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Recent Publications

  • Hondula DM, Balling RC, Vanos JK, Georgescu M.  2015.  Rising Temperatures, Human Health, and the Role of Adaptation. 1:144-154.
    Abstract Summary:

    There is near consensus in the scientific community that humans will experience higher future temperatures due to the ongoing accumulation of greenhouse gases in the atmosphere. The human response to this climatic change, particularly if accompanied by a surge in extreme heat events, is a key topic being addressed by scientists across many disciplines. In this article, we review recent (2012–2015) research on human health impacts of observed...

  • Abstract Summary:

    The formerly monotypic taxon, Hyalopale bispinosa Perkins 1985 (Cluysopetalinac), is comprised of a cryptic species complex from predominantly tropical embayments and island reefs of the Western Atlantic and Indo-Pacific Oceans. Hyalopale species are of meiofaunal size (length: 1-2.8mm), but considered non-interstitial, with the majority of species inhabiting a singular habitat of shallow littoral zones among algae and epifauna overlying...

  • Taylor J.RA, Scott N.I, Rouse GW.  2019.  Evolution of mantis shrimp telson armour and its role in ritualized fighting. 16
    Abstract Summary:

    Mantis shrimp possess both formidable weapons and impact-resistant armour that clash during ritualized combat. The telson is one of few biological structures known to withstand the repeated high impact forces of smashing mantis shrimp strikes, and it is hypothesized that this pairing of armour and weapon is associated with the evolution of telson sparring. We carried out a comparative analysis of telson impact mechanics across 15 mantis...

  • Inman B.G, Davies CJ, Torres C.R, Franks PJS.  2020.  Deformation of ambient chemical gradients by sinking spheres. 892
    Abstract Summary:

    A sphere sinking through a chemical gradient drags fluid with it, deforming the gradient. The sphere leaves a trail of gradient enhancement that persists longer than the velocity disturbance in the Reynolds , Froude and Peclet regime considered here. We quantify the enhancement of the gradient and the diffusive flux in the trail of disturbed chemical left by the passing sphere using a combination of numerical simulations and scaling analyses...

  • Abstract Summary:

    We use a multiple-scale expansion to average the wave action balance equation over an ensemble of sea-surface velocity fields characteristic of the ocean mesoscale and submesoscale. Assuming that the statistical properties of the flow are stationary and homogeneous, we derive an expression for a diffusivity tensor of surface-wave action density. The small parameter in this expansion is the ratio of surface current speed to gravity wave group...

  • Santana-Morales O., Cartamil D., Sosa-Nishizaki O., Zertuche-Chanes R., Hernandez-Gutierrez E., Graham J..  2020.  Artisanal elasmobranch fisheries of northwestern Baja California, Mexico. 46:1-18.
    Abstract Summary:

    Elasmobranch species composition and spatiotemporal variability can often be characterized from landing surveys of local fisheries, with important management implications. In the present study, we describe the elasmobranch landing composition of 4 major artisanal fishing ports in northwestern Baja California, Mexico. Sampling was conducted opportunistically between 1995 and 2010 and included an effort of 684 fishing days. Species composition...

  • Wangpraseurt D, You S, Azam F, Jacucci G, Gaidarenko O, Hildebrand M, Kühl M, Smith AG, Davey MP, Smith A et al..  2020.  Bionic 3D printed corals. 11:1748.
    Abstract Summary:

    Corals have evolved as optimized photon augmentation systems, leading to space-efficient microalgal growth and outstanding photosynthetic quantum efficiencies. Light attenuation due to algal self-shading is a key limiting factor for the upscaling of microalgal cultivation. Coral-inspired light management systems could overcome this limitation and facilitate scalable bioenergy and bioproduct generation. Here, we develop 3D printed bionic...

