Miracle-dz/UniFAR-FTUs huggingface dataset:
New approaches to pathogenesis of malaria in pregnancy

SUMMARY Malaria infection during pregnancy is associated with poor maternal and foetal outcomes including low birth weight. In malaria-endemic areas, low birth weight is primarily a consequence of foetal growth restriction. Little is known on the pathogenesis of foetal growth restriction and our understanding of the relationship between epidemiological observations and the pathogenesis or consequences of disease is incomplete. In this review, we describe these gaps in our knowledge and also try to identify goals for future research into malaria in pregnancy. Foetal growth restriction results from a complex four-dimensional interaction between the foetus, the mother and the malaria parasite over gestation, and research into its pathogenesis may be advanced by combining longitudinal studies with techniques and approaches new to the field of malaria in pregnancy. Such approaches would greatly increase our knowledge on the pathogenesis of this disease and may provide new avenues for intervention strategies.
Sensitivities of marine carbon fluxes to ocean change

Throughout Earth's history, the oceans have played a dominant role in the climate system through the storage and transport of heat and the exchange of water and climate-relevant gases with the atmosphere. The ocean's heat capacity is ≈1,000 times larger than that of the atmosphere, its content of reactive carbon more than 60 times larger. Through a variety of physical, chemical, and biological processes, the ocean acts as a driver of climate variability on time scales ranging from seasonal to interannual to decadal to glacial–interglacial. The same processes will also be involved in future responses of the ocean to global change. Here we assess the responses of the seawater carbonate system and of the ocean's physical and biological carbon pumps to (i) ocean warming and the associated changes in vertical mixing and overturning circulation, and (ii) ocean acidification and carbonation. Our analysis underscores that many of these responses have the potential for significant feedback to the climate system. Because several of the underlying processes are interlinked and nonlinear, the sign and magnitude of the ocean's carbon cycle feedback to climate change is yet unknown. Understanding these processes and their sensitivities to global change will be crucial to our ability to project future climate change.
Strong Impact on the Polycyclic Aromatic Hydrocarbon (PAH)-Degrading Community of a PAH-Polluted Soil but Marginal Effect on PAH Degradation when Priming with Bioremediated Soil Dominated by Mycobacteria

ABSTRACT Bioaugmentation of soil polluted with polycyclic aromatic hydrocarbons (PAHs) is often disappointing because of the low survival rate and low activity of the introduced degrader bacteria. We therefore investigated the possibility of priming PAH degradation in soil by adding 2% of bioremediated soil with a high capacity for PAH degradation. The culturable PAH-degrading community of the bioremediated primer soil was dominated by Mycobacterium spp. A microcosm containing pristine soil artificially polluted with PAHs and primed with bioremediated soil showed a fast, 100- to 1,000-fold increase in numbers of culturable phenanthrene-, pyrene-, and fluoranthene degraders and a 160-fold increase in copy numbers of the mycobacterial PAH dioxygenase gene pdo1. A nonpolluted microcosm primed with bioremediated soil showed a high rate of survival of the introduced degrader community during the 112 days of incubation. A nonprimed control microcosm containing pristine soil artificially polluted with PAHs showed only small increases in the numbers of culturable PAH degraders and no pdo1 genes. Initial PAH degradation rates were highest in the primed microcosm, but later, the degradation rates were comparable in primed and nonprimed soil. Thus, the proliferation and persistence of the introduced, soil-adapted degraders had only a marginal effect on PAH degradation. Given the small effect of priming with bioremediated soil and the likely presence of PAH degraders in almost all PAH-contaminated soils, it seems questionable to prime PAH-contaminated soil with bioremediated soil as a means of large-scale soil bioremediation.
Techniques de conservation de l'énergie dans les réseaux de capteurs mobiles : découverte de voisinage et routage. (Techniques of energy conservation in mobile sensor networks : neighbor discovery and routing)

