bluuebunny/crossref_metadata_2025_split huggingface dataset:
Template‐Assisted Synthesis of a One‐Dimensional Hierarchical Li1.2Mn0.54Ni0.13Co0.13O2 Microrod Cathode Material for Lithium‐Ion Batteries
Authors: Liu Lan , Lu Chao , Xiang Mingwu , Zhang Yun , Liu Heng , Wu Hao 
Published: November 2016

AbstractA lithium‐rich layered 1D hierarchical Li1.2Mn0.54Ni0.13Co0.13O2 microrod has been synthesized through a facile template‐assisted strategy through chemical lithiation of a rodlike MC2O4⋅2 H2O (M=Ni, Co, Mn) oxalate precursor that is obtained from a two‐step coprecipitation route without the use of any surfactants. The chemical composition, structure, and morphology of the as‐prepared lithium‐rich layered material are well characterized, and the resultant Li1.2Mn0.54Ni0.13Co0.13O2 material presents an ordered 1D microrod morphology and consists of interconnected nanosized subunits (≈200 nm) with a highly porous structure. Because of the hierarchically ordered 1D microrod structure, Li1.2Mn0.54Ni0.13Co0.13O2 as a cathode material exhibits superior reversible capacity, rate capability, and cycling performance compared with its bulk counterpart, which delivers high specific discharge capacities of 260 and 118 mA h g−1 at current rates of 0.1 and 5 C, respectively, and a high discharge capacity of 170 mA h g−1 can be also maintained even after 200 cycles at 2 C, corresponding to a capacity retention as high as 89.6 %. The remarkable electrochemical performances can be related to the unique 1D rodlike porous micro–nano hierarchical structure, which can facilitate the diffusion of Li+ ions and strengthen the structural stability of the lithium‐rich layered cathode materials.
Detection of Sodium Dehydroacetate by Tris(2,2′‐bipyridine)ruthenium(II) Electrochemiluminescence
Authors: Hui Pan , Zhang Ling , Gao Wenyue , Zuo Hongjian , Qi Liming , Kitte Shimeles Addisu , Li Yunhui , Xu Guobao 
Published: November 2016

AbstractSodium dehydroacetate, a common food additive and preservative, is investigated as a co‐reactant in efficient electrochemiluminescence reactions of [Ru(bpy)3]2+ for the first time. A linear electrochemiluminescence response is observed over the range of 0.001–1.0 mm with a detection limit of 0.27 μm sodium dehydroacetate. The proposed method has been applied to detect sodium dehydroacetate in baking bread with satisfactory recoveries.
Palladium Nanoparticle Loaded Bifunctional Silica Hybrid Material: Preparation and Applications as Catalyst in Hydrogenation Reactions
Authors: Surmiak Sabrina K. , Doerenkamp Carsten , Selter Philipp , Peterlechner Martin , Schäfer Andreas H. , Eckert Hellmut , Studer Armido 
Published: November 2016

AbstractBifunctional mesoporous silica was prepared by co‐condensation of tetraethyl orthosilicate (TEOS) with functionalized organosilanes containing azides or alkoxyamines. Orthogonal functional groups at the particles were selectively addressed in subsequent chemical modifications through “click”‐chemistry (“click to ligand” strategy) and radical nitroxide exchange. Palladation with PdCl2 delivered Pd nanoparticle‐loaded silica material bearing sulfoxides and additional aminoamides as stabilizing ligands by means of in situ reduction of the PdII‐salt. These functional particles were successfully applied to the hydrogenation of alkynes and alkenes. Aldehyde hydrodeoxygenation and benzyl ether cleavage were achieved with these hybrid catalysts under mild conditions. Particles were analyzed by IR, TEM/STEM, EDX, and solid‐state NMR spectroscopy.
Molecularly Imprinted Polymer Chemosensor for Selective Determination of an N‐Nitroso‐l‐proline Food Toxin
Authors: Lach Patrycja , Sharma Piyush Sindhu , Golebiewska Karolina , Cieplak Maciej , D'Souza Francis , Kutner Wlodzimierz 
Published: November 2016

