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Greater Threat (greater + threat)
Selected AbstractsPhysicians' Preparedness for Bioterrorism and Other Public Health PrioritiesACADEMIC EMERGENCY MEDICINE, Issue 11 2006G. Caleb Alexander MD Objectives Potential bioterrorism challenges policy makers to balance competing public health priorities. Earlier surveys showed low physician bioterrorism preparedness but did not assess physicians' general public health preparedness, compare the preparedness of emergency and primary care physicians, or assess temporal trends. Methods This was a national, cross-sectional, random-sample survey conducted in 2003. Results Overall, 744 of 1,200 eligible physicians responded (response rate, 62%). Of these, 58% of emergency physician respondents and 48% of primary care physician respondents reported having learned a lot about responding to bioterror since September 11, 2001 (p < 0.01). However, only 43% of emergency physicians and 21% of primary care physicians agreed they are generally "well prepared to play a role in responding to a bioterror attack" (p < 0.001). Beliefs about balancing public health priorities were similar among emergency and primary care respondents. Seventy-eight percent of respondents believed that local health care systems need to be prepared for bioterrorism, and 92% believed that local health care systems need to be prepared for natural epidemics. By contrast, only 23% and 46% of respondents reported that their local health care systems are well prepared for bioterrorism and natural epidemics, respectively. Meanwhile, 77% agreed that "influenza is a greater threat to public health than bioterrorism," and 21% reported that bioterrorism preparedness efforts are diverting resources from more important public health problems. Conclusions In 2003, most emergency and primary care physicians reported that they and their local health care systems were not yet well prepared to respond to a bioterror attack, and many believed that more resources should go toward preparing for natural epidemics. These findings highlight the importance of expanding bioterrorism preparedness efforts to improve the public health system more broadly. [source] Vocal Discrimination in Mate Guarding Male Australian Sea Lions: Familiarity Breeds ContemptETHOLOGY, Issue 8 2010Marie R. G. Attard The vocal characteristics of a species can be immensely diverse, and can significantly impact animal social interactions. The social structure of a species may vary with geographical variation in call characteristics. The ability of pinnipeds (true seals, fur seals, sea lions and walrus) to distinguish between conspecifics may assist male reproductive strategies, particularly mate acquisition. We assessed the ability of mate guarding Australian sea lion (Neophoca cinerea) males to discriminate local from foreign males' barks recorded from a geographically distant breeding colony. Bark characteristics were significantly different between colonies, with barks produced by males from the Lewis Island breeding colony higher pitched and longer in both duration and interval duration than barks produced by males on Kangaroo Island. Mate guarding males displayed inter-colony discrimination of barks, with a significantly stronger response to barks from local males than to those of males from a colony approx. 180 km away. Local males' barks were apparently considered a greater threat than barks from unfamiliar males. We propose that discrimination of acoustic characteristics may facilitate reproductive isolation in this species that may lead to an ethological,acoustic barrier between breeding colonies, and subsequent genetic isolation. [source] Small fish, big fish, red fish, blue fish: size-biased extinction risk of the world's freshwater and marine fishesGLOBAL ECOLOGY, Issue 6 2007Julian D. Olden ABSTRACT Aim, In light of the current biodiversity crisis, there is a need to identify and protect species at greatest risk of extinction. Ecological theory and global-scale analyses of bird and mammal faunas suggest that small-bodied species are less vulnerable to extinction, yet this hypothesis remains untested for the largest group of vertebrates, fish. Here, we compare body-size distributions of freshwater and marine fishes under different levels of global extinction risk (i.e. listed as vulnerable, endangered or critically endangered according to the IUCN Red List of Threatened Species) from different major sources of threat (habitat loss/degradation, human harvesting, invasive species and pollution). Location, Global, freshwater and marine. Methods, We collated maximum body length data for 22,800 freshwater and marine fishes and compared body-size frequency distributions after controlling for phylogeny. Results, We found that large-bodied marine fishes are under greater threat of global extinction, whereas both small- and large-bodied freshwater species are more likely to be at risk. Our results support the notion that commercial fishing activities disproportionately threaten large-bodied marine and freshwater species, whereas habitat degradation and loss threaten smaller-bodied marine fishes. Main conclusions, Our study provides compelling evidence that global fish extinction risk does not universally scale with body size. Given the central role of body size for trophic position and the functioning of food webs, human activities may have strikingly different effects on community organization and food web structure in freshwater and marine systems. [source] Inequality in the welfare state?INTERNATIONAL JOURNAL OF SOCIAL WELFARE, Issue 3 2001Local variation in care of the elderly, the case of Sweden This article uses Sweden as an example to describe and analyse municipal variation in services and care for elderly people. Responsibility for these services lies with the municipalities. National statistical data on municipalities are analysed to map out the