bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Preliminary Results: Study of Crustal Structure in Cimandiri Fault Based on Teleseismic Receiver Function Analysis
Authors: Ariyanto P , Rizqinandana E , Marsono A , Suardi I , Pranata B , Daryono  , Adi S P 
Published: December 2023

Abstract
West Java is one of the regions in Indonesia that has a complex geological structure caused by plate subduction in the south of Java Island. This resulted the formation structure of the main faults in West Java, including the Cimandiri Fault. The high level of seismicity on the Cimandiri Fault is interesting to be further researched to understand the structure of the Earth crustal, such as variations depth of the Moho layer and the determination of local velocity models of P and S waves. This study used receiver function analysis from teleseismic earthquake data with an epicentral distance of 30°-90° from the station location and magnitude ≥ 6. This study used 3 seismic stations belonging to the Meteorological, Climatological, and Geophysical Agency (BMKG) close to the Cimandiri Fault which are Sukabumi station (SKJI), Warung Kiara (WSJM), and Sukaraja (SSJM). The depth of the Moho layer at SKJI station is 34-36 km, WSJM station is 28-30 km, and SSJM station is 29-31 km which is located close to the segment from the Cimandiri Fault. A negative phase or decrease in speed was observed at the SKJI and WSJM stations which is estimated to come from the Cimandiri Fault structure which is at a depth of 17-19 km. Furthermore, the P wave velocity model at the three stations is at an interval of 7.6-8.6 km/s and the S wave velocity model is at an interval of 4.2-4.8 km/s.
Seismic microzonation for Lembang fault hazard area in West Bandung Regency based on microtremor measurement
Authors: Arrahman M Arif , Tohari Adrin , Perwita Cholisina Anik 
Published: December 2023

AbstractLembang district in Bandung Regency is prone to seismic risk because it is in the vicinity of a very well-known active fault called the Lembang Fault. The effort to reduce the seismic risk requires knowledge of the dynamic properties of the soils, mainly derived from young volcanic rocks. This paper presents the results of a seismic microzonation study based on microtremor measurements. In total 195 microtremor data from single-station measurements were processed using the HVSR method to estimate the dominant frequency and amplification factors. Furthermore, the Rayleigh wave ellipticity inversion has also been used to estimate the corresponding Vs profiles. The HVSR results show that the dominant frequency for the Lembang District is 0.2 Hz or higher, and the amplification factors are dominantly higher than 3. Some areas also have a lower dominant frequency than 2 Hz, especially the area with thick soft sediments. Results of the inversion show that the shear wave velocities of subsoil layers for the upper 30 m vary from 250 m/s to 300 m/s, indicating site class D. Meanwhile, the areas with Vs30 less than 250 m/s are especially located north of the Lembang Fault. Thus, the area is likely to have a stronger ground response to earthquake shaking than the other areas in Lembang District.
Mapping of Soil Dynamic Response of Palu City Based on Horizontal to Vertical Spectral Ratio (HVSR) Method
Authors: Salsabila R.S. , Yudistira T. , Tohari A 
Published: December 2023

Abstract
Palu is one of the earthquake prone coastal cities in Indonesia. The 28 September 2018 earthquake (Mw 7.5) destroyed buildings in Palu due to ground shaking amplification, liquefaction, and tsunami. This phenomenon implies the importance of soil dynamic properties knowledge as a basis for proper building design to reduce such an earthquake. This paper presents the results of microtremor measurements conducted at 110 locations in Palu to estimate the dynamic properties of alluvial and marine deposits for earthquake mitigation. The microtremor data were processed using the HVSR method to estimate dominant frequency and amplification factors. Based on these two parameters, the seismic vulnerability index value can be used to estimate the dynamic characteristic variations of the area. The results show that alluvial and marine sediments in Palu have dominant frequency values from 0.54 to 11.72 Hz, amplification from 1.64 to 6.15, and seismic vulnerability index of 1.49 to 56. Sediments with low dominant frequency and high amplification factors are mostly found in the western and eastern Palu and Mantikulore districts, which are associated with thick sediment layers. The areas with the highest amplification factor and seismic vulnerability index are Petobo and Balaroa, which experienced severe damage during the 2018 earthquake.
Estimate and Analyze The Impact to the Brittleness Index of Digital Rock Image of Carbonate
Authors: Josephus D C , Rahmareza M K , Fatkhan  , Fauzi U 
Published: December 2023