AbstractA molecularly imprinted polymer (MIP)‐based chemosensor for the selective determination of a chosen toxin, N‐nitroso‐l‐proline (Pro‐NO), was devised and fabricated. By means of DFT, the structure of the pre‐polymerization (functional monomer)–template complex was modeled. This complex was then potentiodynamically electropolymerized in the presence of cross‐linking monomer to form a MIP–Pro‐NO thin film. Next, the Pro‐NO template was extracted from MIP–Pro‐NO with 0.1 m NaOH. Piezoelectric microgravimetry (PM) on an electrochemical quartz crystal microbalance and electrochemical (differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS)) techniques were used to transduce binding of Pro‐NO to molecular cavities of the MIP–Pro‐NO. With DPV and EIS chemosensing, the limits of detection (LODs) were about 80.9 and 36.9 nM Pro‐NO, respectively; and the selectivity coefficients for urea, glucose, creatinine, and adrenalin interferences were 6.6, 13.2, 2.1, and 2.0, respectively, with DPV as well as 2.3, 2.0, 3.3, and 2.5, respectively, with EIS. With PM under flow injection analysis conditions, the LOD was 10 μm Pro‐NO. The MIP–Pro‐NO chemosensor detectability and selectivity with respect to interferences were sufficiently high to determine Pro‐NO in protein‐providing food products.
Zeolite‐Based Organic Synthesis (ZeoBOS) of Acortatarin A: First Total Synthesis Based on Native and Metal‐Doped Zeolite‐Catalyzed Steps
Authors: Wimmer Eric , Borghèse Sophie , Blanc Aurélien , Bénéteau Valérie , Pale Patrick 
Published: November 2016

AbstractSimilarly to polymer‐supported assisted synthesis (PSAS), organic synthesis could be envisaged being performed by using zeolites, native or metal‐doped, as heterogeneous catalysts. To illustrate this unprecedented Zeolite‐Based Organic Synthesis (ZeoBOS), the total synthesis of acortatarin A was achieved through a novel strategy and using five out of eleven synthetic steps catalyzed by H‐ or metal‐doped zeolites as catalysts. Notably, the formation of an yne‐pyrrole intermediate with a copper‐doped zeolite and the spiroketalization of an alkyne diol with a silver‐doped zeolite have been developed as key steps of the synthesis.
Patients with endometrial cancer at risk for lymphatic metastasis should undergo pelvic and periaortic lymphadenectomy as part of their initial surgery
Authors: Miller David Scott 
Published: November 2016

There is no advantage to ignoring occult lymphatic metastases in endometrial cancer. There are a variety of strategies available to the surgeon to help in identifying patients at higher risk for lymphatic metastasis who are more likely to benefit from lymphadenectomy.See referenced original article and related editorial on pages 197‐9 and 263‐72.
A Sustainable Strategy for the Synthesis of Pyrochlore H4Nb2O7 Hollow Microspheres as Photocatalysts for Overall Water Splitting
Authors: Zhou Chao , Shi Run , Shang Lu , Zhao Yufei , Waterhouse Geoffrey I. N. , Wu Li‐Zhu , Tung Chen‐Ho , Zhang Tierui 
Published: November 2016

AbstractA facile and green process was developed for the synthesis of pyrochlore H4Nb2O7 hollow microspheres by using hydrothermal treatment of Sn2Nb2O7 hollow microspheres in aqueous 2 m HCl at 100–180 °C. The facile transformation of Sn2Nb2O7 into H4Nb2O7 is facilitated by the intrinsic ion‐exchange capability of Sn2Nb2O7. The resulting H4Nb2O7 hollow microspheres (diameter 1–2 μm, shell thickness 100–200 nm) displayed excellent photocatalytic performance for overall water splitting under UV irradiation, affording H2 and O2 evolution rates of 240 and 116 μmol h−1 g−1, respectively. Following decoration with 0.5 wt % Pt, the H4Nb2O7 hollow microspheres demonstrated remarkably high H2 and O2 evolution rates of 1240 and 600 μmol h−1 g−1, respectively. To our knowledge, this work is the first reported study examining the photocatalytic performance of H4Nb2O7 for water splitting. The hydrothermal synthesis method described here is also applicable to the synthesis of pyrochlore H4Ta2O7 from Sn2Ta2O7, highlighting the versatility of the approach.
Shape‐selective Valorization of Biomass‐derived Glycolaldehyde using Tin‐containing Zeolites
Authors: Tolborg Søren , Meier Sebastian , Saravanamurugan Shunmugavel , Fristrup Peter , Taarning Esben , Sádaba Irantzu 
Published: November 2016

