Surface properties of nuclear pairing with the Gogny force in a simplified model

Surface properties of neutron-neutron (T=1) pairing in semi-infinite nuclear matter in a hard wall potential are investigated in BCS approximation using the Gogny force. Surface enhancement of the gap function, pairing tensor and correlation energy density is put into evidence.Comment: 16 pages; 4 figures ; submitted to Phys. Lett.

The Economic Dimension of Social Trust

The statistical analyses performed demonstrated a statistically significant correlation between the examined phenomena and proved that the highest developmental level is a characteristic feature of the districts with a high level of social trust. This conforms the claims of Polish and international scholars who see trust as a non-economic determinant of economic development

Pairing correlation in nuclear matter from Skyrme force

The properties of pairing correlation in nuclear matter are investigated by using various versions of Skyrme forces. Truncation of states involving pairing correlation, necessary due to zero range nature of the Skyrme force, is discussed in detail. A plateau appears in pairing gap versus cutoff for each force. We propose to choose the cutoff parameter in the middle of the plateau so that the parameterization is independent of nuclides.Comment: Latex, Submitted to Phys. Lett. B, 8 pages, 1 table and 3 uuencoded postscript figures (modified) included, UT-Komaba 94-

POCZUCIE PODMIOTOWOŚCI I AKTYWNOŚĆ ORGANIZACYJNA MIESZKAŃCÓW ŁODZI

The subject of this paper is subjectivity and social participation of Łódź residents in the context of civil society. Thus, the aim of the paper is to answer the question about the level of subjectivity of Łódź residents. The other aim is to examine the influence of subjectivity on one of the dimensions of the activity, namely, involvement in a more or less formalised non-government organisations.Przedmiotem rozważań niniejszego artykułu jest podmiotowość i partycypacja społeczna mieszkańców Łodzi w kontekście społeczeństwa obywatelskiego. Celem artykułu jest zatem próba odpowiedzi na pytanie o poziom podmiotowości łodzian oraz zbadanie wpływu podmiotowości na jeden z wymiarów aktywności, czyli zaangażowanie w mniej lub bardziej sformalizowane organizacje pozarządowe

Implementation Strategies to Reduce Hospital Readmission Rates in Adults with Sepsis: A Quality Improvement Project

Background: Sepsis is a concern in healthcare, as patients are 2 to 3 times more likely to be readmitted to the hospital than those with other illnesses. Readmitted patient with sepsis costs the healthcare system $3.5 billion dollars per year. Effective care coordination is a tool that decreases readmission rates in other illnesses and is likely applicable to those with sepsis. The purpose of this quality improvement project was to determine if primary care provider follow-up appointments, increased home care utilization, and patient education would reduce sepsis readmissions. Methods: The Transitional Care Model guided project design and The Kotter Model framed implementation of improvements. Design was a pre/post comparison in two Midwest hospitals, with nurses, social workers, care managers, and patients with sepsis. Stakeholders were engaged, the organization assessed, clinicians were educated, workflow was redesigned, and patient input obtained Interventions: Evidence-based interventions were implemented to improve patient understanding of sepsis, discharge planning, and care coordination post-hospitalization. This included assessment of discharge need by a care manager; and increasing home health care referrals, registered nurse compliance with sepsis care plan and education documentation, and primary care follow-up appointment utilization. Results: The convenience sample (N=17) prior (n=7) to and after (n=10) implementation were mean age 75 and 60.5 years, 71.4% and 70% male, and 71.4% and 90% white respectively. Nurse documentation of sepsis education improved 60% (Fishers Exact Test 0.02) and care plan initiation improved 3.1% (Chi-square 0.02). Patients reported somewhat (37%), fairly (50%, or very good (13%) understanding of sepsis following education by the nurse. A decline in home health referrals (11.1%) and primary care appointments (9.7%) occurred. No change in readmission rates were found. Conclusions: Further intervention is needed to improve sepsis care plan initiation and patient education and documentation to determine if these interventions reduce the readmission rate. The majority of patients went home without a follow-up primary care appointment or home health care set up. Setting up follow-up care may improve the transition between hospitalization and home and prevent readmission of sepsis patients

Modulation of neutral interstellar He, Ne, O in the heliosphere. Survival probabilities and abundances at IBEX

Direct sampling of neutral interstellar (NIS) atoms by the Interstellar Boundary Explorer (IBEX) can potentially provide a complementary method for studying element abundances in the Local Interstellar Cloud and processes in the heliosphere interface.}{We set the stage for abundance-aimed in-depth analysis of measurements of NIS He, Ne, and O by IBEX and determine systematic differences between abundances derived from various calculation methods and their uncertainties.}{Using a model of ionization rates of the NIS species in the heliosphere, based on independent measurements of the solar wind and solar EUV radiation, we develop a time-dependent method of calculating the survival probabilities of NIS atoms from the termination shock (TS) of the solar wind to IBEX. With them, we calculate densities of these species along the Earth's orbit and simulate the fluxes of NIS species as observed by IBEX. We study pairwise ratios of survival probabilities, densities and fluxes of NIS species at IBEX to calculate correction factors for inferring the abundances at TS.}{The analytic method to calculate the survival probabilities gives acceptable results only for He and Ne during low solar activity. For the remaining portions of the solar cycle, and at all times for O, a fully time dependent model should be used. Electron impact ionization is surprisingly important for NIS O. Interpreting the IBEX observations using the time dependent model yields the LIC Ne/O abundance of $0.16\pm40$. The uncertainty is mostly due to uncertainties in the ionization rates and in the NIS gas flow vector.}{The Ne/He, O/He and Ne/O ratios for survival probabilities, local densities, and fluxes scaled to TS systematically differ and thus an analysis based only on survival probabilities or densities is not recommended, except the Ne/O abundance for observations at low solar activity.Comment: Astronomy & Astrophysics, in press. Language and editing corrections implemente

