of seven metabolites formed during anaerobic degradation of n‐hexane by the denitrifying betaproteobacterium strain HxN1 were elucidated by comparison of their GC and MS data with those of synthetic reference standards. The synthesis of 4‐methyloctanoic acid derivatives was accomplished by the conversion of 2‐methylhexanoyl chloride with Meldrum's acid. The β‐oxoester was reduced with NaBH4, the hydroxy group was eliminated, and the double bond was displaced to yield the methyl esters of 4‐methyl‐3‐oxooctanoate, 3‐hydroxy‐4‐methyloctanoate, (E)‐4‐methyl‐2‐octenoate, and (E)‐ and (Z)‐4‐methyl‐3‐octenoate. The methyl esters of 2‐methyl‐3‐oxohexanoate and 3‐hydroxy‐2‐methylhexanoate were similarly prepared from butanoyl chloride and Meldrum's acid. However, methyl (E)‐2‐methyl‐2‐hexenoate was prepared by Horner–Wadsworth–Emmons reaction, followed by isomerization to methyl (E)‐2‐methyl‐3‐hexenoate. This investigation, with the exception of 4‐methyl‐3‐oxooctanoate, which was not detectable in the cultures, completes the unambiguous identification of all intermediates of the anaerobic biodegradation of n‐hexane to 2‐methyl‐3‐oxohexanoyl coenzyme A (CoA), which is then thiolytically cleaved to butanoyl‐CoA and propionyl‐CoA; these two metabolites are further transformed according to established pathways.
Trolox‐induced cardiac differentiation is mediated by the inhibition of Wnt/β‐catenin signaling in human embryonic stem cells
Authors: Choe Mu Seog , Yeo Han Cheol , Bae Chang Min , Han Ho Jae , Baek Kyung Min , Kim Joong Sun , Lim Kyung Seob , Shin In‐Sik , Chang Woochul , Yun Seung Pil , Lee Ho Jin , Lee Min Young
Published: July 2019

Cardiac differentiation of human pluripotent stem cells may be induced under chemically defined conditions, wherein the regulation of Wnt/β‐catenin pathway is often desirable. Here, we examined the effect of trolox, a vitamin E analog, on the cardiac differentiation of human embryonic stem cells (hESCs). 6‐Hydroxy‐2,5,7,8‐tetramethylchromane‐2‐carboxylic acid (Trolox) significantly enhanced cardiac differentiation in a time‐ and dose‐dependent manner after the mesodermal differentiation of hESCs. Trolox promoted hESC cardiac differentiation through its inhibitory activity against the Wnt/β‐catenin pathway. This study demonstrates an efficient cardiac differentiation method and reveals a novel Wnt/β‐catenin regulator.
A case of gabapentin overdose induced rhabdomyolysis requiring renal replacement therapy
Authors: Qiu Xiaoliang , Tackett Eva , Khitan Zeid
Published: July 2019

We report a rare case with gabapentin overdose that caused severe rhabdomyolysis and acute tubular necrosis which required renal replacement therapy. A better awareness of its adverse effect and a close follow‐up of laboratory tests are recommended. Prescribers should also be aware of high‐risk population and monitor for signs of abuse.
Successful percutaneous femoral extraction of a detached tricuspid valve‐in‐valve balloon delivery system
Authors: Sidhu Baldeep S. , Gould Justin , Sieniewicz Benjamin , Porter Bradley , Prendergast Bernard , Redwood Simon , Rinaldi Christopher A.
Published: July 2019

We shall discuss a patient who underwent a tricuspid valve‐in‐valve implantation for a failing bioprosthetic valve replacement. The procedure was complicated by detachment of the valve deployment apparatus which was removed in its entirety, using percutaneous extraction techniques. We believe this was the first ever case to report such a complication.
Nitrogen‐Doped Carbon‐Coated Bimetal Selenides for High‐Performance Lithium‐Ion Storage through the Self‐Accommodation of Volume Change
Authors: Sun Weiwei , Zhang Yanfeng , Wang Yong
Published: July 2019

