bluuebunny/crossref_metadata_2025_split huggingface dataset:
An approach to the phytochemical profiling of rocket [Eruca sativa (Mill.) Thell]
Authors: Villatoro‐Pulido Myriam , Priego‐Capote Feliciano , Álvarez‐Sánchez Beatriz , Saha Shikha , Philo Mark , Obregón‐Cano Sara , De Haro‐Bailón Antonio , Font Rafael , Del Río‐Celestino Mercedes 
Published: June 2013

AbstractBACKGROUNDEruca sativa (rocket) contains a wide range of compounds with nutraceutical and organoleptical properties. This research aimed to characterise the nutraceutical interest of four rocket accessions by analysis of glucosinolates, isothiocyanates, phenolics, carotenoids and carbohydrates. Different methods based on chromatographic separation with ultraviolet absorbance or mass spectrometry detection were used.RESULTSThe total content of glucosinolates ranged from 14.02 to 28.24 µmol g−1 of dry weight. Glucoraphanin represented up to 52% of the total glucosinolates in leaves of one accession. Accessions showed differences in the hydrolysis of glucoraphanin to the isothiocyanate sulforaphane. No correlation between these compounds was observed, which insisted differences in the myrosinase activity within accessions. Rocket leaves had variable phenolic profiles represented by quercetin‐3‐glucoside, rutin, myricetin, quercetin and ferulic and p‐coumaric acids. A high variability was observed for the total carotenoids ranged from 16.2 to 275 µg g−1 with lutein as the main carotenoid. Glucose was the predominant sugar, representing >70% of the total soluble carbohydrates.CONCLUSIONSSome accessions could be candidates for future breeding programmes because of their pattern of beneficial compounds for human health. However, further research is essential to evaluate the biological activity of these accessions before designing functional food. © 2013 Society of Chemical Industry
Prosper‐Haniel and Auguste‐Victoria collieries: Three bunkers at a single stroke
Authors: Reese Reiner , Krawiec Witold , Spekowius Reiner 
Published: June 2013

AbstractThe 'three‐bunker project' described in this paper comprised the excavation and fitting‐out of three gravity‐fed coal bunkers at Prosper‐Haniel and Auguste‐Victoria collieries. The three installations were to be constructed one immediately after the other in order to save time and money. One major advantage of this approach was that the engineering could be carried out as part of a concentrated effort. The engineering services undertaken at one project site could then be adopted – either completely or with some slight modification – at the next bunker.Another huge benefit was in the provision of logistics: after working on one bunker the mechanised equipment could immediately be deployed to the next site.RAG Deutsche Steinkohle AG (now RAG Aktiengesellschaft) put the three‐bunker project out to tender in the summer of 2009 (see Table 1). The mining division of Thyssen Schachtbau GmbH (TS) submitted a bid for the contract and was given the go‐ahead in the winter of 2009/2010. The projects were to be completed between late 2009 and the end of 2012.
Plough longwall operations under challenging geological conditions
Authors: Voss Heinz‐Werner , Witthaus Holger , Junker Martin 
Published: June 2013

AbstractIn German coal mining, comprehensive experience is available in the grading of geological faults. The available experience has produced a level of expertise which enables the maintenance of high production figures even under difficult conditions. This is demonstrated by the many successful projects of RAG. The paper describes in the following several successful case examples and illustrates that the collected know‐how can be used globally, even for future challenges, by German RAG Mining Solutions GmbH to successfully operate modern high‐performance plough companies under difficult conditions.
Stowing on longwall faces on the basis of experience acquired in the German coal mining industry
Authors: Witthaus Holger , Gutberlet Karsten , Junker Martin 
Published: June 2013

AbstractIntroduction of stowing in the German coal mining industry has a long tradition. Pneumatic stowing applications are known from the literature since at least 1924 and it is highly probable that simple stowing had been practised far earlier. Highly specific regulations apply to different deposits and extraction methods on the basis of vast experience in the international mining industry and the corresponding boundary conditions. The following contribution will concentrate solely on what advantage is achieved for longwall working in coal and will not cover other extraction methods and deposit prerequisites. The contribution initially describes the aims of introduction of stowing starting from the situation of longwall working with self‐stowing, so‐called caving, and its basic technical and economic features. Tested methods in the German coal mining industry are then described and the experience summarised. The methods, their mechanical effect and the planning possibilities are taken into account and the cost‐effectiveness of previous applications summarised. It is clear that because of the special conditions in the German coal mining industry the use of stowing technology has no longer come into consideration since the mid‐1990s, for technical, infrastructural and in particular, economic reasons. However, the conclusion cannot be applied to international mining and other deposit conditions. For this reason the contribution concludes with consideration of the potential for further optimisation of future applications – as currently being introduced at the highest technical level in China – with the developments in the German coal mining industry.
Delimitation of the use of ploughs and cutter drums in medium to small seam thicknesses with the aid of face simulations
Authors: Plum Dietmar , Kapelczak Lorenz , Hirsch Knut Ansgar 
Published: June 2013

