bluuebunny/crossref_metadata_2025_split huggingface dataset:
Heuristic Based Scheduling for Toothpaste Filling Problem
Authors: Promjun S , Jarumaneeroj P 
Published: July 2019

Abstract
This research focuses on the development of a heuristic method for the Toothpaste Filling Problem (TFP) whose complication lies on a vast variety of products (formulae and sizes), together with specific restrictions on filling machines and storage tanks. More specifically, filling machines are non-identical, each of which has different speeds and capacities for filling toothpaste of various sizes. As unloading requires storage tanks, each with much larger capacity when compared to one particular production order, a tank will be then matched with several production orders and be repositioned among filling machines to avoid unnecessary changeovers. We solve the TFP by means of a two-phase method, where the initial solution is constructed by an Earliest Due Date (EDD) dispatching rule. Once completed, the initial solution is then iteratively improved by a series of improvement operators, mimicking the concept of Variable Neighbourhood Search (VNS), until no improvement could be found. We test our heuristic on a set of sample instances acquired from one of the biggest consumer products manufacturers in Thailand. Impressively, when compared to the current practice, our proposed heuristic could help reduce makespan by 32% on average, or equivalently an annual saving of $0.6 million, mainly from the reduction on overtime payment and changeovers.
A Review on Joint Optimization of Maintenance with Production Planning and Spare Part Inventory Management
Authors: Hwang J Q , Samat H A 
Published: July 2019

Abstract
In maintenance system, the increasing complexity of the manufacturing system and the joint optimization of maintenance is catching the attention of researches. Therefore, the aim of the paper is to review the literatures on joint optimization of maintenance with other interrelated functions in the manufacturing system. The classification is made based on the type of decision variables, which are production planning (production scheduling, lot sizing and buffer) and spare part inventory management. The relationships and dependencies are explain in the discussion to show the significance of the integrated model. Most studies considered two functions in their integrated model, which is either maintenance policy with production planning or maintenance policy with spare part management. It can be observe that research on optimization of more than two functions is still new and yet to be explore. Moreover, most researches focused at the decision-making phase without extensive discussion in various functions that might involve. The objective function which is the cost is also presented in the paper. The objective function is categorized into two criteria: maintenance related cost and also inventory and spare part related cost.
Development of the Ergonomic Wrist Posture Range for Indonesian in Typing Activity Using Electromyograph
Authors: Soewardi H , Zhafira N 
Published: July 2019

Abstract
Carpal Tunnel Syndrome (CTS) is one of the most common neuropathies which occurs due to repetitive activity of hand using non-neutral wrist posture whether in flexion, extension, or ulnar and radial. Even though this posture may be inevitable, however it should be confined in maximum range. Thus, this is very significant to develop the allowable of maximum deviation of wrist. Objective of this study is to determine the maximum range of wrist postures in such four motions with evaluating the muscle contraction at wrist. A case study applied is to type a manuscript using computer. Experimental study was conducted by using electromyograph to identify Maximum Voluntary Contraction (MVC) on Flexor Digitorum Superficialis (FDS) and Abductor Pollicis Brevis (APB). Ten healthy university students (5 females, 5 males) were participated with age between 20 to 23 years old. The statistical analysis was conducted to test the hypothesis. Result of this study shows that the suggested maximum wrist posture range is not greater than 30˚ extension, 20˚ flexion, 20˚ ulnar, and 20˚ radial, although the neutral posture of 0˚ was highly suggested. This guideline is proven to be valid for both male and female.
Template-free synthesis of Ta3N5 hollow nanospheres as a visible-light-driven photocatalyst
Authors: Wang Taifeng , Arakaki Atsushi , Kisailus David 
Published: July 2019

Abstract
Ultrathin mesoporous Ta3N5 hollow nanospheres were synthesized via a facile and orchestrated template-free solution-based synthesis followed by thermal nitridation. A systematic investigation of structural evolution with annealing revealed a progressive crystallization with concurrent development of mesoporosity and modification of chemical composition with nitridation time. Subsequent performance of as-prepared photocatalysts were evaluated by the degradation of methylene blue under visible light irradiation (λ > 400 nm). Ta3N5 hollow nanospheres exhibited higher photocatalytic activity than Ta3N5 nanorods or bulk Ta3N5, which can be attributed to their engineered structure as well as the oxygen and nitrogen content.
Associations Between Alcohol Policies and Adolescent Alcohol Use: A Pooled Analysis of GSHS and ESPAD Data
Authors: Noel Jonathan K 
Published: July 2019

