bluuebunny/crossref_metadata_2025_split huggingface dataset:
Learning social navigation from demonstrations with conditional neural processes
Authors: Yildirim Yigit , Ugur Emre 
Published: April 2023

Abstract
Sociability is essential for modern robots to increase their acceptability in human environments. Traditional
techniques use manually engineered utility functions inspired by observing pedestrian behaviors to achieve social navigation.
However, social aspects of navigation are diverse, changing across different types of environments, societies, and population
densities, making it unrealistic to use hand-crafted techniques in each domain. This paper presents a data-driven navigation
architecture that uses state-of-the-art neural architectures, namely Conditional Neural Processes, to learn global and local
controllers of the mobile robot from observations. Additionally, we leverage a state-of-the-art, deep prediction mechanism to
detect situations not similar to the trained ones, where reactive controllers step in to ensure safe navigation. Our results
demonstrate that the proposed framework can successfully carry out navigation tasks regarding social norms in the data. Further,
we showed that our system produces fewer personal-zone violations, causing less discomfort.
Generic saturation-induced phase-error correction algorithm for phase-measuring profilometry
Authors: Wu Zebo , Lv Na , Tao Wei , Zhao Hui 
Published: April 2023

Abstract
Intensity saturation causes partial incorrect intensities in captured images, leading to obvious phase errors in high-dynamic-range phase-measuring profilometry. Most existing methods require numerous projected patterns or additional hardware equipment to retrieve the three-dimensional shape. This paper proposes a comprehensive saturation-induced phase-error correction method by combining an average-phase compensation method, applying four-step phase-shifting (PS) patterns, with a phase repair method employing a total variation minimization (TVM) model. The periodic characteristic of the saturation-induced phase error is analyzed. The phase error can be efficiently compensated by averaging the initial and auxiliary phase, which is calculated utilizing a set of PS patterns with a phase offset of

π

/4. Furthermore, a judgment condition is provided to detect invalid points in overexposed shiny areas where the initial calculated phases are wrong. The corrected phases are repaired utilizing the TVM model from the compensated phase information surrounding invalid points. Simulations and experiments show that the proposed method can simultaneously correct the phase in non-uniform, high-reflectivity scenes and shiny areas with high accuracy using relatively few images. The phase error is reduced by nearly 80%.
The trajectory monitoring method of hydrodynamic suspension bearing based on laser-ranging technology
Authors: Xing Guanying , Hong Tao , Xue Song , Ke Hanbing , Luo Xiaobing 
Published: April 2023

Abstract
Rotor trajectory monitoring, essential for the stability assessment and trouble diagnosis of rotating machines, has attracted extensive attention for a long time. Nevertheless, in the case of hydrodynamic suspension micropumps, whose rotating components are wrapped in motor windings with strong electromagnetic interference, it is challenging to monitor the trajectory of the rotor, and a contactless measurement scheme is yet to be developed. In this study, we proposed a promising approach to obtain the centre location of the rotor of a hydrodynamic suspension micropump based on laser displacement sensors and built a test bench. Through experiments at multiple rotating speeds, the rotor’s displacement and velocity variations in two orthogonal directions, as well as the trajectories of the rotor, were captured and analysed, making the evaluation of the rotor’s operational stability feasible. We reveal an improvement in suspension stability by increasing the rotating speed and elaborating on the corresponding mechanism. Simultaneously, the experimental results show that the proposed method can achieve less than 1.3% relative uncertainty. In this study, we allow for high-precision contactless anti-jamming rotor trajectory monitoring at the microscale and in electromagnetically variable situations.
Evaluation of cost-effective system designs for long axial field-of-view PET scanners
Authors: Surti Suleman , Werner Matthew E , Karp Joel S 
Published: April 2023