Owing to the problem of volume expansion during cycling, metal selenides with a high capacity and long‐term cyclability are still very exploratory. In this work, we fabricate a Co/Zn‐based multi‐metallic metal organic framework at room temperature, and then select one‐step selenization under an inert atmosphere to obtain the nitrogen‐doped carbon‐coated bimetal selenide composites. Originating from the nanoparticles‐assembled porous structure, the in situ formed nitrogen‐doped carbon coating, and the self‐accommodation effect based on two components at stepwise Li reaction potentials, the nitrogen‐doped carbon‐coated bimetal selenide (Co/Zn‐Se@NC) anodes deliver improved electrochemical properties. In particular, with the molar ratio (Co/Zn) changing, the Co/Zn‐Se@NC‐1 at Co/Zn=9 : 1 achieves high initial capacities (discharge/charge: 1040/788 mAh g−1) with 836 mAh g−1 retained after 300 cycles. More efforts should be put into the exploration of mixed metal selenides and their composites with self‐accommodation effects for applications in energy storage.
Porous and Hierarchically Structured Ammonium Nickel Molybdate/Nickel Sulfide/Reduced Graphene Oxide Ternary Composite as High Performance Electrode for Supercapacitors
Authors: Ke Tai‐Chun , Vedhanarayanan Balaraman , Shao Li‐Dong , Lin Tsung‐Wu
Published: July 2019

A novel ternary composite composed of ammonium nickel molybdate, nickel sulfide and reduced graphene oxide (ANM‐NiS‐rGO) has been synthesized by using a two‐step hydrothermal method for the first time. The morphological analysis reveals that the rGO nanosheets in the ternary composite are decorated with the electrochemically active NiS nanoparticles and ANM microflowers. Because the ternary composite exhibits a porous and 3D flower‐like structures, it possesses the large surface area of 135 m2 g−1 and high pore volume of 0.258 cm3 g−1. On the other hand, ANM‐NiS‐rGO was investigated as positive electrode for battery‐type hybrid supercapacitor that shows a specific capacity of 150 mAh g−1 at a current density of 1 A g−1. For comparison, the corresponding components such as ANM‐rGO and NiS‐rGO were also investigated. It was found that the ternary composite shows a higher specific capacity, better rate capability and cyclic stability compared with the binary composites as the former possesses higher surface area and electrical conductivity. To demonstrate the practical applications, a hybrid supercapacitor was fabricated by using ANM‐NiS‐rGO and rGO as the positive and negative electrodes, respectively. This device can be operated in the voltage range of 0–1.75 V and shows a high specific capacity of 28 mAh g−1 at a current density of 2 Ag−1. Furthermore, the device delivers a maximum energy density of 24.2 Wh kg−1 at a power density of 1.75 kW kg−1. These results suggest that the porous and hierarchically structured ANM‐NiS‐rGO has high potential in practical energy storage applications.
An efficient scheme for SDN state consistency verification in cloud computing environment
Authors: Wang Xiaoyan , Chen Xingshu , Wang Yitong , Ge Long
Published: July 2019

Software‐defined networking (SDN) decouples the control and data planes to simplify network management and function deployment. SDN provides a solution for managing large‐scale virtual networks in the cloud environment. However, in the process of SDN network update, various attacks can lead to network state inconsistency. In this paper, a comprehensive and efficient verification scheme is proposed to defend the security threats and guarantee the network state consistency in the cloud environment. The scheme verifies the consistency of network update from two stages of network update request and response. Firstly, the flow path model and the security space are abstracted to quickly verify whether the network request is allowed. Then, a novel forwarding path probing and verification method is designed to validate the actual forwarding path and locate the abnormal path in real time. With the two‐stage verification, the scheme can prevent the spread of illegal flow rules and ensure the correct delivery and execution of flow rules. Finally, we carry out a series of experiments in OpenStack. The results show that the proposed scheme can detect security threats and label the abnormal forwarding path in real time to ensure the network state consistency, while introducing negligible performance overhead.
Efficient privacy‐preserving scheme supporting disjunctive multi‐keyword search with ranking
Authors: Handa Rohit , Rama Krishna C. , Aggarwal Naveen
Published: July 2019

Information storage and retrieval from the cloud is growing continuously unabated. The cost‐efficient solutions offered by the cloud providers to the end‐users have motivated them to outsource their confidential data to the cloud. Outsourcing confidential data leads to enhanced privacy risks due to disclosure of sensitive information to adversaries. To handle this disclosure of information, encryption is preferred, but it hinders the efficient searching on the documents. The existing searchable encryption schemes either focused on optimization of search time or improvement of search efficiency. To solve this trade‐off between search time and search efficiency, we propose an efficient disjunctive search scheme using non‐positional inverted index. To the best of our knowledge, there is no searchable encryption scheme based on the non‐positional inverted index in the literature. Thus, we first propose a basic scheme based on a non‐positional inverted index to search the desired keywords and highlight its inefficiency in terms of high search time required. To perform efficient searching, an extended search scheme is proposed using keyword binning, which reduces comparisons required and improves the search time. The extended search scheme has recall of 100% and precision 99.75%. The experimental analysis of the proposed scheme on real datasets proves that the proposed scheme is privacy‐preserving and efficient.
Parallel particle swarm optimization classification algorithm variant implemented with Apache Spark
Authors: Al‐Sawwa Jamil , Ludwig Simone A.
Published: July 2019