AbstractInvited for this month′s cover is a collaboration group between Haldor Topsøe A/S and the Technical University of Denmark. The image shows the catalytic upgrading of biomass‐derived glycolaldehyde for the formation of the rare tetrose sugars by exploiting the medium‐sized pores of zeotype Sn‐MFI. The Full Paper itself is available at 10.1002/cssc.201600757.
LNA characterization methodologies
Authors: Lehmeyer Bernhard , Ivrlač Michel T. , Nossek Josef A. 
Published: November 2016

SummaryJoint characterization of low‐noise amplifiers regarding stochastic and deterministic parameters based on output power measurement for a set of known input termination impedances is considered. As an advantage of this method, both noise parameters and the input impedance can be obtained for narrow and broad band applications without special equipment. This method is mathematically developed and practically verified by simulations and measurements. With the knowledge of at least four real‐valued stochastic, and three real‐valued deterministic parameters, the amplifier is characterized, and the noise figure, gain, and input reflection can be calculated as function of the matching network.Two different ways of processing measured data will be shown.Advantages of the proposed method compared with established methods are as follows:

No special equipment (e.g., network analyzer, calibrated noise source, noise figure meter, slide screw tuner,…) is needed, just a tunable power meter with known noise bandwidth.
The four real‐valued noise parameters can be obtained with four terminating impedances only.
With three additional terminating impedances, the input impedance of the low‐noise amplifiers can be obtained.
With every additional terminating impedance, the accuracy of the measurement is improved.
Outliers are detected and eliminated.
Copyright © 2016 John Wiley & Sons, Ltd.
Low‐leakage sub‐threshold 9 T‐SRAM cell in 14‐nm FinFET technology
Authors: Zeinali Behzad , Madsen Jens Kargaard , Raghavan Praveen , Moradi Farshad 
Published: November 2016

SummaryA novel sub‐threshold 9 T Static Random Access Memory (SRAM) cell designed and simulated in 14‐nm FinFET technology is proposed in this paper. The proposed 9 T‐SRAM cell offers an improved access time in comparison to the 8 T‐SRAM cell. Furthermore, an assist circuit is proposed by which the leakage current of the proposed SRAM cell is reduced by 20% when holding ‘0’ and an equal leakage current during hold ‘1’ in comparison to the 8 T‐SRAM cell. The proposed circuit improves the access time by 40% in comparison to the 8 T‐SRAM cell without any degradation in write and read noise margins, as well. The maximum operating frequency of the proposed SRAM cell is 1.53 MHz at VDD = 270 mV. Copyright © 2016 John Wiley & Sons, Ltd.
Sometimes simpler is better: VLog, a general but easy‐to‐implement log‐like transform for cytometry
Authors: Bagwell C. Bruce , Hill Beth L. , Herbert Donald J. , Bray Chris M. , Hunsberger Benjamin C. 
Published: November 2016

AbstractThe fundamental purpose of log and log‐like transforms for cytometry is to make measured population variabilities as uniform as possible. The long‐standing success of the log transform was its ability to stabilize linearly increasing gain‐dependent uncertainties and the success of the log‐like transforms is that they extend this notion to include zero and negative measurement values. This study derives and examines a transform called VLog that stabilizes the three general sources of variability: (1) gain‐dependent variability, (2) photo‐electron counting error, and (3) signal‐independent sources of error. Somewhat surprisingly, this transform has a closed‐form solution and therefore is relatively simple to implement. By including some quantitation elements in its formulation, the shape‐dependent arguments,αandβ, usually do not require optimization for different datasets. The simplicity and generality of the transform may make it a useful tool for cytometry and possibly other technologies. © 2016 International Society for Advancement of Cytometry
Optimal load balanced clustering in homogeneous wireless sensor networks
Authors: Souissi Manel , Meddeb Aref 
Published: November 2016

