8,414 research outputs found
Health Promotion for Older Adults: What Is the Potential? 11th Annual Herbert Lourie Memorial Lecture on Health Policy
As a greater number of people reach old age, medicine is challenged to develop new approaches to this population. Health promotion, not just treatment of disease but improving the quality of life for older persons, must play a role. What happens to individuals in terms of health status as they get older, and what are the implications for health care needs? Where should we focus to get the biggest benefits in terms of health promotion? Overall, we have learned a tremendous amount over the last 25 years about the components of health as people get older, and what modifies their health. We know, for example, that the health status of older adults is a composite of the chronic diseases that they may have, of how many chronic diseases are present, and of underlying physiological changes of aging, such as a decline in muscle strength, that appear to be an intrinsic part of the aging process. Disability can result from chronic disease. In addition, people are more susceptible to acute illnesses and injuries as they get older.
Alternating groups and moduli space lifting Invariants
Main Theorem: Spaces of r-branch point 3-cycle covers, degree n or Galois of
degree n!/2 have one (resp. two) component(s) if r=n-1 (resp. r\ge n). Improves
Fried-Serre on deciding when sphere covers with odd-order branching lift to
unramified Spin covers. We produce Hurwitz-Torelli automorphic functions on
Hurwitz spaces, and draw Inverse Galois conclusions. Example: Absolute spaces
of 3-cycle covers with +1 (resp. -1) lift invariant carry canonical even (resp.
odd) theta functions when r is even (resp. odd). For inner spaces the result is
independent of r. Another use appears in,
http://www.math.uci.edu/~mfried/paplist-mt/twoorbit.html, "Connectedness of
families of sphere covers of A_n-Type." This shows the M(odular) T(ower)s for
the prime p=2 lying over Hurwitz spaces first studied by,
http://www.math.uci.edu/~mfried/othlist-cov/hurwitzLiu-Oss.pdf, Liu and
Osserman have 2-cusps. That is sufficient to establish the Main Conjecture: (*)
High tower levels are general-type varieties and have no rational points.For
infinitely many of those MTs, the tree of cusps contains a subtree -- a spire
-- isomorphic to the tree of cusps on a modular curve tower. This makes
plausible a version of Serre's O(pen) I(mage) T(heorem) on such MTs.
Establishing these modular curve-like properties opens, to MTs, modular
curve-like thinking where modular curves have never gone before. A fuller html
description of this paper is at
http://www.math.uci.edu/~mfried/paplist-cov/hf-can0611591.html .Comment: To appear in the Israel Journal as of 1/5/09; v4 is corrected from
proof sheets, but does include some proof simplification in \S
Cumulative effect of Weibel-type instabilities in counterstreaming plasmas with non-Maxwellian anisotropies
Counterstreaming plasma structures are widely present in laboratory
experiments and astrophysical systems, and they are investigated either to
prevent unstable modes arising in beam-plasma experiments or to prove the
existence of large scale magnetic fields in astrophysical objects.
Filamentation instability arises in a counterstreaming plasma and is
responsible for the magnetization of the plasma. Filamentationally unstable
mode is described by assuming that each of the counterstreaming plasmas has an
isotropic Lorentzian (kappa) distribution. In this case, the filamentation
instability growth rate can reach a maximum value markedly larger than that for
a a plasma with a Maxwellian distribution function. This behaviour is opposite
to what was observed for the Weibel instability growth rate in a bi-kappa
plasma, which is always smaller than that obtained for a bi-Maxwellian plasma.
The approach is further generalized for a counterstreaming plasma with a
bi-kappa temperature anisotropy. In this case, the filamentation instability
growth rate is enhanced by the Weibel effect when the plasma is hotter in the
streaming direction, and the growth rate becomes even larger. These effects
improve significantly the efficiency of the magnetic field generation, and
provide further support for the potential role of the Weibel-type instabilities
in the fast magnetization scenarios
Health Promotion for Older Adults: What Is the Potential?
As a greater number of people reach old age, medicine is challenged to develop new approaches to this population. Health promotion, not just treatment of disease but improving the quality of life for older persons, must play a role. What happens to individuals in terms of health status as they get older, and what are the implications for health care needs? Where should we focus to get the biggest benefits in terms of health promotion? Overall, we have learned a tremendous amount over the last 25 years about the components of health as people get older, and what modifies their health. We know, for example, that the health status of older adults is a composite of the chronic diseases that they may have, of how many chronic diseases are present, and of underlying physiological changes of aging, such as a decline in muscle strength, that appear to be an intrinsic part of the aging process. Disability can result from chronic disease. In addition, people are more susceptible to acute illnesses and injuries as they get older
UNITING U.S. AGENCIES TO FIGHT THE ILLICIT USE OF CRYPTOCURRENCY
In 2022, the Biden administration published an executive order in which the growing use of digital assets was deemed a national security threat. While this thesis focuses on cryptocurrency, it is more broadly about how the United States can—and should—employ a whole-of-government approach to counter a continuously evolving and adapting threat environment. This thesis begins by examining several assumptions regarding malign actors’ adaptations, the adoption and use of emerging technologies by these actors, and strategies for the United States in applying its instruments of power to combat these developments. The research assumes that many adversarial entities engage in multiple activities, such as terrorism, insurgency, and criminality; as these organizations form new alliances, they are also developing new evasion techniques; and this increasingly amorphous threatscape, defined by new malign alliances and technological tools, will require the United States to utilize the entire homeland security enterprise, from the Department of Defense to law enforcement, to confront these actors. This thesis utilizes these assumptions as a foundation to construct an informed policy options analysis that puts forth potential, long-term frameworks to counter this growing diversity of threat actors and their use of increasingly technical and sophisticated tools of evasion.Civilian, Department of Homeland SecurityApproved for public release. Distribution is unlimited
Differenzialdiagnose Nausea und Erbrechen
Zusammenfassung: Nausea und Erbrechen sind häufig. Sie können eine physiologische Antwort auf ein exogenes Toxin sein, aber auch Ausdruck einer organischen, psychischen oder funktionellen Erkrankung. Trotz der Fülle der Differenzialdiagnose gelingt es meist durch sorgfältige Anamnese und wenige Untersuchungen, den Auslöser zu finden. Die Ursachen akuter Beschwerden unterscheiden sich teilweise von denen chronischer. Bei Frauen im gebärfähigen Alter ist eine Schwangerschaft auszuschließen. Eine symptomatische Therapie kann bereits zu Beginn eingeleitet werden. Die Klärung chronischer Ursachen ist schwieriger. Funktionstests wie die Messung der Magenentleerung ergänzen die Diagnostik. Sie sollen nur in spezialisierten Zentren mit entsprechender Erfahrung durchgeführt werden. Ruminieren und Regurgitation sind von Erbrechen abzugrenzen. Findet sich keine Ursache für die Beschwerden, kann von einer funktionellen Erkrankung ausgegangen werde
Optical propagation measurements at Emerson Lake, 1968
Optical propagation measurements in inhomogeneous atmosphere at Emerson Lake, California for optical propagation theory validity testin
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