bluuebunny/crossref_metadata_2025_split huggingface dataset:
Acceptance and accessibility to the early phase COVID-19 vaccination among the healthcare workers and hill tribe population in Thailand
Authors: Wongnuch Pilasinee , Mulikaburt Thanatchaporn , Apidechkul Tawatchai , Srichan Peeradone , Tamornpark Ratipark , Udplong Anusorn , Suratana Soontaree , Kitchanapaibul Siwarak 
Published: June 2022

AbstractCoronavirus disease 2019 (COVID-19) is a serious emerging disease and an extreme threat to human life. This study aimed to understand the perceptions of hill tribe people living in the border areas of Thailand-Myanmar and health workers regarding the acceptability and accessibility of the COVID-19 vaccine and health workers’ perceptions of the readiness to implement the vaccination program during the early period of national COVID-19 vaccination. A qualitative method was applied to elicit information from key informants who lived in hill tribe villages and the health professionals who served them. The study was conducted in seven hill tribe villages located along the Thailand-Myanmar borders in Mae Fah Luang District, Chiang Rai Province, Thailand. The participants were hill tribe villagers aged 20 years and over; public health care professionals working in village health centers who had primary roles in implementing disease prevention and control measures; and public health care professionals working in districts and provincial public health offices who had primary roles in policy development and implementation. A total of 63 participants (26 men and 37 women) from seven hill tribe villages provided information. Three acceptance choices regarding receiving the COVID-19 vaccine were found among the hill tribes: definite acceptance, likely acceptance, and no preference. Two factors related to obtaining access to the new COVID-19 vaccine were found: Thai citizenship and the level of literacy related to the vaccine. There was no process or protocol in place for implementing the new vaccine among health professionals working at the district, subdistrict, or community levels, but the national expanded immunization program (EPI) system was clearly demonstrated to extend throughout the health service chain in Thailand. During the early period of national COVID-19 vaccine implantation in Thailand, not all members of the hill tribes accepted the vaccine; participant acceptance depended on several factors, including a participant’s previous experience with vaccination, whether he or she required more information before making a decision, etc. While acceptance of the vaccine depended on the individual’s background, not everyone had an equal opportunity to access the vaccine. The new COVID-19 vaccine should be available at the village level, including in hill tribe villages, to reduce the systemic threat to the country.
Effect of nickel-coated carbon nanotubes on the preparation and wear resistance of microarc oxidation ceramic coating on ZL109 aluminum alloy
Authors: Liu Jiang , Zhu Xinhe , Ma Dengqing , Fu Jingguo , Xue Wenbin , Zhang Fan , Ma Chunsheng 
Published: June 2022

AbstractIn order to adapt to the development of lightweight equipment, and further improve the wear resistance of ZL109 aluminum alloy, the influence of nickel-coated carbon nanotubes as an electrolyte additive on the preparation and wear resistance of microarc oxidation ceramic coatings on ZL109 aluminum alloy surface was investigated. In this work, 0.4 g/L, 0.8 g/L, 1.2 g/L, 1.6 g/L, and 2 g/L nickel-coated carbon nanotubes were added to the electrolyte respectively. The microarc oxidation ceramic coatings were prepared under bipolar pulse constant pressure mode, which were analyzed from the aspects of morphology, chemical composition, and wear resistance property. The results show that the nickel-coated carbon nanotubes possess a great influence on ceramic coatings. The morphology of ceramic coatings was significantly changed. In this work, the coating prepared by 1.2 g/L nickel-coated carbon nanotubes exhibits excellent wear resistance property.
Paediatric and adult patients from New Caledonia Island admitted to the ICU for community-acquired Panton-Valentine leucocidin-producing Staphylococcus aureus infections
Authors: Imauven O. , Colot J. , Couadau E. , Moury P.-H. , Preault A. , Vincent F. , Montravers Philippe 
Published: June 2022

