bluuebunny/crossref_metadata_2025_split huggingface dataset:
UTEP–EPW university–utility partnership: Concentrate enhanced–recovery reverse osmosis process for high water recovery from silica‐saturated desalination concentrates
Authors: Tarquin Anthony , Walker William Shane , Delgado Guillermo , Bustamante Angel 
Published: July 2019

AbstractSince the 1970s, The University of Texas at El Paso and El Paso Water have had a synergistic university–utility partnership, and in 2002, we began a sequence of investigations of enhanced recovery of water from silica‐saturated reverse osmosis concentrate: (a) two‐pass nanofiltration (NF) and reverse osmosis (RO) treatment, (b) lime softening for silica removal, (c) vibratory shear enhanced processing (VSEP), (d) continuous‐flow seawater RO treatment of brackish RO concentrate, and finally (e) high‐recovery concentrate enhanced‐recovery reverse osmosis (CERRO) process. Studies funded by El Paso Water, Texas Water Development Board, U.S. Bureau of Reclamation, and WateReuse Research Foundation were conducted at the Kay Bailey Hutchison (KBH) Plant in El Paso and the Brackish Groundwater National Desalination Research Facility in Alamogordo, NM, and showed that as much as 88% of the water could be recovered from silica‐saturated KBH concentrate using the CERRO process. Full‐scale implementation of the CERRO process at well sites in El Paso has resulted in 70%–75% recovery of RO concentrate with a specific energy consumption of 1.23 kWh/m3 (4.6 kWh/kgal) and total estimated cost of approximately $0.59/m3 ($2.25/kgal). Cost‐effective high‐recovery desalination technologies such as CERRO are essential for drought‐proof water supply in arid cities such as El Paso.Practitioner Points

This two‐decade UTEP‐EPW research partnership was sustained by a long‐term commitment to research and consistent financial support from EPW.

Universities can collaborate to leverage utility funding toward larger external grant funding to advance research and development in a win–win partnership.

The high‐recovery CERRO process was developed through multiple phases of concentrate management research, which would not have been possible without long‐term research commitment and risk tolerance from EPW.

CERRO systems are being implemented at full scale in El Paso to recover water from silica‐saturated RO concentrate at an estimated specific energy consumption of 1.23 kWh/m3 (4.6 kWh/kgal) and total amortized cost of $0.59/m3 ($2.25/kgal).
Multi‐attribute preferences for northern bobwhite habitat restoration among Texas landowners
Authors: Valdez Rene X. , Peterson Markus J. , Peterson Tarla Rai , Peterson M. Nils , Perez Robert M. 
Published: July 2019

ABSTRACTNorthern bobwhite (Colinus virginianus) abundance has declined range‐wide over the long term due to factors such as habitat loss and deterioration. Private land management is critical to bobwhite conservation because most bobwhites occur on private lands, but little research has been conducted regarding how private land managers and landowners make decisions about whether and how to restore northern bobwhite habitat. To begin addressing this deficit, we used a choice‐based conjoint approach to determine how Texas, USA, landowners and land managers (surveyed in November 2017) weigh the importance of northern bobwhite hunting opportunities, costs, and labor when making habitat restoration decisions. We also used a latent class analysis to break respondents into segments based on their valuations of these attributes. The results of our latent class analysis indicate that managers and landowners can be grouped into several segments, and most segments do not place a high value on bobwhite hunting opportunities, but instead are more interested in minimizing out‐of‐pocket costs and labor input. Bobwhite habitat restoration programs yielding cost shares ≥50%, labor inputs at ≤30 days/year, and likely coveys flushed per hunting day >4 broadly appealed to landowners; however, ensuring low labor costs was most important, particularly for pragmatic landowners. This indicates that policies minimizing labor inputs and maximizing cost shares may be preferred over increasing hunting opportunities. Finally, we discuss the management preferences and practices of the segment most interested in maximizing bobwhite hunting opportunities and potential outreach strategies for segments of opportunistic and pragmatic landowners who may be persuaded to manage for bobwhite habitat if they perceived this management as economically viable. © 2019 The Authors. Wildlife Society Bulletin Published by Wiley Periodicals, Inc.
Norway: Ethnic (In)equality in a Social-Democratic Welfare State
Authors: Reisel Liza , Hermansen Are Skeie , Kindt Marianne Takvam 
Published: July 2019

