5,607 results match your criteria: "University of Hawai'I[Affiliation]"

Optimizing automated photo identification for population assessments.

Conserv Biol

January 2025

Marine Mammal Research Program, Hawai'i Institute of Marine Biology, University of Hawai'i at Mānoa, Kāne'ohe, Hawai'i, USA.

Several legal acts mandate that management agencies regularly assess biological populations. For species with distinct markings, these assessments can be conducted noninvasively via capture-recapture and photographic identification (photo-ID), which involves processing considerable quantities of photographic data. To ease this burden, agencies increasingly rely on automated identification (ID) algorithms.

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Alkylazolation of Alkenes via Photocatalytic Radical Polar Crossover.

Org Lett

January 2025

Department of Chemistry, University of Hawai'i at Ma̅noa, Honolulu, Hawaii 96822, United States.

We present a photocatalytic method for alkylamination of alkenes, enabling efficient C-C and C-N bond formation to construct aza-heterocycles valuable in drug discovery. Using a radical-polar crossover pathway, electron-deficient alkenes are reduced to electrophilic radicals, which react with electron-rich alkenes to form nucleophilic radicals. Oxidation of these intermediates yields carbocations, which are trapped by aza-heteroarenes to afford alkylaminated products.

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Introduction Debriefing in healthcare simulation is helpful in reinforcing learning objectives, closing performance gaps, and improving future practice and patient care. The Debriefing Assessment for Simulation in Healthcare (DASH) is a validated tool. However, localized rater training for the DASH has not been described.

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Vernonolide A, a Sesquiterpene Lactone with a Unique Carbon Skeleton from .

Org Lett

January 2025

Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawai'i 96720, United States.

A novel sesquiterpene lactone derivative, vernonolide A (), featuring an unprecedented carbon skeleton, along with its plausible biosynthetic precursor, vercinolide I (), and eight known sesquiterpene lactones (-) were isolated and characterized from the whole plants of (L.). The structures of and were elucidated using nuclear magnetic resonance spectroscopic analysis and calculated and experimental electronic circular dichroism spectra.

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Governance of Indigenous data in open earth systems science.

Nat Commun

January 2025

Lands of the O'odham and Yaqui peoples, Native Nations Institute, Udall Center for Studies in Public Policy, University of Arizona, Tucson, AZ, USA.

In the age of big data and open science, what processes are needed to follow open science protocols while upholding Indigenous Peoples' rights? The Earth Data Relations Working Group (EDRWG), convened to address this question and envision a research landscape that acknowledges the legacy of extractive practices and embraces new norms across Earth science institutions and open science research. Using the National Ecological Observatory Network (NEON) as an example, the EDRWG recommends actions, applicable across all phases of the data lifecycle, that recognize the sovereign rights of Indigenous Peoples and support better research across all Earth Sciences.

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Baseline Estimates for Companion Animals Living in Households in Hawai'i: Associated Socio-Demographic, and Select Health Variables, as Measured by a Household Survey.

Hawaii J Health Soc Welf

January 2025

Retired, Research Statistician Hawai'i Department of Health, Adjunct Assistant Professor, University of Hawai'i, Office of Public Health Studies, Honolulu, HI.

Information on companion animals in Hawai'i is lacking. The Hawai'i Department of Health's Hawai'i Health Survey, collected data on adults and households by telephone interview. National estimates of companion animals range from 50-67%.

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The transition to virtual learning formats during the COVID-19 pandemic necessitated substantial curricular adjustments to the University of Hawai'i John A. Burns School of Medicine. This study compares student satisfaction and academic performance between the pre-pandemic (up through March 25, 2020) and pandemic (after March 25, 2020) periods.