AbstractSevere infections involving Panton-Valentine leukocidin-producing Staphylococcus aureus (PVL + Sa) are increasing. This monocentre, retrospective descriptive cohort assessed clinical characteristics and outcome of paediatric and adult patients admitted for community-acquired PVL + Sa infections to the unique intensive care unit (ICU) on New Caledonia Island. Overall, 72 patients (including 23 children) admitted for acute respiratory failure (42%), sepsis/septic shock (21%), and/or postoperative care (32%) were analysed. Most patients had pulmonary (64%), skin/soft tissue (SSTI) (54%) and/or osteoarticular (38%) infections. Multifocal infections (≥ 2 sites) and bacteraemia were reported in 65% and 76% of the patients, respectively. Methicillin-resistant S. aureus isolates were reported in 61% of adult cases versus 30% in children (p < 0.05). Mechanical ventilation, vasoactive support and source control were administered in 53%, 43% and 58% of the patients, respectively. All paediatric patients received adequate empirical antibiotic therapy versus 30/49 adults (p < 0.001). Adequate documented therapy was obtained ≤ 72 h in 70/72 (97%) patients. Death was only reported in adults (n = 10 (14%)), mainly during pulmonary infection (22%), SSTIs (21%) and bacteraemia (24%)). In summary, in ICU patients from New Caledonia Island the clinical presentation of severe community-acquired PVL + Sa infections seems different from Western European observations with high rates of multifocal infections and methicillin-resistant strains.
Cochlear Implants in Veterans: 10-Year Experience at a Single Referral Center
Authors: O'Brien Colleen A. , Waltzman Susan B. , Chodosh Joshua , Friedmann David R. 
Published: June 2022

Purpose:
Severe hearing loss is particularly prevalent among Veterans. In response, the Veterans Affairs (VA) provides hearing aids and cochlear implants as part of their comprehensive hearing loss treatment. The VA's national health care system and integrated electronic health records offer a unique opportunity to examine patterns and outcomes in the management of severe hearing loss.

Method:
We retrospectively reviewed an urban VA center's database for all Veterans who underwent cochlear implantation between 2010 and 2019. We collected preoperative demographic and audiological data including cochlear implant outcomes.

Results:
During the study period, 61 Veterans received a cochlear implant, totaling 70 ears implanted. Median age at implantation was 70.2 years. Over 90% of Veterans reported preoperative hearing aid use, and median preoperative four-frequency pure-tone average and aided word recognition score in the ear to be implanted were 100 dB HL and 7%, respectively. The median onset of severe hearing loss bilaterally was over 4 years prior to cochlear implant evaluation based on available audiometric data. Postoperative word recognition score was negatively correlated with self-reported duration of hearing loss.

Conclusions:
This study provides unique insights into how Veterans with severe hearing loss are managed at one VA center. Compared to data published on cochlear implant recipients in the civilian population, Veterans in this cohort were older and had higher rates of preoperative hearing aid use. Available VA data suggest most Veterans were appropriate candidates for cochlear implant referral years prior to undergoing an evaluation. Reasons for treatment delays in this population remain to be studied.
H−/L∞ UIO‐based actuator and sensor fault diagnosis design in the finite frequency domain for discrete‐time Lipschitz nonlinear systems
Authors: Gao Sheng , Zhang Wei , Zhang Zhaowei 
Published: June 2022

AbstractThis study investigates the problem of fault diagnosis observer design in the finite frequency domain for discrete‐time Lipschitz nonlinear systems simultaneously subjected to actuator and sensor faults and unknown input disturbances. An augmented descriptor system is developed by constructing an augmented state consisting of system states and sensor faults. A novel H−/L∞ unknown input observer (UIO) is proposed in the finite frequency domain using the generalized Kalman–Yakubovich–Popov lemma to render the residual sensitive to actuator faults and robust against disturbances, which can achieve a better fault diagnosis result compared with existing observers in the full frequency domain. In the fault diagnosis scheme, a time‐varying threshold is presented based on the L∞ performance index to detect actuator faults, and the sensor fault estimation is simultaneously achieved through an asymptotical estimation of the augmented state. Design conditions for the proposed H−/L∞ UIO are derived and converted into linear matrix inequalities to solve its design matrices together. The effectiveness of the developed H−/L∞ UIO and the fault diagnosis scheme are validated via simulations of an example of a single‐link flexible joint robot.
A low‐cost phased array antenna with axially loaded dielectric laminas
Authors: Wu Jie 
Published: June 2022