AbstractThis chapter offers a systematic review of social science research in Norway on ethnic inequalities in education, from the period 1980–2017. Three broad research traditions are identified: (1) Ethnic inequalities in educational enrolment, achievement, and attainment; (2) Immigrant families and ethnic minority communities as resources for educational careers; and (3) Curriculum, teacher instruction, and student experiences with inclusion and exclusion. Most of the research conducted in Norway focuses on describing and explaining the educational outcomes of children of immigrants from non-European countries, and is characterized by the use of quantitative research methods and access to rich population-wide registry data. Main groups studied in the qualitative traditions are typically children of immigrants from Pakistan, Vietnam, Sri-Lanka, Morocco and Turkey. This rich body of research is written in both Norwegian and English, and has developed in a context characterized by a close collaborative relationship between researchers and the government, in response to a growing concern about social cohesion within the Norwegian social-democratic welfare state.
On warped product bi-slant submanifolds of Kenmotsu manifolds
Authors: Uddin Siraj , Mihai Ion , Mihai Adela 
Published: July 2019

Chen (2001) initiated the study of CR-warped product submanifolds in Kaehler manifolds and established a general inequality between an intrinsic invariant (the warping function) and an extrinsic invariant (second fundamental form).In this paper, we establish a relationship for the squared norm of the second fundamental form (an extrinsic invariant) of warped product bi-slant submanifolds of Kenmotsu manifolds in terms of the warping function (an intrinsic invariant) and bi-slant angles. The equality case is also considered. Some applications of derived inequality are given.
Use of Dimensional Analysis in the X-, Y-, and Z-Axis to Predict Occurrence of Injury in Human Stampede
Authors: Alhadhira Abdullah , Molloy Michael S , Casasola Marcel , Sarin Ritu R , Massey Michael , Voskanyan Amalia , Ciottone G.R. 
Published: July 2019

ABSTRACTBackground:Human stampedes (HS) may result in mass casualty incidents (MCI) that arise due to complex interactions between individuals, collective crowd, and space, which have yet to be described from a physics perspective. HS events were analyzed using basic physics principles to better understand the dynamic kinetic variables that give rise to HS.Methods:A literature review was performed of medical and nonmedical sourced databases, Library of Congress databases, and online sources for the term human stampedes resulting in 25,123 references. Filters were applied to exclude nonhuman events. Retrieved references were reviewed for a predefined list of physics terms. Data collection involved recording frequency of each phrase and physics principle to give the final proportions of each predefined principle used a single-entry method for each of the 105 event reports analyzed. Data analysis was performed using the R statistics packages “tidyverse”, “psych”, “lubridate”, and “Hmisc” with descriptive statistics used to describe the frequency of each observed variable.Results:Of the 105 reports of HS resulting in injury or death reviewed, the following frequency of terms were found: density change in a limited capacity, 45%; XY-axis motion failure, 100%; loss of proxemics, 100%; deceleration with average velocity of zero, 90%; Z-axis displacement pathology (falls), 92%; associated structure with nozzle effect, 93%; and matched fluid dynamic of high pressure stagnation of mass gathering, 100%.Conclusions:Description or reference to principles of physics was seen in differing frequency in 105 reports. These include XY-axis motion failure of deceleration that leads to loss of human to human proxemics, and high stagnation pressure resulting in the Z-axis displacement effect (falls) causing injury and death. Real-time video-analysis monitoring of high capacity events or those with known nozzle effects for loss of proxemics and Z-axis displacement pathology offers the opportunity to prevent mortality from human stampedes.
Weak Ties in a Tangled Web? Relationships between the Political Residents of the English East India Company and their munshis, 1798–1818
Authors: WILKINSON CALLIE 
Published: July 2019

