Bex: un ambiente user-friendly per esplorare articoli scientifici e bibliografie

Un'applicazione web user-friendly di supporto ai ricercatori per l'esecuzione efficiente di specifici tasks di ricerca e analisi di articoli scientifici

KrigInv: An efficient and user-friendly implementation of batch-sequential inversion strategies based on kriging

Several strategies relying on kriging have recently been proposed for adaptively estimating contour lines and excursion sets of functions under severely limited evaluation budget. The recently released R package KrigInv 3 is presented and offers a sound implementation of various sampling criteria for those kinds of inverse problems. KrigInv is based on the DiceKriging package, and thus benefits from a number of options concerning the underlying kriging models. Six implemented sampling criteria are detailed in a tutorial and illustrated with graphical examples. Different functionalities of KrigInv are gradually explained. Additionally, two recently proposed criteria for batch-sequential inversion are presented, enabling advanced users to distribute function evaluations in parallel on clusters or clouds of machines. Finally, auxiliary problems are discussed. These include the fine tuning of numerical integration and optimization procedures used within the computation and the optimization of the considered criteria.

Family-Friendly Employment Policies: What do People Want?

This research examines what people want in terms of family-friendly employment policies within the workplace. Two groups were compared: undergraduate students preparing themselves for the workforce and Baby Boomers that are about to, or already have, retired. The sample was chosen from current University of Connecticut fourth year students and alumni who graduated from the University of Connecticut between 1970 and 1978. Data was collected using an online questionnaire, mainly consisting of closed-ended questions on four and five point Likert scales. Analysis indicates differences between males and females in their response to employment policies, particularly their opinions in terms of sick leave. Alumni, many of whom are part of the sandwich generation, are less worried about child, partner, or elder care responsibilities than one might expect.

A practice-based culminating experience with Texas Children's Hospital: A hospital's journey to baby-friendly status

Breastfeeding and the use of human milk are widely accepted as the most complete form of nutrition for infants. Breastfeeding is shown to be associated with many positive health outcomes for both infants and mothers. Healthy People 2000 goals to increase breastfeeding rates in the early postpartum period to 75% fell short, with only 64% of mothers meeting this objective. Lack of support from healthcare providers, and unsupportive hospital policies and practices are noted as barriers to the initiation and duration of breastfeeding. The purpose of this study was to evaluate implementation of the BFHI Ten Steps to Successful Breastfeeding at Texas Children's Hospital. ^ The Baby-Friendly Hospital Initiative (BFHI) was developed in 1991 by the World Health Organization and the United Nations Children's Fund (UNICEF) to ensure that healthcare facilities offering maternity services adhere to the Ten Steps of Successful Breastfeeding and the International Code of Marketing of Breast-Milk Substitutes, and create legislation to protect the rights of breastfeeding women. The instrument used in this study was the BFHI 100 Assessment Tool created by Dr. Laura Haiek, Director of Public Health in Monteregie, Quebec, and her staff at Health and Social Services Agency of Quebec. The BFHI 100 tool utilizes 100 different indicators of compliance with BFHI through questionnaires administered to staff and administrators, pregnant and postpartum mothers, and an observer. ^ The study concluded that although there is much room for improvement in educating breastfeeding mothers, overall, the mothers interviewed were satisfied with their level of care in regards to breastfeeding support. Areas of improvement include staff training, as some nursing staff admitted to relying on the lactation consultants to provide most of the breastfeeding education for mothers. Only a small percentage of mothers interviewed reported that their baby “roomed-in” on average of 22 hours per day during their hospital stay. Staff encouragement of the rooming-in practice will help to increase the proportion of mothers who allow their babies to room-in. The current breastfeeding policy will also need to be revised and strengthened to be compliant with the Ten Steps. Ideally, Baby-Friendly practices will become the norm after staff are trained and policy revisions are made. Staff training and acceptance of breastfeeding as optimal nutrition for infants are the most critical factors that will ultimately drive change for the organization. ^

Assessment of Youth-Friendly Postabortion Care Services: A Global Tool for Assessing and Improving Postabortion Care for Youth

This tool is designed to help assessment teams, project managers, supervisors, and providers collect detailed information on the quality of Postabortion Care (PAC) services provided to adolescents at a given facility in order to make services more youth-friendly. It can also be used before PAC services have been established to see how best to design PAC services to meet youth’s needs. The assessment process facilitates the development of action plans for quality improvement that can help facilities address policy, operations, training, and other program areas needing adjustments and change. The tool also provides essential baseline information, allowing for repeated applications to measure changes and the impact of program interventions. Although the tool is primarily for use by a team, it may also be used by an individual.

Saving Young Lives: Pathfinder International’s Youth-Friendly Postabortion Care Project

