bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental investigation of transition process from nucleate boiling to microbubble emission boiling under transient heating modes
Authors: Tang Jiguo , Sun Licheng , Du Min , Liu Hongtao , Mo Zhengyu , Bao Jingjing
Published: January 2019

This study investigated the transition from nucleate boiling to microbubble emission boiling (MEB) on a small heating surface under transient heating modes. During the short unstable boiling process after critical heat flux with a rapid increase in wall temperature, capillary waves were observed over the vapor film at subcooling of 30–40 K. The visualization results in this process demonstrated that the partial collapse of vapor film induced strong jet toward the heating surface and therefore avoided complete dryout thereon. This mechanism certainly plays an important role in the transition to stable MEB. Further comparison between the wall temperature and boiling states indicates that the wall temperature at onset point of stable MEB is determined by the predominance of MEB mode over film boiling in the transition process. Effects of liquid subcooling and surface oxidation on the transition process were also investigated at the same time.
Prevalence and risk factors for Down syndrome: A hospital‐based single‐center study in Western Mexico
Authors: Corona‐Rivera Jorge Román , Martínez‐Macías Francisco Javier , Bobadilla‐Morales Lucina , Corona‐Rivera Alfredo , Peña‐Padilla Christian , Rios‐Flores Izabel Maryalexandra , Flores‐Guevara Paola Alejandra , Orozco‐Vela Mireya , Aranda‐Sánchez Cristian Irela , Brukman‐Jiménez Sinhué Alejandro
Published: January 2019

Although Hispanics of Mexican origin in the United States have been identified as a population with a particularly higher rate of Down syndrome (DS), there is a paucity of studies concerning this topic in Mexico. The aim of this study was to determine the prevalence and risk factors for DS in a population from Western Mexico. For prevalence, 230 liveborn infants with DS were included from a total of 89,332 births occurring during the period 2009–2017 at the Dr. Juan I. Menchaca Civil Hospital of Guadalajara (Mexico). In order to evaluate potential DS risks, a case‐control study was conducted among 633 newborns, including those 211 DS patients with full trisomy 21 (cases) and 422 infants without birth defects (controls). Data were analyzed using multivariable logistic regression analysis. The overall prevalence for DS was 25.7 per 10,000 (95% confidence interval [95% CI]: 22.4–29.1). Patients with DS had a significantly higher risk for family history of DS in distant relatives (adjusted odds ratio [aOR] = 4.4, 95% CI: 2.5–7.7), relatives with thyroid disease (aOR = 2.3, 95% CI: 1.2–4.0), maternal age ≤ 19 years (aOR = 5.1, 95% CI: 2.7–9.6) or ≥ 35 years (aOR = 3.3, 95% CI: 1.5–6.9), paternal age ≤ 19 years (aOR = 3.5, 95% CI: 1.7–7.4), pre‐pregnancy BMI ≥ 25 kg/m2 (aOR = 1.6, 95% CI: 1.0–2.4), and pre‐pregnancy alcohol consumption (aOR = 1.8, 95% CI: 1.1–2.9). The identified risks in family history, and previously mentioned nutritional disadvantages were associated with DS in our sample and probably also to its increased prevalence in our population.
Mammal extinctions and the increasing isolation of humans on the tree of life
Authors: Pavoine Sandrine , Bonsall Michael B. , Davies T. Jonathan , Masi Shelly
Published: January 2019

A sixth great mass extinction is ongoing due to the direct and indirect effects of human pressures. However, not all lineages are affected equally. From an anthropocentric perspective, it is often purported that humans hold a unique place on Earth. Here, we show that our current impacts on the natural world risk realizing that expectation. We simulated species loss on the mammalian phylogenetic tree, informed by species current extinction risks. We explored howHomo sapienscould become isolated in the tree if species currently threatened with extinction disappeared. We analyzed correlates of mammal extinctions risks that may drive this isolation pattern. We show that, within mammals, and more particularly within primates, extinction risks increase with the number of known threat types, and decrease with geographic range size. Extinctions increase with species body mass, trophic level, and the median longitudinal extent of each species range in mammals but not within primates. The risks of extinction are frequently high amongH. sapiensclose relatives. Pruning threatened primates, including apes (Hominidae, Hylobatidae), from the tree of life will lead to our species being among those with the fewest close relatives. If no action is taken, we will thus not only lose crucial biodiversity for the preservation of Earth ecosystems, but also a key living reference to what makes us human.
A practical data driven approach for the deployment of WSNs on realistic terrains
Authors: Zafer Mostefa , Senouci Mustapha Reda , Aissani Mohamed
Published: January 2019

