bluuebunny/crossref_metadata_2025_split huggingface dataset:
A university library’s use of social media during a time of crisis
Authors: Chizwina Sabelo , Rabatseta Benford , Bangani Siviwe , Moyo Mathew 
Published: October 2017

Purpose
The purpose of this paper is to highlight how North Western University (NWU) Library used Facebook and Twitter to inform, educate and communicate with library users during the students’ protests #FeesMustFall Campaign.

Design/methodology/approach
This paper follows a case study approach to examine how Facebook and Twitter were used to inform, educate and communicate with library users during the #FeesMustFall Campaign. Data was obtained from the NWU Library’s Facebook Insights, the Facebook page itself and Twitter account, after which content was analysed.

Findings
The paper provides insights that the teaching and learning (educational) aspect still lags behind on social media usage in libraries. Given the period in question, the expectation would have been a higher percentage of posts that could be categorized as educational.

Research limitations/implications
The study is confined to one campus library of the NWU Libraries and the results cannot be generalised to the NWU.

Practical implications
Social media use policies should be developed and awareness created on their availability and meaning/implications to users.

Originality/value
This paper fulfils an identified need to study how social media can be used by academic libraries. The literature currently focuses on how Twitter has been used in library campaigns. This paper shows how Facebook can be used in a university setting during crises time.
Epac‐induced ryanodine receptor type 2 activation inhibits sodium currents in atrial and ventricular murine cardiomyocytes
Authors: Valli Haseeb , Ahmad Shiraz , Sriharan Sujan , Dean Lydia D , Grace Andrew A , Jeevaratnam Kamalan , Matthews Hugh R , Huang Christopher L‐H 
Published: October 2017

SummaryAcute RyR2 activation by exchange protein directly activated by cAMP (Epac) reversibly perturbs myocyte Ca2+ homeostasis, slows myocardial action potential conduction, and exerts pro‐arrhythmic effects. Loose patch‐clamp studies, preserving in vivo extracellular and intracellular conditions, investigated Na+ current in intact cardiomyocytes in murine atrial and ventricular preparations following Epac activation. Depolarising steps to varying test voltages activated typical voltage‐dependent Na+ currents. Plots of peak current against depolarisation from resting potential gave pretreatment maximum atrial and ventricular currents of −20.23 ± 1.48 (17) and −29.8 ± 2.4 (10) pA/μm2 (mean ± SEM [n]). Challenge by 8‐CPT (1 μmol/L) reduced these currents to −11.21 ± 0.91 (12) (P < .004) and −19.3 ± 1.6 (11) pA/μm2 (P < .04) respectively. Currents following further addition of the RyR2 inhibitor dantrolene (10 μmol/L) (−19.91 ± 2.84 (13) and −26.6 ± 1.7 (17)), and dantrolene whether alone (−19.53 ± 1.97 (8) and −27.6 ± 1.9 (14)) or combined with 8‐CPT (−19.93 ± 2.59 (12) and −29.9 ± 2.5(11)), were indistinguishable from pretreatment values (all P >> .05). Assessment of the inactivation that followed by applying subsequent steps to a fixed voltage 100 mV positive to resting potential gave concordant results. Half‐maximal inactivation voltages and steepness factors, and time constants for Na+ current recovery from inactivation in double‐pulse experiments, were similar through all the pharmacological conditions. Intracellular sharp microelectrode membrane potential recordings in intact Langendorff‐perfused preparations demonstrated concordant variations in maximum rates of atrial and ventricular action potential upstroke, (dV/dt)max. We thus demonstrate an acute, reversible, Na+ channel inhibition offering a possible mechanism for previously reported pro‐arrhythmic slowing of AP propagation following modifications of Ca2+ homeostasis, complementing earlier findings from chronic alterations in Ca2+ homeostasis in genetically‐modified RyR2‐P2328S hearts.
Disentangling causation: complex roles of coral‐associated microorganisms in disease
Authors: Mera Hanaka , Bourne David G. 
Published: October 2017

