2,145 research outputs found
Invited perspectives: Integrating hydrologic information into the next generation of landslide early warning systems
No full textAlthough rainfall-triggered landslides are initiated by subsurface hydro-mechanical processes related to the loading, weakening, and eventual failure of slope materials, most landslide early warning systems (LEWSs) have relied solely on rainfall event information. In previous decades, several studies demonstrated the value of integrating proxies for subsurface hydrologic information to improve rainfall-based forecasting of shallow landslides. More recently, broader access to commercial sensors and telemetry for real-time data transmission has invigorated new research into hydrometeorological thresholds for LEWSs. Given the increasing number of studies across the globe using hydrologic monitoring, mathematical modeling, or both in combination, it is now possible to make some insights into the advantages versus limitations of this approach. The extensive progress demonstrates the value of in situ hydrologic information for reducing both failed and false alarms through the ability to characterize infiltration during – as well as the drainage and drying processes between – major storm events. There are also some areas for caution surrounding the long-term sustainability of subsurface monitoring in landslide-prone terrain, as well as unresolved questions in hillslope hydrologic modeling, which relies heavily on the assumptions of diffuse flow and vertical infiltration but often ignores preferential flow and lateral drainage. Here, we share a collective perspective based on our previous collaborative work across Europe, North America, Africa, and Asia to discuss these challenges and provide some guidelines for integrating knowledge of hydrology and climate into the next generation of LEWSs. We propose that the greatest opportunity for improvement is through a measure-and-model approach to develop an understanding of landslide hydro-climatology that accounts for local controls on subsurface storage dynamics. Additionally, new efforts focused on the subsurface hydrology are complementary to existing rainfall-based methods, so leveraging these with near-term precipitation forecasts is a priority for increasing lead times.</p
Byrne Stanton letter to A.B. Stanson, January 16, 1904
No full textLetter from Byrne Stanton of Cincinnati, son of Dr. Benjamin Stanton of Salem, Ohio, to A. B. Stanson at the Periodical Division of the Library of Congress, in response to Stanson's recent inquiry concerning Lundy's anti-slavery periodicals. The letter details Lundy's publishing history and involvement in the abolitionist movement, leading up to his publication of the Genius of Universal Emancipation in 1821. A. B. Stanson, it seems, has been interested in acquiring a complete collection of the papers for the Library of Congress. Benjamin Lundy (1789-1839) was a prominent Quaker abolitionist best known for his development of abolitionist periodicals. His Genius of Universal Emancipation was first published in 1821 from his home in Mt. Pleasant, Ohio, and enjoyed a wide circulation across the antebellum United States. In the 1820s, the young William Lloyd Garrison came to work for The Genius. Benjamin Lundy traveled widely seeking subscriptions to The Genius, giving talks about the anti-slavery movement, and observing and documenting the conditions of enslaved people across the Americas. He was also involved in the establishment of freed slave colonies in Mexico
Public worship and practical theology in the work of Benjamin Keach (1640-1704)
No full textThe late seventeenth century was a critical and fruitful period
for the Particular Baptists of England. Severely persecuted following
the Restoration, toleration in 1689 brought its own perils.
Particular Baptists were fortunate in having several strong leaders,
especially the London trio of Hanserd Knollys, William Kiffin, and
Benjamin Keach. Such a small and severely persecuted group as the
Baptists could afford little time for academic pursuits, thus of
necessity most of their theology was practical in nature.
Benjamin Keach (1640-1704) was the most outstanding practical
theologian among the English Particular Baptists of the late
seventeenth century. This dissertation is a study of Keach, in
particular his writings on public worship and practical theology.
Although Keach was a prolific author, he has been almost completely
neglected by scholars.
After a biographical sketch of Keach, this study considers his
writings on public worship and practical theology. In the area of
worship, Keach made two outstanding contributions: First, he was the
most vocal apologist for Baptist views on Baptism of his period.
