bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental investigations on magnetic pulse crimping of copper lug
Authors: Ali Naushad , Sharma Surender Kumar , Chebolu Rohinikumar , Nallu Ramanaiah , Sharma Archana 
Published: March 2023

Abstract
One of the most complicated issues in the production of electronic circuit boards, vehicles, aircraft, satellite, and communication components is the crimping of electrical wires to produce a secure connection. Furthermore, terminal crimping is crucial to the safe transmission of electricity; improper crimping causes difficulties like overheating of the plug, power loss, arcing, and mechanical connection failure. Magnetic pulse crimping has the ability to effectively address these difficulties. Magnetic pulse crimping is a non-contact technique creating a uniform pressure without any tool marks on lugs. This technique has better compression of conducting metal wires strands inside the lug and also has less voids compared to conventional mechanical crimping techniques. In this technique the pulsed magnetic field is generated inside the electromagnetic coil by the discharge of capacitor bank current. This magnetic field applies uniform pressure across the circumference of lug and crimp it with cable. 120 sq mm copper lug is magnetic pulse crimped with copper wire at 20 T. Significant improvements in leak rate in magnetically crimped lugs is seem compared to mechanically crimped 120 sq mm copper lugs. This technique also reduces the contact resistance and ultimately the temperature during operation in electrical system.
Interaction measures in a three input integrated DC-DC converter
Authors: Manogna M , Reddy B Amarendra , Padma K 
Published: March 2023

Abstract
For the Three-Input Integrated Dc-Dc (TIID) Converter, due to integrated structure and presence of common elements, each controlling input variable affects the three controlled output variables, and gives rise to interactions which make controlling difficult. Thus, to know the behavior of the converter and also to design the controller for three-input integrated dc-dc converter, it is necessary to quantify the interactions beforehand. This quantification helps to address pairing problem of integrated converter. Interactions of this integrated dc-dc converter are quantified using dc gain based and energy-based interaction measures. These are Relative Gain Array (RGA), Participation Matrix (PM), Hankel Interaction Index Array (HIIA), and H2 Norm-based Interaction Array (H2NIA). To quantify these interactions, a three-input dc-dc converter of 400 W, 24 V-30 V-36 V to 48 V is considered and the interactions are quantified in the MATLAB environment. The Hardware In Loop (HIL) environment of the OPAL RT simulator OP4510 is used to obtain the experimental results.
Multi-impact response of CR4 mild steel: characterising the transition from absorption to failure
Authors: Thawani B , Batchelor T , Painter J , Hazael R , Critchley R 
Published: March 2023

Abstract
Single impact perforation shots are well understood for various target materials and different shaped projectiles. Although considered a rare case, localised multi-impacts are not well understood as they involve both perforating and non-perforating impacts on the target. The lack of understanding of non-perforating impact on metallic materials makes it tough to predict the change in the material’s mechanical performance. Given the widespread use of metallic materials for protective applications, it is important to understand the material response when subject to multiple impacts. To determine the effect of a non-perforating shot on CR4 mild steel and establish a minimum energy impact that will define the transition point whereby the metal can no longer absorb energy a series of impact experiments were conducted. Results show a subsequent perforation event occurs at a lower than the experimentally determined perforation velocity. Results suggest that there could be a direct correlation between the material thickness and the critical crater depth (the depth of crater required to affect the materials ability to absorb energy, the measure of materials performance). As the crater depth increased from 3 mm to 8.5 mm for the first shot, the energy absorption of the steel plate reduced by 25%. This allowed the residual performance for CR4 mild steel to be quantified for a known impact crater, giving a 7% performance loss for every millimetre the critical crater depth grows beyond 3 mm until the point of failure.
Novel heuristic-based hybrid ResNeXt with recurrent neural network to handle multi class classification of sentiment analysis
Authors: Krosuri Lakshmi Revathi , Aravapalli Rama Satish 
Published: March 2023

