306 research outputs found
HAPEX-Sahel : a large-scale study of land-atmosphere interactions in the semi-arid tropics
The Hydrologic Atmospheric Pilot EXperiment
in the Sahel (HAPEX-Sahel) was carried out in Niger, West Africa, during 1991 -
1992, with an intensive observation period (IOP) in August - October 1992. It
aims at improving the parameterization of land surface atmosphere interactions
at the Global Circulation Model (GCM) gridbox scale. The experiment combines
remote sensing and ground based measurements with hydrological and
meteorological modelling to develop aggregation techniques for use in large
scale estimates of the hydrological and meteorological behaviour of large areas
in the Sahel. The experimental strategy consisted of a period of intensive
measurements during the transition period of the rainy to the dry season, backed
up by a series of long term measurements in a 1° by 1° square in Niger. Three
"supersites" were instrumented with a variety of hydrological and
(micro) meteorological equipment to provide detailed information on the surface
energy exchange at the local scale. Boundary layer measurements and aircraft
measurements were used to provide information at scales of 100 - 500 km2.
All relevant remote sensing images were obtained for this period. This programme
of measurements is now being analyzed and an extensive modelling programme is
under way to aggregate the information at all scales up to the GCM grid box
scale. The experimental strategy and some preliminary results of the IOP are
described
Geographical, biological and remote sensing aspects of the hydrologic atmospheric pilot experiment in the Sahel (HAPEX-Sahel)
Preparing for Participation in SPEED: An ASEE Initiative for a Nationally Recognized Development Program for Engineering Educators
Engineering and engineering technology departments have a long history of adapting to changingsocietal needs so that their graduates will possess relevant skills and knowledge vital to potentialemployers. In parallel with the changing engineering and engineering technology curriculum,there has also been a long-standing call to strengthen engineering and technology educators’capabilities and preparation to perform the task of educating students. This latter call, however,had remained virtually unanswered for more than a century. A recent response to this call isSPEED: Strengthening the Performance of Engineering and Engineering Technology Educatorsacross the Disciplines. SPEED is a concept for a formal, nationally recognized continuingeducation program for engineering and technology educators being developed with the supportof the ASEE. In the introductory part of this paper, the authors briefly present an overview ofprevious work which has led to the development of a vision for SPEED and its conceptualdesign. This overview includes comments on current professional development opportunities forfaculty across the world, and the challenges, opportunities and critical elements that would beassociated with a successful professional educational development program. We then offer a setof core competencies areas which would likely be required of faculty who finish suchprofessional development. Finally, we conclude with some specifics about the proposed SPEEDprogram. We offer some details on its current design and describe plans to engage relevantconstituencies and create buy-in from the community
SPEED - An ASEE Initiative for a Nationally Recognized Development Program for Engineering Educators
Engineering and engineering technology departments have a long history of adapting to changing societal needs so that their graduates will possess relevant skills and knowledge vital to potential employers. In parallel with the changing engineering and engineering technology curriculum, there has also been a long-standing call to strengthen engineering and technology educators’ capabilities and preparation to perform the task of educating students. This latter call, however, had remained virtually unanswered for more than a century. A recent response to this call is SPEED: Strengthening the Performance of Engineering and Engineering Technology Educators across the Disciplines. SPEED is a concept for a formal, nationally recognized continuing education program for engineering and technology educators being developed with the support of the ASEE. In the introductory part of this paper, the authors briefly present an overview of previous work which has led to the development of a vision for SPEED and its conceptual design. This overview includes comments on current professional development opportunities for faculty across the world, and the challenges, opportunities and critical elements that would be associated with a successful professional educational development program. We then offer a set of core competencies areas which would likely be required of faculty who finish such professional development. Finally, we conclude with some specifics about the proposed SPEED program. We offer some details on its current design and describe plans to engage relevant constituencies and create buy-in from the community
Study on COgnition and Prognosis in the Elderly (SCOPE): baseline characteristics
Blood Press. 2000;9(2-3):146-51.
Study on COgnition and Prognosis in the Elderly (SCOPE): baseline characteristics.
Hansson L, Lithell H, Skoog I, Baro F, Bánki CM, Breteler M, Castaigne A, Correia M, Degaute JP, Elmfeldt D, Engedal K, Farsang C, Ferro J, Hachinski V, Hofman A, James OF, Krisin E, Leeman M, de Leeuw PW, Leys D, Lobo A, Nordby G, Olofsson B, Opolski G, Prince M, Reischies FM.
University of Uppsala, Department of Public Health, Clinical Hypertension Research, Sweden.
