Institution
University of Hawaii at Manoa
Education•Honolulu, Hawaii, United States•
About: University of Hawaii at Manoa is a education organization based out in Honolulu, Hawaii, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 13693 authors who have published 25161 publications receiving 1023924 citations.
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290 citations
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TL;DR: The 1783-1784 Laki tholeiitic basalt fissure eruption in Iceland was one of the greatest atmospheric pollution events of the past 250 years, with widespread effects in the northern hemisphere.
Abstract: The 1783-1784 Laki tholeiitic basalt fissure eruption in Iceland was one of the greatest atmospheric pollution events of the past 250 years, with widespread effects in the northern hemisphere. The degassing history and volatile budget of this event are determined by measurements of pre-eruption and residual contents of sulfur, chlorine, and fluorine in the products of all phases of the eruption. In fissure eruptions such as Laki, degassing occurs in two stages: by explosive activity or lava fountaining at the vents, and from the lava as it flows away from the vents. Using the measured sulfur concentrations in glass inclusions in phenocrysts and in groundmass glasses of quenched eruption products, we calculate that the total accumulative atmospheric mass loading of sulfur dioxide was 122 Mt over a period of 8 months. This volatile release is sufficient to have generated approximately 250 Mt of H2SO4 aerosols, an amount which agrees with an independent estimate of the Laki aerosol yield based on atmospheric turbidity measurements. Most of this volatile mass (approximately 60 wt.%) was released during the first 1.5 months of activity. The measured chlorine and fluorine concentrations in the samples indicate that the atmospheric loading of hydrochloric acid and hydrofluoric acid was approximately 7.0 and 15.0 Mt, respectively. Furthermore, approximately 75% of the volatile mass dissolved by the Laki magma was released at the vents and carried by eruption columns to altitudes between 6 and 13 km. The high degree of degassing at the vents is attributed to development of a separated two-phase flow in the upper magma conduit, and implies that high-discharge basaltic eruptions such as Laki are able to loft huge quantities of gas to altitudes where the resulting aerosols can reside for months, or even 1-2 years. The atmospheric volatile contribution due to subsequent degassing of the Laki lava flow is only 18 wt.% of the total dissolved in the magma, and these emissions were confined to the lowest regions of the troposhere and therefore important only over Iceland. This study indicates that determination of the amount of sulfur degassed from the Laki magma batch by measurements of sulfur in the volcanic products (the petrologic method) yields a result which is sufficient to account for the mass of aerosols estimated by other methods.
290 citations
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Marche Polytechnic University1, United Arab Emirates University2, Obafemi Awolowo University3, John Hunter Hospital4, Rambam Health Care Campus5, University of Hawaii at Manoa6, University of Santiago de Compostela7, University of California, San Diego8, Tbilisi State Medical University9, University of Maryland, Baltimore10, Russian National Research Medical University11, Virginia Commonwealth University12, State University of Campinas13, Mansoura University14, Yonsei University15, Ruhr University Bochum16, Inje University17, University of Southern California18, Erzincan University19, University of Belgrade20, Tel Aviv University21, Foothills Medical Centre22, Kyoto University23, Edendale Hospital24, University of Helsinki25, Universidad Nacional de Asunción26, University of Washington27, Pt. B.D. Sharma PGIMS Rohtak28, University of the West Indies29, University of Colorado Denver30, University of Ilorin31, Jordan University of Science and Technology32, University of Valle33, University of São Paulo34, Ehime University35, Tan Tock Seng Hospital36, Stavanger University Hospital37, University of Bergen38, Charles University in Prague39, Radboud University Nijmegen40, Harvard University41, Chang Gung University42, Sher-I-Kashmir Institute of Medical Sciences43, Royal Perth Hospital44
TL;DR: The aim of this paper is to promote global standards of care in IAIs and update the 2013 WSES guidelines for management of intra-abdominal infections.
Abstract: Intra-abdominal infections (IAIs) are common surgical emergencies and have been reported as major contributors to non-trauma deaths in the emergency departments worldwide. The cornerstones of effective treatment of IAIs are early recognition, adequate source control, and appropriate antimicrobial therapy. Prompt resuscitation of patients with ongoing sepsis is of utmost important. In hospitals worldwide, non-acceptance of, or lack of access to, accessible evidence-based practices and guidelines result in overall poorer outcome of patients suffering IAIs. The aim of this paper is to promote global standards of care in IAIs and update the 2013 WSES guidelines for management of intra-abdominal infections.
289 citations
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TL;DR: Correlations between manipulated (and rated) features of the threat stimulus and situation, and type of defensive behavior chosen, strongly supported a view that the patterning of defensivebehavior is similar for humans and non-human mammals.
289 citations
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TL;DR: In this article, the authors search for the vibrational absorption of H2 and CO toward infrared sources embedded in molecular clouds and find that the results are consistent with the H2 ortho-para ratio being equilibrated at the cloud temperature.
Abstract: Vibrational absorption by H2 and CO has been searched for toward infrared sources embedded in molecular clouds. H2 was detected toward NGC 2024 IRS 2 and possibly toward NGC 2264 (GL 989). CO was detected toward both sources. The results are consistent with the H2 ortho:para ratio being equilibrated at the cloud temperature. Toward NGC 2024, H2:CO = (3700(sub -2600)(sup +3100)) (2 sigma limits), and toward NGC 2264, H2:CO less than 6000. Approximately one-third of all carbon is in gas-phase CO.
289 citations
Authors
Showing all 13867 results
Name | H-index | Papers | Citations |
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Pulickel M. Ajayan | 176 | 1223 | 136241 |
Steven N. Blair | 165 | 879 | 132929 |
Qiang Zhang | 161 | 1137 | 100950 |
Jack M. Guralnik | 148 | 453 | 83701 |
Thomas J. Smith | 140 | 1775 | 113919 |
James A. Richardson | 136 | 363 | 75778 |
Donna Neuberg | 135 | 810 | 72653 |
Jian Zhou | 128 | 3007 | 91402 |
Eric F. Bell | 128 | 631 | 72542 |
Jorge Luis Rodriguez | 128 | 834 | 73567 |
Bin Wang | 126 | 2226 | 74364 |
Nicholas J. Schork | 125 | 587 | 62131 |
Matthew Jones | 125 | 1161 | 96909 |
Anthony F. Jorm | 124 | 798 | 67120 |
Adam G. Riess | 118 | 363 | 117310 |