bluuebunny/crossref_metadata_2025 huggingface dataset:
Wavelength-stabilized figure-of-9 thulium-doped all-fiber laser emitting 560 fs pulses
Authors: Bartnick Moritz , Bharathan Gayathri , Goebel Thorsten A , Krämer Ria G , Nolte Stefan , Brés Camille-Sophie
Published: December 2023

We demonstrate a figure-of-9 all-fiber thulium-doped laser (TDFL) that generates 560 fs long pulses at 1948 nm wavelength. In order to achieve self-starting passive mode-locking, we utilize an in-fiber Faraday rotator to induce a nonreciprocal phase shift. To the best of our knowledge, this is the first all-fiber TDFL that combines an artificial saturable absorber (SA) with a chirped fiber Bragg grating (CFBG) as a wavelength-selective reflector. This cavity design is an excellent candidate to pump nonlinear processes such as supercontinuum and frequency comb generation since it does not require any SA material that degrades over time for mode-locking and could be made wavelength-tuneable via the CFBG.
Accuracy of numerical relativity waveforms with respect to space-based gravitational wave detectors
Authors: Wang Zun , Zhao Junjie , Cao Zhoujian
Published: December 2023

As with the laser interferometer gravitational-wave observatory (LIGO), the matched filtering technique will be critical to the data analysis of gravitational wave detection by space-based detectors, including LISA, Taiji and Tianqin. Waveform templates are the basis for such matched filtering techniques. To construct ready-to-use waveform templates, numerical relativity waveforms are a starting point. Therefore, the accuracy issue of numerical relativity waveforms is critically important. There are many investigations regarding this issue with respect to LIGO. But unfortunately there are few results on this issue with respect to space-based detectors. The current paper investigates this problem. Our results indicate that the existing numerical relativity waveforms are as accurate as 99% with respect to space-based detectors, including LISA, Taiji and Tianqin. Such an accuracy level is comparable to that with respect to LIGO.
Plasma potential measurements using an emissive probe made of oxide cathode
Authors: Li 李 Jian-Quan 建泉 , Ma 马 Hai-Jie 海杰 , Lu 陆 Wen-Qi 文琪
Published: December 2023

A novel emissive probe consisting of an oxide cathode coating is developed to achieve a low operating temperature and long service life. The properties of the novel emissive probe are investigated in detail, in comparison with a traditional tungsten emissive probe, including the operating temperature, the electron emission capability and the plasma potential measurement. Studies of the operating temperature and electron emission capability show that the tungsten emissive probe usually works at a temperature of 1800 K–2200 K while the oxide cathode emissive probe can function at about 1200 K–1400 K. In addition, plasma potential measurements using the oxide cathode emissive probe with different techniques have been accomplished in microwave electron cyclotron resonance plasmas with different discharge powers. It is found that a reliable plasma potential can be obtained using the improved inflection point method and the hot probe with zero emission limit method, while the floating point method is invalid for the oxide cathode emissive probe.
Independent Pitch Controller based on Fuzzy Adaptive Tuning PI for Load Mitigation of Large Land Wind Turbine
Authors: Li Shengshan , Du Ming , Li Yanggui , He Jun , Ma Fuliang , Chen Qingyun
Published: December 2023

With the development of wind power generation units towards the mega-scale, the blade root and tower have large load and vibration problems during the operation of wind turbines. In order to extend the operational life of wind turbines, a PI independent pitch control (IPC) strategy with fuzzy adaptive tuning (FAT) is introduced based on the existing wind turbine model and control strategy to achieve optimal control of wind turbine loads. Simulations are carried out by the FAST software of the US Renewable Energy Laboratory to compare the independent pitch and the cooperative pitch. The results show that IPC reduces the load on the blade roots and improves the quality of the electrical energy.
Optimal Operation Strategy of Community Integrated Energy System Based on a Two-level Game
Authors: Wang Qinglin , Niu Huanna
Published: December 2023

With the gradual transformation of the integrated energy system to intelligence and decentralization, users with distributed generation gradually replace traditional users. To realize the rationality of multi-agent power transactions in a community-integrated energy system and improve the income of each subject in the system, this paper presents the optimal operation strategy of a community-integrated energy system based on the two-level game. The first layer is a cooperative game between energy communities, which can promote the consumption of new energy in communities. The second layer is a master-slave game between operators and communities, which can promote effective interaction between the upper and lower levels. By using the Karush-Kuhn-Tucker condition, the two-layer model is transformed into a single-layer model and uses McCormick to relax the model. The example verifies that the trading strategy proposed in this paper can effectively improve the benefits of each energy community.
A mathematical analytical modeling method for rotor eccentricity fault of large VSPSU
Authors: Qiao Jian , Lu Qinghui , He Rufei , Ma Yiming , Yin Xianggen , Peng Yumin , Wang Wenhui , Zhang Hao
Published: December 2023

Aiming at the rotor eccentric fault modeling problem of large VSPSU (VSPSU), a mathematical analytical modeling method based on air gap magnetic field analysis is proposed. This method uses Fourier series decomposition to represent the air gap permeability of static and dynamic eccentricity faults. Then, taking a single coil as a unit, the eccentric self-inductance coefficients between each branch of the windings are derived. Furthermore, the mathematical analytical modeling of the eccentric fault is completed by combining the voltage and flux formulas of each winding branch. The model can reliably reflect the typical fault characteristics of large VSPSUs with eccentric faults, which can provide an analysis basis for subsequent relay protection research.
A technique for modeling and optimizing the design of wave energy conversion devices
Authors: Xia Chunqiu , Wang Tiancheng , Xu Duotian
Published: December 2023

