Ejection-accretion connection in NLS1 AGN 1H 1934-063

Accretion and ejection of matter in active galactic nuclei (AGN) are tightly connected phenomena and represent fundamental mechanisms regulating the growth of the central supermassive black hole and the evolution of the host galaxy. However, the exact physical processes involved are not yet fully understood. We present a high-resolution spectral analysis of a simultaneous \xmm\ and \nustar\ observation of the narrow line Seyfert 1 (NLS1) AGN 1H 1934-063, during which the X-ray flux dropped by a factor of $\sim6$ and subsequently recovered within 140 kiloseconds. By means of the time-resolved and flux-resolved X-ray spectroscopy, we discover a potentially variable warm absorber and a relatively stable ultra-fast outflow (UFO, $v_\mathrm{UFO}\sim-0.075\,c$) with a mild ionization state ($\log(\xi/\mathrm{erg\,cm\,s^{-1})}\sim1.6$). The detected emission lines (especially a strong and broad feature around 1\,keV) are of unknown origin and cannot be explained with emission from plasmas in photo- or collisional-ionization equilibrium. Such emission lines could be well described by a strongly blueshifted ($z\sim-0.3$) secondary reflection off the base of the equatorial outflows, which may reveal the link between the reprocessing of the inner accretion flow photons and the ejection. However, this scenario although being very promising is only tentative and will be tested with future observations.Comment: 15 pages, 17 figures, 1 table, accepted for publication in MNRA

The Student Movement Volume 105 Issue 2: Clubs Fare Well: Clubs Preserve Community During COVID

NEWS Clubs, Clubs, Clubs Galore, Taylor Uphus The Andreasen Center for Wellness Reopening, Amanda Cho Danielle Pilgrim Delivers Inspiring Message, Terika Williams PULSE Planning University Club Events Amidst a Pandemic, Masy Domecillo Research at the Science Complex During COVID-19, Jessica Rim Socializing During a Pandemic: Freshmen Perspectives, Interviewed by Wambui Karanja HUMANS BSCF Club Spotlight, Interviewed by TJ Hunter Distance Learning Student Interview, Sydney Saint-Jean Meet Lamson Hall\u27s Newest Dean, Interviewed by Pearl Parker Spiritual Leadership During COVID-19, Interviewed by Terika Williams ARTS & ENTERTAINMENT More Apples to Byte, Hannah Cruse Playing Out the Pandemic: Our Orchestras Dealing with COVID, Megan Napod Signal Boost: The Domino Effect, Pearl Parker Virtual Game Night: A Virtual Reality, Joshua Deonarine IDEAS How Climate Change is Fueling the West Coast Fires, Lyle Goulbourne Ideas That Heal Us: So You Think You\u27re Self-Aware, Evin N. Musgrove THE LAST WORD What am I Applying for & Who am I?, Daniel Selfhttps://digitalcommons.andrews.edu/sm-105/1002/thumbnail.jp

Assessment of the longitudinal humoral response in non-hospitalized SARS-CoV-2-positive individuals at decentralized sites: Outcomes and concordance

IntroductionEarly in the COVID-19 pandemic, reagent availability was not uniform, and infrastructure had to be urgently adapted to undertake COVID-19 surveillance.MethodsBefore the validation of centralized testing, two enzyme-linked immunosorbent assays (ELISA) were established independently at two decentralized sites using different reagents and instrumentation. We compared the results of these assays to assess the longitudinal humoral response of SARS-CoV-2-positive (i.e., PCR-confirmed), non-hospitalized individuals with mild to moderate symptoms, who had contracted SARSCoV-2 prior to the appearance of variants of concern in Québec, Canada.ResultsThe two assays exhibited a high degree of concordance to identify seropositive individuals, thus validating the robustness of the methods. The results also confirmed that serum immunoglobulins persist ≥ 6 months post-infection among non-hospitalized adults and that the antibodies elicited by infection cross-reacted with the antigens from P.1 (Gamma) and B.1.617.2 (Delta) variants of concern.DiscussionTogether, these results demonstrate that immune surveillance assays can be rapidly and reliably established when centralized testing is not available or not yet validated, allowing for robust immune surveillance

The Student Movement Volume 105 Issue 10: One Dose Down, One to Go!: President Luxton Vaccinated

NEWS Andrews University Holds Employee Awards Virtual Celebration, Jenae Rogers New Life Hosts Black Like Me: Growing Up Black, Caralynn Chan Texas Winter Storm Impacts Families of Students at Andrews, Taylor Uphus The Red Cross Blood Drive Reveals Growing Shortage in Donor Participation, Amanda Cho PULSE Favorite Meals: Café Edition, Interviewed by Alec Bofetiado The Wellness Column: Decluttering your Room and Mind, HeeYun Oh The Wellness Column: Decluttering Your Room and Mind, Jessica Rim HUMANS AUSA Candidate Interviews, Interviewed by Abigail Lee Freshman Spotlight: Rekha Isaac, Interviewed by Celeste Richardson Trusting the Science, Interviewed by Pearl Parker ARTS & ENTERTAINMENT Creative Spotlight: Karla Torres, Interviewed by Megan Napod Current Favorites: March, Megan Napod Signal Boost: Canvas, Hannah Cruse IDEAS A Woman and Her God, Evin N. Musgrove COVID-19 Updates: The Variants, the Vaccines, and Other News, Sung Been Han Parler, QAnon, and the Freedom of Speech: What Should be Done?, Abigail Lee THE LAST WORD Taking Stock, Masy Domecillohttps://digitalcommons.andrews.edu/sm-105/1013/thumbnail.jp

