bluuebunny/crossref_metadata_2025_split huggingface dataset:
Relation between constituent material fraction in multifilamentary MgB2 wires and requirements for MRI magnets
Authors: Kodama Motomune , Kotaki Hiroshi , Suzuki Takaaki , Tanaka Hideki 
Published: August 2022

Abstract
Magnetic resonance imaging (MRI) occupies the largest segment of the commercial applications of superconductivity. The NbTi wire is typically applied to MRI magnets and fulfils their strict requirements. On the other hand, the dramatically large energy margin in the MgB2 wire is attractive for liquid helium-saving MRI magnets. However, there are many types of cross-sections in the MgB2 wires. This makes it difficult to analyse the applicability of the MgB2 wires to the MRI magnets systematically. This paper focuses on the in situ MgB2 wires with an iron matrix and a Monel reinforced member. Multiple evaluations are conducted for several types of MgB2 wires, and their applicability to the MRI magnets is discussed. Because the critical current density of the superconducting filaments does not largely depend on the cross-section of the wires, the engineering critical current density (J
e) is roughly proportional to the superconducting fraction (λ
sc). The acceptable bending strain of the heat-treated wires increases with the Monel fraction and is in the range of 0.3%–0.65%, which is larger than the value required for coil winding of the MRI magnets. Two types of protection approaches of the magnet are considered. One is an active protection. This approach requires a large fraction of the copper stabilizer in the cross-section of the wire and relatively reduces λ
sc and J
e. The other is the avoidance of quenches over the product lifetime using quick ramp-down of the magnet for unfortunate events, such as cooling system failure and emergency rundown. This approach requires no copper stabilizer and increases λ
sc and J
e thus widens the acceptable operational temperature range. The cross-section of the MgB2 wire can be designed with a certain level of freedom depending on its functional requirements.
Emergent dynamics of light-induced active colloids probed by XPCS
Authors: Zinn Thomas , Narayanan Theyencheri , Kottapalli Sai Nikhilesh , Sachs Johannes , Sottmann Thomas , Fischer Peer 
Published: August 2022

Abstract
Self-propelled particulate systems manifest certain collective behavior of living matter, which have been the subject of intense research over the past decades. One of the elegant methods for realizing such active motions is by means of custom synthesized Janus particles suspended in a catalytic medium that can be triggered upon illumination by ultraviolet light. In this work, the evolution of the particle dynamics from passive diffusive to active ballistic behavior upon light illumination was probed by multispeckle x-ray photon correlation spectroscopy (XPCS). This technique enables not only studying the emergence of active motions in three dimensions (3D) but also deciphering different contributions to the overall dynamics. Using a combination of homodyne and heterodyne analysis, the ensemble averaged mean velocity, velocity fluctuations and diffusion coefficient of particles were determined in the thermodynamic limit. Results revealed a gradual transition from diffusive to ballistic dynamics with systematic increase of the catalytic activity. At the intermediate region, the dynamics is dominated by Gaussian velocity fluctuations and an enhanced relaxation rate with a weaker wave vector dependence similar to superdiffusive behavior. For the highest activity, the dynamics became purely ballistic with Lorentzian-like distribution of velocity fluctuations. Presented results demonstrate that different aspects of active dynamics can be investigated in 3D over a broad range of Péclet numbers and other control parameters by means of multispeckle XPCS.
Unified approach to the nonlinear Rabi models
Authors: Duan Liwei 
Published: August 2022

Abstract
An analytical approach is proposed to study the two-photon, two-mode and intensity-dependent Rabi models. By virtue of the su(1, 1) Lie algebra, all of them can be unified to the same Hamiltonian with

Z

2

symmetry. There exist exact isolated solutions, which are located at the level crossings between different parities and correspond to eigenstates with finite dimension. Beyond the exact isolated solutions, the regular spectrum can be achieved by finding the roots of the G-function. The corresponding eigenstates are of infinite dimension. It is noteworthy that the expansion coefficients of the eigenstates present an exponential decay behavior. The decay rate decreases with increasing coupling strength. When the coupling strength tends to the spectral collapse point g → ω/2, the decay rate tends to zero which prevents the convergence of the wave functions. This work paves a way for the analysis of novel physics in nonlinear quantum optics.
Recompilation-enhanced simulation of electron–phonon dynamics on IBM quantum computers
Authors: Jaderberg Benjamin , Eisfeld Alexander , Jaksch Dieter , Mostame Sarah 
Published: August 2022