  • Park Y., Seong W., Gerstoft P.  2020.  Block-sparse two-dimensional off-grid beamforming with arbitrary planar array geometry. 147:2184-2191.
    Abstract Summary:

    For a sound field observed on a planar sensor array, compressive sensing (CS) reconstructs the two-dimensional (2D) direction-of-arrival (DOA) of multiple sources using a sparsity constraint. Conventional compressive beamforming methods suffer from grid mismatch, where true DOAs do not fall on the discretized angular search grid. This paper adopts a CS-based model, which can reconstruct block-sparse signals, and the model treats DOAs and the...

  • Sierks M.D, Kalansky J., Cannon F., Ralph FM.  2020.  Characteristics, origins, and impacts of summertime extreme precipitation in the Lake Mead watershed. 33:2663-2680.
    Abstract Summary:

    The North American monsoon (NAM) is the main driver of summertime climate variability in the U.S. Southwest. Previous studies of the NAM have primarily focused on the Tier I region of the North American Monsoon Experiment (NAME), spanning central-western Mexico, southern Arizona, and New Mexico. This study, however, presents a climatological characterization of summertime precipitation, defined as July-September (JAS), in the Lake Mead...

  • French B.J, Lim Y.W, Zgliczynski B.J, Edwards R.A, Rohwer F, Sandin SA.  2020.  Decoding diversity in a coral reef fish species complex with restricted range using metagenomic sequencing of gut contents. 10:3413-3423.
    Abstract Summary:

    Aim Identification of the processes that generate and maintain species diversity within the same region can provide insight into biogeographic patterns at broader spatiotemporal scales. Hawkfishes in the genus Paracirrhites are a unique taxon to explore with respect to niche differentiation, exhibiting diagnostic differences in coloration, and an apparent center of distribution outside of the Indo-Malay-Philippine (IMP) biodiversity hotspot...

  • Jagannathan A., Winters KB, Armi L..  2020.  The effect of a strong density step on blocked stratified flow over topography. 889
    Abstract Summary:

    The dynamical connection between topographic control and wave excitation aloft is investigated theoretically and numerically in the idealized setting of two-dimensional stratified flow over an isolated ridge. We consider a constant far upstream inflow with uniform stratification except for a sharp density step located above the height of the ridge crest. Below this step, the stratification is sufficiently strong that the low level flow is...

  • Abstract Summary:

    Impactors striking the Moon since the formation of its crust have left an indelible imprint on the lunar surface, in the guise of craters and associated impact rocks. The lunar crust has low intrinsic abundances of the highly siderophile elements (HSE: Re, Os, Ir, Ru, Pt, Rh, Pd, Au), at greater than 3000 times lower than in chondrite meteorites. Consequently, during impact, bolides with chondritic or differentiated iron-rich compositions...

  • Song HC, Byun G..  2020.  Extrapolating Green's functions using the waveguide invariant theory. 147:2150-2158.
    Abstract Summary:

    The broadband interference structure of sound propagation in a waveguide can be described by the waveguide invariant, beta, that manifests itself as striations in the frequency-range plane. At any given range (r), there is a striation pattern in frequency (omega), which is the Fourier transform of the multipath impulse response (or Green's function). Moving to a different range (r+Delta r), the same pattern is retained but is either stretched...

  • Ilango S.D, Weaver M., Sheridan P., Schwarz L., Clemesha R.ES, Bruckner T., Basu R., Gershunov A, Benmarhnia T..  2020.  Extreme heat episodes and risk of preterm birth in California, 2005-2013. 137
    Abstract Summary:

    Background: Preterm birth is a leading cause of infant morbidity and mortality. Identifying potentially modifiable triggers toward the end of gestation, such as extreme heat, can improve understanding of the role of acute stress on early deliveries and inform warning systems. In this study we examined the association between extreme heat, variously defined during the last week of gestation, and risk of preterm birth among mothers in...

