bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Dilemma for Benatar’s Asymmetry Argument
Authors: Yoshizawa Fumitake 
Published: May 2021

AbstractIn this paper, I show that David Benatar’s asymmetry argument for anti-natalism leads to a dilemma. In Chapter 2 of his bookBetter Never to Have Been, Benatar claims that there is an axiological asymmetry between harms and benefits that explains four prevalent asymmetries. Based on the axiological asymmetry, he defends the anti-natalist conclusion that we should not have children. The four prevalent asymmetries to be explained are moral duties, reasons, attitudes, or feelings concerning life as a whole. However, Benatar explains them by applying the axiological asymmetry to parts of life, such as pains and pleasures. I find a serious gap here. While two ways are available to bridge this gap, a dilemma arises from Benatar’s asymmetry argument. The axiological asymmetry is not supported because it cannot explain the four prevalent asymmetries, or else it cannot lead to the anti-natalist conclusion. A number of philosophers have already criticized Benatar’s asymmetry argument, mainly questioning its assumptions. In this paper, I contend that there is no good reason to agree with his argument even if all its explicit assumptions are accepted.
Longitudinal zonation of larval Hydropsyche (Trichoptera: Hydropsychidae): abiotic environmental factors and biotic interactions behind the downstream sequence of Central European species
Authors: Ficsór Márk , Csabai Zoltán 
Published: May 2021

AbstractThe aim of this review is to summarize the literature knowledge about how abiotic environmental factors and biotic interactions affect the sequentially overlapping longitudinal distribution of Central European species of the net-spinning freshwater caddisfly larvae of the genus Hydropsyche (Trichoptera: Hydropsychidae). In this relation, several physical and chemical parameters of water are discussed, as well as different species-specific traits, behavioural aspects and the interaction of coexisting species. Longitudinal gradients of river networks, especially annual temperature range, flow velocity and the particle size of suspended food material play a crucial role in forming the downstream succession of characteristic species, while increased levels of organic pollution, nutrients, salinity and heavy metals facilitates the presence of more tolerant ones. Several species-specific traits, such as respiration range, net-building frequency, head capsule size or optimal net-building velocity correlate with the position of a given species in the sequence. Coexistence of species with similar ecological demands in the overlapping zones of distribution is facilitated by differences in feeding and net-building habits, microhabitat preferences and staggering life cycles, but complicated at the same time by means of inter- and intraspecific territorial behaviour, such as fighting for the ownership of larval retreats or the practice of stridulation.
Mechanical transfer of electrochemically grown molybdenum sulfide layers to silicon wafer
Authors: Nisar Talha , Balster Torsten , Wagner Veit 
Published: May 2021

Abstract
Large area MoS2 ultra-thin film deposition is one of the big challenges in the recent years. Electrodeposition provides an opportunity to grow such ultra-thin films on large scale. However, the transfer of the electrochemically grown film is challenging. Standard transfer of those thin films is done by wet etching in which the underlying substrate is etched. In this work, the polymer coated electrodeposited MoS2 films on Au are separated mechanically from the underlying substrate by using ultra-sonication. Collapse of micron-sized bubbles produced by ultra-sonication at the interface of Au and silicon substrate provides enough energy for separation due to their weak adhesion. The Au layer is then removed by standard Au-etchant (K/KI) and the polymer coated film is transferred to a desired substrate. Ammonium tetrathiomolybdate (ATTM) has been used as precursor material for the electrodeposition of the films. Initial electrochemically grown films consist of MoS3 which is reduced to MoS2 by a post-annealing step at 450–900 °C. Obtained films are investigated by AFM, Raman, UV–Vis and XPS. Crystal quality improves by increasing the post-annealing temperature. The thickness of the thinnest film was found to be equivalent to 2 monolayers of MoS2, which is desirable for future electronics.

