bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influencia de la materia orgánica y Azotobacter nigricans en un cultivo de Stevia rebaudiana B
Authors: Borda-Molina Daniel , Pardo-García Juan Manuel , Montaña-Lara José Salvador , Martínez-Salgado María Mercedes 
Published: November 2015

<p><strong> </strong></p> <p><strong> </strong><em>Stevia rebaudiana</em> is a plant that accumulates a non-caloric sweetener compound known as stevioside. This crop is traditionally fertilized with chemicals that are harmful for the ecosystem, forcing to find organic alternatives to mitigate this damage. <strong>Objective</strong>. To study the effect of organic matter and an <em>Azotobacter nigricans</em>-based bio-fertilizer on a <em>Stevia rebaudiana </em>plantation grown in acidic soil in the Department of Meta, Colombia. <strong>Materials and methods.</strong> Five treatments were established: T1 and T2 with the application of home organic waste compost at concentrations of 15 and 30 ton ha<sup>-1</sup>. T3 and T4 with the same compost concentrations and inoculating the<em> A. nigricans </em>bio-fertilizer. T5 contained the bio-fertilizer alone. The control consisted of the application of the Bokashi compost under the usual conditions of cultivation. Plant growth was assessed by biomass increase measured as dry weight, production, and leaf area. The physicochemical analysis of soil included: percentage of organic carbon, water content, and pH. <strong>Results. </strong>The inoculation of the bio-fertilizer produced an increase in the rate of mineralization of compost, reaching a final 4.85% of OC between 90 and 180 days after inoculation. <strong> </strong>There were significant (p&lt; 0.05) differences between biomass production with T2 (1,538 kg ha<sup>-1</sup>) and the control (477 kg ha<sup>-1</sup>). Regarding the soluble solid content, T1, T3 and T4 showed the highest °Brix values (12.4, 12.35 and 12.15, respectively). <strong>Conclusions</strong>. The concentration of 30 ton ha<sup>-1</sup> produced the highest biomass production and the application of the biofertilizer showed a positive correlation with compost mineralization and glucoside synthesis.</p> <p><strong> </strong></p> <p><strong>Key words</strong>: <em>Stevia rebaudiana</em>, bio-fertilizer, mineralization, organic carbon.</p> <p> </p><br />
Aplicación de técnicas estadísticas multivariadas en perfilación y segmentación
Authors: Rueda Varon Milton Januario , Moya-Moya Luz Marina , Aranda-Silva Moises 
Published: November 2015

<p><strong> Objective</strong>.To use the information about the factors identified, by means of correspondence analyses to determine the behavior of the variables to be used to then make a natural segmentation, thus facilitating the interpretation and presentation of results. <strong>Materials and methods</strong>. We present a new profiling and segmentation approach by using correspondence analyses and classification. <strong>Results.</strong> By using this methodology we can optimize the determination of segments and the profiling of a set of variables. This procedure allows researchers of different disciplines to present and interpret the results of their research efficiently. <strong>Conclusions</strong>. The procedure here described enables a simple and quick interpretation of the analysis on many variables, rendering its use and implementation easy.</p> <p><strong>Key words: </strong>profiling, segmentation, multivariate techniques, correspondences.</p> <p><strong> </strong></p><br />
Proteína LIC10494 de Leptospira interrogans serovar Copenhageni: modelo estructural y regiones funcionales asociadas
Authors: Barreto Leidy Viviana , Barreto George Emílio , Morales Ludis , Acevedo Orlando Emilio , González Santos Janneth 
Published: November 2015