Abstract

Objective. Current commercial positron emission tomography (PET) scanners have excellent performance and diagnostic image quality primarily due to improvements in scanner sensitivity and time-of-flight (TOF) resolution. Recent years have seen the development of total-body PET scanners with longer axial field-of-view (AFOV) that increase sensitivity for single organ imaging, and also image more of the patient in a single bed position thereby enabling multi-organ dynamic imaging. While studies have shown significant capabilities of these systems, cost will be a major factor in their widespread adoption in the clinic. Here we evaluate alternative designs that achieve many advantages of long AFOV PET while utilizing cost-effective detector hardware. Approach. We utilize Monte Carlo simulations and clinically relevant lesion detectability metric to study the impact of scintillator type lutetium oxyorthosilicate or bismuth germanate (LSO or BGO), scintillator thickness (10–20 mm), and TOF resolution on resultant image quality in a 72 cm long scanner. Detector TOF resolution was varied based on current scanner performance, as well as expected future performance from detector designs that currently hold most promise for scaling into a scanner. Main results. Results indicate that BGO is competitive with LSO (both 20 mm thick) if we assume that it uses TOF (e.g. Cerenkov timing with 450 ps fwhm and Lorentzian distribution) and the LSO scanner has TOF resolution similar to the latest PMT-based scanners (∼500–650 ps). Alternatively, a system using 10 mm thick LSO with 150 ps TOF resolution can also provide similar performance. Both these alternative systems can provide cost savings (25%–33%) relative to a scanner using 20 mm LSO with ∼50% of effective sensitivity, but still 500%–700% higher than a conventional AFOV scanner. Significance. Our results have relevance to the development of long AFOV PET, where reduced cost of these alternative designs can provide wider accessibility for use in situations requiring imaging of multiple organs simultaneously.
Effect of geometric non-linearity and tip mass on the frequency bandwidth of a cantilever piezoelectric energy harvester under tip excitation
Authors: Upendra B , Panigrahi B , GR Sabareesh 
Published: April 2023

AbstractThe research community is investigating a variety of approaches to convert mechanical energies to useful electrical energy in order to fulfil the ever-increasing demand for energy and fulfil the requirements of the various sectors. In this regard, numerous contributions toward increasing the capacity and efficiency of the various energy harvesting techniques have been proposed in recent times; one such promising technology is piezoelectric-based vibration energy harvesting. In the present work, the effect of geometric nonlinearity and tip mass is investigated on the operational frequency range of a cantilever nonlinear piezoelectric energy harvester. The proposed mathematical model is based on an energy-based variational approach. The methodology is formulated for the piezoelectric patched cantilever beam and, eventually solved using an efficient numerical technique . An amplitude incremental iterative algorithm is used to solve the non-linear governing equations of motion for the proposed non-linear broadband harvester along with the experimental validation. Firstly, a parametric study is performed to determine the optimum piezoelectric patch dimensions. Subsequently, the attempt is made to increase the frequency bandwidth for optimum energy harvesting by taking advantage of geometrically non-linear behaviour. Additionally, a tip mass, appropriate for the excitation level, can be added to the harvester design to make it effective for lower excitation frequency. Increased frequency bandwidth for improved energy harvesting capacity with the hardening type nonlinearity and tip mass is meaningfully shown with the help of frequency-amplitude response. Furthermore, to interpret the efficacy of nonlinear harvesters in terms of frequency band-width, power spectral density plots with improved harvesting capability are presented and compared with the conventional linear vibration energy harvester.
Giant NLO response and ultraviolet transparency of superalakalis decorated C6O6Li6 complexes; a DFT perspective
Authors: Kosar Naveen , Zari Laraib , Ayub Khurshid , Gilani Mazhar Amjad , Mahmood Tariq 
Published: April 2023

Abstract
Materials having nonlinear optical (NLO) properties are the demand of optics and optoelectronics fields because of their widespread applications. Keeping in view the applications of NLO materials, some new superalkalis doped C6O6Li6 complexes are introduced in this study having remarkable NLO response. Thermodynamic stability of nonlinear optical materials (NLO) is prime requirement of experimentalists for practical applications. All the considered complexes have high thermodynamic stability. Furthermore, these superalkali doped complexes reveal fabulous electronic properties. Superalkalis shift their outer shell electrons towards the C6O6Li6 nanocluster, which act as diffuse excess electrons. The HOMO-LUMO gaps (H-L Egap) of superalkali doped complexes are effectively reduced due to shifting of electrons that reveals their conducting properties. NBO charge analysis confirmed electron charge transfer from superalkalis to C6O6Li6 surface. Linear and NLO properties of these complexes are estimated from first order polarizability (α
o) and hyperpolarizability (β
o) parameters. Among all complexes, C6O6Li6.K3O has the highest first hyperpolarizability (β
o = 6.02 × 105 au). TD-DFT analysis confirmed the ultraviolet transparency of doped complexes. Two level model is used to rationalize the trend of first hyperpolarizability and the internal factors responsible for the enhancement of NLO response.
A novel verifiable weighted threshold quantum secret sharing scheme
Authors: Dong Yumin , Luo Yi , Fu Yanying 
Published: April 2023