Graphic abstract
Geophysical surveys integrated with rainfall data analysis for the study of soil piping phenomena occurred in a densely urbanized area in eastern Sicily
Authors: Patti Graziano , Grassi Sabrina , Morreale Gabriele , Corrao Mauro , Imposa Sebastiano 
Published: May 2021

AbstractThe occurrence of strong and abrupt rainfall, together with a wrong land use planning and an uncontrolled urban development, can constitute a risk for infrastructure and population. The water flow in the subsoil, under certain conditions, may cause underground cavities formation. This phenomena known as soil piping can evolve and generate the surface collapse. It is clear that such phenomena in densely urbanized areas represent an unpredictable and consistent risk factor, which can interfere with social activities. In this study a multidisciplinary approach aimed to obtain useful information for the mitigation of the risks associated with the occurrence of soil piping phenomena in urban areas has been developed. This approach is aimed at defining the causes of sudden soil subsidence events, as well as the definition of the extension and possible evolution of these instability areas. The information obtained from rainfall data analysis, together with a study of the morphological, geological and hydrogeological characteristics, have allowed us to evaluate the causes that have led to the formation of soil pipes. Furthermore, performance of 3D electrical resistivity surveys in the area affected by the instability have allowed us to estimate their extension in the subsoil and identifying the presence of further areas susceptible to instability.
Design and validation of an MPC controller for CMG-based testbed
Authors: Facchino Matteo , Totsuka Atsushi , Capello Elisa , Satoh Satoshi , Guglieri Giorgio , Yamada Katsuhiko 
Published: May 2021

AbstractIn the last years, Control Moment Gyros (CMGs) are widely used for high-speed attitude control, since they are able to generate larger torque compared to “classical” actuation systems, such as Reaction Wheels . This paper describes the attitude control problem of a spacecraft, using a Model Predictive Control method. The features of the considered linear MPC are: (i) a virtual reference, to guarantee input constraints satisfaction, and (ii) an integrator state as a servo compensator, to reduce the steady-state error. Moreover, the real-time implementability is investigated using an experimental testbed with four CMGs in pyramidal configuration, where the capability of attitude control and the optimization solver for embedded systems are focused on. The effectiveness and the performance of the control system are shown in both simulations and experiments.
Reintroducing “the” Scientific Method to Introduce Scientific Inquiry in Schools?
Authors: Emden Markus 
Published: May 2021

AbstractThere are some crucial critiques on scientific inquiry and “the” Scientific Method in current science education. Recent research literature is replete with arguments against inquiry’s legitimacy to be included in science classes, and it has even been abandoned from the Next Generation Science Standards. Critics of scientific inquiry in schools blame it to be a caricature of authentic inquiry suffering from five shortcomings: (1) knowledge becomes desocialized from its generative contexts, (2) scientific inquiry in schools suggests methodological monism favoring (3) a primacy of experimentation, (4) which portrays scientific inquiry as a knowledge automaton (5) raising an illusion of determination with regard to the generation of knowledge. This article argues for a reorientation of scientific inquiry in schools tentatively embracing “the” Scientific Method anew since critics appear not to sufficiently consider that scientific inquiry operates differently in schools from science. It will be shown that most critiques can be defused when untangling such an illegitimate mix-up of science proper with school science. It will be argued that current (and recent) descriptions of how science generates knowledge lack authoritative validity and should be fundamentally revisited. “The” Scientific Method will be shown to be a valid idealization that can serve as a frame of reference for introductory science classes. Still, it is understood that science education needs to extend beyond “the” Scientific Method if it is to prepare for science-related careers.
Race, Ethnicity, and Immigration Status in a Medical Licensing Educational Resource: a Systematic, Mixed-Methods Analysis
Authors: Cerdeña Jessica P. , Jaswaney Rohit , Plaisime Marie V. 
Published: May 2021

Abstract
Background
Medical students preparing for the United States Medical Licensing Exam (USMLE) Step 2 Clinical Knowledge (CK) Exam frequently use the UWorld Step 2 CK Question Bank (QBank). Over 90% of medical students use UWorld QBanks to prepare for at least one USMLE. Although several questions in the QBank mention race, ethnicity, or immigration status, their contributions to the QBank remain underexamined.

Objective
We conducted a systematic, mixed-methods content analysis to assess whether and how disease conditions might be racialized throughout this popular medical education resource.

