bluuebunny/crossref_metadata_2025_split huggingface dataset:
Heat Treatment of Recycled Battlefield Stainless-Steel Scrap for Cold Spray Applications
Authors: Massar Christopher , Tsaknopoulos Kyle , Sousa Bryer C. , Grubbs Jack , Cote Danielle L. 
Published: July 2020

AbstractThis work explores the impact of thermally preprocessing recycled austenitic stainless-steel powder for solid-state cold spray metal additive manufacturing with a focus on increasing deposition quality and coating density while maintaining mechanical integrity. The recycled stainless-steel scrap was gas-atomized using a novel mobile foundry manufactured by MolyWorks Materials Corporation. The powder was thermally treated based upon thermodynamic modeling using Thermo-Calc. The powder and sprayed specimens were characterized using particle size–shape analysis, microscopy, x-ray diffraction, and nanoindentation. Diffraction results highlighted the presence of both austenite and ferrite phases in the powder. Nanoindentation confirmed that thermally processing the feedstock powder at the austenitization temperature decreased the amount of ferrite present, which was consistent with the porosity observed in the deposits due to the lower yield strength of austenite relative to ferrite. The untreated powder deposits exhibited extensive porosity and microcracking, as opposed to the virtually fully dense deposit from the heat-treated powder.
Serine Incorporator 2 (SERINC2) Expression Predicts an Unfavorable Prognosis of Low-Grade Glioma (LGG): Evidence from Bioinformatics Analysis
Authors: Qi Chunxiao , Lei Lei , Hu Jinqu , Wang Gang , Liu Jiyuan , Ou Shaowu 
Published: July 2020

AbstractSerine Incorporator 2 (SERINC2) is a transmembrane protein that incorporates serine into membrane lipids. The function of SERINC2 in tumors has been reported, but the role of SERINC2 in gliomas is not fully understood. RNA-sequencing data from The Cancer Genome Atlas (TCGA) (530 cases of low-grade glioma (LGG) and 173 cases of glioblastoma multiforme (GBM)) and microarray data from Gene Expression Omnibus (GEO) (Accession No. GSE16011, 284 cases gliomas were included) were acquired. Bioinformatics analysis was performed as the primary method to examine the function of SERINC2 and its correlated genes in glioma. SERINC2 was highly expressed in GBM compared with LGG and normal brain tissues. Elevated SERINC2 expression predicted shorter 5-, 10-, and 15-year overall survival (OS) of LGG patients and isocitrate dehydrogenase-1 (IDH-1) mutation-type LGG patients but had no effect on the OS of GBM patients. Cox regression analysis showed that SERINC2 was an independent factor in LGG OS. Methylation analysis found that 13 CpG methylation sites (methylation450k) correlated with SERINC2 expression in LGG. The mRNA expression level of SERINC2 was significant lower in the DNA deletion group than in the intact and amplification groups. A total of 390 copositive and 244 conegative correlation genes with SERINC2 were obtained from LGG in TCGA-LGG and GSE16011. Gene ontology (GO) category and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses showed that the copositive correlation genes were primarily enriched in the mitotic process and cell cycle. Combining the results from the protein-protein interaction (PPI) network of SERINC2 correlation genes and CytoHubba led to the selection of 10 hub genes (CDC20, FN1, AURKB, AURKA, KIF2C, BIRC5, CCNB2, UBE2C, CCNA2, and CENPE). OncoLnc analysis confirmed that high expression levels of these hub genes were associated with poor OS in LGG. Our results suggested that aberrant SERINC2 expression existed in glioma and that its expression might be a potential prognostic marker in LGG patients. CDC20, FN1, AURKB, AURKA, KIF2C, BIRC5, CCNB2, UBE2C, CCNA2, and CENPE may be potential biomarkers and therapeutic targets for LGG.
Estimating the costs for the airport operator and airlines of a drone-related shutdown: an application to Frankfurt international airport
Authors: Wendt Philippe , Voltes-Dorta Augusto , Suau-Sanchez Pere 
Published: July 2020