Existing works on relay nodes placement in two‐tiered wireless sensor networks (WSNs) assume two‐dimensional terrains and ignore completely the impact of the topography on the communication quality. In contrast, this paper addresses constrained versions of the relay nodes placement problem while adopting more realistic assumptions. To ensure the connectivity of a two‐tiered WSN deployed on a three‐dimensional terrain, the proposed approach determines the relay nodes positions by analyzing the data extracted from the terrain topography. The main idea is to consider a concrete positions constraint, by requiring the placement of relay nodes only at the terrain crest points, which have a relatively wide visibility on the terrain and are well exposed to the sun. This allows minimizing the number of relay nodes required to ensure the connectivity, reduces the impact of the topography on the wireless communication quality, and offers the opportunity to equip the relay nodes with solar panels to extend their lifetimes. Based on this idea and inspired by the One‐Step constrained Relay nodes Placement (OSRP) and Realistic constrained Relay nodes PLacement (RRPL) approaches, three algorithms, called 3D‐OSRP (3D One‐Step constrained Relay nodes Placement), 3D‐RRPL‐v1 (3D Realistic constrained Relay nodes PLacement version‐1), and 3D‐RRPL‐v2 (3D Realistic constrained Relay nodes PLacement version‐2), are designed, implemented, and evaluated by extensive simulations on realistic three‐dimensional terrains. Obtained results demonstrate the relevance of considering positions constraint.
The infraorbital artery: From descriptive anatomy to mucosal perforator flap design
Authors: Hufschmidt Katharina , Camuzard Olivier , Balaguer Thierry , Baqué Patrick , de Peretti Fernand , Santini Joseph , Bronsard Nicolas , Qassemyar Quentin
Published: January 2019

Background

The terminal and perforating branches of the infraorbital artery (IOA) are poorly described. Its anatomical situation and mucosal component could provide an interesting donor site for mucosal reconstruction. The aims of the following study were to establish an anatomical description and to assess the feasibility of mucosal perforator flaps for eyelid and nasal reconstruction.

Methods

Twenty‐three fresh cadaver hemifaces were studied in order to perform an IOA anatomical classification by recording the artery's characteristics, its course, number, type, and diameter of terminal branches. We also examined the feasibility of local flaps for facial reconstruction.

Results

We highlighted five different types of courses. All cadavers had at least one superior vestibular branch with a caliber of ≥0.4 mm. A pedicled flap arising from the vestibular branch was raised in all dissections.

Conclusion

The vestibular perforator flap based on the IOA seems to be a reliable flap in reconstruction of mucosal defects.
Reliable and energy‐efficient emergency transmission in wireless sensor networks
Authors: Singanamalla Vijayakumar , Patan Rizwan , Khan Mohammad S. , Kallam Suresh
Published: January 2019

In the remote system, wireless sensors networks are used to forward messages of specific needs by minimizing energy consumption. This process needs to maintain the hubs with various activities of the network. The network components are suitable for conventional packet transmission, but not for emergency information transmission as it consistently requires high‐quality links. In emergency information transmission, more cooperation is required by nodes, but at the same time, we must minimize the energy required in emergency transmission to form topology construction, partitioning, relaying nodes clustering, and then cluster the total number of nodes. In this paper, proposed an energy‐aware emergency transmission scheme which decreases the hub's energy utilization maintained between 8% and 11% in reliable data transmission, increase transmission accuracy by 25%, and packet transmission delay decreases by 600 to 700 milliseconds while increasing the number of clusters in topology.
The utility of superb‐microvascular imaging for evaluating the full length of carotid artery stents
Authors: Hagiwara Yuta , Shimizu Takahiro , Hoshino Masashi , Takao Naoki , Araga Takashi , Hasegawa Yasuhiro
Published: January 2019

Transoral carotid ultrasonography (TOCU) is a powerful tool for evaluating internal carotid artery (ICA) lesions located from the carotid bifurcation up to the level of the second cervical vertebra. Superb‐microvascular imaging (SMI) is a new Doppler imaging technique whose algorithm analyze tissue movements to minimize motion artifacts by eliminating clutter signals. SMI significantly reduces motion artifacts and allows visualization of low‐velocity blood flow even in minute vessels. TOCU with SMI produces clear intraluminal image of the distal extracranial ICA, which is not possible with conventional carotid artery ultrasonography (CUS). CUS with SMI and TOCU with SMI were performed in a patient with a history of carotid artery stenting for symptomatic left ICA stenosis, providing images of the full length of the stents with intimal hyperplasia.
“Bright Band Sign” A Grayscale Ultrasound Finding in Hepatic Infarction
Authors: Whang Gilbert , Chopra Shefali , Tchelepi Hisham
Published: January 2019

Hepatic infarction is infrequent due to the dual blood supply of the liver and the compensatory relationship between the hepatic artery and portal vein. Most cases occur in liver transplants due to vascular complications. Grayscale sonography combined with color and spectral wave Doppler can assess for vessel patency and parenchymal abnormalities. Liver infarctions appear as hypoechoic nonvascular regions on conventional and Doppler sonography. Here, we describe a grayscale ultrasound feature within liver infarctions in 2 liver transplants and in 1 native liver due to iatrogenic complication. This feature is similar to those described recently in the literature within splenic infarcts.
Surgical anatomy of ovine facial and hypoglossal nerves for facial nerve reconstruction and regeneration research: An experimental study in sheep
Authors: Niimi Yosuke , Matsumine Hajime , Fukuda Satoshi , Salsbury John R. , Niimi Yu , Herndon David N. , Prough Donald S. , Enkhbaatar Perenlei
Published: January 2019

Background

The lack of a clinically relevant animal model for facial nerve research is a challenge. The goal of this study was to investigate the anatomy of the ovine facial and hypoglossal nerves to establish a clinically relevant facial nerve research model.

Materials and methods

Six cadaver female Merino sheep (33.5 ± 3 kg, approximately 3 years old) and three anesthetized female Merino sheep (30 ± 3 kg, approximately 3 years old) were used. In cadaver sheep, a right side preauricular to submandibular incision was made. Dimensions of the face, neck, and length of facial nerve were measured. In anesthetized sheep, each facial nerve branch and hypoglossal nerve in the right side was stimulated. The number of myelinated fibers was analyzed histologically.

