bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sentiment-based predictions of housing market turning points with Google trends
Authors: Dietzel Marian Alexander 
Published: February 2016

Purpose– Recent research has found significant relationships between internet search volume and real estate markets. This paper aims to examine whether Google search volume data can serve as a leading sentiment indicator and are able to predict turning points in the US housing market. One of the main objectives is to find a model based on internet search interest that generates reliable real-time forecasts.Design/methodology/approach– Starting from seven individual real-estate-related Google search volume indices, a multivariate probit model is derived by following a selection procedure. The best model is then tested for its in- and out-of-sample forecasting ability.Findings– The results show that the model predicts the direction of monthly price changes correctly, with over 89 per cent in-sample and just above 88 per cent in one to four-month out-of-sample forecasts. The out-of-sample tests demonstrate that although the Google model is not always accurate in terms of timing, the signals are always correct when it comes to foreseeing an upcoming turning point. Thus, as signals are generated up to six months early, it functions as a satisfactory and timely indicator of future house price changes.Practical implications– The results suggest that Google data can serve as an early market indicator and that the application of this data set in binary forecasting models can produce useful predictions of changes in upward and downward movements of US house prices, as measured by the Case–Shiller 20-City House Price Index. This implies that real estate forecasters, economists and policymakers should consider incorporating this free and very current data set into their market forecasts or when performing plausibility checks for future investment decisions.Originality/value– This is the first paper to apply Google search query data as a sentiment indicator in binary forecasting models to predict turning points in the housing market.
Analysis of manufacturing strategy in developing countries
Authors: Ehie Ike , Muogboh Obinna 
Published: February 2016

Purpose
– The purpose of this paper is to formulate the manufacturing strategy in a developing country with particular reference to Nigeria in sub-Saharan African country.

Design/methodology/approach
– Using survey methodology and the partial least squares – structural equation modeling technique, The authors find that in addition to the four basic environmental factors – business cost, labor availability, competitive hostility and environmental dynamism, both government policies and the adopted manufacturing practices have significant effects on the manufacturing strategic priorities.

Findings
– Among other findings, the environmental factors of government policies and the type of manufacturing practices adopted have significant effects on manufacturing strategy.

Research limitations/implications
– Further studies should explicitly look into the effect of the adopted manufacturing strategy on company performance. Possibly, a case study research might be considered to establish this relationship.

Practical implications
– As manufacturing firms continue to experience greater competition, especially from China, and given the technological advancement in manufacturing, the business environment facing Nigerian manufacturing companies is likely to become more dynamic, complex, diverse and even hostile. Under such a turbulent climate, the configuration and effective deployment of manufacturing strategies is imperative to achieving superior business performance.

Social implications
– A more effective strategy will make companies more competitive in the market place, thus creating employment in a sector that has witnessed declining growth in employment.

Originality/value
– The linkage between environmental factors and manufacturing strategy has been studied widely. However, this study reveals the role of government policies and manufacturing practices in formulating manufacturing strategy in a developing country context.
Closed-loop supply chain network equilibrium model and its Newton method
Authors: Xu Hongru , Cao Erbao 
Published: February 2016

Purpose
– The purpose of this paper is to develop a closed-loop supply chain (CLSC) network equilibrium model which consists of manufactures, retailers and consumer markets engaged in a Cournot pricing game with heterogeneous multi-product.

Design/methodology/approach
– The authors model the optimal behavior of the various decision makers and CLSC network equilibrium, and derive the equilibrium conditions based on variational inequality approach. The authors present a new Newton method to solve the proposed model.

Findings
– The authors find that the algorithm converges to the solution rapidly for most cases. Besides, the authors discuss the effect of some parameters on the equilibrium solution of the model, and give some insights for policy makers, such as improving the technology level of the manufacturer, reducing the cost of waste disposal and increase the minimum ration of used product to total quantity.