<p><strong>Objective</strong>. Predict by computational means the 3D structure of the antigenic protein LIC10494 and report associated important functional regions for its pathogenicity and immunogenicity. <strong>Materials and methods</strong>. We performed a computational analysis of the primary structure of LIC10494 using the servers BLAST, PROTPARAM, PROTSCALE, DAS, SOSUI, TOPPRED, TMAP, TMpred, SPLIT4, PHDHTM, TMHMM2, HMMTOP2, GLOBPLOT and PROSITE. The secondary structure was obtained by consensus of the algorithms SOPM, PREDATOR GOR4, DPM and DSC. The approach to the tertiary structure was obtained using the algorithm MUSTER. The energy minimization was done using the AMBER94 force field of the Schrodinger suite of molecular analysis, and the stereochemistry and energy model validation was performed by the RAMPAGE server. The final model was visualized using PyMol V.0,98. <strong>Results</strong>. This study proposes a computational model that describes the 3D structure of the hypothetical lipoprotein LIC10494 and agrees with previous experimental reports; thus, our study demonstrates the existence of patterns that could play an important role in the pathogenicity and protection of the bacteria against the host immune system; the presence of a disorganized region between amino acids 80 and 140, and of a transmembrane segment between amino acids 8 and 22. <strong>Conclusion</strong>. The coincidence between structural and functional segments suggests that our model can be used to predict certain aspects of the biological behaviour of the protein according to the pathogenic and immunogenic characteristics of the bacteria.</p><p><br /><strong>Key word</strong>s: Antigen, Bacteria Leptospirosis, LIC10494, Outer membrane protein.</p><p> </p>
Plant-based Complementary and alternative medicine used by breast cancer patients at the Hospital Universitario San Ignacio in Bogotá, Colombia.
Authors: Diaz Luz Angela , Torregrosa Lilian , Benavidez Luisa , Mercado Marcela , Fiorentino Susana 
Published: November 2015

The present study estimates the frequency of the use of plant-based Complementary and Alternative Medicine (CAM) by breast cancer patients. From June to December of 2011, a self-administered questionnaire was given to 404 breast cancer patients receiving outpatient therapy at the Javeriana Oncology Center of the Hospital Universitario San Ignacio in Bogotá. The prevalence of patient CAM use was 57%, out of which 76% was based on plants like anamú, aloe, red fruits and soursop. Sixty-five percent of the patients had a positive perception of using medicinal plants and 57% used them simultaneously with the oncologist recommended allopathic treatment. We concluded that the frequency of CAM use in breast cancer patients at the Javeriana Oncology Center is within the prevalence range reported worldwide, despite differences in CAM types and frequencies. The high rates of plant-based CAM use without physician consent, brings about the lack of assessment of the synergic or antagonistic effects of CAM therapies on the allopathic treatment of breast cancer and evaluation of the antitumor and immunomodulatory potential of the traditionally used plants.
Effects of a DVD-Delivered Exercise Intervention on Maintenance of Physical Activity in Older Adults
Authors: Fanning Jason , Awick Elizabeth A. , Wójcicki Thomas R. , Gothe Neha , Roberts Sarah , Ehlers Diane K. , Motl Robert W. , McAuley Edward 
Published: November 2015

Background:Previous research supports the efficacy of a 6-month DVD-delivered program for enhancing physical activity (PA) in older adults. In the current study, we examined the degree to which intervention-related increases in PA were maintained after a 6-month, no-contact follow-up.Methods:Follow-up assessments of PA via accelerometry and the Godin Leisure-Time Exercise Questionnaire (GLTEQ) were collected in a sample of older adults (N = 238). Repeated measures analyses of variance were conducted to examine changes in PA over the course of the follow-up period.Results:For accelerometer measured PA, there was a significant time × treatment × age group interaction, F1,203 =11.319, P = .001, η2 = .053, such that younger (≤70 years) intervention participants maintained high levels of PA across the follow-up period, while PA in older intervention and young control participants declined significantly. Rates of PA in older control participants remained low over the course of the follow-up period. Analyses of GLTEQ scores revealed similar, though less significant patterns.Conclusions:DVD-based exercise programs may be effective for maintaining PA in younger members of the older adult population; however, there remains a need to develop better strategies for promoting PA maintenance in older individuals when using home-based designs.
Competing Effects Between Screen Media Time and Physical Activity in Adolescent Girls: Clustering a Self-Organizing Maps Analysis
Authors: Valencia-Peris Alexandra , Devís-Devís José , García-Massó Xavier , Lizandra Jorge , Pérez-Gimeno Esther , Peiró-Velert Carmen 
Published: November 2015

