465 research outputs found
RRS "Discovery" Cruise 106, 5 December - 22 December 1979. Trans-Atlantic passage with equipment trials and high-resolution seismic profiling
No full textRRS Discovery Cruise 111, Leg 1, 21 June - 3 July 1980. GLORIA survey of the Blake-Bahama Outer Ridges
No full textThe root causes of Stope Slippage at Kidd Mine, Canada
No full textKidd Mine has a production target of 2.5 million tonnes of ore per year in 2010. Seventy-five stopes are turned over to the next stope in order to achieve this annual production. Each turnover from stope to stope has an anticipated number of days based on the geomechanical relation between them. Due to the depth and size of the operation, it is crucial that this turnover takes place within the anticipated time to avoid delays in the mining sequence and cycle and set-backs in production. Currently delays in the stope turnover occur, this is called stope slippage. This thesis describes the occurrence and size of stope slippage in longhole mining, presents a system to identify and track the root causes of stope slippage and ranks the root causes of stope slippage at Kidd Mine. A flowchart was created to present the system of identifying and ranking root causes of stope slippage.Section Resource EngineeringCivil Engineering and Geoscience
King's Trough Flank: geological and geophysical investigations of its suitability for high-level radioactive waste disposal
No full textGreat Meteor East (distal Madeira Abyssal Plain): geological studies of its suitability for disposal of heat-emitting radioactive wastes
No full textVolney, 'The ruins' and 'Catechism of natural law'
No full textVolney was once as influential as Tom Paine, and the author of one of the most popular works of the French Revolutionary era. The Ruins makes an argument for popular sovereignty, couched in the alluring and accessible form of an Oriental dream-tale. A favourite of both Thomas Jefferson, who translated it, and the young Abraham Lincoln, the Ruins advances a scheme of radical, utopian politics premised upon the deconstruction of all the world’s religions. It was widely celebrated by radicals in Britain and America, and exercised an enormous influence on poets from Percy Bysshe Shelley to Walt Whitman for its indictments of tyranny and priestcraft. Volney instead advocates a return to natural precepts shorn of superstition, set out in his sequel, the Catechism of Natural Law. These days Volney enjoys a high profile in African-American Studies as a proponent of Black Egyptianism
ArtsQuest publicity postcard
No full textThe BSC Arts and Communications Department welcomes you to ArtsQuest 2013, a celebration fo music, art, theater, film and literature. Join us for events featuring students and guest artists. Guest artists include: Six Appeal (men's vocal group), author & graphic designer Chip Kidd, and the Paper Birds Theatre Company
Lithostratigraphic applications for magnetic susceptibility logging of deep-sea sediment cores: examples from ODP Leg 115
No full textWhole-core (WC) logging of low-field magnetic susceptibility (MS) is an extremely simple, rapid and non-destructive method of acquiring a quantifiable, lithologically related signal which is ideally suited to the task of correlating between deep-sea sediment sequences recovered from related holes at ODP sites. In addition to identifying coring irregularities such as unrecorded gaps in the recovered sequence between cores, or repetition of sequence due to repenetration of the corer, WCMS profiling can be used to identify turbidite horizons and also intervals contaminated by ferrous metal artifacts from drilling (eg pipe rust). Inter-regional correlation between the WCMS profiles for holes drilled at different ODP sites is also possible in many instances, especially when lithological variations at each site are controlled by large scale palaeoceanographic, or global palaeoclimatic changes. -from Autho
Lithostratigraphic applications for magnetic susceptibility logging of deep-sea sediment cores: examples from ODP Leg 115
No full textWhole-core (WC) logging of low-field magnetic susceptibility (MS) is an extremely simple, rapid and non-destructive method of acquiring a quantifiable, lithologically related signal which is ideally suited to the task of correlating between deep-sea sediment sequences recovered from related holes at ODP sites. In addition to identifying coring irregularities such as unrecorded gaps in the recovered sequence between cores, or repetition of sequence due to repenetration of the corer, WCMS profiling can be used to identify turbidite horizons and also intervals contaminated by ferrous metal artifacts from drilling (eg pipe rust). Inter-regional correlation between the WCMS profiles for holes drilled at different ODP sites is also possible in many instances, especially when lithological variations at each site are controlled by large scale palaeoceanographic, or global palaeoclimatic changes. -from Autho
Biological sex disparities in Alzheimer's disease
No full textAlzheimer's disease is a highly complex and multifactorial neurodegenerative disorder, with age being the most significant risk factor. The incidence of Alzheimer's disease doubles every 5 years after the age of 65. Consequently, one of the major challenges in Alzheimer's disease research is understanding how the brain changes with age. Gaining insights into these changes could help identify individuals who are more prone to developing Alzheimer's disease as they age. Over the past 25 years, studies on brain aging have examined thousands of human brains to explore the neuronal basis of age-related cognitive decline. However, most of these studies have focused on adults over 60, often neglecting the critical menopause transition period. During menopause, women experience a substantial decline in ovarian sex hormone production, with a decrease of about 90% in estrogen levels. Estrogen is known for its neuroprotective effects, and its significant loss during menopause affects various biological systems, including the brain. Importantly, despite known differences in dementia risk between sexes, the impact of biological sex and sex hormones on brain aging and the development of Alzheimer's disease remains underexplored. [Abstract copyright: © 2024. The Author(s), under exclusive license to Springer Nature Switzerland AG.
- …