Abstract

Aims
Alcohol-attributable harm remains high worldwide, and alcohol use among adolescents is particularly concerning. The purpose of this study is to determine the effect of national alcohol control policies on adolescent alcohol use in low-, middle- and high-income countries and improve on previous cross-national attempts to estimate the impact of alcohol policy on this population.

Methods
Data on adolescent (n = 277,110) alcohol consumption from 84 countries were pooled from the Global School-based Health Survey and the European School Survey Project on Alcohol and Other Drugs. Alcohol use measures included lifetime alcohol use, current (past 30 days) alcohol use and current (past 30 days) binge drinking. Information on national alcohol control policies was obtained from the World Health Organization’s Global Information System on Alcohol and Health and scored for effectiveness. Main effects were estimated using two-level, random intercept hierarchical linear models, and the models were adjusted for sex and age of the participants, and pattern of drinking score, gross domestic product based on purchasing power parity and study at the country level.

Results
Availability (OR [95% CI] = 0.991 [0.983, 0.999]), marketing (OR [95% CI] = 0.994 [0.988, 1.000]) and pricing (OR [95% CI] = 0.955 [0.918, 0.993]) policies were inversely associated with lifetime drinking status. Pricing policies were also inversely associated with current binge drinking status among current drinkers (OR [95% CI] = 0.939 [0.894, 0.986]). There were no associations between the included alcohol policies and current drinking status.

Conclusions
Strong availability, marketing and pricing policies can significantly and practically impact adolescent alcohol consumption.
Evolution of increased vigour associated with allopolyploidization in the newly formed invasive species Salsola ryanii
Authors: Welles Shana R , Ellstrand Norman C 
Published: July 2019

AbstractA correlation between allopolyploidization and increased fitness is an explanation for the importance of allopolyploidy throughout evolution, specifically plant evolution. Although many authors have suggested correlation between allopolyploidy and increased fitness, common garden comparisons testing hypotheses about fitness shifts associated with allopolyploidy are lacking. In this study, we test the theory that allopolyploidy is associated with increased fitness in the newly formed allopolyploid weed Salsola ryanii. We conducted a common garden comparison over 2 years to determine how different fitness correlates (plant volume, plant mass and estimated seed number) of the newly formed allopolyploid species S. ryanii compares to its progenitors (S. tragus and S. australis) at a site within the range of all the newly formed allopolyploid and both of its progenitors. We document an increase in above-ground plant mass and above-ground volume in the newly formed allopolyploid compared to its progenitors. Plant mass and volume of the newly formed allopolyploid relative to its progenitors was dependent on year. The results of this study support the hypothesis that allopolyploidization is associated with increased growth, which is consistent with predictions that allopolyploid lineages experience vigour due to fixed heterozygosity.
Winter corticosterone and body condition predict breeding investment in a nonmigratory bird
Authors: Montreuil-Spencer Chloé , Schoenemann Kelsey , Lendvai Ádám Z , Bonier Frances 
Published: July 2019

AbstractReproduction is an energetically demanding life history stage that requires costly physiological and behavioral changes, yet some individuals will invest more into reproduction and breed more successfully than others. To understand variation in reproductive investment, previous studies have evaluated factors during breeding, but conditions outside of this life history stage may also play a role. Using a free-ranging population of black-capped chickadees (Poecile atricapillus), we assessed the repeatability of plastic traits relating to energetic condition (circulating initial corticosterone concentrations and body condition) during the nonbreeding season and evaluated whether these traits predicted reproductive investment in the subsequent breeding season. We found that initial corticosterone concentrations and an index of body condition, but not fat score, were moderately repeatable over a 1-week period in winter. This trait repeatability supports the interpretation that among-individual variation in these phenotypic traits could reflect an intrinsic strategy to cope with challenging conditions across life history stages. We found that females with larger fat reserves during winter laid eggs sooner and tended to spend more time incubating their eggs and feeding their offspring. In contrast, we found that females with higher residual body mass delayed breeding, after controlling for the relationship between fat score and timing of breeding. Additionally, females with higher initial corticosterone in winter laid lighter eggs. Our findings suggest that conditions experienced outside of the breeding season may be important factors explaining variation in reproductive investment.
Snapchat’s Dialectics of Socialization: Revisiting the Theory of the Spectacle for a Critical Political Economy of Social Media
Authors: Briziarelli Marco 
Published: July 2019

