An Investigation of the Mill Creek Earthquakes of October, 1935

The purpose of this investigation has been to determine the characteristics of the seismic disturbances which occurred near Mount San Gorgonio, San Bernardino County, California on October 22, October 24, and intermittently thereafter until October 31. The principal shock occurred at 6:47:56.1 Pacific Standard Time on October 24, 1935. Travel-times for several phases have been determined, and the thickness of layers have been determined, and the thicknesses of layers for Southern California have been calculated

Beginner’s Luck? A first-time director tackles a york play

2006 was a year of firsts for me: My first term teaching abroad; my first summer living in Cambridge; and, my first opportunity to direct a play. Although I had acted in many plays in the past, and had participated in many activities characteristic of school student productions – painting sets, building scaffolding, and maintaining props – I had never even run a sound or lighting cue, and had certainly never directed. Like all amateur actors, I had made an occasional suggestion, and once or t..

Geologic Map of Le Brun and Mint Canyon Quadrangles: Supplement 1 from "Geology of the Le Brun and Mint Canyon quadrangles, California" (Thesis)

The Le Brun and Mint Canyon Quadrangles comprise an area of approximately fifty-two square miles. The northern part of the Le Brun Quadrangle is made up of three fundamental geologic units. Steeply dipping Tertiary sediments form a wedge, which narrows eastward, between an igneous complex to the north and a metamorphic series to the south. Three rock units are all bounded by steep, northerly dipping faults. The faulting is post-Oligocene and pre-Pleistocene in age. Everywhere the faults are truncated by an old land surface which is several stages removed from some of the more progressive land forms of the present cycle. The southern part of the Le Brun Quadrangle is composed largely of the metamorphic series which forms Sierra Pelona Ridge. In the northern part of the Mint Canyon Quadrangle, the sedimentary wedge is terminated by a series of intersecting faults which persist to the eastern edge of the area and continue into the San Andreas Rift, several miles east of the boundary of the Mint Canyon Quadrangle. The central portion of the Mint Canyon Quadrangle is formed by the metamorphic series and is expressed topographically by Sierra Pelona Ridge. In the southern part of this quadrangle, an intricate system of faulted igneous and sedimentary beds are exposed. Easterly, this fault system disappears

Geology of the Le Brun and Mint Canyon Quadrangles, California

The Le Brun and Mint Canyon Quadrangles comprise an area of approximately fifty-two square miles. The northern part of the Le Brun Quadrangle is made up of three fundamental geologic units. Steeply dipping Tertiary sediments form a wedge, which narrows eastward, between an igneous complex to the north and a metamorphic series to the south. Three rock units are all bounded by steep, northerly dipping faults. The faulting is post-Oligocene and pre-Pleistocene in age. Everywhere the faults are truncated by an old land surface which is several stages removed from some of the more progressive land forms of the present cycle. The southern part of the Le Brun Quadrangle is composed largely of the metamorphic series which forms Sierra Pelona Ridge. In the northern part of the Mint Canyon Quadrangle, the sedimentary wedge is terminated by a series of intersecting faults which persist to the eastern edge of the area and continue into the San Andreas Rift, several miles east of the boundary of the Mint Canyon Quadrangle. The central portion of the Mint Canyon Quadrangle is formed by the metamorphic series and is expressed topographically by Sierra Pelona Ridge. In the southern part of this quadrangle, an intricate system of faulted igneous and sedimentary beds are exposed. Easterly, this fault system disappears.</p

COVID-19 and vaccination induces changes in hospital activity in Malta, Q1 2020 to Q1 2021 : a population-based study

Background: COVID-19 has severely impacted global healthcare services. Malta has only one acute state hospital, Mater Dei Hospital (MDH), and at the time of writing is the most vaccinated country in Europe. Malta thus provides an ideal setting to assess the impact of COVID-19 on healthcare services at population level, including the impact of vaccination on hospital admissions.Methods: Hospital data was obtained as anonymised totals from MDH’s Clinical Performance Unit and the European Centre for Disease Prevention and Control. COVID-19-related data was obtained from the Ministry of Health dashboard. Comparative assessments were performed to explore associations between the COVID-19 situation, vaccination, and hospital activity. Poisson regression was used to model the counts of monthly accident and emergency (A&E), outpatient clinics attendances and hospital admissions.Results: A&E, hospital admissions, and outpatient clinics attendances declined (31.88%; 23.89%; 29.57%; p < 0.01 respectively) with onset of COVID-19 till April 2021 when compared to pre-COVID years (2017–2019). Admissions due to COVID-19 initially increased in parallel to the population’s COVID positivity. Vaccination rollout led to a decline in COVID-19 admissions.Conclusions: The drastic drop in admissions and outpatient attendees was expected but not for A&E attendees as acutely ill patients should still have attended. This is of public health concern since delayed or deferred medical management increases population morbidity, mortality and increases the eventual burden on the healthcare system. Mass vaccination saw the return to normality with an increase in A&E burden.peer-reviewe