Publications by authors named "Patrick Nichols"

Efficient detection and management of non-indigenous species are critical for mitigating their ecological impacts. Environmental DNA (eDNA) techniques have transformed biodiversity monitoring by enabling sensitive and cost-effective surveys. This study compares the efficacy of passive eDNA samplers (PEDS) to conventional active filtration methods for detecting the cryptogenic macroalga within the Papahānaumokuākea Marine National Monument, Hawai'i, USA.

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The analysis of environmental DNA (eDNA) is a powerful tool for rapidly assessing biodiversity across aquatic ecosystems. Its implementation remains limited, however, by the logistical complexity of standard eDNA workflows, which often require specialized equipment and expertise. This protocol presents passive environmental DNA samplers (PEDS) as a simplified, low-cost alternative to conventional active water filtration methods.

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Background: Ustekinumab, approved for the treatment of moderate to severe Crohn disease (CD) and ulcerative colitis (UC), requires a clinic-administered intravenous (IV) induction infusion (loading dose) followed by transition to self-administered, subcutaneous (SC) injection for maintenance every 8 weeks. Many patients need subsequent dose escalations to obtain or maintain effectiveness. As an increasing number of CD and UC therapies require a similar dosing and escalation strategy, research evaluating care coordination requirements and clinical outcomes for patients prescribed ustekinumab can help guide best practices.

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The cryptogenic marine red alga was first observed in 2016 in subtidal habitats at Manawai (Pearl and Hermes Atoll) in the Papahānaumokuākea Marine National Monument (PMNM), Hawai'i. Without molecular or morphological matches to any known species, it was described in 2020 and declared cryptogenic. This alga has substantially increased in benthic cover and has been discovered on two additional atolls in PMNM: Kuaihelani (Midway) and Hōlanikū (Kure).

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Early detection of nuisance species is crucial for managing threatened ecosystems and preventing widespread establishment. Environmental DNA (eDNA) data can increase the sensitivity of biomonitoring programs, often at minimal cost and effort. However, eDNA analyses are prone to errors that can complicate their use in management frameworks.

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Insurer or self-insured employer's plans are increasingly using copay accumulator, copay maximizer, and alternative funding programs (AFPs) to reduce plan spending on high-priced prescriptions. These programs differ in their structure and impact on patient affordability but typically decrease the insurer or self-insured employer's financial responsibility for high-priced drugs and increase the complexity of specialty medication access for patients. The aim of this primer is to describe the structure of copay accumulator, copay maximizer, and AFPs to improve understanding of these cost-shifting strategies and help clinicians and patients navigate medication access and affordability issues to minimize treatment delays or non-initiation.

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When grapes are exposed to wildfire smoke, certain smoke-related volatile phenols (VPs) can be absorbed into the fruit, where they can be then converted into volatile-phenol (VP) glycosides through glycosylation. These volatile-phenol glycosides can be particularly problematic from a winemaking standpoint as they can be hydrolyzed, releasing volatile phenols, which can contribute to smoke-related off-flavors. Current methods for quantitating these volatile-phenol glycosides present several challenges, including the requirement of expensive capital equipment, limited accuracy due to the molecular complexity of the glycosides, and the utilization of harsh reagents.

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Purpose: Patients receiving biologic therapy for inflammatory bowel disease (IBD) require routine laboratory monitoring to ensure the safety and efficacy of therapy. The purpose of this quality improvement project was to evaluate the implementation of a dashboard to prevent treatment gaps by prospectively identifying patients with IBD and outdated laboratory results receiving biologics.

Methods: We performed a pre/post analysis of dashboard implementation to assess the number of patients with overdue laboratory work resulting in treatment gaps.

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Background: Guidelines for cardiopulmonary resuscitation recommend a chest compression rate of at least 100 compressions per minute. Animal and human studies have reported that blood flow is greatest with chest compression rates near 120/min, but few have reported rates used during out-of-hospital (OOH) cardiopulmonary resuscitation or the relationship between rate and outcome. The purpose of this study was to describe chest compression rates used by emergency medical services providers to resuscitate patients with OOH cardiac arrest and to determine the relationship between chest compression rate and outcome.

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Relativistic spin-orbit density functional theory (DFT) methods have been implemented in the molecular Gaussian DFT and pseudopotential planewave DFT modules of the NWChem electronic-structure program. The Gaussian basis set implementation is based upon the zeroth-order regular approximation (ZORA) while the planewave implementation uses spin-orbit pseudopotentials that are directly generated from the atomic Dirac-Kohn-Sham wave functions or atomic ZORA-Kohn-Sham wave functions. Compared to solving the full Dirac equation these methods are computationally efficient but robust enough for a realistic description of relativistic effects such as spin-orbit splitting, molecular orbital hybridization, and core effects.

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First principles molecular dynamics simulations of the hydration shells surrounding UO(2)(2+) ions are reported for temperatures near 300 K. Most of the simulations were done with 64 solvating water molecules (22 ps). Simulations with 122 water molecules (9 ps) were also carried out.

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A new, computationally efficient approximation to calculating matrix elements between vibrational-electronic states that does not assume stationary nuclei is introduced. The approach emphasizes the importance of the conservation of nuclear momenta. The calculated quantities can be used wherever equivalent quantities from standard Franck-Condon treatments can be used.

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This position paper concerns improving health care in the United States. Unlike previous highly focused policy papers by the American College of Physicians, this article takes a comprehensive approach to improving access, quality, and efficiency of care. The first part describes health care in the United States.

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