bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modification of Halloysite Nanotubes for Enhancement of Gas-Adsorption Capacity
Authors: Lim Sungho , Park Sooji , Sohn Daewon 
Published: June 2020

AbstractStructure control and quantitative evaluation of porous materials are essential for many industrial and consumer applications of clay minerals, and nanotubular halloysite (HNT) has been used extensively for such purposes; performance enhancements are still needed, however. The objective of the present study was to improve the gas-adsorption capacity of HNT by controlling the particle size and porosity. This was accomplished through acid treatment and particle-size fractionation by centrifugation. Various particle sizes were obtained and porosities ranged from macropores to mesopores. Natural halloysite nanotubes were modified by sulfuric acid in various concentrations to selectively remove the alumina composition of the tubes. X-ray diffraction and energy dispersive X-ray spectroscopy were used to verify the mineralogical and compositional changes. Surface modification by the acid treatment increased the inner space volume of the tubes and decreased the mass of the nanotubes because of the elimination of alumina. The gas adsorption capacity of both natural and modified halloysite nanotubes was measured quantitatively using N2 adsorption and the Brunauer-Emmett-Teller (BET) method, and the morphology was determined from transmission electron microscopy (TEM) images. The results showed that the modified halloysite nanotube was 7.47 times more efficient at gas adsorption than pristine halloysite. Moreover, the dealumination of the surface increased the inner space. Greatly increased porosity characteristics, including gas adsorption and macroporosity, were obtained through modification by acid treatment.
Medicine for Hatred: Civil, Criminal, and Supernatural Justice at the Nae We Shrine Tribunal in Accra, Ghana
Authors: Roberts Jonathan , Codjoe Richard Nii Oshiu , Davison Jenny , Martin Flair , Mills Janet , Parsons Zackary 
Published: June 2020

AbstractGa proverbial wisdom holds that “hate has no medicine,” but there is a sacred court in Accra where people can calm the animosity that emerges from social conflicts. A unique form of vernacular jurisprudence has emerged at the Nae We Shrine Tribunal, which manages the consequences of civil, criminal, and supernatural crimes without raising the ire of human rights activists. Using records from this shrine court, the authors of this article demonstrate how the Tribunal offers social and spiritual wellbeing in a manner that cannot be provided by the chiefly and state judicial systems.
Chasing the rate: An interrupted time series analysis of interventions targeting reported hospital onset Clostridioides difficile, 2013–2018
Authors: Doll Michelle E. , Zhao Jinlei , Kang Le , Rittmann Barry , Alvarez Michael , Fleming Michele , Cooper Kaila , Stevens Michael P. , Bearman Gonzalo 
Published: June 2020

AbstractObjective:To assess the impact of major interventions targeting infection control and diagnostic stewardship in efforts to decrease Clostridioides difficile hospital onset rates over a 6-year period.Design:Interrupted time series.Setting:The study was conducted in an 865-bed academic medical center.Methods:Monthly hospital-onset C. difficile infection (HO-CDI) rates from January 2013 through January 2019 were analyzed around 5 major interventions: (1) a 2-step cleaning process in which an initial quaternary ammonium product was followed with 10% bleach for daily and terminal cleaning of rooms of patients who have tested positive for C. difficile (February 2014), (2) UV-C device for all terminal cleaning of rooms of C. difficile patients (August 2015), (3) “contact plus” isolation precautions (June 2016), (4) sporicidal peroxyacetic acid and hydrogen peroxide cleaning in all patient areas (June 2017), (5) electronic medical record (EMR) decision support tool to facilitate appropriate C. difficile test ordering (March 2018).Results:Environmental cleaning interventions and enhanced “contact plus” isolation did not impact HO-CDI rates. Diagnostic stewardship via EMR decision support decreased the HO-CDI rate by 6.7 per 10,000 patient days (P = .0079). When adjusting rates for test volume, the EMR decision support significance was reduced to a difference of 5.1 case reductions per 10,000 patient days (P = .0470).Conclusion:Multiple aggressively implemented infection control interventions targeting CDI demonstrated a disappointing impact on endemic CDI rates over 6 years. This study adds to existing data that outside of an outbreak situation, traditional infection control guidance for CDI prevention has little impact on endemic rates.
Protein and carbohydrate distribution among the meals: effect on metabolic parameters of patients with type 2 diabetes: a single-blinded randomised controlled trial
Authors: Nouripour Fatemeh , Mazloom Zohreh , Fararouei Mohammad , Zamani Ali 
Published: June 2020

