The Relationships Between Personality Characteristics of Hardiness and Resilient Grief Outcomes in an Aging Female Population

AbstractThere is increasing empirical evidence that bereaved individuals vary considerably in their reactions to loss and that individuals experience varying pathways through the grief process. This quantitative correlational study advanced understanding of Bonanno’s pathways to resilient grief theory and contributed to the strengths-based grief and bereavement literature by examining if hardiness commitment, control, and challenge were significantly related to grief resolution and posttraumatic growth (PTG), controlling for participant age, depression, religiosity, and time since the death of a spouse, in a sample of 218 widowed women aged 50 or older. Descriptive findings revealed that study participants were in their mid-60s, and 75% had lost their spouse in the past five to 10 years. The six research questions were addressed by conducting two hierarchical multiple linear regressions (HMLR), one for each of the two criterion variables of grief resolution and PTG. Results from the first HMLR showed that as levels of hardiness commitment increased, so did grief resolution; in addition, higher levels of depression were significantly associated with lower levels of grief resolution. Findings from the second HMLR indicated that higher levels of hardiness commitment and control were significantly linked to PTG. Moreover, a higher number of years since loss and higher levels of religiosity were significantly related to higher levels of PTG. The identification of personal risk (e.g., depression) and protective (e.g., commitment, control, religiosity) factors concerning resilient grief outcomes may help to inform the development of grief and bereavement initiatives that build resilience and enhance the quality of life among older adult widowed women leading to positive social change

Histo-Blood Group Antigen Assay for Detecting Noroviruses in Water

We evaluated a novel, magnetic-bead-based histo-blood group antigen assay for the recovery of low numbers of norovirus particles. Using this assay, with Norwalk virus seeded in environmental waters as a model, we were able to recover 30 to 300 genomic copies of the virus

Failure to detect infection by oral polio vaccine virus following natural exposure among inactivated polio vaccine recipients

While oral polio vaccine (OPV) has been shown to be safe and effective, it has been observed that it can circulate within a susceptible population and revert to a virulent form. Inactivated polio vaccine (IPV) confers protection from paralytic disease, but provides limited protection against infection. It is possible, then, that an IPV-immunized population, when exposed to OPV, could sustain undetected circulation of vaccine-derived poliovirus. This study examines the possibility of polio vaccine virus circulating within the United States (highly IPV-immunized) population that borders Mexico (OPV-immunized). A total of 653 stool and 20 sewage samples collected on the US side of the border were tested for the presence of poliovirus. All samples were found to be negative. These results suggest that the risk of circulating vaccine-derived poliovirus is low in fully immunized IPV-using populations in developed countries that border OPV-using populations

Structured aqueous processed lignin-based NMC cathodes for energy-dense LIBs with improved rate capability

The cost and environmental impact of lithium-ion batteries (LIBs) can be reduced substantially by enabling the aqueous processing of cathode materials. For the first time, we fabricate high-density, thick NMC111 cathode coatings using water as a solvent, and bio-derived kraft lignin as a binder material. The performance deterioration at high discharge currents is amplified by high mass loading and low bulk porosity. At porosities higher than 60%, the electronic conductivity limits the rate capability of the cathode, while for porosities lower than 30%, ionic conduction causes significant ionic polarization and consequently diminishes rate performance. The underlying lithium-ion diffusion limitation at current densities higher than 0.2 C is mitigated by creating line structures on the surface of the cathode. Structuring the half-dried cathode surface with ceramic blades is preferred over a stamp-like silicon wafer, and the line structures are easier to produce with high mechanical stability in comparison to pit structures. The lignin/water cells investigated herein restore after undergoing rate capability tests (5C), except those with pit structures or ultra-high thickness (>200 μm), due to the extensive crack formation during water evaporation which causes poor mechanical stability. Mechanical and laser structuring methods are compared on the surface of a PVDF/NMP-based cathode. Concerning the implementation in a large-scale battery factory, mechanical structuring is currently considered a processing of choice as it has no surface residuals or waste material. However, laser structuring with ultra-short pulses technique has the potential of outperforming mechanical structuring if the process is optimized to high precision to reduce residual and waste material, due to reproducibility and lower operational costs