SummaryBalancing the load among sensor nodes is a major challenge for the long run operation of wireless sensor networks. When a sensor node becomes overloaded, the likelihood of higher latency, energy loss, and congestion becomes high. In this paper, we propose an optimal load balanced clustering for hierarchical cluster‐based wireless sensor networks. We formulate the network design problem as mixed‐integer linear programming. Our contribution is 3‐fold: First, we propose an energy aware cluster head selection model for optimal cluster head selection. Then we propose a delay and energy‐aware routing model for optimal inter‐cluster communication. Finally, we propose an equal traffic for energy efficient clustering for optimal load balanced clustering. We consider the worst case scenario, where all nodes have the same capability and where there are no ways to use mobile sinks or add some powerful nodes as gateways. Thus, our models perform load balancing and maximize network lifetime with no need for special node capabilities such as mobility or heterogeneity or pre‐deployment, which would greatly simplify the problem. We show that the proposed models not only increase network lifetime but also minimize latency between sensor nodes. Numerical results show that energy consumption can be effectively balanced among sensor nodes, and stability period can be greatly extended using our models.
Intensified plant N and C pool with more available nitrogen under experimental warming in an alpine meadow ecosystem
Authors: Peng Fei , Xue Xian , You Quangang , Xu Manhou , Chen Xiang , Guo Jian , Wang Tao 
Published: November 2016

AbstractNitrogen (N) availability is projected to increase in a warming climate. But whether the more available N is immobilized by microbes (thus stimulates soil carbon (C) decomposition), or is absorbed by plants (thus intensifies C uptake) remains unknown in the alpine meadow ecosystem. Infrared heaters were used to simulate climate warming with a paired experimental design. Soil ammonification, nitrification, and net mineralization were obtained by in situ incubation in a permafrost region of the Qinghai‐Tibet Plateau (QTP). Available N significantly increased due to the stimulation of net nitrification and mineralization in 0–30 cm soil layer. Microbes immobilized N in the end of growing season in both warming and control plots. The magnitude of immobilized N was lower in the warming plots. The root N concentration significantly reduced, but root N pool intensified due to the significant increase in root biomass in the warming treatment. Our results suggest that a warming‐induced increase in biomass is the major N sink and will continue to stimulate plant growth until plant N saturation, which could sustain the positive warming effect on ecosystem productivity.
The impacts of a changing climate on catchment water balance and forest management
Authors: Schüler Gebhard , Schobel Steffen , Wilkinson Kristina , Schultze Bernd , Karl Sabine , Scherzer Jörg 
Published: November 2016

AbstractClimate change has serious impacts on forest services with regard to the spatial and temporal distribution of water within catchments. Hence, combined forest and catchment management in a changing climate is a crucial concern for people and society. To assess hydrological processes and water resources in two forested headwater catchments in south‐west Germany the physical based hydrological model ArcAPEX was calibrated to investigate climate change scenarios for the near (2021–2050) and far (2071–2100) future. Even though the trend in temperature is positive in most regional climate change scenarios for south‐west Germany, the precipitation trend is quite ambiguous. Different precipitation scenarios give access to the possible bandwidth between water stress and flood generation. Our results can be used to describe water resources and discharge characteristics under conditions of different land use change scenarios.Management option for a sustainable forestry and flood mitigation will be to “spread the risk” by creating forests with a high biodiversity and a prioritization of forest services and functions. The principle is to find “no‐regret” decisions. In this sense, final decisions should not be taken too early, and several options should be kept open, such as dealing with increasingly frequent droughts on one hand and increased runoff generation on the other hand. Thus, it should remain possible for forest and catchment management authorities to react to possible developments in an uncertain future.
From cryptic herbivore to predator: stable isotopes reveal consistent variability in trophic levels in an ant population
Authors: Roeder Karl A. , Kaspari Michael 
Published: November 2016

AbstractPopulations may collectively exhibit a broad diet because individuals have large diet breadths and/or because subpopulations of specialists co‐occur. In social insect populations, the diet of the genetic individual, the colony, may similarly arise because workers are diet generalists or castes of specialists. We used elemental and isotopic methods to explore how the invasive red imported fire ant, Solenopsis invicta, achieves its status as a trophic generalist. In one 0.5‐ha old field, 31 S. invicta colonies ranged from 1°‐consumer to 2°‐predator (δ15N's 0.35–7.38‰), a range comparable to that shown in sampled ant communities. Moreover, a colony's trophic rank was stable despite δ15N fluctuating 2.98‰ over the year. Colonies that fed at higher trophic levels were not larger, but consumed more C3‐based resources. Individual worker mass, however, did increase with δ15N (r2 = 0.29, P < 0.001). The ninefold variation in worker mass within a colony generated trophic variance approximately 15% of the population of colonies. Combined, we show how intraspecific trait variation contributes to the trophic breadth of S. invicta, and suggest mechanisms that further explain how their trophic signature varies across space, but remains stable over time.
Plateau reduction by drainage divide migration in the Eastern Cordillera of Colombia defined by morphometry and 10Be terrestrial cosmogenic nuclides
Authors: Struth Lucía , Teixell Antonio , Owen Lewis A. , Babault Julien 
Published: November 2016