Abstract
Simulating quantum systems is believed to be one of the first applications for which quantum computers may demonstrate a useful advantage. For many problems in physics, we are interested in studying the evolution of the electron–phonon Hamiltonian, for which efficient digital quantum computing schemes exist. Yet to date, no accurate simulation of this system has been produced on real quantum hardware. In this work, we consider the absolute resource cost for gate-based quantum simulation of small electron–phonon systems as dictated by the number of Trotter steps and bosonic energy levels necessary for the convergence of dynamics. We then apply these findings to perform experiments on IBM quantum hardware for both weak and strong electron–phonon coupling. Despite significant device noise, through the use of approximate circuit recompilation we obtain electron–phonon dynamics on current quantum computers comparable to exact diagonalisation. Our results represent a significant step in utilising near term quantum computers for simulation of quantum dynamics and highlight the novelty of approximate circuit recompilation as a tool for reducing noise.
Introduction of unsaturated soil mechanics in Indonesia to improve the understanding on geotechnical engineering-related infrastructure problems
Authors: Krisnanto S , Susila E , Sahadewa A , Nawir H , Rismantojo E , Apriadi D 
Published: August 2022

AbstractSeveral geotechnical engineering-related infrastructure problems cannot be quantified comprehensively using classical soil mechanics for saturated soils. This emphasizes the need of analysis using the framework of unsaturated soil mechanics (USM). The graduate course on soil mechanics for unsaturated soils is provided in Bandung Institute of Technology (ITB) to answer these challenges. The understanding on geotechnical engineering-related infrastructure problems in Indonesia is improved in the course. The understanding on the basic topics in USM is emphasized throughout the course. The balance between the eagerness for innovative design and the carefulness in the design is conveyed using the course. The laboratory testing apparatuses are being developed as a part of the course as well as a part towards the implementation of USM in Indonesia. An option of stages in introduction of USM in Indonesia is proposed.
Effects of Dammar as the partial substitution of bitumen in HMA AC-WC containing Buton Asphalt
Authors: Ngii E , One L , Nasrul N , Udo M I 
Published: August 2022

Abstract
Petroleum asphalt is the residue of fossil fuel distillation. The flexible pavement material generally uses petroleum asphalt. The world’s need for bitumen increases from year to year to pavement materials. Meanwhile, the availability of bitumen as a non-renewable resource is limited. To meet the world’s need for bitumen in the future, the utilization of natural polymers, such as a dammar, can be the best solution. This study aims to analyze the influence of dammar on the Marshall stability of HMA AC-WC containing Buton Granular Asphalt (BGA). This study was carried by using Marshall testing on the Asphalt Concrete Wearing Courses (AC-WC) containing Buton asphalt of 10%. Bitumen content is in all specimens amount 6,3%, bitumen content of BGA 50/30 is 22,48%, and the variation of dammar content is as the substitution of bitumen of 2.5-10%. Before mixing all material, it was first conducted the mixing of dammar and penetration at the temperature of 90°C to get a modified asphalt. The use of 10% dammar in asphalt mixtures meets the requirements of Bina Marga specifications. Utilization of Dammar content of 10% with BGA content of 10% can substitute petroleum asphalt by 45.68%.
Numerical modeling: the effect of land subsidence on hydrodynamic conditions and coastal morphology in Pekalongan
Authors: Muhammad I F , Yuanita N , Nugroho E O , Wijaya F S , Martin R J , Yola  , Fauzi N 
Published: August 2022

