bluuebunny/crossref_metadata_2025_split huggingface dataset:
A meta‐analysis of agglomeration and venture performance: Firm‐level evidence
Authors: Mathias Blake D. , McCann Brian T. , Whitman Daniel S. 
Published: December 2020

AbstractResearch summaryAgglomeration theory has long explored and asserted that similar firms locate in close geographic proximity for performance‐related benefits. However, no study has systematically assessed the literature to determine whether the relationship between agglomeration and firm performance holds. Through a meta‐analysis of 42 studies and nearly 200,000 firm‐level observations, our study estimates the relationship between agglomeration and performance, showing the importance of knowledge spillovers in this relationship. Specifically, we find although agglomeration confers innovation benefits, it does not consistently offer financial performance benefits. We also highlight several important conditions, including firm age, industry technology intensity, and economic development level that impact the agglomeration–performance relationship. Together, our work advances agglomeration theory by suggesting when, and to what extent, agglomeration holds the most promise for organizations.Managerial summaryAll firms must address a fundamental question before launching their firms—where to locate? Existing thought largely suggests that locating near similar firms offers certain advantages, such as reducing search costs for skilled employees or gaining access to knowledge spillovers. By examining the body of literature on this topic, our study analyzes the collective evidence of the performance benefits of co‐location. We find that co‐location generally enhances firm innovation, but we discover it fails to increase firm financial performance, on average. And, in some cases, co‐location is detrimental to financial performance. Ultimately, we offer a variety of contingencies that help explain when co‐locating might be advantageous or disadvantageous to firms, thereby providing firm leaders and entrepreneurs with clear guidance on when (and when not) to co‐locate.
Long noncoding RNA DUXAP10 promotes the stemness of glioma cells by recruiting HuR to enhance Sox12 mRNA stability
Authors: Wu Bolin , Yang Chengyou , Fang Yuefeng , Ding Weilong , Zhang Yuqing 
Published: December 2020

AbstractLong noncoding RNA (lncRNA) DUXAP10 has been shown to act as an oncogene in various tumors; however, its roles in glioma progression have never been established. Here, we show that DUXAP10 is overexpressed in glioma tissues and cells. Loss of function experiments reveal that DUXAP10 knockdown has little effects on glioma cell viability, but significantly reduces the stemness of glioma cells, which is characterized as the decrease of stemness marker expression, tumor sphere‐forming ability, and ALDH activity. RNA immunoprecipitation and immunofluorescence assays indicate that DUXAP10 can directly interact with HuR protein and suppress the cytoplasm‐nuclear translocation of HuR, which subsequently enhances Sox12 mRNA stability in cytoplasm and thus increases Sox12 expression. Further rescuing experiments show that the HuR/Sox12 axis is responsible for DUXAP10‐mediated effects on glioma cell stemness.
UoC‐4: A MOF Based on Octahedral ScO6 Nodes and Fluorinated Trimesate Ligands
Authors: Mattick Tim , Smets Daniel , Christoffels Ronja , Körtgen Lisa , Tobeck Christian , Ruschewitz Uwe 
Published: December 2020

AbstractA new MOF (metal‐organic framework),
[Sc(dF‐BTC)6/6]⋅solvent with dF‐BTC3−=2,4‐difluoro‐1,3,5‐benzene‐tricarboxylate, termed UoC‐4 (UoC≡University of Cologne), was synthesized by solvothermal reaction in an ethanol/water solvent mixture. The crystal structure of UoC‐4 was solved and refined from X‐ray single crystal data (I41/amd, Z=8). In the crystal structure each of the three carboxylate groups of the dF‐BTC3− linker coordinates to two Sc3+ cations, resulting in an almost ideal ScO6 octahedron. The connectivity of these ScO6 and dF‐BTC3− building units leads to a 3D framework structure with a new unprecedented topology. Small voids with a diameter of <5 Å are formed, in which most likely disordered ethanol molecules reside. UoC‐4 is stable against moisture, but in water a slow hydrolysis occurs. Thermal decomposition in an inert atmosphere starts above 400 °C. Activation of the material failed so that no gas sorption isotherm with N2 as test gas could be recorded. The small pores within UoC‐4 are obviously not accessible for gases like N2 due to very small opening windows.
Effect of temperature‐dependent and internal heat source on a micropolar thermoelastic medium with voids under 3PHL model
Authors: Alharbi Amnah M. , Abd‐Elaziz Elsayed M. , Othman Mohamed I. A. 
Published: December 2020