The Student Movement Volume 105 Issue 14: Carousel of Composers: Harpist Among Highlights of Sunday\u27s Showcase

NEWS Andrews University Choirs Performs Easter Tenebrae Service, Jenae Rogers AUSA Hosts Easter Proximity Vespers, Terika Williams Makarios, AUSA, & Proximity Collaborate for Easter Sabbath, Amanda Cho Sunday Music Series Features Andrews University Composers, Elianna Srikureja PULSE Dorm Plants, Masy Domecillo Sleep Study, Interviews by Wambui Karanja The Wellness Column, Better Slumber, Jessica Rim HUMANS AU Takes a Stand Against AAPI Violence: An Interview with Eden Seo, Interviewed by Abigail Lee Freshman Spotlight: Solana Campbell, Interviewed by Terika Williams Senior Spotlight: Shelbi Slade, Interviewed by Brandi Seawood ARTS & ENTERTAINMENT Creative Spotlight: Andrew Pak, Interviewed by Megan Napod Spring Playlist, Created by Pearl Parker Taylor\u27s Version, Kaela McFadden IDEAS A Look Into the AUSA Senate, Abigail Lee After Trauma, Adoniah Simon Following your Curiosity: Sydney St. Jean\u27s Honors Research, Sion Kim To the One Who Believes, Evin N. Musgrove THE LAST WORD Trashy Andrews, Lily Burkehttps://digitalcommons.andrews.edu/sm-105/1018/thumbnail.jp

The Student Movement Volume 105 Issue 8: Cardinals Remain Undefeated Despite Season Cancellation

NEWS BSCF Holds Impact Vespers, Terika Williams Chapel Service Celebrates Black History Month, Jenae Rogers Game on Hold: Student-Athletes Hope for New Basketball Season, Amanda Cho PULSE Student Workers: Balancing Life, Work, and Academics, Interviewed by Alec Bofetiado Study Break Recommendations, Masy Domecillo Weekday Holiday: Reflections, Jessica Rim HUMANS Black Student Christian Forum: Black History Month Interview, Interviewed by Fitz-Earl McKenzie II My Experience in COVID-19 Isolation: Edition Two, Interviewed by Brandi Seawood Our Lost Season: An Interview with Cardinals Athletic Director Rob Gettys, Terika Williams Student Missionary Spotlight, Interviewed by Alyssa Henriquez ARTS & ENTERTAINMENT A Brief History Of Black Creativity and Its Importance, Pearl Parker Black Novelists You Should Know & Read, Alannah Tjhatra Creative Spotlight: Autumn Goodman of AGOODIEES, Interviewed by Megan Napod The Hill We Climb, Hannah Cruse IDEAS Choose Wisely, Evin N. Musgrove Playing the Game of Stocks, Matthew Jarrard THE LAST WORD Halftime of Horrors: The Weeknd and Hedonism, Daniel Selfhttps://digitalcommons.andrews.edu/sm-105/1010/thumbnail.jp

Neural underpinnings of threat bias in relation to loss-of-control eating behaviors among adolescent girls with high weight

IntroductionLoss-of-control (LOC) eating, a key feature of binge-eating disorder, may relate attentional bias (AB) to highly salient interpersonal stimuli. The current pilot study used magnetoencephalography (MEG) to explore neural features of AB to socially threatening cues in adolescent girls with and without LOC-eating.MethodsGirls (12–17 years old) with overweight or obesity (BMI >85th percentile) completed an AB measure on an affective dot-probe AB task during MEG and evoked neural responses to angry or happy (vs. neutral) face cues were captured. A laboratory test meal paradigm measured energy intake and macronutrient consumption patterns.ResultsGirls (N = 34; Mage = 15.5 ± 1.5 years; BMI-z = 1.7 ± 0.4) showed a blunted evoked response to the presentation of angry face compared with neutral face cues in the left dorsolateral prefrontal cortex, a neural region implicated in executive control and regulation processes, during attention deployment (p < 0.01). Compared with those without LOC-eating (N = 21), girls with LOC-eating (N = 13) demonstrated a stronger evoked response to angry faces in the visual cortex during attention deployment (p < 0.001). Visual and cognitive control ROIs had trends suggesting interaction with test meal intake patterns among girls with LOC-eating (ps = 0.01).DiscussionThese findings suggest that girls with overweight or obesity may fail to adaptively engage neural regions implicated in higher-order executive processes. This difficulty may relate to disinhibited eating patterns that could lead to excess weight gain