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What if an experiment could combine the power of cycloaddition and cross-coupling with the formation of an aromatic molecule in a single collision? Crossed molecular beam experiments augmented with electronic structure and statistical calculations provided compelling evidence on a novel radical route involving 1,3-butadiynyl (HCCCC; X∑) radicals synthesizing (substituted) arylacetylenes in the gas phase upon reactions with 1,3-butadiene (CHCHCHCH; XA) and 2-methyl-1,3-butadiene (isoprene; CHC(CH)CHCH; XA'). This elegant mechanism merges two previously disconnected concepts of cross-coupling and cycloaddition-aromatization in a single collision event via the formation of two new C(sp)-C(sp) bonds and bending the 180° moiety of the linear 1,3-butadiynyl radical out of the ordinary by 60° to 120°. In addition to its importance to fundamental organic chemistry, this unconventional mechanism links two previously separated routes of gas-phase molecular mass growth processes of polyacetylenes and polycyclic aromatic hydrocarbons (PAHs), respectively, in low-temperature environments such as in cold molecular clouds like the Taurus Molecular Cloud (TMC-1) and in hydrocarbon-rich atmospheres of planets and their moons such as Titan, which revises the established understanding of low-temperature molecular mass growth processes in the Universe.

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Atomically precise nanoclusters can be assembled into ordered superlattices with unique electronic, magnetic, optical and catalytic properties. The co-crystallization of nanoclusters with functional organic molecules provides opportunities to access an even wider range of structures and properties, but can be challenging to control synthetically. Here we introduce a supramolecular approach to direct the assembly of atomically precise silver nanoclusters into a series of nanocluster‒organic ionic co-crystals with tunable structures and properties.

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Background: One avenue to improve outcomes among brain tumor patients involves the mitigation of healthcare disparities. Investigating clinical differences among brain tumors across socioeconomic and demographic strata, such can aid in healthcare disparity identification and, by extension, outcome improvement.

Methods: Utilizing a racially diverse population from Hawaii, 323 cases of brain tumors (meningiomas, gliomas, schwannomas, pituitary adenomas, and metastases) were matched by age, sex, and race to 651 controls to investigate the associations between tumor type and various demographic, socioeconomic, and medical comorbidities.

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Purpose: Respondent-driven sampling (RDS) is a sampling method that relies on social networks to recruit hard-to-reach populations, and reduces the bias from non-random selection. This study aimed to assess the efficacy of RDS in collecting health assessment data from underrepresented populations not captured by traditional sampling techniques.

Methods: An RDS study was conducted in Hawai'i between 2017 and 2018 of Native Hawaiians, Chuukese, and Marshallese participants.

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Identifying processes that promote coral reef recovery and resilience is crucial as ocean warming becomes more frequent and severe. Sexual reproduction is essential for the replenishment of coral populations and maintenance of genetic diversity; however, the ability for corals to reproduce may be impaired by marine heatwaves that cause coral bleaching. In 2014 and 2015, the Hawaiian Islands experienced coral bleaching with differential bleaching susceptibility in the species Montipora capitata, a dominant reef-building coral in the region.

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Advancing Natural Killer Cell Therapy: Genetic Engineering Strategies for Enhanced Cancer Immunotherapy.

Ann Lab Med

January 2025

Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea.

Natural killer (NK) cells are pivotal innate immune system components that exhibit spontaneous cytolytic activity against abnormal cells, such as infected and tumor cells. NK cells have shown significant promise in adoptive cell therapy because of their favorable safety profiles and minimal toxicity in clinical settings. Despite their advantages, the therapeutic application of unmodified NK cells faces challenges, including limited in vivo persistence, particularly in the immunosuppressive tumor microenvironment.

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Compared to the general population of Hawai'i, Native Hawaiians and Other Pacific Islanders (NHPI) shoulder a disproportionately high risk for obesity-related cardiometabolic disorders, such as type 2 diabetes and cardiovascular disease. The gut microbiome is an area of rapid research interest for its role in regulating adjacent metabolic pathways, offering novel opportunities to better understand the etiology of these health disparities. Obesity and the gut microbiome are influenced by regional, racial-ethnic, and community-specific factors, limiting the generalizability of current literature for understudied populations.

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The rice leaf folder is an important migratory pest in Asia. Although this pest possesses diverse bacterial communities in its gut, functions of these bacteria in modulating host fitness, including development durations, pupal weight, adult longevity, and fecundity, remain unknown. We isolated gut bacteria from field-collected larvae using a culture-dependent method and identified 15 bacterial isolates.

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Advances in imaging, pharmacological, and procedural technologies have rapidly expanded the care of pulmonary embolism. Earlier, more accurate identification and quantification has enhanced risk stratification across the spectrum of the disease process, with a number of clinical tools available to prognosticate outcomes and guide treatment. Direct oral anticoagulants have enabled a consistent and more convenient long-term therapeutic option, with a greater shift toward outpatient treatment for a select group of low-risk patients.