AbstractCommercially-acquired drones threaten airport operations due to limited knowledge of airspace safety regulations or deliberate action by drone operators. This study aims to determine whether the investment cost of a drone-defence system can be justified in relation to the financial cost of a drone-related shutdown. To that end, a case study of Frankfurt Airport is carried out with simulations of different disruptions during a peak-activity period similar to the 2018 Gatwick drone incident. With data on passenger traffic and airline schedules, we developed a passenger recovery algorithm to determine the amount of delays caused by the disruptions and the costs for the airport operator and the airlines. Results show that the investment in a drone-defence system is offset by the costs of a 48-h continued closure or several smaller closures, but since the largest share of costs is borne by the airlines, investments should be shared between both stakeholders.
Plasma-Functionalized Water: from Bench to Prototype for Fresh-Cut Lettuce
Authors: Schnabel Uta , Handorf Oliver , Stachowiak Joerg , Boehm Daniela , Weit Christoph , Weihe Thomas , Schäfer Jan , Below Harald , Bourke Paula , Ehlbeck Joerg 
Published: July 2020

AbstractFresh-cut produce like lettuce may contain a very high microbial load, including human pathogens. Therefore, the need for antimicrobial agents at post-harvest stages to mitigate microbial cross-contamination and growth is evident. Sanitation based on non-thermal plasma (NTP) reveals innovative food processing possibilities by application at different points along the food chain, for production, modification, and preservation, as well as in packaging of plant- and animal-based food. The aim of the present study was to evaluate the applicability of plasma-treated water (PTW) as antimicrobial process water additives for washing in fresh-cut lettuce processing. Antibacterial activities of PTW the natural occurring microflora of lettuce were examined. Different process variants of PTW application inside the washing process were investigated. Fresh-cut lettuce were investigated regarding microbiological safety and food quality. Samples were analyzed for antimicrobial and metabolic activity as well as metabolic vitality to prove food safety. The investigations for food quality included color and texture analyses and nitrate concentration detection in fresh tissue as well as microscopic measurements by scanning electron microscopy (SEM) and atomic force microscopy (AFM) for tissue surface structure and transmission electron microscopy (TEM) for cell organelle investigations. The application of PTW allowed up to 5 log10 cycle reduction, depending on the process variant and scale (lab and pilot scale). The increase of antimicrobial activity was accompanied by a reduction of metabolic activity, but not consequently by a decrease in metabolic vitality. Food quality was not affected by the use of PTW in the washing process of the fresh-cut lettuce. The promising results in color and texture were supported by the results of the microscopic assays. These promising results may lead to an industrial application of PTW as process water additive in fresh-cut produce processing to reduce the microbial load on the food surface and in addition in the process water or on food processing surfaces.
Fish as a source of (micro)nutrients to combat hidden hunger in Zambia
Authors: Nölle Nils , Genschick Sven , Schwadorf Klaus , Hrenn Holger , Brandner Sonja , Biesalski Hans Konrad 
Published: July 2020

AbstractFish is an excellent source of protein, but can also be a good source of micronutrients. In Zambia fish is the main animal food source for poor women and children, two groups which are likely to suffer from inadequate micronutrient supply (hidden hunger). Although the potential of fish to combat hidden hunger is increasingly recognized and fisheries and aquaculture have been identified as key resources in addressing food and nutrition security issues in Zambia, only limited information on the nutrient composition of consumed fish species and products is available. Thus the objectives of this paper are to give a quantitative description of the nutritional composition of fish and fish products consumed in Zambia, and to estimate their potential to the Recommended Daily Intakes (RDIs) of micronutrients. Therefore approximately forty fish species in various kinds of processing were collected and prepared following local customs. Samples were analysed for macronutrients such as protein and fat. Contents of B-vitamins and minerals were also analysed. Protein content was overall similar, while fat content and fatty acid composition varied considerably. Most fish contained high amounts of niacin and cobalamin, but small fish usually contained the most cobalamin. Small fish contained up to 32 times the amount of calcium than other fish and often contained more iron and zinc, too. Overall small fish species, which are commonly consumed by poor women and children, can be used to combat hidden hunger in Zambia, due to high levels of cobalamin, calcium, iron and zinc.
Potential health risk and levels of heavy metals in water resources of lead–zinc mining communities of Abakaliki, southeast Nigeria
Authors: Obasi Philip Njoku , Akudinobi Bennard Benedict 
Published: July 2020