AbstractThe goal of the paper is to present the study of the effect of an internal heat source and the dependence of temperature on a micropolar voided medium that is thermoelastic in the theory of the three‐phase‐lag model of thermoelasticity. The governing equations are formulated and then the exact displacement component expressions, temperature field, microrotation components, the components of stress and volume fraction field change are found with the normal mode technique. The obtained results for thermal variations were validated by comparing to the three‐phase‐lag model (3PHL) and the Green and Naghdi of type III theory (G‐N III). The comparisons are shown graphically to explore the effects of the internal heat source and void parameters as well as temperature dependent. Other subjects of interest received their own deductions from this investigation.
Six out of ten patients with sinus tarsi syndrome returned to pre-injury type of sport after subtalar arthroscopy
Authors: Lauf Kenny , Dahmen Jari , Altink J. Nienke , Stufkens Sjoerd A. S. , Kerkhoffs Gino M. M. J. 
Published: December 2020

Abstract
Purpose
The purpose of this study was to determine multiple return to sport rates, long-term clinical outcomes and safety for subtalar arthroscopy for sinus tarsi syndrome.

Methods
Subtalar arthroscopies performed for sinus tarsi syndrome between 2013 and 2018 were analyzed. Twenty-two patients were assessed (median age: 28 (IQR 20–40), median follow-up 60 months (IQR 42–76). All patients were active in sports prior to the injury. The primary outcome was the return to pre-injury type of sport rate. Secondary outcomes were time and rate of return to any type of sports, return to performance and to improved performance. Clinical outcomes consisted of Numerous Rating Scale of pain, Foot and Ankle Outcome Score, 36-item Short Form Survey and complications and re-operations.

Results
Fifty-five percent of the patients returned to their preoperative type of sport at a median time of 23 weeks post-operatively (IQR 9.0–49), 95% of the patients returned to any type and level sport at a median time of 12 weeks post-operatively (IQR 4.0–39), 18% returned to their preoperative performance level at a median time of 25 weeks post-operatively (IQR 8.0–46) and 5% returned to improved performance postoperatively at 28 weeks postoperatively (one patient). Median NRS in rest was 1.0 (IQR 0.0–4.0), 2.0 during walking (IQR 0.0–5.3) during walking, 3.0 during running (IQR 1.0–8.0) and 2.0 during stair-climbing (IQR 0.0–4.5). The summarized FAOS score was 62 (IQR 50–90). The median SF-36 PCSS and the MCSS were 46 (IQR 41–54) and 55 (IQR 49–58), respectively. No complications and one re-do subtalar arthroscopy were reported.

Conclusion
Six out of ten patients with sinus tarsi syndrome returned to their pre-injury type of sport after being treated with a subtalar arthroscopy. Subtalar arthroscopy yields effective outcomes at long-term follow-up concerning patient-reported outcome measures in athletic population, with favorable return to sport level, return to sport time, clinical outcomes and safety outcome measures.

Level of evidence
IV.
Radiomics for prediction of survival in lower-grade gliomas—it’s time to move beyond the crystal ball
Authors: Pinto dos Santos Daniel , Garcia Santos José Maria 
Published: December 2020

Key Points• Radiomics might help predict survival of patients with lower-grade gliomas.• Several different models using different radiomics features have been proposed with only little overlap in included features.• Prospective trials and validation studies are needed to establish which models offer clinical benefit and which do not.
Monetary incentives have only limited effects on auditory distraction: evidence for the automaticity of cross-modal attention capture
Authors: Bell Raoul , Mieth Laura , Buchner Axel , Röer Jan Philipp 
Published: December 2020

