The Quaternary History of the Northern Cumberland Peninsula, Baffin Island, N.W.T. Part III: The Late Glacial Deposits of Sulung and Itidlirn Valleys and Adjacent Parts of the Maktak-Narpaing Trough

1972 ◽  
Vol 9 (4) ◽  
pp. 366-374 ◽  
Author(s):  
R. E. Dugdale
Keyword(s):  
Cross Correlation ◽  
Phase 1 ◽  
Late Glacial ◽  
Lateral Moraine ◽  
Baffin Island ◽  
Phase 3 ◽  
Outlet Glacier ◽  
Valley Glacier ◽  
History Of ◽  
Quaternary History

Four moraine systems are recognized within the area. The oldest was deposited at the margin of a major outlet glacier about 600 m a.s.1 Local corrie glaciers in the Sulung and Itidlirn Valleys show three and two moraine systems respectively, which in part have over-ridden the lateral moraine. Studies of the degree of boulder weathering and the rounding of pebble edges on the four units allows cross-correlation between Itidlirn and Sulung Valleys. Weathering ratios are used to tentatively date the moraines as follows: lateral moraine of the outlet valley glacier, 43 000± years old; Phase 1 corrie moraine in Sulung Valley 35 000± years old; Phase 2 corrie moraines 23 000± years old and the youngest corrie moraines (Phase 3) 12 500± years old, as determined from weathering studies in adjacent valleys.

Late Quaternary glacial and interglacial environments of the Nechako River - Cheslatta Lake area, central British Columbia

2001 ◽  
Vol 38 (4) ◽  
pp. 719-731 ◽  
Author(s):  
A Plouffe ◽  
V M Levson
Keyword(s):  
British Columbia ◽  
Late Quaternary ◽  
Late Glacial ◽  
Lake Area ◽  
Glacial Lakes ◽  
Ice Flow ◽  
Coast Mountains ◽  
Quaternary Stratigraphy ◽  
History Of ◽  
Quaternary History

The Quaternary stratigraphy of the Nechako River – Cheslatta Lake area of central British Columbia is described and interpreted to reconstruct the late Quaternary history of the region. Exposures of glacial and nonglacial sediments deposited prior to the last glaciation (Fraser) are limited to three sites. Pollen assemblages from pre-Fraser nonglacial sediments at two of these sites reveal forested conditions around 39 000 BP. During the advance phase of the Fraser Glaciation, glacial lakes were ponded when trunk glaciers blocked some tributary valleys. Early in the glaciation, the drainage was free in easterly draining valleys. Subsequently, the easterly drainage was blocked either locally by sediments and ice or as a result of impoundment of the Fraser River and its tributaries east of the study area. Ice generally moved east and northeast from accumulation zones in the Coast Mountains. Ice flow was influenced by topography. Major late-glacial lakes developed in the Nechako River valley and the Knewstubb Lake region because potential drainage routes were blocked by ice.

Late Pleistocene Glaciations in the Northwestern Sierra Nevada, California

2002 ◽  
Vol 57 (3) ◽  
pp. 409-419 ◽  
Author(s):  
L. Allan James ◽  
Jon Harbor ◽  
Derek Fabel ◽  
Dennis Dahms ◽  
David Elmore
Keyword(s):  
Sierra Nevada ◽  
Late Glacial ◽  
Lateral Moraine ◽  
Riparian Ecosystems ◽  
Glacial Ice ◽  
Central California ◽  
Minimum Age ◽  
History Of ◽  
Ice Retreat ◽  
Moraine Ridge

AbstractPleistocene fluvial landforms and riparian ecosystems in central California responded to climate changes in the Sierra Nevada, yet the glacial history of the western Sierra remains largely unknown. Three glacial stages in the northwestern Sierra Nevada are documented by field mapping and cosmogenic radionuclide surface-exposure (CRSE) ages. Two CRSE ages of erratic boulders on an isolated till above Bear Valley provide a limiting minimum age of 76,400±3800 10Be yr. Another boulder age provides a limiting minimum age of 48,800±3200 10Be yr for a broad-crested moraine ridge within Bear Valley. Three CRSE ages producing an average age of 18,600±1180 yr were drawn from two boulders near a sharp-crested bouldery lateral moraine that represents an extensive Tioga glaciation in Bear Valley. Nine CRSE ages from striated bedrock along a steep valley transect average 14,100±1500 yr and suggest rapid late-glacial ice retreat from lower Fordyce Canyon with no subsequent extensive glaciations. These ages are generally consistent with glacial and pluvial records in east-central California and Nevada.

