An increasing number of studies in a wide range of natural systems have investigated how pulses of resource availability influence ecological processes at individual, population, and community levels. Taken together, these studies suggest that some common processes may underlie pulsed resource dynamics in a wide diversity of systems. Developing a common framework of terms and concepts for the s...

We present previously undescribed spatial group patterns that emerge in a one-dimensional hyperbolic model for animal group formation and movement. The patterns result from the assumption that the interactions governing movement depend not only on distance between conspecifics, but also on how individuals receive information about their neighbors and the amount of information received. Some of ...

background: high prevalence of risky behaviors in alcohol dependents have been shown in several studies, but correlation between alcohol abuse and risky behaviors and relapse in patients with opiate dependence has been less investigated. this study aimed to determine the effect of alcohol abuse in rate of risk-taking behaviors in opiate dependents patients treated on maintenance program in nort...

Religiosity and participation in religious activities have been linked with decreased risky behavior. In the current research, we hypothesized that exposure to the concept of God can actually increase people's willingness to engage in certain types of risks. Across seven studies, reminders of God increased risk taking in nonmoral domains. This effect was mediated by the perceived danger of a ri...

Experimental observations of rare giant pulses or rogue waves were done in the output intensity of an optically injected semiconductor laser. The long-tailed probability distribution function of the pulse amplitude displays clear non-Gaussian features that confirm the rogue wave character of the intensity pulsations. Simulations of a simple rate equation model show good qualitative agreement wi...

AIM To appraise history and symptom taking for contact lens consultations, to determine current practice and to make recommendations for best practice. METHOD The peer reviewed academic literature was reviewed and the results informed a survey completed by 256 eye care practitioners (ECPs) on their current practice and influences. RESULTS The last eye-test date, last contact lens aftercare ...

Headache is a common complaint that makes up for approximately 25% of any neurologists outpatient practice. Yet, it is often underdiagnosed and undertreated. Ninety percent of headaches seen in practice are due to a primary headache disorder where there are no confirmatory tests, and neuroimaging studies, if done, are normal. In this situation, a good headache history allows the physician to re...

AIMS We aimed to determine the effectiveness of individual feedback and group feedback in improving recording, assessment, and management of risky alcohol use and of tobacco smoking by Junior Medical Officers (JMOs). METHOD Medical records of patients admitted by JMOs were examined for recording of alcohol use, alcohol withdrawal, intervention for alcohol, a consultation with the Drug and Alc...

INTRODUCTION Early comprehensive geriatric assessment (CGA) with good history-taking is essential in assessing the older adult. CASE PRESENTATION Our patient, a 75-year-old Caucasian woman, was originally admitted to hospital for investigation of iron deficiency anemia. During admission, she developed pneumonia and new intermittent atrial fibrillation in association with a right-sided weaknes...

History taking and clinical examination are the most important steps in the diagnosis and hence overall patient management in medicine, surgery and dentistry. The purpose of this study was to determine the history taking and clinical examination practices of dentists. Self-administered questionnaires were distributed among two hundred randomly selected dentists of Rawalpindi and Islamabad. The ...