Design
We screened 3537 questions in the QBank between May 28 and August 11, 2020, for mentions of race, ethnicity, or immigration status. We performed multinomial logistic regression to assess the likelihood of each racial/ethnic category occurring in either the question stem, answer explanation, or both. We used an inductive technique for codebook development and determined code frequencies.

Main Measures
We reviewed the frequency and distribution of race or ethnicity in question stems, answer choices, and answer explanations; assessed associations between disease conditions and racial and ethnic categories; and identified whether and how these associations correspond to race-, ethnicity-, or migration-based care.

Results
References to Black race occurred most frequently, followed by Asian, White, and Latinx groups. Mentions of race/ethnicity varied significantly by location in the question: Asian race had 6.40 times greater odds of occurring in the answer explanation only (95% CI 1.19–34.49; p < 0.031) and White race had 9.88 times greater odds of occurring only in the question stem (95% CI 2.56–38.08; p < 0.001). Qualitative analyses suggest frequent associations between disease conditions and racial, ethnic, and immigration categories, which often carry implicit or explicit biological and genetic explanations.

Conclusions
Our analysis reveals patterns of race-based disease associations that have potential for systematic harm, including promoting incorrect race-based associations and upholding cultural conventions of White bodies as normative.
Using tool wear to increase process stability when milling Al7075 and AISI 4140+QT
Authors: Denkena Berend , Krödel Alexander , Relard Andreas 
Published: May 2021

AbstractOne of the main limits of productivity during cutting processes is the occurrence of regenerative chatter. Due to these self-excited vibrations, the load capacity of the machine components, the tool as well as the machine performance cannot be fully utilized. There are several methods to stabilize the milling process. One is the use of increased process damping, which results from the contact of the tool’s flank face and the workpiece. The flank wear land naturally increases the contact between tool and workpiece. However, this effect has not been used to increase productivity in milling processes. This paper investigates with experiments and numerical simulations how tool wear affects process stability in milling of aluminum and steel. Therefore slot milling and side milling tests were carried out with tools of various states of flank wear. It could be shown that increasing flank wear allows to raise the depth of cut ap up to 300% in machining aluminum and perform the machining process with a higher productivity.
Changing attitudes towards annual influenza vaccination amongst staff in a Tertiary Care Irish University Hospital
Authors: Kearns Emma C. , Callanan Ian , O’Reilly Ann , Purcell Aisling , Tuohy Niamh , Bulfin Siobhan , Smyth Angela , Bairead Emer , Fitzgerald Susan , Feeney Eoin , Waqas Sarmad 
Published: May 2021

AbstractBackgroundHealthcare workers are encouraged annually to get vaccinated against influenza. This year in view of COVID-19 pandemic, attitudes of HCWs towards vaccination are particularly important. A cross-sectional study was completed to understand how to best encourage and facilitate the vaccination of HCWs based on the previous years’ findings.MethodsAn online survey was disseminated to all hospital staff via electronic channels. The clinical audit sphinx software was used for data collection and analysis.ResultsThe total number of responses wasn = 728, almost double the rate from 2018 (N = 393). A total of 78% (N = 551) of participants were vaccinated last year. A total of 94% (N = 677) of participants reported their intention to be vaccinated this year. The main barriers listed were being unable to find time (32%,N = 36), side effects (30%,N = 33) and thinking that it does not work (21%,N = 23). The most popular suggestions for how to increase uptake were more mobile immunisation clinics (72%,N = 517) and more information on the vaccine (50%,N = 360). A total of 82% of participants (N = 590) agreed that healthcare workers should be vaccinated, with 56% (N = 405) agreeing that it should be mandatory. Of the participants who were not vaccinated last year (N = 159), 40% (N = 63) agreed that COVID-19 had changed their opinion on influenza immunisation with a further 11% (N = 18) strongly agreeing.DiscussionIn light of the increasing number of survey participants, more staff were interested in flu vaccination this year than ever before. The COVID-19 pandemic has had some influence on staff’s likelihood to be vaccinated. Feasibility of immunisation and education posed the largest barriers to HCW vaccination.
A Structured Approach to Recover Valuable Compounds from Agri-food Side Streams
Authors: Moreno-González Mónica , Ottens Marcel 
Published: May 2021