SummaryRapidly changing climate regimes combined with other anthropogenic pressures are implicated in increased disease epizootics among reef building corals, resulting in changing habitat structure. These accumulated stressors directly contribute to disease outbreaks by compromising the coral host immune system, modulating virulence of microbial pathogens and/or disrupting the balance within the microbiome of the holobiont. Disentangling coral disease causation has been challenging, and while progress has been made for certain diseases in terms of the roles the associated microorganisms play, it is evident that like in other marine or terrestrial systems, compromised host health cannot always be attributed to a single causative agent. Here, we summarize the current state in knowledge of microbial induced coral diseases, and discuss challenges and strategies to further disentangle disease causation. With the major environmental pressures coral reefs face over the next century, understanding interactions between host, environmental and microbial causative agent(s) that lead to disease, is still a priority to enable development of effective strategies for building resilience into coral populations.
On the Value of Environmental Certification in the Commercial Real Estate Market
Authors: Holtermans Rogier , Kok Nils 
Published: October 2017

AbstractA significant part of the global carbon externality stems from the real estate sector. Environmental certification is often hailed as an effective means to resolve the information asymmetry that may prevent markets from effectively pricing the energy performance of buildings. This study analyzes the adoption and financial outcomes of environmentally certified commercial real estate over time. We document that nearly 40% of space in the 30 largest U.S. commercial real estate markets holds some kind of environmental certification in 2014, as compared to less than 5% in 2005. Tracking the rental growth of 26,212 office buildings, we measure the performance of environmentally certified real estate over time. We document that certified office buildings, on average, have slightly higher rental, occupancy and pricing levels, but do not outperform non‐certified buildings in rental growth over the 2004–2013 period. Further performance attribution analysis indicates that local climate conditions, local energy prices and the extent of certification lead to significant heterogeneity in market pricing. On aggregate, these findings provide some evidence on the efficiency of the market in the adoption and capitalization of environmental characteristics in the commercial real estate market.
Monitoring of brown stink bug (Hemiptera: Pentatomidae) population dynamics in corn to predict its abundance using weather data
Authors: Ni Xinzhi , Cottrell Ted E. , Buntin G. David , Li Xianchun , Wang Wei , Zhuang Hong 
Published: October 2017

AbstractThe brown stink bug (BSB), Euschistus servus (Say) (Hemiptera: Pentatomidae), is a serious economic pest of corn production in the southeastern United States. The BSB population dynamics was monitored for 17 weeks from tasseling to preharvest of corn plants (i.e., late May to mid‐September) using pheromone traps in three corn fields from 2005 to 2009. The trap data showed two peaks in early June and mid‐August, respectively. The relationship between trap catch and pregrowing season weather data was examined using correlation and stepwise multiple factor regression analyses. Weather indices used for the analyses were accumulated growing degree day (AGDD), number of days with minimum temperature below 0 °C (Subz), accumulated daily maximum (AMaxT) and minimum temperatures (AMinT) and rainfall (ARain). The weather indices were calculated with lower (10 °C) and upper (35 °C) as biological thresholds. The parameters used in regression analysis were seasonal abundance (or overall mean of BSB adult catch) (BSBm), number of BSB adults caught at a peak (PeakBSB), and peak week (Peakwk). The BSBm was negatively related to high temperature (AmaxT or AGDD) consistently, whereas 1stPeakBSB was positively correlated to both ARain and Subz, irrespective of weather data durations (the first 4, 4.5, and 5 months). In contrast, the 7‐month weather data (AGDD7) were negatively correlated to the BSBm only, but not correlated to the second PeakBSB. The 5‐year monitoring study demonstrated that weather data can be used to predict the BSB abundance at its first peak in tasseling corn fields in the southeastern U.S. states.
The parasporal crystals of Bacillus pumilus strain 15.1: a potential virulence factor?
Authors: Garcia‐Ramon Diana C. , Berry Colin , Tse Carmen , Fernández‐Fernández Alberto , Osuna Antonio , Vílchez Susana 
Published: October 2017