AbstractStudies have revealed that the timing of macronutrient ingestion may influence body weight and glucose tolerance. We aimed to examine the effect of high protein v. high carbohydrate intake at the evening meal on metabolic parameters of patients with type 2 diabetes. This is a single-blinded, parallel, randomised controlled trial. Ninety-six patients with type 2 diabetes, aged 32–65 years with a mean BMI of 28·5 (sd 3·4) kg/m2, were randomly assigned into one of these three groups: standard evening meal (ST), high-carbohydrate evening meal (HC) and high-protein evening meal (HP). Then, the patients were followed for 10 weeks. HbA1c, fasting blood glucose, fasting insulin, insulin resistance, TAG, LDL-cholesterol, VLDL-cholesterol, diastolic blood pressure, body weight, body fat percentage and waist circumference decreased significantly in all three groups (P < 0·05). HbA1c showed more improvement in the ST compared with the HP group (–0·45 (sd 0·36) v. –0·26 (sd 0·36)). Reductions in BMI and body weight were significantly higher in the ST compared with the HP group (P < 0·05). Reductions in total cholesterol, non-HDL-cholesterol and systolic blood pressure were significant in all groups, except for the HP group. Non-HDL-cholesterol:HDL-cholesterol remained unchanged in all groups. The results of the present study revealed that even distribution of carbohydrates and protein among meals compared with reducing carbohydrates and increasing protein at dinner may have a more beneficial effect on glycaemic control of patients with type 2 diabetes.
Preventing trauma during rigid oesophagoscopy in the edentulous patient: how I do it
Authors: Bola S , Munnings A , Corbridge R 
Published: June 2020

AbstractBackgroundRigid oesophagoscopy is a widely used therapeutic and diagnostic procedure. Smooth friction-free insertion of the rigid scope is important to prevent oral and oesophageal mucosal damage, as such damage can cause delays in oral intake or more serious complications such as perforation. Protection appliances such as gum guards are useful adjuncts to cushion the teeth in rigid oesophagoscopy; however, there are no specific adjuncts for the edentulous patient.MethodsIn order to investigate different adjuncts, the force required to pull a standard adult rigid oesophagoscope from a metal clamp whilst enclosed in dry gauze, wet gauze, a gum guard or sleek on gauze was recorded, and a prospective audit of post-procedural trauma was performed.Results and conclusionLess force was required to create movement of the scope against sleek on gauze, with a lower rate of oral trauma (8 per cent) compared to that reported in the literature. Sleek on gauze is recommended for the edentulous patient.
Government through Inaction: The Venezuelan Migratory Crisis in Ecuador
Authors: Beyers Christiaan , Nicholls Esteban 
Published: June 2020

AbstractThis article analyses strategies for channelling a migrant population out of a country by indirect means. Specifically, we examine the response of the Ecuadorean state to the influx of Venezuelan newcomers since 2015. We argue that this response has been characterised by inaction, rooted not in policy failures or bad governance, but rather in a strategic governmental rationality. We show how migrants are ‘herded’ out of the country as a result of a form of indirect government that works differently from other ‘anti-immigrant’ policies like forced deportations or incarceration at the border, and yet produces similar outcomes.
Medea the Refugee
Authors: Kasimis Demetra 
Published: June 2020

AbstractThis essay reads Euripides'sMedea, the tragedy of filicide, as a critical investigation into the making of a refugee. Alongside the common claim that the drama depicting a wife murdering her children to punish an unfaithful husband is about gender inequity, I draw out another dimension: that the text's exploration of women's subordination doubles as a rendering of refuge seeking. Euripides introduces Medea as aphugas, the term for a person exiled, on the run, displaced, vulnerable, and in need of refuge. I adopt thephugasas a lens for interpreting the tragedy and generating enduring insights into dynamics of “forced” migration. Taking this political predicament as the organizing question of the text enables us to understand how dislocation from the gender-structured family can produce physical displacement and a need for asylum while casting the political meaning of Medea's kin violence in a new light.
Sir John Davies on Custom and the Common Law
Authors: Heath Eugene 
Published: June 2020

