Physiological evidence is presented that visual receptive fields in the primate eye are shaped like sum of a Gaussian function and its Laplacian. A new 'difference-of-offset-Gaussians' or DOOG neural mechanism was identified, which provided plausible for generating such derivative-like fields. The associated derivative model better approximation to data than did Gabor other competing models. model-free Wiener filter analysis independent confirmation these results. machine vision system...

OBJECTIVE--To determine the effect of oxpentifylline on healing venous ulcers leg. DESIGN--Double blind, randomised, prospective, placebo controlled, parallel group study. SETTING--Four outpatient clinics treating leg in England and Republic Ireland. PATIENTS--80 Consecutive patients with clinical evidence ulceration whom appreciable arterial disease was excluded by ratio ankle to brachial systolic pressure being greater than 0.8. INTERVENTIONS--All received either 400 mg three times a day...

Background and Objectives: Electronic health records (EHRs) have had mixed effects on the workflow of ambulatory primary care. In this study, we update previous research time required to care for patients in clinics with EHRs. Methods: We directly observed family physician (FP) attendings, residents, their 982 visits affiliated 10 residencies Residency Research Network Texas. The FPs were purposely chosen reflect a diversity patient styles. measured total visit time, previsit chart...

We propose a new set of priorities for quality management in primary care, acknowledging that payers and regulators likely will continue to insist on reporting numerical metrics. Primary care practices have been described as complex adaptive systems. Traditional improvement processes applied linear mechanical systems, such isolated single-disease are inappropriate nonlinear, because differences processes, outcome goals, the validity summative scorecards. Our include patient-centered...

The Boltzmann equation is used to investigate the influence of umklapp scattering on galvano-magnetic properties a nearly-free-electron bcc metal with spherical Fermi surface. A phenomenological function describe scattering. If areas surface where occurs are very small and intense, transverse magnetoresistance found increase linearly magnetic field saturation value. linear variation can occur up values ${\ensuremath{\omega}}_{c}\ensuremath{\tau}$ as large 150, i.e., well into...

Fee-for-service payment is commonly blamed for problems in the US healthcare system, including current and projected shortage of primary care physicians. Britain's National Health Service (NHS) general practitioner (GP) workforce has been paid mostly by capitation since creation NHS, which leads many observers to conclude that will solve problems. To compile synthesize information about GP administration from publicly-avalailable sources. This was a compilation 30+ years articles I...

Objectives: We aimed to assess possible changes in medication safety over a mandatory pre-/post- COVID-19 clinic slowdown high-risk population of patients with diabetes seen at net clinic. Methods: Retrospective chart review all patient encounters 1 year before and after the slowdown. The study cohort were poorly controlled established pre-COVID-19 who prescribed 4+ chronic medications. Each note was abstracted for reports any medication-related problems. primary outcomes measures health...

The passage of the 2010 Patient Protection and Affordable Care Act (PPACA) in United States put issues health care reform costs back national spotlight. DeVoe colleagues previously estimated that cost a family insurance premium would equal median household income by year 2025. A slowdown spending tied to recent economic downturn PPACA occurred after this model was published. In updated model, we estimate threshold will be crossed 2033, under favorable assumptions may extend date only 2037....

A phenomenological theory is used to account for the observed variation of mobility electrons in high-density low-temperature helium gas. Thermodynamic relaxation times are introduced characterize lifetime localized and delocalized states. By allowing these be a function density, we able quantitatively density dependence electronic anomalous electric field electron drift velocity, as by Levine Sanders. The computed critical where free energy configuration equal state, 9.5...

Abstract Background Residency programs desire assessment tools for teaching and measuring resident attainment of the Accreditation Council Graduate Medical Education competencies, including interpersonal communication skills. Objective We sought to evaluate use emotional intelligence (EI) training in assessing enhancing Methods used a quasi-experimental design, with an intervention control group composed 1 class each family medicine residents. The was EI coaching. Emotional Social Competence...

<h3>Background:</h3> The purpose of this study was to describe how many rural family physicians (FPs) and other types providers currently provide maternity care services, the requirements obtain privileges. <h3>Methods:</h3> Chief executive officers hospitals were purposively sampled in 15 geographically diverse states with significant areas 2013 2014. Questions asked about provision who perform them, qualifications required Analysis used descriptive statistics, comparisons between states,...

Accruing evidence supports the hypothesis that psychosocial factors are related to cardiovascular disease. However, a limited number of studies have investigated pathophysiologic pathways through which these associations occur. The purpose this study was assess whether experiences self-reported racial discrimination and reactions unfair treatment were associated with coronary artery calcification (CAC), an indicator subclinical heart disease (CHD). This cross-sectional recruited 571 subjects...

The influence of small-angle scattering between different sheets Fermi surface on the galvanomagnetic properties metals is calculated using an idealized surface. effects are included explicitly in solution Boltzmann equation. theoretical results applied to experimental measurements transverse magnetoresistance and Hall resistivity cadmium Cd-Zn alloys with magnetic field parallel [0001] direction. Excellent agreement obtained for observed as well magnetoresistance. theory experiment...

Primary care physicians are rarely mentioned in medical disaster plans. We describe how a group of mostly family and administrators the JPS Health Network (JPS) took primary responsibility for 3,700 evacuees Hurricane Katrina who came to Tarrant County, Texas. provided 1,664 (45%) during 2-week period. The most common needs were medications chronic illnesses treatment skin infections (primarily on feet). Emergency Department saw only 148 evacuees, whom arrived by their own transportation not...

<h3>Abstract</h3> Risky decisions involve choosing between options where the outcomes are uncertain. Cognitive tasks such as CANTAB Cambridge Gamble Task (CGT) have revealed that patients with depression make more conservative decisions, but mechanisms of choice evaluation underlying and how they lead to observed differences in depression, remain unknown. To test this, we used a computational modelling approach broad general-population sample (N = 753) who performed CGT completed...

<h3>Objective:</h3> The digital revolution is changing the manner in which patients communicate with their health care providers, yet many still lack access to communication technology. We conducted this study evaluate to, use of, and preferences for using technology among a predominantly low-income patient population. determined whether access, use, were associated type of insurance, sex, age, ethnicity. <h3>Methods:</h3> In 2011, medical student researchers administered questionnaires...

Previous work has shown that $210 billion may be spent annually on unnecessary medical services and identified patient hospital characteristics associated with low value care (LVC). However, little is known about the association between primary physician (PCP) LVC spending. The objective of this study was to assess association.We performed a retrospective analysis by using Medicare claims data identify American Medical Association Masterfile for PCP characteristics. We included PCPs adults...

What a zigzag path, how unlike straight line is man's progress in search of Truth.