The Quaternary History of Northern Cumberland Peninsula, Baffin Island, N.W.T. Part I: The Late- and Neoglacial Deposits of the Akudlermuit and Boas Glaciers

1972 ◽  
Vol 9 (4) ◽  
pp. 403-414 ◽  
Author(s):  
P. Carrara ◽  
J. T. Andrews
Keyword(s):  
Ice Cores ◽  
Equilibrium Line ◽  
Baffin Island ◽  
The South ◽  
Lichen Cover ◽  
History Of ◽  
Quaternary History

Moraines of local glaciers predating the Neoglacial occur in sections of northern Cumberland Peninsula. A study of these deposits is reported for the area between the heads of Quajon and Narpaing Fiords. A chronology is developed based on lichenometry, percent of lichen cover, and the weathering of boulders and pebbles. Initial dating is done by lichenometry and dates older than about 6000 BP are attempted by establishing rates of weathering. About 12 500 BP glaciers existed in both south- and north-facing corries with an equilibrium line at 850 m a.s.1. During the next 5000 years the south-facing glaciers retreated and disappeared. About 7000 BP, moraines were deposited in front of the Akuldermnit and Boas glaciers— these moraines are no longer ice-cored. The equilibrium line lay between 850 and 975 m a.s.1. A 'warm' interval followed and the ice cores melted. This was followed by an early Neoglacial advance, dated about 3800 BP for the period of moraine stabilization; after a 2000 year interval four younger readvances are recorded. All Neoglacial moraines are ice-cored. During the last few decades the equilibrium line has risen.

Report on Land Reform in El Salvador

1982 ◽  
Vol 4 (2) ◽  
pp. 13-13 ◽  
Keyword(s):  
El Salvador ◽  
Land Reform ◽  
Phase 1 ◽  
Phase 2 ◽  
Poverty Level ◽  
Phase 3 ◽  
Current Program ◽  
History Of ◽  
The Individual ◽  
The Right

"Profound rural misery will not end," observes Martin Diskin of M. I. T. in his evaluation of land reform in El Salvador. Writing in the Fall issue of Culture and Agriculture, Diskin faults the current program on two accounts. First, "no significant restructuring of rural El Salvador is possible with this plan." The loopholes (the "right of reserve" of former owners to exclude up to 150 hectares from expropriation under Phase 1 of the plan) and insufficiency (Phase 3, "Land to the Tiller," conveys too little acreage to the individual tiller to have any impact on the poverty level) of the program is evident in the texts of the decrees themselves, Diskin notes. Second, implementation has been so poor as to effectively neutralize whatever possibilities the program might have had. Of the announced three phases, Phase 2 has been, in the government's words, "suspended," and Phase 3 is moving slowly through cumbersome and inefficient procedures. "The prognosis for this ‘most sweeping Agrarian reform in the history of Latin America’ is dismal," Diskin concludes.

The INQUA Loess Commission as a Central European Enterprise

2010 ◽  
Vol 2 (1) ◽  
Author(s):  
Ian Smalley ◽  
Slobodan Markovic ◽  
Ken O’Hara-Dhand
Keyword(s):  
Central Europe ◽  
Phase 1 ◽  
Small Scale ◽  
Phase 2 ◽  
International Union ◽  
Phase 3 ◽  
Quaternary Period ◽  
Central European ◽  
History Of ◽  
Working Groups