AbstractIn this paper, I use the online app Snapchat as a prism through which I illustrate a “spectacular” power of current informational/communicative capitalism: the ability to subsume and integrate a broad range of practices into a holistic socialization process that operates both at the level of media platform structures and at the level of subjectivization mechanisms. I advance this argument by historicizing Guy Debord’s notion of the Spectacle via Autonomist Marxism and Voloshinov’s materialist semiotics. Shedding light on the tensions inhabiting the post-Fordist labor process its users are involved in—such as autonomy/heteronomy, sociability/alienation, and display/concealment—I show how Snapchat points to a Spectacle that consistently operates through a dialectic of socialization, which enables and compels, consorts and estranges, and deceives and exhibits.
The Clinical Picture and Severity of Invasive Meningococcal Disease Serogroup W Compared With Other Serogroups in the Netherlands, 2015–2018
Authors: Loenenbach Anna D , van der Ende Arie , de Melker Hester E , Sanders Elisabeth A M , Knol Mirjam J 
Published: July 2019

Abstract

Background
An increase in invasive meningococcal disease (IMD) serogroup W (IMD-W) cases caused by sequence type-11 clonal complex (cc11) was observed from October 2015 in the Netherlands. We compared the clinical picture and disease outcome of IMD-W cases with other serogroups, adjusting for host characteristics.

Methods
We included IMD cases reported from January 2015 to June 2018 in the Netherlands and assessed clinical manifestation and symptoms at disease onset and calculated case fatality rates (CFRs). We used logistic regression to compare clinical manifestations and mortality of IMD-W with IMD caused by meningococci serogroup B, Y, or C, adjusting for age, gender, and comorbidities.

Results
A total of 565 IMD cases were reported, of which 204 were IMD-W, 270 IMD-B, 63 IMD-Y, and 26 IMD-C. Most IMD-W isolates belonged to cc11 (93%; 175/188). Compared with other serogroups, IMD-W patients were diagnosed more often with septicemia (46%) or pneumonia (12%) and less often with meningitis (17%, P &lt; .001). IMD-W cases presented more often with respiratory symptoms (45%, P &lt; .001); 16% of IMD-W patients presented with diarrhea without IMD-specific symptoms (P = .061). The CFR for IMD-W was 16% (32/199, P &lt; .001). The differences between IMD-W and other serogroups remained after adjusting for age, gender, and comorbidities.

Conclusions
The atypical presentation and severe outcome among IMD-W cases could not be explained by age, gender, and comorbidities. Almost all our IMD-W cases were caused by cc11. More research is needed to identify the bacterial factors involved in clinical presentation and severity of IMD-W cc11.
Labour market deregulation, taxation and labour productivity in a Marxian–Kaldorian perspective: the case of Italy
Authors: Forges Davanzati Guglielmo , Giangrande Nicolò 
Published: July 2019

AbstractThis paper deals with the Italian recession in a theoretical framework which combines Marxian and Kaldorian elements. The interpretation proposed of the slow rate of growth of the Italian economy in the last decades is based on the view that the implementation of a liberal agenda (mainly in the form of increasing labour market deregulation and increasing taxation on labour) has generated increasing income inequality and the reduction of the growth rate. The basic idea, derived from Kaldor, is that the decline of labour share, the increasing precariousness and measures of fiscal consolidation have reduced domestic demand with negative effects on the level of employment and the growth of labour productivity. Moreover, the increase in public debt involves increasing taxation (mainly on labour), which, in turn, contributes to the reduction of the rate of growth of labour productivity via the deterioration of the quality of the workforce.
Reinterventions after freestyle stentless aortic valve replacement: an assessment of procedural risks
Authors: Schneider Adriaan W , Hazekamp Mark G , Versteegh Michel I M , de Weger Arend , Holman Eduard R , Klautz Robert J M , Bruggemans Eline F , Braun Jerry 
Published: July 2019

Abstract

OBJECTIVES
Repeat aortic valve interventions after previous stentless aortic valve replacement (AVR) are considered technically challenging with an increased perioperative risk, especially after full-root replacement. We analysed our experience with reinterventions after stentless AVR.