AbstractCatchment‐wide erosion rates were defined using 10Be terrestrial cosmogenic nuclides for the Eastern Cordillera of the Colombian Andes to help determine the nature of drainage development and landscape evolution. The Eastern Cordillera, characterized by a smooth axial plateau bordered by steep flanks, has a mean erosion rate of 11 ± 1 mm/ka across the plateau and 70 ± 10 mm/ka on its flanks, with local high rates >400 mm/ka. The erosional contrast between the plateau and its flanks was produced by the increase in the orogen regional slope, derived from the progressive shortening and thickening of the Eastern Cordillera. The erosion rates together with digital topographic analysis show that the drainage network is dynamic and confirms the view that drainage divides in the Eastern Cordillera are migrating towards the interior of the mountain belt resulting in progressive drainage reorganization from longitudinal to transverse‐dominated rivers and areal reduction of the Sabana de Bogotá plateau. Copyright © 2016 John Wiley & Sons, Ltd.
Infiltration of fine sediment into a coarse mobile bed: a phenomenological study
Authors: Dudill Ashley , Frey Philippe , Church Michael 
Published: November 2016

AbstractExperiments were undertaken to study the nature of granular interaction in running water by examining the influence of fine grain inputs to a coarser sediment bed with a mobile surface. Video recordings of grain sorting by both kinetic sieving and spontaneous percolation are used to diagnose the critical processes controlling the overall bed response. Kinetic sieving takes place in the mobile bed surface, with the finer sediment moving to the bottom of the bedload transport layer at the interface with the underlying quasi‐static coarse bed. We show that the behavior at this interface dictates how a channel responds to a fine sediment input. If, by spontaneous percolation, the fine sediment is able to infiltrate into the underlying quasi‐static bed, the total transport increases and the channel degrades. However, if the fine sediment input rate exceeds the transport capacity or is geometrically unable to infiltrate into the underlying bed, it forms a quasi‐static layer underneath the transport layer that inhibits entrainment from the underlying bed, resulting in aggradation and an increase in bed slope. Copyright © 2016 John Wiley & Sons, Ltd.
Prospects for crowdsourced information on the geomorphic ‘engineering’ by the invasive Coypu (Myocastor coypus)
Authors: Sofia Giulia , Masin Roberta , Tarolli Paolo 
Published: November 2016

AbstractAmong the most invasive species, the Coypu (Myocastor coypus) best exemplifies the widespread effect of alien species on ecosystems. Among the impacts, the induced erosion in riverbanks has an increasing economic and social importance. Despite its significance, this type of erosion is rarely quantified, and the available information is limited to local knowledge, grey literature, and maintenance reports. This research shows the potential of freely and instantly available Structure‐from‐Motion (SfM) photogrammetry to obtain crowdsourced information based on smartphone images. The results highlight how it is possible to provide a rough estimate of the damages with relatively low or null cost of application, and limited expert knowledge and expenditure of time, depending on the scale of analysis. The proposed technique provides a fresh approach to a known long‐standing issue, offering a new source of information for farmers, researchers, wildlife managers, as well as for land managers and planners. The potential applications of such a technique and its unprecedented ease of use and very low cost offer effective tools for management plans and scientific research, providing a basis to relate eroded volumes to the functioning of the drainage system and the connected agroecosystem. The method would also enable the opportunity of participatory and opportunistic crowdsourced sensing. Further scientific research on the crowd‐based data on erosion should encourage standardisation of data gathering and accessibility, together with a public involvement in information exchange, to generate a better understanding and awareness of erosion problems also for other fields of research. Copyright © 2016 John Wiley & Sons, Ltd.