AbstractHeavy metals are potential health risk, especially in mining sites where they deteriorate from sulfide-rich ore bodies. Lead, cadmium, arsenic and mercury are very carcinogenic, while others are toxic. The assessment of the levels of these metals in water resources of the lead–zinc mining communities of Enyigba, Mkpuma Akpatakpa, Ameka, Amorie, Amanchara and Alibaruhu was carried out, and the potential health risk has been investigated. These areas make up the main mining communities of Abakaliki, where active and abandoned mines are located. One hundred and six water samples were analyzed in two seasons using atomic absorption spectrophotometric and ultra-violet/visible spectroscopy. Result indicates levels of Pb2+ > Hg2+ > As2+ > Cd2+ > Mn2+ > Ag2+ > Se2+ > Ni2+ > Cr2+ > Cu2+ in water sources. High levels of Mn2+(63.45 mg/L), Pb2+(11.42 mg/L), Cr3+(14.60 mg/L), Ni2+(1.260), Cd2+(15.67 mg/L), Ag+(6.06 mg/L), Hg2+(2.60 mg/L), As(4.13 mg/L), Se2+(2.68 mg/L), Zn2+(10.53 mg/L) and Co2+(0.9 mg/L) above the WHO recommended standard for drinking water were observed. Only Cu2+ recorded safe concentrations in 100% samples analyzed. Levels of associated metals including Pb2+, As, Hg2+, Se2+ and Cd2+ are higher in groundwater especially in areas close to the active mines; this is due to mineralization in the area. Seasonal analysis shows a decreased concentration of chemical constituents in the rainy season relative to the dry season. Potential health risk is associated with accumulation of toxic heavy metals in tissues including Parkinson disease, arsenicosis, acrodynia, selenoises, Alzheimer’s disease, hair loss, mental imbalance and abortion in women abound in the areas. Alternative water supply sources and sensitization on the potential health risk are highly advocated in these communities.
Associations of coffee drinking with physical performance in the oldest-old community-dwelling men The Helsinki Businessmen Study (HBS)
Authors: Jyväkorpi Satu K. , Urtamo Annele , Kivimäki Mika , Strandberg Timo E. 
Published: July 2020

Abstract
Background
Habitual coffee drinking has been associated with lower risk of various chronic diseases linked to poor physical performance.

Objective
We explored cross-sectional associations between coffee consumption and physical performance among oldest-old community-dwelling men in the Helsinki Businessmen Study (HBS).

Methods
A random sample of HBS survivors (n = 126, mean age 87 years) attended a clinic visit in 2017/2018, including measurements of body composition, physical performance [Short Physical Performance Battery (SPPB)], and cognition. Coffee consumption was retrieved from 3-day food diaries.

Results
Coffee consumption was positively associated with higher gait speed (p = 0.003), SPPB score (p = 0.035), and chair rise points (p = 0.043). Association of coffee with gait speed remained after adjustment for age, waist circumference, physical activity, pulse rate, and high-sensitivity C-reactive protein.

Conclusion
Higher coffee consumption was independently associated with better physical performance reflected as faster gait speed in oldest-old men.
Motor Abilities and the Motor Profile in Individuals with Williams Syndrome
Authors: Mayall Leighanne A. , D’Souza Hana , Hill Elisabeth L. , Karmiloff-Smith Annette , Tolmie Andrew , Farran Emily K. 
Published: July 2020

Abstract
Objectives
Motor difficulties are present across a range of neurodevelopmental disorders, impacting on the development of other domains and on overall quality of life. One population that shows difficulties with their motor abilities is composed of individuals with Williams syndrome (WS). The purposes of the current study were to investigate the motor profile of individuals with WS and to investigate the relationships between physical activity and motor performance in this group.

Methods
The motor performance of 36 individuals with WS was measured using the Bruininks-Oseretsky Test of Motor Proficiency, second edition (BOT2-SF) short form. Physical activity was also measured using our novel questionnaire. Performance on both measures was compared with that of typically developing (TD) children aged 4 to 7 years (N = 40).

Results
Results indicate that the individuals with WS (aged 12 to 50 years) performed at the level of TD 4- to 5-year olds with respect to overall motor ability. On examination of the motor profile, a relative strength in upper limb control and a relative weakness in balance were identified for this group. While a correlation was found between motor ability and the amount of physical activity that participants engaged in on a weekly basis in the TD group, no such relationship was found in the WS group.