METHODS
A total of 75 patients with previous AVR using a Freestyle stentless bioprosthesis (31 subcoronary, 15 root-inclusion and 29 full-root replacement) underwent reintervention in our centre from 1993 until December 2018. Periprocedural data were retrospectively collected from the department database and follow-up data were prospectively collected.

RESULTS
Median age was 62 years (interquartile range 47–72 years). Indications for reintervention were structural valve deterioration (SVD) in 47, non-SVD in 13 and endocarditis in 15 patients. Urgent surgery was required in 24 (32%) patients. Reinterventions were surgical AVR in 16 (21%), root replacement in 51 (68%) and transcatheter AVR in 8 (11%) patients. Early mortality was 9.3% (n = 7), but decreased to zero in the past decade in 28 patients undergoing elective reoperation. Per indication, early mortality was 9% for SVD, 8% for non-SVD and 13% for endocarditis. Aortic root replacement had the lowest early mortality rate (6%), followed by surgical AVR (13%) and transcatheter AVR (25%, 2 patients with coronary artery obstruction). Pacemaker implantation rate was 7%. Overall survival rate at 10 years was 69% (95% confidence interval 53–81%).

CONCLUSIONS
Repeat aortic valve interventions after stentless AVR carry an increased, but acceptable, early mortality risk. Transcatheter valve-in-valve procedures after stentless AVR require careful consideration of prosthesis leaflet position to prevent obstruction of the coronary arteries.
Academic salaries and public evaluation of university research: Evidence from the UK Research Excellence Framework
Authors: De Fraja Gianni , Facchini Giovanni , Gathergood John 
Published: July 2019

SUMMARY
We study the effects of public evaluation of university research on the pay structures of academic departments. A simple equilibrium model of university pay determination shows how the pay–performance relationship can be explained by the incentives inherent in the research evaluation process. We then analyse the pay–performance relationship using data on the salary of all UK university full professors, matched to the performance of their departments from the 2014 UK government evaluation of research, the Research Excellence Framework (REF). A cross sectional empirical analysis shows that both average pay level and pay inequality in a department are positively related to performance. It also shows that the pay–performance relationship is driven by a feature of the research evaluation that allows academics to transfer the affiliation of published research across universities. To assess the effect of the REF on pay structure, we take advantage of the time dimension of our data and of inherent uncertainty in the evaluation of the performance of academic departments generated by the rules of the exercise. Our results indicate that higher achieving departments benefit from increased subsequent hiring and higher professorial salaries with the salary benefits of REF performance concentrated among the highest paid professors.
Atrial high-rate episodes: prevalence, stroke risk, implications for management, and clinical gaps in evidence
Authors: Bertaglia Emanuele , Blank Benjamin , Blomström-Lundqvist Carina , Brandes Axel , Cabanelas Nuno , Dan G -Andrei , Dichtl Wolfgang , Goette Andreas , de Groot Joris R , Lubinski Andrzej , Marijon Eloi , Merkely Béla , Mont Lluis , Piorkowski Christopher , Sarkozy Andrea , Sulke Neil , Vardas Panos , Velchev Vasil , Wichterle Dan , Kirchhof Paulus 
Published: July 2019