Results

The facial nerve exited the stylomastoid foramen and divided into upper and lower branches. The lower branch then subdivided into buccal and marginal mandibular branches. The hypoglossal nerve was observed behind the digastric posterior belly. Stimulation revealed the temporal, zygomatic, buccal, marginal mandibular, and cervical branch innervated the forehead, orbicularis, upper lip and nasal, lower lip, and platysma, respectively. The number of myelinated fibers of the main trunk, upper, buccal, lower branch, and hypoglossal nerve was 11 350 ± 1851, 4766 ± 1000, 5107 ± 218, 3159 ± 450, and 7604 ± 636, respectively. The length of the main trunk was 9.2 ± 1.5 mm, and distance of the marginal mandibular branch to the facial artery was 94 ± 6.8 mm.

Conclusions

Due to the similarity in nerve anatomy and innervation, the ovine model can be used as a clinically relevant and suitable model for facial nerve research.
Emerging therapeutic potential of group 2 innate lymphoid cells in acute kidney injury
Authors: Cameron Guy J M , Jiang Simon H , Loering Svenja , Deshpande Aniruddh V , Hansbro Philip M , Starkey Malcolm R
Published: January 2019

Acute kidney injury (AKI) remains a global challenge and, despite the availability of dialysis and transplantation, can be fatal. Those that survive an AKI are at increased risk of developing chronic kidney disease and end stage renal failure. Understanding the fundamental mechanisms underpinning the pathophysiology of AKI is critical for developing novel strategies for diagnosis and treatment. A growing body of evidence indicates that amplifying type 2 immunity may have therapeutic potential in kidney injury and disease. Of particular interest are the recently described subset of innate immune cells, termed group 2 innate lymphoid cells (ILCs). Group 2 ILCs are crucial tissue‐resident immune cells that maintain homeostasis and regulate tissue repair at multiple organ sites, including the kidney. They are critical mediators of type 2 immune responses following infection and injury. The existing literature suggests that activation of group 2 ILCs and production of a local type 2 immune milieu is protective against renal injury and associated pathology. In this review, we describe the emerging role for group 2 ILCs in renal homeostasis and repair. We provide an in‐depth discussion of the most recent literature that use preclinical models of AKI and assess the therapeutic effect of modulating group 2 ILC function. We debate the potential for targeting these cells as novel cellular therapies in AKI and discuss the implications for future studies and translation. Copyright © 2019 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
Investigation of a sugar N‐formyltransferase from the plant pathogen Pantoea ananatis
Authors: Hofmeister Daniel L. , Thoden James B. , Holden Hazel M.
Published: January 2019

Pantoea ananatis is a Gram‐negative bacterium first recognized in 1928 as the causative agent of pineapple rot in the Philippines. Since then various strains of the organism have been implicated in the devastation of agriculturally important crops. Some strains, however, have been shown to function as non‐pathogenic plant growth promoting organisms. To date, the factors that determine pathogenicity or lack thereof between the various strains are not well understood. All P. ananatis strains contain lipopolysaccharides, which differ with respect to the identities of their associated sugars. Given our research interest on the presence of the unusual sugar, 4‐formamido‐4,6‐dideoxy‐d‐glucose, found on the lipopolysaccharides of Campylobacter jejuni and Francisella tularensis, we were curious as to whether other bacteria have the appropriate biosynthetic machinery to produce these unique carbohydrates. Four enzymes are typically required for their biosynthesis: a thymidylyltransferase, a 4,6‐dehydratase, an aminotransferase, and an N‐formyltransferase. Here, we report that the gene SAMN03097714_1080 from the P. ananatis strain NFR11 does, indeed, encode for an N‐formyltransferase, hereafter referred to as PA1080c. Our kinetic analysis demonstrates that PA1080c displays classical Michaelis–Menten kinetics with dTDP‐4‐amino‐4,6‐dideoxy‐d‐glucose as the substrate and N10‐formyltetrahydrofolate as the carbon source. In addition, the X‐ray structure of PA1080c, determined to 1.7 Å resolution, shows that the enzyme adopts the molecular architecture observed for other sugar N‐formyltransferases. Analysis of the P. ananatis NFR11 genome suggests that the three other enzymes necessary for N‐formylated sugar biosynthesis are also present. Intriguingly, those strains of P. ananatis that are non‐pathogenic apparently do not contain these genes.
Dual-wavelength bidirectional pumped high-power Raman fiber laser
Authors: Wang Zehui , Xiao Qirong , Huang Yusheng , Tian Jiading , Li Dan , Yan Ping , Gong Mali
Published: January 2019

In this paper, we reported both the experimental demonstration and theoretical analysis of a Raman fiber laser based on a master oscillator–power amplifier configuration. The Raman fiber laser adopted the dual-wavelength bidirectional pumping configuration, utilizing 976 nm laser diodes and 1018 nm fiber lasers as the pump sources. A 60-m-long $25/400~\unicode[STIX]{x03BC}\text{m}$ ytterbium-doped fiber was used to convert the power from 1070 to 1124 nm, realizing a maximum power output of 3.7 kW with a 3 dB spectral width of 6.8 nm. Moreover, we developed a multi-frequency model taking into consideration the Raman gain spectrum and amplified spontaneous emission. The calculated spectral broadening of both the forward and backward laser was in good agreement with the experimental results. Finally, a 1.5 kW, 1183 nm second-order Raman fiber laser was further experimentally demonstrated by the addition of a 70-m-long germanium-doped passive fiber.
The singularity method in unsteady Stokes flow: hydrodynamic force and torque around a sphere in time-dependent flows
Authors: Hsiao C. H. , Young D. L.
Published: January 2019