Abstract
Digital rock physics is a modern method of determining the elastic properties, an important parameter to analyze the brittleness index, combining the digital technique with the numerical method. This paper analyses the effect of mineral content, water saturation, fluid type, and porosity. Carbonate digital images with 501 × 450 × 482 pixels which are divided into sub-cubes of 50 pixels3 are used. Calculating stress and strain with a numerical approach to producing the modulus elastic, and then the brittleness index can be approximated. The result shows calcite and ankerite are stiffer than quartz but not resistant to shear stress. An increase in the fluid saturation decreases the modulus value linearly in the oil case but suddenly in the gas case. For porosity variation, the greater the porosity in a material or rock will make it less rigid and not easily deformed. The effect on brittleness increases when water is replaced by fluids (either oil or gas) but decreases when there is more calcite, and ankerite and also goes down if the porosity gets bigger. So this study concludes, calcite, ankerite, and increasing porosity make the material more ductile but fulfilling with fluid will make it a little more brittle.
Curved Pseudo Elastic Impedance based on Elastic Attribute Rotation Scheme for Reservoir Petrophysical Property Prediction
Authors: Winardhi S , Dinanto E , Sigalingging A S , Adityo R , Utami A P , Ritonga A B , Satriawan W , Budiyono  
Published: December 2023

Abstract
Seismic based reservoir characterization commonly attempts to estimate petrophysical properties of a reservoir from a combination of elastic attributes resulted from seismic inversion. Two most wanted main reservoir properties to be estimated are porosity variation and hydrocarbon saturation across the reservoir. A combination of acoustic impedance (AI) and the ratio between P- and S-wave velocities (Vp/Vs ratio) based on rock physics models had been used in the earlier study to form Curved Pseudo Elastic Impedance (CPEI) attribute. However, the approach involved a fourth order polynomial in the logarithmic domain of AI and Vp/Vs ratio. A much simpler approach of combining these elastic properties to form CPEI attributes which is based on attribute rotation scheme is proposed in this study. To illustrate the methodology, we applied to well and seismic data located in the Natuna Basin, Indonesia. Results show that better attributes correlation to porosity and hydrocarbon saturation variation is achieved.
Noise and site response characterization in Makassar Strait and Celebes Sea based on Ocean Bottom Seismometer
Authors: Natafrisca Widjra Cyiena Christi , Zulfakriza  , Widiyantoro Sri 
Published: December 2023

Abstract
To overcome the limited information in the northern waters of Sulawesi Island, ocean bottom seismometers (OBS) were installed in the northern part of the Makassar Strait and the Sulawesi Sea. OBS data were analysed using passive seismic methods to determine the characteristics of noise and site response in the Makassar Strait and the Celebes Sea. Probabilistic Power Spectral Density (PPSD) from OBS station showed microtremor in the period 0.06 – 0.7 s, secondary microseismic peak in the period 0.9 – 2 s, secondary microseismic peak in the period 4 – 8 s, and hum in the period more than 10 s. The amplitude of the noise power is in the range of New Low Noise Model (NLNM) and New High Noise Model (NHNM) for a period <10 s and slightly above NHNM for a period >10 s for OBS IGGCAS F-type. For OBS IGGCAS G-type, the noise power amplitude is in the period < 0.7 s in the NLNM and NHNM ranges. However, there is a tendency for the noise power amplitude to be flat with an amplitude above NHNM for a period > 0.7 s. The noise power’s amplitude depends on the station’s location, climate, instruments, daily variations, and seasonal variations. Horizontal-to-Vertical Spectral Ratio (HVSR) in the North Makassar Strait shows an H/V curve with an unclear peak in the middle of the strait and multiple peaks in the eastern part of the strait with a frequency range of 1.35 – 4.7 Hz. Between the Makassar Strait and the Celebes Sea, the H/V curve shows a flat peak and multiple peaks with a frequency range of 1.10 – 4.03 Hz. Meanwhile, in the Celebes Sea, the H/V curve shows an unclear peak (unclear peak) and several peaks (multiple peaks) with a frequency range of 0.65 – 6.25 Hz.
Moho Depth Estimation using Receiver Function beneath Mt. Manglayang Area, West Java, Indonesia
Authors: Puteri M F D , Nugraha A D , Zulfakriza  , Lesmana A , Sahara D P , Puspito N T , Syafawi I 
Published: December 2023