Le challenge de la consommation d'energie dans les reseaux de capteurs sans fil constitue un verrou technologique qui reste un probleme ouvert encore aujourd'hui. Ces travaux de these s'inscrivent dans la problematique de la conservation de l'energie dans les reseaux de capteurs et s'articulent autour de deux axes. Dans la premiere partie, nous abordons le dimensionnement des protocoles de decouverte de voisinage. Nous proposons deux techniques de dimensionnement de ces protocoles qui visent a optimiser la consommation d'energie des nœuds capteurs. La premiere technique, PPM-BM, consiste a dimensionner le protocole de decouverte de voisins en fonction du niveau de batterie du nœud. La deuxieme approche, ECoND, vise a ajuster la frequence de decouverte de voisins en fonction de la connectivite estimee a chaque instant. Cette technique tire profit des cycles temporels des modeles de mouvement des nœuds. La connectivite est estimee en se basant sur l'historique des rencontres. La decouverte de voisins est ajustee en fonction du taux de connectivite estime. Les resultats enregistres mettent en evidence l'efficacite de ces deux techniques dans l'optimisation de la consommation d'energie des nœuds sans affecter les performances de taux de livraison de messages et d'overhead. La deuxieme partie de la these concerne l'optimisation des performances des reseaux de capteurs en termes de duree de vie. Nous reconsiderons dans cette partie certains protocoles de routage relevant du domaine des reseaux a connectivite intermittente et nous proposons le protocole EXLIOSE qui se base sur la capacite d'energie residuelle au niveau des nœuds pour assurer un equilibre energetique, partager la charge et etendre a la fois la duree de vie des nœuds ainsi que celle du reseau
Comportement viscoélastique longitudinal du bois vert: diversité et prédiction à long terme

Le but de l'etude consistait a predire le comportement viscoelastique longitudinal du bois vert dans la periode correspondant a la vie d'un arbre et d'explorer la diversite de ces proprietes. Le travail s'est deroule en deux temps. Une analyse exploratoire des proprietes vibratoires a ete effectuee sur un large echantillon incluant divers types de bois, y compris des bois de reaction, issus de dix especes tropicales. Dans un deuxieme temps, une selection restreinte des echantillons a ete utilisee pour une etude approfondie du comportement en fluage a long terme. Par ailleurs, la relation avec les parametres structuraux tels que densite, angle des microfibrilles et pourcentage des elements anatomiques a ete etudiee. Une procedure d'evaluation du fluage a long terme a ete mise au point a partir d'essais a differentes temperatures. L'occurrence du vieillissement physique suite au refroidissement consecutif au chauffage au dessus de la temperature de transition vitreuse du bois a ete mise en evidence. L'applicabilite du principe d'equivalence temps-temperature a ete remise en question par l'analyse des resultats dans le plan complexe approche (PCA). L'hypothese supplementaire de la dependance de la complaisance initiale a la temperature, similaire a l'elasticite entropique des polymeres amorphes, a ete proposee et appliquee, permettant de predire avec succes le comportement a long terme a partir d'essais courts. Le fluage thermoactive, ainsi que le phenomene de vieillissement physique, ont ete decrits par un modele de Maxwell parabolique identifie a partir de la representation des resultats dans le PCA. Le comportement en fluage est apparu non correle au coefficient d'amortissement mesure lors des essais vibratoires, suggerant une dissociation entre les mecanismes rheologiques qui controlent le comportement viscoelastiques aux echelles de temps acoustiques (quelques centaines de Hertz) et biologiques (plusieurs annees). Enfin, l'hypothese d'un effet preponderant de la lamelle mitoyenne sur le processus de fluage a ete suggeree pour expliquer les faibles correlations observees entre le fluage relatif et la structure des parois cellulaires.
Neural Correlates of Fixation Duration during Real-world Scene Viewing: Evidence from Fixation-related (FIRE) fMRI