With the rapid development of technologies such as the internet, the amount of data that are collected or generated in many areas such as in the agricultural, biomedical, and finance sectors poses challenges to the scientific community because of the volume and complexity of the data. Furthermore, the need of analysis tools that extract useful information for decision support has been receiving more attention in order for researchers to find a scalable solution to traditional algorithms. In this paper, we proposed a scalable design and implementation of a particle swarm optimization classification (SCPSO) approach that is based on the Apache Spark framework. The main idea of the SCPSO algorithm is to find the optimal centroid for each target label using particle swarm optimization and then assign unlabeled data points to the closest centroid. Two variants of SCPSO, SCPSO‐F1 and SCPSO‐F2, were proposed based on different fitness functions, which were tested on real data sets in order to evaluate their scalability and performance. The experimental results revealed that SCPSO‐F1 and SCPSO‐F2 scale very well with increasing data set sizes and the speedup of SCPSO‐F2 is almost identical to the linear speedup while the speedup of SCPSO‐F1 is very close to the linear speedup. Thus, SCPSO‐F1 and SCPSO‐F2 can be efficiently parallelized using the Apache Spark framework.
DDL‐QoS: A dynamic I/O scheduling strategy of QoS for HPC applications
Authors: Yang Ying , Shi Xuanhua , Liu Wei , Jin Hai , Hua Yusheng , Jiang Yan
Published: July 2019

With the increasing cloud‐trend of high‐performance computing (HPC), more users submit their applications simultaneously to the platform and wish they could finish before the deadline. Moreover, due to the severe holistic performance degradation caused by I/O contention, a deadline‐sensitive I/O scheduler is needed to allocate storage resources according to the requirements of applications and resultantly guarantee the quality of service (QoS) of concurrently running applications. In this paper, we first explore the bandwidth allocation phenomenon caused by interference in applications through the modeling of historical data, and then we quote a metric called random percentage that can represent the random degree of the applications and be used to guide I/O scheduling in the later stage. We design a dynamic I/O scheduler named DDL‐QoS that uses solid state drives(SSDs) as QoS guarantee to minimize interference and ensure applications meet their deadline. The potential of our design is that the greater the I/O interference, the greater the performance improvement, but this performance improvement will be limited by the physical properties of the storage hardware.
From fine‐needle aspiration cytology to fluorescent in‐situ hybridization in an unusual case of pharyngeal synovial sarcoma
Authors: Paolino Gaetano , Girolami Ilaria , Bernasconi Riccardo , Beccari Serena , Marchioni Daniele , Molteni Gabriele , De Robertis Riccardo , Ghimenton Claudio , Caliò Anna , Brunelli Matteo , Eccher Albino
Published: July 2019

Synovial sarcoma arising in the pharynx is a rare entity, with very few cases described in literature, mainly as surgical‐oriented case reports. We report the case of a healthy 20‐year old man who presented with a painless right neck mass, clinically suspicious for a thyroid nodule. Ultrasound scan and fine‐needle aspiration cytology failed to provide a definitive result, although suggesting a mesenchymal proliferation, in accordance with magnetic resonance imaging findings. Therefore, the lesion was removed with a minimally invasive surgical intervention. Definitive histologic and immunohistochemical examination of the surgical specimen revealed a biphasic synovial sarcoma, further validated by the detection of SS18 gene rearrangement on fluorescent in‐situ hybridization examination. Although rarely, synovial sarcoma may arise in the pharynx. Radiological, cytological, histological and molecular findings are needed along each step of the diagnostic process.
Parasite infections in a social carnivore: Evidence of their fitness consequences and factors modulating infection load
Authors: Ferreira Susana Carolina Martins , Hofer Heribert , Madeira de Carvalho Luis , East Marion L.
Published: July 2019