AbstractAlthough historians have long recognized the important role that Indians played in the English East India Company's operations, the focus has usually been on the mechanics of direct rule in ‘British’ India. Yet, the expertise of Indian cultural intermediaries was arguably even more important, as well as more contested, in the context of the Company's growing political influence over nominally independent Indian kingdoms. This article examines the relationships between the East India Company's political representatives (Residents) and their Indian secretaries (munshis) at Indian royal courts during a period of dramatic imperial expansion, from 1798 to 1818. The article considers how these relationships were conceptualized and debated by British officials, and reflects on the practical consequences of these relationships for the munshis involved. The tensions surrounding the role of the munshi in Residency business exemplify some of the practical dilemmas posed by the developing system of indirect rule in India, where the Resident had to decide how much responsibility to delegate to Indian experts better versed in courtly norms and practices, while at the same time maintaining his own image of authority and control. Although the Resident–munshi relationship was in many respects mutually beneficial, these relationships nevertheless spawned anxieties about transparency and accountability within the Company itself, as well as exciting resentments at court. Both Residents and munshis were required to negotiate between two political and institutional cultures, but it was the munshi who seems to have borne the brunt of the risks associated with this intermediary position.
Cognitive reserve attenuates age-related cognitive decline in the context of putatively accelerated brain ageing in schizophrenia-spectrum disorders
Authors: Van Rheenen Tamsyn E. , Cropley Vanessa , Fagerlund Birgitte , Wannan Cassandra , Bruggemann Jason , Lenroot Rhoshel K. , Sundram Suresh , Weickert Cynthia Shannon , Weickert Thomas W. , Zalesky Andrew , Bousman Chad A. , Pantelis Christos 
Published: July 2019

AbstractBackgroundIn schizophrenia, relative stability in the magnitude of cognitive deficits across age and illness duration is inconsistent with the evidence of accelerated deterioration in brain regions known to support these functions. These discrepant brain–cognition outcomes may be explained by variability in cognitive reserve (CR), which in neurological disorders has been shown to buffer against brain pathology and minimize its impact on cognitive or clinical indicators of illness.MethodsAge-related change in fluid reasoning, working memory and frontal brain volume, area and thickness were mapped using regression analysis in 214 individuals with schizophrenia or schizoaffective disorder and 168 healthy controls. In patients, these changes were modelled as a function of CR.ResultsPatients showed exaggerated age-related decline in brain structure, but not fluid reasoning compared to controls. In the patient group, no moderation of age-related brain structural change by CR was evident. However, age-related cognitive change was moderated by CR, such that only patients with low CR showed evidence of exaggerated fluid reasoning decline that paralleled the exaggerated age-related deterioration of underpinning brain structures seen in all patients.ConclusionsIn schizophrenia-spectrum illness, CR may negate ageing effects on fluid reasoning by buffering against pathologically exaggerated structural brain deterioration through some form of compensation. CR may represent an important modifier that could explain inconsistencies in brain structure – cognition outcomes in the extant literature.
Sidgwick's Dualism of Practical Reason, Evolutionary Debunking, and Moral Psychology
Authors: Andes Peter 
Published: July 2019

AbstractSidgwick's seminal textThe Methods of Ethicsleft off with an unresolved problem that Sidgwick referred to as the dualism of practical reason. The problem is that employing Sidgwick's methodology of rational intuitionism appears to show that there are reasons to favour both egoism and utilitarianism. Katarzyna de Lazari-Radek and Peter Singer offer a solution in the form of an evolutionary debunking argument: the appeal of egoism is explainable in terms of evolutionary theory. I argue that like rational prudence, rational benevolence is subject to debunking arguments and so problematic, but also – and more importantly – that debunking arguments are irrelevant in the debate over the dualism of practical reason on the view of reason and rational intuitionism that Lazari-Radek and Singer embrace. Either both egoism and utilitarianism are debunked, or neither are. If I am right, Sidgwick's dualism is left standing.
UNIQUENESS OF THE WELDING PROBLEM FOR SLE AND LIOUVILLE QUANTUM GRAVITY
Authors: McEnteggart Oliver , Miller Jason , Qian Wei 
Published: July 2019