Abstract
Threshold quantum secret sharing is a cryptography technique for dividing and reconstructing secret information. The dealer shares a secret based on quantum mechanics principles, and a subset of participants cooperate to recover that secret. For example, in

k
,
n

quantum threshold scheme and

n
,
n

quantum threshold scheme, the former can only reconstruct the secret when at least k shares are collected. The latter requires all n shares to be collected to reconstruct the secret. However, in real scenarios, the priority of participant identities may vary. In order to meet the actual needs of participants with different rights, this paper proposes a

w
,
ω
,
n

quantum secret sharing (QSS) scheme. When the sum of participants’ weights w is greater than or equal to a threshold ω, they can cooperate to reconstruct the secret. In order to achieve this, this paper uses the entangled state of single particles and constructs a verifiable QSS scheme based on the Chinese remainder theorem. Significantly, in case of a dishonest participant, the dealer can delete the participant before recovering the secret to ensure the security of the communication. This scheme is more flexible than other threshold protocols. At the same time, it reduces the communication cost of the participants. In addition, security analysis shows that the scheme resists typical external and internal attacks.
From heterogeneous network to homogeneous network: the influence of structure on synergistic epidemic spreading
Authors: Lin Chang , Yan Zixiang , Gao Jian , Xiao Jinghua 
Published: April 2023

Abstract
Synergistic epidemic-like spreading phenomena in networked system occur in various forms in nature and human society. The networks’ structure characterized by its structural heterogeneity affects the synergistic spreading process dramatically. It was believed that the synergistic epidemic spreading follows a continuous transition on heterogeneous networks, but an explosive one on homogeneous networks. In this work, we adopt the model that interpolates between homogeneous and heterogeneous networks to generate a series of networks. By continuously changing the ratio of homogeneous structure α of the network, we numerically show that the interplay between the spreading transition and the structural heterogeneity of network is much more complicated. Although the explosive epidemic transition is likely to be hindered by structural heterogeneity, it could occur on completely heterogeneous network as long as the synergistic strength is sufficiently strong. The predictions of heterogeneous mean-field analysis agree with the numerical results, thus helping to understand the role of structural heterogeneity in affecting synergistic epidemic spreading.
Creation of waterproof, TLD probes for dose measurements to validate image-based radiopharmaceutical therapy dosimetry workflow
Authors: Adam David P , Hammer Clifford , Malyshev Julia Ziege , Culberson Wesley S , Bradshaw Tyler J , Grudzinski Joseph J , Harari Paul M , Bednarz Bryan P 
Published: April 2023

Abstract
Voxel-level dosimetry based on nuclear medicine images offers patient-specific personalization of radiopharmaceutical therapy (RPT) treatments. Clinical evidence is emerging demonstrating improvements in treatment precision in patients when voxel-level dosimetry is used compared to MIRD. Voxel-level dosimetry requires absolute quantification of activity concentrations in the patient, but images from SPECT/CT scanners are not quantitative and require calibration using nuclear medicine phantoms. While phantom studies can validate a scanner’s ability to recover activity concentrations, these studies provide only a surrogate for the true metric of interest: absorbed doses. Measurements using thermoluminescent dosimeters (TLDs) are a versatile and accurate method of measuring absorbed dose. In this work, a TLD probe was manufactured that can fit into currently available nuclear medicine phantoms for the measurement of absorbed dose of RPT agents. Next, 748 MBq of I-131 was administered to a 16 ml hollow source sphere placed in a 6.4 L Jaszczak phantom in addition to six TLD probes, each holding 4 TLD-100 1 × 1 × 1 mm TLD-100 (LiF:Mg,Ti) microcubes. The phantom then underwent a SPECT/CT scan in accordance with a standard SPECT/CT imaging protocol for I-131. The SPECT/CT images were then input into a Monte Carlo based RPT dosimetry platform named RAPID and a three dimensional dose distribution in the phantom was estimated. Additionally, a GEANT4 benchmarking scenario (denoted ‘idealized’) was created using a stylized representation of the phantom. There was good agreement for all six probes, the differences between measurement and RAPID ranged between −5.5% and 0.9%. The difference between the measured and the idealized GEANT4 scenario was calculated and ranged from −4.3% and −20.5%. This work demonstrates good agreement between TLD measurements and RAPID. In addition, it introduces a novel TLD probe that can be easily introduced into clinical nuclear medicine workflows to provide QA of image-based dosimetry for RPT treatments.
Liturgy and the Sublime
Authors: Wennemann Matthew 
Published: April 2023