With the continuous development of society and the economy, energy shortages have become increasingly prominent. As an important marine renewable energy source, wave energy holds significant theoretical significance due to its widespread distribution and vast storage potential. In this paper, we employ differential equation theory, numerical optimization methods, and optimization techniques to model and design algorithms for investigating the energy conversion mechanisms of wave energy devices. Due to the complex situation, we decided to simplify that into two scenarios. As to the first scenario, the essence of energy output in wave energy devices lies in the relative velocity between the floater and the oscillator. Firstly, the product of the damping force and the instantaneous relative velocity is integrated over time and divided by the period to obtain the average output power. Maximizing the average output power, with the damping coefficient as the decision variable, establishes a nonlinear optimization model. Secondly, a stepwise optimization approach is applied to control the damping coefficient, resulting in optimal damping coefficients of 33600, . Finally, a genetic algorithm is employed to validate the results as to the next scenario. After adding rotational dampers and torsion springs to the wave energy device, the relative velocity and relative angular velocity between the floater and the oscillator jointly contribute to energy output. The objective is to maximize the sum of the average output power of linear dampers and rotational dampers. The decision variables are the linear damping coefficient and the rotational damping coefficient. A nonlinear optimization model is established. A stepwise optimization approach is applied to optimize both types of coefficients, and the results are validated using a genetic algorithm. The optimal solution is found to have a linear damping coefficient of 60135.7781 N·s/m and a rotational damping coefficient of 4244.90358 N·s·m for the rotational dampers.
An Improved Method of Permanent-magnet Flux Observer for Interior Permanent Magnet Synchronous Motor Based on Adaptive Theory
Authors: Qiu Xiaoying , Sui Yi , Zhang Yaozhong , Zheng Ping
Published: December 2023

Permanent magnet synchronous motor is often used as drive motors for electric vehicles. It is prone to demagnetization failure, and the change of permanent magnet flux link is an important basis for diagnosing demagnetization failure of the motor. First, the study establishes a permanent magnet flux adaptive observer and ensures its stability. Then the sensitivity analysis of the main parameters in the observer is carried out. For the parameter with high sensitivity and a large range of variation during motor operation, the expression of flux observation error caused by this parameter change is derived, and the gain matrix in the observation model is optimized. Through simulation verification, the observer can be used for the demagnetization fault diagnosis of the motor.
A Dynamic Load Increasing Method for 220 kV Overhead Transmission Lines and Application
Authors: Yue Yishi , Sun Zezhong , Wang Feng , Zou Yanhui , Tan Ben , Wang Cheng , Liao Zhenyu , Zeng Peng , Jiang Peng , Chen Jianqiang
Published: December 2023

With the continuous development of China’s economy, the demand for electricity in society is increasing year by year, and it is necessary to continuously strengthen the construction of transmission capacity. This article aims to develop a terminal monitoring device that can monitor the status of transmission lines and the environment, analyze the monitoring data of overhead line status and micrometeorological data, and, based on the prediction model of the current carrying capacity of transmission lines, fully tap the power supply potential of transmission lines, which is of great significance for improving the transmission capacity of transmission channels.
Jump effect of an eccentric cylinder rolling on an inclined plane
Authors: Aldo Arroyo E , Aparicio Alcalde M
Published: December 2023

This work addresses the intriguing phenomenon of the jump effect exhibited by an eccentric cylinder rolling on an inclined plane. Our main objective is to determine the region of the parameter space where the cylinder can undergo a jump after pure rolling motion. In previous works, it was assumed that slipping always precedes a jump, leading to the belief that slip is necessary. In contrast, our study challenges this prevailing notion by demonstrating the existence of situations where a jump can occur after pure rolling motion. We present a detailed theoretical description of the jump effect, investigating the dependence of the jump behavior on the initial conditions, the forces involved, and the parameter values. Through rigorous analysis, we determine the restricted region in the parameter space that allows for jumps to occur without slipping. Our findings contribute to the ongoing debate surrounding the jump effect in eccentric cylinder dynamics.
Acid Mine Drainage Management Plan and Utilization of Fly Ash as Neutralizing Agent (A Case Study of Post-Mining Pits in Palaran, East Kalimantan)
Authors: Rahayu Lestari Sri , Maming  , Diansari Pipi
Published: December 2023

With high levels of domestic production, consumption, and coal exports in East Kalimantan, the outcome will be directly proportionate. Disruption of abiotic, biotic, and cultural factors, such as the environmental impact on Kopi Palaran Street, where there are four abandoned post-mining pits surrounded by residential areas and filled with acid mine drainage. A new issue resulting from the effects of post-mining activities is residents using acid mine drainage from post-mining pits without treatment. The acidity level of the acid mine drainage that the people of Kopi Palaran Street used for daily sanitary reasons ranged from pH 2.8 to pH 3.3 and included relatively low-level Fe and Mn metal. According to the results of laboratory tests on the acid mine neutralisation process, adding 25 g of fly ash to 1000 mL of acid mine drainage can raise the pH of the acid mine water to 8.7 due to the process of alkaline minerals of the fly ash, such as CaO, dissolving acidic minerals. It can also increase the Fe metal content to 13.1 mg/L due to the precipitation of ferric hydroxide, while lowering the Mn metal content to 0.38 mg/L.
Analysis and Control of Land Use Deviations in the City of Parepare
Authors: Coutrier Cliff Joshua Martino , Munir Ahmad , Kurniaty
Published: December 2023