  • Faktorova D., Nisbet R.ER, Robledo J.AF, Casacuberta E., Sudek L., Allen A.E, Ares M., Areste C., Balestreri C., Barbrook A.C et al..  2020.  Genetic tool development in marine protists: emerging model organisms for experimental cell biology.
    Abstract Summary:

    Diverse microbial ecosystems underpin life in the sea. Among these microbes are many unicellular eukaryotes that span the diversity of the eukaryotic tree of life. However, genetic tractability has been limited to a few species, which do not represent eukaryotic diversity or environmentally relevant taxa. Here, we report on the development of genetic tools in a range of protists primarily from marine environments. We present evidence for...

  • Jacobs-Palmer E., Gallego R., Ramon-Laca A., Kunselman E., Cribari K., Horwith M., Kelly R.P.  2020.  A halo of reduced dinoflagellate abundances in and around eelgrass beds. 8
    Abstract Summary:

    Seagrass beds provide a variety of ecosystem services, both within and outside the bounds of the habitat itself. Here we use environmental DNA (eDNA) amplicons to analyze a broad cross-section of taxa from ecological communities in and immediately surrounding eelgrass (Zostera marina). Sampling seawater along transects extending alongshore outward from eelgrass beds, we demonstrate that eDNA provides meter-scale resolution of communities in...

  • Abstract Summary:

    Several temperate marine taxa of the northern hemisphere follow a trans-Pacific biogeographic track with representatives on either side of the intervening boreal waters. Shelter-dwelling blenniiform fishes of the genus Neoclinus exhibit this trans-Pacific distribution pattern with three species in the eastern North Pacific and eight species in the western North Pacific. We reconstructed the phylogeny of the Neocliniini (Neoclinus and the...

  • Goffredi S.K, Tilic E., Mullin S.W, Dawson K.S, Keller A., Lee R.W, Wu F.B, Levin L.A, Rouse GW, Cordes E.E et al..  2020.  Methanotrophic bacterial symbionts fuel dense populations of deep-sea feather duster worms (Sabellida, Annelida) and extend the spatial influence of methane seepage. 6
    Abstract Summary:

    Deep-sea cold seeps are dynamic sources of methane release and unique habitats supporting ocean biodiversity and productivity. Here, we describe newly discovered animal-bacterial symbioses fueled by methane, between two species of annelid (a serpulid Laminatubus and sabellid Bispira) and distinct aerobic methane-oxidizing bacteria belonging to the Methylococcales, localized to the host respiratory crown. Worm tissue delta C-13 of -44 to -58...

  • Barnes J.J, McCubbin F.M, Santos A.R, Day JMD, Boyce J.W, Schwenzer S.P, Ott U., Franchi I.A, Messenger S., Anand M. et al..  2020.  Multiple early-formed water reservoirs in the interior of Mars.
    Abstract Summary:

    Mars's mantle is chemically heterogeneous and contains multiple primordial water reservoirs, according to an analysis of the hydrogen isotopic composition of minerals in Martian meteorites. The abundance and distribution of water within Mars through time plays a fundamental role in constraining its geological evolution and habitability. The isotopic composition of Martian hydrogen provides insights into the interplay between different water...

  • Shah V., Schild K., Lindeman M., Duncan D., Sutherland D., Cenedese C., Straneo F, Singh H..  2020.  Multi-sensor mapping for low contrast, quasi-dynamic, large objects. 5:470-476.
    Abstract Summary:

    This paper proposes a systems level solution for addressing the problem of mapping large moving targets with slow but complicated dynamics. Our approach utilizes the complementary nature of multiple sensing modalities. While this work is applicable to other domains we focus our efforts on mapping rotating and translating icebergs. Our solution involves a rigidly coupled combination of a line scan sensor - a subsurface multibeam sonar, with an...

  • Goto R., Monnington J., Sciberras M., Hirabayashi I., Rouse GW.  2020.  Phylogeny of Echiura updated, with a revised taxonomy to reflect their placement in Annelida as sister group to Capitellidae. 34:101-111.
    Abstract Summary:

    Echiura (commonly called spoon worms) are derived annelids that have an unsegmented sausage-shaped body with a highly extensible anterior end (i.e. a proboscis). Echiura currently contains two superfamilies: Echiurioidea (with Echiuridae, Urechidae and Thalassematidae) and Bonellioidea (with Bonelliidae, and Ikedidae). Ikedidae contains only Ikeda, which is distinctive in having a huge trunk, a highly elongate proboscis with stripes or dots,...

