18 research outputs found
Dark sectors 2016 Workshop: community report
This report, based on the Dark Sectors workshop at SLAC in April 2016,
summarizes the scientific importance of searches for dark sector dark matter
and forces at masses beneath the weak-scale, the status of this broad
international field, the important milestones motivating future exploration,
and promising experimental opportunities to reach these milestones over the
next 5-10 years
US Cosmic Visions: New Ideas in Dark Matter 2017: Community Report
This white paper summarizes the workshop "U.S. Cosmic Visions: New Ideas in
Dark Matter" held at University of Maryland on March 23-25, 2017.Comment: 102 pages + reference
Probing the Inverse Trans Influence in Americium and Lanthanide Tribromide Tris(tricyclohexylphosphine oxide)
The synthesis, characterization, and theoretical
analysis of meridional americium tribromide tris(tricyclohexylphosphine oxide),
mer-AmBr3(OPcy3)3 has been achieved and
is compared with its early lanthanide (La to Nd) analogs. The data show that homo trans ligands
show significantly shorter bonds than the cis or hetero trans ligands. This is
particularly pronounced in the americium compound. DFT along with
multiconfigurational CASSCF calculations show that the contraction of the bonds
relates qualitatively with overall covalency, i.e. americium shows the most
covalent interactions compared to lanthanides. . However, the involvement of
the 5p and 6p shells in bonding follows a different order, namely
cerium > neodymium ~ americium. This study provides further insight into the
mechanisms by which ITI operates in low-valent f-block complexes
The Impact of a Recent Concussion on College-Aged Individuals with Co-Occurring Anxiety: A Qualitative Investigation
College-aged individuals with anxiety are vulnerable to developing persistent concussion symptoms, yet evidence-based treatments for this population are limited. Understanding these individuals’ perspectives is critical for developing effective interventions. We conducted qualitative interviews with 17 college-aged individuals (18–24 years old) with a recent (≤10 weeks) concussion and at least mild anxiety (≥5 on the GAD-7 questionnaire) to understand the life impact of their concussion. We identified 5 themes: (1) disruption to daily activities (e.g., reduced participation in hobbies and physical activity); (2) disruption to relationships (e.g., reduced social engagement, feeling dismissed by others, stigma, and interpersonal friction); (3) disruptions in school/work (e.g., challenges participating due to light sensitivity, cognitive or sleep disturbance, and related emotional distress); (4) changes in view of the self (e.g., feeling “unlike oneself”, duller, or more irritable), and (5) finding “silver linings” after the injury (e.g., increased motivation). Concussions impact the lives of college-aged individuals with co-occurring anxiety in a broad range of domains, many of which remain largely neglected in standard concussion clinical assessment and treatment. Assessing and addressing these issues has the potential to limit the negative impact of concussion, promote recovery, and potentially help prevent persistent concussion symptoms in this at-risk population
Measurements of immune responses for establishing correlates of vaccine protection against HIV
Well-defined correlates of protective immunity are an essential component of rational vaccine development. Despite years of basic science and three HIV vaccine efficacy trials, correlates of immunological protection from HIV infection remain undefined. In December 2010, a meeting of scientists engaged in basic and translational work toward developing HIV-1 vaccines was convened. The goal of this meeting was to discuss current opportunities and optimal approaches for defining correlates of protection, both for ongoing and future HIV-1 vaccine candidates; specific efforts were made to engage young scientists. We discuss here the highlights from the meeting regarding the progress made and the way forward for a protective HIV-1 vaccine