The equations for the hydrodynamic force and torque acting on a sphere in unsteady Stokes equations under different flow conditions are solved analytically by means of the singularity method. This analytical technique is based on the combination of suitable singularity solutions (also called fundamental solutions) such as primary Stokeslets, potential dipoles, or higher-order singularities, to construct the flow field. The different flows considered here include four examples: (1) a rotating sphere in a viscous flow, (2) a stationary sphere in a time-dependent shear flow, (3) a sphere with free rotation in a simple shear flow, as well as (4) a stationary sphere in a time-dependent axisymmetric parabolic flow. Our paradigm is to derive the fundamental solutions in unsteady Stokes flows and to express the solutions as a convolution integral in time using the time–space fundamental solutions. Next the Laplace transform is used to determine the strength of the distributed singularities that induce the velocity field around a stationary or rotating sphere. Then we use the computed strength of the singularities to derive hydrodynamic force and torque. In particular, for the problem of a stationary sphere in unsteady axisymmetric parabolic flow, our solution for the time-dependent force acting on the sphere consists of five force components – the well-known quasi-steady Stokes drag, the added mass term, the Basset historic (memory) force, and two additional memory forces. The first additional memory force due to the rate change of velocity, we find, is similar to the result obtained by Lawrence & Weinbaum (J. Fluid Mech., vol. 171, 1986, pp. 209–218) for the ostensibly unrelated setting of a slightly deformed translating spheroid. The second additional memory force comes from the effect of the rate change of acceleration and is found for the first time in this study to the best of our knowledge.
Approximations, ghosts and derived equivalences
Authors: Chen Yiping , Hu Wei
Published: January 2019

Approximation sequences and derived equivalences occur frequently in the research of mutation of tilting objects in representation theory, algebraic geometry and noncommutative geometry. In this paper, we introduce symmetric approximation sequences in additive categories and weaklyn-angulated categories which include (higher) Auslander-Reiten sequences (triangles) and mutation sequences in algebra and geometry, and show that such sequences always give rise to derived equivalences between the quotient rings of endomorphism rings of objects in the sequences modulo some ghost and coghost ideals.
On triangle equivalences of stable categories
Authors: Di Zhenxing , Liu Zhongkui , Wei Jiaqun
Published: January 2019

We apply the Auslander–Buchweitz approximation theory to show that the Iyama and Yoshino's subfactor triangulated category can be realized as a triangulated quotient. Applications of this realization go in three directions. Firstly, we recover both a result of Iyama and Yang and a result of the third author. Secondly, we extend the classical Buchweitz's triangle equivalence from Iwanaga–Gorenstein rings to Noetherian rings. Finally, we obtain the converse of Buchweitz's triangle equivalence and a result of Beligiannis, and give characterizations for Iwanaga–Gorenstein rings and Gorenstein algebras.
An application of the theorem on Sums to viscosity solutions of degenerate fully nonlinear equations
Authors: Ferrari Fausto
Published: January 2019

We prove Hölder continuous regularity of bounded, uniformly continuous, viscosity solutions of degenerate fully nonlinear equations defined in all of ℝn space. In particular, the result applies also to some operators in Carnot groups.
Frame and direction mappings for surfaces in ℝ3
Authors: Bruce J. W. , Tari F.
Published: January 2019

We study frames in ℝ3 and mapping from a surface M in ℝ3 to the space of frames. We consider in detail mapping frames determined by a unit tangent principal or asymptotic direction field U and the normal field N. We obtain their generic local singularities as well as the generic singularities of the direction field itself. We show, for instance, that the cross-cap singularities of the principal frame map occur precisely at the intersection points of the parabolic and subparabilic curves of different colours. We study the images of the asymptotic and principal foliations on the unit sphere by their associated unit direction fields. We show that these curves are solutions of certain first order differential equations and point out a duality in the unit sphere between some of their configurations.
Evolutes and focal surfaces of framed immersions in the Euclidean space
Authors: Honda Shun'ichi , Takahashi Masatomo
Published: January 2019

We consider a smooth curve with singular points in the Euclidean space. As a smooth curve with singular points, we have introduced a framed curve or a framed immersion. A framed immersion is a smooth curve with a moving frame and the pair is an immersion. We define an evolute and a focal surface of a framed immersion in the Euclidean space. The evolutes and focal surfaces of framed immersions are generalizations of each object of regular space curves. We give relationships between singularities of the evolutes and of the focal surfaces. Moreover, we consider properties of the evolutes, focal surfaces and repeated evolutes.
Dry-forest tree species with large seeds and low stem specific density show greater survival under drought
Authors: Krishnan Lalitha , Barua Deepak , Sankaran Mahesh
Published: January 2019