AbstractThe duplex-mechanism account of auditory distraction postulates that two distinct forms of auditory distraction can be distinguished by whether or not they can be cognitively controlled. While the interference-by-process component of auditory distraction is postulated to be automatic and independent of cognitive control, the stimulus-aspecific attention capture by auditory deviants and the stimulus-specific attentional diversion by auditorily presented distractor sentences should be suppressed by increased task engagement. Here we test whether incentive-induced changes in task engagement affect the disruption of serial recall by auditory deviants (Experiment 1) and distractor sentences (Experiment 2). Monetary incentives substantially affected recall performance in both experiments. However, the incentive-induced changes in task engagement had only limited effects on auditory distraction. In Experiment 2, increased task engagement was associated with a small decrease of distraction relative to a quiet condition, but strong effects of auditory distraction on performance persisted in conditions of high task engagement in both experiments. Most importantly, and in contrast to the predictions of the duplex-mechanism account, the effects of stimulus-aspecific attention capture (Experiment 1) and stimulus-specific attentional diversion (Experiment 2) remained unaffected by incentive-induced changes in task engagement. These findings are consistent with an automatic-capture account according to which only the processes responsible for the deliberate memorization of the target items are dependent on controlled mental effort while the attention capture by auditory deviants and the attentional diversion by distractor speech are largely automatic.
Autism spectrum disorder and kidney disease
Authors: Clothier Joanna , Absoud Michael 
Published: December 2020

AbstractNeurodevelopmental impairments have been recognised as a major association of paediatric kidney disease and bladder dysfunction, presenting challenges to clinicians and families to provide reasonable adjustments in order to allow access to investigations and treatments. Autism spectrum disorder (ASD) is a common neurodevelopmental disorder characterised by impairments in social interaction/communication and repetitive sensory-motor behaviours. Mental health, learning and physical co-morbidities are common. There is emerging evidence that ASD and kidney disease have some overlaps with genetic copy number variants and environmental factors contributing to shared pathogenesis. Prevalence rates of ASD in kidney disease are currently not known. A high index of suspicion of underlying ASD is required when a young person presents with communication difficulties, anxiety or behaviour that challenges, which should then trigger referral for a neurodevelopmental and behavioural assessment. We discuss practical approaches for providing care, which include understanding methods of communication and sensory, behavioural and environmental adaptations.
Temporal effects of barbiturate coma on intracranial pressure and compensatory reserve in children with traumatic brain injury
Authors: Velle Fartein , Lewén Anders , Howells Timothy , Nilsson Pelle , Enblad Per 
Published: December 2020

Abstract
Background
The aim was to study the effects of barbiturate coma treatment (BCT) on intracranial pressure (ICP) and intracranial compensatory reserve (RAP index) in children (< 17 years of age) with traumatic brain injury (TBI) and refractory intracranial hypertension (RICH).

Methods
High-resolution monitoring data were used to study the effects of BCT on ICP, mean arterial pressure (MAP), cerebral perfusion pressure (CPP), and RAP index. Four half hour long periods were studied: before bolus injection and at 5, 10, and 24 hours thereafter, respectively, and a fifth tapering period with S-thiopental between < 100 and < 30 μmol/L. S-thiopental concentrations and administered doses were registered.

Results
Seventeen children treated with BCT 2007–2017 with high-resolution data were included; median age 15 (range 6–17) and median Glasgow coma score 7 (range 3–8). Median time from trauma to start of BCT was 44.5 h (range 2.5–197.5) and from start to stop 99.0 h (range 21.0–329.0). Median ICP was 22 (IQR 20–25) in the half hour period before onset of BCT and 16 (IQR 11–20) in the half hour period 5 h later (p = 0.011). The corresponding figures for CPP were 65 (IQR 62–71) and 63 (57–71) (p > 0.05). The RAP index was in the half hour period before onset of BCT 0.6 (IQR 0.1–0.7), in the half hour period 5 h later 0.3 (IQR 0.1–0.7) (p = 0.331), and in the whole BCT period 0.3 (IQR 0.2–0.4) (p = 0.004). Eighty-two percent (14/17) had favorable outcome (good recovery = 8 patients and moderate disability = 6 patients).