Abstract
This study aimed to determine the Moho depth using data from a single seismograph station known as JN01, located on the ITB campus in Jatinangor. The investigation focused on seismic events that occurred within a specific range of distances between 30° and 90° included a total of 34 events. The signals received were analyzed by the seismograph for each of these events. This analysis involved applying a bandpass filter ranging from 0.05 to 1 Hz. Subsequently, the receiver function method was used through a water-level deconvolution process (water-level set to 0.005, Gaussian factor 2.5). The receiver function signals from all 34 seismic events then stacked and determined the arrival time of the P-wave phases for the Ps phase at 3.063 seconds, the PpPs phase (TPpPs) at 11.408 seconds, and the PpSs + PsPs phase (TPsPs + PpSs) at 14.472 seconds. These arrival times were used in H-κ stacking to estimate the Moho depth with additional weight factors of 0.7, 0.2, and 0.1. Preliminary findings indicate that the Moho depth estimation in this area is approximately 28.4 km, and also determined a Vp/Vs ratio of about 1.733.
Behavioral estimates of mating success corroborate genetic evidence for pre-copulatory selection
Authors: Bhave Rachana S , Seears Heidi A , Reedy Aaron M , Wittman Tyler N , Robinson Christopher D , Cox Robert M 
Published: December 2023

Abstract
In promiscuous species, fitness estimates obtained from genetic parentage may often reflect both pre- and post-copulatory components of sexual selection. Directly observing copulations can help isolate the role of pre-copulatory selection, but such behavioral data are difficult to obtain in the wild and may also overlook post-copulatory factors that alter the relationship between mating success and reproductive success. To overcome these limitations, we combined genetic parentage analysis with behavioral estimates of size-specific mating in a wild population of brown anole lizards (Anolis sagrei). Males of this species are twice as large as females and multiple mating among females is common, suggesting the scope for both pre- and post-copulatory processes to shape sexual selection on male body size. Our genetic estimates of reproductive success revealed strong positive directional selection for male size, which was also strongly associated with the number of mates inferred from parentage. In contrast, a male’s size was not associated with the fecundity of his mates or his competitive fertilization success. By simultaneously tracking copulations in the wild via the transfer of colored powder to females by males from different size quartiles, we independently confirmed that large males were more likely to mate than small males. We conclude that body size is primarily under pre-copulatory sexual selection in brown anoles, and that post-copulatory processes do not substantially alter the strength of this selection. Our study also illustrates the utility of combining both behavioral and genetic methods to estimate mating success to disentangle pre- and post-copulatory processes in promiscuous species.
Leisure Engagement and Self-Perceptions of Aging: Longitudinal Analysis of Concurrent and Lagged Relationships
Authors: Bu Feifei , Mak Hei Wan , Bone Jessica K , Gao Qian , Sonke Jill K , Fancourt Daisy 
Published: December 2023

Abstract

Objectives
There is evidence to suggest that leisure engagement may influence self-perceptions of aging, but disentangling potential bidirectionality in this relationship is challenging. A better understanding of the directionality of this association is essential for designing more effective interventions to promote healthy aging. We, therefore, tested concurrent effects and lagged effects in both directions for a univariate measure of leisure engagement as well as specific domains of community, cognitive, creative, and physical activities.

