Organizational Form and Insurance Company Performance: Stocks versus Mutuals

One unusual feature of the U.S. property-casualty insurance industry is the coexistence of stock and mutual companies. This paper explores the performance of these forms in the industry through a dynamic assessment of how mutual and stock insurance companies respond to differences in their underwriting environment. Agency theories suggest that the stock company may be more 'opportunistic' and less obligated to their insureds than mutuals. This article assesses the responses by stock and mutual firms to changes in the underwriting environment from 1984 to 1991, using measures of individual firms' performance, by state and by line, in eight different lines of insurance. Stock companies are more likely than mutuals to reduce their business in unprofitable situations, and have higher losses than mutuals for a given amount of premiums.

Wind Tunnel Aerodynamic Characteristics of a Transport-type Airfoil in a Simulated Heavy Rain Environment

The effects of simulated heavy rain on the aerodynamic characteristics of an NACA 64-210 airfoil section equipped with leading-and trailing-edge high-lift devices were investigated in the Langley 14- by 22-Foot Subsonic Tunnel. The model had a chord of 2.5 ft, a span of 8 ft, and was mounted on the tunnel centerline between two large endplates. Aerodynamic measurements in and out of the simulated rain environment were obtained for dynamic pressures of 30 and 50 psf and an angle-of-attack range of 0 to 20 degrees for the cruise configuration. The rain intensity was varied to produce liquid water contents ranging from 16 to 46 gm/cu m. The results obtained for various rain intensity levels and tunnel speeds showed significant losses in maximum lift capability and increases in drag for a given lift as the liquid water content was increased. The results obtained on the landing configuration also indicate a progressive decrease in the angle of attack at which maximum lift occurred and an increase in the slope of the pitching-moment curve as the liquid water content was increased. The sensitivity of test results to the effects of the water surface tension was also investigated. A chemical was introduced into the rain environment that reduced the surface tension of water by a factor of 2. The reduction in the surface tension of water did not significantly alter the level of performance losses for the landing configuration

Gender, Millennials, and leisure constraints: Exploring golf’s participation decline

This paper addresses the dearth of research regarding why the golf industry, specifically in the United States, is stagnating and, in some cases, losing participants. We focus on why Millennials are not playing golf to the same extent as previous generations. This is a conceptual paper, drawing upon literature in sports, leisure, gender, and marketing to track the current trends in sports participation, leisure, and household production to determine the constraints that might limit golf participation. In this paper, we highlight gender as an important social structure and conceptual lens for understanding social changes, particularly among Millennials, which could also contribute to the reductions in golf participation. We offer practical solutions for the golf industry to grow, especially among the Millennial audience. We suggest, among other actions, that golf should improve its appeal to the entire family

Gender, Millennials, and leisure constraints: Exploring golf’s participation decline

This paper addresses the dearth of research regarding why the golf industry, specifically in the United States, is stagnating and, in some cases, losing participants. We focus on why Millennials are not playing golf to the same extent as previous generations. This is a conceptual paper, drawing upon literature in sports, leisure, gender, and marketing to track the current trends in sports participation, leisure, and household production to determine the constraints that might limit golf participation. In this paper, we highlight gender as an important social structure and conceptual lens for understanding social changes, particularly among Millennials, which could also contribute to the reductions in golf participation. We offer practical solutions for the golf industry to grow, especially among the Millennial audience. We suggest, among other actions, that golf should improve its appeal to the entire family

Study of several factors affecting crew escape trajectories from the Space Shuttle Orbiter at low-subsonic speeds

Factors affecting the bailout characteristics from the space shuttle orbiter at low-subsonic speeds were investigated. In the 12-foot low-speed tunnel and the 4 by 7-meter tunnel with 0.03-scale models. The effect of crew-model exit velocity, body position, and body weight were studied with egress from the main side hatch with the orbiter upright and from the upper cabin hatch with the orbiter inverted. Crew model drag and flow field measurements around the orbiter were estimated. The high-angle-of-attack trim characteristics of the orbiter was determined by force tests in an attempt to improve bailout conditions. A computer simulation was made to evaluate the maneuver necessary to attain the high-angle-of-attack trim

The Immature Stages and Natural History of Veladyris pardalis (Salvin, 1869) in Eastern Ecuador (Lepidoptera: Nymphalidae: Lthomiinae)

We describe the immature stages and oviposition behavior of Veladyris pardalis (Salvin, 1869) from northeastern Ecuador. An unidentified species of Solanum (Solanaceae) is the larval food plant. Eggs are laid singly on leaves, stems or epiphytes growing on the host. Veladyris pardalis has four larval stadia, and takes 64–70 days to mature from oviposition to adult