AbstractWe give a simple set of geometric conditions on curves $\unicode[STIX]{x1D702}$, $\widetilde{\unicode[STIX]{x1D702}}$ in $\mathbf{H}$ from $0$ to $\infty$ so that if $\unicode[STIX]{x1D711}:\mathbf{H}\rightarrow \mathbf{H}$ is a homeomorphism which is conformal off $\unicode[STIX]{x1D702}$ with $\unicode[STIX]{x1D711}(\unicode[STIX]{x1D702})=\widetilde{\unicode[STIX]{x1D702}}$ then $\unicode[STIX]{x1D711}$ is a conformal automorphism of $\mathbf{H}$. Our motivation comes from the fact that it is possible to apply our result to random conformal welding problems related to the Schramm–Loewner evolution (SLE) and Liouville quantum gravity (LQG). In particular, we show that if $\unicode[STIX]{x1D702}$ is a non-space-filling $\text{SLE}_{\unicode[STIX]{x1D705}}$ curve in $\mathbf{H}$ from $0$ to $\infty$, and $\unicode[STIX]{x1D711}$ is a homeomorphism which is conformal on $\mathbf{H}\setminus \unicode[STIX]{x1D702}$, and $\unicode[STIX]{x1D711}(\unicode[STIX]{x1D702})$, $\unicode[STIX]{x1D702}$ are equal in distribution, then $\unicode[STIX]{x1D711}$ is a conformal automorphism of $\mathbf{H}$. Applying this result for $\unicode[STIX]{x1D705}=4$ establishes that the welding operation for critical ($\unicode[STIX]{x1D6FE}=2$) LQG is well defined. Applying it for $\unicode[STIX]{x1D705}\in (4,8)$ gives a new proof that the welding of two independent $\unicode[STIX]{x1D705}/4$-stable looptrees of quantum disks to produce an $\text{SLE}_{\unicode[STIX]{x1D705}}$ on top of an independent $4/\sqrt{\unicode[STIX]{x1D705}}$-LQG surface is well defined.
Two Types of Heat Wave in Korea Associated With Atmospheric Circulation Pattern
Authors: Yeo Sae‐Rim , Yeh Sang‐Wook , Lee Woo‐Seop 
Published: July 2019

AbstractThis study investigates heat wave variability over Korea during 1979‐2017. It is found that most of heat waves in Korea can be classified into two distinct types based on the spatial patterns of atmospheric circulation anomalies: the zonal wave (Z‐wave) type and the meridional wave (M‐wave) type. The Z‐wave type is accompanied by large‐scale atmospheric waves across the Eurasian continent, while the M‐wave type is associated with convective activities over the subtropical western North Pacific. The Z‐wave type occurs when the high‐pressure node of eastward propagating wave located around Korea and it seems that the associated wave energy could originate from North Atlantic Ocean. The M‐wave type, on the other hand, is driven by northward propagating wave train from subtropical western North Pacific to East Asia, which is triggered by anomalous convective activity over the subtropical western North Pacific. By analyzing thermodynamical as well as dynamical variables, detailed descriptions on the physical characteristics of two types of heat wave are presented in this study along with the possible implications for summer climate variability over Korea.
Elucidating Coastal Foredune Ecomorphodynamics in the U.S. Pacific Northwest via Bayesian Networks
Authors: Biel R. G. , Hacker S. D. , Ruggiero P. 
Published: July 2019

AbstractAs sea level rise and possible changes in storminess threaten coastal communities and infrastructure, the capacity for foredunes to provide protection depends on their geomorphology, which is determined by interactions between physical beach processes and vegetation. Here we use descriptive Bayesian network analyses to examine how sediment supply, beach characteristics, and two species of beachgrass (Ammophila arenaria and Ammophila breviligulata) alter foredune morphology and patterns of sand accretion on U.S. Pacific Northwest foredunes. We show that sediment supply and beach type primarily determine foredune morphology. Beachgrass density also influences foredune shape, but its effects differ among species: increasing density of A. arenaria was associated with steeper sloping dunes, whereas increasing density of A. breviligulata was associated with wider, more shallow sloping dunes. An examination of the change in foredune morphology over a 2‐year period found sand accretion was most strongly influenced by species‐specific patterns of vegetation growth and beach type. Specifically, A. breviligulata exhibited more lateral growth, resulting in greater sand accretion at the seaward margin of the foredune. In contrast, A. arenaria exhibited little lateral growth, resulting in comparatively more sand accretion near the foredune crest. Consequently, growth form‐generated sand accretion patterns resulted in steep, narrow A. arenaria‐dominated foredunes and shallow‐sloping, wider A. breviligulata‐dominated foredunes. These results illustrate that vegetation density and patterns of growth influence foredune morphology and its changes over time.
Space‐Time Evolution of Greenland Ice Sheet Elevation and Mass From Envisat and GRACE Data
Authors: Yang Yuande , Li Fei , Hwang Cheinway , Ding Minghu , Ran Jiangjun 
Published: July 2019