Population and economic growth in the city of Parepare have increased, which has a big impact on land conversion. The City of Parepare Government has published Regional Regulation Number 1 of 2021 regarding the Regional Spatial Plan (RSP) of the City of Parepare 2021–2041 in order to carry out spatial planning. Existing land cannot be used in accordance with RSP regulations after a change in land use. This study aims to find deviations from existing land use in 2022 against the RSP and how to control land use irregularities in Parepare City. The analysis used in this study utilizes a Geographic Information System (GIS) to obtain a map of existing land use in 2022 and an overlay analysis to find land use deviations, and interviews with officials related to land use control in Parepare City. The results of the analysis show that the land use that is following the function of the area in the spatial pattern of the RSP is 6280.23 ha or 69.57% and the land use that deviates from the function of the area in the spatial pattern of the RSP is 2753.28 ha or 30.48%. The issue with its implementation is that many people have exploited or built on the land despite not having the necessary permissions. In an effort to regulate land usage, socialization, monitoring, and the implementation of sanctions have been used; yet, in reality, some people continue to utilize property outside of the RSP.
Recruitment of PI4KIIIβ to the Golgi by ACBD3 is dependent on an upstream pathway of a SNARE complex and golgins
Authors: Stalder Danièle , Yakunin Igor , Pereira Conceição , Eden Jessica , Gershlick David C.
Published: December 2023

ACBD3 is a protein localised to the Golgi apparatus and recruits other proteins, such as PI4KIIIβ, to the Golgi. However, the mechanism through which ACBD3 itself is recruited to the Golgi is poorly understood. This study demonstrates there are two mechanisms for ACBD3 recruitment to the Golgi. First, we identified that an MWT374-376 motif in the unique region upstream of the GOLD domain in ACBD3 is essential for Golgi localization. Second, we use unbiased proteomics to demonstrate that ACBD3 interacts with SCFD1, a Sec1/Munc-18 (SM) protein, and a SNARE protein, SEC22B. CRISPR-KO of SCFD1 causes ACBD3 to become cytosolic. We also found that ACBD3 is redundantly recruited to the Golgi apparatus by two golgins: golgin-45 and giantin, which bind to ACBD3 through interaction with the MWT374-376 motif. Taken together, our results suggest that ACBD3 is recruited to the Golgi in a two-step sequential process, with the SCFD1-mediated interaction occurring upstream of the interaction with the golgins.
Chromosome-level genome assembly and demographic history of Euryodendron excelsum in monotypic genus endemic to China
Authors: Wang Zheng-Feng , Fu Lin , Yu En-Ping , Zhu Wei-Guang , Zeng Song-Jun , Cao Hong-Lin
Published: December 2023

Euryodendron excelsum is in a monotypic genus Euryodendron, endemic to China. It has intermediate morphisms in the Pentaphylacaceae or Theaceae families, which make it distinct. Due to anthropogenic disturbance, E. excelsum is currently found in very restricted and fragmented areas with extremely small populations. Although much research and effort has been applied towards its conservation, its long-term survival mechanisms and evolutionary history remain elusive, especially from a genomic aspect. Therefore, using a combination of long/short whole genome sequencing, RNA sequencing reads, and Hi-C data, we assembled and annotated a high-quality genome for E. excelsum. The genome assembly of E. excelsum comprised 1,059,895,887 bp with 99.66% anchored into 23 pseudo-chromosomes and a 99.0% BUSCO completeness. Comparative genomic analysis revealed the expansion of terpenoid and flavonoid secondary metabolite genes, and displayed a tandem and/or proximal duplication framework of these genes. E. excelsum also displayed genes associated with growth, development, and defence adaptation from whole genome duplication. Demographic analysis indicated that its fluctuations in population size and its recent population decline were related to cold climate changes. The E. excelsum genome assembly provides a highly valuable resource for evolutionary and ecological research in the future, aiding its conservation, management, and restoration.
White spot lesions after fixed appliance treatment—Can we expect spontaneous long-term (≥15 years) improvement?
Authors: Bock Niko Christian , von Bremen Julia , Klaus Katharina , Schulz-Weidner Nelly , Ganss Carolina , Ruf Sabine
Published: December 2023

Objective

To investigate the extent to which post-orthodontic white spot lesions (WSLs) change in appearance over a period of ≥15 years and whether an association with caries data exists.

Subjects and Methods

Seventy-two patients treated with a Herbst-Multibracket appliance at age 14.0 ± 2.7 years for 20.1 ± 5.1 months who attended a recall 18.3 ± 2.9 years post-treatment. Post-treatment (T1) intraoral photographs were assessed by a panel of five dentists using a modified version of the WSL-Index by Gorelick. For affected incisors, photographs from before treatment (T0) and recall (T3) were evaluated. In addition, the WSL-Change Index by Pancherz and Muehlich was assessed for all adequately visible incisors considering T1, T2 (if available), and T3. Radiographic (T0, T1, and T2—if available) and clinical (T3) MFT data were used.

