bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hybrid structural electronics fabrication by combined SLA and metal printing
Authors: Levy Asaf , Bernstein Toker Gil , Chan Darius Jun Loung , Ermak Oleg , Peled Itay , Atar Nurit , Gouzman Irina , Zenou Michael , Kotler Zvi , Gelbstein Yaniv 
Published: March 2023

Abstract
A method is described where 3D electronic devices are fabricated using a hybrid printing approach which combines several steps: Top illumination stereolithography; laser induced forward transfer (LIFT) printing of conductive materials; placement of active and passive components and their electrical interconnection by a non-contact, metal LIFT process. By applying this approach, free-form 3D functional electronic structures could be manufactured by a single hybrid tool. The adhesion of LIFT printed metal droplets onto various organic substrates of interest for device fabrication was investigated. The results suggest two possible approaches for improved adhesion by either printing at elevated surface temperature or surface roughening by laser pre-treatment. The resulting track resistivities were found to be in the range of ×5–10 higher than bulk copper resistivity. We present several exemplary printed devices with different complexities and functionalities as demonstrators of the proposed hybrid technology.
Novel Fiducial Fiber Scanning Measurement Method Based on a Polar Coordinate System for LAMOST
Authors: Zhang Zhen , Chen Guifeng , Liu Wenqi , Zhu Mengjie , Wang Menghao , Gu Yonggang , Zhai Chao 
Published: March 2023

Abstract
The multiobject fiber-fed spectrograph is the core scientific instrument for large-scale spectroscopic surveys. For closed-loop control of fiber positioning, fiber metrology systems are implemented in numerous fiber-fed spectrographs. The position accuracy of the fiducial fiber in the focal plate directly affects the performance of the fiber metrology system. However, there are currently no suitable methods and devices for measuring the fiducial fibers with high accuracy in the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST). To solve this problem, this study proposed a novel online scanning measurement method for fiducial fibers in which a scanning camera was set up in front of the focal plate, and the rotation and translation movements of the focal plate were combined to set a polar coordinate measurement system. First, the pole and polar axis of the polar coordinate frame were determined, and the compensation values of the polar radius and angle of the polar coordinate of the fiducial fibers were solved in the field of view of the scanning camera. A prototype measurement platform was set up to verify the feasibility and scientific validity of the method. Experiment results show that the polar radius accuracy of the proposed method met the measurement requirements. The X–Y measurement accuracy can be further improved when a higher-precision rotary stage is adopted. Thus, the difficulties in online accurate measurement for fiducial fibers can be tackled by the proposed method with good operability in LAMOST.
Production and decay of polarized hyperon-antihyperon pairs*
Authors: Schönning Karin , Batozskaya Varvara , Adlarson Patrik , Zhou 周 Xiaorong 小蓉 
Published: March 2023

Abstract
Polarized hyperon-antihyperon pairs shed light on various unresolved puzzles in contemporary physics: How the strong interaction confines quarks into hadrons, how accurately the Standard Model describes microcosmos and even why our universe consists of so much more matter than antimatter. Thanks to their weak, parity violating decays, hyperons reveal their spin properties. This can be exploited e.g. the decomposition of the electromagnetic structure of hyperons, precision tests of flavour symmetry and searches for CP violation. At the BESIII experiment at BEPC-II, Beijing, China, hyperon-antihyperon pairs can be produced in abundance. Recently collected large data samples have triggered the development of new methods that provide unprecedented precision and a plethora of new results have emerged. When applied at future high-intensity facilities like PANDA and STCF, precision physics will be taken to a new level which can contribute to the solution to the aforementioned puzzles.
Examination of machine learning for assessing physical effects: Learning the relativistic continuum mass table with kernel ridge regression*
Authors: Du Xiao-Kai , Guo Peng , Wu Xin-Hui , Zhang Shuang-Quan 
Published: March 2023

Abstract
The kernel ridge regression (KRR) method and its extension with odd-even effects (KRRoe) are used to learn the nuclear mass table obtained by the relativistic continuum Hartree-Bogoliubov theory. With respect to the binding energies of 9035 nuclei, the KRR method achieves a root-mean-square deviation of 0.96 MeV, and the KRRoe method remarkably reduces the deviation to 0.17 MeV. By investigating the shell effects, one-nucleon and two-nucleon separation energies, odd-even mass differences, and empirical proton-neutron interactions extracted from the learned binding energies, the ability of the machine learning tool to grasp the known physics is discussed. It is found that the shell effects, evolutions of nucleon separation energies, and empirical proton-neutron interactions are well reproduced by both the KRR and KRRoe methods, although the odd-even mass differences can only be reproduced by the KRRoe method.
Doubly charmed dibaryon states*
Authors: Liu Zhe , An Hong-Tao , Liu Zhan-Wei , Liu Xiang 
Published: March 2023

