Search results for "United States"
showing 10 items of 383 documents
Power estimation for non-standardized multisite studies
2016
A concern for researchers planning multisite studies is that scanner and T1-weighted sequence-related biases on regional volumes could overshadow true effects, especially for studies with a heterogeneous set of scanners and sequences. Current approaches attempt to harmonize data by standardizing hardware, pulse sequences, and protocols, or by calibrating across sites using phantom-based corrections to ensure the same raw image intensities. We propose to avoid harmonization and phantom-based correction entirely. We hypothesized that the bias of estimated regional volumes is scaled between sites due to the contrast and gradient distortion differences between scanners and sequences. Given this…
Services supérieurs et recomposition urbaine
2000
Since the 1980s, we have observed an increasing tendency o f specialized services like producer services to leave their « natural habitat » in the center o f large met ropolitan areas in order to re loc at e in suburban zones. This phenomenon is particularly apparen t in North American citi es and seems to be occurring around certain French cities too. This paperinvestigates the forms taken by this new trend, and the reasons behind it. Taking economic geography and economics of cities as our theoretical basis, we first describe the main forces deter mining the agglomeration o f producer services and their preference for certain big cities. Agglomeration factors are to be looked for not only…
Some determinants of the migration of professional manpower.
1975
Abstract Determinants of migration of professional manpower are investigated using data from a 1970 survey of immigrants to the United States. From a respondent’s stated “intent to stay” in the United States and five other characteristics a six-dimensional contingency table is formed. We find a well-fitting log-linear model for this table. Thus, we establish the importance of selected determinants of migration and present a table of predicted rates of intent to stay in the United States
Experienced health in older women with rheumatoid arthritis.
2007
ABSTRACT This study explored how older women with chronic illness and disability experience their own health. Data were collected in in-depth interviews with ten older women with rheumatoid arthritis. Data analysis and interpretation was carried out within a phenomenological-hermeneutic frame of understanding, which revealed five major themes: health as coping with everyday life, health as freedom, health as absence of inconvenience, health as togetherness and health as mental well-being. For older people with chronic illness and disability, good health found expression in general well-being. It was perceived as a state of equilibrium that the respondents sought to maintain through their ow…
CT coronary angiography at an ultra-low radiation dose (< 0.1 mSv): feasible and viable in times of constraint on healthcare costs
2013
Computed tomography coronary angiography (CTCA) has reached very high standards both in terms of diagnostic performance and radiation dose reduction. This commentary follows a report on CTCA using less than 0.1 mSv in selected patients. This is an extraordinary accomplishment, both for technology and for medicine. The difficult task is now to implement this tool in clinical practice so it can play the best possible role. CTCA can improve diagnostic pathways, can save money for healthcare systems and could even improve pharmacological therapy. All of this may happen, but it will require the combined effort of all the experienced operators in this field, including the referring clinicians. In…
Why is COVID-19 especially impacting the African American population?
2020
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus responsible for the ongoing coronavirus disease 2019 (COVID-19) pandemic, penetrates human cells through direct binding with ...
There is a relationship between obesity and COVID‐19 but more information is needed
2020
Abstract We read with particular interest your comments in Obesity regarding the Coronavirus‐19 (COVID‐19) epidemic (1) and a related manuscript by Simonnet et al. (2). Resolution of the specific relationship between obesity and COVID‐19, two existing public health epidemics, is critically needed to potentially prevent health systems worldwide from being overburdened. Few studies describing COVID‐19 with rates of obesity exist, and most are based on heterogeneous populations (Table 1) (2‐7). In cohort studies with COVID‐19 disease, obesity rates are generally reported as no higher than population‐based estimates; in contrast, subgroups of critically ill patients (e.g, intensive care unit (I…
Solving the Surveillance Problem
2017
This chapter examines the way surveillance is discussed in the leading Finnish newspaper Helsingin Sanomat after the revelations made by former NSA-contractor Edward Snowden. In 2013, Snowden provided journalists with documents that revealed the unexpected extent of surveillance conducted by security agencies such as the NSA. Drawing on Critical Discourse Studies and a Foucauldian view of discourse, this article understands media discussions following the Snowden revelations as discursive struggles where the legitimacy and future of surveillance are being constructed and debated. The article examines the ways the media formulates solutions to the problems posed by surveillance, and explores…
The interaction of language and thought in children's language acquisition: a crosslinguistic study
1997
The purpose of this research was to investigate the potential interaction of conceptual representations and linguistic systems in the process of language acquisition. Language–thought interactions were studied in 80 American, 48 Finnish and 48 Polish preschool children. The research focused on the conceptual and linguistic development of space and time. The spatial and temporal conceptual tasks were designed to measure the transition from experiential to inferential knowledge of space/time representations. In the linguistic domain, comprehension and production tests were used to evaluate the children's capacity to understand mono- and bi-referential location in space and time, where mono-re…
The generalizability of Older Adult Self-Report (OASR) syndromes of psychopathology across 20 societies
2020
Contains fulltext : 217516.pdf (Publisher’s version ) (Closed access) Objectives: As the world population ages, psychiatrists will increasingly need instruments for measuring constructs of psychopathology that are generalizable to diverse elders. The study tested whether syndromes of co-occurring problems derived from self-ratings of psychopathology by US elders would fit self-ratings by elders in 19 other societies. Methods/design: The Older Adult Self-Report (OASR) was completed by 12 826 adults who were 60 to 102 years old in 19 societies from North and South America, Asia, and Eastern, Northern, Southern, and Western Europe, plus the United States. Individual and multigroup confirmatory…