Results

37.5% of the patients exhibited WSLs on ≥ 1 incisor at T1; in total, 81 incisors (14.9%) were affected. At T3, 48% of the WSLs had improved. The modified WSL-Index decreased from 1.2 ± 0.4 to 0.8 ± 0.6 (P < .001), with a score 0 in 28% of the previously affected incisors. When comparing T2 vs. T3, additional improvement after T2 occurred in 11% of the teeth. While no difference existed at T0, the MFT values at T1, T2, and T3 were higher (P ≤ .05) in patients with WSLs at T1 than in those without.

Limitations

The homogeneity of the subjects was limited and no patient-reported outcome was assessed.

Conclusions

Long-term, post-orthodontic WSLs showed spontaneous full recovery in 28% and improvement in 48% of the teeth. Patients affected with WSLs exhibited higher post-treatment MFT values.
Digest: Islands promote population differentiation in dispersive swallows
Authors: Estandía Andrea , Merino Recalde Nilo
Published: December 2023

How can highly dispersive species give rise to genetically distinct populations? This seemingly paradoxical pattern is common among insular birds, but not in those with continental distributions. Broyles and Myers sequence the genomes of almost 150 individuals from the island-dwelling Pacific swallow (Hirundo tahitica) and its continental counterpart, the welcome swallow (H. neoxena). They find strong population structure only among island populations and attribute this to a behavioral reduction in dispersal propensity following island colonization. However, wing shape remains consistent across populations, suggesting it might not accurately reflect dispersal propensity in this group. This study illustrates the interplay between dispersal, isolation, and divergence, offering insights into how geographic factors affect speciation and population differentiation on islands.
FIDELITY AND UTILIZATION OF THE ADULT DAY SERVICES (ADS) PLUS PROGRAM
Authors: Marx Katherine , Gitlin Laura , Roth David , Gaugler Joseph
Published: December 2023

The purpose of this study is to examine intervention processes including session completion and content of the ADS Plus program. Interventionists completed an investigator-developed delivery assessment form following completion of each ADS Plus session with participating caregivers. Additionally, information on care challenges addressed and strategies offered in the form of an “ADS Plus prescription were documented. A total of 102 caregivers took part in ADS Plus. There were 954 sessions conducted, an average of 9.4 sessions per caregiver (Range 0-22). The majority of sessions were completed face-to-face (56.8%), or by telephone (40.7%). The average time spent preparing for each session by staff was 15.5 minutes (range 0 -65). Top care challenges selected by caregivers to address in ADS were: (1) Taking care of self (n=34 caregivers), (2) Meaningful activities for the person living with dementia (n=17), and (3) Agitated behaviors (n=13). Most sessions included validation and support of caregivers (91.8%) and information on caregiver self-care (85.5%). Education (49.0%) and skill enhancement for challenge areas (50.1%) were provided in about half of the sessions. Only about a quarter of sessions, (23.9%) included provision of referrals and linkages. At follow-up caregivers reported that the care challenges they sought to address in ADS Plus had gotten better (54.4%) or was eliminated (26.3%). Caregivers of persons living with dementia who attend an ADS can be aided by the addition of the ADS Plus program to address targeted caregiving needs.
THE CANNABIS AND OLDER PERSONS STUDY: WHAT WE HAVE LEARNED
Authors: Kaskie Brian
Published: December 2023

The Cannabis and Older Persons Study has examined the increasing use of cannabis among Americans over 60 years old since 2016 reflecting a variety of disciplinary perspectives and methodological approaches. The project team has published a dozen peer reviewed manuscripts and has secured competitive funding swards in California, Colorado, Illinois and Iowa. In this symposium, results from multiple COPS surveys collected from older adults are reviewed with three goals in mind. The first is to demonstrate how older cannabis users are not comparable to younger cannabis users in terms of motives and self-reported outcomes of use. The second is to distinguish therapeutic from recreational cannabis use among older persons by examining survey answers provided by persons with arthritis, cancer, caregivers of persons with Alzheimer’s disease, multiple sclerosis and terminal illnesses. The third goal is to differentiate life-time from naïve cannabis users and consider how cannabis may serve as an opioid avoidance or harm reduction strategy. Discussion considers the critical role policy makers, program administrators and clinicians assume in facilitating or hindering cannabis use, and directions for future research.
FAITH IN ACTION BRAIN HEALTH PROGRAM: ADDRESSING BRAIN HEALTH EQUITY GAPS IN THE BLACK COMMUNITY
Authors: Epps Fayron , Chester Mia , Gore Janelle , Brewster Glenna , Sainz Mayra , Frazier Robbin , Monroe Stephanie , Biggar Virginia
Published: December 2023