Originality/value
– The authors derive the network equilibrium conditions by the variational inequality formulation in order to obtain the computation of the equilibrium flows and prices. The authors present a new Newton method to solve the proposed model. The authors discuss the effect of some parameters on the equilibrium solution of the model, and give some managerial insights
Using citizen‐collected wildlife sightings to predict traffic strike hot spots for threatened species: a case study on the southern cassowary
Authors: Dwyer Ross G. , Carpenter‐Bundhoo Luke , Franklin Craig E. , Campbell Hamish A. 
Published: February 2016

Summary

Assessing the causal factors underpinning the distribution and abundance of wildlife road‐induced mortality can be challenging. This is particularly ubiquitous for rare or elusive species, because traffic strikes occur infrequently for these populations and information about localized abundance, distribution and movements are generally lacking. Here, we assessed whether citizen‐collected sightings data may serve as a low cost and efficient means of gathering long‐term animal roadside presence and road‐crossing information, which could then be used to assess the causative factors and direct mitigation actions aimed at reducing wildlife traffic strike frequency.

We explored this principle using two decades of traffic strike records and citizen‐collected sightings of the southern cassowary Casuarius casuarius johnsonii. Roads have bisected the cassowaries’ rain forest habitat and despite considerable investment into mitigation strategies for this species, road‐induced mortality is considered one of the primary threatening processes affecting the population.

Using a Bayesian approach and controlling for spatial autocorrelation with conditional autoregressive models, we demonstrate that traffic strikes are primarily a density‐dependent process in the southern cassowary. That is, traffic strike clusters occurred along stretches of road where cassowaries were most frequently sighted. There were, however, road stretches where traffic strike frequency was greater than predicted by the number of roadside sightings, illustrating when and where density‐independent processes increased the mortality potential for a road‐crossing cassowary.

Synthesis and applications. This is the first time that citizen‐collected sightings data have been used to systematically inform upon the abundance and distribution of wildlife traffic strike. The technique not only predicts where incidents are likely to occur but also helps us to understand the factors responsible for strike clustering. While not a replacement for systematic surveys, we highlight citizen‐collected sightings data as a low‐cost option when assessing contributing factors to vehicle‐induced mortality. Accounting for density‐dependent and density‐independent processes will ensure the most effective allocation of resources when implementing wildlife traffic strike mitigation.
Inflammatory bowel disease in pregnancy: a population‐based study of prevalence and pregnancy outcomes
Authors: Shand AW , Chen JS , Selby W , Solomon M , Roberts CL 
Published: February 2016

ObjectiveTo determine the prevalence of the inflammatory bowel diseases (IBD), ulcerative colitis (UC) and Crohn's disease (CD), in pregnant women and determine pregnancy and fetal/neonatal outcomes.DesignPopulation‐based cohort study.SettingNew South Wales, Australia, 2001–11.PopulationA total of 630 742 women who delivered at ≥20 weeks of gestation.MethodsDescriptive and multivariate regression analyses of perinatal data linked to hospital admission data. We compared birth outcomes of women with and without a documented diagnosis of IBD.Main outcome measuresCaesarean section, severe maternal morbidity, preterm birth <37 weeks of gestation, planned preterm birth, small‐for‐gestational‐age (birthweight <10th centile), perinatal mortality (stillbirth/neonatal death ≤28 days).ResultsIn all, 1960 women (0.31%) with IBD, who had 2781 births (1183 UC, 1287 CD and 311 IBD‐indeterminate). Women with IBD were more likely than women without IBD to have a caesarean section [41.5 versus 28.2%, adjusted risk ratio (aRR) 1.38, 95% CI 1.31–1.45], severe maternal morbidity (2.6 versus 1.6%, aRR 1.54, 95% CI 1.17–2.03), preterm birth (9.7 versus 6.6%, aRR 1.47, 95% CI 1.30–1.66), planned preterm birth (5.3 versus 2.9%, aRR 1.74, 95% CI 1.47–2.07), and their infants to be small‐for‐gestational‐age (9.7 versus 9.5%, aRR 1.19, 95% CI 1.04–1.36). There was no evidence of a difference in perinatal mortality.ConclusionPregnancy‐associated IBD is more common than previously reported. Pregnancies complicated by IBD at or near the time of birth have significantly higher rates of adverse pregnancy outcomes than pregnancies of women without IBD.Tweetable abstractIncreased rates preterm birth and caesarean section in women with inflammatory bowel disease.
Incidence and occupational variation of ovarian granulosa cell tumours in Finland, Iceland, Norway and Sweden during 1953–2012: a longitudinal cohort study
Authors: Bryk S , Pukkala E , Martinsen J‐I , Unkila‐Kallio L , Tryggvadottir L , Sparén P , Kjærheim K , Weiderpass E , Riska A 
Published: February 2016