Abstract
Experience of the sublime is most often discussed as a facet of the aesthetic experience of nature. In this paper, I argue that religious liturgy can be a source of sublimity and that experiences of the liturgically sublime are analogous to aesthetic experiences of nature and natural sublimity. Experiences of the liturgically sublime are not religious experiences, since the aesthetic experience of liturgy is not dependent upon any particular belief, such as belief in a deity, does not communicate specific information, and is fundamentally physical in its experience, since it is based upon sensory experiences of the physical environment. I conclude that, as aesthetic experiences of liturgy are similar in important ways to experiences of natural sublimity and can be fully appreciated by any attendant of a liturgy, so can anyone, regardless of belief set or religious background, experience and appreciate liturgical sublimity to the fullest degree.
Phenotypic and genotypic infidelity in B-lineage neoplasms, including transdifferentiation following targeted therapy: Report from the 2021 SH/EAHP Workshop
Authors: Goodlad John R , Xiao Wenbin , Amador Catalina , Cook James R , Happ Lanie , Thakkar Devang , Dave Sandeep , Dogan Ahmet , Duffield Amy , Nejati Reza , Ott German , Wasik Mariusz , Czader Magdalena 
Published: April 2023

Abstract

Objectives
Session 2 of the 2021 Society for Hematopathology and European Association for Haematopathology Workshop collected examples of lineage infidelity and transdifferentiation in B-lineage neoplasms, including after targeted therapy.

Methods
Twenty cases were submitted. Whole-exome sequencing and genome-wide RNA expression analysis were available on a limited subsample.

Results
A diagnosis of B-cell acute lymphoblastic leukemia (B-ALL) was rendered on at least 1 biopsy from 13 patients. There was 1 case of acute myeloid leukemia (AML); the remaining 6 cases were mature B-cell neoplasms. Targeted therapy was administered in 7 cases of B-ALL and 4 cases of mature B-cell neoplasms. Six cases of B-ALL underwent lineage switch to AML or mixed-phenotype acute leukemia at relapse, 5 of which had rearranged KMT2A. Changes in maturational state without lineage switch were observed in 2 cases. Examples of de novo aberrant T-cell antigen expression (n = 2) were seen among the mature B-cell lymphoma cohort, and their presence correlated with alterations in tumor cell gene expression patterns.

Conclusions
This cohort of cases enabled us to illustrate, discuss, and review current concepts of lineage switch and aberrant antigen expression in a variety of B-cell neoplasms and draw attention to the role targeted therapies may have in predisposing neoplasms to transdifferentiation as well as other, less expected changes in maturational status.
Invited Commentary: A Step Toward Safer and More Precise Management of Osteoarthritis Pain
Authors: Baker Joshua F 
Published: April 2023

AbstractIn this issue of the Journal, Wei et al. (Am J Epidemiol. 2023;192(9):1432–1448); demonstrate the modification of effect of nonselective nonsteroidal antiinflammatory drugs in the setting of aspirin use for the outcome of cardiovascular events. This study is distinctive in its aim to compare 2 similar therapies in the setting of 2 clinical scenarios (aspirin use vs. not) based on some mechanistic rationale. The use of an active comparator design with a prehypothesized evaluation of treatment heterogeneity can provide compelling evidence to support relevant clinical decisions for which clinical trial evidence is not likely or possible.
Scale-Up of Rifapentine and Isoniazid for Tuberculosis Prevention Among Household Contacts in 2 Urban Centers: An Effectiveness Assessment
Authors: Hussain Hamidah , Jaswal Maria , Farooq Saira , Safdar Nauman , Madhani Falak , Noorani Shehla , Shahbaz Sheikh Shumail , Salahuddin Naseem , Amanullah Farhana , Khowaja Saira , Manzar Shadab , Shah Jinsar Ali , Islam Zafar , Dahri Ali Akber , Shahzad Muddasser , Keshavjee Salmaan , Becerra Mercedes C , Khan Aamir J , Malik Amyn A 
Published: April 2023