Abstract
In this work, we study the doubly charmed dibaryon states with the

(

) configuration. The mass spectra of doubly charmed dibaryon states are obtained systematically within the chromomagnetic interaction model. In addition to the mass spectrum analysis, we illustrate their two-body strong decay behaviours. Our results suggest that there may be narrow states or even stable states that cannot decay through the strong interaction. We hope that our results will provide valuable information for further experimental searches for doubly charmed dibaryon states.
Microhardness and tensile strength of electrochemically synthesized nickel-cobalt binary alloy sheets exfoliated from a dumbbell-shaped titanium cathode
Authors: Saeki Ryusei , Doi Tomomi , Hayashida Masamitsu , Ohgai Takeshi 
Published: March 2023

Abstract
Nanocrystalline nickel–cobalt (Ni–Co) binary alloy sheets were fabricated through electroforming in an acidic aqueous bath using exfoliation from a metallic titanium cathode. Cobalt content in Ni–Co alloy sheets ranged from 28.8 at% to 72.0 at% depending on experimental parameters, such as cathodic overpotential and bath composition. The surface roughness (R
a) of the electroformed alloy sheets significantly decreased down to 1.5 μm as saccharin sodium dihydrate was added as an additive to the acidic aqueous solution bath. X-ray diffraction profiles and transmission electron microscopy images indicated that the electroformed Ni–Co alloy sheets have a nanocrystalline structure (grain size ≈ 30 nm). The lattice constant of the electroformed Ni–Co alloy sheets increased with an increase in cobalt content (i.e. solute atom concentration). The mechanical properties were significantly improved because of the synergistic effects of crystal grain refinement and solid solution strengthening. The microhardness and tensile strength of the electroformed Ni–Co alloy sheets reached 609 kgf mm−2 and 1757 MPa (X
Co = 49.9 at%), respectively. The tensile strength of the electroformed Ni–Co alloy sheets in this study significantly exceeded that of solidified Ni–Co alloys (approximately 370 MPa). Therefore, this study offers a technique to enhance the mechanical properties of electroformed Ni–Co alloy sheets.
Unveiling light collection and pump enhancement from quantum wells with plasmonic metasurfaces using power dependent measurements
Authors: Abdelkhalik Mohamed S , Vaskin Aleksandr , López Toni , Abass Aimi , Gómez Rivas Jaime 
Published: March 2023

Abstract
Low light extraction efficiency (LEE) is the greatest limiting factor for the brightness of reduced-size light-emitting diodes (LEDs) as it limits their emission intensity. In addition, LEDs have a Lambertian emission, which requires secondary optics to control the emission directionality. Plasmonic metasurfaces can introduce a way of manipulating the generated light from LEDs to enhance their LEE and steer the emitted light by reshaping the far-field emission. Here, we fabricate resonant plasmonic metasurfaces on top of a typical blue emitting wafer consisting of InGaN/gallium nitride quantum wells developed for commercial LED devices. The metasurface is separated from the InGaN quantum wells by p-GaN and indium-tin-oxide (ITO) layers with a cumulative thickness of 110 nm. Since this distance value is close to the emission wavelength in the corresponding medium, enhanced near-fields of localized plasmonic resonances do not reach the active region. Despite this, we observe a strong influence of the metasurfaces on the far-field photoluminescence emission from the quantum wells as demonstrated by Fourier imaging. Power-dependent excitation measurements of the samples allow us to retrieve the pump and light collection enhancement factors provided by the plasmonic metasurfaces. We demonstrate that the plasmonic metasurfaces can provide a pump enhancement factor of up to 4.1 and a collection enhancement factor of up to 3.2. We have also performed simulations based on the reciprocity principle and achieved a good qualitative agreement with the experimental results.
Recent developments in 2D materials for energy harvesting applications
Authors: Khandelwal Gaurav , Deswal Swati , Shakthivel Dhayalan , Dahiya Ravinder 
Published: March 2023