Abstract
Present-day, interdisciplinary research is increasing in social network-related applications, and it is a daily routine activity in every human life. So, sentiment analysis (SA) based on opinion mining is the most sophisticated concept in the well-known social network environment. Different machine learning methods were implemented to extract different text label features in SA, and all of those methods can detect whether a given text is positive or negative based on the text features. Analysis of sentiment has been suffering from inaccuracies while using machine learning and sentiment-based lexical methods dependent on domain-specific problems. Multi-class SA is an expensive task where memory, label samples, and other parameters are insufficient. So, we propose and implement a novel hybrid model which is a combination of ResNeXt and recurrent neural framework (NH-ResNeXt-RNF) to explore multi-class sentiment from textual features. This framework investigates the polarity of words connected to a specific domain across the entire dataset and eliminates noisy data in an unsupervised manner using pre-processing. Optimization is required to perform efficient multi-class classification to reduce the effort associated with annotation for multi-class SA via unsupervised learning. The proposed model performance is evaluated on two data sets namely: Amazon and Twitter. We increase the accuracy of the sentiment of polarity on each sentence present in the data set. Experimental results of the proposed approach give better and more efficient multi-class (positive, negative, very positive, neutral and highly negative) domain-specific sentiment than traditional approaches related to supervised, semi-supervised, and unsupervised domains. The proposed hybrid model accuracy is 96.5% and 95.37% for Amazon and Twitter datasets respectively.
Quaternion-based machine learning on topological quantum systems
Authors: Lin Min-Ruei , Li Wan-Ju , Huang Shin-Ming 
Published: March 2023

Abstract
Topological phase classifications have been intensively studied via machine-learning techniques where different forms of the training data are proposed in order to maximize the information extracted from the systems of interests. Due to the complexity in quantum physics, advanced mathematical architecture should be considered in designing machines. In this work, we incorporate quaternion algebras into data analysis either in the frame of supervised and unsupervised learning to classify two-dimensional Chern insulators. For the unsupervised-learning aspect, we apply the principal component analysis on the quaternion-transformed eigenstates to distinguish topological phases. For the supervised-learning aspect, we construct our machine by adding one quaternion convolutional layer on top of a conventional convolutional neural network. The machine takes quaternion-transformed configurations as inputs and successfully classify all distinct topological phases, even for those states that have different distributions from those states seen by the machine during the training process. Our work demonstrates the power of quaternion algebras on extracting crucial features from the targeted data and the advantages of quaternion-based neural networks than conventional ones in the tasks of topological phase classifications.
Multiresolution equivariant graph variational autoencoder
Authors: Hy Truong Son , Kondor Risi 
Published: March 2023

Abstract
In this paper, we propose Multiresolution Equivariant Graph Variational Autoencoders (MGVAE), the first hierarchical generative model to learn and generate graphs in a multiresolution and equivariant manner. At each resolution level, MGVAE employs higher order message passing to encode the graph while learning to partition it into mutually exclusive clusters and coarsening into a lower resolution that eventually creates a hierarchy of latent distributions. MGVAE then constructs a hierarchical generative model to variationally decode into a hierarchy of coarsened graphs. Importantly, our proposed framework is end-to-end permutation equivariant with respect to node ordering. MGVAE achieves competitive results with several generative tasks including general graph generation, molecular generation, unsupervised molecular representation learning to predict molecular properties, link prediction on citation graphs, and graph-based image generation. Our implementation is available at https://github.com/HyTruongSon/MGVAE.
The impact of the mySupport advance care planning intervention on family caregivers’ perceptions of decision-making and care for nursing home residents with dementia: pretest–posttest study in six countries
Authors: Bavelaar Laura , Visser Mandy , Walshe Catherine , Preston Nancy , Kaasalainen Sharon , Sussman Tamara , Cornally Nicola , Hartigan Irene , Loucka Martin , di Giulio Paola , Brazil Kevin , Achterberg Wilco P , van der Steen Jenny T 
Published: March 2023