Secondly, and more importantly, his hymn writing and defense of hymn
singing broke new ground, not just for Baptists, but for English
Protestantism, in general. In addition to his contributions in these
areas, he also dealt with the laying on of hands and the sabbath day
worship controversy.
Keach's contributions to practical theology fall into two main
groups: his writings that concern religious education and those that
deal with polity. In addition to these, Keach's vigorous advocacy of
a high Calvinist soteriology are also considered under the rubric of
practical theology. Keach's most important (although not his most
positive) contribution in this area were his soteriological writings.
Although well within the bounds of orthodoxy, some of the tendencies
in Keach's soteriology were taken up by the following generation of
Baptist leaders and developed into a stultifying hyper-Calvinism that
handicapped Baptist evangelism and missions.
In the conclusion, Keach's contributions to a theory of practical
theology are considered
Ruha Benjamin, 2023
No full textRuha Benjamin is the Alexander Stewart 1886 Professor of African American Studies at Princeton University, founding director of the Ida B. Wells Just Data Lab, and author of the award-winning book Race After Technology: Abolitionist Tools for the New Jim Code, among many other publications. Her work investigates the social dimensions of science, medicine and technology with a focus on the relationship between innovation and inequity, health and justice, knowledge and power. She is the recipient of numerous awards and honors, including the Marguerite Casey Foundation Freedom Scholar Award and the President’s Award for Distinguished Teaching at Princeton. Her most recent book, Viral Justice: How We Grow the World We Want, winner of the 2023 Stowe Prize, was born out of the twin plagues of COVID-19 and police violence and offers a practical and principled approach to transforming our communities and helping us build a more just and joyful world.
Location: Ballroom, Inn at Ole Misshttps://egrove.olemiss.edu/meredith_lecture/1000/thumbnail.jp
Some new thoughts founded upon new principles, concerning a threefold motion of the earth. [electronic resource] : The rectification of the Kallender. The flowing and ebbing of the sea. The nature of the magnet. The variation of the compass. The cause of sea currents, and trade winds. The various motions of all the clestial orbs. The finding out the true place of the moon. And facilitating the discovery of the longitude. Not before thought of, or not offer'd to the World in this Manner. Most Humbly propos'd, and offer'd to the Consideration of the Learned and Ingenious, as Subjects of further Contemplation and Improvement. But in a more particular Manner to the Honourable, the Learned, and Ingenious Gentlemen of the Royal Society. By B. H. J.
No full textB. H. J. = Benjamin Habakkuk Jackson.Electronic reproduction.English Short Title Catalog,Reproduction of original from British Library
Supporting Data for “Why So Slow? Mechanistic Insights from Studies of a Poor Catalyst for Polymerization of ε-Caprolactone”
No full textThese files contain data along with associated output from instrumentation supporting all results reported in Stasiw, D. E.; Mandal, M.; Neisen, B. D.; Mitchell, L. A.; Cramer, C. J.; Tolman, W. B. Why so slow? Mechanistic insights from studies of a poor catalyst for polymerization of ε-caprolactone. Inorg. Chem., 2016, 56, 725–728. Polymerization of ε-caprolactone (CL) using an aluminum alkoxide catalyst (1) designed to prevent unproductive trans binding was monitored at 110 °C in toluene-d8 by 1H NMR and the concentration versus time data fit to a first-order rate expression. A comparison of t1/2 for 1 to values for many other aluminum alkyl and alkoxide complexes shows much lower activity of 1 toward polymerization of CL. Density functional theory calculations were used to understand the basis for the slow kinetics. The optimized geometry of the ligand framework of 1 was found indeed to make CL trans binding difficult: no trans-bound intermediate could be identified as a local minimum. Nor were local minima for cis-bound precomplexes found, suggesting a concerted coordination–insertion for polymer initiation and propagation. The sluggish performance of 1 is attributed to a high-framework distortion energy required to deform the “resting” ligand geometry to that providing optimal catalysis in the corresponding transition-state structure geometry, thus suggesting a need to incorporate ligand flexibility in the design of efficient polymerization catalysts..
