The association of multiple risk factors with fruit and vegetable intake among a nationwide sample of college students

Few college students meet fruit and vegetable intake recommended requirements, and most receive no information from their institutions about this issue. The avoidable disease burden among students is large, the necessary information infrastructure exists, and Healthy People 2010 objectives indicate efforts should be taken to increase intake. OBJECTIVE: The authors examined the association of high-risk behaviors and fruit and vegetable intake to inform design of multiple risk factor interventions. PARTICIPANTS AND METHODS: The authors obtained data from a sample of 40,209 18- to 25-year-old college students who completed the American College Health Association-National College Health Assessment during the spring 2002 and 2003 semesters. RESULTS: Predictors of high fruit and vegetable intake for men and women included better: seatbelt and helmet use, physical activity, perceived health, sleep, self-care behaviors, and grades. Other notable predictors of high intake were reduced likelihood of cigarette smoking, alcohol use, drinking and driving, and feeling hopeless in both sexes; reduced likelihood of drinking and driving among men; and a greater likelihood of anorexia among women. CONCLUSIONS: The authors discuss implications of these findings.     

The self-prescribed use of aromatherapy oils by pregnant women

BackgroundWhile some studies have reported effectiveness of aromatherapy oils use during labour there is no reported evidence of efficacy or risks of aromatherapy oils use for pregnancy-related symptoms or conditions. A number of aromatherapy oils are unsafe for use by pregnant women yet there is currently no research examining the prevalence and characteristics of women who use aromatherapy oils during pregnancy.AimTo conduct an empirical study of the prevalence and characteristics of women who use aromatherapy oils during pregnancy.MethodsThe research was conducted as part of the Australian Longitudinal Study on Women's Health (ALSWH), focusing on the nationally representative sample of Australian women aged 31–36 years. Data were collected via a cross-sectional questionnaire (n = 8200) conducted in 2009.ResultsSelf-prescribed aromatherapy oils were used by 15.2% of pregnant women. Pregnant women were 1.57 (95% CI: 1.01, 2.43) times more likely to self-prescribe use of aromatherapy oils if they have allergies or hayfever, and 2.26 (95% CI: 1.34, 3.79) times more likely to self-prescribe use of aromatherapy oils if they have a urinary tract infection (UTI).ConclusionOur study highlights a considerable use of aromatherapy oils by pregnant women. There is a clear need for greater communication between practitioners and patients regarding the use of aromatherapy oils during pregnancy, as well a need for health care practitioners to be mindful that pregnant women in their care may be using aromatherapy oils, some of which may be unsafe.     

Can Latin America carry its international debt? A prospective analysis using the Wharton Latin American debt simulation model

The international debt of the LDCs has become a critical concern, perhaps currently the most critical one, from the perspective of debtor countries and creditors alike. Through the efforts of the IMF, the BIS, the central banks, and the large commercial banks, a crash may have averted for the time being, but the heavy burden of the debt remains, particularly in Latin America, where it is increasingly concentrated. Draconian remedial measures now threaten social and economic development throughout the continent.This article evaluates the perspective for Latin American debts and payments using a debt simulation model. Debt restructuring with the usual “IMF conditions” will impose serious economic shocks in Latin America. But even so, debt service ratios will remain high except under optimistic assumptions about growth in the industrial countries and about commodity prices. Only in case of a solid economic recovery in the United States, Europe and Japan can one be sanguine about Latin America's ability to work its way out from under the debt burden.     

Bayesians Should Not Resample a Prior Sample to Learn about the Posterior

It is argued in a Bayesian context in which a set of parameter values is simulated from a prior distribution, that the sampling importance resampling algorithm should not be used to resample these values so as to obtain an approximate sample from the posterior. Rather, the whole set of prior values, along with their appropriate weights, can be more gainfully employed.     

An empirical study of quality management practices in the petroleum industry

The purpose of this paper is to empirically study quality management practices in the petroleum industry in Iran. A reliable and valid survey instrument has been used for data gathering from managers in the petroleum industry in Iran. The instrument has been developed based on the criteria of the Malcolm Baldrige National Quality Award (MBNQA), which consists of 13 dimensions of quality management. Correlation analysis has been used to test for a relationship between the quality management constructs and quality results (internal quality results and/or external quality results). Most of the linkages within the Baldrige criteria were supported, which indicates the universal applicability of the Baldrige Award criteria. The result of the correlation analysis indicates that top management support is the major driver for quality management implementation which is significantly correlated with most of the quality management constructs. Furthermore, the results indicated that employee training and employee involvement are significantly correlated with internal (operational) quality results. Customer orientation and supplier quality are not significantly correlated with external quality results (business performance).     