AbstractA low‐cost phased array antenna, consisting of waveguide radiators, dielectric phase shifters and a cooperated feeding network, is proposed and experimentally validated in this paper. The required progressive phases are obtained by controlling the loading depths of dielectric laminas, which are axially inserted into the rectangular channels. The phase difference among channels is determined by the lamina length, the loading depth and the dielectric constant. Theoretically arbitrary phases can be achieved with these design freedoms. A validation prototype of a 1 × 4 array antenna operating around 10 GHz with an element spacing of 0.735λ0 demonstrates a continuous beam steering range of ±23°, which is consistent with theoretical predictions.
Persymmetric subspace detector for distributed target in partially homogeneous environment
Authors: Jian Tao , Xie Zikeng , Wang Haipeng , Liu Yu , He Jia 
Published: June 2022

AbstractThis paper deals with the problem of distributed target detection in partially homogeneous Gaussian clutter whose covariance matrix is unknown but persymmetric. It is assumed that primary data and training data share the same clutter covariance matrix structure but different power levels. The target signal is supposed to lie in a multi‐rank subspace with unknown coordinates. A persymmetric subspace detector is designed based on the generalised likelihood ratio test criteria. It is theoretically demonstrated that the proposed detector possesses constant false alarm rate property with respect to the unknown clutter covariance matrix as well as the power level. Experimental results illustrate the performance advantage of the proposed detector over the existing competitors, especially in training‐limited scenarios.
Data analysis of the long-term residual effect of cathodic protection on reinforced concrete structures
Authors: Cheytani Samir , Lap Ip Chan Sammy 
Published: June 2022

The application of impressed current cathodic protection (CP) is a well-established technology for the corrosion protection of reinforced concrete structures situated in marine environments. While the protective benefits of cathodic protection are well known, the lasting effects following the discontinuation of CP current are not entirely understood.
This paper presents research findings on the residual protective effect which is known to occur following long durations of impressed current cathodic protection. The residual effect was replicated in university laboratories using reinforced concrete test blocks and accelerated CP testing methods. The experimental results depicted a clear improvement in the electrochemical state of the reinforcing steel with a shift of 150 to 300 mV to more positive values following CP application.
The research also involved analysis of monitoring data from six in-service cathodic protection systems which were operating in Australia for nearly two decades. The behaviour of the steel potential readings was analysed and the results of the combined research confirmed that the protection provided by cathodic protection systems does not actually cease when the CP current is switched off. Rather, the embedded steel undergoes a significant and sustained shift to more positive values and this phenomenon is documented and discussed in this paper.
Experimental testing of residual strain and displacement development in pretensioned BFRP reinforced concrete beams
Authors: Pavlović Ana , Donchev Ted , Petkova Diana , Hisrattally Casim 
Published: June 2022

The utilisation of fibre reinforced polymers (FRPs) as reinforcement for concrete elements has attracted attention mainly due to their high tensile strength, light weight and corrosion resistance. Lately, there has been an interest in basalt FRPs as a more economically competitive and environmentally friendly option. Basalt FRP is manufactured from a widely available volcanic rock in a process which does not require any additives, giving it an edge over the currently more popular glass-fibre reinforced plastic (GFRP) reinforcement.
Pretensioning of FRP reinforcement with low longitudinal modulus of elasticity, such as GFRP and BFRP has been proposed as an effective solution to the concerns regarding the serviceability performance of flexural elements reinforced with these composite materials. In previous research it has been demonstrated that prestressing even at low levels can significantly reduce deflections and postpone cracking of BFRP reinforced concrete elements.
This research presents an experimental investigation of pretensioned BFRP reinforced concrete tested under quasi-static loading and unloading cycles at 5kN load increments until failure. A comparison with an unprestressed sample is also provided to examine the effectiveness of prestressing at improving the structural performance of the beams. The samples were equipped with internal strain gauges and linear displacement transducers to monitor the development of strains in the reinforcement, deflections and concrete surface strains during testing. Close monitoring of the anchorage zone and the development of cracks was also conducted.
Based on the experimental results it can be concluded that the prestressing of BFRP reinforced beams delays the development of residual strains and residual displacements upon unloading. Furthermore, the increase in the prestress level further reduced the residual strain and displacements.
Meditations- und Achtsamkeitsinterventionen zur Förderung psychischer Ressourcen in der supportiven onkologischen Behandlung
Authors: Michaelsen Maren M. , Esch Tobias 
Published: June 2022