Methods
A total of 17,753 adults aged 50 or above living in the United States from the Health and Retirement Study were included in the analysis. They provided 32,703 observations over 3 waves between 2008/2010 and 2016/2018. Data were analyzed using structural equation modeling with both concurrent and lagged associations between self-perceptions of aging and leisure engagement, controlling for confounders including age, gender, ethnicity, socioeconomic position, and health conditions.

Results
We found consistent evidence for leisure engagement as a predictor of self-perceptions of aging. There was also evidence for a reciprocal relationship where leisure engagement was predicted by older adults’ self-perceptions of aging. Similar results were observed for specific domains of leisure engagement.

Discussion
Our findings provide empirical support for the potential benefits of leisure engagement on positive self-perceptions of aging, regardless of the type of activities. Our study also highlights the importance to consider the directionality in researching leisure engagement and self-perceptions of aging.
The Potential of Informal Care for Self-Perceptions of Aging Among Older Community-Dwelling Adults: Longitudinal Findings From the Health and Retirement Study
Authors: Zwar Larissa , König Hans-Helmut , Hajek André 
Published: December 2023

Abstract

Objectives
This is the first study to analyze, whether receipt of (informal) care with (instrumental) activities of daily living (IADL/ADL) is associated with (positive and negative) self-perceptions of aging among community-dwelling older adults; and whether chronological age moderates these associations, using a longitudinal design.

Methods
Longitudinal data of the Health and Retirement Study in the United States was used. The sample was composed of up to 9,198 observations of community-dwelling adults aged ≥50 years pooled over 6 waves (2008–2018). Receiving care at all and the amount of care received with (I)ADL were analyzed in association with positive and negative attitudes towards own aging (ATOA; 8-item modified Philadelphia Geriatric Center Morale Scale, positive and negative subscore). Adjusted fixed effects regression analyses with robust standard errors were calculated.

Results
Transitioning into receipt of care with any (I)ADL was associated with lower positive ATOA but not with any change in negative ATOA. Chronological age moderated the association between receipt of informal care, primarily with IADL, and negative ATOA. More negative ATOA was found among care recipients between 50 and 64 years but less among care recipients aged ≥80 years.

Discussion
Receiving any form of informal care was associated with an increase in internalized ageism, in particular among adults aged 50 to 64 years, but a decrease among those aged ≥80 years. Psycho-educative measures are recommended for adults with care needs to prevent a loss of positive self-perceptions of aging, and reduce the danger to their healthy aging, with the receipt of care.
THE ROLE OF THE NEIGHBORHOOD-BUILT ENVIRONMENT ON OUTDOOR MOBILITY OF PEOPLE LIVING WITH DEMENTIA
Authors: Chaudhury Habib , Hung Lillian , Freeman Shannon , Groulx Mark , Seetharaman Kishore , Wong Joey , Randa Cari 
Published: December 2023

Abstract
Dementia-friendly communities (DFCs) aim to foster a supportive, inclusive and empowering environment that promotes equal rights and resources for people living with dementia and their care partners. Central to DFCs is promoting access and navigation of outdoor spaces and destinations in the neighbourhood. While there is a growing interest and uptake of DFCs in policy and practice, there is scarce empirical evidence on the role of the built environment on mobility and navigation for people living with dementia. The “Dementia-inclusive Spaces for Community Access, Participation, and Engagement (DemSCAPE)” study aims to identify spatial and temporal patterns in activities undertaken outside home by people living with dementia, and ways in which the neighbourhood built environment affects their outdoor mobility and social participation. A series of sit-down and video-and-photo-documented walk-along interviews were conducted with 26 participants who are living with (mild to moderate) dementia or mild cognitive impairment in the Metro Vancouver region of British Columbia, Canada. Findings shed light on how people living with dementia understand and navigate the neighbourhood environment, and features that prompt recall of routes, places, and events, and support orientation and wayfinding. Findings also underscore the importance of participants’ awareness of barriers and obstacles in their neighbourhood, and how they cope with challenges and demands encountered while walking outside. The study offers planners and designers awareness and insights into the lived experience of navigating the neighbourhood environment with the condition of dementia and guidance on adopting a dementia-friendly and inclusive approach in policy and practice.
RECRUITING AND RETAINING NURSES AND FRONTLINE CARE WORKERS IN LONG-TERM CARE: THE REACH REALIST REVIEW
Authors: Devi Reena , Haunch Kirsty , Dalkin Sonia , King Natalie , Bate Angela , Spilsbury Karen , Goodman Claire , Jones Liz 
Published: December 2023

