143 research outputs found
Financial reporting quality and the quiet Life by Mihir N. Mehta.
No full textThesis (Ph. D.)--Massachusetts Institute of Technology, Sloan School of Management, 2010.Cataloged from PDF version of thesis.Includes bibliographical references (p. 61-64).Bertrand and Mullainathan (2003) find that managers shielded from the threat of takeovers exert less effort to maximize firm value, consistent with a 'quiet life' hypothesis. I study whether the governance role of financial reporting can mitigate adverse effects arising from managerial preferences for a quiet life. I hypothesize and find evidence that after changes in the mid 1990's to Delaware's takeover protection regime, Delaware firms with higher financial reporting quality (FRQ) have better operating performance and higher capital investment intensity. Furthermore, the above relation between FRQ and performance is stronger for firms operating in less competitive industries, and firms with staggered boards. Overall, the results suggest that financial reporting can help mitigate adverse effects associated with managerial preferences for a quiet life.Ph.D
Occlusion-amblyopia following high dose oral levodopa combined with part time patching
No full textPart time occlusion therapy is not reported to cause occlusion (reverse) amblyopia. However, when combined with high dose oral levodopa, an increase in the plasticity of the visual cortex can lead to occlusion amblyopia. In this case report, we describe a six year old child who developed occlusion amblyopia following part time patching combined with oral levodopa
Can the Bruckner test be used as a rapid screening test to detect significant refractive errors in children?
No full textPurpose: To assess the suitability of Brückner test as a screening test to detect significant refractive errors in children. Materials and Methods: A pediatric ophthalmologist prospectively observed the size and location of pupillary crescent on Brückner test as hyperopic, myopic or astigmatic. This was compared with the cycloplegic refraction. Detailed ophthalmic examination was done for all. Sensitivity, specificity, positive predictive value and negative predictive value of Brückner test were determined for the defined cutoff levels of ametropia. Results: Ninety-six subjects were examined. Mean age was 8.6 years (range 1 to 16 years). Brückner test could be completed for all; the time taken to complete this test was 10 seconds per subject. The ophthalmologist identified 131 eyes as ametropic, 61 as emmetropic. The Brückner test had sensitivity 91%, specificity 72.8%, positive predictive value 85.5% and negative predictive value 83.6%. Of 10 false negatives four had compound hypermetropic astigmatism and three had myopia. Conclusions: Brückner test can be used to rapidly screen the children for significant refractive errors. The potential benefits from such use may be maximized if programs use the test with lower crescent measurement cutoffs, a crescent measurement ruler and a distance fixation target
Feed back of the parents and / or relatives witnessing a squint surgery of their ward in the operation theater
No full textThe aim of the study was to know the response of the relatives attending the squint surgery of their ward. A trained secretary administered an eight item questionnaire by live / telephonic interview. Of the 44 attendees, two left the Operation Theater before completion of the surgery. Mean age of the patients was 7.2 years ± 7.8 and that of the attendees was 36.1 years ± 8.5. Forty patients had a surgery under general anesthesia and four under local anesthesia. Eleven (25%) attendees experienced an increase in anxiety. Thirty-six (82%) attendees reported increased transparency, 38 (86%) reported increased confidence, and 43 (98%) reported increased awareness. None found any disadvantage. Twenty-seven (61%) recommended this practice for all and 16 (36%) recommended the practice selectively. The internal validity of the questionnaire was fair (Cronbach′s Alpha = 0.6). It was concluded that the presence of relatives in the Operation Theater during the surgery could bring in more transparency, accountability, confidence, awareness, and trust
Clinical characteristics of spontaneous late-onset comitant acute nonaccommodative esotropia in children
No full textPurpose: To describe the clinical characteristics of spontaneous, late-onset comitant acute, nonaccommodative esotropia (ANAET) in children. Materials and Methods: Clinical characteristics of a cohort of patients under 16 years of age with ANAET were studied retrospectively. Results: Of 15 patients eight were females. Mean age was 7.15 years (range 2.5-13, SD 3.34). Mean age of the onset of deviation was 3.2 years (range 1.5-9, SD 2.26). Mean duration of strabismus was 36 months (range 3-132, SD 43). History of a precipitating event was present in five patients (33.3%). Mean cycloplegic refraction was 1.84 diopter sphere (range -5.75 to +7.25, SD 3.55). Mean esodeviation for near and distance fixation was 40 prism diopter (range 15-90, SD 23.9). None had near/distance disparity of more than 5 prism diopter. Amblyopia was present in 13 cases (87%). Strabismus surgery was performed for eight patients. Five patients had orthophoria and three were aligned within 8 prisms esodeviation. Conclusion: ANAET is more common than previously reported, has a variable time of onset and high incidence of amblyopia. Timely management would avert emergence of amblyopia and vertical incomitance thereby promising better binocular outcome
R code for replicating Bar graph in the article Air Pollution and Mortality in India: Investigating the Nexus of Ambient and Household Pollution across Life Stages
No full text<p>This R code replicates the Bar graph (Figure-3) in the article titled: </p>
<p><strong><span>Air Pollution and Mortality in India: Investigating the Nexus of Ambient and Household Pollution across Life Stages</span></strong></p>
<p><strong>Author: Mihir Adhikary</strong></p>
Unilateral situs inversus of optic disc associated with reduced binocularity and stereoacuity resembling monofixation syndrome
No full textSitus inversus of the optic disc is a rare, usually bilateral, congenital embryological abnormality associated with high myopia, optic disc coloboma or tilted optic disc. It is characterized by emergence of the retinal vessels in an anomalous direction with dysversion of the optic disc. In this report we present a 13-year-old boy diagnosed with isolated, unilateral situs inversus of the optic disc associated with reduced binocularity and stereoacuity resembling a monofixation syndrome. The clinicians should be aware of this association and assess the binocularity in patients with unilateral optic disc or macular anomalies. Conversely, patients with reduced binocularity and stereoacuity should be carefully evaluated for macular or optic nerve anomalies, if not associated with strabismus, anisometropia and eccentric fixation. Typical fundus picture, optical coherence tomography and multifocal electro retinogram of the patient would be instructive to a clinician
- …
