bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of semi‐analytical model for rigid projectile penetration into concrete/metal targets
Authors: Dashtian Gerami Nasser , Khazraiyan Najmeh 
Published: August 2019

AbstractThe main objective of this research is to evaluate a proposed semi‐analytical model for penetration process of rigid projectile in concrete and concrete/metal targets using experimental and numerical methods. In theoretical analysis of this study, the dynamics cavity expansion theory and the wave reflection time in the form of tensile in concrete slab are used. The effect of the friction coefficient is also investigated during the penetration process. The equations are then generalized for two‐layered targets made out of concrete and steel. A series of penetration tests and numerical simulations in LS‐DYNA software are conducted to evaluate the proposed model. The main obtained parameters are residual velocity, penetration depth, and ballistic limit velocity. The analytical results are compared with experimental and numerical data. These results are in agreement with each other.
Introduction of a mineral powder as a type of natural cementitious material in concrete: An experimental program
Authors: Fazilati Mehdey , Golafshani Emadaldin M. 
Published: August 2019

AbstractThe principal air pollution within the concrete enterprise is cement in charge of roughly 5–7% of manufactured CO2 emissions. For reducing CO2 emissions and improving concrete properties, new types of natural cementitious materials have been served in concrete throughout the last two decades. In this study, a mineral powder (MP) as a type of supplementary cementitious material has been introduced and the chemical and physical properties of this MP and mechanical properties of the produced concrete were investigated. In this regard, the total number of 24 concrete mixes with 0 to 40% replacement of Portland cement (PC) with MP was designed. Concrete samples were tested for compressive, flexural, splitting tensile strengths, and elastic modulus at the age of 7, 28, 42, and 90 days. The experimental results indicate that the maximum compressive, flexural, and splitting tensile strengths are obtained by replacing about 5% PC with MP. Finally, the amount of CO2 emission reduction for concrete specimens containing MP was evaluated.
Boundary conditions for General Relativity in three-dimensional spacetimes, integrable systems and the KdV/mKdV hierarchies
Authors: Ojeda Emilio , Pérez Alfredo 
Published: August 2019

AbstractWe present a new set of boundary conditions for General Relativity on AdS3, where the dynamics of the boundary degrees of freedom are described by two independent left and right members of the Gardner hierarchy of integrable equations, also known as the “mixed KdV-mKdV” hierarchy. This integrable system has the very special property that simultaneously combines both, the Korteweg-de Vries (KdV) and modified Korteweg-de Vries (mKdV) hierarchies in a single integrable structure. This relationship between gravitation in three-dimensional spacetimes and two-dimensional integrable systems is based on an extension of the recently introduced “soft hairy boundary conditions” on AdS3, where the chemical potentials are now allowed to depend locally on the dynamical fields and their spatial derivatives. The complete integrable structure of the Gardner system, i.e., the phase space, the Poisson brackets and the infinite number of commuting conserved charges, are directly obtained from the asymptotic analysis and the conserved surface integrals in the gravitational theory. These boundary conditions have the particular property that they can also be interpreted as being defined in the near horizon region of spacetimes with event horizons. Black hole solutions are then naturally accommodated within our boundary conditions, and are described by static configurations associated to the corresponding member of the Gardner hierarchy. The thermodynamic properties of the black holes in the ensembles defined by our boundary conditions are also discussed. Finally, we show that our results can be naturally extended to the case of a vanishing cosmological constant, and the integrable system turns out to be precisely the same as in the case of AdS3.
A review of microsampling techniques and their social impact
Authors: Lei Benson U. W. , Prow Tarl W. 
Published: August 2019

AbstractConventional skin and blood sampling techniques for disease diagnosis, though effective, are often highly invasive and some even suffer from variations in analysis. With the improvements in molecular detection, the amount of starting sample quantity needed has significantly reduced in some diagnostic procedures, and this has led to an increased interest in microsampling techniques for disease biomarker detection. The miniaturization of sampling platforms driven by microsampling has the potential to shift disease diagnosis and monitoring closer to the point of care. The faster turnaround time for actionable results has improved patient care. The variations in sample quantification and analysis remain a challenge in the microsampling field. The future of microsampling looks promising. Emerging techniques are being clinically tested and monitored by regulatory bodies. This process is leading to safer and more reliable diagnostic platforms. This review discusses the advantages and disadvantages of current skin and blood microsampling techniques.
Lucidity in dementia: A perspective from the NIA
Authors: Eldadah Basil A. , Fazio Elena M. , McLinden Kristina A. 
Published: August 2019