Abstract
The Study on COgnition and Prognosis in the Elderly (SCOPE) is a multi-centre, prospective, randomized, double-blind, parallel-group study. The primary objective of SCOPE is to assess the effect of the angiotensin II type 1 (AT1) receptor blocker, candesartan cilexetil 8-16 mg once daily, on major cardiovascular events in elderly patients (70-89 years of age) with mild hypertension (DBP 90-99 and/or SBP 160-179 mmHg). The secondary objectives of the study are to test the hypothesis that antihypertensive therapy can prevent cognitive decline (as measured by the Mini Mental State Examination, MMSE) and dementia, and to assess the effect of therapy on total mortality, myocardial infarction (MI), stroke, renal function, and hospitalization. A total of 4964 patients from 15 participating countries were recruited during the randomization phase of SCOPE, exceeding the target population of 4000. The mean age of the patients at enrolment was 76 years, the ratio of male to female patients was approximately 1:2, and 52% of patients were already being treated with an antihypertensive agent at enrolment. The majority of patients (88%) were educated to at least primary school level. At randomization, mean sitting blood pressure values were SBP 166 mmHg and DBP 90 mmHg, and the mean MMSE score was 28. Previous cardiovascular disease in the study population included myocardial infarction (4%), stroke (4%) and atrial fibrillation (4%). Men, more often than women, had a history of previous MI, stroke and atrial fibrillation. A greater percentage of men were smokers (13% vs 6% in women) and had attended university (11% vs 3% of women). Of the randomized patients, 21% were 80 years of age. In this age group smoking was less common (4% vs 10% for 70-79-year-olds) and fewer had attended university (4% vs 7% for 70-79-year-olds). The incidence of MI was similar in both age groups. However, stroke and atrial fibrillation had occurred approximately twice as frequently in the older patients. The patients' mean age at baseline was similar in the participating countries, and most countries showed the approximate 1:2 ratio for male to female patients. There was also little inter-country variation in terms of mean SBP, DBP or MMSE score. However, there was considerable regional variation in the percentage of patients on therapy prior to enrolment.
PMID: 10855739 [PubMed - indexed for MEDLINE
Minutes of a Regular Meeting of the Board of Directors of Citigroup Inc
Those present at Citigroup\u27s regular meeting of their Board of Directors by invite included: Ms. Krawcheck, and Messrs. Alexander, Banga, Bushnell, Crittenden, Druskin, Freiberg, Helfer, Kaden, Klein, Medina-Mora, Pandit, Rhodes, and Volk Included as an attachment to this set of meeting minutes is a memorandum to the Citigroup\u27s Board of Directors regarding the approval of dividend rates and declaring dividends payable to holders of Citigroup Inc. Preferred Stoc
Examination and prognostic implications of the unique microenvironment of breast cancer brain metastases
Purpose: Brain metastases (BM) are a complication of advanced breast cancer (BC). Histology of melanoma BM offers prognostic value; however, understanding the microenvironment of breast cancer brain metastases (BCBM) is less characterized. This study reports on four histological biomarkers, gliosis, immune infiltrate, hemorrhage, necrosis, and their prognostic significance in BCBM. Methods: A biobank of 203 human tissues from patients who underwent craniotomy for BCBM was created across four academic institutions. Degree of gliosis, immune infiltrate, hemorrhage, and necrosis were identified and scored via representative H&E stain (0–3+). Overall survival (OS) was estimated using the Kaplan–Meier method. Cox proportional hazards regression evaluated prognostic value of the biomarkers in the context of standard clinical characteristics. Results: BCBM subtype (available for n = 158) was 36% Her2+, 26% hormone receptor (HR)+/Her2− 38% HR−/Her2− (triple negative, TN). Gliosis was observed in 82% (116/141) of BCBM, with immune infiltrate 44% (90/201), hemorrhage 82% (166/141), and necrosis 87% (176/201). Necrosis was significantly higher in TNBC (p < 0.01). Presence of gliosis, immune infiltrate, and hemorrhage correlated with improved OS (p = 0.03, p = 0.03, p = 0.1), while necrosis correlated with inferior OS (p = 0.01). Improved OS was associated with gliosis in TN (p = 0.02), and immune infiltrate (p = 0.001) and hemorrhage (p = 0.07) in HER2+. In a multivariable model for OS, incorporating these biomarkers with traditional clinical variables improved the model fit (p < 0.001). Conclusion: Gliosis confers superior prognosis in TNBC BM; immune infiltrate and hemorrhage correlate with superior prognosis in HER2+ BCBM. Understanding the metastatic microenvironment of BCBM refines prognostic considerations and may unveil novel therapeutic strategies
Short-term movements and habitat preferences of sailfish, Istiophorus platypterus (Istiophoridae), along the southeast coast of Brazil
Clinical and molecular practice of European thoracic pathology laboratories during the COVID-19 pandemic. The past and the near future.
This study evaluated the consequences in Europe of the COVID-19 outbreak on pathology laboratories orientated toward the diagnosis of thoracic diseases.
A survey was sent to 71 pathology laboratories from 21 European countries. The questionnaire requested information concerning the organization of biosafety, the clinical and molecular pathology, the biobanking, the workload, the associated research into COVID-19, and the organization of education and training during the COVID-19 crisis, from 15 March to 31 May 2020, compared with the same period in 2019.
Questionnaires were returned from 53/71 (75%) laboratories from 18 European countries. The biosafety procedures were heterogeneous. The workload in clinical and molecular pathology decreased dramatically by 31% (range, 3%-55%) and 26% (range, 7%-62%), respectively. According to the professional category, between 28% and 41% of the staff members were not present in the laboratories but did teleworking. A total of 70% of the laboratories developed virtual meetings for the training of residents and junior pathologists. During the period of study, none of the staff members with confirmed COVID-19 became infected as a result of handling samples.
The COVID-19 pandemic has had a strong impact on most of the European pathology laboratories included in this study. Urgent implementation of several changes to the organization of most of these laboratories, notably to better harmonize biosafety procedures, was noted at the onset of the pandemic and maintained in the event of a new wave of infection occurring in Europe
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