  • Kumagai J.A, Costa M.T, Ezcurra E., Aburto-Oropeza O.  2020.  Prioritizing mangrove conservation across Mexico to facilitate 2020 NDC ambition.
    Abstract Summary:

    There is a scale mismatch between mangrove conservation and carbon emission mitigation policies despite mangroves contributing disproportionally to global carbon sequestration. Using Mexico as a case study in the integration of these scales, we estimate mangrove carbon value and deforestation rates at the municipio (local government) scale and develop a prioritization model that indicates where to focus conservation efforts. By using...

  • Gibson P.B, Waliser D.E, Guan B., DeFlorio M.J, Ralph FM, Swain D.L.  2020.  Ridging associated with drought across the Western and Southwestern United States: Characteristics, trends, and predictability sources. 33:2485-2508.
    Abstract Summary:

    Persistent winter ridging events are a consistent feature of meteorological drought across the western and southwestern United States. In this study, a ridge detection algorithm is developed and applied on daily geopotential height anomalies to track and quantify the diversity of individual ridge characteristics (e.g., position, frequency, magnitude, extent, and persistence). Three dominant ridge types are shown to play important, but...

  • Pan H.L, Gao P.L, Zhou H.C, Ma R.X, Yang J.S, Zhang X..  2020.  Roughness analysis of sea surface from visible images by texture. 8:46448-46458.
    Abstract Summary:

    This paper presents a roughness analysis of sea surface from visible images by feature measurements of texture for the first time. The algorithms presented in this paper include six texture feature measurements of sea surface use gray level co-occurrence matrix, gray level-gradient co-occurrence matrix, Tamura texture feature, autocorrelation function, edge frequency and fractional Brownian motion autocorrelation. The empirical relationship...

  • Tunnicliffe V., Metaxas A., Le J., Ramirez-Llodra E., Levin L.A.  2020.  Strategic environmental goals and objectives: Setting the basis for environmental regulation of deep seabed mining. 114
    Abstract Summary:

    Deep seabed mining is a major new intersection of human enterprise and deep-ocean ecosystems. This paper reviews the concept and process for a holistic approach to planning environmental management in the deep sea based on Strategic Environmental Goals and Objectives. Strategic planning around the environment can establish a vision for the future condition of the ocean floor for which the International Seabed Authority (ISA) can draw on a...

  • Hindell M.A, Reisinger R.R, Ropert-Coudert Y., Huckstadt L.A, Trathan P.N, Bornemann H., Charrassin J.B, Chown S.L, Costa D.P, Danis B. et al..  2020.  Tracking of marine predators to protect Southern Ocean ecosystems.
    Abstract Summary:

    Tracking data from 17 marine predator species in the Southern Ocean are used to identify Areas of Ecological Significance, the protection of which could help to mitigate increasing pressures on Southern Ocean ecosystems. Southern Ocean ecosystems are under pressure from resource exploitation and climate change(1,2). Mitigation requires the identification and protection of Areas of Ecological Significance (AESs), which have so far not been...

  • England M.R, Polvani L.M, Sun L.T, Deser C..  2020.  Tropical climate responses to projected Arctic and Antarctic sea-ice loss.
    Abstract Summary:

    Arctic and Antarctic sea-ice extent are both projected to dramatically decline over the coming century. The effects of Arctic sea-ice loss are not limited to the northern high latitudes, and reach deep into the tropics. Yet little is known about the effects of future Antarctic sea-ice loss outside of the southern high latitudes. Here, using a fully coupled climate model, we investigate the tropical response to Antarctic sea-ice loss and...

  • Abstract Summary:

    This study provides an initial demonstration of a combined two-UAV (Unmanned Aerial Vehicle) system for measuring the underwater source levels and behavioural context of vocal and non-vocal marine mammal signals, information that is highly ecologically-relevant in terms of understanding how a species interacts and copes with conspecifics and its acoustic environment. Although the calls of a few species are well known, major gaps exist in our...