There are substantial individual differences in parasite composition and infection load in wildlife populations. Few studies have investigated the factors shaping this heterogeneity in large wild mammals or the impact of parasite infections on Darwinian fitness, particularly in juveniles. A host's parasite composition and infection load can be shaped by factors that determine contact with infective parasite stages and those that determine the host's resistance to infection, such as abiotic and social environmental factors, and age. Host–parasite interactions and synergies between coinfecting parasites may also be important. We test predictions derived from these different processes to investigate factors shaping infection loads (fecal egg/oocyte load) of two energetically costly gastrointestinal parasites: the hookworm Ancylostoma and the intracellular Cystoisospora, in juvenile spotted hyenas (Crocuta crocuta) in the Serengeti National Park, in Tanzania. We also assess whether parasite infections curtail survival to adulthood and longevity. Ancylostoma and Cystoisospora infection loads declined as the number of adult clan members increased, a result consistent with an encounter‐reduction effect whereby adults reduced encounters between juveniles and infective larvae, but were not affected by the number of juveniles in a clan. Infection loads decreased with age, possibly because active immune responses to infection improved with age. Differences in parasite load between clans possibly indicate variation in abiotic environmental factors between clan den sites. The survival of juveniles (<365 days old) to adulthood decreased with Ancylostoma load, increased with age, and was modulated by maternal social status. High‐ranking individuals with low Ancylostoma loads had a higher survivorship during the first 4 years of life than high‐ranking individuals with high Ancylostoma loads. These findings suggest that high infection loads with energetically costly parasites such as hookworms during early life can have negative fitness consequences.
Community regulation models as a framework for direct and indirect effects of climate change on species distributions
Authors: Wallingford Piper D. , Sorte Cascade J. B.
Published: July 2019

Existing projections of climate change impacts focus primarily on direct abiotic impacts on individuals and populations. However, these models often ignore species interactions, which are vital for determining community composition and structure. To evaluate both direct and indirect effects of climate change on species distributions, we applied the Menge–Sutherland model, which describes the relative role of predation and environmental stress in regulating community structure. Using a space‐for‐time approach, we tested the predictions that (1) predators are more strongly impacted by increasing environmental stress than prey (as described in the Menge–Sutherland model) and (2) incorporating indirect (predator) effects increases our ability to predict impacts of increased temperature on prey distributions. We surveyed vertical distributions of predators (sea stars) and a foundational prey species (mussels) at 20 intertidal sites spanning a thermal gradient along the West Coast of the United States. Using generalized linear models and structural equation models, we found that as temperature increased, the upper limits of foundational prey species decreased (a direct effect), while prey lower limits also shifted downward, due to an indirect effect of temperature on predator distributions. Under future climate change, mussel ranges may undergo vertical shifts toward subtidal habitats, allowing for localized persistence of mussels and associated species. Our model comparisons indicate that this framework—incorporating both direct and indirect environmental stress effects within a classic community regulation model—can improve prediction of responses to warming. Community regulation models could be expanded to inform management and conservation efforts during unprecedented climate and ecological change.
Differential impacts of soil microbes on native and co‐occurring invasive tree species
Authors: Wróbel Aleksandra , Crone Elizabeth E. , Zwolak Rafał
Published: July 2019

The Janzen‐Connell effect is often generated by interactions between trees and soil microbes while the enemy release hypothesis states that invasive species are released from regulation by natural enemies. Thus, the strength of the Janzen‐Connell effect could differ between native vs. nonnative plants. We tested this hypothesis with congeneric pairs of invasive and native tree species in Europe: boxelder (Acer negundo) vs. Norway maple (A. platanoides), and Northern red oak (Quercus rubra) vs. pedunculate oak (Q. robur). We conducted greenhouse experiments using soil sterilization treatments, field experiments on distance‐dependent germination, and field surveys of early life stages of the focal species. Greenhouse and field experiments demonstrated patterns consistent with Janzen‐Connell effect that is most likely caused by negative distance dependence in seed germination and stem growth which was found in both genera of the native, but not the invasive trees. Soil sterilization experiments suggested that these effects are driven by interactions with soil biota. Field surveys revealed the Janzen‐Connell pattern in the distribution of seedlings and saplings of the native, but not the invasive Acer species. Our findings indicate that weakened Janzen‐Connell effect might contribute to successful invasions of certain nonnative plant species.
Electric vehicle integration into power systems
Authors: Ota Yutaka
Published: July 2019

Sales of electric vehicle are rapidly growing worldwide. Vehicle grid integration is important for mitigating impact of charging demand on the distribution feeders, realizing renewable powered charging from the rooftop photovoltaic and wind power generation, and contributing to the Vehicle‐to‐Grid ancillary services for the power systems. This article reviews current trends of the vehicle grid integration R&D. Future prospective is also pointed out on the key issues such as an electrical interface, multiple services integration, and the electric vehicle living demonstration for open innovation.
Proton Transportation Behavior in Lanthanide Tartrate Metal‐Organic Frameworks
Authors: Fairley Melissa , Qin Lei , Zheng Yan‐Zhen , Zheng Zhiping
Published: July 2019