Background:Previous research shows contradictory findings on potential competing effects between sedentary screen media usage (SMU) and physical activity (PA). This study examined these effects on adolescent girls via self-organizing maps analysis focusing on 3 target profiles.Methods:A sample of 1,516 girls aged 12 to 18 years self-reported daily time engagement in PA (moderate and vigorous intensity) and in screen media activities (TV/video/DVD, computer, and videogames), separately and combined.Results:Topological interrelationships from the 13 emerging maps indicated a moderate competing effect between physically active and sedentary SMU patterns. Higher SES and overweight status were linked to either active or inactive behaviors. Three target clusters were explored in more detail. Cluster 1, named temperate-media actives, showed capabilities of being active while engaging in a moderate level of SMU (TV/video/DVD mainly). In Cluster 2, named prudent-media inactives, and Cluster 3, compulsive-media inactives, a competing effect between SMU and PA emerged, being sedentary SMU behaviors responsible for a low involvement in active pursuits.Conclusions:SMU and PA emerge as both related and independent behaviors in girls, resulting in a moderate competing effect. Findings support the case for recommending the timing of PA and SMU for recreational purposes considering different profiles, sociodemographic factors and types of SMU.
Surface growth for molten silicon infiltration into carbon millimeter-sized channels: Lattice–Boltzmann simulations, experiments and models
Authors: Sergi Danilo , Camarano Antonio , Molina José Miguel , Ortona Alberto , Narciso Javier 
Published: November 2015

The process of liquid silicon (Si) infiltration is investigated for channels with radii from 0.25[Formula: see text][mm] to 0.75[Formula: see text][mm] drilled in compact carbon (C) preforms. The advantage of this setup is that the study of the phenomenon results can be simplified. For comparison purposes, attempts are made in order to work out a framework for evaluating the accuracy of simulations. The approach relies on dimensionless numbers involving the properties of the surface reaction. It turns out that complex hydrodynamic behavior derived from second Newton law can be made consistent with Lattice–Boltzmann (LB) simulations. The experiments give clear evidence that the growth of silicon carbide (SiC) proceeds in two different stages and basic mechanisms are highlighted. LB simulations prove to be an effective tool for the description of the growing phase. Namely, essential experimental constraints can be implemented. As a result, the existing models are useful to gain more insight on the process of reactive infiltration into porous media in the first stage of penetration, i.e. up to pore closure because of surface growth. A way allowing one to implement the resistance from chemical reaction in Darcy law is also proposed.
Review of gravitomagnetic acceleration from accretion disks
Authors: Poirier J. , Mathews G. J. 
Published: November 2015

We review the development of the equations of gravitoelectromagnetism and summarize how the motion of the neutral masses in an accretion disk orbiting a black hole creates a general-relativistic magnetic-like (gravitomagnetic) field that vertically accelerates neutral particles near the accretion disk upward and then inward toward the axis of the accretion disk. Even though this gravitomagnetic field is not the only mechanism to produce collimated jets, it is a novel means to identify one general relativistic effect from a much more complicated problem. In addition, as the accelerated material above or below the accretion disk nears the axis with a nearly vertical direction, a frame-dragging effect twists the trajectories around the axis thus contributing to the collimation of the jet.
Air Pollution and Ischemic Stroke Among Young Adults
Authors: Yitshak Sade Maayan , Novack Victor , Ifergane Gal , Horev Anat , Kloog Itai 
Published: November 2015

Background and Purpose—
Studies have demonstrated consistent associations between cardiovascular illness and particulate matter (PM) <10 and <2.5 μm in diameter, but stroke received less attention. We hypothesized that air pollution, an inflammation progenitor, can be associated with stroke incidence in young patients in whom the usual risk factors for stroke are less prevalent. We aimed to evaluate the association between stroke incidence and exposure to PM <10 and <2.5 μm, in a desert area characterized by a wide range of PM.

Methods—
We included all members of the largest health maintenance organization in Israel, who were admitted to a local hospital with stroke between 2005 and 2012. Exposure assessment was based on a hybrid model incorporating daily satellite remote sensing data at 1-km spatial resolution. We performed case-crossover analysis, stratified by personal characteristics and distance from main roads.