Abstract
This study examines the effect of land subsidence on hydrodynamic conditions and coastal morphology through numerical modeling using MIKE21 with 30-day simulation time. Land subsidence is assumed to be 10 cm/year, which affects bathymetry. There are 2 modeling scenarios, scenario 1 before (2016) and scenario 2 after land subsidence (2021). River discharge is assumed to be constant at 10 m3/s. The model calibration result on water level elevation and current velocity of the model simulation output and field data comparison based on the variation of Chezy Number, the smallest error was obtained at Chezy Number 50 m0.5/s. The sediment transport model sensitivity test was conducted on parameters of model type, sediment grain size, and river discharge. The result of sensitivity test demonstrated that the sediment grain size is the most sensitive parameter. By comparing the two model scenario results show that the current velocity in scenario 1 is greater than scenario 2 by 20%, significant wave height in scenario 1 is smaller than scenario 2 up to 0.1 m, and sedimentation in Mangrove Park increases up to ± 0.01m. Land subsidence reduces the current velocity, increases the significant wave height and sedimentation.
Sustainability Analysis of The Upper Citarum Watershed Based on Water quality, Water quantity, and Landuse Indicators
Authors: Marselina M , Putri N M 
Published: August 2022

Abstract
River is one of the surface water resources used to meet people’s need for daily clean water. Along with the population growth, problems related to waste produced are also increasing and causing environmental pollution, including river water pollution. River sustainability is one of the issues that has attracted the attention of various institutions, one of which is the Citarum River which is one of the sources of raw water for people in West Java. In this study, analysis of the sustainability condition from the upstream of the Citarum watershed was carried out in terms of three indicators, namely water quality, water quantity, and land use. The study was conducted using water quality data at four monitoring points, river water discharge, and land use maps around the upstream of the Citarum watershed. The three types of data were processed separately where water quality data were used to determine the status of water quality using the CCME WQI method, river water discharge data were used to calculate the River Regime Coefficient (RRC) value, and land use data were used to calculate the Land Cover Index (LCI). The index values obtained from each calculation were then analyzed and combined into one value for the Upper Citarum Sustainability Index (UCSI) using the composite index method. The results of this study found that the values of UCSI in the period of April – September 2014 are 0.442; 0.419; 0.415; and 0.403. All these values are categorized in the sub-sustainability class with the interpretation that some of the river functions are slightly damaged. The UCSI value also tends to decrease from time to time towards the un-sustainability class with water quality being the indicator that plays the most role in decreasing the UCSI value in this study.
Study of Temporal and Spatial changes in the Estuarine Area of the Mayangan River, West Java – Indonesia
Authors: Achiari Hendra , Rajin  , Gurusu  
Published: August 2022

Abstract
The estuarine of the Mayangan River is an area confluence the Mayangan River with the Java Sea. Pondok Bali beach which is about a half kilometer from River mouth of the Mayangan River has undergone a severe abrasion process since 2006. Pondok Bali’s coastline changes are expected to affect the estuary area. It caused flooding and changes in water quality on the Mayangan water river area. This research was studied the factors that cause of river level rise and changes in water quality of the Mayangan River whether it has an impact of coastline geometry change. The results of hydrodynamic and water quality model simulations showed river water discharge and increase Sea level is a more influential factor compared to the change in coastline geometry or bathymetry of the river mouth. The increase in salinity at some observation points of the Mayangan River from 2006 to 2014 was only 0.2 ppt, from 2011 to 2014 the salinity increase was only 0.1 ppt, and from 2014 to 2020 only 0.03 ppt.
Disaster and Resilient Infrastructures at Musi Riverside Settlement in Palembang
Authors: Wicaksono Bambang , Siswanto Ari , Fransiska Widya , Kusdiwanggo Susilo 
Published: August 2022