AbstractBackgroundthe mySupport advance care planning intervention was originally developed and evaluated in Northern Ireland (UK). Family caregivers of nursing home residents with dementia received an educational booklet and a family care conference with a trained facilitator to discuss their relative’s future care.Objectivesto investigate whether upscaling the intervention adapted to local context and complemented by a question prompt list impacts family caregivers’ uncertainty in decision-making and their satisfaction with care across six countries. Second, to investigate whether mySupport affects residents’ hospitalisations and documented advance decisions.Designa pretest–posttest design.Settingin Canada, the Czech Republic, Ireland, Italy, the Netherlands and the UK, two nursing homes participated.Participantsin total, 88 family caregivers completed baseline, intervention and follow-up assessments.Methodsfamily caregivers’ scores on the Decisional Conflict Scale and Family Perceptions of Care Scale before and after the intervention were compared with linear mixed models. The number of documented advance decisions and residents’ hospitalisations was obtained via chart review or reported by nursing home staff and compared between baseline and follow-up with McNemar tests.Resultsfamily caregivers reported less decision-making uncertainty (−9.6, 95% confidence interval: −13.3, −6.0, P &lt; 0.001) and more positive perceptions of care (+11.4, 95% confidence interval: 7.8, 15.0; P &lt; 0.001) after the intervention. The number of advance decisions to refuse treatment was significantly higher after the intervention (21 vs 16); the number of other advance decisions or hospitalisations was unchanged.Conclusionsthe mySupport intervention may be impactful in countries beyond the original setting.
Impact of pharmacist-provided Medicare annual wellness visits and chronic care management on reimbursement and quality measures in a privately owned family medicine clinic
Authors: Mack Keri , Henneman Amy , Snyder Tara 
Published: March 2023

Abstract

Purpose
Improvement in patient outcomes from collaboration between pharmacists and physicians in ambulatory clinics has been well documented. Barriers to payment have made widespread growth of these collaborations slow. Medicare annual wellness visits (AWVs) and chronic care management (CCM) provide an opportunity for pharmacist-physician collaborations that are directly revenue generating. The objective of this study was to evaluate the impact of pharmacist-led AWVs and CCM on reimbursement and quality measures in a private family medicine clinic.

Methods
This was a retrospective observational study in which the rate of reimbursement for AWVs and CCM was compared before and after implementation of pharmacist-provided services. Claims data were reviewed for Current Procedural Terminology codes and reimbursement applicable to AWVs and CCM. Secondary outcomes included the total number of AWV and CCM appointments, Healthcare Effectiveness Data and Information Set (HEDIS) measure completion rates, and average change in quality ratings. Outcomes were analyzed utilizing descriptive statistics.

Results
Reimbursement from AWVs increased by $25,807.21 in 2018 and $26,410.01 in 2019 compared to 2017. Reimbursement from CCM increased by $16,664.29 in 2018 and $5,698.85 in 2019. In 2017, 228 AWVs and 5 CCM encounters were completed. After implementation of pharmacist services, the number of CCM encounters increased to 362 in 2018 and 152 in 2019 and the number of AWVs totaled 236 and 267, respectively. Completed HEDIS measures and star ratings increased during the study.

Conclusion
Pharmacist provision of AWVs and CCM addressed a gap in care by increasing the number of patients who received these services while also increasing reimbursement in a privately owned family medicine clinic.
Global change impacts on cacti (Cactaceae): current threats, challenges and conservation solutions
Authors: Hultine Kevin R , Hernández-Hernández Tania , Williams David G , Albeke Shannon E , Tran Newton , Puente Raul , Larios Eugenio 
Published: March 2023

AbstractBackgroundThe plant family Cactaceae provides some of the most striking examples of adaptive evolution, expressing undeniably the most spectacular New World radiation of succulent plants distributed across arid and semi-arid regions of the Americas. Cacti are widely regarded for their cultural, economic and ecological value, yet they are also recognized as one of the most threatened and endangered taxonomic groups on the planet.ScopeThis paper reviews current threats to species of cacti that have distributions in arid to semi-arid subtropical regions. Our review focuses primarily on four global change forces: (1) increases in atmospheric CO2 concentrations; (2) increases in mean annual temperatures and heat waves; (3) increases in the duration, frequency and intensity of droughts; and (4) and increases in competition and wildfire frequency from invasion by non-native species. We provide a broad range of potential priorities and solutions for stemming the extinction risk of cacti species and populations.ConclusionsMitigating ongoing and emerging threats to cacti will require not only strong policy initiatives and international cooperation, but also new and creative approaches to conservation. These approaches include determining species at risk from climate extremes, enhancing habitat quality after disturbance, approaches and opportunities for ex situ conservation and restoration, and the potential use of forensic tools for identifying plants that have been removed illegally from the wild and sold on open markets.
Variants in ATP5F1B are associated with dominantly inherited dystonia
Authors: Nasca Alessia , Mencacci Niccolò E , Invernizzi Federica , Zech Michael , Keller Sarmiento Ignacio J , Legati Andrea , Frascarelli Chiara , Bustos Bernabe I , Romito Luigi M , Krainc Dimitri , Winkelmann Juliane , Carecchio Miryam , Nardocci Nardo , Zorzi Giovanna , Prokisch Holger , Lubbe Steven J , Garavaglia Barbara , Ghezzi Daniele 
Published: March 2023

