Introduction: Aging may increase physical or functional limitations, and India has a rapidly aging population. This study aimed to assess the prevalence and correlates of difficulties with Activities of Daily Living (ADL) and Instrumental Activities of Daily Living (IADL) among older adults in India. Methods: The cross-sectional sample consisted of 31,477 individuals (≥ 60 years) from the Long...

This paper examines implications of the collective cognitive blind spot of national security leaders with regard to confl ict and warfare in and through cyberspace. It argues that the view of cyberspace as a contested domain within a global commons is not suffi cient to address the full range of confl ict therein. It posits that deliberate examination of the ontology and evolution of cyberspace...

Accurately mapping the course and vegetation along a river is challenging, since overhanging trees block GPS at ground level and occlude the shore line when viewed from higher altitudes. We present a multimodal perception system for the active exploration and mapping of a river from a small rotorcraft. We describe three key components that use computer vision, laser scanning, inertial sensing a...

The structure-from-motion problem has been extensively studied in the field of computer vision. Yet, the bulk of the existing work assumes that the scene contains only a single moving object. The more realistic case where an unknown number of objects move in the scene has received little attention, especially for its theoretical treatment. In this paper we present a new method for separating an...

Abstract. Although most works in computer vision use perspective or other central cameras, the interest in non-central camera models has increased lately, especially with respect to omnidirectional vision. Calibration and structure-from-motion algorithms exist for both, central and non-central cameras. An intermediate class of cameras, although encountered rather frequently, has received less a...

We describe algorithms for multi{image structure from motion from tracked point features. The algorithms are essentially linear, work for any motion of moderate size, and give accuracies similar to those of a maximum{likelihood estimate. They are as fast as the Sturm/Triggs approach and give better results. We show experimentally that the Sturm/Triggs approach often fails for linear camera moti...

Results from the 1995 season of site-testing experiments at the South Pole are presented, in which the seeing was measured using balloon-borne microthermal probes. Our analysis shows a marked division of the atmosphere into two characteristic regions: (i) a highly turbulent boundary layer (0–220 m) associated with a strong temperature inversion and wind shear, and (ii) a very stable free atmosp...

PURPOSE To examine the suprathreshold scaling of pneumatic stimuli, and the ratings of discomfort and intensity under clear and defocused visual conditions. METHODS Twenty-one participants rated sensory intensity and discomfort of a series of mechanical stimuli from a pneumatic esthesiometer, using a 0 to 100 numerical scale under clear and defocused visual conditions. Esthesiometry was perfo...

A child suffering from traumatic cataract and corneal astigmatism of 2.14 D had a phacoemulsification operation and implantation of a ReSTOR Toric intraocular lens (IOL) to correct the astigmatism. The primary outcome measurements were the uncorrected distance visual acuity (UDVA), uncorrected near vision at 40 cm, intraocular pressure, spherical equivalent refraction, residual astigmatism, cor...

Loss of vision due to eye metastasis is generally uncommon, representing an ophthalmological diagnostic and therapeutic challenge. We here report a case of a smoker patient finally diagnosed with lung cancer, whose initial symptom was visual loss due to choroidal metastasis. Given that the majority of subjects presenting with uveal metastasis have already developed other distant metastases as w...