Abstract
The ever-increasing demand for energy as a result of the growing interest in applications, such as the Internet of Things and wearable systems, etc, calls for the development of self-sustained energy harvesting solutions. In this regard, 2D materials have sparked enormous interest recently, due to their outstanding properties, such as ultra-thin geometry, high electromechanical coupling, large surface area to volume ratio, tunable band gap, transparency and flexibility. This has given rise to noteworthy advancements in energy harvesters such as triboelectric nanogenerators (TENGs), piezoelectric nanogenerators (PENGs) and photovoltaics based on 2D materials. This review introduces the properties of different 2D materials including graphene, transition metal dichalcogenides, MXenes, black phosphorus, hexagonal boron nitride, metal-organic frameworks and covalent-organic frameworks. A detailed discussion of recent developments in 2D materials-based PENG, TENG and photovoltaic devices is included. The review also considers the performance enhancement mechanism and importance of 2D materials in energy harvesting. Finally, the challenges and future perspectives are laid out to present future research directions for the further development and extension of 2D materials-based energy harvesters.
Minimally invasiveversusopen pancreatic surgery: meta-analysis of randomized clinical trials
Authors: Pfister Matthias , Probst Pascal , Müller Philip C , Antony Pia , Klotz Rosa , Kalkum Eva , Merz Daniela , Renzulli Pietro , Hauswirth Fabian , Muller Markus K 
Published: March 2023

AbstractBackgroundWidespread implementation of the minimally invasive technique in pancreatic surgery has proven to be challenging. The aim of this study was to compare the perioperative outcomes of minimally invasive (laparoscopic and robotic) pancreatic surgery with open pancreatic surgery using data obtained from RCTs.MethodsA literature search was done using Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, and Web of Science; all available RCTs comparing minimally invasive pancreatic surgery and open pancreatic surgery in adults requiring elective distal pancreatectomy or partial pancreatoduodenectomy were included. Outcomes were mortality rate, general and pancreatic surgery specific morbidity rate, and length of hospital stay.ResultsSix RCTs with 984 patients were included; 99.0 per cent (486) of minimally invasive procedures were performed laparoscopically and 1.0 per cent (five) robotically. In minimally invasive pancreatic surgery, length of hospital stay (−1.3 days, −2 to −0.5, P = 0.001) and intraoperative blood loss (−137 ml, −182 to −92, P &lt; 0.001) were reduced. In the subgroup analysis, reduction in length of hospital stay was only present for minimally invasive distal pancreatectomy (−2 days, −2.3 to −1.7, P &lt; 0.001). A minimally invasive approach showed reductions in surgical site infections (OR 0.4, 0.1 to 0.96, P = 0.040) and intraoperative blood loss (−131 ml, −173 to −89, P &lt; 0.001) with a 75 min longer duration of surgery (42 to 108 min, P &lt; 0.001) only in partial pancreatoduodenectomy. No significant differences were found with regards to mortality rate and postoperative complications.ConclusionThis meta-analysis presents level 1 evidence of reduced length of hospital stay and intraoperative blood loss in minimally invasive pancreatic surgery compared with open pancreatic surgery. Morbidity rate and mortality rate were comparable, but longer duration of surgery in minimally invasive partial pancreatoduodenectomy hints that this technique in partial pancreatoduodenectomy is technically more challenging than in distal pancreatectomy.
Social networks of reintroduced Przewalski’s horses in the Great Gobi B Strictly Protected Area (Mongolia)
Authors: Bernátková Anna , Oyunsaikhan Ganbaatar , Šimek Jaroslav , Komárková Martina , Ceacero Francisco 
Published: March 2023

Abstract
Analyzing social networks is a powerful tool for understanding the ecology of social species. While most studies focus on the role of each group member, few compare groups with different characteristics. The current population of Przewalski’s horses Equus ferus przewalskii at the Great Gobi B Strictly Protected Area (Mongolia) includes groups of wild-born and captive-bred individuals with different experiences with the area (acclimatizing, long-term reintroduced, and wild-born), therefore serving as an ideal natural behavioral lab. We filmed 11 groups for 141.5 hours in summer 2018 (July), late spring 2019 (May, June), and autumn 2019 (September, October). Affiliative and agonistic interactions were recorded, and social networks were created. We tested the influence of origin, experience, season, sex, age, relative time belonging to the group, relatedness, and dominance rank on different network indices at the individual and group levels. We found that groups with greater experience in the area are generally better connected than members of the newly formed groups. However, these strong networks were created by wild-born individuals with very low interaction rates. On the contrary, inexperienced groups composed of captive-bred individuals displayed many interactions but created weak social networks. The results show a trend of behavioral transition from acclimatizing through long-term reintroduced to wild-born groups, supporting that the newly formed groups of released Przewalski’s horses need time to display the typical social behavior patterns of wild-born individuals. Long-term monitoring of released Przewalski’s horses is recommended to promote the success of this reintroduction program.
Left atrial strain analysis improves left ventricular filling pressures non-invasive estimation in the acute phase of Takotsubo syndrome
Authors: Iannaccone Giulia , Graziani Francesca , Del Buono Marco Giuseppe , Camilli Massimiliano , Lillo Rosa , Caffè Andrea , Moroni Francesco , La Vecchia Giulia , Pedicino Daniela , Sanna Tommaso , Trani Carlo , Lombardo Antonella , Lanza Gaetano Antonio , Massetti Massimo , Crea Filippo , Montone Rocco A 
Published: March 2023