  • Abstract Summary:

    The absorption spectra of molecular organic chromophores in aqueous media are of considerable importance in environmental chemistry. In this work, the UV-vis spectra of benzoic acid (BA), the simplest aromatic carboxylic acid, in aqueous solutions at varying pH and in the presence of salts are measured experimentally. The solutions of different pH provide insights into the contributions from both the non-dissociated acid molecule and the...

  • Chang C., Smith SGL.  2020.  Axisymmetric contour dynamics for buoyant vortex rings. 887
    Abstract Summary:

    The present work uses a reduced-order model to study the motion of a buoyant vortex ring with non-negligible core size. Buoyancy is considered in both non-Boussinesq and Boussinesq situations using an axisymmetric contour dynamics formulation. The density of the vortex ring differs from that of the ambient fluid, and both densities are constant and conserved. The motion of the ring is calculated by following the boundary of the vortex core,...

  • Abstract Summary:

    The Gulf of Papua inner mid-shelf clinothem and lowstand deposits in Pandora Trough record sediment source and routing through the last sea-level cycle on 20 kyr cycles. Clay mineralogy tracked dispersal of sediment from the two types of rivers (wide versus narrow floodplains) to constrain the contributions of river systems to the Gulf of Papua clinothem and Pandora Trough deposits. Fly River sediment has higher illite:smectite than clays...

  • Barthel A., Agosta C., Little C.M, Hattermann T., Jourdain N.C, Goelzer H., Nowicki S., Seroussi H., Straneo F, Bracegirdle T.J.  2020.  CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica. 14:855-879.
    Abstract Summary:

    The ice sheet model intercomparison project for CMIP6 (ISMIP6) effort brings together the ice sheet and climate modeling communities to gain understanding of the ice sheet contribution to sea level rise. ISMIP6 conducts stand-alone ice sheet experiments that use space- and time-varying forcing derived from atmosphere-ocean coupled global climate models (AOGCMs) to reflect plausible trajectories for climate projections. The goal of this study...

  • Reher R., Kim H.W, Zhang C., Mao H.H, Wang M.X, Nothias L.F, Caraballo-Rodriguez A.M, Glukhov E., Teke B., Leao T. et al..  2020.  A convolutional neural network-based approach for the rapid annotation of molecularly diverse natural products. 142:4114-4120.
    Abstract Summary:

    This report describes the first application of the novel NMR-based machine learning tool "Small Molecule Accurate Recognition Technology" (SMART 2.0) for mixture analysis and subsequent accelerated discovery and characterization of new natural products. The concept was applied to the extract of a filamentous marine cyanobacterium known to be a prolific producer of cytotoxic natural products. This environmental Symploca extract was roughly...

  • Cook S.J, Christoffersen P., Todd J., Slater D., Chauche N..  2020.  Coupled modelling of subglacial hydrology and calving-front melting at Store Glacier, West Greenland. 14:905-924.
    Abstract Summary:

    We investigate the subglacial hydrology of Store Glacier in West Greenland, using the open-source, full-Stokes model Elmer/Ice in a novel 3D application that includes a distributed water sheet, as well as discrete channelised drainage, and a 1D model to simulate submarine plumes at the calving front. At first, we produce a baseline winter scenario with no surface meltwater. We then investigate the hydrological system during summer, focussing...

  • Dillon E.M, Lafferty K.D, McCauley D.J, Bradley D., Norris RD, Caselle JE, DiRenzo G.V, Gardner J.PA, O'Dea A..  2020.  Dermal denticle assemblages in coral reef sediments correlate with conventional shark surveys. 11:362-375.
    Abstract Summary:

    It is challenging to assess long-term trends in mobile, long-lived and relatively rare species such as sharks. Despite ongoing declines in many coastal shark populations, conventional surveys might be too fleeting and too recent to describe population trends over decades to millennia. Placing recent shark declines into historical context should improve management efforts as well as our understanding of past ecosystem dynamics. A new...