Invasion of the Red Seaweed \u3cem\u3eHeterosiphonia japonica\u3c/em\u3e Spans Biogeographic Provinces in the Western North Atlantic Ocean

The recent invasion of the red alga Heterosiphonia japonica in the western North Atlantic Ocean has provided a unique opportunity to study invasion dynamics across a biogeographical barrier. Native to the western North Pacific Ocean, initial collections in 2007 and 2009 restricted the western North Atlantic range of this invader to Rhode Island, USA. However, through subtidal community surveys, we document the presence of Heterosiphonia in coastal waters from Maine to New York, USA, a distance of more than 700 km. This geographical distribution spans a well-known biogeographical barrier at Cape Cod, Massachusetts. Despite significant differences in subtidal community structure north and south of Cape Cod, Heterosiphonia was found at all but two sites surveyed in both biogeographic provinces, suggesting that this invader is capable of rapid expansion over broad geographic ranges. Across all sites surveyed, Heterosiphonia comprised 14% of the subtidal benthic community. However, average abundances of nearly 80% were found at some locations. As a drifting macrophyte, Heterosiphonia was found as intertidal wrack in abundances of up to 65% of the biomass washed up along beaches surveyed. Our surveys suggest that the high abundance of Heterosiphonia has already led to marked changes in subtidal community structure; we found significantly lower species richness in recipient communities with higher Heterosiphona abundances. Based on temperature and salinity tolerances of the European populations, we believe Heterosiphonia has the potential to invade and alter subtidal communities from Florida to Newfoundland in the western North Atlantic

The Atacama Cosmology Telescope: Data Characterization and Map Making

We present a description of the data reduction and mapmaking pipeline used for the 2008 observing season of the Atacama Cosmology Telescope (ACT). The data presented here at 148 GHz represent 12% of the 90 TB collected by ACT from 2007 to 2010. In 2008 we observed for 136 days, producing a total of 1423 hours of data (11 TB for the 148 GHz band only), with a daily average of 10.5 hours of observation. From these, 1085 hours were devoted to a 850 deg^2 stripe (11.2 hours by 9.1 deg) centered on a declination of -52.7 deg, while 175 hours were devoted to a 280 deg^2 stripe (4.5 hours by 4.8 deg) centered at the celestial equator. We discuss sources of statistical and systematic noise, calibration, telescope pointing, and data selection. Out of 1260 survey hours and 1024 detectors per array, 816 hours and 593 effective detectors remain after data selection for this frequency band, yielding a 38% survey efficiency. The total sensitivity in 2008, determined from the noise level between 5 Hz and 20 Hz in the time-ordered data stream (TOD), is 32 micro-Kelvin sqrt{s} in CMB units. Atmospheric brightness fluctuations constitute the main contaminant in the data and dominate the detector noise covariance at low frequencies in the TOD. The maps were made by solving the least-squares problem using the Preconditioned Conjugate Gradient method, incorporating the details of the detector and noise correlations. Cross-correlation with WMAP sky maps, as well as analysis from simulations, reveal that our maps are unbiased at multipoles ell > 300. This paper accompanies the public release of the 148 GHz southern stripe maps from 2008. The techniques described here will be applied to future maps and data releases.Comment: 20 pages, 18 figures, 6 tables, an ACT Collaboration pape

The Atacama Cosmology Telescope: Cosmological parameters from three seasons of data

We present constraints on cosmological and astrophysical parameters from high-resolution microwave background maps at 148 GHz and 218 GHz made by the Atacama Cosmology Telescope (ACT) in three seasons of observations from 2008 to 2010. A model of primary cosmological and secondary foreground parameters is fit to the map power spectra and lensing deflection power spectrum, including contributions from both the thermal Sunyaev-Zeldovich (tSZ) effect and the kinematic Sunyaev-Zeldovich (kSZ) effect, Poisson and correlated anisotropy from unresolved infrared sources, radio sources, and the correlation between the tSZ effect and infrared sources. The power ell^2 C_ell/2pi of the thermal SZ power spectrum at 148 GHz is measured to be 3.4 +\- 1.4 muK^2 at ell=3000, while the corresponding amplitude of the kinematic SZ power spectrum has a 95% confidence level upper limit of 8.6 muK^2. Combining ACT power spectra with the WMAP 7-year temperature and polarization power spectra, we find excellent consistency with the LCDM model. We constrain the number of effective relativistic degrees of freedom in the early universe to be Neff=2.79 +\- 0.56, in agreement with the canonical value of Neff=3.046 for three massless neutrinos. We constrain the sum of the neutrino masses to be Sigma m_nu < 0.39 eV at 95% confidence when combining ACT and WMAP 7-year data with BAO and Hubble constant measurements. We constrain the amount of primordial helium to be Yp = 0.225 +\- 0.034, and measure no variation in the fine structure constant alpha since recombination, with alpha/alpha0 = 1.004 +/- 0.005. We also find no evidence for any running of the scalar spectral index, dns/dlnk = -0.004 +\- 0.012.Comment: 26 pages, 22 figures. This paper is a companion to Das et al. (2013) and Dunkley et al. (2013). Matches published JCAP versio