Abstract
The Settlement of the Musi Riverside in Palembang City is the strongest attraction for the community to build settlements. These settlement of the Musi Riverside, which have been inhabited for generations, has architectural and cultural aspects that reflect traditions that still survive. However, the community’s need for housing and riverside infrastructure that extends to cover river catchment areas actually causes changes in land topography, changes in water management, and even river widths that cause urban flooding. The purpose of this study is to reconstruct the resilience of residential infrastructure on the banks of the Musi River, Palembang in the face of urban flooding. This study uses a quantitative method with descriptive analysis, which is made in cross tabulation and based on a geographic information system (GIS). The results showed that the resilience of riverbank infrastructure in the settlements of 5 Ulu and 7 Ulu in dry land was in the form of road expansion, while in wetlands it was in the form of expansion of concrete roads. The direction in reconstructing the disaster resilience of riverside settlements based on exogenous and endogenous aspects is to plan infrastructure criteria for good riverside land.
Underprescribing of statin therapy in people with HIV at risk for atherosclerotic cardiovascular disease
Authors: Gallegos Aragon Kelsea , Ray Gretchen , Conklin Jessica , Stever Erin , Marquez Carlos , Magallanes Adan , Anderson Joe , Jakeman Bernadette 
Published: August 2022

Abstract

Purpose
People with HIV (PWH) are at increased risk for developing atherosclerotic cardiovascular disease (ASCVD). The primary objective of this study was to evaluate adherence to guideline recommendations on statin use in PWH for both primary and secondary ASCVD prevention in a single healthcare institution.

Methods
A retrospective chart review was performed to evaluate statin use for cardiovascular risk reduction in PWH 40 to 75 years of age at an HIV clinic over a 1-year evaluation period. The study included patients who met one of the 4 criteria for statin therapy defined in the “ACC/AHA Guideline on the Treatment of Blood Cholesterol to Reduce Atherosclerotic Cardiovascular Risk in Adults.” Patient demographics were collected and a 10-year ASCVD risk score was calculated.

Results
A total of 432 PWH were evaluated for statin therapy; 205 patients (47.5%) met criteria for statin therapy. The majority of patients were male, the average age was 58 years, and the average time since HIV diagnosis was 19 years. The mean ASCVD risk score was 14.2%. Only 79 patients (38.5%) who met criteria were prescribed statin therapy, and only 45 (56.9%) were prescribed statin therapy of appropriate intensity. Use of ART pharmacokinetic enhancer was low and did not affect statin prescribing. Multivariable analysis found that age, diabetes, clinical ASCVD, and an appointment with a pharmacist clinician prescriber predicted statin utilization. A high ASCVD risk score (&gt;20%) did not predict statin treatment.

Conclusion
Statin prescribing is low in PWH, who are at increased risk for ASCVD. Future research in PWH should focus on improving ASCVD risk assessment and exploring causes for statin underprescribing.
A-1 Comparison of Consensus and Actuarial Diagnosis of MCI in Hispanic and non-Hispanic Samples
Authors: Carlew Anne R , Goette William , Schaffert Jeff , Rossetti Heidi , Lacritz Laura 
Published: August 2022

Abstract
Objective: The Jak/Bondi actuarial method has been found to be superior to consensus diagnosis in identifying MCI in some but not all populations and may not perform as well in diverse samples. In this study, diagnostic agreement between actuarial and clinical consensus methods was examined by ethnic group in the heavily Hispanic/Latinx Texas Alzheimer’s Research and Care Consortium (TARCC) cohort.
Method: TARCC participants with consensus diagnoses of NC and MCI at baseline (n = 1011; 66.47% female; 49.75% Hispanic; Mage = 67.28; Medu = 13.21) were reclassified via actuarial criteria of two failed tests (&gt;1 SD below normative [MOANS in TARCC] mean) in one cognitive domain OR one failed test in 3+ cognitive domains. Chi square analyses investigated diagnostic agreement and test fail rates by ethnicity.
Results: Diagnostic agreement significantly differed between ethnic groups (Cramer’s V = 0.42). 57% of the Hispanic consensus-NC group were relabeled as actuarial-MCI while just 12% of the consensus-NC non-Hispanic sample were classified as actuarial-MCI. The non-Hispanic consensus-MCI sample was more likely to be reclassified as actuarial-NC (47% reclassified). Failure rates were significantly higher for the Hispanic group on 8 of 10 neuropsychological tests (Cramer’s V = 0.106–0.542).
Conclusions: The Jak/Bondi MCI actuarial method could be prone to false-positive errors in Hispanic/Latinx samples, based on these findings in a significantly more diverse cohort than previously studied. Because the actuarial method relies on normed scores, its application may be more difficult in populations for which adequate norms are still being developed. Further research exploring use of “robust” norms or updated Hispanic/Latinx norms (e.g., NP-NUMBRS) when applying the Jak/Bondi method is needed.
A-5 Accelerated Parietal Cortex Thinning in Middle Aged Adults at Genetic Risk for Alzheimer’s Disease
Authors: Hayes Jasmeet P 
Published: August 2022