Black populations are disproportionately impacted by dementia, being twice as likely to be diagnosed with dementia as White people. To help address brain health equity gaps across the country, a partnership between Alter and UsAgainstAlzheimer’s BrainGuide was established to launch, Faith in Action, a campaign and brain health education program to provide culturally appropriate brain health resources to Black faith communities. The campaign makes brain health education free and accessible by integrating the latest information about brain health into a toolkit delivered to faith communities. This presentation will describe the campaign and discuss why faith leaders say brain health is important to Black faith communities. This campaign included the distribution of: a) Fact sheets b) Culturally tailored messaging; c) Church fans, bookmarks, and buttons; and d) A guidebook to integrating brain health messaging. In relation to the importance of brain health, the following 5 themes emerged from faith leaders (N = 33) implementing the Alter program: a) Desire to disrupt statistics; b) Urgency and being proactive; c) Offer valuable intergenerational education programs; d) Establish a level of wellness in underserved communities; and e) Protect older adults. The Faith in Action campaign empowers Black faith communities to foster conversations and educate their community members about brain health. This campaign assists in promoting brain health equity by recognizing the significance of partnering with Black churches, a cornerstone of the Black community. Such partnerships are crucial to increasing equitable access to resources and supportive services, and eradicating dementia-related disparities in the Black community.
SEX AND ETHNICITY-RELATED DISPARITIES IN ALZHEIMER’S DISEASE AMONG RESIDENTS OF SKILLED NURSING FACILITIES
Authors: Yashkin Arseniy , Akushevich Igor
Published: December 2023

Residents of nursing homes represent a special subset of the population characterized by increased vulnerability and higher rates of Alzheimer’s Disease (AD). Nursing home ethnic composition does not reflect that of the general population with minorities more likely to be concentrated in facilities with serious deficiencies, and to have lower health status at time of admission. Significant ethnic disparities in quality-of-care aspects such as hospitalizations, preventive care, and the management of chronic conditions exist and these patterns extend to sex and ethnicity-specific subgroups of individuals with AD. However, there is a paucity of knowledge on the actual size of sex and ethnicity-related disparities in AD within this high-risk population. In this study we used 100% of all nursing home resident evaluations (N=23,080,518; Male:40.66%; Female:59.34%; White: 77.29%; Black:11.62%; Other:3.80%; Hispanic:4.97%; Asian:1.81%; Pacific Islander:0.15%; Native American Native:0.39%), 1999-2012, from the Minimum Dataset to assess sex and ethnicity-specific differences in age-specific prevalence of AD. Total AD prevalence increases sharply (numbers are prevalence proportions with 95% confidence intervals in parentheses) from 1.79 (1.75-1.84) at age 60 to 13.45 (13.39-13.51) at 85. Notable statistically significant sex and ethnicity-related disparities were present at all ages. For example, at age 85 the prevalence of AD was for: i)Males: 11.34 (11.24-11.44); ii)Females: 14.53 (14.45-14.62); iii)Whites: 13.21 (13.14-13.28); iv)Blacks: 15.32 (15.09-15.55); v)Other/Unknown: 9.75 (9.42-10.07); vi)Hispanics: 18.17 (17.82-18.52); vii)Asians: 11.30 (10.87-11.72); viii)Pacific Islanders: 10.33 (8.65-12.01); ix)North American Natives: 11.78 (10.62-12.94). In depth analysis of the causes, time-trends, and geographic distribution of these disparities is needed.
THE LTSS STATE SCORECARD AND AGE-FRIENDLY CARE
Authors: Snyder Rani
Published: December 2023

Age-friendly care is health care that addresses a person’s unique needs and wants across the lifespan. It is a critical part of the age-friendly ecosystem. Rooted in the essential elements known as the “4Ms” (what Matters, Medication, Mentation, and Mobility), age friendly care is critical to successful delivery systems of health care as well as long-term services and supports. For the first time in its history, the LTSS State Scorecard will measure states as it relates to the presence of Age-Friendly Health System sites. Age-Friendly Health Systems is an initiative of The John A. Hartford Foundation and the Institute for Healthcare Improvement, and helps hospitals, doctor’s offices, retail pharmacy clinics, nursing homes, and home-care providers deliver age-friendly care. This portion of the symposium will describe Scorecard findings on Age-Friendly Health Systems and address more broadly the important role of age-friendly care in LTSS.
COGNITIVE MISPERCEPTION, DISABILITY, AND MORTALITY AMONG OLDER ADULTS IN 25 COUNTRIES
Authors: Lin Zhuoer , Schlesinger Mark , Chen Xi
Published: December 2023

Despite a large body of literature on cognitive ability and health, less is known about the health consequences of biased cognitive perception. Using harmonized and nationally representative longitudinal surveys from 25 countries spanning Asia, Europe and the Americas, we document the growing gap between actual and perceived cognitive ability that appears to increase with age, and construct a standardized measure of cognitive misperception. Linking this novel measure with mortality and disability, we model the cognitive misperception – health gradient. Results show that being in the upper quartile of cognitive misperception (i.e., showing heightened overconfidence in cognition) leads to higher mortality rates within 1 year, 3 years, and 5 years. Conditional on survival, being overconfident in cognition also greatly increases the risks of incident disability and frailty, especially for older adults receiving less family support. We identify two possible pathways inducing poorer outcomes: the first stemming from increased risk taking and financial vulnerability; the second associated with suboptimal use of preventive services and declines in health-promoting behaviors. Given the large and profound impacts of cognitive misperception on older adults’ health and well-being, more family and social supports, public investment in education and health literacy, and better healthcare access and affordability are needed to increase the timely awareness of cognitive decline.
DISPARITIES IN CONTINUITY OF CARE AND USE OF ANNUAL WELLNESS VISITS AMONG OLDER AMERICANS WITH DEMENTIA
Authors: Mahmoudi Elham
Published: December 2023