AbstractIn this issue of Alzheimer's & Dementia, Mashour et al. propose the intriguing hypothesis that some manifestations of late‐stage dementia are reversible, albeit transiently. Calling this phenomenon paradoxical lucidity, their paper follows a 2018 workshop sponsored by the National Institute on Aging that assessed the state of knowledge on lucidity in dementia and identified areas ripe for further study. The National Institute on Aging has since released two funding opportunity announcements (RFA‐AG‐20‐016 and RFA‐AG‐20‐017) to establish the building blocks of such a research program. The potential challenges of conducting such studies are matched by the potential opportunities to open a novel window onto our understanding of dementia. Initial findings from this research may eventually lead to studies that uncover novel mechanisms underlying cognitive decline, identify potential preventive or therapeutic approaches for individuals with dementia, offer more effective strategies for caregivers, and perhaps even expand our understanding of the nature of personhood and consciousness.
Shaping and Re-shaping the Duty of Loyalty in Japanese Law
Authors: TAOKA Eriko 
Published: August 2019

AbstractThe duty of loyalty has been notoriously vague since its introduction into Japanese law. The vagueness of the duty becomes particularly problematic because although the duty overlaps with the duty of care, a breach of each of the duties is subject to different remedial rules. By focusing primarily on duties owed by a trustee and agent, this article attempts to re-define the duty of loyalty and clarify the conceptual relationship between the duties of loyalty and care in Japanese law. The article first explains the current complexity in the scope and nature of the duty of loyalty, and the relationship between the duties of loyalty and care in corporate, trust, and agency laws in Japan. Second, borrowing ideas from Lionel Smith's account of the fundamental nature of the fiduciary duty, this article attempts to re-shape the concept of the duty of loyalty while properly differentiating it from the duty of care in Japanese law.
Aligning taxes and spending: theory and experimental evidence
Authors: HEMEL DANIEL , PORTER ETHAN 
Published: August 2019

AbstractUnder what circumstances will members of the public hold positive attitudes toward new or higher taxes? While some scholars have posited that the practice of “earmarking” – designating tax revenues for a particular purpose – can increase support for taxes, the existing literature has not identified the conditions under which earmarking will prove effective in this regard. Here, we draw upon previous research on consumer behavior to hypothesize that support for earmarked taxes will be stronger when such taxes satisfy the criterion of “source–use alignment” (i.e., when the connection between the revenue source and the use for which those revenues are earmarked accords with familiar consumer fairness norms). Evidence in support of this hypothesis comes from two experiments on a sample of US residents matched to Census data, in which subjects were randomly assigned to read descriptions of hypothetical earmarked taxes with varying levels of alignment. Individuals consistently expressed stronger support for earmarked taxes that achieved source–use alignment as compared to earmarked taxes that did not satisfy the source–use alignment criterion. Our theory and results not only help to explain why some earmarked taxes are more popular than others, but also suggest a means for increasing public support for taxes.
Roughness effects in laminar channel flow
Authors: Liu Yanming , Li Jiahe , Smits Alexander J. 
Published: August 2019