variations in old-age care; to study compensating factors in the care system; and to explore the connection with municipal structural and political conditions. The overall finding of the bivariate analyses was that most relations with structure and policy were weak or non-existent. The final multivariate model explained only 15% of the variance. The large differences between municipalities makes it more appropriate to talk about a multitude of ,welfare municipalities' rather than one single welfare state. The article concludes that this municipal disparity constitutes a greater threat to the principle of equality in care of the elderly than gender and socio-economic differences. [source] Comparison of the hydrolytic stability of S -(N,N -diethylaminoethyl) isobutyl methylphosphonothiolate with VX in dilute solutionJOURNAL OF APPLIED TOXICOLOGY, Issue S1 2001M. D. Crenshaw Abstract The stability of S -(N,N -diethylaminoethyl) isobutyl methylphosphonothiolate,a V-type nerve agent developed by the former Soviet Union,in the environment is an important parameter in threat assessment analysis and for the determination of use, production, testing and storage of this chemical warfare agent. S -(N,N -Diethylaminoethyl) isobutyl methylphosphonothiolate is a structural isomer of the nerve agent VX developed by the USA and the UK and will be referred to as VXA (VX analog) in this presentation. Because VXA and VX differ structurally, even though they do have the same molecular formula, it is expected that their physical and chemical properties would be different. This preliminary investigation was undertaken to determine the relative hydrolysis rate of VXA compared with VX. The hydrolysis of each compound at approximately 1 mg ml,1 in unbuffered water at pH 7 was determined side-by-side. The half-lives for VXA and VX were determined to be 12.4 days and 4.78 days, respectively. Agent VXA hydrolyzed 2.6 times more slowly than VX, and each agent followed second-order hydrolysis kinetics. These results imply that VXA is more persistent in the environment and therefore poses a greater threat. These results also imply that VXA is more likely to be detected, if present, during an inspection in support of the Chemical Weapons Convention. Copyright © 2001 John Wiley & Sons, Ltd. [source] Adolescent Triangulation Into Parental Conflicts: Longitudinal Implications for Appraisals and Adolescent-Parent RelationsJOURNAL OF MARRIAGE AND FAMILY, Issue 2 2010Gregory M. Fosco Although triangulation into parental conflict is a risk factor for child and adolescent maladjustment, little is known about how triangulation affects adolescents' functioning or the factors that lead children to be drawn into parental disagreements. This prospective study examined the relations between triangulation, appraisals of conflict, and parent-child relations in a sample of 171 adolescents, ages 14 to 19 years, at 2 time points. Cross-lagged path analyses revealed that youths who experienced greater threat in response to conflict reported increases in triangulation over time, and triangulation was associated with increased self-blame and diminished parent-adolescent relations. This study highlights links between intrapersonal, dyadic, and triadic processes and suggests a mechanism by which interparental discord spills over into parent-adolescent relations. [source] Reciprocal hybrid formation of Spartina in San Francisco BayMOLECULAR ECOLOGY, Issue 6 2000C. K. Anttila Abstract Diversity in the tRNALEU1 intron of the chloroplast genome of Spartina was used to study hybridization of native California cordgrass, Spartina foliosa, with S. alterniflora, introduced to San Francisco Bay , 25 years ago. We sequenced 544 bases of the tRNALEU1 intron and found three polymorphic sites, a pyrimidine transition at site 126 and transversions at sites 382 and 430. Spartina from outside of San Francisco Bay, where hybridization between these species is impossible, gave cpDNA genotypes of the parental species. S. foliosa had a single chloroplast haplotype, CCT, and this was unique to California cordgrass. S. alterniflora from the native range along the Atlantic coast of North America had three chloroplast haplotypes, CAT, TAA, and TAT. Hybrids were discriminated by random amplified polymorphic DNA (RAPD) phenotypes developed in a previous study. We found one hybrid that contained a cpDNA haplotype unknown in either parental species (TCT). The most significant finding was that hybridization proceeds in both directions, assuming maternal inheritance of cpDNA; 26 of the 36 hybrid Spartina plants from San Francisco Bay contained the S. foliosa haplotype, nine contained haplotypes of the invading S. alterniflora, and one had the cpDNA of unknown origin. Furthermore, cpDNA of both parental species was distributed throughout the broad range of RAPD phenotypes, suggesting ongoing contributions to the hybrid swarm from both. The preponderance of S. foliosa cpDNA has entered the hybrid swarm indirectly, we propose, from F1s that backcross to S. foliosa. Flowering of the native precedes by several weeks that of the invading species, with little overlap between the two. Thus, F1 hybrids would be rare and sired by the last S. foliosa pollen upon the first S. alterniflora stigmas. The native species produces little pollen and this has low viability. An intermediate flowering time of hybrids as well as pollen that is more vigourous and abundant than that of the native species would predispose F1s to high fitness in a vast sea of native ovules. Thus, spread of hybrids to other S. foliosa marshes could be an even greater threat to the native species than introductions of alien S. alterniflora. [source] Former partners and new rivals as threats to a relationship: Infidelity type, gender, and commitment as factors related to distress and forgivenessPERSONAL RELATIONSHIPS, Issue 3 2004Arnie Cann The overall aim of this study was to examine differences