Results—

We identified 4837 stroke cases (89.4% ischemic stroke). Interquartile range of PM <10 and <2.5 μm was 36.3 to 54.7 and 16.7 to 23.3 μg/m
3
, respectively. The subjects’ average age was 70 years; 53.4% were males. Associations between ischemic stroke and increases of interquartile range average concentrations of particulate matter <10 or <2.5 μm at the day of the event were observed among subjects <55 years (odds ratio [95% confidence interval], 1.11 [1.02–1.20] and 1.10 [1.00–1.21]). Stronger associations were observed in subjects living within 75 m from a main road (1.22 [1.03–1.43] and 1.26 [1.04–1.51]).

Conclusions—
We observed higher risk for ischemic stroke associated with PM among young adults. This finding can be explained by the inflammatory mechanism, linking air pollution and stroke.
Radiative and Dynamical Influences on Polar Stratospheric Temperature Trends
Authors: Ivy Diane J. , Solomon Susan , Rieder Harald E. 
Published: November 2015

Abstract
Radiative and dynamical heating rates control stratospheric temperatures. In this study, radiative temperature trends due to ozone depletion and increasing well-mixed greenhouse gases from 1980 to 2000 in the polar stratosphere are directly evaluated, and the dynamical contributions to temperature trends are estimated as the residual between the observed and radiative trends. The radiative trends are obtained from a seasonally evolving fixed dynamical heating calculation with the Parallel Offline Radiative Transfer model using four different ozone datasets, which provide estimates of observed ozone changes. In the spring and summer seasons, ozone depletion leads to radiative cooling in the lower stratosphere in the Arctic and Antarctic. In Arctic summer there is weak wave driving, and the radiative cooling due to ozone depletion is the dominant driver of observed trends. In late winter and early spring, dynamics dominate the changes in Arctic temperatures. In austral spring and summer in the Antarctic, strong dynamical warming throughout the mid- to lower stratosphere acts to weaken the strong radiative cooling associated with the Antarctic ozone hole and is indicative of a strengthening of the Brewer–Dobson circulation. This dynamical warming is a significant term in the thermal budget over much of the Antarctic summer stratosphere, including in regions where strong radiative cooling due to ozone depletion can still lead to net cooling despite dynamical terms. Quantifying the contributions of changes in radiation and dynamics to stratospheric temperature trends is important for understanding how anthropogenic forcings have affected the historical trends and necessary for projecting the future.
The Icelandic Low as a Predictor of the Gulf Stream North Wall Position
Authors: Sanchez-Franks Alejandra , Hameed Sultan , Wilson Robert E. 
Published: November 2015

AbstractThe Gulf Stream’s north wall east of Cape Hatteras marks the abrupt change in velocity and water properties between the slope sea to the north and the Gulf Stream itself. An index of the north wall position constructed by Taylor and Stephens, called Gulf Stream north wall (GSNW), is analyzed in terms of interannual changes in the Icelandic low (IL) pressure anomaly and longitudinal displacement. Sea surface temperature (SST) composites suggest that when IL pressure is anomalously low, there are lower temperatures in the Labrador Sea and south of the Grand Banks. Two years later, warm SST anomalies are seen over the Northern Recirculation Gyre and a northward shift in the GSNW occurs. Similar changes in SSTs occur during winters in which the IL is anomalously west, resulting in a northward displacement of the GSNW 3 years later. Although time lags of 2 and 3 years between the IL and the GSNW are used in the calculations, it is shown that lags with respect to each atmospheric variable are statistically significant at the 5% level over a range of years. Utilizing the appropriate time lags between the GSNW index and the IL pressure and longitude, as well as the Southern Oscillation index, a regression prediction scheme is developed for forecasting the GSNW with a lead time of 1 year. This scheme, which uses only prior information, was used to forecast the GSNW from 1994 to 2015. The correlation between the observed and forecasted values for 1994–2014 was 0.60, significant at the 1% level. The predicted value for 2015 indicates a small northward shift of the GSNW from its 2014 position.
High-Speed Optical Disdrometer for Rainfall Microphysical Observations
Authors: Testik F. Y. , Rahman M. K. 
Published: November 2015