The effects of roughness on the frictional drag and pressure drop in laminar channel flow are investigated numerically. The inflow is fully developed smooth wall flow, and square rib roughness, aligned normal to the bulk flow direction, is introduced as a step change. The roughness height and spacing are systematically varied, and the flow is examined as it develops over the rough wall and becomes fully developed. The length of the development region depends primarily on the roughness height, although the effects of spacing become more important as the height decreases. In the fully developed rough wall regime, the friction coefficients always increase with roughness when compared to the smooth wall case, but the increase depends crucially on the roughness height and to a lesser extent on the spacing. Using the constricted diameter in the definition of the friction factor collapses the data on the smooth wall value to within 10 % for all roughnesses studied here, with the remaining deviation increasing linearly with roughness spacing. The friction factors scale with the inverse of the Reynolds number, as seen elsewhere. The scaling of the development length and the friction coefficient can be explained by the relative contributions made by the pressure drop on each element and the skin friction acting over the surface area. These observations are examined in terms of the flow patterns in the vicinity of the roughness elements, which leads us to propose a definition for fully rough laminar flow.
Radiocarbon Characterization study of Atmospheric PM2.5 in Beijing during the 2014 APEC Summit
Authors: Pang Yijun , Yu Bo , He Ming , Jiang Shan , Zhao Qingzhang , Shen Hongtao , Wu Shaoyong , Yang Xuran , Wang Fangfang , Meng Qi , Zhang Yuxuan 
Published: August 2019

ABSTRACTRadiocarbon (14C) has become a unique and powerful tracer in source apportionment of atmospheric carbonaceous particles. In this study, the Asia Pacific Economic Cooperation summit (APEC) held in Beijing in 2014 was used as a demonstration to research the source apportionment of atmosphere PM2.5. We used a 200 kV single stage accelerator mass spectrometer recently completed at China Institute of Atomic Energy (CIAE). The PM2.5 samples related to above case were collected, and the characteristics of radiocarbon in organic carbon (OC) and elemental carbon (EC) in samples were analyzed using the AMS. The results show that the Before-APEC pollution emission mode is different from the During-APEC and After-APEC pollution emission modes. For Before-APEC, During-APEC and After-APEC, the average values of fossil carbon fraction of OC are 0.463, 0.431 and 0.615, respectively, and those of EC are 0.644, 0.561 and 0.687. The fossil source contributions of traffic activities using fossil fuels to OC and EC are 15.8 % and 21.9 %, respectively. The fossil source contributions of industrial activities to OC and EC are 38.0 % and 8.2 %, respectively. It is about 7–10 days that is needed to take to regenerate the PM2.5 pollution caused by human activities.
NORTHEAST PACIFIC SEAWATER RADIOCARBON RECORDED IN ABALONE SHELLS OBTAINED FROM OTSUCHI BAY, JAPAN
Authors: Ota Kosuke , Yokoyama Yusuke , Miyairi Yosuke , Hayakawa Jun , Satoh Naomi , Fukuda Hideki , Tanaka Kiyoshi 
Published: August 2019

ABSTRACTReconstructing past ocean currents in the coastal regions is necessary to better understand the relationship between oceanographic changes and coastal ecosystems. It is known that variations have occurred with large-scale climate changes such as ENSO (El Niño Southern Oscillations) and PDO (Pacific Decadal Oscillations). Thus, reconstruction of past seawater conditions in coastal regions is needed to better understand the relationship between oceanographic changes and coastal ecosystems. Seawater radiocarbon is a unique proxy to understand the properties of water masses. Reef-building corals have been employed extensively and successfully in conducting this type of research into past ocean circulation histories. However, their distribution is limited to the low latitudes and hence alternative archives are required for studies in mid to high-latitude locations. Here, we use abalone shell samples obtained from Otsuchi Bay located in the Tohoku region on the Pacific coast of Northern Japan. Radiocarbon in abalone shells was compared with dissolved inorganic carbon in two-year-long records of river water as well as seawater. The data indicate that abalone shells can be used to reconstruct past seawater radiocarbon variations in northern Japan where coral skeletons are not available for ocean mixing studies.
Replicated evidence that endophenotypic expression of schizophrenia polygenic risk is greater in healthy siblings of patients compared to controls, suggesting gene–environment interaction. The EUGEI study
Authors: van Os Jim , Pries Lotta-Katrin , Delespaul Philippe , Kenis Gunter , Luykx Jurjen J. , Lin Bochao D. , Richards Alexander L. , Akdede Berna , Binbay Tolga , Altınyazar Vesile , Yalınçetin Berna , Gümüş-Akay Güvem , Cihan Burçin , Soygür Haldun , Ulaş Halis , Cankurtaran Eylem Şahin , Kaymak Semra Ulusoy , Mihaljevic Marina M. , Petrovic Sanja Andric , Mirjanic Tijana , Bernardo Miguel , Cabrera Bibiana , Bobes Julio , Saiz Pilar A. , García-Portilla María Paz , Sanjuan Julio , Aguilar Eduardo J. , Santos José Luis , Jiménez-López Estela , Arrojo Manuel , Carracedo Angel , López Gonzalo , González-Peñas Javier , Parellada Mara , Maric Nadja P. , Atbaşoğlu Cem , Ucok Alp , Alptekin Köksal , Saka Meram Can ,   Genetic Risk and Outcome Investigators (GROUP), Arango Celso , O'Donovan Michael , Rutten Bart P. F. , Guloksuz Sinan 
Published: August 2019

