Improving education outcomes: in colleges, universities, and beyond

While most of the attention of the public, the policymakers, and this conference is on improving our K -12 education system, our higher education also needs attention. Higher education is undergoing dramatic changes that have to be considered in conjunction with the demands on and the changes in the K -12 system. Similarly, there are common needs of the two systems, and lessons from higher education should be considered in any K -12 reform proposal.Education

Barriers to family planning use in the Eastern Democratic Republic of the Congo: an application of the theory of planned behaviour using a longitudinal survey

OBJECTIVE: In the Democratic Republic of the Congo, there is a low adherence of the population to the use of family planning (FP) due to various social barriers. This study aimed to understand the drives from social barriers to the use of FP in women in the Kivu, a region particularly affected by poverty and many years of conflicts. A theory of planned behaviour (TPB) using a generalised structural equation modelling has been applied to understand the complex sociocultural drivers to the intention and the ultimate decision to use FP. DESIGN: Longitudinal study. SETTING: A community-based approach was used to investigate FP use in the North and South-Kivu regions. PARTICIPANTS: Overall, 1812 women 15 years and older were enrolled in the baseline study and 1055 were retrieved during the follow-up. PRIMARY AND SECONDARY OUTCOMES: FP use and intention to use FP. RESULTS: The mean age was 36+/-12.9 years, with a minimum of 15 years old and a maximum of 94 years old. Among sexually active participants, more than 40% used a modern contraceptive method at the last sexual intercourse. Education was positively and significantly associated with intention to use FP (beta=0.367; p=0.008). Being married was positively and marginally significantly associated with intention to use FP (beta=0.524: p=0.050). Subjective norms were negatively and significantly associated with intention to use FP (beta=-0.572; p=0.003) while perceived control was positively associated with intention to use FP (beta=0.578; p<0.0001). Education and perceived control were positively and significantly associated with the use of FP (respectively, beta=0.422, p=0.017; and beta=0.374; p=0.017), while Intention to use FP was positively and marginally significantly associated with the use of FP (beta=0.583; p=0.052). CONCLUSION: TPB helped understand sociocultural barriers to FP use and it can be useful to define adapted strategies in different contexts

TEACHING THE CURRENTOR FUTURE GENERAL MANAGERS: A CRITICAL FUNCTION FOR THE MIS FACULTY

For the past several years, information systems faculties have worked diligently to develop effective curriculums for students majoring in the field. Today, an increasingly important, and perhaps more important role for the information systems faculty is that of educating non-majors -- students who wish to be, ar currently are, general managers. Increasingly, general managers are determining the extent or use of the computer and the effectiveness of the information systems function in their organizations. Systems design and programming is more and more being performed within end-user departments and by end-users themselves. Therefore, in the 80\u27s an increased degree of understanding of the information function by general management is vital. However, general management students vary widely. In addition, the amount of material which might be taught is overwhelming. Finally, the amount of time available in general management curriculums for information systems material is limited. Three current approaches to these constraints, and some general conclusions concerning teaching information systems to general managers are presented

Reconstruction of the two-dimensional gravitational potential of galaxy clusters from X-ray and Sunyaev-Zel'dovich measurements

The mass of galaxy clusters is not a direct observable, nonetheless it is commonly used to probe cosmological models. Based on the combination of all main cluster observables, that is, the X-ray emission, the thermal Sunyaev-Zel'dovich (SZ) signal, the velocity dispersion of the cluster galaxies, and gravitational lensing, the gravitational potential of galaxy clusters can be jointly reconstructed. We derive the two main ingredients required for this joint reconstruction: the potentials individually reconstructed from the observables and their covariance matrices, which act as a weight in the joint reconstruction. We show here the method to derive these quantities. The result of the joint reconstruction applied to a real cluster will be discussed in a forthcoming paper. We apply the Richardson-Lucy deprojection algorithm to data on a two-dimensional (2D) grid. We first test the 2D deprojection algorithm on a $\beta$-profile. Assuming hydrostatic equilibrium, we further reconstruct the gravitational potential of a simulated galaxy cluster based on synthetic SZ and X-ray data. We then reconstruct the projected gravitational potential of the massive and dynamically active cluster Abell 2142, based on the X-ray observations collected with XMM-Newton and the SZ observations from the Planck satellite. Finally, we compute the covariance matrix of the projected reconstructed potential of the cluster Abell 2142 based on the X-ray measurements collected with XMM-Newton. The gravitational potentials of the simulated cluster recovered from synthetic X-ray and SZ data are consistent, even though the potential reconstructed from X-rays shows larger deviations from the true potential. Regarding Abell 2142, the projected gravitational cluster potentials recovered from SZ and X-ray data reproduce well the projected potential inferred from gravitational-lensing observations. (abridged)Comment: accepted for publication in the journal A&

Optimal sequencing of a set of positive numbers with the variance of the sequence's partial sums maximized

We consider the problem of sequencing a set of positive numbers. We try to find the optimal sequence to maximize the variance of its partial sums. The optimal sequence is shown to have a beautiful structure. It is interesting to note that the symmetric problem which aims at minimizing the variance of the same partial sums is proved to be NP-complete in the literature.Comment: 12 pages;Accepted for publication in Optimization Lette

Deconvolution of complex G protein-coupled receptor signaling in live cells using dynamic mass redistribution measurements

Label-free biosensor technology based on dynamic mass redistribution (DMR) of cellular constituents promises to translate GPCR signaling into complex optical 'fingerprints' in real time in living cells. Here we present a strategy to map cellular mechanisms that define label-free responses, and we compare DMR technology with traditional second-messenger assays that are currently the state of the art in GPCR drug discovery. The holistic nature of DMR measurements enabled us to (i) probe GPCR functionality along all four G-protein signaling pathways, something presently beyond reach of most other assay platforms; (ii) dissect complex GPCR signaling patterns even in primary human cells with unprecedented accuracy; (iii) define heterotrimeric G proteins as triggers for the complex optical fingerprints; and (iv) disclose previously undetected features of GPCR behavior. Our results suggest that DMR technology will have a substantial impact on systems biology and systems pharmacology as well as for the discovery of drugs with novel mechanisms

Behavioral responses of rural and urban greater white-toothed shrews (Crocidura russula) to sound disturbance

The development of urban areas imposes challenges that wildlife must adapt to in order to persist in these new habitats. One of the greatest changes brought by urbanization has been an increase in anthropogenic noise, with negative consequences for the natural behavior of animals. Small mammals are particularly vulnerable to urbanization and noise, despite some species having successfully occupied urban environments. To understand some of the traits that have enabled small mammals to deal with the consequences of urbanization, we compared the behavioral responses of urban and rural greater white-toothed shrews, Crocidura russula, to different sound stimuli. A total of 32 shrews, 16 from each habitat, were exposed in captivity to four sound treatments: silence, tawny owl calls, traffic noise, and white noise. Urban and rural shrews showed different behaviors, with urban animals being more active, feeding more frequently, and using less torpor than rural individuals. However, responses to sound treatments were similar in both populations: urban and rural shrews exhibited a slight decrease in activity and feeding behavior, as well as more fleeing responses, when exposed to traffic noise or white noise, but not to owl calls. These results suggest urbanization induces long-term changes in the general activity of C. russula, but the short-term behavioral response to sound disturbance remains similar in rural and urban populations.info:eu-repo/semantics/publishedVersio