2,662 research outputs found
Folding a 2-D powder diffraction image into a 1-D scan: a new procedure
A new procedure aiming at folding a powder diffraction 2-D into a 1-D scan is
presented. The technique consists of three steps: tracking the beam centre by
means of a Simulated Annealing (SA) of the diffraction rings along the same
axis, detector tilt and rotation determination by a Hankel Lanczos Singular
Value Decomposition (HLSVD) and intensity integration by an adaptive binning
algorithm. The X-ray powder diffraction (XRPD) intensity profile of the
standard NIST Si 640c sample is used to test the performances. Results show the
robustness of the method and its capability of efficiently tagging the pixels
in a 2-D readout system by matching the ideal geometry of the detector to the
real beam-sample-detector frame. The whole technique turns out in a versatile
and user-friendly tool for the scanning of 2-D XRPD profiles.Comment: 11 pages, 1 table, 2 figure
Retrieval-induced forgetting as motivated cognition
Recalling information from a particular category can reduce one's memory capability for related, non-retrieved information. This is known as the retrieval-induced forgetting effect (RIF; Anderson et al., 1994). The present paper reviews studies that show that the RIF effect is motivated. More specifically, we describe research showing that the need for closure (NFC; the motivation to attain epistemic certainty; Kruglanski and Webster, 1996) generally enhances the RIF, because this prevents uncertainty and confusion from the intrusion of unwanted memories during selective-retrieval. However, when the content of the to-be-forgotten information serves the retriever's goals, NFC reduces RIF. Overall, the present findings are consistent with the view that motivation can affect the magnitude of RIF effects which, in turn, can serve as a mechanism for reaching preferred conclusion
Editorial: Minimally invasive surgery in gynecology oncology: current trends and controversies
[No abstract available
A simple mechanism for the climatological midsummer drought along the Pacific coast of Central America
© ATMOSFERA, 2013. This article is posted here by permission of ATMOSFERA for personal use, not for redistribution. The definitive version was published in Atmósfera 26 (2013): 261-281.The global distribution, seasonal evolution, and underlying mechanisms for the climatological midsummer drought (MSD) are investigated using a suite of relatively high spatial and temporal resolution station observations and reanalysis data with particular focus on the Pacific coast of Central America and southern Mexico. Although the MSD of Central America stands out in terms of spatial scale and coherence, it is neither unique to the Greater Caribbean Region (GCR) nor necessarily the strongest MSD on Earth based on an objective analysis of several global precipitation data sets. A mechanism for the MSD is proposed that relates the latitudinal dependence of the two climatological precipitation maxima to the biannual crossing of the solar declination (SD), driving two peaks in convective instability and hence rainfall. In addition to this underlying local mechanism, a number of remote processes tend to peak during the apex of the MSD, including the North American monsoon, the Caribbean low-level jet, and the North Atlantic subtropical high, which may also act to suppress rainfall along the Pacific coast of Central America and generate interannual variability in the strength or timing of the MSD. However, our findings challenge the existing paradigm that the MSD owes its existence to a precipitation-suppressing mechanism. Rather, aided by the analysis of higher-temporal resolution precipitation records and considering variations in latitude, we suggest the MSD is essentially the result of one precipitation-enhancing mechanism occurring twice.The authors gratefully acknowledge funding from the NOAA Climate Program Office (CPO)
Modeling, Analysis, Predictions, and Projections (MAPP) Program, under awards NA10OAR0110239
to the Woods Hole Oceanographic Institution, NA10OAR4310253 to the University of Maryland, and
NA10OAR4310252 to Columbia University
evolution of multifunctional land use systems in mountain areas in italy
This work presents an analysis of the evolution of human activity in Italian mountain areas, as regards to agricultural and forestry land use. Due to the large area occupied by woodlands, the analysis focusses on the relationships between man and forests. Three closely linked systems have been analysed: agriculture, pasturage and silviculture, which are primary resources used to satisfy human food and energy requirements. From the point of view of the landscape, crops and forest products remain separate entities, even if a link to pasturage remains. Two typical cases of multifunctional systems have been described. The first is related to the alpine area, and the second one concerns the Apennines. The documentation on land use in mountain areas underlines the deep-seated relationships that have developed over time between human activity and the forest. Until the middle of the 20th century, the agriculture-forestry systems were integrated into field, pasture and woodlands in which the portion dedicated to pasture was dominant. Today, forests play a primary role since they offer economic advantages and when correctly managed they can provide a diversified flow of services
Personalized Treatment of Vulvar Cancer
Vulvar cancer (VC) accounts for 5% of all gynecologic cancer and the most common histological type is squamous cell carcinoma (up to 90%
Use of botulinum toxin in aesthetic medicine and gynaecology: current approaches, controversies, and future directions
This review looks at the use of botulinum toxin in the gynaecological field with the aim of determining what needs to be further investigated to achieve a standardized application. Numerous studies have been conducted to explore how botulinum toxins (BoNT) can be applied, and it is becoming popular for treating various disorders such as chronic pelvic pain, vestibulodynia, and vaginism. However, the exact dosage and ideal location for injections still need to be clarified. The objective of this study is to point out which aspects need to be more carefully studied to ensure a consistent use of BoNT in gynaecology
"Letting myself go forward past wrongs": How regulatory modes affect self-forgiveness
The present research addresses the question of whether regulatory-mode orientations affect self-forgiveness. We expected that people with a strong locomotion orientation would be more inclined to self-forgiveness because of their tendencies toward movement and change, which focus them on the future, whereas people with a strong assessment orientation would refrain from self-forgiveness due to their evaluative tendencies which focus them on the past. These hypotheses were supported by the results in four studies that tested the relation between regulatory modes and self-forgiveness by measuring (Studies 1, 3 and 4) and manipulating (Study 2) regulatory-mode-orientations. Finally, in Study 4 we examined more closely our hypothesis that the relation between self-forgiveness and regulatory modes is mediated by past and future temporal foci. The implications of the results for regulatory mode theory are also discussed
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