Abstract
ATP5F1B is a subunit of the mitochondrial ATP synthase or complex V of the mitochondrial respiratory chain. Pathogenic variants in nuclear genes encoding assembly factors or structural subunits are associated with complex V deficiency, typically characterized by autosomal recessive inheritance and multisystem phenotypes. Movement disorders have been described in a subset of cases carrying autosomal dominant variants in structural subunits genes ATP5F1A and ATP5MC3.
Here, we report the identification of two different ATP5F1B missense variants (c.1000A&gt;C; p.Thr334Pro and c.1445T&gt;C; p.Val482Ala) segregating with early-onset isolated dystonia in two families, both with autosomal dominant mode of inheritance and incomplete penetrance. Functional studies in mutant fibroblasts revealed no decrease of ATP5F1B protein amount but severe reduction of complex V activity and impaired mitochondrial membrane potential, suggesting a dominant-negative effect.
In conclusion, our study describes a new candidate gene associated with isolated dystonia and confirms that heterozygous variants in genes encoding subunits of the mitochondrial ATP synthase may cause autosomal dominant isolated dystonia with incomplete penetrance, likely through a dominant-negative mechanism.
Yield and Efficiency of a Population-Based Mass Tuberculosis Screening Intervention Among Persons With Diabetes in Jiangsu Province, China
Authors: Liu Qiao , You Nannan , Wen Juan , Wang Jianming , Ge Yang , Shen Ye , Ding Xiaoyan , Lu Peng , Chen Cheng , Zhu Baoli , Zhu Limei , Lu Wei , Martinez Leonardo 
Published: March 2023

Abstract

Background
The evidence-base for mass tuberculosis screening among persons with diabetes (PWD) is poor. We evaluated the yield and costs of mass screening among PWD in eastern China.

Methods
We included individuals with type 2 diabetes from 38 townships in Jiangsu Province. Screening comprised of physical examinations, symptom screening, and chest X-rays; smear and culture testing were performed through clinical triage. We assessed the yield and number needed to screen (NNS) to detect 1 tuberculosis case among all PWD, those with symptoms, and with suggestive chest X-rays. Unit costing was collected to estimate screening costs and to calculate cost per case detected. We performed a systematic review of other mass tuberculosis screening programs concentrated on PWD.

Results
Of 89 549 screened PWD, 160 were diagnosed with tuberculosis (179 cases per 100 000 persons; 95% confidence interval [CI]: 153–205). The NNS was 560 (95% CI: 513–606), 248 (95% CI: 217–279), and 36 (95% CI: 24–48) among all participants, with abnormal chest X-rays, and symptoms. The cost per case was high overall (US$13 930) but lower with symptoms (US$1037) and high fasting blood glucose levels (US$6807). From systematic review, the pooled NNS to detect one case among all PWD (regardless of symptoms or chest X-ray results) in high- versus low-burden settings was 93 (95% CI: 70–141) versus 395 (95% CI: 283–649).