The origin of green icebergs in Antarctica

A comparison of samples from a translucent green iceberg with a core from the Ronne Ice Shelf revealed an excellent agreement in isotopic composition, crystal structure, and incorporated sediment particles. Marine shelf ice which constitutes the basal portion of some ice shelves is considered to be the source of green icebergs. It most likely results from "ice pump" processes which produce large amounts of ice platelets in the water column beneath ice shelves. These subsequently accumulate and become compacted into bubble-free, desalinated ice. Iceberg and drift-buoy trajectories indicate that green icebergs observed in the Weddell Sea originate from the Amery Ice Shelf rather than from the Ronne Ice Shelf, although the latter ice shelf is also a potential source

Gene Mapping and Phylogenetic Analysis of the Complete Genome from 30 Single-Stranded RNA Male-Specific Coliphages (Family Leviviridae)

Male-specific single-stranded RNA (FRNA) coliphages belong to the family Leviviridae. They are classified into two genera (Levivirus and Allolevivirus), which can be subdivided into four genogroups (genogroups I and II in Levivirus and genogroups III and IV in Allolevivirus). Relatively few strains have been completely characterized, and hence, a detailed knowledge of this virus family is lacking. In this study, we sequenced and characterized the complete genomes of 19 FRNA strains (10 Levivirus strains and 9 Allolevivirus strains) and compared them to the 11 complete genome sequences available in GenBank. Nucleotide similarities among strains of Levivirus genogroups I and II were 75% to 99% and 83 to 94%, respectively, whereas similarities among strains of Allolevivirus genogroups III and IV ranged from 70 to 96% and 75 to 95%, respectively. Although genogroup I strain fr and genogroup III strains MX1 and M11 share only 70 to 78% sequence identity with strains in their respective genogroups, phylogenetic analyses of the complete genome and the individual genes suggest that strain fr should be grouped in Levivirus genogroup I and that the MX1 and M11 strains belong in Allolevivirus genogroup III. Strains within each genus share >50% sequence identity, whereas between the two genera, strains have <40% nucleotide sequence identity. Overall, amino acid composition, nucleotide similarities, and replicase catalytic domain location contributed to phylogenetic assignments. A conserved eight-nucleotide signature at the 3′ end of the genome distinguishes leviviruses (5′ ACCACCCA 3′) from alloleviviruses (5′ TCCTCCCA 3′)

Making live and letting die: theorizing biopolitics through the Anti-terrorism Act, 2015

In this thesis, I theorize the programs of anti-terrorism and securitization deployed through Bill C-51, the Anti-terrorism Act, 2015, as biopolitical techniques of governance that operate through the right to ‘make live’ and ‘let die’. After situating Bill C-51 in relation to historical developments and contemporary trajectories of Canadian anti-terrorism policy and national security programming, I employ critical discourse analysis to examine the policy text of Bill C-51 and the governmental debates surrounding its introduction. I contend that through the mobilization of radical anti-terrorist measures and security mechanisms, Bill C-51 ostensibly functions to reinforce the security and vitality of the Canadian population, while targeting segments of the population designated as threats to national security for governmental discipline, regulation, and elimination. Consequently, I argue that Bill C-51 constitutes a state of exception within which the normative operation of law is suspended, legal protections are withdrawn, and emergency security measures are enforced.Social Sciences and Humanities Research Council of Canad

Ocean circulation and Tropical Variability in the Coupled Model ECHAM5/MPI-OM

This paper describes the mean ocean circulation and the tropical variability simulated by the Max Planck Institute for Meteorology (MPI-M) coupled atmosphere–ocean general circulation model (AOGCM). Results are presented from a version of the coupled model that served as a prototype for the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) simulations. The model does not require flux adjustment to maintain a stable climate. A control simulation with present-day greenhouse gases is analyzed, and the simulation of key oceanic features, such as sea surface temperatures (SSTs), large-scale circulation, meridional heat and freshwater transports, and sea ice are compared with observations. A parameterization that accounts for the effect of ocean currents on surface wind stress is implemented in the model. The largest impact of this parameterization is in the tropical Pacific, where the mean state is significantly improved: the strength of the trade winds and the associated equatorial upwelling weaken, and there is a reduction of the model’s equatorial cold SST bias by more than 1 K. Equatorial SST variability also becomes more realistic. The strength of the variability is reduced by about 30% in the eastern equatorial Pacific and the extension of SST variability into the warm pool is significantly reduced. The dominant El Niño–Southern Oscillation (ENSO) period shifts from 3 to 4 yr. Without the parameterization an unrealistically strong westward propagation of SST anomalies is simulated. The reasons for the changes in variability are linked to changes in both the mean state and to a reduction in atmospheric sensitivity to SST changes and oceanic sensitivity to wind anomalies