AbstractThe article “Software development as the driving force for automation in the raw materials and mining sector” deals with the basic development of technical engineering software in the raw materials and mining sector at the DMT company. Longwall mining simulation has been created as a special field in the DMT software. This software is designed for calculation and optimisation of different face extraction technologies.Current studies predict a sharply increasing global demand for energy in future years. The highest demand for raw materials for energy generation is forecast in particular for future markets such as China, India and Russia.Despite the worldwide efforts to observe climate aims coal as a conventional energy raw material will continue to play a major role. Consequently there is already evidence of an intensified trend towards development of new coal deposits. If can be stated that there is a big future in deep mines and the seams with medium and small thicknesses will attract increasing attention.DMT has based its portfolio on these developments and offers complete planning for the working of coal deposits in deep mines. This planning starts with the modelling of the underground deposit on the basis of core samples and drilling planning data from exploratory drilling and seismic surveys. The specific geological properties of the actual deposit can be seen with the aid of these deposit models (Fig. 1).
Operating experience with high‐tempered steel roadway supports at West colliery
Authors: Stenmans Karl‐Heinz , Hellwig Rainer 
Published: June 2013

AbstractWest colliery has seen a continuous increase in working depths over the last ten years. With ever deeper mine workings and the accompanying rise in rock pressure levels, combined with the higher excavation ratio, strata control measures at the coal face and in the underground roadways have now assumed critical importance. Sophisticated support profiles have been used in combination with innovative rockbolting technology in order to ensure that performance levels are maintained.These geomechanical stresses are expected to be particularly pronounced in working district 1 WN in Girondelle seam number 5 at West colliery. Extraction panels 630 and 632 in district 1 WN are at a depth of about 1, 300 m and both panels, which are being worked simultaneously, are separated by a 220 m‐wide pillar. The gate roads in this district therefore provide the ideal proving ground for specially heat‐treated roadway supports.
Effectiveness–equity models for facility location problems on tree networks
Authors: Lejeune Miguel A. , Prasad Srinivas Y. 
Published: June 2013

AbstractWe propose models to investigate effectiveness–equity tradeoffs in tree network facility location problems. We use the commonly used median objective as a measure of effectiveness, and the Gini index as a measure of (in)equity, and formulate bicriteria problems involving these objectives. We develop procedures to identify an efficient set of solutions to these problems, analyze the complexity of the proposed procedures, and finally illustrate the procedures with an example.Copyright © 2012 Wiley Periodicals, Inc. NETWORKS, Vol. 62(4), 243–254 2013
Disruption of Phthorimaea operculella (Lepidoptera: Gelechiidae) oviposition by the application of host plant volatiles
Authors: Anfora Gianfranco , Vitagliano Silvia , Larsson Mattias C , Witzgall Peter , Tasin Marco , Germinara Giacinto S , De Cristofaro Antonio 
Published: June 2013

AbstractBACKGROUNDPhthorimaea operculella is a key pest of potato. The authors characterised the P. operculella olfactory system, selected the most bioactive host plant volatiles and evaluated their potential application in pest management. The electrophysiological responses of olfactory receptor neurons (ORNs) housed in long sensilla trichodea of P. operculella to plant volatiles and the two main sex pheromone components were evaluated by the single‐cell recording (SCR) technique. The four most SCR‐active volatiles were tested in a laboratory oviposition bioassay and under storage warehouse conditions.RESULTSThe sensitivity of sensilla trichodea to short‐chained aldehydes and alcohols and the existence of ORNs tuned to pheromones in females were characterised. Male recordings revealed at least two types of ORN, each of which typically responded to one of the two pheromone components. Hexanal, octanal, nonanal and 1‐octen‐3‐ol significantly disrupted the egg‐laying behaviour in a dose‐dependent manner. Octanal reduced the P. operculella infestation rate when used under storage conditions.CONCLUSIONSThis work provides new information on the perception of plant volatiles and sex pheromones by P. operculella. Laboratory and warehouse experiments show that the use of hexanal, octanal, nonanal and 1‐octen‐3‐ol as host recognition disruptants and/or oviposition deterrents for P. operculella control appears to be a promising strategy. © 2013 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
STREAM RESTORATION AND CRIBWALL PERFORMANCE: A CASE STUDY OF CRIBWALL MONITORING IN SOUTHERN ONTARIO
Authors: Krymer V. , Robert A. 
Published: June 2013