Abstract

Introduction
increasing demand for care, high staff turnover and low numbers of new staff are causing significant staff shortages in the long-term-care (LTC) sector. Solutions need to 1) take the heterogeneity of organisational and staff characteristics into account, and 2) make use of the large volume of literature describing the reasons staff join and stay in LTC work. Our research aimed to develop strategies which attract, recruit and retain Registered Nurses and frontline care workers in LTC; explain how and why strategies are effective, for which staff, the conditions needed, and the costs involved.

Method
This realist review involved (i) co-developing strategies and initial programme theories, (ii) systematically searching the evidence to test IPTs and develop theoretical propositions, and (iii) validating and refining propositions with stakeholder groups.

Results
IPTs around the following strategies were rated as important for attracting, recruiting and retaining staff in LTC, and taken forward to the testing phase of our review: rewarding and recognising staff, offering flexible working, career development opportunities, enhanced salary package, welcoming and inducting staff, listening to and providing staff feedback, developing caring work environments and effective staff interviewing. Leadership, caring cultures, teamwork, resources and adequate staffing levels are important conditions which enable these strategies lead to positive outcomes.

Discussion
this is the first study to use a realist approach to developing strategies focused on attracting, recruiting and retaining the LTC workforce. Our findings will be relevant at an international level. Acknowledgement: we thank Karen Winterburn and Edna Feenan for their important input throughout the project. They have both provided care home family perspectives, and have been involved throughout the development and execution of the project.
YOU ARE ONLY MY STUDENT FOR A LITTLE WHILE; YOU ARE MY COLLEAGUE FOR LIFE
Authors: Sterns Harvey 
Published: December 2023

Abstract
The philosophy of you are my student for a little while-you are my colleague for life was shared with me by my major professor Paul Baltes. This has been my approach over my 50+ year career. I have had a number of significant mentors and have had many great students. In the spirit of this award, I will share my understanding of mentorship.
THE ASSOCIATION BETWEEN PERSON-CENTERED PLANNING AND PERSON-REPORTED OUTCOMES IN HOME- AND COMMUNITY-BASED SERVICES
Authors: Chong Natalie , Caldwell Joseph 
Published: December 2023

Abstract
Person-centered planning (PCP) allows home and community-based service (HCBS) users to plan and coordinate services and supports according to their preferences and needs. The extent to which HCBS systems provide high-quality PCP and evidence for the relationship between PCP and user outcomes is limited. This study examines HCBS user characteristics related to PCP and the association between PCP and both unmet need and community living. We used the 2018-2019 National Core Indicators-Aging and Disability survey’s Person-Centered Planning Module, collected among adult Medicaid HCBS users in 12 states (n = 6,924). Independent variables included two general PCP measures (one on decision-making and another on preferences and choices being reflected in service plans) and a PCP fidelity scale to assess the extent to which users’ most recent service planning meeting was person-centered. Outcomes included two measures of unmet need for services and three measures of community living (i.e., participation, control, and satisfaction). We examined user characteristics associated with PCP and used logistic regression models to assess the relationship between PCP and outcomes. About 85% of users reported they were fully involved in decision-making, 77% reported their preferences and choices were reflected in their service plan, and 57% had their most recent service planning meeting coded as “high fidelity” on the PCP fidelity scale. Each marker of high-quality PCP was consistently related to lower likelihood of unmet need and greater likelihood of experiencing each community living outcomes. Findings suggest high-quality PCP is important for meeting HCBS users’ needs and improving community living outcomes.