ObjectiveTo determine the incidence and occupational variation of granulosa cell tumours (GCTs) in Finland, Iceland, Norway and Sweden over a 60‐year period, 1953–2012.DesignA longitudinal cohort study.Setting and populationFinland, Iceland, Norway and Sweden and a total of 249 million women over a 60‐year period (1953–2012). The NOCCA (Nordic Occupational Cancer Study) included 6.4 million women with 776 incident GCT cases diagnosed until the end of follow up.MethodsIncidence rates were calculated from the national cancer registries and compared using quasi‐Poisson regression models. Occupation‐specific standardised incidence ratios (SIRs) were calculated from the Nordic Occupational Cancer (NOCCA) database.Main outcome measuresIncidence rates and standardised incidence ratios.ResultsThe age‐adjusted (World Standard) incidence rates remained quite constant: about 0.6–0.8 per 100 000 for most of the study period. The age‐specific incidence was highest at 50–64 years of age. There were no occupations with significantly increased risk of GCT. Major changes in the use of oral contraceptives, postmenopausal hormonal therapy, fertility rate and lifestyle in general during the study period and among different occupational categories do not appear to have a marked effect on the incidence of GCT.ConclusionOur findings support the concept of GCT as a primarily sporadic, not exposure‐related, cancer.Tweetable abstractThe Nordic incidence rates of GCTs show stability over time and among different occupational categories.
Forensic Investigation of Formaldehyde in Illicit Products for Hair Treatment by DAD‐HPLC: A Case Study
Authors: Oiye Erica N. , Ribeiro Maria Fernanda M. , Okumura Leonardo L. , Saczk Adelir A. , Ciancaglini Pietro , de Oliveira Marcelo F. 
Published: February 2016

AbstractThe illegal use of formalin (commercial formaldehyde) in cosmetic products harms the health of individuals exposed to this substance. Over the last years, the commercial availability of these products, especially those containing irregular dosage of formaldehyde, has increased in Brazil. This work analyzes some products for hair treatment available in the Brazilian market and verifies their safety. The adopted analytical methodology involved sample derivatization with 2,4‐dinitrophenylhydrazine, followed by high‐performance liquid chromatography with ultraviolet detection (UV–VIS) at λ = 365 nm. The limit of quantification is 2.5 × 10−3% w/w, and the recovery tests were around 93%. Some of the samples contained high and illegal formaldehyde levels ranging from 9% to 19% (w/w) and others presented suitable concentrations of the analyte. On the basis of the results, this work discusses the efficiency and practicality of this analytical method for forensic purposes.
Multivariate Classification of Original and Fake Perfumes by Ion Analysis and Ethanol Content
Authors: Gomes Clêrton L. , de Lima Ari Clecius A. , Loiola Adonay R. , da Silva Abel B. R. , Cândido Manuela C. L. , Nascimento Ronaldo F. 
Published: February 2016

