Dark Matter Halo Properties vs. Local Density and Cosmic Web Location

We study the effects of the local environmental density and the cosmic web environment (filaments, walls, and voids) on key properties of dark matter halos using the Bolshoi-Planck LCDM cosmological simulation. The z = 0 simulation is analysed into filaments, walls, and voids using the SpineWeb method and also the VIDE package of tools, both of which use the watershed transform. The key halo properties that we study are the specific mass accretion rate, spin parameter, concentration, prolateness, scale factor of the last major merger, and scale factor when the halo had half of its z = 0 mass. For all these properties, we find that there is no discernible difference between the halo properties in filaments, walls, or voids when compared at the same environmental density. As a result, we conclude that environmental density is the core attribute that affects these properties. This conclusion is in line with recent findings that properties of galaxies in redshift surveys are independent of their cosmic web environment at the same environmental density at z ~ 0. We also find that the local web environment of the Milky Way and the Andromeda galaxies near the centre of a cosmic wall does not appear to have any effect on the properties of these galaxies' dark matter halos except for their orientation, although we find that it is rather rare to have such massive halos near the centre of a relatively small cosmic wall.Comment: 23 page

Eco-intelligent monitoring for fouling detection in clean-in-place

Clean-in-place (CIP) is a widely used technique applied to clean industrial equipment without disassembly. Cleaning protocols are currently defined arbitrarily from offline measurements. This can lead to excessive resource (water and chemicals) consumption and downtime, further increasing environmental impacts. An optical monitoring system has been developed to assist eco-intelligent CIP process control and improve resource efficiency. The system includes a UV optical fouling monitor designed for real-time image acquisition and processing. The output of the monitoring is such that it can support further intelligent decision support tools for automatic cleaning assessment during CIP phases. This system reduces energy and water consumption, whilst minimising non-productive time: the largest economic cost for CIP

Modelling the Inorganic Bromine Partitioning in the Tropical Tropopause over the Pacific Ocean

The stratospheric inorganic bromine burden (Bry) arising from the degradation of brominated very short-lived organic substances (VSL org ), and its partitioning between reactive and reservoir species, is needed for a comprehensive assessment of the ozone depletion potential of brominated trace gases. Here we present modelled inorganic bromine abundances over the Pacific tropical tropopause based on aircraft observations of VSL org of two campaigns of the Airborne Tropical TRopopause EXperiment (ATTREX 2013 carried out over eastern Pacific and ATTREX 2014 carried out over the western Pacific) and chemistry-climate simulations (along ATTREX flight tracks) using the specific meteorology prevailing. Using the Community Atmosphere Model with Chemistry (CAM-Chem), we model that BrO and Br are the daytime dominant species. Integrated across all ATTREX flights BrO represents ~ 43 % and 48 % of daytime Bry abundance at 17 km over the Western and Eastern Pacific, respectively. The results also show zones where Br/BrO >1 depending on the solar zenith angle (SZA), ozone concentration and temperature. On the other hand, BrCl and BrONO 2 were found to be the dominant night-time species with ~ 61% and 56 % of abundance at 17 km over the Western and Eastern Pacific, respectively. The western-to-eastern differences in the partitioning of inorganic bromine are explained by different abundances of ozone (O3), nitrogen dioxide (NO2) , and total inorganic chlorine (Cly).Fil: Navarro, María A.. University of Miami; Estados UnidosFil: Saiz-lopez, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; EspañaFil: Cuevas, Carlos Alberto. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; EspañaFil: Fernandez, Rafael Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Universidad Tecnologica Nacional. Facultad Regional Mendoza. Secretaría de Ciencia, Tecnología y Postgrado; ArgentinaFil: Atlas, Elliot. University of Miami; Estados UnidosFil: Rodriguez Lloeveras, Xavier. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; EspañaFil: Kinnison, Douglas E.. National Center For Atmospheric Research. Amospheric Chemistry División; Estados UnidosFil: Lamarque, Jean Francois. National Center For Atmospheric Research. Amospheric Chemistry División; Estados UnidosFil: Tilmes, Simone. National Center For Atmospheric Research. Amospheric Chemistry División; Estados UnidosFil: Thornberry, Troy. State University of Colorado at Boulder; Estados Unidos. Earth System Research Laboratory; Estados UnidosFil: Rollins, Andrew. State University of Colorado at Boulder; Estados Unidos. Earth System Research Laboratory; Estados UnidosFil: Elkins, James W.. Earth System Research Laboratory; Estados UnidosFil: Hintsa, Eric J.. State University of Colorado at Boulder; Estados Unidos. Earth System Research Laboratory; Estados UnidosFil: Moore, Fred L.. State University of Colorado at Boulder; Estados Unidos. Earth System Research Laboratory; Estados Unido

Self-Efficacy and Openness to Experience as Antecedent of Study Engagement: An Exploratory Analysis