Tree establishment in tropical dry forests is constrained by drought-related seedling mortality during early stages of recruitment. Predicted increases in the duration of growing-season droughts in the future pose a significant threat to these ecosystems that could significantly alter their vegetation structure and composition. Here, we examined drought tolerance in seedlings of seven common dry-forest tree species from the Indian subcontinent. We conducted a dry-down experiment on 3-wk-old seedlings, and asked whether the key plant functional traits, specific leaf area (SLA), leaf dry matter content (LDMC), seed size and stem specific density (SSD) were good predictors of seedling growth under well-watered conditions, and survival during drought. Seedlings displayed substantial drought tolerance with most seedlings surviving for more than 2 wk under protracted drought. Seed size in combination with SLA predicted seedling growth under well-watered conditions and seed size predicted survival under drought. In contrast to our expectations, seedlings with lower SSD survived for longer without water. Our results suggest that dry-forest species will be differentially affected by the predicted increases in the duration of growing-season droughts, and detrimental effects will be more severe for species with smaller seeds.
A SPECTRUM OF SERIES–PARALLEL GRAPHS WITH MULTIPLE EDGE EVOLUTION
Authors: Mahmoud Hosam M.
Published: January 2019

We discuss a rich family of directed series–parallel (SP) graphs grown by the simultaneous random series or parallel development of multiple edges. The family portrays a spectrum that spans a wide range of SP graphs: from simple models, where only as few as one edge is chosen for evolution at each discrete point in time, to complex hierarchical lattice networks grown by a take-all strategy, where all the edges in the existing network are developed.

The family of SP graphs we discuss is grown from an initial seed graph with τ0 edges under an arbitrary building sequence, $\{k_{n}\}_{n=1}^{\infty}$, of nonnegative integers (with $k_n \le \tau _0 + \sum\nolimits_{i = 1}^n {k_i} $, for arbitrary τ0 ≥ 1), that specifies the number of edges subjected to evolution at time n. We study the average north polar degree and show that we can go beyond averages to strong laws. We also find the exact average number of critical edges. The asymptotics of the critical edges are facilitated under the regularity condition that $k_n/\sum\nolimits_{i = 1}^n {k_i} $ converges to a constant (as n → ∞), a natural condition easily met by practical strategies, such as single-edge evolution and take-all choice, and much in between.
Diamond Anvil Cell Partitioning Experiments for Accretion and Core Formation: Testing the Limitations of Electron Microprobe Analysis
Authors: Jennings Eleanor S. , Wade Jon , Laurenz Vera , Petitgirard Sylvain
Published: January 2019

Metal–silicate partitioning studies performed in high-pressure, laser-heated diamond anvil cells (DAC) are commonly used to explore element distribution during planetary-scale core–mantle differentiation. The small run-products contain suitable areas for analysis commonly less than tens of microns in diameter and a few microns thick. Because high spatial resolution is required, quantitative chemical analyses of the quenched phases is usually performed by electron probe microanalysis (EPMA). Here, EPMA is being used at its spatial limits, and sample thickness and secondary fluorescence effects must be accounted for. By using simulations and synthetic samples, we assess the validity of these measurements, and find that in most studies DAC sample wafers are sufficiently thick to be characterized at 15 kVacc. Fluorescence from metal-hosted elements will, however, contaminate silicate measurements, and this becomes problematic if the concentration contrast between the two phases is in excess of 100. Element partitioning experiments are potentially compromised; we recommend simulating fluorescence and applying a data correction, if required, to such DAC studies. Other spurious analyses may originate from sources external to the sample, as exemplified by 0.5 to >1 wt% of Cu arising from continuum fluorescence of the Cu TEM grid the sample is typically mounted on.
What do we know about parasites of wildlife in high biodiversity areas with anthropogenic disturbance? The special case of Mexico
Authors: Muñoz-García C. I. , Berriatua E. , Martínez-Carrasco C.
Published: January 2019

The continual rise of anthropogenic disturbance of ecosystems has been associated with an increasing incidence of emerging diseases. The largest amount of data on emerging diseases relates to bacterial and viral pathogens, but there is a lack of parasite data, especially from wildlife. Monitoring wildlife parasitic diseases should be considered a priority, especially in high biodiversity regions with strong anthropogenic impacts, like Mexico, where the wildlife/livestock/human interface is associated with increased risk of disease transmission. Mexico belongs to the top-ten megadiverse countries and is located between two biogeographic regions. This situation makes Mexico a favourable region for the spillover of animal pathogens to human beings, causing pandemics, such as the one recently caused by influenza virus A (H1N1). The current state of knowledge of Mexican wildlife parasites is scarce and focuses mainly in Neotropical fauna. Moreover, this knowledge is heterogeneous for different parasite groups, especially concerning their pathologic effects and epidemiology. The goals of this review are to compile information on Mexican wildlife parasites and to identify knowledge gaps in order to stimulate research on pending epidemiological, public health, ecological and pathological areas, and to encourage the creation of more specialized groups from the perspective of the One-Health concept.
Mannheimia haemolyticain bovine respiratory disease: immunogens, potential immunogens, and vaccines
Authors: Confer Anthony W. , Ayalew Sahlu
Published: January 2019

