A5030793907- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Magnesium in Health and Disease
- Astronomy and Astrophysical Research
- Potassium and Related Disorders
- Renal function and acid-base balance
- Stellar, planetary, and galactic studies
- Heavy Metal Exposure and Toxicity
- Electrolyte and hormonal disorders
- Dialysis and Renal Disease Management
- Sepsis Diagnosis and Treatment
- Astro and Planetary Science
- Parathyroid Disorders and Treatments
- Hemodynamic Monitoring and Therapy
- Astronomical Observations and Instrumentation
- Astrophysics and Cosmic Phenomena
- Acute Kidney Injury Research
- Astrophysics and Star Formation Studies
- Chronic Kidney Disease and Diabetes
- Healthcare cost, quality, practices
- Adaptive optics and wavefront sensing
- Trace Elements in Health
- Pulsars and Gravitational Waves Research
- Vitamin D Research Studies
- Vitamin K Research Studies
Beth Israel Deaconess Medical Center
2014-2025
Harvard University
2008-2025
Hadassah Medical Center
2013-2023
Trieste Astronomical Observatory
2005-2022
Creative Research Enterprises (United States)
2016
Tufts University
2016
University of Vermont
2016
University of Washington
2016
VA San Diego Healthcare System
2016
Massachusetts Institute of Technology
2016
The Public European Southern Observatory Spectroscopic Survey of Transient Objects (PESSTO) began as a public spectroscopic survey in April 2012. We describe the data reduction strategy and products which are publicly available through ESO archive Data Release 1 (SSDR1). PESSTO uses New Technology Telescope with EFOSC2 SOFI to provide optical NIR spectroscopy imaging. target supernovae transients brighter than 20.5mag for classification. Science targets then selected follow-up based on...
We present and discuss the photometric spectroscopic evolution of peculiar SN 1998bw, associated with GRB 980425, through an analysis optical near-IR data collected at ESO-La Silla. The data, spanning period from day -9 to +376 (relative B maximum), have shown that this supernova (SN) was unprecedented, although somewhat similar 1997ef. Maximum expansion velocities as high 3 × 104 km s-1 some extent mask its resemblance other Type Ic SNe. At intermediate phases, between photospheric fully...
Increased carbamylation of serum albumin is associated with increased mortality in patients kidney failure.
Background and objectives Although venous congestion has been linked to renal dysfunction in heart failure, its significance a broader context not investigated. Design, setting, participants, & measurements Using an inception cohort of 12,778 critically ill adult patients admitted urban tertiary medical center between 2001 2008, we examined whether the presence peripheral edema on admission physical examination was associated with increased risk AKI within first 7 days critical illness. In...
Objectives: Although obesity is associated with risk for chronic kidney disease and improved survival, less known about the associations of acute injury post mortality. Design: In a single-center inception cohort almost 15,000 critically ill patients, we evaluated association severity, as well in-hospital 1-year survival. Acute was defined using Kidney Disease Outcome Quality Initiative criteria. Measurements Main Results: The prevalence rates normal, overweight, class I, II, III were 18.6%,...
Abstract Objective Although the consequences of chronic fluid retention are well known, those iatrogenic that occurs during critical illness have not been fully determined. Therefore, we investigated association between balance and survival in a cohort almost 16 000 individuals who survived an intensive care unit ( ICU ) stay large, urban, tertiary medical centre. Design Longitudinal analysis at discharge 90‐day post‐ survival. Measurements Associations stay, determined from electronic...
Whether critical care improvements over the last 10 years extend to all hospitals has not been described.
The consequences of low levels environmental lead exposure, as found commonly in US household water, have not been established.
We present BeppoSAX follow-up observations of GRB 980425 obtained with the Narrow Field Instruments (NFI) in 1998 April, May, and November. The first NFI observation has detected within 8' radius error box gamma-ray burst (GRB) an X-ray source positionally consistent supernova 1998bw, which exploded a day 980425, fainter source, not position supernova. former is following pointings exhibits decline factor 2 six months. If it associated SN this detection emission from Type I above keV. latter...
About 500 days after the explosion, light curve of Type Ia supernova SN 1998bu suddenly flattened, and at same time spectrum changed from typical nebular emission to a blue continuum with broad absorption features reminiscent early phases. We show that in analogy 1991T, this can be explained by emergence echo foreground dust cloud. Using simple model, we argue amount required consistently explain extinction has been estimated completely independent methods. Because similar luminosity but...
Using the Gemini South 8 m telescope, we obtained high-resolution 11.7 and 18.3 μm mid-IR images of SN 1987A on day 6526 since explosion. All emission arises from equatorial ring. Nearly contemporaneous spectra at 5-38 with Spitzer Space Telescope show that this is thermal silicate dust condensed out in red giant wind progenitor star. The temperature 166 K, emitting mass 2.6 × 10-6 M☉. Comparison image Chandra X-ray images, HST UV-optical ATCA radio synchrotron shows generally good...
We report the first result of a supernova search program designed to measure evolution rate with redshift. To make comparison local rates more significant we copied, as much possible, same computation recipes for measurements rates. Moreover, exploited multicolor images and photometric redshift technique characterize galaxy sample accurately estimate detection efficiency. Combining our data recently published SN Ia at different redshifts, derived first, direct measurement core collapse SNu [...
We present ultraviolet (UV) spectroscopy and photometry of four Type Ia supernovae (SNe 2004dt, 2004ef, 2005M, 2005cf) obtained with the UV prism Advanced Camera for Surveys on Hubble Space Telescope. This data set provides unique spectral time series down to 2000 Å. Significant diversity is seen in near-maximum-light spectra (∼2000–3500 Å) this small sample. The corresponding photometric data, together archival from Swift Ultraviolet/Optical Telescope observations, provide further evidence...
The equatorial ring of Supernova (SN) 1987A has been exposed to forward shocks from the SN blast wave, and it suggested that these have causing on-going destruction dust in ring. We obtained SOFIA FORCAST 11.1, 19.7 31.5 micron photometry SN\,1987A 2016. Compared with Spitzer measurements 10 years earlier, flux significantly increased. excess at appears be related Herschel 70 excess, which was detected 5 earlier. mass needed account for 31.5--70 is 3--7x10^-4 Msun, more than ten times larger...
Objectives: Treatment in a disproportionately minority-serving hospital has been associated with worse outcomes variety of illnesses. We examined the association treatment minority hospitals on patients sepsis across United States. Design: Retrospective cohort analysis. Disproportionately were defined as having twice relative patient population than surrounding geographical mean. Minority for Black and Hispanic populations identified based U.S. Census demographic information. A multivariate...
Although multiple recent studies have confirmed an association between chronic proton-pump inhibitor (PPI) use and hypomagnesaemia, the physiologic explanation for this remains uncertain. To address this, we investigated of PPI with urinary magnesium excretion.We measured 24-hour urine excretion in collections performed nephrolithiasis evaluation 278 consecutive ambulatory patients determined from contemporaneous medical records.There were 50 (18%) users at time collection. The mean daily...