AbstractThe International Union of Quaternary Research (INQUA) organized the study and consideration of the Quaternary Period (the last 2.6 million years in Earth’s history) via a set of commissions, sub-commissions, working groups, projects and programmes. One of the most successful and best records was the Loess Commission (LC) which functioned assub-commission and then commission from 1961 to 2003, resulting in 40 years of useful activity. The history of the LC can be divided into three phases: 1, from 1961–1977 when the President was Julius Fink; 2, from 1977–1991, with President Marton Pecsi; 3, from 1991–2003 with Presidents An Zhi-Sheng and Ian Smalley.Fink, from Vienna, and Pecsi, from Budapest, gave the LC a distinctly Central European aspect. The nature of loess in Central Europe influenced the nature of the LC but the settings for phases 1 and 2 were quite distinct. Phase 1 was a small scale academic operation, carried out in German. As phase 2 began in 1977 the scope expanded and Central Europe became a base for worldwide loess studies. where the LC language changed to English. Phase 2 was run from a National Geographical Institute and demonstrated a different approach to loess research, although the basic programmes of continent-wide mapping and stratigraphy remained the same. The Commission benefited from this change of style and emphasis. In phase 3 the administration moved away from Central Europe but the Finkian ethos remained solid.

Geomorphology and Quaternary History of the Mackenzie River Valley near Fort Good Hope, N.W.T., Canada

1973 ◽  
Vol 10 (1) ◽  
pp. 26-41 ◽  
Author(s):  
J. Ross Mackay ◽  
W. H. Mathews
Keyword(s):  
Late Glacial ◽  
Sharp Change ◽  
Radiocarbon Dates ◽  
Plunge Pool ◽  
Free Drainage ◽  
History Of ◽  
Quaternary History ◽  
Abandoned Channels ◽  
Floodplain Sediments ◽  
Mackenzie River

The Mackenzie River displays a sharp change in geomorphic character at The Ramparts, a postglacially-developed rock-walled canyon near Fort Good Hope, N.W.T. Upstream for at least 70 km the river is cut into late-glacial and early postglacial lacustrine, deltaic, and floodplain sediments with radiocarbon dates of 11 000 to 11 500 years. These sediments are overlain by peat dating back 6120 radiocarbon years. Downstream the river reoccupies, for more than 350 km, a Pleistocene channel containing glacial and fluvial sediments yielding only dates beyond the range of carbon dating. Abandoned channels west of The Ramparts record the overflow, in early postglacial time, from a rock-rimmed lake athwart the newly developed Mackenzie drainage. The deepest of the channels, believed to have been abandoned in mid-postglacial time, contained a major waterfall with its plunge-pool floor close to present sea level. Free drainage from the foot of the falls to the ocean at the time it operated is indicated. Erosion continues along the Mackenzie River above The Ramparts but some aggradation occurs below it. Permafrost thaw and heavy rainfall contribute to landsliding along the river banks in both segments.

PENERAPAN MODEL QUANTUM LEARNING UNTUK MENINGKATKAN HASIL BELAJAR AUTOCAD SISWA KELAS X TEKNIK PEMESINAN SMK NEGERI 1 STABAT

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Abdul Hasan Saragih
Keyword(s):  
Positive Response ◽  
Phase 1 ◽  
First Grade ◽  
Learning Model ◽  
Second Phase ◽  
Phase 2 ◽  
Phase 3 ◽  
The Third ◽  
Third Phase ◽  
Quantum Learning

This classroom research was conducted on the autocad instructions to the first grade of mechinary class of SMK Negeri 1 Stabat aiming at : (1) improving the student’ archievementon autocad instructional to the student of mechinary architecture class of SMK Negeri 1 Stabat, (2) applying Quantum Learning Model to the students of mechinary class of SMK Negeri 1 Stabat, arising the positive response to autocad subject by applying Quantum Learning Model of the students of mechinary class of SMK Negeri 1 Stabat. The result shows that (1) by applying quantum learning model, the students’ achievement improves significantly. The improvement ofthe achievement of the 34 students is very satisfactory; on the first phase, 27 students passed (70.59%), 10 students failed (29.41%). On the second phase 27 students (79.41%) passed and 7 students (20.59%) failed. On the third phase 30 students (88.24%) passed and 4 students (11.76%) failed. The application of quantum learning model in SMK Negeri 1 Stabat proved satisfying. This was visible from the activeness of the students from phase 1 to 3. The activeness average of the students was 74.31% on phase 1,81.35% on phase 2, and 83.63% on phase 3. (3) The application of the quantum learning model on teaching autocad was very positively welcome by the students of mechinary class of SMK Negeri 1 Stabat. On phase 1 the improvement was 81.53% . It improved to 86.15% on phase 3. Therefore, The improvement ofstudent’ response can be categorized good.