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AI in Biomedicine-A Forward-Looking Perspective on Health Equity.

Int J Environ Res Public Health

December 2024

Department of Surgery, John A. Burns School of Medicine, University of Hawai'i at Mānoa, Honolulu, HI 96813, USA.

As new artificial intelligence (AI) tools are being developed and as AI continues to revolutionize healthcare, its potential to advance health equity is increasingly recognized. The 2024 Research Centers in Minority Institutions (RCMI) Consortium National Conference session titled "Artificial Intelligence: Safely, Ethically, and Responsibly" brought together experts from diverse institutions to explore AI's role and challenges in advancing health equity. This report summarizes presentations and discussions from the conference focused on AI's potential and its challenges, particularly algorithmic bias, transparency, and the under-representation of minority groups in AI datasets.

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Historical trauma has been established as a determinant of health among all Hawaiians, but limited research exists on how Wāhine (Native Hawaiian women) uniquely experience historical trauma. A phenomenological qualitative study was conducted to primarily understand how historical trauma, trauma response, and the transmission and modes of intergenerational trauma intersect with sexism and patriarchy among contemporary Wāhine, as described in the Historical Trauma Conceptual Model. With partnership and approval of the Waimānalo Pono Research Hui, interviews were conducted with 13 Wāhine from various generations in Hawai'i.

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An Entropy Dynamics Approach to Inferring Fractal-Order Complexity in the Electromagnetics of Solids.

Entropy (Basel)

December 2024

Department of Mechanical Engineering, Florida Center for Advanced Aero Propulsion, Florida A&M University and Florida State University, Tallahassee, FL 32310, USA.

A fractal-order entropy dynamics model is developed to create a modified form of Maxwell's time-dependent electromagnetic equations. The approach uses an information-theoretic method by combining Shannon's entropy with fractional moment constraints in time and space. Optimization of the cost function leads to a time-dependent Bayesian posterior density that is used to homogenize the electromagnetic fields.

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(Walker), a significant migratory pest in many Asian countries, can cause severe damage to wheat crops. Understanding whether wild oat can serve as an alternate host is important for informing predictive models of infestation levels in wheat fields and can improve pest and weed management strategies. We first conducted both choice and no-choice experiments and found that readily laid eggs on both wheat and wild oat, with no significant oviposition preference.

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How does globally accumulated tropical cyclone energy vary in response to a changing climate?

Sci Bull (Beijing)

December 2024

Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China. Electronic address:

How tropical cyclone (TC) activity varies in response to a changing climate is widely debated. The accumulated cyclone energy (ACE) is one of the indicators of TC activity and has attracted considerable attention because of its close relationship with the damages caused by TCs. Previous studies have focused on detecting long-term trends in global ACE; however, the results are inconclusive.

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Article Synopsis
  • - The review aims to summarize the experiences and challenges faced by International Medical Graduates (IMGs) integrating into healthcare systems in English-speaking countries.
  • - It analyzed 20 peer-reviewed articles, revealing common challenges like communication barriers, cultural differences, and biases against IMGs.
  • - The conclusion calls for clinical educators and residency programs to implement focused support initiatives to improve IMG experiences and enhance patient care quality.
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Article Synopsis
  • The study examines the long-term psychological effects of disasters on adolescents, focusing on mental health symptoms, quality of life, and PTSD.
  • The research included 228 adolescents over two years, investigating their disaster experiences, emotional regulation, and self-concept through specific mental health assessments.
  • Findings show that girls are more adversely affected and that those with PTSD show greater improvements over time, highlighting the complexity of recovery and the need for targeted mental health resources.
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Increasing microplastic concentrations have nonlinear impacts on the physiology of reef-building corals.

Sci Total Environ

January 2025

Department of Animal Ecology & Systematics, Justus Liebig University, Giessen, Germany; Hawai'i Institute of Marine Biology, University of Hawai'i at Mānoa, Kāne'ohe, HI, USA.

The pollution of marine environments with plastics, particularly microplastic (MP, i.e., plastic particles <5 mm), is a major threat to marine biota, including corals.

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