Winter Diet and Hunting Success of Canada Lynx in Colorado

Information regarding the diet of Canada lynx (Lynx canadensis) at the southernmost extent of its range is critical for managing the species under current and predicted climate conditions. Therefore, from 1999–2009, we investigated winter diet and hunting strategies of Canada lynx in Colorado, USA by tracking individuals in the snow to identify sites where lynx encountered and killed prey. Similar to other parts of lynx range, snowshoe hares (Lepus americanus) were the primary winter food in Colorado, especially when considering total biomass consumed. Red squirrels (Tamiasciurus hudsonicus) comprised the bulk of the remaining food items and were a substantial occurrence during several years, which is consistent with previous hypotheses regarding the diet of lynx in southerly populations. Lynx successfully captured snowshoe hares on 31% of attempts and red squirrels on 47% of attempts, similar to lynx in other regions. In contrast to other populations, the majority of chases of both prey species were initiated while actively hunting rather than by ambush and this behavior did not change through time. We found evidence for snowshoe hare refugia during winter; hunting success for hares peaked at sites with approximately 3,000 stems/ha, but was lower in more dense vegetation where hare densities were greater. Given this finding and the apparent importance of red squirrels as alternate prey, we suggest that management for lynx in the southern Rocky Mountains, USA, focus on maintenance of mature, uneven-aged Engelmann spruce (Picea engelmannii)-subalpine fir (Abies lasiocarpa) stands. Such stands naturally provide patches of dense and open habitats juxtaposed closely together that should simultaneously facilitate high hare densities (and refuge from predation) and accessibility to hares by lynx. Mature trees in such stands also provide abundant cone crops to sustain populations of red squirrels for use as alternate prey

Magnetic nanoparticles as efficient bulk pinning centers in type-II superconductors

Enhancement of flux pinning by magnetic nanoparticles embedded into the bulk of type-2 superconductor is studied both theoretically and experimentally. Magnetic part of the pinning force associated with the interaction between a spherical magnetic inclusion and an Abrikosov vortex was calculated in the London approximation. Calculations are supported by the experimental results obtained on sonochemically modified MgB2 superconductor with embedded magnetic Fe2O3 nanoparticles and compared to MgB2 with nonmagnetic Mo2O5 pinning centers of similar concentration and particle size distribution. It is shown that ferromagnetic nanoparticles result in a considerable enhancement of vortex pinning in large-kappa type-2 superconductors.Comment: PDF, 14 page

Over- And Under-Funding: Crowdfunding Concerns of the Parties Involved

Financial collaboration for new business ventures or the expansion of existing businesses utilizing the internet and social media is expanding. One area of growth is in the area of crowdfunding. Crowdfunding or crowdsourcing is known as collaborative funding using the internet to attract many investors to a new business venture

HIV, HBS and HCV in Dump Site Workers of Erbil Governorate

This research targeted eighty-nine males working in Kany Qrzhala, dumpsite. Age and gender comparable apparently healthy subjects were selected as healthy controls, and both of the groups were obliged to fill the study's questionnaire. Further, venous blood samples were collected from each individual for serum collection. The accumulated sera reserved for the sero-prevalence for antibodies tests of Human Immunodeficiency Virus, Hepatitis B Surface Antigen and Hepatitis C Virus, (HIV), (HBS), (HCV) respectively. The automated immunoassay analyzer Cobas E411 facilitated the conducting of the mentioned tests. The serum concentration of HIV and HBS antibodies of dumpsite workers revealed a significant increase when compared to the healthy group, while the HCV antibody serum concentration presented no significant alteration when comparing dumpsite workers to the healthy controls. The antibodies presence in the sera that belonged to workers is an indicator of exposure to the viruses due to unsanitary health conditions. This may pose a public health risk to the workers themselves, in addition to the people they are in contact with, including their families

Anti-Toxoplasma, Anti-rubella, and Anti-cytomegalovirus Antibodies in Dumpsite Workers of Erbil Governorate

The present study aimed to detect the presence of anti-Toxoplasma, anti-rubella, and anti-cytomegalovirus (CMV) antibodies in the sera of dumpsite workers of Erbil Governorate. Eighty nine male dumpsite (Kany Qrzhala, Erbil Governorate) workers were included in this study. Serum was obtained for the detection of anti-Toxoplasma, anti-rubella, and anti-CMV antibodies using an automated cobas e411 immunoassay analyzer. No anti-Toxoplasma IgM antibodies were detected in any of the workers’ sera, while (25.84%) showed a positive result for anti-Toxoplasma IgG antibodies. All workers’ sera had no anti-rubella IgM and IgG2 antibodies, while (62.92%) of them revealed the presence of IgG1 in their sera. Anti-CMV IgM was found in (2.25%) of the sera, while (13.50%) of the sera revealed the presence of anti-CMV IgG antibodies

The Disproportionate Costs of Forming LLCs VS. Corporations: The Impact on Small Firm Liability Protection