SummaryBacillus pumilus strain 15.1 was previously found to cause larval mortality in the Med‐fly Ceratitis capitata and was shown to produce crystals in association with the spore. As parasporal crystals are well‐known as invertebrate‐active toxins in entomopathogenic bacteria such as Bacillus thuringiensis (Cry and Cyt toxins) and Lysinibacillus sphaericus (Bin and Cry toxins), the B. pumilus crystals were characterized. The crystals were composed of a 45 kDa protein that was identified as an oxalate decarboxylase by peptide mass fingerprinting, N‐terminal sequencing and by comparison with the genome sequence of strain 15.1. Synthesis of crystals by a plasmid‐cured derivative of strain 15.1 (produced using a novel curing strategy), demonstrated that the oxalate decarboxylase was encoded chromosomally. Crystals spontaneously solubilized when kept at low temperatures, and the protein produced was resistant to trypsin treatment. The insoluble crystals produced by B. pumilus 15.1 did not show significant toxicity when bioassayed against C. capitata larvae, but once the OxdD protein was solubilized, an increase of toxicity was observed. We also demonstrate that the OxdD present in the crystals has oxalate decarboxylate activity as the formation of formate was detected, which suggests a possible mechanism for B. pumilus 15.1 activity. To our knowledge, the characterization of the B. pumilus crystals as oxalate decarboxylase is the first report of the natural production of parasporal inclusions of an enzyme.
Expression of fluorescent proteins in Lactobacillus rhamnosus to study host–microbe and microbe–microbe interactions
Authors: Spacova Irina , Lievens Elke , Verhoeven Tine , Steenackers Hans , Vanderleyden Jos , Lebeer Sarah , Petrova Mariya I. 
Published: October 2017

SummaryProbiotic Lactobacillus strains are widely used to benefit human and animal health, although the exact mechanisms behind their interactions with the host and the microbiota are largely unknown. Fluorescent tagging of live probiotic cells is an important tool to unravel their modes of action. In this study, the implementation of different heterologously expressed fluorescent proteins for the labelling of the model probiotic strains Lactobacillus rhamnosusGG (gastrointestinal) and Lactobacillus rhamnosusGR‐1 (vaginal) was explored. Heterologous expression of mTagBFP2 and mCherry resulted in long‐lasting fluorescence of L. rhamnosusGG and GR‐1 cells, using the nisin‐controlled expression (NICE) system. These novel fluorescent strains were then used to study in vitro aspects of their microbe–microbe and microbe–host interactions. Lactobacillus rhamnosusGG and L. rhamnosusGR‐1 expressing mTagBFP2 and mCherry could be visualized in mixed‐species biofilms, where they inhibited biofilm formation by Salmonella Typhimurium–gfpmut3 expressing the green fluorescent protein. Likewise, fluorescent L. rhamnosusGG and L. rhamnosusGR‐1 were implemented for the visualization of their adhesion patterns to intestinal epithelial cell cultures. The fluorescent L. rhamnosus strains developed in this study can therefore serve as novel tools for the study of probiotic interactions with their environment.
From Cancun to Paris: An Era of Policy Making on Climate Change and Migration
Authors: Nash Sarah L. 
Published: October 2017

AbstractPolicy making on climate change and migration has become a routine agenda point of global climate change politics. In particular, the period between the Cancun climate negotiations of the United Nations Framework Convention on Climate Change (UNFCCC) in 2010 and the Paris negotiations in 2015 was very important for the emergence of the nexus of climate change and migration as a policy priority. This article conducts a genealogy of policy making on climate change and migration and finds that the period between Cancun and Paris constitutes a distinct era of policy making. This analysis is structured around four areas where shifts have taken place that contribute to delineating this era from others, either through shifts in relation to the eras preceding or succeeding it, or in terms of substantial shifts and dislocations that have taken place during this era. These areas are: (1) the institutional settings for policy making; (2) the actors involved in policy making; (3) the language employed; (4) the mobilisation of knowledge. This analysis is an important undertaking for denaturalising policy making on climate change and migration and promoting understandings of it as contingent, as well as historically, socially, politically, and institutionally situated.
Alien and native plant seed dispersal by vehicles
Authors: Khan I. , Navie S. , George D. , O'Donnell C. , Adkins S. W. 
Published: October 2017