AbstractThe increased marketing of fake perfumes has encouraged us to investigate how to identify such products by their chemical characteristics and multivariate analysis. The aim of this study was to present an alternative approach to distinguish original from fake perfumes by means of the investigation of sodium, potassium, chloride ions, and ethanol contents by chemometric tools. For this, 50 perfumes were used (25 original and 25 counterfeit) for the analysis of ions (ion chromatography) and ethanol (gas chromatography). The results demonstrated that the fake perfume had low levels of ethanol and high levels of chloride compared to the original product. The data were treated by chemometric tools such as principal component analysis and linear discriminant analysis. This study proved that the analysis of ethanol is an effective method of distinguishing original from the fake products, and it may potentially be used to assist legal authorities in such cases.
A Study of the Presence of Gunshot Residue in Pittsburgh Police Stations using SEM/EDS and LC‐MS/MS
Authors: Ali Leah , Brown Kyle , Castellano Holly , Wetzel Stephanie J. 
Published: February 2016

AbstractDue to possible secondary transfer of gunshot residue (GSR) onto a suspect in police custody prior to sampling, a baseline must be created for the amount of GSR present. With an increase of “lead free” ammunition, testing for both gunpowder and primer GSR is relevant. Seventy samples were collected using carbon‐coated adhesive stubs from four Pittsburgh Police Stations and vehicles to investigate these locations as sources of secondary GSR contamination. These seventy samples were analyzed for primer GSR using scanning electron microscopy‐energy‐dispersive X‐ray spectrometry. One primer GSR particle was detected; no sample was classified as positive for primer GSR. These same samples were then analyzed for gunpowder GSR using liquid chromatography coupled to tandem mass spectrometry to test for akardite II, ethylcentralite, diphenylamine, N‐nitrosodiphenylamine, 2‐nitrodiphenylamine, and 4‐nitrodiphenylamine. Ethylcentralite was quantifiable in two test samples. These results suggest there is a negligible potential for secondary transfer of primer and gunpowder GSR.
Shadows on the landscape: an inquiry into the value of some Australian places
Authors: Sumner Ray 
Published: February 2016

AbstractIn 1922, Australian places connected with a solar eclipse were of world‐historical significance as they were associated with empirical confirmation of Einstein's general theory of relativity. They also formed a major part of Australian national consciousness, although they have since reverted to lost geographies. An exploration of Australian reception of eclipse science leads to questions of official heritage construction and stereotypical national identity. An argument is presented for the importance of intangible heritage at national, communal, and individual levels. At the complex intersection between memory and identity, place value is investigated within wider social‐political formations with emphasis on participation across perceived boundaries of social class, gender, and ethnicity, including the valuable role of Aboriginal peoples.
Cyanobacterial gardens: the liverwort Frullania asagrayana acts as a reservoir of lichen photobionts
Authors: Cornejo Carolina , Scheidegger Christoph 
Published: February 2016

SummaryCyanobacteria are important mediators of unrelated lichen species, which form epiphytic communities that share the same cyanobiont. No study to date, however, has considered the role of cyanobacteria as mediator between lichens and bryophytes. In the present study, DNA barcoding (16S rDNA, rbcLX) was used to identify filamentous cyanobacteria living in close association with members of an epiphytic liverwort‐lichen community on balsam fir in Newfoundland. This study is the first to confirm the presence of Rhizonema strains in boreal forests where they are associated with the liverwort Frullania asagrayana and several lichen species. The majority of cyanobacterial haplotypes can associate with the liverwort, however, some lichen species appear to be more selective for single or closely related haplotypes. Some Rhizonema strains were found exclusively in association with boreal lichens, while others seem to be globally distributed and involved in different lichen symbioses of unrelated fungal lineages and of varying ecological traits. Complex biological interactions in a cyanobacteria‐mediated guild are proposed here, which explains composition and dynamics in bryophyte and lichen‐dominated epiphytic communities.
Filamentous phage SW1 is active and influences the transcriptome of the host at high‐pressure and low‐temperature
Authors: Jian Huahua , Xiong Lei , Xu Guanpeng , Xiao Xiang 
Published: February 2016