ABSTRACTStream restoration focusing on adaptable natural and inert material use has been implemented through soil bioengineering designs aimed at the stabilization of urbanized streams. Within each design application materials such as large wood, sediment fill and vegetation must be suited to diverse settings. This paper discusses the application of cribwalls as soil bioengineering designs found in two Southern Ontario watersheds and the criteria that influence their performance. Field measurements of cribwall cuttings, sediment sampling, erosion pin monitoring, and computer‐generated stream power analysis are used to compare design performance at several sites. It is determined that the technical specifications of the design and site characteristics such as stream power distribution, sediment, and channel planform are equally involved in long‐term streambank stability. The results indicate that cribwalls with dense cutting growth perform well on streambanks that offer a greater amount of soil cohesion, nutrients, and infiltration in the mid and upper sections of the bank. In streams with moderate channel slopes and stream power distribution that is above the watershed mean, streams with well‐developed floodplains, sinuous channel planforms, and low bank height ratios perform better than those that are confined, straightened, and have greater bank height ratios. Throughout the comparison of several cribwall sites, the implication of this work is to demonstrate how to assess the fitness of similar soil bioengineering designs for application to diverse stream settings and to further validate their significance in stream restoration as designs that are multifunctional. Copyright © 2013 John Wiley & Sons, Ltd.
Survey on network‐based botnet detection methods
Authors: García Sebastián , Zunino Alejandro , Campo Marcelo 
Published: June 2013

ABSTRACTBotnets are an important security problem on the Internet. They continuously evolve their structure, protocols and attacks. This survey analyzes and compares the most important efforts carried out in a network‐based detection area. It accomplishes four tasks: first, the comparison of previous surveys and the proposal of four new dimensions to analyze their classification schemes; second, a new classification and comparison of network‐based botnet detection proposals, which includes the definition of 20 desired properties of every botnet detection paper; third, an extensive comparison between the most representative detection proposals; and fourth, the description of the most important problems and highlights in the area. We conclude that the area has achieved great advances so far, but there are still many open problems. Copyright © 2013 John Wiley & Sons, Ltd.
Role‐based and time‐bound access and management of EHR data
Authors: Zhang Rui , Liu Ling , Xue Rui 
Published: June 2013

ABSTRACTSecurity and privacy are widely recognized as important requirements for access and management of electronic health record (EHR) data. In this paper, we argue that EHR data need to be managed with customizable access control in both spatial and temporal dimensions. We present a role‐based and time‐bound access control (RBTBAC) model that provides more flexibility in both roles (spatial capability) and time (temporal capability) dimensions to control the access of sensitive data. Through algorithmic combination of role‐based access control and time‐bound key management, our RBTBAC model has two salient features. First, we have developed a privacy‐aware and dynamic key structure for role‐based privacy aware access and management of EHR data, focusing on the consistency of access authorization (including data and time interval) with the activated role of user. In addition to role‐based access, a path‐invisible EHR structure is built for preserving privacy of patients. Second, we have employed a time tree method for generating time granule values, offering fine granularity of time‐bound access authorization and control. Our initial experimental results show that tree‐like time structure can improve the performance of the key management scheme significantly, and RBTBAC model is more suitable than existing solutions for EHR data management because it offers high‐efficiency and better security and privacy. Copyright © 2013 John Wiley & Sons, Ltd.
Optically Induced Cell Fusion Using Bispecific Nanoparticles
Authors: Yeheskely‐Hayon Daniella , Minai Limor , Golan Lior , Dann Eldad J. , Yelin Dvir 
Published: June 2013

AbstractRedirecting the immune system to eliminate tumor cells is a promising alternative to traditional cancer therapies, most often requiring direct interaction between an immune system effector cell and its target. Herein, a novel approach for selective attachment of malignant cells to antigen‐presenting cells by using bispecific nanoparticles is presented. The engaged cell pairs are then irradiated by a sequence of resonant femtosecond pulses, which results in widespread cell fusion and the consequent formation of hybrid cells. The dual role of gold nanoparticles as conjugating agents and fusion promoters offers a simple yet effective means for specific fusion between different cells. This technology could be useful for a variety of in vitro and in vivo applications that call for selective fusion between cells within a large heterogenic cell population.
Effect of increased wind penetration on system prices in Korea's electricity markets
Authors: Shcherbakova Anastasia , Kleit Andrew , Blumsack Seth , Cho Joohyun , Lee Woonam 
Published: June 2013