Mannheimia haemolyticais the major cause of severe pneumonia in bovine respiratory disease (BRD). EarlyM. haemolyticabacterins were either ineffective or even enhanced disease in vaccinated cattle, which led to studies of the bacterium's virulence factors and potential immunogens to determine ways to improve vaccines. Studies have focused on the capsule, lipopolysaccharide, various adhesins, extracellular enzymes, outer membrane proteins, and leukotoxin (LKT) resulting in a strong database for understanding immune responses to the bacterium and production of more efficacious vaccines. The importance of immunity to LKT and to surface antigens in stimulating immunity led to studies of individual native or recombinant antigens, bacterial extracts, live-attenuated or mutant organisms, culture supernatants, combined bacterin-toxoids, outer membrane vesicles, and bacterial ghosts. Efficacy of several of these potential vaccines can be shown following experimentalM. haemolyticachallenge; however, efficacy in field trials is harder to determine due to the complexity of factors and etiologic agents involved in naturally occurring BRD. Studies of potential vaccines have led current commercial vaccines, which are composed primarily of culture supernatant, bacterin-toxoid, or live mutant bacteria. Several of those can be augmented experimentally by addition of recombinant LKT or outer membrane proteins.
Effectiveness of spiritual care using spiritual pain assessment sheet for advanced cancer patients: A pilot non-randomized controlled trial
Authors: Ichihara Kaori , Ouchi Sayako , Okayama Sachiko , Kinoshita Fukiko , Miyashita Mitsunori , Morita Tatsuya , Tamura Keiko
Published: January 2019

Objective

To obtain preliminary knowledge to design a randomized controlled trial to clarify the effects of spiritual care using the Spiritual Pain Assessment Sheet (SpiPas).

Method

The study was designed as a nonrandomized controlled trial. The study took place between January 2015 and July 2015 in a hematology and oncology ward and two palliative care units in Japan. Among 54 eligible patients with advanced cancer, 46 were recruited (24 in the control group vs. 22 in the intervention group). The intervention group received spiritual care using SpiPas and usual care; the control group received usual care. The primary outcome was the Functional Assessment of Chronic Illness Therapy-Spiritual (FACIT-Sp). The secondary outcomes were the Hospital Anxiety and Depression Scale (HADS) and Comprehensive Quality of Life Outcome (CoQoLo).

Result

A total of 33 (72%) and 23 (50%) patients completed 2- and 3-week follow-up evaluations, respectively. The differences in the changes during 2 weeks in total scores of FACIT-Sp and HADS were significant (95% confidence intervals, 3.65, 14.4, p < 0.01; –11.2 to –1.09, p = .02, respectively). No significant changes were observed in the total score of CoQoLo.

Significance of results

Spiritual care using the SpiPas might be useful for improving patient spiritual well-being. This controlled clinical trial could be performed and a future clinical trial is promising if outcomes are obtained within 2 weeks.
Building multifunctionality into agricultural conservation programs: lessons learned from designing agroforestry systems with central Illinois landowners
Authors: Stanek Erik Christian , Lovell Sarah Taylor
Published: January 2019

Since 1985, land retirement has been the primary approach used by the federal government for environmental protection of agricultural landscapes, but increasingly it is being supplemented by conservation initiatives on working lands. This shift logically supports agroforestry and other multifunctional approaches as a means to combine production and conservation. However, such approaches can be complex and difficult to design, contributing to the limited adoption in the USA. To understand and improve the integration of multifunctional landscapes into conservation programs, we worked with 15 landowners in a collaborative design process to build unique conservation plans utilizing agroforestry. We interviewed participants before and after the design process to examine the utility of a personalized design process, applicability of agroforestry to conservation programs and pathways to improve conservation policy. We found that landowners strongly preferred working in person for the design process, and being presented a comparison of alternative designs, rather than a single option, especially for novel systems. Agroforestry was seen as a viable method of generating conservation benefits while providing value to the landowners, each of whom stated they were more inclined to adopt such practices irrespective of financial assistance to do so. For conservation programs, landowners suggested reducing their complexity, inflexibility and impersonal nature to improve the integration of multifunctional practices that appeal directly to the practitioner's needs and preferences. These findings are valuable for conservation policy because they complement previous research theory suggesting the value of working collaboratively with landowners in the design of multifunctional landscapes. Personalized solutions that are developed based on the unique characteristics of the local landscape and the preferences of the individual landowner may be retained beyond a specified payment period, rather than being converted back into annual crop production.
Cessation of anticoagulation therapy following endovascular thrombus	removal and stent placement for acute iliofemoral deep vein	thrombosis
Authors: Sebastian Tim , Engelberger Rolf P. , Spirk David , Hakki Lawrence O. , Baumann Frederic A. , Spescha Rebecca S. , Kucher Nils
Published: January 2019