Corresponding author for experimental data is William B. Tolman ([email protected]).
Corresponding author for computational data is Christopher J. Cramer ([email protected]).Funding for this project was provided by the Center for Sustainable Polymers at the University of Minnesota, a National Science Foundation (NSF)-supported Center for Chemical Innovation (Grant CHE-1413862). The X-ray diffraction experiments were performed using a crystal diffractometer acquired through NSF-MRI Award CHE-1229400. The authors acknowledge the MSI at the University of Minnesota for providing resources that contributed to the research results.Tolman, William, B; Cramer, Christopher, J; Stasiw, Daniel E; Mandal, Mukunda; Neisen, Benjamin D; Mitchell, Lauren A. (2017). Supporting Data for “Why So Slow? Mechanistic Insights from Studies of a Poor Catalyst for Polymerization of ε-Caprolactone”. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/D6F60H
The description and use of an universal microscope, answering all the purposes of single, compound, opake, and aquatic microscopes : with particular directions for the use and application of every part of a full and compleat apparatus, as represented and illustrated in a large copper plate
No full textby B. Marti
Employment accessibility and rising seas
No full textRecent projections suggest worst-case scenarios of more than six ft (1.8 m) of global mean sea-level rise by end of century, progressively making coastal flood events more frequent and more severe. The impact on transportation systems along coastal regions is likely to be substantial. An analysis of impacts for Atlantic and Cape May counties in southern New Jersey is conducted. The impact on accessibility to employment is analyzed using a dataset of sea-level increases merged with road network (TIGER) data and Census data on population and employment. Using measures of accessibility, it is shown how access will be reduced at the block-group level. An additional analysis of low and high income quartiles suggest that lower-income block groups will have greater reductions in accessibility. The implication is that increasing sea levels will have large impacts on people and the economy, and large populations will have access to employment disrupted well before their own properties or places of employment may begin to flood (assuming no adaptation).Peer reviewe
Tagging of Biomedical Articles on CiteULike: A Comparison of User, Author and Professional Indexing
No full textThis paper examines the context of online indexing from the viewpoint of three different groups: users, authors, and professional indexers. User tags, author keywords and descriptors were collected from academic journal articles, which were both indexed in Pubmed and tagged on CiteULike, and analysed. Descriptive statistics, informetric measures, and thesaural term comparison shows that there are important differences in the use of keywords between the three groups in addition to similarities which can be used to enhance support for search and browse. While tags and author keywords were found that matched descriptors exactly, other terms which did not match but provided important expansion to the indexing lexicon were found. These additional terms could be used to enhance support for searching and browsing in article databases as well as to provide invaluable data for entry vocabulary and emergent terminology for regular updates to indexing systems. Additionally, the study suggests that tags support organisation by association to task, projects and subject while making important connections to traditional systems which classify into subject categories
Captain Benjamin Bonneville's Wyoming Expedition the lost 1833 report
No full textIn 1832, Benjamin Bonneville led the first wagon train across the Continental Divide on the Oregon Trail. Financed by a rival of the Hudson's Bay Company, Bonneville and more than one hundred traders and trappers traveled from Fort Osage on the Missouri River, up to the Platte River and across present-day Wyoming. Washington Irving first gave the U.S. Army officer a brand by chronicling the three-year explorations in the 1837 book The Adventures of Captain Bonneville. Historians have long suspected that the captain, under the guise of commercial fur trading, was preparing for an eventual invasion of Mexico's California territory. Bonneville's 1833 report concerning his first year in the Wind River Range and beyond remained lost for almost a century before resurfacing in the 1920s. Author Jett B. Conner examines the intriguing details revealed in that historic document. --amazon.co
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