During active scene perception, our eyes move from one location to another via saccadic eye movements, with the eyes fixating objects and scene elements for varying amounts of time. Much of the variability in fixation duration is accounted for by attentional, perceptual, and cognitive processes associated with scene analysis and comprehension. For this reason, current theories of active scene viewing attempt to account for the influence of attention and cognition on fixation duration. Yet almost nothing is known about the neurocognitive systems associated with variation in fixation duration during scene viewing. We addressed this topic using fixation-related fMRI, which involves coregistering high-resolution eye tracking and magnetic resonance scanning to conduct event-related fMRI analysis based on characteristics of eye movements. We observed that activation in visual and prefrontal executive control areas was positively correlated with fixation duration, whereas activation in ventral areas associated with scene encoding and medial superior frontal and paracentral regions associated with changing action plans was negatively correlated with fixation duration. The results suggest that fixation duration in scene viewing is controlled by cognitive processes associated with real-time scene analysis interacting with motor planning, consistent with current computational models of active vision for scene perception.
CFD MODELLING OF THE ACOUSTIC STREAMING INDUCED BY AN ULTRASONIC HORN REACTOR

Power ultrasonic reactors have gained a lot of interest in the food industry given the effects that can arise from sound induced cavitation. However, most of the new food processing developments have been based on empirical approaches. Thus, there is a need for mathematical models which help to understand, optimise and scale up ultrasonic reactors. In this work, a CFD model has been developed, to predict the acoustic streaming induced by an ultrasonic horn reactor. In the model it is assumed that the horn tip is a fluid inlet, where a turbulent jet flow is injected into the vessel. The hydrodynamic momentum rate of the incoming jet is assumed to be equal to the total acoustic momentum rate emitted by the acoustic power source. CFD predictions show excellent agreement with the experimental data at all studied power densities. This model successfully describes hydrodynamic fields (streaming) generated by ultrasound fields. NOMENCLATURE b Characteristic width of the jet approach 1 (m) c Speed of sound (1480 m s -1 ) F r Force vector per unit of volume (N m -3 )
Security information management as an outsourced service

Purpose – Security information management (SIM) has emerged recently as a strong need to ensure the ongoing security of information systems. However, deploying a SIM and the associated sensors is a challenge in any organization, as the complexity and cost of such a project are difficult to bear. This paper aims to present an architecture for outsourcing a SIM platform, and discuss the issues associated with the deployment of such an environment.Design/methodology/approach – The paper is an overview of the typical SIM and a possible architecture for its outsourcing.Findings – The paper explains that the day‐to‐day operation of a SIM is beyond the financial capabilities of all but the largest organizations, as the SIM must be monitored constantly to ensure timely reaction to alerts. Many managed security services providers (MSSP), therefore, propose outsourcing the alert management activities. Sensors are deployed within the customer's infrastructure, and the alerts are sent to the outsourced SIM along with.
Coating And Drying Defects

bons, hydrocarbon polymers, ethylene copolymers, styrenics, acrylics, polyacrylonitrile and copolymers, other C-C main chain polymers, polyethers, polyamides, polyesters, main chain aromatics, and polymer blends. Data for approximately 200 polymers are presented. Each sample is fully identified as to origin, molecular weight, molecular weight distribution and treatment immediately before the test. Specific volume under ambient conditions is also given for each polymer. This book is a careful and complete compendium of pressure-volume-temperature data of polymers.
A Sensitive, Quantitative Assay for Human Immunodeficiency Virus Type 1 Integration