New Outlook on the Possible Existence of Superheavy Elements in Nature

A consistent interpretation is given to some previously unexplained phenomena seen in nature in terms of the recently discovered long-lived high spin super- and hyper-deformed isomeric states. The Po halos seen in mica are interpreted as due to the existence of such isomeric states in corresponding Po or nearby nuclei which eventually decay by gamma- or beta-decay to the ground states of 210Po, 214Po and 218Po nuclei. The low-energy 4.5 MeV alpha-particle group observed in several minerals is interpreted as due to a very enhanced alpha transition from the third minimum of the potential-energy surface in a superheavy nucleus with atomic number Z=108 (Hs) and atomic mass number around 271 to the corresponding minimum in the daughter.Comment: 8 pages, 8 figures, 5 tables. Paper presented at VII Int. School-Seminar on Heavy Ion Physics, May 27 - June 1, 2002, Dubna, Russi

Evidence for a long-lived superheavy nucleus with atomic mass number A=292 and atomic number Z=~122 in natural Th

Evidence for the existence of a superheavy nucleus with atomic mass number A=292 and abundance (1-10)x10^(-12) relative to 232Th has been found in a study of natural Th using inductively coupled plasma-sector field mass spectrometry. The measured mass matches the predictions [1,2] for the mass of an isotope with atomic number Z=122 or a nearby element. Its estimated half-life of t1/2 >= 10^8 y suggests that a long-lived isomeric state exists in this isotope. The possibility that it might belong to a new class of long-lived high spin super- and hyperdeformed isomeric states is discussed.[3-6]Comment: 14 pages, 5 figure

Prevalence and Level of Enterohemorrhagic \u3ci\u3eEscherichia coli\u3c/i\u3e in Culled Dairy Cows at Harvest

The primary objective of this study was to determine the prevalence and level of enterohemorrhagic Escherichia coli (EHEC) O26, O45, O103, O111, O121, and O145 (collectively EHEC-6) plus EHEC O157 in fecal, hide, and preintervention carcass surface samples from culled dairy cows. Matched samples (n=300) were collected from 100 cows at harvest and tested by a culture-based method and two molecular methods: NeoSEEK STEC (NS) and Atlas STEC EG2 Combo. Both the culture and NS methods can be used to discriminate among the seven EHEC types (EHEC-7), from which the cumulative prevalence was inferred, whereas the Atlas method can discriminate only between EHEC O157 and non-O157 EHEC, without discrimination of the serogroup. The EHEC-7 prevalence in feces, hides, and carcass surfaces was 6.5, 15.6, and 1.0%, respectively, with the culture method and 25.9, 64.9, and 7.0%, respectively, with the NS method. With the Atlas method, the prevalence of non-O157 EHEC was 29.1, 38.3, and 28.0% and that of EHEC O157 was 29.1, 57.0, and 3.0% for feces, hides, and carcasses, respectively. Only two samples (a hide sample and a fecal sample) originating from different cows contained quantifiable EHEC. In both samples, the isolates were identified as EHEC O157, with 4.7 CFU/1,000 cm2 in the hide sample and 3.9 log CFU/g in the fecal sample. Moderate agreement was found between culture and NS results for detection of EHEC O26 (k=0.58,

How and why do students’ career interests change during higher education?

Given the increased emphasis on employability in higher education, there is an urgent need to better understand how higher education influences students’ career interests. Much of the vocational psychological interest literature has assumed that career interest is stable from adolescence through adulthood. Newer conceptions of interest, drawn from developmental-educational perspectives, instead emphasise the mutability of interest and the ways in which the environment can support its development. This study makes a novel contribution by extending a developmental-educational theory of interest to illuminate how students’ career interests develop during university and what students perceive influences those career interests. Upon completing their bachelor’s degrees, we surveyed the 2019 graduating class (n=663) at a mid-ranked UK university offering a blend of applied and pure programmes. Graduates indicated whether their career interests had changed during university, described their career interests ‘when they started university’ and what they were ‘now’, and explained what had affected their career interest during university. Most (61%) reported that their career interests had changed. Consistent with interest theory, the most common types of change were clarification within a single Standard Industrial Classification (30%), shifts to a different SIC (19%), becoming more decided (12%), or rejecting a plan, leaving them unsure (5%). The most common influences on career interests were the curriculum (46%), placements (14%), work experiences (7%), and co-curricular activities (6%). In a follow up study, we interviewed fifteen students about their interest development during higher education. We used the interview results to illustrate and illuminate nuances in the way students experienced those influences. We suggest that the results of this study raise concerns about relying solely on career decidedness measures such as Careers Registration. We also conclude that career practitioners and academics need to consider the central role of disciplinary curricula in career learning, as well as continue to emphasise opportunities for work experiences in and outside the curriculum