  • Abstract Summary:

    Natural gradient systems can be used to examine the vulnerability of deep-sea communities to climate change. The Gulf of California presents an ideal system for examining relationships between faunal patterns and environmental conditions of deep-sea communities because deep-sea conditions change from warm and oxygen-rich in the north to cold and severely hypoxic in the south. The Monterey Bay Aquarium Research Institute (MBARI) remotely...

  • Liu S, Ahmed S., Zhang C.G, Liu T.X, Shao C.L, Fang Y.W.  2020.  Diversity and antimicrobial activity of culturable fungi associated with sea anemone Anthopleura xanthogrammica. 44:41-46.
    Abstract Summary:

    Background: The main objective of this study was to isolate fungi associated with Anthopleura xanthogrammica and measure their antimicrobial and enzymatic activities. A total of 93 fungal strains associated with A. xanthogrammica were isolated in this study, of which 32 isolates were identified using both morphological characteristics and internal transcribed spacer (ITS) sequence analysis. The antibacterial activities of 32 fungal isolates...

  • Chyderiotis S., Benrnarhnia T., Beck F., Spilka S., Legleye S..  2020.  Does e-cigarette experimentation increase the transition to daily smoking among young ever-smokers in France? 208
    Abstract Summary:

    Introduction: According to multiple studies, e-cigarette use among adolescents is associated with subsequent smoking initiation. However, little is known about its effect on the transition from smoking initiation to daily smoking. Methods: Using retrospective data from a French national representative survey collected in 2017 (n = 39,115), we analyzed the role of ever using e-cigarettes on daily cigarette smoking status at 17 among ever...

  • Abstract Summary:

    The goal of this study was to assess the effect of college attendance on tobacco use among young adults and across subpopulations with disparities in tobacco use. Using a cohort of US youth ( < 18 years) who aged into young adulthood (18-24 years) in the Population Assessment of Tobacco and Health (2013-14, 2015-16, n = 3619) and propensity score matching we estimated the effect of college attendance on past 30-day use of cigarettes, e-...

  • Abstract Summary:

    There is urgent need for effective and efficient monitoring of marine fish populations. Monitoring eggs and larval fish may be more informative than that traditional fish surveys since ichthyoplankton surveys reveal the reproductive activities of fish populations, which directly impact their population trajectories. Ichthyoplankton surveys have turned to molecular methods (DNA barcoding & metabarcoding) for identification of eggs and...

  • Ozanich E., Gerstoft P, Niu H.Q.  2020.  A feedforward neural network for direction-of-arrival estimation. 147:2035-2048.
    Abstract Summary:

    This paper examines the relationship between conventional beamforming and linear supervised learning, then develops a nonlinear deep feed-forward neural network (FNN) for direction-of-arrival (DOA) estimation. First, conventional beamforming is reformulated as a real-valued, linear inverse problem in the weight space, which is compared to a support vector machine and a linear FNN model. In the linear formulation, DOA is quickly and accurately...

  • Abstract Summary:
  • Pendergrass A.G, Meehl G.A, Pulwarty R., Hobbins M., Hoell A., AghaKouchak A., Bonfils C.JW, Gallant A.JE, Hoerling M., Hoffmann D. et al..  2020.  Flash droughts present a new challenge for subseasonal-to-seasonal prediction. 10:191-199.
    Abstract Summary:

    Flash droughts, which develop over the course of weeks, are difficult to forecast given the current state of subseasonal-to-seasonal prediction. This Perspective offers operational and research definitions, places them in the broader context of climate and suggests avenues for future research. Flash droughts are a recently recognized type of extreme event distinguished by sudden onset and rapid intensification of drought conditions with...