Working on a risk-adjusted, prospective, capitated payment system, Medicare Advantage (MA) plans are incentivized to offer more efficient and coordinated care than traditional Medicare (TM). This study has two aims: (1) compare the continuity of care and use of annual wellness visits between MA and TM enrollees with Alzheimer’s disease and related dementia (ADRD), and (2) examine Hispanic-White and Black-White disparities in the continuity of care and annual wellness visits by comparing MA with TM enrollees with ADRD. We used a 20% random sample of TM and MA insurance claims (2018-2019). Participants included individuals 65+, with a diagnosis of ADRD, and two years of continuous enrollment in TM (n=129,177) or MA (n=119,130). We used the Bice-Boxerman Continuity of Care Index to measure continuity of care. Generalized linear models were applied. TM lowered the odds of Black and Hispanic individuals having an annual wellness visit [OR=.80 (95% CI:.79-.82)]. Black and Hispanic TM enrollees had lower odds of annual wellness visits as compared to their Black and Hispanic MA counterparts [OR=.83 (95% CI:78-.88) and OR=.88 (95% CI:.83-.94)], respectively. White, Black, and Hispanic MA enrollees had higher continuity of care than their counterparts in TM (27.4 vs. 24.9; 28.9 vs. 28.1; 32.1 vs. 30.1, respectively). MA enrollees with ADRD had higher care continuity than their TM counterparts. Compared to TM, MA increased the odds of annual wellness visits and reduced Hispanic-White disparity in annual wellness visits. Findings from this study can inform policies promoting preventive and equitable care for patients with ADRD.
THE DEVELOPMENT AND UTILIZATION OF IMAGE:NYC: THE INTERACTIVE MAP OF AGING
Authors: Kieffer Elana , Scher Clara
Published: December 2023

Online interactive maps are an effective tool to visualize and understand socio-spatial locations of populations layered across the availability of relevant resources. These maps are integral in efforts to advance policies, programs and planning for specific sociodemographic groups. This presentation will describe the development and impact of IMAGE:NYC, The Interactive Map of Aging by The New York Academy of Medicine (NYAM) in partnership with the Center for Urban Research at The Graduate Center at the City University of New York. IMAGE:NYC displays the current and projected population of adults aged 65 and older in New York City with overlays of age-friendly resources, services, and amenities at the neighborhood level. The map draws on several data sources such as the 2016-2020 American Community Survey, local and federal voting patterns, and up-to-date information on health, recreational and housing services. The map has served as an invaluable tool for NYC policymakers, planners, researchers, health care and social service providers. In addition, the IMAGE:NYC model has also been replicated by Rutgers University to create similar maps for two counties in New Jersey. This session will demonstrate the utility of this mapping tool and concrete ways to develop a similar map in other localities.
AGING WELL: OLDER ADULTS AND DATA MAPPING
Authors: Silberman Susan
Published: December 2023

This presentation will feature how the National Council on Aging (NCOA) has advanced a program of work on data mapping and visualization. It will explain how this work is part of NCOA’s mission to improve the lives of millions of older adults, especially those who are struggling. Guided by the idea that how we age should not be determined by gender, color, sexuality, income, or zip code, the mapping tools display area-level data to highlight different aspects of the lives of low-income older adults. This presentation will describe two of NCOA’s mapping tools and how they can influence policy and advocacy efforts toward aging equity at the local, regional, state, and national levels. The first tool, released in 2021, displays, in part, area-level access to smartphones and high-speed internet among low-income older adults. This map makes visible the invisible by demonstrating low rates of access even in geo-spatial areas with overall high levels of connectivity. The second tool, to be released in the third quarter of 2023, presents sub-state level data to identify gaps between area-level eligibility for each of three essential benefit programs [Supplemental Nutrition Assistance Program (SNAP)], Supplemental Security Income (SSI), and Medicare Savings Program (MSP)] and area-level enrollment rates. This map demonstrates how socio-spatial positions influence access to these national benefits, and how maps can be used to identify regions and communities to prioritize as part of strategic efforts to improve benefit access and promote aging equity.
A STRUCTURED APPROACH TO EVALUATING LIFE COURSE INFLUENCES ON DNA METHYLATION AGE ACCELERATION
Authors: Faul Jessica , Collins Stacey , Farina Mateo , Klopack Eric , Masood Zainab , Meier Helen , Mitchell Colter , Crimmins Eileen
Published: December 2023