Clinical Drug Development for the Treatment of Pulmonary Arterial Hypertension: Collaboration With the Pharmaceutical Industry and Regulatory Agencies

2010 ◽  
Vol 9 (4) ◽  
pp. 214-219
Author(s):  
Robyn J. Barst
Keyword(s):  
Clinical Trials ◽  
Pulmonary Arterial Hypertension ◽  
Drug Development ◽  
Phase 1 ◽  
Preclinical Studies ◽  
Phase 2 ◽  
Phase 3 ◽  
Preclinical Testing ◽  
New Drug ◽  
Pulmonary Arterial

Drug development is the entire process of introducing a new drug to the market. It involves drug discovery, screening, preclinical testing, an Investigational New Drug (IND) application in the US or a Clinical Trial Application (CTA) in the EU, phase 1–3 clinical trials, a New Drug Application (NDA), Food and Drug Administration (FDA) review and approval, and postapproval studies required for continuing safety evaluation. Preclinical testing assesses safety and biologic activity, phase 1 determines safety and dosage, phase 2 evaluates efficacy and side effects, and phase 3 confirms efficacy and monitors adverse effects in a larger number of patients. Postapproval studies provide additional postmarketing data. On average, it takes 15 years from preclinical studies to regulatory approval by the FDA: about 3.5–6.5 years for preclinical, 1–1.5 years for phase 1, 2 years for phase 2, 3–3.5 years for phase 3, and 1.5–2.5 years for filing the NDA and completing the FDA review process. Of approximately 5000 compounds evaluated in preclinical studies, about 5 compounds enter clinical trials, and 1 compound is approved (Tufts Center for the Study of Drug Development, 2011). Most drug development programs include approximately 35–40 phase 1 studies, 15 phase 2 studies, and 3–5 pivotal trials with more than 5000 patients enrolled. Thus, to produce safe and effective drugs in a regulated environment is a highly complex process. Against this backdrop, what is the best way to develop drugs for pulmonary arterial hypertension (PAH), an orphan disease often rapidly fatal within several years of diagnosis and in which spontaneous regression does not occur?

scholarly journals How to improve emergency care to adults discharged within 24 hours? Acute Care planning in Emergency departments (The ACE study): a protocol of a participatory design study

BMJ Open ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. e041743
Author(s):  
Christina Østervang ◽  
Annmarie Touborg Lassen ◽  
Charlotte Myhre Jensen ◽  
Elisabeth Coyne ◽  
Karin Brochstedt Dieperink
Keyword(s):  
Patient Outcomes ◽  
Participatory Design ◽  
Hospital Admissions ◽  
Phase 1 ◽  
Family Needs ◽  
Focus Group Interviews ◽  
Phase 3 ◽  
Ace Study ◽  
Group Interviews ◽  
Improve Patient

IntroductionThe development of acute symptoms or changes in diseases led to feelings of fear and vulnerability and the need for health professional support. Therefore, the care provided in the acute medical and surgical areas of the emergency department (ED) is highly important as it influences the confidence of patients and families in managing everyday life after discharge. There is an increase in short-episode (<24 hours) hospital admissions, related to demographic changes and a focus on outpatient care. Clear discharge information and inclusion in treatment decisions increase the patient’s and family’s ability to understand and manage health needs after discharge, reduces the risk of readmission. This study aims to identify the needs for ED care and develop a solution to improve outcomes of patients discharged within 24 hours of admission.Methods and analysisThe study comprises the three phases of a participatory design (PD). Phase 1 aims to understand and identify patient and family needs when discharged within 24 hours of admission. A qualitative observational study will be conducted in two different EDs, followed by 20 joint interviews with patients and their families. Four focus group interviews with healthcare professionals will provide understanding of the short pathways. Findings from phase 1 will inform phase 2, which aims to develop a solution to improve patient outcomes. Three workshops gathering relevant stakeholders are arranged in the design plus development of a solution with specific outcomes. The solution will be implemented and tested in phase 3. Here we report the study protocol of phase 1 and 2.Ethics and disseminationThe study is registered with the Danish Data Protection Agency (19/22672). Approval of the project has been granted by the Regional Committees on Health Research Ethics for Southern Denmark (S-20192000–111). Findings will be published in suitable international journals and disseminated through conferences.

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