Abstract
Self-terminating atrial arrhythmias are commonly detected on continuous rhythm monitoring, e.g. by pacemakers or defibrillators. It is unclear whether the presence of these arrhythmias has therapeutic consequences. We sought to summarize evidence on the prevalence of atrial high-rate episodes (AHREs) and their impact on risk of stroke. We performed a comprehensive, tabulated review of published literature on the prevalence of AHRE. In patients with AHRE, but without atrial fibrillation (AF), we reviewed the stroke risk and the potential risk/benefit of oral anticoagulation. Atrial high-rate episodes are found in 10–30% of AF-free patients. Presence of AHRE slightly increases stroke risk (0.8% to 1%/year) compared with patients without AHRE. Atrial high-rate episode of longer duration (e.g. those >24 h) could be associated with a higher stroke risk. Oral anticoagulation has the potential to reduce stroke risk in patients with AHRE but is associated with a rate of major bleeding of 2%/year. Oral anticoagulation is not effective in patients with heart failure or survivors of a stroke without AF. It remains unclear whether anticoagulation is effective and safe in patients with AHRE. Atrial high-rate episodes are common and confer a slight increase in stroke risk. There is true equipoise on the best way to reduce stroke risk in patients with AHRE. Two ongoing trials (NOAH-AFNET 6 and ARTESiA) will provide much-needed information on the effectiveness and safety of oral anticoagulation using non-vitamin K antagonist oral anticoagulants in patients with AHRE.
Effect of ancient grains and grain-free carbohydrate sources on extrusion parameters and nutrient utilization by dogs
Authors: Pezzali Julia Guazzelli , Aldrich Charles Gregory 
Published: July 2019

Abstract
The aim of this study was to evaluate the impact of ancient grain and grain-free carbohydrate sources on extrusion process, nutrient utilization, and palatability by dogs. Two maintenance dog diets were formulated with same proportions of carbohydrates: 1) ancient grain diet (AG) with spelt, millet, and sorghum; and 2) grain-free diet (GF) which had potato, peas, and tapioca starch. Experimental diets were extruded over 5 replicates in a completely randomized experimental design. Digestibility was carried out with 12 dogs in a switch-back experimental design. The GF diet required 22.6 and 25.9% more (P < 0.05) specific mechanical energy and in-barrel moisture input, respectively, than AG to produce kibbles out of the extruder with similar bulk density (P > 0.05). After drying, GF kibbles were less dense and more expanded, but harder than AG kibbles (P < 0.05). Dogs preferred GF over AG in the palatability assessment of uncoated kibbles. Apparent nutrient digestibility of dry matter, organic matter, gross energy, crude protein, and crude fat were not affected by treatment (P > 0.05). However, total dietary fiber (TDF) digestibility was 31.9% greater for dogs fed GF (P < 0.05). Moreover, wet fecal output was higher, and fecal dry matter was lower for dogs under GF (P < 0.05). The results demonstrated that GF and AG diets behaved differently during extrusion, but were similarly utilized by dogs, with exception of TDF. Thus, fiber content of grain-free diets should be monitored to maximize fecal quality.
Bupenorphine in Wisconsin Drivers: Concerns for Impairment?
Authors: Edwards Lorrine D 
Published: July 2019

Abstract
Opinions vary on whether buprenorphine can cause impairment in drivers. Relatively little information on the observed effects of buprenorphine, outside a laboratory or a controlled driving course, exist in the literature. The Wisconsin State Laboratory of Hygiene monitored the detection of buprenorphine and its pharmacologically active metabolite, norbuprenorphine (NBUP), in Wisconsin drivers over a 2-year period. A total of 204 individuals (78 females and 126 males) were driving under the influence of buprenorphine and/or NBUP. Concentrations in whole blood (ng/mL) ranged (mean) from 0.6 to 14 (2.0) and 0.5 to 20 (2.1) for buprenorphine and NBUP, respectively. Poly-substance use is extremely prevalent in Wisconsin operating while intoxicated casework, so prevalent that only four of the previously described cases had buprenorphine and/or NBUP as the only drug(s) detected. This paper summarizes and highlights the case histories and observed impairments of those four cases. Law enforcement (LE) made contact with three of the four subjects due to either a crash or poor/reckless driving. Police reports and observations made by LE, including drug recognition expert (DRE) evaluations, were collected. Physical and behavioral observations made by LE varied and included a combination of narcotic analgesic, central nervous system depressant- and stimulant-like effects. Impaired balance and lack of coordination during the administration of the Standardized Field Sobriety Tests were documented by the arresting officers and/or the DRE. While the number of buprenorphine-only cases reported here is limited, the results demonstrate the complex paradigm associated with forensic interpretation of buprenorphine in driving under the influence of drugs casework and the frequency of poly-substance administration in Wisconsin drivers.