Pandemic refuges: Lessons from 2 years of COVID-19

This paper relates evidence from the COVID-19 pandemic to the concept of pandemic refuges, as developed in literature on global catastrophic risk. In this literature, a refuge is a place or facility designed to keep a portion of the population alive during extreme global catastrophes. COVID-19 is not the most extreme pandemic scenario, but it is nonetheless a very severe global event, and it therefore provides an important source of evidence. Through the first 2 years of the COVID-19 pandemic, several political jurisdictions have achieved low spread of COVID-19 via isolation from the rest of the world and can therefore classify as pandemic refuges. Their suppression and elimination of COVID-19 demonstrates the viability of pandemic refuges as a risk management measure. Whereas prior research emphasizes island nations as pandemic refuges, this paper uses case studies of China and Western Australia to show that other types of jurisdictions can also successfully function as pandemic refuges. The paper also refines the concept of pandemic refuges and discusses implications for future pandemics.     

信任令团队长盛不衰

如果缺乏信任,就算你拥有世界上的一切程序与流程, 你的虚拟团队或远程业务也会一无所获由于受全球化及业务外包的共同影响,更多的经理人面临远距离领导员工的难题。组建虚拟团队已成为惯常的组织方式,这种趋势如潮汹涌,令许多经理人感到有点措手不及。正如他们所发现的那样。对员工实施虚拟化管理不同于传统的面对面管理。     

Bayesian Modeling of MPSS Data: Gene Expression Analysis of Bovine Salmonella Infection

Massively Parallel Signature Sequencing (MPSS) is a high-throughput counting-based technology available for gene expression profiling. It produces output that is similar to Serial Analysis of Gene Expression (SAGE) and is ideal for building complex relational databases for gene expression. Our goal is to compare the in vivo global gene expression profiles of tissues infected with different strains of Salmonella obtained using the MPSS technology. In this article, we develop an exact ANOVA type model for this count data using a zero-inflated Poisson (ZIP) distribution, different from existing methods that assume continuous densities. We adopt two Bayesian hierarchical models-one parametric and the other semiparametric with a Dirichlet process prior that has the ability to "borrow strength" across related signatures, where a signature is a specific arrangement of the nucleotides, usually 16-21 base-pairs long. We utilize the discreteness of Dirichlet process prior to cluster signatures that exhibit similar differential expression profiles. Tests for differential expression are carried out using non-parametric approaches, while controlling the false discovery rate. We identify several differentially expressed genes that have important biological significance and conclude with a summary of the biological discoveries.     

Economic Models for Single Sample Acceptance Sampling Plans,No Inspection,and 100 Percent Inspection

Once a process is stabilized using control charts, it is necessary to determine whether this process is capable of producing die desired quality, as determined by the specifications, without the use of some additional inspection procedure such as 100 percent inspection or acceptance sampling. One common method of making this determination is the use of process capability ratios. However, this approach may lead to erroneous decisions due to the omission of economic information. This paper attempts to remedy this situation by developing economic models to examine the profitability of different inspection policies. These models employ the quadratic loss function to represent the economic cost of quality from external failures, which is commonly omitted or overlooked. Moreover, assuming a normal distribution for the quality characteristic allows the use of simplified formulas that are provided. Thus the calculations can be made using standard normal tables and a calculator. Additionally, these economic models may be used to determine if additional inspection procedures should be reinstated if the quality of the process was to decline, to make capital budgeting decisions involving new equipment that produces parts of a higher quality, and to determine the preferred 100 percent inspection plan or acceptance sampling plan.     

Virtual Teams versus Face-to-Face Teams: An Exploratory Study of a Web-based Conference System*

Many organizations are forming “virtual teams” of geographically distributed knowledge workers to collaborate on a variety of workplace tasks. But how effective are these virtual teams compared to traditional face-to-face groups? Do they create similar teamwork and is information exchanged as effectively? An exploratory study of a World Wide Web-based asynchronous computer conference system known as Meeting Web™ is presented and discussed. It was found that teams using this computer-mediated communication system (CMCS) could not outperform traditional (face-to-face) teams under otherwise comparable circumstances. Further, relational links among team members were found to be a significant contributor to the effectiveness of information exchange. Though virtual and face-to-face teams exhibit similar levels of communication effectiveness, face-to-face team members report higher levels of satisfaction. Therefore, the paper presents steps that can be taken to improve the interaction experience of virtual teams. Finally, guidelines for creating and managing virtual teams are suggested, based on the findings of this research and other authoritative sources.