in responses to relationship infidelity when the infidelity involves a former romantic partner as opposed to a new rival. Participants indicated, for either sexual or emotional infidelity, whether they would be more upset if their partner were involved with a former partner or a new person, and whether they would be forgiving. Men and women saw the former partner as a greater threat when the infidelity was sexual. However, for emotional infidelity, only women selected the former partner more frequently. Ratings of the degree of distress and likelihood of forgiveness followed a similar pattern. For women, measures of relationship commitment were related to distress and forgiveness. For men, these measures were related to forgiveness only. The gender differences in distress may be related to differences between men and women in beliefs about the importance of commitment. [source] Type 2 diabetes mellitus and obesity in sub-Saharan AfricaDIABETES/METABOLISM: RESEARCH AND REVIEWS, Issue 6 2010Vivian C. Tuei Abstract While communicable diseases such as human immunodeficiency virus/acquired immune deficiency syndrome, malaria, and tuberculosis have continued to pose greater threats to the public health system in sub-Saharan Africa (SSA), it is now apparent that non-communicable diseases such as diabetes mellitus are undoubtedly adding to the multiple burdens the peoples in this region suffer. Type 2 diabetes mellitus (T2DM) is the most common form of diabetes (90,95%), exhibiting an alarming prevalence among peoples of this region. Its main risk factors include obesity, rapid urbanization, physical inactivity, ageing, nutrition transitions, and socioeconomic changes. Patients in sub-Saharan Africa also show manifestations of ,-cell dysfunction and insulin resistance. However, because of strained economic resources and a poor health care system, most of the patients are diagnosed only after they have overt symptoms and complications. Microvascular complications are the most prevalent, but metabolic disorders and acute infections cause significant mortality. The high cost of treatment of T2DM and its comorbidities, the increasing prevalence of its risk factors, and the gaps in health care system necessitate that solutions be planned and implemented urgently. Aggressive actions and positive responses from well-informed governments appear to be needed for the conducive interplay of all forces required to curb the threat of T2DM in sub-Saharan Africa. Despite the varied ethnic and transitional factors and the limited population data on T2DM in sub-Saharan Africa, this review provides an extensive discussion of the literature on the epidemiology, risk factors, pathogenesis, complications, treatment, and care challenges of T2DM in this region. Copyright © 2010 John Wiley & Sons, Ltd. [source] Better land husbandry in Honduras: towards the new paradigm in conserving soil, water and productivityLAND DEGRADATION AND DEVELOPMENT, Issue 3 2002J. Hellin Abstract Land shortages are forcing more smallholder farmers to cultivate tropical steeplands. Resulting accelerated soil erosion is being countered by the promotion of soil conservation (SC) technologies, such as cross-slope barriers, which aim to reduce soil loss and preserve land productivity. However, farmer adoption rates tend to be low. This is often attributed to the farmers' conservatism or lack of education. Research in Honduras's steeplands demonstrates that farmers value SC, provided that it promotes agricultural production. Field research from 1995,98, involving farmed test plots on slopes greater than 35 per cent (19 degrees), demonstrates that at least one typical SC technology,live barriers of Vetiveria zizanioides (vetiver grass),has little or no impact on maize yield. This means that farmers see little benefit from their investment in the SC method. They find that erratic rainfall, pests and diseases and a lack of economic resources are far greater threats to their livelihoods than soil erosion. Consequently, SC has a low priority. Keeping soil in place avoids major off-farm disbenefits. However, the SC technique tested here made no discernible difference to slope foot sediment yields during the life of this study. In sum, a new approach is needed. Promoting ,Better Land Husbandry' strategies, which seek to combine farmers' concerns about productivity with conservationists' concerns about reducing soil erosion,often via cover-management,seem to be the best way forward. Copyright © 2002 John Wiley & Sons, Ltd. [source] Risk perception and risky choice: Situational, informational and dispositional effectsASIAN JOURNAL OF SOCIAL PSYCHOLOGY, Issue 2 2003Xiao-Fei Xie We investigated how situational (gain,loss), informational (opportunity,threat framing) and dispositional (achievement motive and avoidance motive) variables affected opportunity,threat perception and risky choice in managerial decision-making contexts. In Study 1, the risk preference of the participants showed a reflection effect due to situational differences (gain or loss) and a partial framing effect caused by presenting the same choice information in terms of either opportunities or threats. However, both effects were in the opposite direction of predictions from prospect theory. Gains and positive framing enhanced risk-seeking preference whereas losses and negative framing augmented risk-averse preference. Risk-seeking choices were mediated by opportunity perception whereas risk-averse choices were mediated by threat perception. In Study 2, the participants high in achievement motive perceived greater opportunities in a negative situation, and the participants high in avoidance motive perceived greater threats in a positive situation, suggesting that ambition (achievement motive) operates more significantly in the face of adversities whereas cautiousness (avoidance motive) functions more significantly in prosperity. [source] | |||||||||||||||||||