AbstractSeventeenth-century English common lawyer Sir John Davies sets forth, in hisIrish Reports, a provocative and interesting argument on the nature of custom and its relation to the common law. This relatively unexplored argument shows how actions may emerge from conditions of liberty and slowly acquire qualities of social benefit and agreeability that are essential if the common law is to be identified with custom. Davies not only provides a coherent account of how custom might possess some reasonability, but he also seems to suggest that custom is unintended, thereby anticipating a theme found in eighteenth-century thinkers such as Mandeville, Hume, Ferguson, and Burke. In addition, Davies's account has important implications for political theory: the priority of the social over the political and a notion of political consent that arises via custom itself.
Opening universities’ doors for business? Marketization, the search for differentiation and employability in England
Authors: DURAZZI NICCOLO 
Published: June 2020

AbstractThe article investigates the causes and consequences of the increased engagement of British universities with employability and skills initiatives. By employing case studies of six universities based in England, it asks whether the increased engagement between higher education and the labour market is driven by universities or business and whether such engagement has increased the diversity of the higher education sector. Findings suggest that the alignment between labour market needs and educational provision in universities is strongly mediated by the competitive environment within which higher education institutions have been operating since the late 1990s: the higher education market – not the labour market – is the key driver for universities to engage in employability and skills initiatives. The article also questions the assumption that ‘competition’ leads to ‘differentiation’ in higher education. Rather, isomorphic tendencies seem to prevail over differentiation in the context of a highly competitive higher education market.
Adaptable and stable decentralized task allocation for hierarchical domains
Authors: Kazakova Vera A. , Sukthankar Gita R. 
Published: June 2020

AbstractMany real-world domains can benefit from adaptable decentralized task allocation through emergent specialization, especially in large teams of non-communicating agents. We begin with an existing bio-inspired response threshold reinforcement approach for decentralized task allocation and extend it to handle hierarchical task domains. We test the extension on self-deployment of a large team of non-communicating agents to patrolling a hierarchically defined set of areas. Results show near-ideal performance across all areas, while minimizing wasteful task switching through the development of specializations and subsequent respecializations when area demands change. A genetic algorithm is then used to evolve even more adaptable and stable task allocation behavior, by incorporating weight and power coefficients into agents’ response threshold reinforcement action probability calculations.
International law, the paradox of plenty and the making of resource-driven conflict
Authors: Cusato Eliana 
Published: June 2020

AbstractAccess to and distribution of natural resources have been since immemorable time at the root of violent conflict. Over the last few decades, international institutions, legal scholars and civil society started to pay attention to the dangerous liaison between resource commodities and wars. Current debates emphasize how, through sanctions, global regulatory initiatives, and legal accountability, the governance of natural resources in conflict and post-conflict countries has improved, although international law should play a greater role to support the transition to a durable peace. The aim of this article is to illuminate the biases and limitations of dominant accounts by exploring the influence of the resource curse thesis, and its hidden propositions, upon legal developments. Using the Sierra Leonean and Liberian Truth Commissions as a case study, it shows how legal practices and discourses have contributed to a narrow understanding of resource-driven wars as started by voracious rebel groups or caused by weak/authoritarian/corrupt governments. What is obscured by the current focus on greed and ineffective resource governance? What responsibilities and forms of violence are displaced? Engaging with these questions allows us to see the dynamics through which structural injustices and distributive concerns are marginalized in existing responses to these conflicts, how the status quo is perpetuated, and the more subtle ways in which external interventions in the political economy of the Global South take place.
Dynamical properties of Molecular Cloud Complexes at the Epoch of Reionization
Authors: Leung T. K. Daisy , Pallottini Andrea , Ferrara Andrea , Low Mordecai-Mark Mac 
Published: June 2020