Conclusions
The motor problems that individuals with WS show in childhood persist into older childhood and adulthood, and akin to the WS cognitive profile, there are relative strengths and weaknesses in the WS motor profile. The lack of correlation between physical activity and motor ability in the WS group may be due to the lack of opportunity to access age- and ability-appropriate activities.
Bayesian Inference for Multidimensional Scaling Representations with Psychologically Interpretable Metrics
Authors: Gronau Quentin F. , Lee Michael D. 
Published: July 2020

AbstractMultidimensional scaling (MDS) models represent stimuli as points in a space consisting of a number of psychological dimensions, such that the distance between pairs of points corresponds to the dissimilarity between the stimuli. Two fundamental challenges in inferring MDS representations from data involve inferring the appropriate number of dimensions and the metric structure of the space used to measure distance. We approach both challenges as Bayesian model-selection problems. Treating MDS as a generative model, we define priors needed for model identifiability under metrics corresponding to psychologically separable and psychologically integral stimulus domains. We then apply a differential evolution Markov-chain Monte Carlo (DE-MCMC) method for parameter inference, and a Warp-III method for model selection. We apply these methods to five previous data sets, which collectively test the ability of the methods to infer an appropriate dimensionality and to infer whether stimuli are psychologically separable or integral. We demonstrate that our methods produce sensible results, but note a number of remaining technical challenges that need to be solved before the method can easily and generally be applied. We also note the theoretical promise of the generative modeling perspective, discussing new and extended models of MDS representation that could be developed.
Insights into drumlin development from ground-penetrating radar at Múlajökull, Iceland, a surge-type glacier
Authors: Woodard Jacob B. , Zoet Lucas K. , Benediktsson Ívar Ö. , Iverson Neal R. , Finlayson Andrew 
Published: July 2020

AbstractDrumlins form at the ice/bed interface through subglacial processes that are not directly observable. The internal stratigraphy of drumlins provides insight into how they developed and associated subglacial processes, but traditional stratigraphic logging techniques are limited to natural exposures and excavations. Using ground-penetrating radar, we imaged the internal stratigraphy of seven drumlins from a recently exposed drumlin field in the forefield of Múlajökull, Iceland. Data were collected with 100 and 200 MHz antennas with maximum resolvable depths of 8 and 4 m, respectively. Longitudinal echograms contained coherent down-ice dipping reflectors over the lengths of the drumlins. Near the drumlin heads (i.e., stoss sides), down-glacier dipping beds lie at high angles to the surface, whereas on the lee sides, the down-glacier dipping beds lie at low angles, or conform, to drumlin surfaces. Transverse echograms exhibited unconformities along the flanks of drumlin heads and conformable bedding across the lee side widths of the drumlins. These observations were ground-truthed with stratigraphic logs from a subset of drumlins and good agreement was found. The stratigraphic patterns support previous conclusions that drumlins at Múlajökull formed on a deformable bed through both depositional and erosional processes which may alternate between its surge and quiescent phases.
The influence of size on the trophic interactions between juveniles of two syntopicTrachinotusspecies
Authors: Silva de Souza Joice , Neves dos Santos Luciano 
Published: July 2020

AbstractSyntopic species with similar anatomic configuration may face strong competition for trophic resources, thus relying on developed mechanisms to ensure coexistence. The present study investigated the influence of body size on trophic interactions between juveniles of two closely related fish species at three sandy beaches in south-eastern Brazil. A total of 150 fish were sampled, where 103 were identified asTrachinotus carolinus(mean ± SE: weight = 9 g ± 1.13) and 47 asTrachinotus goodei(weight = 46.7 g ± 3.34). A significant size-difference between juvenileTrachinotuswas detected by a null-model analysis (P= 0.04), withT. carolinus(TL = 79.6 mm ± 2.4) presenting a smaller body size thanT. goodei(TL = 147.7 mm ± 4.2). The main prey items consumed byT. carolinuswerePerna perna(IAi = 0.76) andEmerita brasiliensis(IAi = 0.18), whereas the latter was the majorT. goodeidietary prey (IAi = 0.71). Both prey were correlated with larger-sized juveniles of each pompano species, whereas smaller fish shared non-preferred trophic items. Such opportunistic behaviour of smaller juveniles may account for the dietary overlap detected between theTrachinotusspecies (P= 0.09). Size-related dietary partitioning was observed for the largestT. goodeijuveniles, which displayed only a slight overlap withT. carolinus, and between juveniles belonging to the small and medium size groups of each pompano species. Therefore, food partitioning related to pompano body size seems to be especially important for the smallest juveniles, as they present the highest vacuity (particularlyT. carolinus) in the sampled beaches, suggesting that these individuals are under intra- and interspecific competitive pressure, which may affect local coexistence.
Why Georgia? A Curious and Unappreciated Pioneer on the Road to Early Youth Enfranchisement in the United States
Authors: SPRINGER MELANIE JEAN 
Published: July 2020