ABSTRACTIn this paper, we examine the effect of increased wind penetration on system marginal prices (SMPs) in South Korea's electricity market. Korea's renewable portfolio standard (RPS) went into effect in 2012, with a goal of increasing the share of renewable generation to 10% of the total load by 2022. We examine the output of wind installations across the Korean peninsula and simulate an increase in wind penetration consistent with Korea's RPS targets. Under a variety of assumptions on demand elasticity, we find that higher shares of wind generation in total supply reduce both the average SMP and its variation. In particular, we find that wind energy output on the Korean peninsula is more correlated with peak electricity demand than has been reported for other regions. The per‐unit value of wind energy to owners of wind assets is thus higher for South Korea than would be the case for European or North American locations with a similar mix of fuels other than wind. Copyright © 2013 John Wiley & Sons, Ltd.
Willingness to pay and benefit–cost analysis of modern contraceptives in Nigeria
Authors: Onwujekwe Obinna , Ogbonna Chinwe , Ibe Ogochukwu , Uzochukwu Benjamin 
Published: June 2013

AbstractObjectiveTo determine the willingness to pay (WTP) and the benefit–cost of modern contraceptives delivered through the public sector in Nigeria.MethodsData were collected from 4517 randomly selected households. The WTP for the 6 major contraceptive methods available in the public sector was elicited. Logistic regression was used to determine whether the decision to state a positive WTP amount was valid; Tobit regression was used to test the validity of the elicited WTP amounts. For each contraceptive, 3 BCR values were computed, based on the official unit price, the unit cost per couple‐year of protection (CYP), and the average actual expenditure for contraceptives in the month preceding the interview.ResultsThe mean WTP for the different contraceptives varied by socioeconomic status and geographic (urban versus rural) location (P< 0.01). The BCR analysis showed that the benefits of providing contraceptives through the public sector far outweighed the costs, except for female condoms, where the CYP‐based BCR was 0.9.ConclusionThe benefits of providing contraceptives outweigh the costs, making public sector investment worthwhile. The median WTP amounts, which reflect the ideal upper thresholds for pricing, indicate that cost recovery is feasible for all contraceptives.
A multi‐country study of the “intrapartum stillbirth and early neonatal death indicator” in hospitals in low‐resource settings
Authors: Goldenberg Robert L. , McClure Elizabeth M. , Kodkany Bhala , Wembodinga Gilbert , Pasha Omrana , Esamai Fabian , Tshefu Antoinette , Patel Archana , Mabaye Hillary , Goudar Shivaparasad , Saleem Sarah , Waikar Manjushri , Langer Ana , Bose Carl L. , Rubens Craig E. , Wright Linda L. , Moore Janet , Blanc Ann 
Published: June 2013

AbstractObjectiveTo determine the feasibility of introducing a simple indicator of quality of obstetric and neonatal care and to determine the proportion of potentially avoidable perinatal deaths in hospitals in low‐income countries.MethodsBetween September 1, 2011, and February 29, 2012, data were collected from consecutive women who were admitted to the labor ward of 1 of 6 hospitals in 4 low‐income countries. Fetal heart tones on admission were monitored, and demographic and birth data were recorded.ResultsData were obtained for 3555 women and 3593 neonates (including twins). The doptone was used on 97% of women admitted. The overall perinatal mortality rate was 34 deaths per 1000 deliveries. Of the perinatal deaths, 40%–45% occurred in the hospital and were potentially preventable by better hospital care.ConclusionThe results demonstrated that it is possible to accurately determine fetal viability on admission via a doptone. Implementation of doptone use, coupled with a concise data record, might form the basis of a low‐cost and sustainable program to monitor and evaluate efforts to improve quality of care and ultimately might help to reduce the in‐hospital component of perinatal mortality in low‐income countries.
Response variability to glucose facilitation of cognitive enhancement
Authors: Owen Lauren , Scholey Andrew , Finnegan Yvonne , Sünram-Lea Sandra I. 
Published: June 2013

Glucose facilitation of cognitive function has been widely reported in previous studies (including our own). However, several studies have also failed to detect glucose facilitation. There is sparsity of research examining the factors that modify the effect of glucose on cognition. The aims of the present study were to (1) demonstrate the previously observed enhancement of cognition through glucose administration and (2) investigate some of the factors that may exert moderating roles on the behavioural response to glucose, including glucose regulation, body composition (BC) and hypothalamic–pituitary–adrenal axis response. A total of twenty-four participants took part in a double-blind, placebo-controlled, randomised, repeated-measures study, which examined the effect of 25 and 60 g glucose compared with placebo on cognitive function. At 1 week before the study commencement, all participants underwent an oral glucose tolerance test. Glucose facilitated performance on tasks of numeric and spatial working memory, verbal declarative memory and speed of recognition. Moderating variables were examined using several indices of glucoregulation and BC. Poorer glucoregulation predicted improved immediate word recall accuracy following the administration of 25 g glucose compared with placebo. Those with better glucoregulation showed performance decrements on word recall accuracy following the administration of 25 g glucose compared with placebo. These findings are in line with accumulating evidence that glucose load may preferentially enhance cognition in those with poorer glucoregulation. Furthermore, the finding that individuals with better glucoregulation may suffer impaired performance following a glucose load is novel and requires further substantiation.