Lower socio-economic position (SEP) is associated with increased biological age acceleration measured using DNA methylation (DNAm). Prior studies using cohorts from the US and UK have shown a relationship between social mobility and DNAm age acceleration such that those who experienced upward mobility exhibited slower biological aging relative to continuously advantage groups while those with disadvantaged SEP across the life course experienced the most rapid DNAm age acceleration. However, using a social mobility model, it is not clear to what extent childhood may be a sensitive period for the impact of social disadvantage on DNA methylation or whether an accumulation of disadvantage hypothesis is consistent with the data. In this study, we apply a structured life-course modeling approach (SLCMA), a theory-driven analytical method that compares life course hypotheses of time-dependent exposure-outcome relationships, to determine whether early life is a sensitive period for DNAm modification using data from approximately 4,000 participants of the 2016 Health and Retirement Study (HRS) Venous Blood Study. We hypothesize that childhood is a sensitive period during which exposure to lower socio-economic position results in greater DNAm changes. We compare this to alternative hypotheses including the accumulation of disadvantage, in which the effect of low SEP increases with the duration of exposure, and the recency of disadvantage, in which the effect of low SEP is stronger for exposure in later life.
USING A COMMUNITY ADVISORY BOARD TO DEVELOP A TELEHEALTH CONCIERGE FOR RURAL OLDER CANCER SURVIVORS
Authors: Singh Revika , Rosen Francesca , Lewis-Thames Marquita
Published: December 2023

Compared to pre-pandemic telehealth utilization, rural telehealth utilization has increased 1700% for some rural healthcare facilities. Yet, rural older adults remain slower to adopt telehealth, partly due to technical knowledge barriers. To identify practical solutions to overcome these navigation barriers for rural older adults, perspectives about telehealth implementation by older adults are necessary but remain a gap in research. To this end, this project adopts a user-centered design approach to develop a relevant, end-user-informed telehealth navigation tool for rural older cancer survivors with cancer-related distress through a community advisory board (CAB). We identified and selected CAB members from May-September 2022 from community-based organizations (CBOs) serving rural counties and zip codes in northern and central Illinois. CBOs were identified through internet search or snowball recruitment. Operating CBOs and interested community members with rural health interests received an email or telephone call about the CAB to review the roles and responsibilities of the CAB and confirm their interests. To date, over 30 CBOs in rural Illinois were identified, contacted, and mapped according to their rural health resources. We conducted two in-person and three virtual orientations. We identified one mental health professional, one older cancer survivor, one community member, three social workers/patient navigators to join the CAB. Preliminary barriers to telehealth utilization identified through ongoing CAB meetings include inadequate/inaccessible internet infrastructure, variable technical literacy, and concerns about trust-building and confidentiality. Ultimately, community advisory boards can be an effective approach in bridging community and academic partners to improve telehealth navigation for older rural adults.
CARE FOR OLDER ADULTS: WHAT SKILLS DO HEALTH CARE EMPLOYERS VALUE IN COMMUNITY COLLEGE STUDENTS?
Authors: Chidebe Runcie , Cummins Phyllis , Narine Donnette , Yamashita Takashi
Published: December 2023

Community colleges (CCs) play an important role in educating healthcare workers engaged in caring for aging populations with greater healthcare and long-term care needs. Healthcare employers and nursing home leaders are obligated to ensure that care provided by their employees meets quality standards, is patient-centered and free from psychological and physical harm. To increase the employability of CC students and understand the skills valued by employers in improving care for older adults, we explored the role literacy, numeracy, and problem-solving skills play in CC student success in the workplace. Using a qualitative descriptive design, we conducted semi-structured interviews with CC administrators (n=9), faculty (n=6), and employers (n=10) who hire healthcare workers (certified nursing assistants, licensed practical nurses (LPNs), and registered nurses (RNs)) educated at CCs. Our findings show that communication skills are highly valued, especially the ability to communicate on the level of the nursing home resident or hospital patient, along with their family members. Numeracy skills, such as measuring medication dosages, critical thinking skills, and problem-solving skills, including conflict resolution, emotional intelligence, and compassionate care are valued by employers. Employers reported that LPNs and RNs have limited leadership and supervisory skills and there is a need to use innovative mechanisms (e.g., case studies, online courses) to improve those skills. Serving on CC advisory councils, clinical rotations and employers’ input into program development were reported as beneficial strategies. Findings from this project will inform both CC administrators and employers regarding skills that are valued in caring for older adults.
FOXO3 LONGEVITY GENOTYPE AND CEREBROVASCULAR DISEASE
Authors: Nakagawa Kazuma
Published: December 2023

The influence of the FOXO3-longevity associated genotype on cerebrovascular disease (CVD) is little studied. There are reports of a protective effect against stroke mortality in some populations. But these findings have not been widely replicated, nor have potential mechanisms been identified. This presentation will present recent, novel insights on the relation of FOXO3 genotype to CVD. We studied a cohort of over 800 American men of Japanese ancestry from the Kuakini Honolulu Heart Program (KHHP) and Kuakini Honolulu-Asia Aging Study (KHAAS). This population-based dataset included brain autopsy data and age-adjusted prevalence of various types of CVD, including intracerebral hemorrhage (ICH) and cerebral microinfarcts (CMI). Logistic regression models, adjusted for age at death, cardiovascular risk factors, FOXO3 and APOE-ε4 genotypes, among other risk factors were utilized to determine the predictors of both outcomes. FOXO3 genotype did not directly modify risk for ICH or CMI. However, the FOXO3 longevity genotype had significant interaction (protective) effects against hypertension-associated ICH and CMI. These data suggest that the longevity-associated FOXO3 G-allele mitigates the impact of hypertension on the risk of ICH and CMI. Further research is needed in other populations.
THE ASSOCIATION OF ANXIETY WITH INDOOR AND OUTDOOR FALLS AMONG COMMUNITY-DWELLING OLDER ADULTS
Authors: Chen Lingming , Procter-Gray Elizabeth , Churchill Linda , Zhang Meng , Le Qun , Berry Sarah , Hannan Marian , Li Wenjun
Published: December 2023