A series of lanthanide tartrate metal‐organic frameworks (MOFs) were synthesized and structurally characterized. These include the three‐dimensional (3D) frameworks {[Ln(C4H4O6)(H2O)3]Cl·2H2O}n (C4H4O6), tartrate; Ln = La (1), Nd (2), and Pr (3) and the 2D framework {[Ce2(C4H4O6)3(H2O)5]·2.5H2O}n (4). Using compounds 3 and 4 as representatives, proton conductivities of the two different kinds of MOFs were measured. The extensive hydrogen bonding interactions involving the tartrate ligands, the aqua ligands, and the water molecules inside and outside the porous structures are believed to be responsible for the observed proton conduction, likely via the Grotthuss mechanism in both cases.
The Interconnection of Two Positive Charges by Conjugation and Cross‐Conjugation in Bis‐Quinolinium Ethynyls
Authors: Batsyts Sviatoslav , Hübner Eike G. , Namyslo Jan C. , Schmidt Andreas
Published: July 2019

1,4‐Diethynylbenzene was used as conjugated all‐carbon and rigid spacer between the 2‐, 3‐ and 4‐positions of two 1‐methylquinolinium rings. Thus, for a systematic study, a series of dicationic salts with 2,2‐, 3,3‐, 4,4‐, 3,2‐, and 3,4‐interconnections of the two positive charges was prepared, in which all even‐numbered substitution patterns are conjugated, and all odd‐numbered substitution patterns are cross‐conjugated. As a consequence, conjugated/conjugated, cross‐conjugated/cross‐conjugated, and conjugated/cross‐conjugated dications have been prepared. The different combinations result in considerably different charge distributions of the positive charges within the π‐electron systems according to the rules of resonance which translate into different DFT‐calculated frontier orbital profiles and spectroscopic properties such as 13C NMR chemical shifts, IR and Raman absorptions, and the measured as well as calculated UV/Vis spectra.
“I think you understand me.” Studying the associations between actual, assumed, and perceived understanding within couples
Authors: Hinnekens Céline , Stas Lara , Gistelinck Fien , Verhofstadt Lesley L.
Published: July 2019

The current study examined the associations between actual, assumed, and perceived understanding and partners’ levels of dyadic adjustment. One hundred fifty‐two couples provided questionnaire data (assumed and perceived understanding), participated in a videotaped conflict interaction, and in a video‐review task to assess actual understanding (empathic accuracy). The data were analyzed by means of the Actor‐Partner Interdependence Model. The results suggest that (a) some aspects of how well someone assumes that (s)he has understood the partner during a preceding conflict interaction were positively associated with his/her own objective level of understanding (actor effect), (b) that someone's perception of how understood (s)he feels was not associated with the partner's objective level of understanding (partner effect), and (c) perceived understanding, but not actual understanding, was positively associated with dyadic adjustment.
Flower‐like Ni(II)‐based Metal‐organic Framework‐decorated Ag Nanoparticles: Fabrication, Characterization and Electrochemical Detection of Glucose
Authors: Peng Xuerong , Wan Yue , Wang Yanying , Liu Tao , Zou Ping , Wang Xianxiang , Zhao Qingbiao , Ding Fang , Rao Hanbing
Published: July 2019

Glucose concentration monitoring is important for the prevention, diagnosis and treatment of diabetes. In this work, a composite material of AgNPs/MOF‐74(Ni) was prepared for electrochemical determination of glucose. AgNPs/MOF‐74(Ni) was characterized by X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X‐ray photoelectron spectroscopy (XPS). The electrochemical properties of the glassy carbon electrodes modified with the AgNPs/MOF‐74(Ni) composites were characterized by cyclic voltammetry (CV) and current‐time curve (I‐t curve) with three electrode system. The determination of glucose with the electrode modified by AgNPs/MOF‐74(Ni) has a linear range of 0.01∼4 mM with the correlation coefficient (R2) of 0.994. The detection limit is 4.7 μM (S/N=3) and the sensitivity is 1.29 mA ⋅ mM−1 ⋅ cm−2. In addition, this sensing system possesses reasonable reproducibility and stability. The good performance of electrochemical determination for glucose is attributed to the concerted effect of silver nanoparticles and MOF‐74(Ni) on the promotion of glucose oxidation