As many as 2.5 million adolescent women seek abortion each year, and nearly 70,000 women die from complications related to unsafe abortion, of which almost half are women under the age of 25. A further 5 million women suffer disability due to unsafe abortion yearly. In most developing countries, abortion is legally restricted or highly inaccessible, which leads young women to seek services from unskilled practitioners often leading to incomplete, septic abortions and massive bleeding, which can result in permanent injury, infertility, and death. Based on our deeply held belief that all people, including adolescents, have a right to sexual and reproductive health services and the importance of addressing adolescent needs within Postabortion Care (PAC) services, Pathfinder used private funds to initiate a Youth-Friendly Postabortion Care (YFPAC) program in eight sub-Saharan African countries. Implemented between June 2007 and May 2008, the YFPAC program offered an opportunity to apply the PAC Consortium’s Technical Guidance on Youth-Friendly PAC, generating promising approaches and lessons learned. The goal of the YFPAC initiative was to increase access to PAC services that are responsive to adolescent needs in sub-Saharan Africa. While outcomes varied according to the country, the overall outcomes included: Increased community support for services and activities that prevent unwanted pregnancy, decreased stigma around abortion, and awareness of the issue of unsafe abortion among adolescent women: 311 peer educators reached almost 17,487 youth and other community members; 171 stakeholders (e.g., religious and traditional leaders, health officials, and local government officials) were sensitized on YFPAC, resulting in a positive shift in communities’ attitudes toward youth in need of PAC services. 125 service providers were trained to deliver YFPAC services and three doctors in Ghana were provided with a technical update on YFPAC. YFPAC services are available in Angola, Ghana, Nigeria, Mozambique, Tanzania, Uganda, Ethiopia, and Kenya. Pathfinder introduced YFPAC services into 25 facilities (in 27 service delivery points), and provided more than 3,800 clients with YFPAC services throughout the eight countries. The number of adolescent PAC clients seen at the project facilities increased— 710 clients were seen in the first quarter, 1,144 were seen in the fourth. The number of adolescent PAC clients who adopt a contraceptive method to prevent future unintended pregnancies has increased. Statistics show an average postabortion contraceptive acceptance of 69%, with the highest acceptance being 83% and the lowest being 44%. Evidence-based approaches, tools, and lessons learned are being disseminated and used for scale-up or replication of YFPAC interventions.

Energy- and environmentally efficient road management: The case of the Spanish motorway network

Transport is responsible for 41% of CO2 emissions in Spain, and around 65% of that figure is due to road traffic. Tolled motorways are currently managed according to economic criteria: minimizing operational costs and maximizing revenues from tolls. Within this framework, this paper develops a new methodology for managing motorways based on a target of maximum energy efficiency. It includes technological and demand-driven policies, which are applied to two case studies. Various conclusions emerge from this study. One is, that the use of intelligent payment systems is recommended; and another, is that the most sustainable policy would involve defining the most efficient strategy for each motorway section, including the maximum use of its capacity, the toll level which attracts the most vehicles, and the optimum speed limit for each type of vehicle.

HERMES: A user-friendly connectivity analysis software

The analysis of the interdependence between time series has become an important field of research, mainly as a result of advances in the characterization of dynamical systems from the signals they produce, and the introduction of concepts such as Generalized (GS) and Phase synchronization (PS). This increase in the number of approaches to tackle the existence of the so-called functional (FC) and effective connectivity (EC) (Friston 1994) between two, (or among many) neural networks, along with their mathematical complexity, makes it desirable to arrange them into a unified toolbox, thereby allowing neuroscientists, neurophysiologists and researchers from related fields to easily access and make use of them.

Effects of a bifenthrin-treated net on the natural enemies Aphidius colemani (Haliday) and Adalia bipunctata L. in a cucumber crop in Central Spain. Semi-field experiments

Pest management practices that rely on pesticides are growing increasingly less effective and environmentally inappropriate in many cases and the search of alternatives is under focus nowadays. Exclusion of pests from the crop by means of pesticide-treated screens can be an eco-friendly method to protect crops, especially if pests are vectors of important diseases. The mesh size of nets is crucial to determine if insects can eventually cross the barrier or exclude them because there is a great variation in insect size depending on the species. Long-lasting insecticide-treated (LLITN) nets, factory pre-treated, have been used since years to fight against mosquitoes vector of malaria and are able to retain their biological efficacy under field for 3 years. In agriculture, treated nets with different insecticides have shown efficacy in controlling some insects and mites, so they seem to be a good tool in helping to solve some pest problems. However, treated nets must be carefully evaluated because can diminish air flow, increase temperature and humidity and decrease light transmission, which may affect plant growth, pests and natural enemies. As biological control is considered a key factor in IPM nowadays, the potential negative effects of treated nets on natural enemies need to be studied carefully. In this work, the effects of a bifentrhin-treated net (3 g/Kg) (supplied by the company Intelligent Insect Control, IIC) on natural enemies of aphids were tested on a cucumber crop in Central Spain in autumn 2011. The crop was sown in 8x6.5 m tunnels divided in 2 sealed compartments with control or treated nets, which were simple yellow netting with 25 mesh (10 x 10 threads/cm2; 1 x 1 mm hole size). Pieces of 2 m high of the treated-net were placed along the lateral sides of one of the two tunnel compartments in each of the 3 available tunnels (replicates); the rest was covered by a commercial untreated net of a similar mesh. The pest, Aphis gossypii Glover (Aphidae), the parasitoid Aphidius colemani (Haliday) (Braconidae) and the predator Adalia bipunctata L. (Coccinellidae) were artificially introduced in the crop. Weekly sampling was done determining the presence or absence of the pest and the natural enemies (NE) in the 42 plants/compartment as well as the number of insects in 11 marked plants. Environmental conditions (temperature, relative humidity, UV and PAR radiation) were recorded. Results show that when aphids were artificially released inside the tunnels, neither its number/plant nor their distribution was affected by the treated net. A lack of negative effect of the insecticide-treated net on natural enemies was also observed. Adalia bipunctata did not establish in the crop and only a short term control of aphids was observed one week after release. On the other hand, A. colemani did establish in the crop and a more long-term effect on the numbers of aphids/plant was detected irrespective of the type of net. KEY WORDS: bifenthrin-treated net, Adalia bipunctata, Aphidius colemani, Aphis gossypii, semi-field