AbstractIn 1943, Georgia’s constitution was amended to lower the voting age to eighteen, making it the first—and for twelve years, the only—state in the Union to establish a voting-age requirement below twenty-one. Despite being widely considered at the time by several national and state political actors, Georgia’s reform represents an important and unappreciated historical puzzle. First, few would regard mid-twentieth-century Georgia as being even modestly progressive, especially regarding voting rights. Second, there is no evidence that an organized group lobbied for the reform. Further, there is no reason why lowering the voting age was inherently unique to Georgia qua Georgia. Instead, this study offers a detailed historical analysis highlighting the dedication of its young governor, and argues that Ellis Arnall’s political entrepreneurialism coupled with growing intraparty factionalism in Georgian politics and strategic timing facilitated this rare instance of electoral progressivism in the Deep South.
PAYG challenge for preferential migration
Authors: Aslanyan Gurgen , Mariev Oleg 
Published: July 2020

AbstractThe current study assesses the role of the pay-as-you-go system as an intergenerational redistributive mechanism while immigration control is considered. A theoretical model of a small open economy populated with overlapping generations of heterogeneous agents is used to show that skill-favouring immigration policies are, under rather permissive conditions, welfare depriving for the overall population. However, the policy-setting generation is shown to benefit from immigration control, thus decreasing the welfare for the future population.
Neither protective nor harmonized: the crossborder regulation of medical devices in the EU
Authors: Jarman Holly , Rozenblum Sarah , Huang Tiffany J. 
Published: July 2020

AbstractTo what extent does inadequate market regulation contribute to poor health outcomes? A series of prominent scandals involving harmful medical devices has made improving the regulation of these devices an urgent problem for the European Union (EU). This is, however, a specific example of a general phenomenon. The EU remains first and foremost a large and integrated market within which the EU institutions have considerable regulatory authority. Even if there is little EU commitment to a health or social policy agenda, its use of that regulatory authority shapes health care cost and quality and should be understood as health policy. We use data from EU-level and national policy documents to analyse the EU's current regulatory framework for medical devices and assess its likely future efficacy. Despite revising the medical devices directive to require more stringent pre-authorization requirements for high-risk medical devices and improvements in post-market surveillance, the key underlying problems of market fragmentation and patient safety persist. Without strong and consistent support for the implementation of the new directive, the likely result is the status quo, with significant consequences for health in Europe.
Bicameralism and government formation: does bicameral incongruence affect bargaining delays?
Authors: Giannetti Daniela , Pedrazzani Andrea , Pinto Luca 
Published: July 2020

AbstractThe effects of bicameral legislatures on government formation have attracted scholarly attention since Lijphart’s (1984) seminal contribution. Previous research found support for the ‘veto control hypothesis,’ showing that bicameralism affects coalition governments’ composition and duration. However, the effects of bicameralism on the duration of the bargaining process over government formation have yet to be explored. Our work contributes to this area of research by focusing on the impact of bicameralism on bargaining delays. We show that the duration of the bargaining process over government formation decreases at increasing levels of partisan incongruence of the two chambers, especially in those legislative assemblies in which the upper chamber plays a relevant role in the policy-making process. Such empirical evidence is in contrast with the conventional expectation according to which bicameralism should delay the government formation process, as it introduces an additional element of complexity in the bargaining environment. We test our hypothesis by using a novel data set about the partisan composition of upper and lower chambers in 12 Western and Eastern European democracies over the postwar period.