Abstract
Objective: The objective of this study was to identify biomarkers of progressive cortical decline during early middle-age, a time when early intervention could target preclinical ad neurodegeneration. We hypothesized that genetic risk for ad would be associated with cortical thinning in areas of the brain that are the first to reflect ad pathology, including the medial temporal lobes and parietal cortex. In addition, we hypothesized that tau and Aβ would be associated with cortical thinning in ad-vulnerable brain regions.
Method: Participants were 155 post-9/11 Veterans from the Translational Research Center for TBI and Stress Disorders prospective longitudinal cohort, an ongoing study at the VA Boston Healthcare System. Longitudinal change in cortical thickness was calculated as an annualized measure of the symmetrized percent change. Moderation models examined the interaction between ad PRS and plasma-based biomarker (t-tau or Aβ 42/40 ratio) on annual percent brain change.
Results: Higher ad PRS was associated with cortical thinning in a right-hemisphere inferior parietal cortex cluster that included the supramarginal gyrus (peak voxel 59.73, −37.81, 22.74) and angular gyrus. Moderation analyses revealed a significant genetic by t-tau interaction (β = −0.266, p = 0.006).
Conclusion: The current study revealed that genetic risk for ad and concentration of tau are associated with accelerated change in the parietal cortex, an area that has long been associated with early changes due to ad. The results underscore the importance of the parietal cortex in the identification of higher risk for neurodegeneration, decades prior to the onset of ad.
A-6 Pediatric Cerebral Cavernous Malformation, Type 1 (CCM1): Cognitive and Psychosocial Functioning, The Role of Neuropsychology, and Emerging Clinical Care Guidelines
Authors: Petranovich Christine , Campbell Richard , Gill Darbi , Hart Blaine , Morrison Leslie , Wilson Kevin 
Published: August 2022

Abstract
Objective: CCM1 is a rare condition that confers risk for negative neurological sequelae, including hemorrhage, seizures, and chronic headache. This study examines cognitive and psychosocial functioning in pediatric patients with CCM1 and describes emerging clinical care guidelines.
Method: Twenty-two children and adolescents with CCM-1 and 7 non-affected relatives participated in this cross-sectional pilot study. Cognitive testing and behavior and emotion questionnaires were completed. A subset of participants with CCM1 (n = 11) had repeat brain MRI (average 4.89 years between scans).
Results: Patients with CCM1 and their non-affected relatives did not differ on the NIH Toolbox Fluid and Crystallized composites (p &gt; 0.05). Processing speed also did not significantly differ, although both group means were below average normatively (NIH Toolbox Pattern Comparison T-score; CCM1 = 31.50 [12.02], non-affected relatives = 37.57 [14.58]). In the subgroup with repeat imaging, slower processing speed was associated with an increase in large lesions (p = 0.03) and with younger age at CCM1 diagnosis (p = 0.04). Self- and parent-reported internalizing problems and parent-reported externalizing problems did not differ between groups (p &gt; 05). In the CCM1 group, patient-reported disengaged coping was associated with more internalizing problems (p = 0.03).
Conclusions: Neuropsychological evaluation is an important component of long-term, multi-disciplinary care for pediatric patients with CCM1, particularly if lesions are progressive. The pilot sample was overall well-adjusted behaviorally and emotionally. The use of disengaged coping strategies was associated with more internalizing symptoms and coping may be a key modifiable risk factor in this population. Psychosocial monitoring may therefore be warranted.