AbstractPrecise measurements of height changes (HCs) are important for improved estimates of mass balance of the Greenland Ice Sheet (GrIS). Here we determine 10 years of precise, high‐resolution HCs of the GrIS from Envisat radar altimeter using a subwaveform retracker and a modified repeat‐track method. The HCs show clear seasonal changes and monotonic declines over glaciers on the coasts such as Zachariae Isstrøm. We enhance mass change estimates from Gravity Recovery and Climate Experiment (GRACE) data using HCs and densities from interannual correlations between GRACE‐derived mass changes and HCs. We estimate the mass changes of eight drainage basins with our combined mass change. The largest mass change between 2002 and 2012 occurred in the northwest basin and the smallest in the northeast basin. We separate the ice and snow HC rates to derive a ratio (f) between them to characterize the relative importance of ice or snow to mass change. The snow HC rates are mostly positive over the GrIS, except on the margins of the west coast and Zachariae Isstrøm. The mean ice HC rate is −6.6 ± 3.9 cm/year over 2002–2006, which accelerated to −13.9 ± 2.4 cm/year over 2007–2012. The f factors show a clear post‐2006 ice dominance in the GrIS mass loss, particularly on the west coast, with a mean 91.4% ice contribution over 2002–2006, increasing to 94.5% over 2007–2012. This indicates increasing mass loss after 2006. A coincident radar altimeter and gravimetry mission is important for studying mass balance and separating snow and ice contributions over space and time.
Nutrient Controls on Export Production in the Southern Ocean
Authors: Arteaga Lionel A. , Pahlow Markus , Bushinsky Seth M. , Sarmiento Jorge L. 
Published: July 2019

We use observations from novel biogeochemical profiling floats deployed by the Southern Ocean Carbon and Climate Observations and Modeling program to estimate annual net community production (ANCP; associated with carbon export) from the seasonal drawdown of mesopelagic oxygen and surface nitrate in the Southern Ocean. Our estimates agree with previous observations in showing an increase in ANCP in the vicinity of the polar front (∼3 mol C m−2 y−1), compared to lower rates in the subtropical zone (≤ 1 mol C m−2 y−1) and the seasonal ice zone (<2 mol C m−2 y−1). Paradoxically, the increase in ANCP south of the subtropical front is associated with elevated surface nitrate and silicate concentrations, but decreasing surface iron. We hypothesize that iron limitation promotes silicification in diatoms, which is evidenced by the low silicate to nitrate ratio of surface waters around the Antarctic polar front. High diatom silicification increases the ballasting effect of particulate organic carbon and overall ANCP in this region. A model‐based assessment of our methods shows a good agreement between ANCP estimates based on oxygen and nitrate drawdown and the modeled downward organic carbon flux at 100 m. This agreement supports the presumption that net biological consumption is the dominant process affecting the drawdown of these chemical tracers and that, given sufficient data, ANCP can be inferred from observations of oxygen and/or nitrate drawdown in the Southern Ocean.
Constitutive Laws for Etnean Basement and Edifice Lithologies
Authors: Bakker Richard R. , Violay Marie E. S. , Vinciguerra Sergio , Fazio Marco , Benson Philip M. 
Published: July 2019

AbstractThe mechanical dynamics of volcanic systems can be better understood with detailed knowledge on strength of a volcanic edifice and subsurface. Previous work highlighting this on Mt. Etna has suggested that its carbonate basement could be a significant zone of widespread planar weakness. Here, we report new deformation experiments to better quantify such effects. We measure and compare key deformation parameters using Etna basalt, which is representative of upper edifice lava flows, and Comiso limestone, which is representative of the carbonate basement, under upper crustal conditions. These data are then used to derive empirical constitutive equations describing changes in rocks strength with pressure, temperature, and strain rate. At a constant strain rate of 10‐5 s‐1 and an applied confining pressure of 50 MPa, the brittle‐to‐ductile transitions were observed at 975 °C (Etna basalt) and 350 °C (Comiso limestone). For the basaltic edifice of Mt. Etna, the strength is described with a Mohr‐Coulomb failure criterion with μ ~ 0.704, C = 20 MPa. For the carbonate basement, strength is best described by a power law‐type flow in two regimes: a low‐T regime with stress exponent n ~ 5.4 and an activation energy Q ~ 170.6 kJ/mol and a high‐T regime with n ~ 2.4 and Q ~ 293.4 kJ/mol. We show that extrapolation of these data to Etna's basement predicts a brittle‐to‐ductile transition that corresponds well with the generally observed trends of the seismogenic zone underneath Mt. Etna. This in turn may be useful for future numerical simulations of volcano‐tectonic deformation of Mt. Etna, and other volcanoes with limestone basements.