AbstractFood side streams contain useful compounds such as proteins, sugars, polyphenols, and amino acids that might get discarded during processing. The concentration of these components may be low (e.g., fruit side streams are mainly composed by water, around 90%, while polyphenol content in rapeseed meal is less than 3% dry weight) and therefore effective separation techniques should be evaluated. The aim of this review is to identify the different process steps (like pretreatment, volume reduction, phase change, solid removal, purification, and formulation) required to recover high-value products from agri-food residues. It reviews different plant-based byproducts as sources (cereal bran, fruit pomace, oilseed meals, fruit wastewater) of valuable compounds and discusses the relevant technologies required for processing (such as extraction, adsorption, crystallization, drying, among others). A structured approach to design recovery processes presented focused on high purity products. This work demonstrates that multiple high-value products can be recovered from a single agri-food side stream depending on the processing steps and the origin source (strong and soft structures and wastewater).
Optimizing transportation in the precast concrete plants
Authors: Nicał Aleksander 
Published: May 2021

AbstractIn addition to aggregates, cement, water and reinforcement, transportation is one of the key aspects in operating a precast concrete manufacturing plant. The cost of transportation in precast concrete manufacturing plants is closely related to electricity prices. Despite intensive efforts to implement renewable energy sources, still, 2/3 are non-renewable sources, such as coal, natural gas and oil. Taking into account the negative impact on the environment associated with the exploration of non-renewable resources and the observed increase in electricity prices, it is necessary to find alternative solutions that minimize environmental and financial costs. The paper presents a model for the selection of optimal transportation system inside the precast concrete manufacturing plant. It ensures the fullest possible use of equipment resources, in this case, rail trolleys capacity, and minimization of their journey number. The paper describes three internal transportation systems that are shuttle, radial and circular. Moreover, the paper contains a case study, concerning the determination of the optimal transportation program between workstations. As a result of the analyses carried out, a model was developed, including the strategy of journey planning with the assumption of minimum costs and maximum use of the capacity of rail trolleys.
Delineation of the Causative Fault of Recent Earthquakes (April-May 2020) in Delhi from Seismological and Morphometric Analysis
Authors: Bansal Brijesh K. , Mohan Kapil , Haq Ahsan Ul , Verma Mithila , Prajapati S. K. , Bhat G. M. 
Published: May 2021

Abstract
Recently, amid the pandemic of COVID-2019, the north-east Delhi region experienced two small earthquakes in a short span of 1 month; the first occurred on 12th April 2020 (Mw 3.5) and the other on 10th May 2020 (Mw 3.4). These events were followed by 4 aftershocks of magnitude Mw ≤ 3.0. We carried out morphotectonic (high stream length-gradient index) and static Coulomb stress failure analyses to delineate the hidden causative fault(s) in the region. In the study, ASTER DEM data of 30 m resolution and Survey of India (SoI) toposheets on 1:50,000 scales were used for morphotectonic analysis. The analysis depicted a very high stream length-gradient (SL) and fall in elevation in the epicentral area, suggesting the area to be tectonically active with a NE-SW trending fault line. In addition, the nature of static Coulomb failure stress contours for both the main events, Mw 3.5 and Mw 3.4, suggests an NNE-SSW trending high Coulomb stress regime. Such a high coulomb stress regime is obvious at the location where a high SL index and fall in elevation were marked, which clearly indicates the presence of NNE-SSW trending a causative fault, named ‘Khanpur-Japti fault’.
Volcano Sedimentary Origin of Archaean Banded Iron Formation of Nellore Schist Belt from Chundi-Malakonda-Ayyavaripalle Area, Prakasam District, Andhra Pradesh and its Petro-chemical Characterization
Authors: Kar Eirin , Mishra Shibani , Ghosh Prasun 
Published: May 2021