AbstractVehicles play a significant role in spreading plants, both in terms of quantity and quality (species). This study was conducted in Southeast Queensland to determine the role of utility vehicles in spreading seeds. These vehicles were found to carry up to 397 seeds per vehicle and in all four seasons of the year, with the majority of these species being alien to Australia and/or Queensland. The largest seed loads were found in autumn in this summer rainfall environment. Seeds were shown to attach to all parts of the vehicle, often in mud picked up from the ground, affixed directly to the engine or radiator, or carried into the cabin by the driver. Therefore, much of the seed load is to be found on the underside, on the back and front mudguards while smaller collections were found in the cabin, on the radiator and engine, and on the tyres. Fewer viable seeds were found on the engine, presumably as desiccation and heat contributed more to their death on this part of the vehicle. One method used to reduce weed seed spread by vehicles in Queensland is washing and vacuuming of vehicles. From the present study, these procedures would need to be applied to all parts of the vehicle and in all seasons of the year.
‘Most significant change’ and the maximising cognition (MAXCOG) intervention: The views of clients, supporters and counsellors
Authors: Regan Bridget , Wells Yvonne 
Published: October 2017

ObjectivesTo explore the views of clients, supporters and counsellors about their experiences of the maximising cognition (MAXCOG) intervention.MethodsThe most significant change (MSC) method of analysis was used. Twenty‐three narrative accounts of the MAXCOG intervention and the ‘MSC’ that occurred were obtained. A panel, including experts from Alzheimer's Australia, the MAXCOG research team and clinicians from memory clinics, conducted a workshop to discuss and categorise the accounts.ResultsTwo subcategories of stories were identified: (i) An ‘acceptance group’ that focused on adjustment issues; and (ii) A ‘goal achievement’ group with a focus on goals and improvement in ability and confidence. These subcategories mapped closely to the original goals outlined for the MAXCOG intervention.ConclusionThe MAXCOG intervention was successful in assisting people to work towards goals and adjust psychologically to difficulties.
Evaluation of a new energy device for parenchymal transection in laparoscopic liver resection
Authors: Badawy Amr , Seo Satoru , Toda Rei , Fuji Hiroaki , Ishii Takamichi , Taura Kojiro , Yasuchika Kentaro , Kaido Toshimi , Uemoto Shinji 
Published: October 2017

AbstractIntroductionTHUNDERBEAT (TB) is a novel device that uses both ultrasonic and advanced bipolar energies for hemostasis. Several recent human studies have proved the safety and efficacy of TB in different surgical procedures, but there have been no similar studies about its efficacy in hepatic parenchymal transection. Therefore, the aim of the study was to assess the safety and efficacy of the TB device in laparoscopic liver resection.MethodsThis retrospective study compared TB and ultrasonic Harmonic devices in 80 patients who underwent laparoscopic liver resection from 2010 to 2016 in our institution. To reduce the selection bias, the two groups were matched in a 1‐to‐2 ratio on the basis of propensity scores.ResultsThere were no differences in the preoperative patient characteristics between the two groups. The extent of liver resection was comparable between the groups. Although the Harmonic group's intraoperative blood loss and operative time were less than that of the TB group, the differences were not statistically significant (P = 0.08, P = 0.32, respectively). Postoperative complications, mortality within 90 days, and hospital stay were comparable between the two groups.ConclusionTB is as safe and effective for parenchymal transection in laparoscopic hepatectomy as ultrasonic devices, but it is not a superior alternative.
Modeling, Evaluation and Optimization of Interlocking Shell Pieces
Authors: Yao Miaojun , Chen Zhili , Xu Weiwei , Wang Huamin 
Published: October 2017