AbstractThe Atacama Large (Sub-)millimeter Array (ALMA) has provided glimpse of the interstellar medium (ISM) properties of galaxies at the Epoch of Reionization (EoR); however, detailed understanding of their internal structure is still lacking. We present properties of molecular cloud complexes (MCCs) in a prototypical galaxy at this epoch studied in cosmological zoom-in simulations (Leung et al. 2019c). Typical MCC mass and size are comparable to nearby spirals and starburst galaxies (Mgas∼106.5Mȯ and R≃45–100 pc). MCCs are highly supersonic, with velocity dispersion of σgas≃20–100 km s−1 and pressure of P/kB ≃107.6Kcm−3, which are comparable to gas-rich starburst galaxies. In addition, we perform stability analysis to understand the origin and dynamical properties of MCCs. We find that MCCs are globally stable in the main disk of Althæa. Densest regions where star formation is expected to take place in clumps and cores on even smaller scales instead have lower virial parameter and Toomre-Q values. Detailed studies of the star-forming gas dynamics at the EoR thus require a spatial resolution of < 40 pc ( ≃ 0.01″), which is within reach of ALMA, to complement studies of stellar populations at EoR using the James Webb Space Telescope (JWST).
Theoretically modelling photoionised regions with fractal geometry in three-dimension
Authors: Jin Yifei , Kewley Lisa , Sutherland Ralph 
Published: June 2020

AbstractAccurate predictions of the physics of interstellar medium (ISM) are vital for understanding galaxy formation and evolution. Modelling photoionized regions with complex geometry produces realistic ionization structures within the nebulae, providing the necessary physical predictions to interpret observational data. 3D photoionization codes built with Monte Carlo techniques provide powerful tools to produce the ionizing radiation field with fractal geometry. We present a high-resolution Monte Carlo modelling of a nebula with fractal geometry, and will further show how nebular geometry influences the emission-line behaviours. Our research has important implications for studies of emission-line ratios in high redshift galaxies.
Diving deeper into jellyfish: The rich population of jellyfish galaxies in Abell 901/2
Authors: Roman-Oliveira Fernanda , Chies-Santos Ana , Ferrari Fabrício 
Published: June 2020

AbstractJellyfish galaxies are the most extreme examples of ram pressure stripping (RPS). They represent an important path in the morphological change and quenching in galaxy clusters, however they are still not well characterised morphologically and finding them is a complex task based mainly on visual inspection. We present a study on the properties of a large sample of jellyfish candidates in the multi-cluster system A901/2. We find evidence that the multi-cluster is triggering RPS events in preferential regions in the system and that these galaxies have enhanced specific star formation rates. We also use the software Morfometryka in order to analyse the unique morphometric features in jellyfish galaxies providing a better comprehension of their physical state and future. This can help unravel the physical processes behind such extreme morphologies as well as possibly automatising the search for jellyfish galaxy candidates in large surveys in the next era of instruments.
Molecular gas across cosmic time
Authors: Magdis Georgios E. 
Published: June 2020

AbstractWe have entered an era where the gas mass estimates of distant galaxies do not rely on a single tracer but rather on an inventory of different and independent methods, much like the case for the determination of the star formation rate (SFR) of the galaxies. This is crucial as the traditional Mgas tracers, i.e. low-J CO transition lines and dust continuum emission are becoming highly uncertain as we move to higher redshifts due to metallicity and CMB effects. Here, we present a homogeneous and statistically significant investigation of the use of atomic carbon as an alternative Mgas tracer (Valentino et al.2018) and provide evidence of optically thick far-IR emission in high−z starbursts that point towards higher dust temperatures and lower dust and gas mass estimates than previously inferred (Cortzen et al.2019, submitted). Finally, we present direct observations of the effect of the CMB on the far-IR SEDs of high-z SBs, manifested by unphyscally large (β = 2.5–3.5) apparent spectral indexes in R-J tail (Jin et al. 2019, submitted).
Molecular gas and dust emission in a z = 3.63 strongly lensed starburst merger at sub-kiloparsec scales
Authors: Yang C. , Gavazzi R. , Beelen A. , Cox P. , Omont A. , Lehnert M. D. 
Published: June 2020