  • Karion A., Callahan W., Stock M., Prinzivalli S., Verhulst K.R, Kim J., Salameh PK, Lopez-Coto I., Whetstone J..  2020.  Greenhouse gas observations from the Northeast Corridor tower network. 12:699-717.
    Abstract Summary:

    We present the organization, structure, instrumentation, and measurements of the Northeast Corridor greenhouse gas observation network. This network of tower-based in situ carbon dioxide and methane observation stations was established in 2015 with the goal of quantifying emissions of these gases in urban areas in the northeastern United States. A specific focus of the network is the cities of Baltimore, MD, and Washington, DC, USA, with a...

  • Dupouy C., Rottgers R., Tedetti M., Frouin R., Lantoine F., Rodier M., Martias C., Goutx M..  2020.  Impact of contrasted weather conditions on CDOM absorption/fluorescence and biogeochemistry in the Eastern Lagoon of New Caledonia. 8
    Abstract Summary:

    New Caledonia (Southwest Pacific), like all tropical Pacific Island countries, is impacted by weather events, climate change, and local anthropogenic forcing. Strong erosion of particles and dissolved organic matter (DOM) from ultramafic rocks, associated with trace metals dissemination (i.e., nickel, manganese and cobalt), potentially affects lagoon waters and coral reefs surrounding the main island. The CALIOPE (CALedonian Inherent Optical...

  • Koehnken L., Rintoul M.S, Goichot M., Tickner D., Loftus A.C, Acreman M.C.  2020.  Impacts of riverine sand mining on freshwater ecosystems: A review of the scientific evidence and guidance for future research. 36:362-370.
    Abstract Summary:

    Sand mining (used here as a generic term that includes mining of any riverine aggregates regardless of particle size) is a global activity that is receiving increasing media attention due to perceived negative environmental and social impacts. As calls grow for stronger regulation of mining, there is a need to understand the scientific evidence to support effective management. This paper summarizes the results of a structured literature...

  • Leibel S., Nguyen M., Brick W., Parker J., Ilango S., Aguilera R., Gershunov A, Benmarhnia T..  2020.  Increase in pediatric respiratory visits associated with Santa Ana wind-driven wildfire smoke and PM2.5 levels in San Diego County. 17:313-320.
    Abstract Summary:

    Rationale: There is significant evidence of increased healthcare utilization from cardiopulmonary causes in adults from exposure to wildfire smoke, but evidence in pediatric age groups is limited. Objectives: To quantify and examine the healthcare utilization effects of the December 2017 Lilac Fire in San Diego County among pediatric patients at the Rady Children's Hospital (RCH) emergency department and urgent care (UC) clinics. Methods:...

  • Li J., Gerstoft P, Siderius M., Fan J..  2020.  Inversion of head waves in ocean acoustic ambient noise. 147:1752-1761.
    Abstract Summary:

    The virtual head wave is produced through cross-correlation processing of signals containing the real, acoustic head wave. The virtual head wave has the same phase speed as the head wave, but the travel time is offset, thus the term virtual. The virtual head wave, like the real head wave, propagates in a direction corresponding to the seabed critical angle. The virtual head wave travel time varies with array depth and water column depth....

  • Abstract Summary:

    Myxosporea (Cnidaria: Myxozoa) are common fish parasites with complex life cycles that involve annelid hosts. Two economically important salmonid-infecting myxosporeans from rivers of the northwestern United States, Ceratonova shasta (Noble, 1950) and Parvicapsula minibicornis Kent et al., 1997, have life cycles that require a freshwater annelid host, identified previously as Manayunkia speciosa Leidy, 1859. This species was described...

  • Chen P, De Meulenaere E, Deheyn DD, Bandaru PR.  2020.  Iron redox pathway revealed in ferritin via electron transfer analysis. 10:4033.
    Abstract Summary:

    Ferritin protein is involved in biological tissues in the storage and management of iron - an essential micro-nutrient in the majority of living systems. While there are extensive studies on iron-loaded ferritin, its functionality in iron delivery is not completely clear. Here, for the first time, differential pulse voltammetry (DPV) has been successfully adapted to address the challenge of resolving a cascade of fast and co-occurring redox...