AbstractPrevious research provides evidence for the association between openness to experience (OTE) and study engagement (SI People who are open to experience could perceive demands as challenges through which they can learn and broaden tht resources promoting engagement. We hypothesized that self-efficacy will fully mediates the relationship of OTE and SE. A tw wave study was conducted with 37 students. The path analysis shows that self-efficacy fully mediates the relationship betwe OTE and SE both times. This suggests that when people are willing to experience new things, tend to be more engaged if th believe they are capable of overcome the event

Far infrared giant dipole resonances in neutral quantum dots

A resonance behaviour of the far infrared absorption probability at a frequency \sim N^{1/4} is predicted for clusters of N electron-hole pairs (2\le N\le 110) confined in disk-shaped quantum dots. For radially symmetric dots, the absorption is dominated by a Giant Dipole Resonance, which accounts for more than 98 % of the energy-weighted photoabsorption sum rule.Comment: final versio

An In Vivo Platform for Tumor Biomarker Assessment

Tumor biomarkers provide a quantitative tool for following tumor progression and response to therapy. However, investigations of clinically useful tumor biomarkers are time-consuming, costly, and limited by patient and tumor heterogeneity. In addition, assessment of biomarkers as indicators of therapy response is confounded by the concomitant use of multiple therapeutic interventions. Herein we report our use of a clinically relevant orthotopic animal model of malignant pleural mesothelioma for investigating tumor biomarkers. Utilizing multi-modality imaging with correlative histopathology, we demonstrate the utility and accuracy of the mouse model in investigating tumor biomarkers – serum soluble mesothelin-related peptide (SMRP) and osteopontin (OPN). This model revealed percentage change in SMRP level to be an accurate biomarker of tumor progression and therapeutic response – a finding consistent with recent clinical studies. This in vivo platform demonstrates the advantages of a validated mouse model for the timely and cost-effective acceleration of human biomarker translational research

Manifestaciones neurológicas asociadas a COVID-19 en el Hospital Edgardo Rebagliati Martins, Perú

The disease caused by coronavirus 2 associated with severe acute respiratory syndrome (SARS-CoV-2) is formally known as Coronavirus Disease 2019 (COVID-19). Its main focus is the respiratory system, but neurological manifestations have also been described. Objective: To describe the neurological manifestations in patients with COVID-19 at the Edgardo Rebagliati Martins hospital. Material and Methods: An observational, descriptive, cross- sectional study, using the electronic medical records of COVID-19 hospitalized and discharged during the April- August 2020 period. The patients were classified as carrying neurological manifestations of the central and peripheral nervous system. Results: Of 1122 patients, 354 (31.5%) had some neurological manifestation while 26.9% showed symptoms of the central nervous system (CNS), and 8.4% of the peripheral nervous system (PNS). Among the CNS manifestations, the most frequent symptom was headache (19.7%), and as pathologies: encephalopathy (4.7%), ischemic stroke (2.7%), acute symptomatic seizure (0.5%), cerebral hemorrhage (0,4%), encephalitis (0.2%). From the PNS manifestations, myalgia (3.4%), anosmia (3.1%) and dysgeusia (2.9%) predominated and, as pathologies, rhabdomyolysis (1.3%) and acute polyradiculoneuropathy (0.3%). The fatality rate reached 32.7% with an OR of 1.4. Conclusions: Patients with SARS-CoV-2 infection can present neurological symptoms as those described in the present study, manifestations that should be considered in their timely and integrated care.La enfermedad causada por el coronavirus 2 asociado al síndrome respiratorio agudo grave (SARS-CoV-2), se conoce formalmente como Coronavirus Disease 2019 (COVID-19). Su principal foco de infección es el sistema respiratorio, pero se han descrito también manifestaciones neurológicas. Objetivo: Describir las manifestaciones neurológicas en pacientes con COVID-19 en el hospital Edgardo Rebagliati Martins. Material y Métodos: Estudio observacional, descriptivo, transversal, empleando los registros médicos electrónicos de los pacientes hospitalizados con COVID -19 y dados de alta durante el periodo Abril-Agosto 2020. Se clasificaron a los pacientes como portadores de manifestaciones neurológicas del sistema nervioso central y periférico. Resultados: De 1122 pacientes, 354 (31,5%) presentaron alguna manifestación neurológica, en tanto que 26,9% mostraron síntomas del sistema nervioso central (SNC) y 8,4% del sistema nervioso periféricos (SNP). El síntoma más frecuente del SNC fue cefalea (19,7%) y como patologías: encefalopatía (4,7%), el ataque cerebrovascular isquémico(2,7%), crisis epiléptica sintomática aguda (0,5%), hemorragia cerebral (0,4%), encefalitis (0,2%). Dentro de las manifestaciones del SNP predominaron mialgia (3,4%), anosmia (3,1%), disgeusia (2,9%) y, como patologías, rabdomiólisis (1,3%) y polirradiculoneuropatía aguda (0,3%). La tasa de letalidad alcanzó el 32,7% con un OR de 1,4. Conclusiones: Pacientes con infección por SARS-CoV-2 pueden presentar sintomatología neurológica como la descrita en el presente estudio, y sus manifestaciones deben ser consideradas en la atención oportuna e integral de los casos