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What is the best management for patients with evidence of asymptomatic ischemia on exercise stress testing?
(Family Physicians Inquiries Network, 2007)
Patients with intermediate- or high-risk Duke Treadmill Score (DTS) on exercise stress testing (EST) should undergo myocardial perfusion imaging or exercise echocardiography, especially if they have abnormal values of ...
What's the best diagnostic evaluation of night sweats?
(Family Physicians Inquiries Network, 2007)
There is no single best evidence-based approach to the diagnostic evaluation of night sweats, given the limited number of studies on the subject. A detailed history, however, does appear to be the most important initial ...
What evaluation is best for an isolated, enlarged cervical lymph node?
(Family Physicians Inquiries Network, 2007)
The evaluation and follow-up of an isolated, enlarged cervical lymph node is determined by the presence of inflammation, duration, size, and associated symptoms. For patients with inflammatory symptoms (ie, fever, pain, ...
Should patients with acute DVT limit activity?
(Family Physicians Inquiries Network, 2010)
Ambulation, combined with compression of the affected extremity, appears to be safe for medically stable patients with deep venous thromboses (DVT) (strength of recommendation [SOR]: A, consistent randomized controlled ...
Should you test or treat partners of patients with gonorrhea, chlamydia, or trichomoniasis?
(Family Physicians Inquiries Network, 2010)
Empiric treatment of partners of female or heterosexual male patients diagnosed with gonorrhea or chlamydia using expedited partner therapy (having the index patient deliver therapy to the partner) decreases the risk of ...
What's the best treatment for pyogenic granuloma?
(Family Physicians Inquiries Network, 2010)
Simple surgical excision is associated with a low risk of recurrence, but often leaves a visible scar. Curettage or shave excision, with cautery, is more likely to succeed in 1 session than cryotherapy; both may leave a ...
What's the best way to motivate patients to exercise?
(Family Physicians Inquiries Network, 2010)
There is no single best strategy to motivate patients to exercise, given the lack of data from rigorous comparison studies. There are, however, several interventions for adults that are effective. They include: writing a ...
What are the best treatments for herpes labialis?
(Family Physicians Inquiries Network, 2007)
There are 3: valacyclovir, acyclovir, and topical penciclovir. Valacyclovir, 2g twice in 1 day taken during the prodromal stage of herpes labialis, reduces the episode duration and time to healing. Acyclovir, 400 mg, taken ...
Is DEET safe for children?
(Family Physicians Inquiries Network, 2005)
Reported evidence suggests that DEET use is safe for children older than 2 months, with only very rare incidence of major adverse effects (strength of recommendation [SOR]: C). Typically, a topical concentration between ...
Who should receive vertebroplasty?
(Family Physicians Inquiries Network, 2006)
Percutaneous vertebroplasty has been used to treat aggressive vertebral hemangiomas, osteoporotic vertebral compression fractures, and vertebral lesions from metastatic disease or myeloma. Consider it for patients with ...
How accurate is an MRI at diagnosing injured knee ligaments?
(Family Physicians Inquiries Network, 2010)
MRI is highly accurate in diagnosing injury to the anterior cruciate ligament (ACL) (strength of recommendation [SOR]: A, prospective blinded cohort studies) and posterior cruciate ligament (PCL) (SOR: B, limited number ...
Ubiquity of simplices in subsets of vector spaces over finite fields
(2007)
We prove that a sufficiently large subset of the $d$-dimensional vector space over a finite field with $q$ elements, $ {\Bbb F}_q^d$, contains a copy of every $k$-simplex. Fourier analytic methods, Kloosterman sums, and ...
Sums and products in finite fields: an integral geometric viewpoint
(2007)
We prove that if $A \subset {\Bbb F}_q$ is such that $$|A|>q^{{1/2}+\frac{1}{2d}},$$ then $${\Bbb F}_q^{*} \subset dA^2=A^2+...+A^2 d \text{times},$$ where $$A^2=\{a \cdot a': a,a' \in A\},$$ and where ${\Bbb F}_q^{*}$ ...
Time-dependent density-functional theory beyond the adiabatic approximation: Insights from a two-electron model system
(American Institute of Physics, 2006)
Most applications of time-dependent density-functional theory (TDDFT) use the adiabatic local-density approximation (ALDA) for the dynamical exchange-correlation potential Vxc(r,t). An exact (i.e., nonadiabatic) extension ...
Green building
(Rhetoric and Composition Program, University of Missouri--Columbia, 2010)
"Thinking Green" is the new buzzword of the twenty-first century. There are the green IBM commercials that demonstrate a substantial amount of money saved if a business, "goes green" the Mac commercial with the new energy ...
Complex pore spaces create record-breaking methane storage system for natural-gas vehicles
(American Institute of Physics, 2007)
It has been proposed that nearly space-filling networks of nanopores in biocarbon may provide a “sponge” for lowpressure,
high-capacity storage of methane CH4 for advanced transportation.1 Such pores, a few molecular ...
Transport and optical conductivity in dilute magnetic semiconductors
(Institute of Physics, 2009)
A theory of transport in spin and charge disordered media is developed, with a particular emphasis on dilute magnetic semiconductors. The approach is based on the equation of motion for the current-current response function ...
Enhanced hydrogen adsorption in boron substituted carbon nanospaces
(American Institute of Physics, 2009)
Activated carbons are one of promising groups of materials for reversible storage of hydrogen by physisorption. However, the heat of hydrogen adsorption in such materials is relatively low, in the range of about 4-8 kJ/mol, ...
Nonuniqueness in spin-density-functional theory on lattices
(American Physical Society, 2005)
In electronic many-particle systems, the mapping between densities and spin magnetizations, {n(r),m(r)}, and potentials and magnetic fields, {v(r),B(r)}, is known to be nonunique, which has fundamental and practical ...
Real-Time Electron Dynamics with Exact-Exchange Time-Dependent Density-Functional Theory
(American Physical Society, 2008)
The exact exchange potential in time- dependent density-functional theory is defined as an orbital functional through the time-dependent optimized effective potential (TDOEP) method. We numerically solve the TDOEP integral ...