Conclusion
BCT significantly reduced ICP and RAP index with preserved CPP. BCT should be considered in case of RICH.
Oral sentence generation training to improve fifth and 10th graders’ writing
Authors: Arfé Barbara , Festa Federica , Ronconi Lucia , Spicciarelli Gaia 
Published: December 2020

AbstractText generation—the mental translation of ideas into language at word, sentence, and discourse levels—involves oral language abilities. However, oral language skills are rarely a target of writing interventions. We ran an intervention to improve fifth and 10th graders’ written production through the development of oral sentence generation (grammatical and syntactic) skills. One hundred and fifteen students—68 fifth graders (four classrooms) and 47 tenth graders (four classrooms)—participated in a stepped-wedge cluster-randomized controlled trial. Two fifth-grade classrooms (n = 35) and two 10th-grade classrooms (n = 20) received nine 90-min sessions (3 weeks, three sessions a week) of oral language intervention immediately after the pretest (experimental groups); the two other fifth- (n = 33) and 10th-grade classrooms (n = 27) received business-as-usual writing instruction and received a delayed oral language intervention after the posttest (waiting list group). The intervention consisted of team-based games to improve oral sentence generation and sentence reformulation skills. We assessed written sentence generation, written sentence reformulation, written text quality (macrostructure and language), and text writing fluency before (pretest) and after (posttest) the intervention and 5 weeks after the intervention (follow-up). The results showed that training on oral sentence generation skills can lead to significant gains in both sentence generation and sentence reformulation skills and text macrostructural quality. Improvement at the sentence level was, however, significant only for the younger writers (fifth graders).
Comparison of measured residential black carbon levels outdoors and indoors with fixed-site monitoring data and with dispersion modelling
Authors: Gruzieva Olena , Georgelis Antonios , Andersson Niklas , Bellander Tom , Johansson Christer , Merritt Anne-Sophie 
Published: December 2020

AbstractEpidemiologic studies on health effects of air pollution usually rely on time-series of ambient monitoring data or on spatially modelled levels. Little is known how well these estimate residential outdoor and indoor levels. We investigated the agreement of measured residential black carbon (BC) levels outdoors and indoors with fixed-site monitoring data and with levels calculated using a Gaussian dispersion model. One-week residential outdoor and indoor BC measurements were conducted for 15 families living in central Stockholm. Time-series from urban background and street-level monitors were compared to these measurements. The observed weekly concentrations were also standardized to reflect annual averages, using urban background levels, and compared spatially to long-term levels as estimated by dispersion modelling. Weekly average outdoor BC level was 472 ng/m3(range 261–797 ng/m3). The corresponding fixed-site urban background and street levels were 313 and 1039 ng/m3, respectively. Urban background variation explained 50% of the temporal variation in residential outdoor levels averaged over 24 h. Modelled residential long-term outdoor levels were on average comparable with the standardized measured home outdoor levels, and explained 49% of the spatial variability. The median indoor/outdoor ratio across all addresses was 0.79, with no difference between day and night time. Common exposure estimation approaches in the epidemiology of health effects related to BC displayed high validity for residencies in central Stockholm. Urban background monitored levels explained half of the outdoor day-to-day variability at residential addresses. Long-term dispersion modelling explained half of the spatial differences in outdoor levels. Indoor BC concentrations tended to be somewhat lower than outdoor levels.
Basic mental models of integrals: theoretical conception, development of a test instrument, and first results
Authors: Greefrath Gilbert , Oldenburg Reinhard , Siller Hans-Stefan , Ulm Volker , Weigand Hans-Georg 
Published: December 2020

AbstractA basic mental model (BMM—in German ‘Grundvorstellung’) of a mathematical concept is a content-related interpretation that gives meaning to this concept. This paper defines normative and individual BMMs and concretizes them using the integral as an example. Four BMMs are developed about the concept of definite integral, sometimes used in specific teaching approaches: the BMMs of area, reconstruction, average, and accumulation. Based on theoretical work, in this paper we ask how these BMMs could be identified empirically. A test instrument was developed, piloted, validated and applied with 428 students in first-year mathematics courses. The test results show that the four normative BMMs of the integral can be detected and separated empirically. Moreover, the results allow a comparison of the existing individual BMMs and the requested normative BMMs. Consequences for future developments are discussed.
Is There a Global Carbonate Layer in the Oceanic Mantle?
Authors: Hammouda T. , Manthilake G. , Goncalves P. , Chantel J. , Guignard J. , Crichton W. , Gaillard F. 
Published: December 2020