Conclusions
A mass tuberculosis screening program focused on PWD was feasible however, the overall yield was low and not cost-efficient. Risk-stratified approaches may be practical among PWD in low- and medium tuberculosis burden settings.
Myocardial oedema contributes to interstitial expansion and associates with mechanical and electrocardiographic changes in takotsubo syndrome: a CMR T1 and T2 mapping study
Authors: Arcari Luca , Camastra Giovanni , Ciolina Federica , Limite Luca Rosario , Danti Massimiliano , Sclafani Matteo , Ansalone Gerardo , Musumeci Maria Beatrice , Nagel Eike , Puntmann Valentina , Sbarbati Stefano , Cacciotti Luca 
Published: March 2023

Abstract

Aims
myocardial oedema is largely represented in takotsubo syndrome (TTS) and may contribute to alter the myocardium morphology and function. The aim of the study is to describe relationships between oedema, mechanical, and electrical abnormalities in TTS

Methods and results
the study included n = 32 hospitalized TTS patients and n = 23 controls. Cardiac magnetic resonance (CMR) with tissue mapping and feature tracking was performed with concomitant 12-lead electrocardiogram (ECG) recording. Mean age of TTS was 72 ± 12 years old, 94% women. Compared with controls, patients had higher left ventricular (LV) mass, worse systolic function, higher septal native T1 (1116 ± 73 msec vs. 970 ± 23 msec, P &lt; 0.001), T2 (56 ± 5 msec vs. 46 ± 2 msec, P &lt; 0.001), and extracellular volume (ECV) fraction (32 ± 5% vs. 24 ± 1%, P &lt; 0.001). TTS patients had higher apicobasal gradient of T2 values (12 ± 6 msec vs. 2 ± 6 msec, P &lt; 0.001); basal LV wall displayed higher native T1, T2, and ECV (all P &lt; 0.002) but similar circumferential strain against controls (−23 ± 3% vs. −24 ± 4%, P = 0.351). In the TTS cohort, septal T2 values showed significant correlations with native T1 (r = 0.609, P &lt; 0.001), ECV (r = 0.689, P &lt; 0.001), left ventricular ejection fraction (r = −0.459, P = 0.008) and aVR voltage (r = −0.478, P = 0.009). Negative T-wave voltage and QTc length correlated with apicobasal T2 mapping gradient (r = 0.499, P = 0.007 and r = 0.372, P = 0.047, respectively) but not with other tissue mapping measurements.

Conclusions
CMR T1 and T2 mapping demonstrated increased myocardial water content conditioning interstitial expansion in acute TTS, detected even outside areas of abnormal wall motion. Oedema burden and distribution associated with mechanical and electrocardiographic changes, making it a potential prognostic marker and therapeutic target in TTS.
Post-Bentall procedure ‘pseudo’ pulmonary embolism, cardiac tamponade in disguise: a case report
Authors: Kuncoro Ario Soeryo , Wijaya Ray , Wartono Dicky Aligeri , Adiarto Suko 
Published: March 2023

AbstractBackgroundPost-operative cardiac complications require rapid evaluation, which may be hindered by various challenges. Sudden shortness of breath with persisting haemodynamic failure after cardiac procedure is often associated with cases of pulmonary embolism or cardiac tamponade that have contradicting therapies. Anticoagulant therapy is the treatment of choice for pulmonary embolism; however, it could worsen pericardial effusion where bleeding control and clot evacuation are the mainstays of treatment. In this study, we present a case of late cardiac complication due to cardiac tamponade mimicking signs of pulmonary embolism.Case summaryA 45-year-old male with aortic dissection DeBakey type-II, 7 day post-Bentall procedure, presented with sudden shortness of breath and persistent shock despite therapy. Initial assessment directed towards pulmonary embolism was supported by hallmark imaging signs from X-ray and transthoracic echocardiography evaluation. However, computed tomography scan results were suggestive of cardiac tamponade mainly accumulating at the right side of the heart, compressing the pulmonary artery and vena cava confirmed by transoesophageal echocardiography, thus mimicking the findings of pulmonary embolism. After clot evacuation procedure, the patient improved clinically and was discharged the following week.DiscussionIn this study, we highlight a case of cardiac tamponade with classical findings of pulmonary embolism after an aortic replacement procedure. Physicians should carefully analyse a patient’s clinical history, physical, and supporting examinations to direct and change the course of therapy accordingly, as these two complications have opposite therapy principles and may exacerbate the patient’s condition.