17,555 research outputs found
A model for - kaon cross section
We calculate the cross section for the dissociation of by kaons
within the framework of a meson exchange model. We find that, depending on the
values of the coupling constants used, the cross section can vary from 5 mb to
30 mb at GeV.Comment: 4 pages, 3 eps figure
Fuzzy logic as a decision-making support system for the indication of bariatric surgery based on an index (OBESINDEX) generated by the association between body fat and body mass index
Background: A Fuzzy Obesity Index (OBESINDEX) for use as an alternative in bariatric surgery indication (BSI) is presented. The search for a more accurate method to evaluate obesity and to indicate a better treatment is important in the world health context. BMI (body mass index) is considered the main criteria for obesity treatment and BSI. Nevertheless, the fat excess related to the percentage of Body Fat (%BF) is actually the principal harmful factor in obesity disease that is usually neglected. This paper presents a new fuzzy mechanism for evaluating obesity by associating BMI with %BF that yields a fuzzy obesity index for obesity evaluation and treatment and allows building up a Fuzzy Decision Support System (FDSS) for BSI.

Methods: Seventy-two patients were evaluated for both BMI and %BF. These data are modified and treated as fuzzy sets. Afterwards, the BMI and %BF classes are aggregated yielding a new index (OBESINDEX) for input linguistic variable are considered the BMI and %BF, and as output linguistic variable is employed the OBESINDEX, an obesity classification with entirely new classes of obesity in the fuzzy context as well is used for BSI.

Results: There is a gradual, smooth obesity classification and BSI when using the proposed fuzzy obesity index when compared with other traditional methods for dealing with obesity.

Conclusion: The BMI is not adequate for surgical indication in all the conditions and fuzzy logic becomes an alternative for decision making in bariatric surgery indication based on the OBESINDEX
-kaon cross section in meson exchange model
We calculate the cross section for the dissociation of by kaons
within the framework of a meson exchange model including anomalous parity
interactions. Off-shell effects at the vertices were handled with QCD sum rule
estimates for the running coupling constants. The total -kaon cross
section was found to be mb for 4.1\leq\sqrt{s}\leq5 \GeV.Comment: 13 pages, 4 eps figure
Relationship of arterial and exhaled CO2 during elevated artificial pneumoperitoneum pressure for introduction of the first trocar.
The present study evaluated the correlation between arterial CO2 and exhaled CO2 during brief high-pressure pneumoperitoneum. Patients were randomly distributed into two groups: P12 group (n=30) received a maximum intraperitoneal pressure of 12mmHg, and P20 group (n=37) received a maximum intraperitoneal pressure of 20mmHg. Arterial CO2 was evaluated by radial arterial catheter and exhaled CO2 was measured by capnometry at the following time points: before insufflation, once intraperitoneal pressure reached 12mmHg , 5 minutes after intraperitoneal pressure reached 12mmHg for the P12 group or 20mmHg for the P20 group, and 10 minutes after intraperitoneal pressure reached 12mmHg for the P12 group or when intraperitoneal pressure had decreased from 20mmHg to 12mmHg, for the P20 group. During brief durations of very high intraperitoneal pressure (20mmHg), there was a strong correlation between arterial CO2 and exhaled CO2. Capnometry can be effectively used to monitor patients during transient increases in artificial pneumoperitoneum pressure
European overseas, new frontier for biodiversity research?
The European Overseas Areas are strategically positioned to become a strong focus of biodiversity research in support of sustainable development. In fact, they constitute a complex geopolitical entity extending Europe's presence across the globe, incorporating all ecosystems and oceans from the tropics to the poles. Europe's overseas are mainly islands (most of them located in Biodiversity Hotspots), but also include French Guyana, one of the least disturbed areas of rain forest on Earth. Fulfilling European international commitments, such as the Convention on Biological Diversity, will require special consideration to its overseas areas. This has started to be expressed in the scope of policy instruments, such as the EU Biodiversity Strategy, and funding mechanisms, such as the LIFE+ fund, the BEST Initiative or H2020. The immense diversity of biogeographical settings and the different levels of human pressure encompassed by Europe's Overseas areas allows the testing of comparison-based hypothesis, linking patterns to processes. This unique advantage makes them an ideal setting for biodiversity research of both global significance and local relevance. Such research, however, can only be accomplished through an extensive supporting network. This is where the European FP7 funded NetBiome partnership is making a unique contribution. NetBiome is a consortium of entities from knowledge institutions, business, government and civil society, dedicated to the mobilization of stakeholders to identify and address priority challenges in reconciling conservation of (sub)tropical biodiversity with the sustainable development of Europe's regions and territories, based on the benefits from high biodiversity. Seven international research projects are currently being funded through NetBiome, and the research recommendations under preparation will feed a second call in the near future
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