SummaryAs the most abundant biological entities on the planet, viruses are involved in global biogeochemical cycles, and they have been shown to play an important role in the overall functioning of the deep‐sea ecosystem. Nevertheless, little is known about whether and how deep‐sea viruses affect the physiology of their bacterial hosts. Previously, the filamentous phage SW1 was identified in the bathypelagic bacterium Shewanella piezotolerans WP3, which was isolated from the upper sediment of West Pacific ocean. In this study, phage SW1 was shown to be active under in situ environmental conditions (20 MPa and 4°C) by transmission electron microscopy and reverse‐transcription quantitative polymerase chain reaction. Further comparative analysis showed that SW1 had a significant influence on the growth and transcriptome of its host. The transcription of genes responsible for basic cellular activities, including the transcriptional/translational apparatus, arginine synthesis, purine metabolism and the flagellar motor, were down‐regulated by the phage. Our results present the first characterization of a phage–host interaction under high‐pressure and low‐temperature conditions, which indicated that the phage adjusted the energy utilization strategy of the host for improved survival in deep‐sea environments.
Habitat partitioning of marine benthic denitrifier communities in response to oxygen availability
Authors: Wittorf Lea , Bonilla‐Rosso Germán , Jones Christopher M. , Bäckman Ola , Hulth Stefan , Hallin Sara 
Published: February 2016

SummaryDenitrification is of global significance for the marine nitrogen budget and the main process for nitrogen loss in coastal sediments. This facultative anaerobic respiratory pathway is modular in nature and the final step, the reduction of nitrous oxide (N2O), is performed by microorganisms with a complete denitrification pathway as well as those only capable of N2O reduction. Fluctuating oxygen availability is a significant driver of denitrification in sediments, but the effects on the overall N2O‐reducing community that ultimately controls the emission of N2O from marine sediments is not well known. To investigate the effects of different oxygen regimes on N2O reducing communities, coastal marine surface sediment was incubated in microcosms under oxic, anoxic or oscillating oxygen conditions in the overlying water for 137 days. Quantification of the genetic potential for denitrification, anammox and respiratory ammonification indicated that denitrification supported nitrogen removal in these sediments. Furthermore, denitrifiers with a complete pathway were identified as the dominant community involved in N2O reduction, rather than organisms that are only N2O reducers. Specific lineages within each group were associated with different oxygen regimes suggesting that oxygen availability in the overlying water is associated with habitat partitioning of N2O reducers in coastal marine surface sediments.
Amphibious adaptations in a newly recognized amphibious fish: Terrestrial locomotion and the influences of body size and temperature
Authors: Magellan Kit 
Published: February 2016

AbstractAmphibious animals are adapted for both aquatic and terrestrial habitats. The conflicting requirements for dual habitats are perhaps most pronounced in the air‐breathing fishes, which represent an intermediate stage between the totally aquatic habitat and terrestrial colonization. A key requirement for amphibious fishes is terrestrial locomotion. The different densities and compositions of air and water impose constraints for efficient terrestrial locomotion that differ from those required for aquatic locomotion. I investigated terrestrial locomotion in a small South African fish, Galaxias ‘nebula’, by exposing 60 individual fish to air in specially designed raceways and quantifying movement type and occurrence as a function of availability of water, fish size and environmental temperature. Nebula showed a sustained undulating form of terrestrial locomotion characteristic of amphibious fishes and also a transient ballistic locomotion (jumps) typical of fully aquatic species. Terrestrial movement was influenced by fish size, with medium‐sized fish undertaking more jumps towards water, and fewer jumps away from water, than their smaller or larger conspecifics. In contrast, axial undulation was mainly influenced by temperature. However, there was no consistent pattern in temperature effects presumably because temperature is just one of a suit of environmental factors that may affect terrestrial locomotion. Nebula's amphibious adaptations allow it to cope with the unpredictability inherent in its natural environment.