Calculation of the Lowest Resonant States of H− and Li by the Complex Absorbing Potential Method

The analysis of the features of the method of complex absorbing potential (CAP) is carried out for a single-channel problem with an explicit parameterization of the scattering matrix. It is shown that there can be several types of CAP trajectories depending on the choice of the initial conditions. In any case, the estimation of the resonance parameters from the position of the optimal trajectory point can lead to a systematic error or an ambiguous result. In special cases, the search for the optimal point can be replaced by the averaging over a closed section of the trajectory. The CAP trajectories constructed in the H− and Li resonance calculations correlate well with the model trajectories, which have a curl around the resonance. The averaging over a closed area of the trajectory leads to better estimates of the energy and width of the resonance in comparison with the technique of searching for the optimal point.

Case Report: An Undefined Liver Lesion in a Young Man With Severe Aplastic Anemia: A Teachable Moment

In this work, we reported a young man complaining of asthenia and intermittent fever for 10 days, and an ultrasound showed an undefined lesion on his liver. Facing the patient's situation with severe agranulocytosis, anemia, and thrombocytopenia, we passed through a tough diagnostic process for choosing an appropriate treatment for him with an ambiguous result of pathological biopsy. The undefined liver lesion was successfully solved by withdrawing the androgen for observation, without lobectomy. The lesion gradually diminished over 2 years of follow-up.

Improving the Quality of Life of Family Caregivers of People with Alzheimer’s Disease through Virtual Communities of Practice: A Quasiexperimental Study

Caring for a person with dementia burdens family caregivers, and there is a close negative relationship between this burden and their quality of life (QoL). Research suggests that caregivers’ main needs are information and training about the disease and support from others experiencing the same situation, and Internet interventions hold considerable promise for meeting these needs. Virtual communities of practice (VCoPs) are Internet frameworks to share knowledge where members collaborate and achieve a sense of trust in the community. This paper seeks to evaluate the impact of participating in a VCoP (developed through an App) on the QoL of caregivers to people with Alzheimer’s. Results show QoL before and after the intervention changed significantly. The impact of VCoP on caregivers’ overall QoL is moderated by age and relation with the person with Alzheimer’s, specifically those over 65, and spouses. VCoPs allow interaction and knowledge sharing among caregivers which provide them mainly with information and support from peers helping them to meet their needs. Furthermore, caregivers’ QoL did not decrease when their relative deteriorated functionally, which could be due to the participation in VCoP. Although we found significant pre- and post differences in caregivers’ health literacy, we must report the ambiguous result that this variable only impacts on QoL’s physical domain. Participants also reported that they had a positive experience because the App was perceived to be a useful tool, because they could manage their own participation and they met peers and felt less lonely. Results suggest that participation in a VCoP impacts positively on caregivers’ QoL.

THEORETICAL ASPECTS OF EVALUATING THE EFFECTIVENESS OF FINANCIAL LEVERS

The article considers the theoretical aspects of evaluating the effectiveness of financial levers. The subject of the research is the approaches to the formation of financial levers groups and determining their impact on the economic entities activities in special (free) economic zones. The purpose of the article is to highlight the approaches to assessing the effectiveness of financial levers action. The research methodology is general scientific and special methods. The article determines the main approaches to the selection of indicators for assessing of business entities activities, taking into account the specifics of their functioning in special (free) economic zones. It is noted that today an analysis of the effectiveness of financial levers is not carried out on a regular basis, various indicators are used, and there is no systematic approach. Financial levers are an integral part of the financial mechanism and they operate in conjunction with its other elements. Therefore, the evaluation of the effectiveness of financial leverage using should be carried out taking into account the purpose of their use and the period of obtaining the expected results. Generalization of approaches to the analysis of the effectiveness of financial levers made it possible to propose to evaluate their action on the following grounds: in accordance with the sphere of manifestation of efficiency – economic, social, budgetary and environmental; in accordance with the period of obtaining the expected results – efficiency in the short, medium and long term; in accordance with the level of manifestation – efficiency at the national, regional, sectoral levels, the level of enterprises and individual specially selected territories. In accordance with the proposed system of indicators, calculations were carried out, which showed an ambiguous result of the influence of financial levers on the business entities activities. The conducted research and existing positive foreign experience made it possible propose to develop a concept for the special zones creation with a balanced system of financial levers.

Climate change via CO2 drawdown from astrophysically initiated atmospheric ionization?

Motivated by the occurrence of a moderately nearby supernova near the beginning of the Pleistocene, possibly as part of a long-term series beginning in the Miocene, we investigated whether nitrate rainout resulting from the atmospheric ionization of enhanced cosmic ray flux could have, through its fertilizer effect, initiated carbon dioxide drawdown. Such a drawdown could possibly reduce the greenhouse effect and induce the climate change that led to the Pleistocene glaciations. We estimate that the nitrogen flux enhancement onto the surface from an event at 50 pc would be of order 10%, probably too small for dramatic changes. We estimate deposition of iron (another potential fertilizer) and find it is also too small to be significant. There are also competing effects of opposite sign, including muon irradiation and reduction in photosynthetic yield caused by UV increase from stratospheric ozone layer depletion, leading to an ambiguous result. However, if the atmospheric ionization induces a large increase in the frequency of lightning, as argued elsewhere, the amount of nitrate synthesis should be much larger, dominate over the other effects and induce the climate change. More work needs to be done to clarify the effects on lightning frequency.

The Resolution of Domain Names vs. Trademark Conflicts: A Case Study on Regulation Beyond the Nation State, and Related Problems

SummaryWith the Internet a new kind of problem has emerged at the interface between a specific property right system traditionally protected by territory-bound approach and a new property right system requiring global protection. After three years of experience, an assessment of the Uniform Dispute Settlement Policy as the institutional solution established to solve domain name vs. trademark conflicts comes to an ambiguous result. While the sheer number of solved cases not only underlines the necessity of the UDKP but also its efficiency, statistical data on forum shopping activities of trademark owners and the strong bias of panel decisions in favour of trademark owners, together with the mandatory character of the UDKP and its self-executing decisions, present cause for serious concern, with questions of accountability and public control being most important. The UDKP shares this concern with a variety of self coordinating self-organising, and self-regulating private transnational institutions that claim quasi-public authority in a functionally specified sector of the global economy.

Nuclear magnetic resonance spectra of the epihalohydrins. I. Signs of long-range spin–spin coupling constants in epichlorohydrin

The complete analysis of the proton magnetic resonance spectrum of epichlorohydrin as 10 mole% solutions in benzene and in acetonitrile is reported. Extensive tickling experiments demonstrate that the cisoid coupling constants over four bonds are negative, while the corresponding transoid coupling constants are positive. Detailed results for the benzene solution, in which the non-equivalent protons of the —CH2Cl moiety have almost identical chemical shifts, show that although all the resonances may be unequivocally identified and measured to a high order of precision (± 0.03 Hz), an iterative computer fit (LAOCOON-3) has a larger uncertainty for the derived parameters than indicated by the "probable errors" furnished by the computer program. Analysis of the acetonitrile solution, however, furnishes a less ambiguous result. In addition, it is noted that use of relative apparent intensities of resonance peaks can lead to the wrong sign of those coupling constants whose magnitudes are near zero.