AbstractA high-speed optical disdrometer (HOD) that was developed for measuring rainfall microphysical quantities, including raindrop shape, size distribution, and fall velocity/acceleration, is the subject of this paper. The main components of the HOD are a high-speed video camera, a light-emitting diode (LED) light, and a sensing unit to detect raindrops passing through the camera view frame. The high-speed video camera is directed at the LED light to capture the silhouettes of the backlit drops when triggered by a raindrop that is detected within a specified focal depth by the sensing unit. The use of a sensing unit enables the confinement of a measurement volume around the camera focal plane. This innovative operation principle ensures the capture of sharp images of raindrop silhouettes, which are then digitally processed to provide accurate information on various raindrop characteristics. The measurement capabilities of the HOD were evaluated through both laboratory and field tests. In the laboratory tests, high-precision spherical lenses with known diameters and water drops of different sizes generated for a known volume of water were used. In the field tests, the HOD was evaluated against a reference rain gauge in a number of rain events. These tests demonstrated the precise accuracy of HOD measurements and the HOD’s technological readiness for field deployment for various applications. It is expected that the HOD will play an important role in generating new insights on raindrop dynamics and related research through its unique measurement capability of providing sequential high-speed images of raindrops.
OBEST: An Observation-Based Ensemble Subsetting Technique for Tropical Cyclone Track Prediction
Authors: Dong Lin , Zhang Fuqing 
Published: November 2015

Abstract
An observation-based ensemble subsetting technique (OBEST) is developed for tropical cyclone track prediction in which a subset of members from either a single- or multimodel ensemble is selected based on the distance from the latest best-track position. The performance of OBEST is examined using both the 2-yr hindcasts for 2010–11 and the 2-yr operational predictions during 2012–13. It is found that OBEST outperforms both the simple ensemble mean (without subsetting) and the corresponding deterministic high-resolution control forecast for most forecast lead times up to 5 days. Applying OBEST to a superensemble of global ensembles from both the European Centre for Medium-Range Weather Forecasts and the National Centers for Environmental Prediction yielded a further reduction in track forecast errors by 5%–10% for lead times of 24–120 h.
Misshapen/NIK-related kinase (MINK1) is involved in platelet function, hemostasis, and thrombus formation
Authors: Yue Ming , Luo Dongjiao , Yu Shanshan , Liu Pu , Zhou Qi , Hu Mengjiao , Liu Yangyang , Wang Shuai , Huang Qian , Niu Yuxi , Lu Linrong , Hu Hu 
Published: November 2015

Key Points
MINK1 promotes hemostasis and thrombosis in vivo. MINK1 specifically regulates platelet dense-granule secretion.
Plasma fractalkine is a sustained marker of disease severity and outcome in sepsis patients
Authors: Hoogendijk Arie J. , Wiewel Maryse A. , van Vught Lonneke A. , Scicluna Brendon P. , Belkasim-Bohoudi Hakima , Horn Janneke , Zwinderman Aeilko H. , Klein Klouwenberg Peter M. C. , Cremer Olaf L. , Bonten Marc J. , Schultz Marcus J. , van der Poll Tom ,   on behalf of the MARS consortium
Published: November 2015

AbstractIntroductionFractalkine is a chemokine implicated as a mediator in a variety of inflammatory conditions. Knowledge of fractalkine release in patients presenting with infection to the Intensive Care Unit (ICU) is highly limited. The primary objective of this study was to establish whether plasma fractalkine levels are elevated in sepsis and associate with outcome. The secondary objective was to determine whether fractalkine can assist in the diagnosis of infection upon ICU admission.MethodsFractalkine was measured in 1103 consecutive sepsis patients (including 271 patients with community-acquired pneumonia (CAP)) upon ICU admission and at days 2 and 4 thereafter; in 73 ICU patients treated for suspected CAP in whom this diagnosis was refuted in retrospect; and in 5 healthy humans intravenously injected with endotoxin.ResultsCompared to healthy volunteers, sepsis patients had strongly elevated fractalkine levels. Fractalkine levels increased with the number of organs failing, were higher in patients presenting with shock, but did not vary by site of infection. Non-survivors had sustained elevated fractalkine levels when compared to survivors. Fractalkine was equally elevated in CAP patients and patients treated for CAP but in whom the diagnosis was retrospectively refuted. Fractalkine release induced by intravenous endotoxin followed highly similar kinetics as the endothelial cell marker E-selectin.ConclusionsPlasma fractalkine is an endothelial cell derived biomarker that, while not specific for infection, correlates with disease severity in sepsis patients admitted to the ICU.