AbstractBackgroundFirst-degree relatives of patients with psychotic disorder have higher levels of polygenic risk (PRS) for schizophrenia and higher levels of intermediate phenotypes.MethodsWe conducted, using two different samples for discovery (n = 336 controls and 649 siblings of patients with psychotic disorder) and replication (n = 1208 controls and 1106 siblings), an analysis of association between PRS on the one hand and psychopathological and cognitive intermediate phenotypes of schizophrenia on the other in a sample at average genetic risk (healthy controls) and a sample at higher than average risk (healthy siblings of patients). Two subthreshold psychosis phenotypes, as well as a standardised measure of cognitive ability, based on a short version of the WAIS-III short form, were used. In addition, a measure of jumping to conclusion bias (replication sample only) was tested for association with PRS.ResultsIn both discovery and replication sample, evidence for an association between PRS and subthreshold psychosis phenotypes was observed in the relatives of patients, whereas in the controls no association was observed. Jumping to conclusion bias was similarly only associated with PRS in the sibling group. Cognitive ability was weakly negatively and non-significantly associated with PRS in both the sibling and the control group.ConclusionsThe degree of endophenotypic expression of schizophrenia polygenic risk depends on having a sibling with psychotic disorder, suggestive of underlying gene–environment interaction. Cognitive biases may better index genetic risk of disorder than traditional measures of neurocognition, which instead may reflect the population distribution of cognitive ability impacting the prognosis of psychotic disorder.
The Vindolanda Writing-Tablets (Tabulae Vindolandenses IV, Part 3): New Letters of Iulius Verecundus
Authors: Bowman A.K. , Thomas J.D. , Tomlin R.S.O. 
Published: August 2019

AbstractThis article contains full editions with commentary of a selection from the ink writing-tablets discovered in the excavation of 2017, four letters written by or to the prefect Iulius Verecundus. The editions are numbered continuously from 890, following the sequence in Tab. Vindol. IV.1 and 2.
Group proximity and mutual understanding: measuring onsite impact of a citizens’ summit
Authors: Pigmans Klara , Dignum Virginia , Doorn Neelke 
Published: August 2019

AbstractTo better understand the impact of deliberations during participatory policymaking events, we introduce and explore the concept of group proximity. An example of such events is citizens’ summits, during which many parallel groups deliberate on solutions for a policy issue. At the summit that was studied, each group followed a value deliberation process with the aim to increase mutual understanding among participants. They were asked to rank the solutions in their order of preference before and after the deliberation. From these rankings, group proximity can be calculated with a rank correlation, enabling a precise comparison of participants’ preferences in each deliberative group. High group proximity indicates very similar rankings in a deliberative group, while low group proximity demonstrates the opposite. Comparing group proximity of the before and after rankings shows if a group ranked convergent, unchanged or divergent. This measure allows for a quantitative analysis of early-stage public policymaking processes.
Lyapunov-Based Formation Control of Underwater Robots
Authors: Keymasi Khalaji Ali , Zahedifar Rasoul 
Published: August 2019