Summary. Background: The optimal duration of anticoagulation therapy (AT) following catheter-based therapy of acute iliofemoral deep vein thrombosis (IFDVT) with stent placement is unknown. Theoretically, resolving the underlying obstructive iliac vein lesion by a stent may eliminate the main trigger for recurrence, the post-thrombotic syndrome (PTS), and the need for extended-duration AT. Patients and methods: From 113 patients with acute IFDVT who underwent endovascular thrombus removal and stent placement, we compared patency rates and clinical outcomes between 58 patients on limited-duration AT (3–12 month) and 55 patients on extended-duration AT (> 12 months). Results: Mean follow-up duration was 26 ± 18 (range 3–77) months; it was 24 ± 18 (range 3–69) months after cessation of AT in the limited-duration AT group. In comparison to patients with extended-duration AT, patients with limited-duration AT were younger (38 versus 54 years; p < 0.001), more often female (74 % versus 49 %; p = 0.01), and had less often prior venous thromboembolism (VTE) (9 % versus 35 %; p = 0.001). May-Thurner syndrome was more frequent in the limited-duration AT group (66 % versus 38 %; p = 0.004). Overall, primary and secondary patency rates at 24 months were 80 % (95 % CI, 70–87 %) and 95 % (95 % CI, 88–98 %), respectively, with no difference between the groups. Overall, 17 (15 %) patients developed recurrent VTE, of which 14 (82 %) events were thrombotic stent occlusions, and 13 (76 %) events occurred during AT. In the limited-duration AT group, 98 % patients were free from the PTS at two years with a VTE recurrence rate of 3.5 per 100 patient years after cessation of AT. Conclusions: In selected patients with acute IFDVT and patent venous stent, particularly in younger and otherwise healthy patients with May-Thurner syndrome, it appears to be safe to discontinue AT 3–12 months after endovascular treatment. Clinical Trial Registration: The study is registered on the National Institutes of Health website (ClinicalTrials.gov; identifier NCT02433054).
Spatial Patterns of Crop Yield Change by Emitted Pollutant
Authors: Shindell Drew , Faluvegi Greg , Kasibhatla Prasad , Van Dingenen Rita
Published: January 2019

Field measurements and modeling have examined how temperature, precipitation, and exposure to carbon dioxide (CO2) and ozone affect major staple crops around the world. Most prior studies, however, have incorporated only a subset of these influences. Here we examine how emissions of each individual pollutant driving changes in these four factors affect present‐day yields of wheat, maize (corn), and rice worldwide. Our statistical modeling indicates that for the global mean, climate and composition changes have decreased wheat and maize yields substantially whereas rice yields have increased. Well‐mixed greenhouse gasses drive most of the impacts, though aerosol‐induced cooling can be important, particularly for more polluted area including India and China. Maize yield losses are most strongly attributable to methane emissions (via both temperature and ozone). In tropical areas, wheat yield losses are primarily driven by CO2 (via temperature), whereas in temperate zones other well‐mixed greenhouse gases dominate. Rice yields increase in tropical countries due to a larger impact from CO2 fertilization plus aerosol‐induced cooling than losses due to CO2‐induced warming and impacts of non‐CO2 gasses, whereas there are net losses in temperate zones driven largely by methane and other non‐CO2 gasses. Though further work is needed, particularly on the effects of aerosol changes and on nutritional impacts, these results suggest that crop yields over coming decades will be strongly influenced by changes in non‐CO2 greenhouse gasses, ozone precursors, and aerosols and that these should be taking into account in plant‐level models and when examining linkages between climate change mitigation and sustainable development.
The Role of Anthropogenic Aerosol Forcing in Interdecadal Variations of Summertime Upper‐Tropospheric Temperature Over East Asia
Authors: Wang Zhili , Lin Lei , Yang Meilin , Guo Zhun
Published: January 2019

Observations show a significant interdecadal decline of July and August (JA) mean upper‐tropospheric temperature (UTT) over East Asia during the second half of the twentieth century, which is likely responsible for the weakening of the East Asian summer monsoon and the “southern flood and northern drought” phenomenon observed in eastern China. This study investigates the role of anthropogenic aerosol forcing in the interdecadal cooling for the period 1951–2001 and the physical mechanisms involved using a coupled Earth system model, combined with reanalysis data. Our results show that the aerosol forcing leads to a drop of 0.14 °C per decade in JA mean UTT averaged over East Asia (30–45°N, 90–130°E), which significantly contributes to the observed cooling of 0.2 °C per decade. The interdecadal cooling may be attributed to the weakening of interhemispheric differences in JA mean sea surface temperature in response to aerosols. The asymmetric hemispheric change in sea surface temperature alters the local eddy flux, thereby weakening upper‐tropospheric westerlies and the transport of warm air from over the Tibetan plateau into downstream regions between 30°N and 40°N. We further find that changes in the geographic distribution of SO2 emissions are the dominant cause of differences in JA mean UTT trends over East Asia between decades. The projected decrease in anthropogenic aerosols will lead to a rise of 0.05 °C per decade in JA mean UTT over East Asia during 2010–2050 under the Representative Concentration Pathways 8.5 scenario. This will likely have large impacts on the distribution of summer precipitation in East Asia in the future.
Constraining Evaporation Rates Based on Large‐Scale Sea Surface Transects of Salinity or Isotopic Compositions
Authors: Berman Hadar , Paldor Nathan , Churchill James , Lazar Boaz
Published: January 2019

A Lagrangian model is constructed for a surface column of initial height h(0) that propagates at an average speed u and is subject to excess (i.e., net) evaporation of q m/year. It is shown that these parameters combine to form an evaporation length, L = uh(0)/q, which provides an estimate for the distance the column must travel before evaporating completely. While these changes in the surface water level due to evaporation are compensated by entrainment of water into the overall column, the changes in either near‐surface salinity or isotopic compositions are retained and can be measured. Observations of surface salinity and isotopic compositions of δ18O and δD along 1,000‐ to 3,500‐km long transects are used to estimate values of L in the Red Sea, Mediterranean Sea, Indian Ocean, and Gulf Stream. The variations of salinity, δ18O and δD in all four basins are linear. As anticipated, the estimated value of L is smallest in the slowly moving and arid Red Sea and is greatest in the fast‐moving Gulf Stream.
Electric Field Variation in Clear and Convective Conditions at a Tropical Urban Location
Authors: Jana Soumyajyoti , Maitra Animesh
Published: January 2019