The LLC is increasingly the ownership form of choice by nascent small business owners as it has some advantages over corporations and sole proprietorships and partnerships. Despite its advantages, some states have higher filing fees for LLCs than for corporations. Some states have significantly higher filing fees than other states for both LLCs and corporations. As a result, emerging companies are often discouraged from seeking liability protection, or they seek a corporation, reducing the flexibility that could be provided with an LLC. Our research shows that the disproportionate cost of starting an LLC is related to the percentage of LLCs formed in comparison with corporations. This can have significant implications to small business owners since they may be choosing ownership forms that are not advantageous to their particular venture strictly based on initial filing costs. These state policy decisions may lead to long-term tax revenue loss within states with higher filing fees

The impact of social media influencers on pregnancy, birth, and early parenting experiences : A systematic review

Background Pregnant and new parents are increasingly engaging with social media. The impacts of engaging with social media ‘influencers’ and ‘bloggers’ during a time of heightened vulnerability to influence, in particular, merits exploration. Aim To systematically review the literature to identify what is known about how following social media ‘influencers’ and ‘bloggers’ impacts pregnant and new parents’ experiences and decision-making. Methods A search of CINAHL, World of Science, Medline, EMBASE and Google Scholar databases was undertaken in January 2023 to identify the literature focusing on the impacts of engaging with influencers or bloggers as pregnant or new parents. The reference lists of the included papers were hand-searched. Data were extracted from each paper, tabulated, and thematically analysed. The review was reported using the 2020 Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Findings Seventeen papers met the inclusion criteria and were included in the final synthesis. Thematic analysis revealed four overarching themes, which were ‘sharing information’, ‘support’, ‘identity’, and ‘monetisation’. Discussion Social media influencers provide a network of peers amongst whom discussions, supportive behaviours, and information sharing take place. However, concern arises around the potential for combative interactions, the risk for transmission of misinformation, and the potential impacts of following influencers who are also qualified health professionals. Conclusion Existing research suggests that engaging with social media influencers can be both beneficial and harmful for pregnant and new parents. At the current time, it is unclear how exposure to the benefits or harm impacts personal experiences and decision-making

Social media influencers' impact during pregnancy and parenting : A qualitative descriptive study

Pregnant people and parents engage with social media networking sites seeking support and information that is shared in a relatable way. Engaging with social media influencers (SMIs) and their followers, however, may have both affirming and harmful effects. SMIs can facilitate information-sharing, discussion, and supportive behaviors, but engaging with SMIs can lead to negative experiences and exposure to misinformation. To date, little is known about the impacts of following influencers during pregnancy and early parenthood. The aim of this study was to explore how engaging with SMIs impacts pregnant people and parents of children aged 5 or under in Australia. A qualitative descriptive approach was taken. Qualitative data from 85 anonymously completed online written surveys were thematically analyzed using Braun & Clarke's six-step process. Five overarching themes and two subthemes were identified. The first theme, “Comparisons of self,” held two subthemes: “Unfavorable comparisons of self to SMIs” and “Favorable comparisons of self to SMIs.” Additional themes were “A virtual community of inspiration and togetherness,” “Sharing of information, opinions & experiences,” “Gatekeeping self-efficacy,” and “Credibility.” The findings of the study indicated that discordance between influencer-mediated expectations of parenthood and a person's actual experience may affect well-being and perceptions of parental self-efficacy. Information sought from influencers may substitute for face-to-face education by clinicians. Health professionals who are also influencers may possess the ability to provide evidence-based information. This content, however, is not without risk for bias or incompleteness

Evidence for Quasar Activity Triggered by Galaxy Mergers in HST Observations of Dust-reddened Quasars

We present Hubble ACS images of thirteen dust reddened Type-1 quasars selected from the FIRST/2MASS Red Quasar Survey. These quasars have high intrinsic luminosities after correction for dust obscuration (-23.5 > M_B > -26.2 from K-magnitude). The images show strong evidence of recent or ongoing interaction in eleven of the thirteen cases, even before the quasar nucleus is subtracted. None of the host galaxies are well fit by a simple elliptical profile. The fraction of quasars showing interaction is significantly higher than the 30% seen in samples of host galaxies of normal, unobscured quasars. There is a weak correlation between the amount of dust reddening and the magnitude of interaction in the host galaxy, measured using the Gini coefficient and the Concentration index. Although few host galaxy studies of normal quasars are matched to ours in intrinsic quasar luminosity, no evidence has been found for a strong dependence of merger activity on host luminosity in samples of the host galaxies of normal quasars. We thus believe that the high merger fraction in our sample is related to their obscured nature, with a significant amount of reddening occurring in the host galaxy. The red quasar phenomenon seems to have an evolutionary explanation, with the young quasar spending the early part of its lifetime enshrouded in an interacting galaxy. This might be further indication of a link between AGN and starburst galaxies.Comment: 18 pages, 6 low resolution figures, accepted for publication in Ap