AbstractPrevious modeling of carbonate subduction by high‐pressure experimentation has allowed to propose scenarios for bulk carbon return to the mantle, but the detailed transfer mechanisms have seldom been studied. We monitored carbonate–silicate reactions by combining high‐pressure experiments and synchrotron‐based X‐ray diffraction. Carbonates break down at moderate pressure and high temperature and CO2 is trapped at grain boundaries. Further isothermal compression yields melting, which may control continuous carbon introduction, first in the mantle wedge, and next, away from the wedge. Carbon presence has been discussed in a variety of magmatic contexts, under the oceanic lithosphere (hotspots, petit spots, and fossil ridges). We suggest the presence of a global carbon‐rich layer under the oceanic lithosphere that is steadily fed by subduction processes. This layer can be the source of mechanical weakening of the lithosphere–asthenosphere boundary under the oceans. Therefore, carbon‐induced compression melting may be a key mechanism of modern‐style plate tectonics.
Diffusion Creep of Diopside
Authors: Ghosh S. , Koizumi S. , Hiraga T. 
Published: December 2020

AbstractWe have conducted uniaxial compression experiments on fine‐grained diopside with either 4 or 10 vol% forsterite and 10 vol% anorthite. We changed the average grain size in the diopside with forsterite aggregate from 0.43 to 4.07 μm to reveal the grain size sensitivity of the creep rate. Mechanical data were obtained at a stepped load for a temperature range of 1050°C–1170°C. The observed strain rates are best explained by stress and grain size exponent values of 1 and 2, respectively, and activation energy of ∼720 kJ/mol, which indicates lattice diffusion creep. Anorthite bearing aggregate is ∼3 times weaker than forsterite‐bearing aggregate, probably due to the presence of aluminum. We have compared previously reported diffusion creep rates of diopside in nondimensional stress and strain‐rate space, constructed based on our diffusion creep law. It demonstrates that all the earlier mechanical data are well summarized by our diffusion creep flow law.
An improved control technique for designing of composite non‐linear feedback control in constrained time‐delay systems
Authors: Ghaffari Valiollah 
Published: December 2020

AbstractIn this research, a novel delay‐dependent composite non‐linear feedback (CNF) control would be pointed for non‐linear time‐delay systems under actuator saturation. For this aim, first, the CNF controller would be formulated in the constrained time‐delay systems. Then, a linear matrix inequality (LMI) approach is presented to obtain the controller parameters. Hence, the control synthesis of the constrained non‐linear time‐delay systems is transformed into an optimisation problem subjected to some LMIs. The suggested controller is simulated in some numerical examples like a chemical reactor with separator and recycle. The computed quantitative results will demonstrate the capability of the proposed CNF control approach compared to other best methods.
Necessary and sufficient conditions for stabilisability of discrete‐time time‐varying switched systems
Authors: Lu Junjie , She Zhikun , Liao Fucheng 
Published: December 2020

AbstractThis paper is concerned with necessary and sufficient conditions for stabilisability of time‐varying discrete‐time switched systems. Starting with an asymptotically stable function, an exponentially stable function and a uniformly exponentially stable function, we successively propose necessary and sufficient conditions for asymptotic stabilisability, exponential stabilisability and uniform exponential stabilisability of time‐varying switched linear systems. Further, considering the broad applications of finite‐time stability in practical systems, based on an additionally introduced concept of finite‐time stable functions, we derive a necessary and sufficient condition for finite‐time stabilisability of time‐varying switched linear systems. Afterwards, three illustrative examples are given to show the applicability of our theoretical results. In the end, we further discuss the necessary and sufficient conditions for global exponential stabilisability and global uniform exponential stabilisability of time‐varying switched non‐linear systems. Compared to traditional difference Lyapunov inequalities, we release the requirement on negative definiteness of the time‐difference of Lyapunov functions.
Stability of impulsive switched systems with sampled‐data control
Authors: Lian Jie , Li Chunyang , Zhai Guisheng 
Published: December 2020

AbstractThis paper investigates the sampled‐data control of impulsive switched systems with asynchronous switching. The impulses are not required to synchronise the switching. Since it is possible that switches may occur in sampling intervals, the mismatched problem may happen between controllers and system modes. Aiming for this, a functional consisting of multiple impulse‐dependent Lyapunov functions and looped functionals is constructed, which does not increase at impulsive times. By using ADT method, some sufficient conditions for exponential stability are proposed in terms of linear matrix inequalities. Furthermore, sampled‐data controllers are presented to stabilise the impulsive switched systems. The efficiency of the proposed results is verified by an F‐18 aircraft.