The behavior of atmospheric electric field in terms of potential gradient (PG) has been studied during the period of 2013 and 2014 at a tropical and urban location Kolkata (22°34′N, 88°22′E), India. The clear‐weather PG is influenced by varying concentration of black carbon, which is a major pollutant in urban atmosphere. The diurnal variation of the clear‐day PG follows that of the black carbon concentration in all the seasons. It is found that cloud base height and liquid water path correlate well with the PG change in convective events. It is shown that during a convective event the PG change measured over 10‐min interval about 30 min before the onset of rain can approximate impending rain accumulation.
Consistency and Discrepancy of Global Surface Soil Moisture Changes From Multiple Model‐Based Data Sets Against Satellite Observations
Authors: Gu Xihui , Li Jianfeng , Chen Yongqin David , Kong Dongdong , Liu Jianyu
Published: January 2019

A large population of global soil moisture data sets generated by a variety of models is compared with the latest satellite‐based Essential Climate Variable (ECV) soil moisture product in a common framework. The model‐based surface soil moisture data sets include Global Land Data Assimilation System (GLDAS), reanalysis products, Coupled Model Intercomparison Project Phase 5 Global Climate Models (GCMs), and Inter‐Sectoral Impact Model Intercomparison Project (including observation‐driven outputs ISI‐MIP_OBS and GCM‐driven outputs ISI‐MIP_GCM). We evaluate the model‐based surface soil moisture against ECV with focuses on spatial patterns, temporal correlations, long‐term trends, and relationships with precipitation and Normalized Difference Vegetation Index. The results indicate that all data sets reach a good agreement on the spatial patterns of surface soil moisture, which are also consistent with that of precipitation. However, data sets produced by different techniques have considerable discrepancies in the absolute values of surface soil moisture. Specifically, GCMs tend to underestimate the absolute values of surface soil moisture relative to ECV. In comparisons that remove the influence of absolute values (e.g., unbiased root‐mean‐square error), all model‐based data sets show comparable performances against ECV. GLDAS, reanalysis, and ISI‐MIP_OBS data sets show significant positive temporal correlations with ECV. Model‐based data sets and ECV consistently indicate widespread drying trends during 1980–2005, but the regional trends vary in different data sets. Compared to ECV, GLDAS and reanalysis data sets exhibit more intensive drying trends, while Coupled Model Intercomparison Project Phase 5 and ISI‐MIP_GCM tend to underestimate the drying. In most of the regions, the wetting/drying trends are consistent with the increases/decreases in precipitation and Normalized Difference Vegetation Index.
Intertidal Creeks and Overmarsh Circulation in a Small Salt Marsh Basin
Authors: Sullivan Jessica Chassereau , Torres Raymond , Garrett Alfred
Published: January 2019

The role of intertidal creek networks in overmarsh circulation is not well constrained. In this study, we systematically remove intertidal creeks from a high‐resolution salt marsh digital elevation model and conduct new flow simulations with each iteration. Overall, removal of first‐ and second‐order creeks reduced drainage density by 65%, and this had a negligible effect on overmarsh circulation and tracer distribution. However, upon removal of third‐ and fourth‐order creeks, drainage density was reduced by 80% of the original value, and changes in peak velocity magnitude across various spatial and temporal scales reveal a system‐wide switch from ebb to flood dominance. This response coincides with the interruption of topographically connected creeks that facilitate the direct exchange of water and tracer between the marsh interior and the larger subtidal system. Further, this reduction in hydraulic connectivity gives rise to less expansive tracer dispersal and a systematic decline in tracer residence time. Together, these results reveal that for the Groves Creek marsh, lower‐order intertidal creeks have a minor role in overmarsh circulation, while higher‐order creeks increase the potential for short circuiting of flow; they greatly influence overall flood and ebb dominance, and net tracer dispersal and associated retention time. Results reported here provide new insight on, for example, salt marsh restoration and the requisite digital elevation model bathymetry for robust simulations of overmarsh circulation.
The Awakening of the Dormant Mount Vettore Fault (2016 Central Italy Earthquake, Mw 6.6): Paleoseismic Clues on Its Millennial Silences
Authors: Galli P. , Galderisi A. , Peronace E. , Giaccio B. , Hajdas I. , Messina P. , Pileggi D. , Polpetta F.
Published: January 2019

The Mount Vettore normal fault ruptured between August and October 2016, sourcing three earthquakes of Mw 6.2, 6.1, and 6.6. The first one caused the death of 299 people, while the entire sequence reached the highest macroseismic intensity levels in Italy since the catastrophic 1915 Fucino event (Mw 7.1). This fault was known to be one of the historically dormant faults of the Italian Apennines, and its sudden activation, not preceded by any foreshocks, has caught people and scientists off guards. We describe here the results from three new paleoseismic trenches opened across splays of the main antithetic fault that ruptured at surface on 30 October together with the 30‐km‐long Mount Vettore master fault. Data account for six surface faulting events since 9 ka, with a return time of 1.8 ± 0.3 kyr. The penultimate, probably stronger earthquake occurred in Late Roman times, perhaps in 443 AD, when also Rome suffered damage to its monumental buildings. Once again, paleoseismology turns out to be a powerful tool in seismic hazard assessment, especially for earthquakes that recur hundreds or thousands of years apart.