ABSTRACT Quantitative methods to measure human immunodeficiency virus type 1 (HIV-1) integration promise to be important tools in dissecting the mechanisms whereby latent reservoirs of provirus are established, most notably in the resting T cells of patients receiving antiretroviral therapy. Here we describe a fluorescence-monitored, nested PCR assay that is able to quantify the relatively rare integration events that occur within these cells. Following DNA extraction, a nonkinetic preamplification step is performed with primers that bind genomic Alu elements and HIV-1 gag sequences, under conditions where primers, deoxynucleoside triphosphates, and enzyme are not limiting. This is followed by a kinetic PCR that quantitates HIV-1 long terminal repeat sequences. A T-cell-based integration standard which reflects the randomness of HIV-1 integration is also described. The assay is 10 to 100 times more sensitive than previously reported quantitative Alu PCR-based integration assays. It is specific for integration events, since no proviruses are detected in cells infected either in the presence of an integrase inhibitor or with an integrase-deficient virus. This method promises to provide important new insights into the processes underlying the accumulation and persistence of latent HIV-1 reservoirs and may eventually be useful clinically in monitoring the eradication of latent virus by novel therapies.
Plants as Antileishmanial Agents: Current Scenario

Leishmaniasis is a clinical manifestation caused by the parasites of the genus Leishmania. Plants are reservoirs of bioactive compounds, which are known to be chemically balanced, effective and least injurious as compared with synthetic medicines. The current resistance and the toxic effects of the available drugs have brought the trend to assess the antileishmanial effect of various plant extracts and their purified compound/s, which are summarized in this review. Moreover, it also highlights various traditional remedies used by local healers against leishmaniasis. A systematic cross‐sectional study for antileishmanial activity of natural products was carried out using multiple literature databases. The records retrieved since 2000 till year 2016 were analysed and summarized in the form of comprehensive tables and graphs. Natural products are potential source of new and selective agents that can significantly contribute to primary healthcare and probably are promising substitutes of chemicals for the treatment of protozoan diseases like leishmaniasis. Where the researchers prefer to use alcoholic solvents for the extraction of antileishmanial agents from plants, most of the studies are limited to in vitro conditions majorly on using promastigote forms of Leishmania. Thus, there is a need to carry out such activities in vivo and in host macrophages. Further, there is a need of mechanistic studies that can help taking few of the promising pure compounds to clinical level. Copyright © 2016 John Wiley & Sons, Ltd.
Second order extension of power amplifiers behavioral models for accuracy improvements

In the design process of reconfigurable radars, it is required to study the interaction between antennas and the power amplifiers in order to quantify the distortion and predict the performances of power amplifier (PA) on TX-chains. This paper presents an accurate behavioral model for PAs, based on nonlinear scattering functions, which allows taking into account large output loading impedance mismatches, i.e. Voltage Standing Wave Ratio (VSWR) up to four. First application presented is a black box modeling technique limited to Taylor first order expansion dedicated to moderate VSWR (VSWR ≤ 3). Unfortunately, the first order model is not efficient enough, so a second application is presented, showing an accurate model expanded to Taylor second order in the case of large VSWR (VSWR > 3) which allows predicting circuit performances at system level and establishes a mixed simulation tool for a bilateral communication between amplifiers and antennas.
Patterns of Conversion in Francis Bacon's New Atlantis

José María Rodríguez García teaches the history of Spanish and Inter-American poetry at Cornell University. His many essays on early modern culture have appeared in such journals as Explorations in Renaissance Culture, Comparative Literature Studies, Journal of Medieval and Early Modern Studies, and Romance Notes, among others. He has recently edited a special issue of Diacritics on the topic “Literary into Cultural Translation” and is now completing a book-length manuscript on interartistic discourses in modern Spanish poetry. PATTERNS OF CONVERSION IN FRANCIS BACON’S NEW ATLANTIS
Acoustic Log Prediction on the Basis of Kernel Extreme Learning Machine for Wells in GJH Survey, Erdos Basin