Abstract

Background
Scaling up a shorter preventive regimen such as weekly isoniazid and rifapentine (3HP) for 3 months is a priority for tuberculosis (TB) preventive treatment (TPT). However, there are limited data on 3HP acceptability and completion from high-burden-TB countries.

Methods
We scaled up 3HP from 2018 to 2021 in 2 cities in Pakistan. Eligible participants were household contacts of persons diagnosed with TB disease. Participants were prescribed 3HP after ruling out TB disease. Treatment was self-administered. We analyzed the proportion who completed 3HP.

Results
In Karachi, we verbally screened 22 054 household contacts of all ages. Of these, 83% were clinically evaluated and 3% were diagnosed with TB. Of household contacts without TB disease, 59% initiated the 3HP regimen, of which 69% completed treatment. In Peshawar, we verbally screened 6389 household contacts of all ages. We evaluated 95% of household contacts, of whom 2% were diagnosed with TB disease. Among those without TB disease, 65% initiated 3HP, of which 93% completed. Factors associated with higher 3HP completion included residence in Peshawar (risk ratio [RR], 1.35 [95% confidence interval {CI}: 1.32–1.37]), index patient being a male (RR, 1.03 [95% CI: 1.01–1.05]), and index patient with extrapulmonary TB compared to bacteriologically positive pulmonary TB (RR, 1.10 [95% CI: 1.06–1.14]). The age of the index patient was inversely associated with completion.

Conclusions
We observed a high level of acceptance and completion of 3HP in programs implemented in 2 cities in Pakistan, with differences observed across the cities. These findings suggest that 3HP can be effectively scaled up in urban settings to improve the reach and impact of TPT.
A combinatorial approach implementing new database structures to facilitate practical data curation management of QTL, association, correlation and heritability data on trait variants
Authors: Hu Zhi-Liang , Park Carissa A , Reecy James M 
Published: April 2023

Abstract
A precise description of traits is essential in genetics and genomics studies to facilitate comparative genetics and meta-analyses. It is an ongoing challenge in research and production environments to unambiguously and consistently compare traits of interest from data collected under various conditions. Despite previous efforts to standardize trait nomenclature, it remains a challenge to fully and accurately capture trait nomenclature granularity in a way that ensures long-term data sustainability in terms of the data curation processes, data management logistics and the ability to make meaningful comparisons across studies. In the Animal Quantitative Trait Loci Database and the Animal Trait Correlation Database, we have recently introduced a new method to extend livestock trait ontologies by using trait modifiers and qualifiers to define traits that differ slightly in how they are measured, examined or combined with other traits or factors. Here, we describe the implementation of a system in which the extended trait data, with modifiers, are managed at the experiment level as ‘trait variants’. This has helped us to streamline the management and curation of such trait information in our database environment.
Database URL https://www.animalgenome.org/PGNET/
Old and new therapeutic solutions in the treatment of hypertrophic cardiomyopathy
Authors: Autore Camillo , Francia Pietro , Tini Giacomo , Musumeci Beatrice 
Published: April 2023

Abstract
Hypertrophic cardiomyopathy (HCM) is a genetic disease of the myocardium that is relatively common in the general population, with an autosomal dominant inheritance as a genetic basis. Clinical and natural history pathways can be very different among patients with HCM. Treatment strategies have made very important advances in the last two decades, especially reducing cases of sudden death through effective risk stratification and the use of implantable defibrillators. Heart failure has become the predominant cause of morbidity and mortality in patients with HCM, being responsible for as many as 60% of disease-related deaths. HCM is most often characterized by the presence of left ventricular outflow tract (LVOT) obstruction, and this obstruction is the most frequent cause of impaired exercise tolerance in HCM and a strong independent predictor of heart failure progression and mortality. The different treatment strategies of LVOT obstruction in HCM are discussed below: surgical, invasive, and the more recent pharmacological.