Abstract

Aims
The aim of our study is to assess the ability of left atrial (LA) strain values to improve left ventricular and diastolic pressure (LVEDP) non-invasive estimation as compared with traditional echocardiographic indexes in the acute phase of Takotsubo syndrome (TTS) and to predict adverse in-hospital outcomes in this population.

Methods and results
Consecutive TTS patients were prospectively enrolled. Left ventricular and diastolic pressure was measured at the time of catheterization. Transthoracic echocardiography was performed within 48 h from hospital admission. In-hospital complications (acute heart failure, death from any cause, and life-threatening arrhythmias) were collected. A total of 62 patients were analysed (72.2 ± 10.1 years, female 80%) and in-hospital complications occurred in 25 (40.3%). Left ventricular and diastolic pressure mean value was 24.53 ± 7.92 mmHg. Left atrial reservoir and pump strain values presented higher correlation with LVEDP (r −0.859, P &lt; 0.001 and r −0.848, P &lt; 0.001, respectively) in comparison with E/e ′ ratio, left atrial volume index (LAVi), and tricuspid regurgitation (TR) peak velocity. In addition, at receiver-operating characteristic curve analysis, LA reservoir and pump strain resulted to be better predictors of LVEDP above the mean of our population [0.909 (95% CI 0.818–0.999, P &lt; 0.001) and 0.889 (95% CI 0.789–0.988, P &lt; 0.001)], respectively] as compared with E/e′ ratio, LAVi, and TR peak velocity.
Finally, LA reservoir strain resulted to be an independent predictor of worse in-hospital outcomes, together with LVEDP and left ventricular ejection fraction (all P &lt; 0.001).

Conclusion
In our study, lower LA reservoir and pump strain values were better predictors of LVEDP as compared with traditional echocardiographic indexes in the acute phase of TTS syndrome. Moreover, LA reservoir strain was an independent predictor of adverse in-hospital outcomes.
The efficacy of PCSK9 inhibitors on major cardiovascular events and lipid profile in patients with diabetes: a systematic review and meta-analysis of randomized controlled trials
Authors: Imbalzano Egidio , Ilardi Federica , Orlando Luana , Pintaudi Basilio , Savarese Gianluigi , Rosano Giuseppe 
Published: March 2023

ABSTRACT

Objective
To evaluate the specific effects of PCSK9 inhibitors (i.e. alirocumab and evolocumab) on major cardiovascular events (MACE) and lipid profile in patients with diabetes.

Methods and results
We conducted a systematic review of literature according to the PRISMA statement. A total of eight randomized control trials (RCTs) enrolling 20 651 patients with diabetes were included. The mean follow-up was 51 weeks. We included RCTs that had compared the subtilisin–kexin type 9 inhibitors (PCSK9i) alirocumab and evolocumab with placebo in subjects with hypercholesterolaemia and diabetes mellitus.
MACE occurred in 8.7% of patients with diabetes randomized to PCSK9i vs. 11.0% of those randomized to placebo. Thus, the use of alirocumab or evolocumab reduced MACE by 18% [odds ratio (OR): 0.82; 95% confidence interval (CI): 0.74–0.90]. Compared with control group, the use of PCSK9 inhibitors was associated with a significant percentage change from baseline in low-density lipoprotein cholesterol [mean difference (MD) –58.48%; 95% CI: –63.73 to –53.22%, P &lt; 0.0001], high-density lipoprotein cholesterol (HDL-C) (MD 5.21%; 95% CI: 3.26–7.17%), triglycerides (MD –14.59%; 95% CI: –19.42 to –9.76%), non-HDL-C (MD –48.84%; 95% CI: –54.54 to –43.14%), and total cholesterol (MD –33.76%; 95% CI: –38.71 to –28.8%). Moreover, a significant reduction of lipoprotein(a) (MD –32.90%; 95% CI: –38.55 to –27.24%) and apolipoprotein B (MD –46.83%; 95% CI: –52.71 to ––40.94%) were observed in PCSK9i group compared with placebo.