AbstractWe present 0.″2–0.″4 resolution ALMA images of the submillimeter dust continuum and the CO, H2O, and H2O+ line emission in a z = 3.63 strongly lensed dusty starburst. We construct the lens model for the system with an MCMC technique. While the average magnification for the dust continuum is about 11, the magnification of the line emission varies from 5 to 22 across the source, resolving the source down to sub-kpc scales. The ISM content reveals that it is a pre-coalescence major merger of two ultra-luminous infrared galaxies, both with a large amount of molecular gas reservoir. The approaching galaxy in the south shows no apparent kinematic structure with a half-light radius of 0.4 kpc, while the preceding one resembles a 1.2 kpc rotating disk, separated by a projected distance of 1.3 kpc. The distribution of dust and gas emission suggests a large amount of cold ISM concentrated in the interacting region.
More than star formation: High-J CO SLEDs of high-z galaxies
Authors: Sharon Chelsea E. , Chng Reni , Gurara Kebron K. , Weiß Axel , Darling Jeremy , Riechers Dominik , Ferkinhoff Carl 
Published: June 2020

AbstractTheoretical work suggests that AGNs play an important role in quenching star formation in massive galaxies. In addition to molecular outflows observed in the local universe, emission from very high-J CO rotational transitions have been a key piece of evidence for AGN directly affecting the molecular gas reservoirs that fuel star formation. However, very few observations exist of CO rotational lines past the peak of the CO spectral line energy distribution (SLED) for galaxies in the early universe. Here we present new ALMA observations of high-J CO rotational lines (from CO(5–4) to CO(16–15)) in six z > 2 IR-bright systems, including several sources not known to contain a strong AGN for comparison. We detect significant amounts of high-excitation CO emission that suggests the presence of energy sources beyond UV-heating.
JWST advanced deep extragalactic survey: NIRCam imaging to z > 10
Authors: Rieke Marcia 
Published: June 2020

AbstractThe JWST Advanced Deep Extragalactic Survey (JADES) is a joint program of the JWST NIRCam and NIRSpec Guaranteed Time Observation (GTO) teams involving over 800 hours of observation. This paper describes the imaging portion of the program which covers nearly 200 square arc minutes divided between two well-studied fields with excellent supporting data (e.g. from Chandra, ALMA, and HST-CANDELS): GOODS North and South, including the Ultra Deep Field. NIRCam imaging will enable the study of galaxy evolution to z ∼ 10 and higher using multi-color imaging with 9 filters covering 0.9 to 5 microns. Such data will provide photometric redshifts and a wealth of data for constructing luminosity and mass functions. A key component of the program is rapid turn around of imaging into NIRSpec target lists. Preparing for this program has benefited from the development of a mock catalog and simulated imaging to test these processes.
What drives the [CII]/FIR deficit in submillimeter galaxies?
Authors: Rybak Matus , Hodge J. A. , Calistro Rivera G. ,   ALESS Collaboration
Published: June 2020

AbstractSubmillimeter galaxies at redshift z⩾1 show a pronounced [CII]/FIR deficit down to sub-kpc scales; however, the physical origin of this deficit remains poorly understood. We use resolved ALMA observations of the [CII], FIR and CO(3–2) emission in two z = 3 SMGs to distinguish between the different proposed scenarios; the thermal saturation of the [CII] emission is the most likely explanation.
Galactic outflows at high spatial resolution via gravitational lensing
Authors: Spilker Justin 
Published: June 2020

AbstractThe completion of the Atacama Large Millimeter/submillimeter Array (ALMA) has led to the ability to make observations with unprecedented resolution at sub-millimeter wavelengths, allowing novel probes of the ISM and kinematics of high-redshift galaxies. Because they are magnified by foreground galaxies or clusters, gravitationally lensed galaxies allow the highest possible spatial resolution to be obtained, and/or a sharp reduction in the observing time required to detect faint objects or spectral lines. These benefits have made lensed galaxies useful benchmark systems for ALMA, enabling a wide variety of science cases. Here I focus in particular on spatially-resolved observations of massive galactic outflows in the very distantz> 4 universe, summarizing plausible tracers of the cold molecular phase of these outflows. The prospects of jointJWSTand ALMA observations will be revolutionary, including the chance to take a full census of galactic outflows in multiple gas phases at matched spatial resolution.