One in three older adults aged 65 years or greater fall at least once each year. The effects of psychosocial factors on falls remain to be fully understood. This study examined the association of anxiety with subsequent indoor and outdoor falls among older adults. The prospective cohort study enrolled 359 community-dwelling older adults aged 65-95 years old in central Massachusetts (2018-2020). Anxiety at baseline was measured by the Beck Anxiety Inventory. Falls were reported on monthly falls calendars, and when a fall was reported, the circumstances were collected via telephone interview. Negative binomial models were used to estimate the effect of anxiety on indoor and outdoor falls, separately. Models were adjusting for sociodemographic, physical health (BMI, bodily pain, comorbidities), depression, stress, functional status (Activities of Daily Living, chair standing test), physical activity, drinking, smoking, the fear of falling and ever fallen in the past year. Overall, the rates of indoor falls and outdoor falls were 41 per 100 person-years and 46 per 100 person-years, respectively. Anxiety was a statistically significant predictor of indoor falls; for every one point increased in Beck Anxiety Inventory, there was a 6% increase in the incident rate of indoor falls after adjusting for covariables listed above (IRR (95% CI): 1.06 (1.01-1.11)). Anxiety was not significantly associated with outdoor falls (IRR (95% CI): 0.98 (0.93-1.02)). In conclusion, anxiety was associated with higher rate of indoor falls but not outdoor falls. Future falls prevention should consider the differential impact of anxiety on indoor and outdoor falls.
CREATING INTERNET-BASED DISTANCE LEARNING IN GERONTOLOGY
Authors: Schneider Edward
Published: December 2023

Dr. Schneider was Associate Director and then Deputy Director of the National Institute on Aging from 1980 through 1986. Dr. Schneider helped to create the Geriatric Leadership Academic Award. This award funded geriatric positions in many medical schools including Harvard, Johns Hopkins, Duke the University of California at Los Angeles, and the University of Tennessee. These awards led the creation of Geriatric Divisions at numerous American medical schools. After he became Dean of the Leonard Davis School of Gerontology, Dr. Edward Schneider with Maria Henke created the nation’s first Internet based Master’s Degree program in Gerontology. This program has graduated over 1000 students since then.
PREDICTING OLDER ADULTS’ CONTINUED COMPUTER USE AFTER INITIAL ADOPTION
Authors: Zhang Shenghao , Boot Walter
Published: December 2023

Digital technologies have the potential to help older adults in various aspects of their lives, but older adults need to adopt and keep using the new technologies to reap the benefits. Previous research on digital divide mainly focuses on adoption and acceptance of new technologies, and little is known about what might influence actual use and disuse after this initial stage. The current study modeled changes in constructs related to computer use after initial computer adoption and examined whether these changes predict continued use. We used data from the computer arm (N = 150, MAge = 76.15) of a 12-month field trial examining the potential benefits of computer use in older adults. Individual differences identified in the technology acceptance literature (perceived usefulness, ease of use, computer interest, computer self-efficacy, computer anxiety, quality of life, social isolation, and social support) were measured before (baseline), during (month 6), and after the intervention (posttest). Univariate and bivariate latent change score models examined changes in each predictor and their potential causal relationship with use. Results demonstrated large inter-individual differences in the change patterns of individual difference factors examined. Change in perceived usefulness, perceived ease of use, and computer interest, computer self-efficacy, and computer anxiety were correlated with but not predictive of change in use. Our findings demonstrate the limitation of popular constructs in technology acceptance literature in predicting continued use after initial adoption and point out important gaps in knowledge to be targeted in future investigations.
POLICY SERIES: LET’S CONNECT: LINKING RESEARCH TO POLICY IN FAMILY CAREGIVING
Authors: Bangerter Lauren , Wittke Michael , Cothran Fawn
Published: December 2023

There is a need in the field of family caregiving to bridge the gap between academic research and policy translation by providing interdisciplinary caregiving researchers the skills and training they need to ensure their research is relevant to today’s policy discussions on family caregiving at the state and national levels. Quality research rests on sound institutional processes and methodological practices. This session will explore opportunities to elevate caregiving research for advocacy and policy audiences and how to inform policymakers about cutting-edge caregiving research across disciplines - particularly by advancing goal 5 within the National Family Caregiver Strategy - which calls for a stronger research and data collection infrastructure. We will offer caregiving researchers the best approaches for integrating policy research and implementation science approaches into their work as well as tactics to help sharpen their skills in messaging caregiving research for policy audiences, writing for a variety of audiences and platforms, and presenting data for policy and advocacy audiences. Presenters will cover topics such as facilitating additional research by public and private institutions by standardizing, expanding, and improving data collection by federal agencies; improving data collection on family caregiver health conditions and risk factors; improving data collection on family caregivers of people with multiple conditions; constructing additional channels on the local level that can gather detailed patient and family caregiver experience data to inform public health programming and policy development; and disaggregating data on diverse family caregiver populations to address the lack of segmentation and intersectionality in family caregiver research.