Conclusion
PCSK9i appear to be effective in reducing the risk of MACE and in improving lipid profiles of subjects with diabetes and dyslipidaemia.
Correlates of Gait Speed Among Older Adults From 6 Countries: Findings From the COSMIC Collaboration
Authors: Sprague Briana N , Zhu Xiaonan , Rosso Andrea L , Verghese Joe , Delbaere Kim , Lipnicki Darren M , Sachdev Perminder S , Ng Tze Pin , Gwee Xinyi , Yap Keng Bee , Kim Ki-Woong , Han Ji Won , Oh Dae Jong , Narazaki Kenji , Chen Tao , Chen Sanmei , Brodaty Henry , Numbers Katya , Kochan Nicole A , Walker Richard W , Paddick Stella-Maria , Gureje Oye , Ojagbemi Akin , Bello Toyin , Rosano Caterina ,   for the COSMIC Consortium
Published: March 2023

Abstract

Background
Few studies have compared gait speed and its correlates among different ethnogeographic regions. The goals of this study were to describe usual and rapid gait speed, and identify their correlates across Australian, Asian, and African countries.

Methods
We used data from 6 population-based cohorts of adults aged 65+ from 6 countries and 3 continents (N = 6 472), with samples ranging from 231 to 1 913. All cohorts are members of the Cohort Studies of Memory in an International Consortium collaboration. We investigated whether clinical (body mass index [BMI], hypertension, stroke, apolipoprotein status), psychological (cognition, mood, general health), and behavioral factors (smoking, drinking, physical activity) correlated with usual (N = 4 cohorts) and rapid gait speed (N = 3 cohorts) similarly across cohorts. Regression models were controlled for age, sex, and education, and were sex-stratified.

Results
Age- and sex-standardized usual gait speed means ranged from 0.61 to 1.06 m/s and rapid gait speed means ranged from 1.16 to 1.64 m/s. Lower BMI and better cognitive function consistently correlated with faster gait speed in all cohorts. Less consistently, not having hypertension and greater physical activity engagement were associated with faster gait speed. Associations with mood, smoking, and drinking were largely nonsignificant. These patterns were not attenuated by demographics. There was limited evidence that the associations differed by sex, except physical activity, where the greater intensity was associated with usual gait among men but not women.

Conclusions
This study is among the first to describe the usual and rapid gait speeds across older adults in Africa, Asia, and Australia.
Adjuvant zoledronic acid therapy for postmenopausal women with early breast cancer in China: a cost-effectiveness analysis
Authors: Huang Xiaoting , Liu Yiwei , Lin Shen , Wang Hang , Deng Yujie , Rao Xin , Guo Xianzhong , Jiang Xinchan , Weng Xiuhua , Huang Pinfang 
Published: March 2023

AbstractCombination therapy of zoledronic acid (ZOL) plus aromatase inhibitor (AI) was found to reduce bone metastasis risk and improve overall survival for treatment-naïve postmenopausal women (PMW) with hormone receptor–positive (HR+) early breast cancer (EBC), when compared with AI alone. The objective of this study was to evaluate the cost-effectiveness of adding ZOL to AI in treating PMW with HR+ EBC in China. A 5-state Markov model was constructed to evaluate the cost-effectiveness of adding ZOL to AI for PMW-EBC (HR+) over a lifetime horizon from the perspective of Chinese healthcare provider. Data used were obtained from previous reports and public data. The primary outcomes of this study were direct medical cost, life years (LYs), quality-adjusted LYs (QALYs), and incremental cost-effectiveness ratios (ICERs). One-way and probabilistic sensitivity analyses were performed to examine the robustness of the presented model. Over a lifetime horizon, adding ZOL to AI was projected to yield a gain of 1.286 LYs and 1.099 QALYs compared with AI monotherapy, which yielded ICER $11 140.75 per QALY with an incremental cost of $12 247.36. The one-way sensitivity analysis indicated that the cost of ZOL was the most influential factor in our study. The probability that adding ZOL to AI was cost-effective at a threshold of $30 425 per QALY in China was 91.1%. ZOL is likely to be cost-effective in reducing bone metastasis risk and improving overall survival for PMW-EBC (HR+) in China.