AbstractWhile the 3D printing technology has become increasingly popular in recent years, it suffers from two critical limitations: expensive printing material and long printing time. An effective solution is to hollow the 3D model into a shell and print the shell by parts. Unfortunately, making shell pieces tightly assembled and easy to disassemble seem to be two contradictory conditions, and there exists no easy way to satisfy them at the same time yet. In this paper, we present a computational system to design an interlocking structure of a partitioned shell model, which uses only male and female connectors to lock shell pieces in the assembled configuration. Given a mesh segmentation input, our system automatically finds an optimal installation plan specifying both the installation order and the installation directions of the pieces, and then builds the models of the shell pieces using optimized shell thickness and connector sizes. To find the optimal installation plan, we develop simulation‐based and data‐driven metrics, and we incorporate them into an optimal plan search algorithm with fast pruning and local optimization strategies. The whole system is automatic, except for the shape design of the key piece. The interlocking structure does not introduce new gaps on the outer surface, which would become noticeable inevitably due to limited printer precision. Our experiment shows that the assembled object is strong against separation, yet still easy to disassemble.
ℒ0 Gradient‐Preserving Color Transfer
Authors: Wang Dong , Zou Changqing , Li Guiqing , Gao Chengying , Su Zhuo , Tan Ping 
Published: October 2017

AbstractThis paper presents a new two‐step color transfer method which includes color mapping and detail preservation. To map source colors to target colors, which are from an image or palette, the proposed similarity‐preserving color mapping algorithm uses the similarities between pixel color and dominant colors as existing algorithms and emphasizes the similarities between source image pixel colors. Detail preservation is performed by an ℒ0 gradient‐preserving algorithm. It relaxes the large gradients of the sparse pixels along color region boundaries and preserves the small gradients of pixels within color regions. The proposed method preserves source image color similarity and image details well. Extensive experiments demonstrate that the proposed approach has achieved a state‐of‐art visual performance.
Patch2Vec: Globally Consistent Image Patch Representation
Authors: Fried O. , Avidan S. , Cohen‐Or D. 
Published: October 2017

AbstractMany image editing applications rely on the analysis of image patches. In this paper, we present a method to analyze patches by embedding them to a vector space, in which the Euclidean distance reflects patch similarity. Inspired by Word2Vec, we term our approach Patch2Vec. However, there is a significant difference between words and patches. Words have a fairly small and well defined dictionary. Image patches, on the other hand, have no such dictionary and the number of different patch types is not well defined. The problem is aggravated by the fact that each patch might contain several objects and textures. Moreover, Patch2Vec should be universal because it must be able to map never‐seen‐before texture to the vector space. The mapping is learned by analyzing the distribution of all natural patches. We use Convolutional Neural Networks (CNN) to learn Patch2Vec. In particular, we train a CNN on labeled images with a triplet‐loss objective function. The trained network encodes a given patch to a 128D vector. Patch2Vec is evaluated visually, qualitatively, and quantitatively. We then use several variants of an interactive single‐click image segmentation algorithm to demonstrate the power of our method.
A Unified Cloth Untangling Framework Through Discrete Collision Detection
Authors: Ye Juntao , Ma Guanghui , Jiang Liguo , Chen Lan , Li Jituo , Xiong Gang , Zhang Xiaopeng , Tang Min 
Published: October 2017

AbstractWe present an efficient and stable framework, called Unified Intersection Resolver (UIR), for cloth simulation systems where not only impending collisions but also pre‐existing penetrations often arise. These two types of collisions are handled in a unified manner, by detecting edge‐face intersections first and then forming penetration stencils to be resolved iteratively. A stencil is a quadruple of vertices and it reveals either a vertex‐face or an edge‐edge collision event happened. Each quadruple also implicitly defines a collision normal, through which the four stencil vertices can be relocated, so that the corresponding edge‐face intersection disappear. We deduce three different ways, i.e., from predefined surface orientation, from history data and from global intersection analysis, to determine the collision normals of these stencils robustly. Multiple stencils that constitute a penetration region are processed simultaneously to eliminate penetrations. Cloth trapped in pinched environmental objects can be handled easily within our framework. We highlight its robustness by a number of challenging experiments involving collisions.