SUMMARYToday, automatic diving robots are used for research, inspection, and maintenance, extensively. Control of autonomous underwater robots (AUVs) is challenging due to their nonlinear dynamics, uncertain models, and the system underactuation. Data collection using underwater robots is increasing within the oceanographic research community. Also, the ability to navigate and cooperate in a group of robots has many advantages compared with individual navigations. Among them, the effectiveness of using resources, the possibility of robots’ collaboration, increasing reliability, and robustness to defects can be pointed out. In this paper, the formation control of underwater robots has been studied. First, the kinematic model of the AUV is presented. Next, a novel Lyapunov-based tracking control algorithm is investigated for the leader robot. Subsequently, a control law is designed using Lyapunov theory and feedback linearization techniques to navigate a group of follower robots in a desired formation associated with the leader and follow it simultaneously. In the obtained results for different reference paths and various formations, the effectiveness of the proposed algorithm is represented.
Causative purpose adjuncts in Estonian and Finnish: A non-linear approach
Authors: Paulsen Geda , Nikanne Urpo 
Published: August 2019

AbstractIn this article, we examine the form and meaning of a subtype of causative adjuncts,purpose adjuncts, in Estonian and Finnish. The analysis is based on the micro-modular approach of Conceptual Semantics (Nikanne 1990, 2005, 2018; Pörn 2004; Paulsen 2011a, 2011b; Petrova 2011). It provides a non-linear approach to linguistic causation, alternative to the linear models. By the term ‘non-linear’ we mean the involvement of separate levels of conceptual structure that influence the causative reading, and a separation of causation from the temporal flow of the situation. We propose two causative operators for subordinate causative structures, BECAUSE OF and LEAD TO. According to their temporal structures, we separate two types of purpose adjuncts:reason-purpose adjunctsandavoidance adjuncts. The causative effect of purpose is in our analysis related to the notion of intentionality.
Returning urban political elites to the research agenda: the case of the Southern Low Countries (c. 1350 –c. 1550)
Authors: Buylaert Frederik , Baguet Jelten , Everaert Janna 
Published: August 2019

AbstractThis article provides a comparative analysis of four large towns in the Southern Low Countries betweenc. 1350 andc. 1550. Combining the data on Ghent, Bruges and Antwerp – each of which is discussed in greater detail in the articles in this special section – with recent research on Bruges, the authors argue against the historiographical trend in which the political history of late medieval towns is supposedly dominated by a trend towards oligarchy. Rather than a closure of the ruling class, the four towns show a high turnover in the social composition of the political elite, and a consistent trend towards aristocracy, in which an increasingly large number of aldermen enjoyed noble status. The intensity of these trends differed from town to town, and was tied to different institutional configurations as well as different economic and political developments in each of the four towns.
Increased pregnancy outcome after day 5 versus day 6 transfers of human vitrified-warmed blastocysts
Authors: Sciorio Romualdo , Thong K.J. , Pickering Susan J. 
Published: August 2019

SummaryVitrification is a highly efficient technique for the cryopreservation of the human embryo. The effect of delayed blastulation may be responsible for implantation failures and negatively affects in vitro fertilization (IVF) outcomes. The current literature displays discordant results; some studies have announced higher pregnancy rates after day 5 (D5) transfer compared with day 6 (D6) transfer, while others have shown equivalent outcomes. In the present study an investigation into the clinical implications of delayed blastulation (D5 versus D6) was carried out. We performed a retrospective study comparing clinical pregnancies and implantation rates following warmed single blastocyst transfer (WSBT). All patients coming for a programmed warmed transfer at Edinburgh Assisted Conception Programme, EFREC, Royal Infirmary of Edinburgh, were included in this study and divided in two groups according to the day of blastocyst vitrification: D5 (n = 1563) and D6 (n = 517). The overall survival rate was 95.0% (1976/2080) with no significant difference between the D5 and D6 groups: 95.3% (1489/1563) and 94.2% (487/517) respectively. WSBT of D6 blastocysts resulted in a lower implantation and clinical pregnancy compared with D5 embryos. The implantation rate (IPR) and clinical pregnancy rate (CPR) were respectively 49.4% and 42.6% for the D5 and 37.4% and 32.2% for the D6 embryos, which was statistically significant. The multiple pregnancy rate was 1.32% (1.14% for D5 vs 1.84% for D6). Although the transfer of D6 vitrified-warmed blastocyst remains a reasonable option, priority to a D5 embryo would reduce the time to successful pregnancy.