Abstract
Banded iron formations (BIFs) are the most significant source of iron in the world. The present study addresses the petrographic and geochemical characterization of the BIF from Chundi-Malakonda-Ayyavaripalle area in the Nellore schist belt of Prakasam district, Andhra Pradesh, their genesis and iron enrichment processes. Six bands of banded magnetite quartzite (BMQ) of Archaean age occur in the area. Field investigations and petrography revealed that the studied BIF samples are hard, compact, weathered and composed of alternate layers of magnetite/martite and subordinate quartz, biotite and muscovite. The BIFs occur in three associations: volcanic (Band 1,3,4,5), sedimentary (Band 6) and volcano-sedimentary (Band 2).
The geochemical composition of the whole rock reveals that iron and silica represent 78.48% to 91.74% of the average composition. The total iron (TFe) contents range from 16.25 to 61.80 wt % (average of 38.47 wt %) and is consistent with low-grade siliceous BIF by global standards. All BIFs have high SiO2/Al2O3, Fe/Ti, and low Al/(Al+Fe+Mn), which suggest a mixed hydrogenous and hydrothermal origins. Geochemical results for the BIFs lead to the conclusion that all the BIFs are of Algoma-type with Precambrian affinity and formed in small sloped or terraced silled basins in the back-arc areas with MORB affinity, surrounding an immature island arc. Depending on the degree of replacement and shape of the magnetite crystals, two textural types of magnetite (Magnetite-I and Magnetite-II) are observed. Ore formation occurs in three stages: Magnetite (protore), Martites and Martite-goethites.
Signatures of Heavy Metal concentration over Laterites identified through Regional Stream Sediment Geochemical Survey in parts of Katni, Panna and Satna Districts of Madhya Pradesh, India
Authors: Bagchi Joyesh , Dubey Jyoti , Shimyaphy R.V.S. , Singh Nisha 
Published: May 2021

Abstract
As a part of National Geochemical Mapping (NGCM) programme of GSI, regional geochemical mapping was carried out for an area of 705 sq km in parts of Katni, Panna and Satna districts of Madhya Pradesh covering toposheet number 64A/05 bounded by latitudes N23°45′00″ to N24°00′00″ and longitudes E80°15′00″ to E80°30′00″. Chemical analyses of 182 composite stream/slope sediments samples were carried out and baseline geochemical maps of oxides and elements were prepared. Data analyses has led to significant conclusions on environment hazard due to metal contamination and possible mineral potential due to REE enrichment. Study of the spatial distribution of individual variables showed Cr and Co have values higher than the permissible level in dry soils in some parts of the area which requires investigation by concerned agencies. Some samples over the laterites show higher than threshold values of REEs which are much higher than their crustal abundance. Factor analyses on the geochemical data with 46 oxides and elements has led to the identification of five factors accounting for 84% of the total variance of the data set and describing five physico-chemical processes controlling the spatial geochemical variation. The analyses points to the enrichment of the REEs in the lateritisation process. The laterites covering 171 sq km of the area need to be considered for investigation of REE potential.
Engineering Geological and Geotechnical Assessment of the Foundation of Yaragol Gravity Dam – A Case Study form India
Authors: Jain Prasnna , Naithani A. K. , Singh L. G. , Rawat D. S. , Subrahmanyam D. S. 
Published: May 2021

Abstract
Engineering geological and geotechnical assessment of the dam foundation are essential for the design of the dam to ensure safety. At the southeastern part of Karnataka, Yaragol gravity dam is being constructed, which is designed based on site geomorphological and geological conditions and economic reasons. This paper discusses the results of the engineering geological and geotechnical investigations that have been carried out at the foundation levels of the dam. The dam foundation is composed of foliated gneiss and granite gneiss belonging to Archean to Paleoproterozoic age with intrusive dykes. This study is based on field and laboratory investigations, surface discontinuity mapping, drilled borehole data and in-situ shear testing. In-situ shear parameters of rock-rock interfaces and concrete-rock interfaces were conducted for the evaluation of dam stability against sliding. The classification and rock mass quality of the dam site is assigned using the rock mass rating (RMR) for all the 19 blocks and allowable bearing pressure (qallow) is assessed based on rock types and RMR. At all the blocks foundation, geological defects were mapped and analyzed and treated with suitable engineering measures. Based on structural features mapped, curtain grouting and consolidation grouting is recommended.