In petroleum exploration, the acoustic log (DT) is popularly used as an estimator to calculate formation porosity, to carry out petrophysical studies, or to participate in geological analysis and research (e.g., to map abnormal pore-fluid pressure). But sometime it does not exist in those old wells drilled 20 years ago, either because of data loss or because of just being not recorded at that time. Thus synthesizing the DT log becomes the necessary task for the researchers. In this paper we propose using kernel extreme learning machine (KELM) to predict missing sonic (DT) logs when only common logs (e.g., natural gamma ray: GR, deep resistivity: REID, and bulk density: DEN) are available. The common logs are set as predictors and the DT log is the target. By using KELM, a prediction model is firstly created based on the experimental data and then confirmed and validated by blind-testing the results in wells containing both the predictors and the target (DT) values used in the supervised training. Finally the optimal model is set up as a predictor. A case study for wells in GJH survey from the Erdos Basin, about velocity inversion using the KELM-estimated DT values, is presented. The results are promising and encouraging.
Real-time obstacle detection based on stereo vision for automotive applications

This paper presents a novel algorithm for on-road obstacle detection based on stereo cameras. The proposed algorithm significantly reduces the complexity disparity calculations involved when using a stereo vision technique. Many recent stereo-vision based obstacle detection systems require a dense disparity map and, then, locate the obstacles according to the depth information. However, calculating the correspondence for each pixel is very time consuming. In automotive applications object detection must be performed in real-time. The proposed algorithm uses given parameters of stereo cameras to determine the disparity search range of the pixels assuming all the pixels are on the road surface. According to the predefined search range for the road surface, the true disparities of obstacles are not included. Therefore, large errors will be introduced during block matching which indicate obstacle positions. This new system only consumes less than 10% of the traditional block-based disparity calculations. The core part of the proposed algorithm was implemented on the TI DM648 platform and achieved real-time performance.
Determinación de las exportaciones de manufacturas en los países de la UEM a partir de un modelo de oferta-demanda

Cuando se efectua el analisis de los factores explicativos de la evolucion de las exportaciones, a menudo se consideran unicamente como variables determinantes aquellas que afectan a la demanda de exportaciones, en particular, la competitividad y la demanda exterior, suponiendo asi, que la elasticidad de la oferta es infinita. Sin embargo, esa forma de proceder presenta ciertas limitaciones, pues supone renunciar a priori a utilizar la informacion referida al comportamiento de los oferentes, sin contrastar su posible relevancia en la evolucion de las ventas al exterior. El objetivo del presente articulo es profundizar en el analisis de las exportaciones, permitiendo que las ventas al exterior puedan influir sobre los precios de exportacion. Para ello, se estima un modelo biecuacional oferta demanda y multivariante en el que los precios y cantidades se determinan conjuntamente para ocho paises de la UEM con datos trimestrales de exportaciones de manufacturas desde comienzos de los anos ochenta. La robustez de las estimaciones de demanda a diferentes especificaciones y la nula significatividad de la pendiente de la oferta en la mayoria de los paises, validaria el supuesto de una oferta infinitamente elastica normalmente asumido. De esta forma, perturbaciones en la competitividad, en la renta de los consumidores o en los costes tienen un mayor efecto sobre las cantidades que sobre los precios.
Lymphomatous Meningosis Diagnosed with [18F]-Fluorodeoxyglucose–Positron-Emission Tomography/CT

A primary manifestation of a highly malignant B-cell lymphoma is an important, albeit uncommon, cause of radiculopathy. Rarely, a primary central nervous system lymphoma (PCNSL) disseminates outside the central nervous system (CNS) as seen in the patient described in this case. A previously healthy
Molecular Regulation of Müllerian Development by Hox Genes

Abstract: HOX genes are a family of regulatory molecules that encode conserved transcription factors controlling aspects of morphogenesis and cell differentiation during normal embryonic development. All metazoans possess a common genetic system for embryonic patterning, and this system is also used in the reproductive tract. Hox genes are also expressed in the adult uterus. Hox genes are essential both for the development of müllerian tract in the embryonic period and adult function. Sex steroids regulate Hox gene expression during embryonic and endometrial development in the menstrual cycle. EMX2 and β3‐integrin acting downstream of Hoxa10 gene are likely involved in both these developmental processes. This article reviews the role and molecular regulation of Hox genes in reproductive tract development.