Investigation of key challenges facing aerogel composites development through multiscale approach

Error on title page. Date of award is 2022The aerogel particulate and fibre reinforced composites are becoming more and more popular due to their exceptional properties, nevertheless, they do face a range of challenges that need to be overcome for wider applications. The main ones include a lack of understanding of the interactions between aerogels and reinforcing fibre materials, lack of appropriate models to predict their performance, and finally, lack of property database, allowing for an informative selection of aerogel composites as a viable alternative to other materials. The primary goal of this work is to tackle those challenges and provide a better fundamental understanding of some cases of aerogel composites. In order to fulfil the thesis' goals, the aerogel influence on the various thermal and mechanical properties of epoxy and vinyl ester polymers were investigated. By incorporating various weight contents and sizes of silica and polyimide aerogel particles into these polymers, their thermal conductivity, compressive properties, and other thermomechanical properties in these particle-filled polymers have been evaluated. Overall, created composites presented a significant decrease in thermal conductivity, while the introduction of porous particles deteriorated composite mechanical response. Additionally, micromechanical testing of the interface between aerogel and fibre reinforcement has been performed for the first time to understand their bonding ability. By designing a method to deposit an aerogel droplet surrounding the fibre, the microbond tests were enabled, and the results revealed poor adhesion between aerogel and selected fibre type in general. In addition to the experimental part, this study also focused on modelling aerogels and aerogel composites, which provided insight into the interactions between aerogels and most common reinforcement materials using a multiscale approach. As a result, the nanoscale analysis using molecular dynamics allowed to estimate thermal and mechanical properties of low density silica and polyimide. What is more, the aerogel-fibre interfacial properties values have also been obtained though modelling. Finally, the microscale model was used to model the thermal and mechanical properties of epoxy composites. A close match between experimental and modelled thermal conductivity and compressive modulus of epoxy combined with low density silica or polyimide particles has been achieved by incorporating the nanoscale properties into the micromechanical model.The aerogel particulate and fibre reinforced composites are becoming more and more popular due to their exceptional properties, nevertheless, they do face a range of challenges that need to be overcome for wider applications. The main ones include a lack of understanding of the interactions between aerogels and reinforcing fibre materials, lack of appropriate models to predict their performance, and finally, lack of property database, allowing for an informative selection of aerogel composites as a viable alternative to other materials. The primary goal of this work is to tackle those challenges and provide a better fundamental understanding of some cases of aerogel composites. In order to fulfil the thesis' goals, the aerogel influence on the various thermal and mechanical properties of epoxy and vinyl ester polymers were investigated. By incorporating various weight contents and sizes of silica and polyimide aerogel particles into these polymers, their thermal conductivity, compressive properties, and other thermomechanical properties in these particle-filled polymers have been evaluated. Overall, created composites presented a significant decrease in thermal conductivity, while the introduction of porous particles deteriorated composite mechanical response. Additionally, micromechanical testing of the interface between aerogel and fibre reinforcement has been performed for the first time to understand their bonding ability. By designing a method to deposit an aerogel droplet surrounding the fibre, the microbond tests were enabled, and the results revealed poor adhesion between aerogel and selected fibre type in general. In addition to the experimental part, this study also focused on modelling aerogels and aerogel composites, which provided insight into the interactions between aerogels and most common reinforcement materials using a multiscale approach. As a result, the nanoscale analysis using molecular dynamics allowed to estimate thermal and mechanical properties of low density silica and polyimide. What is more, the aerogel-fibre interfacial properties values have also been obtained though modelling. Finally, the microscale model was used to model the thermal and mechanical properties of epoxy composites. A close match between experimental and modelled thermal conductivity and compressive modulus of epoxy combined with low density silica or polyimide particles has been achieved by incorporating the nanoscale properties into the micromechanical model

Cybersecurity Considerations with the Increasing Uses of Small Unmanned Aircraft Systems (sUAS) or Drones

The effort to produce this information resource results from a collaborative effort between the Bergen County Technical Schools (high school), through the advisor Andrea Buccino, and a cybersecurity expert mentor. High school senior members of this learning partnership are provided with an interactive learning experience. They gain an increase and knowledge in a particular area of study while under the topical guidance of a mentor. In this example, the high school senior is pursuing coursework in Aerospace Engineering, and this was combined with the focus of cybersecurity to expand the students’ cross-discipline knowledge. This collaborative work was done virtually, given the current pandemic situation