ZUSAMMENFASSUNGMenschen, die von einer Krebserkrankung betroffen sind, leiden neben körperlichen Beschwerden häufig an psychischen Symptomen wie Angst, Depression und Stress. Psychoonkologische Interventionen zur Unterstützung des Selbstmanagements, Stärkung der Selbstwirksamkeit und Förderung weiterer psychischer Ressourcen sind auf Seiten der Betroffenen von immer größerer Bedeutung. Die derzeitige Evidenz unterstützt die Annahme, dass Meditations- und Achtsamkeitsinterventionen, als ein Element in der Mind-Body-Medizin, wirksam in der supportiven Onkologie eingesetzt werden können. Neben persönlich vermittelten Interventionen erscheinen auch Online-Interventionen (eHealth) in diesem Zusammenhang vielversprechend.
Do Meteorological Variations and Climate Changes Affect Hyperemesis
Gravidarum?
Authors: Akgun Nilufer , Misirligil Selcuk , Yegin Gülin Feykan , Keskin H. Levent , Yavuz Ayse Filiz 
Published: June 2022

Abstract
Background To estimate a possible association between the effects of daily
meteorological variation and climatological changes (temperature, air pressure,
humidity, sunniness level) on pregnant women with hyperemesis gravidarum (HG)
according to symptoms grade and hospitalization state.
Methods A retrospective study was conducted with 118 patients diagnosed
and hospitalized with HG. HG patients were graded as mild, moderate, or severe
according to the Pregnancy Unique Quantification of Emesis (PUQE-24) scale. Data
regarding demographic characteristics, PUQE scale value, gestational week on
hospitalization, hospital admission and discharge dates, weather conditions,
daily meteorological values during hospitalization ( temperature, air pressure,
humidity, sunniness level), seasonal averages, and daily changes were recorded.
Weather records were obtained from the Ankara Meteorology General Directorate
(Ankara, Turkey). Differences between groups were compared according to HG
grade.
Results HG cases were classified as mild (33.1%), moderate
(44.9%), or severe (22.0%). The number of hospitalization days
significantly differed between these three groups (p<0.05). In contrast,
no statistically significant differences were identified between the HG grade
level groups in regard to humidity, pressure, temperature, and sunniness level
data (p>0.05). In addition, no statistically significant relationship
was identified between HG grades and seasonal conditions according to the
chi-square test (p>0.05).
Conclusion Changes in the meteorological and climate values examined were
independent of symptom severity and hospitalization rate for our HG patients.
However, it is possible that climate changes occurring around the world may
affect the pregnancy period and should be further investigated.
Mentalisierungsbasierte Gruppenpsychotherapie (MBT-G) – eine
Kurzfassung
Authors: Schultz-Venrath Ulrich 
Published: June 2022

ZusammenfassungGruppentherapien sind ausgesprochen effektiv. Vermutlich ist Mentalisieren der
zentrale Wirkmechanismus für die eindrucksvollen Ergebnisse.
Mentalisierungsbasierte Gruppenpsychotherapien sind in Kliniken und
Tageskliniken für Patienten mit schwereren psychischen und
psychosomatischen Störungen die Therapie der Wahl. Im ambulanten Bereich
gibt es allerdings immer noch zu wenig Gruppentherapie-Angebote.
Interventional Management of Painful Vertebral Body Metastases
Authors: Sajan Abin , Isaacson Ari , Bagla Sandeep 
Published: June 2022

AbstractManagement of osseous metastatic disease has advanced over the years with the advent of ablation and interventional technologies. Painful metastatic vertebral body lesions have been particularly studied in the recent years, as open surgery is usually reserved for emergent cord compression. Minimally invasive options in managing these lesions include percutaneous vertebral augmentation, percutaneous ablation, and embolization. This article will include an overview of these procedures including the most recent literature.
Development of an operando characterization stage for multi-modal synchrotron x-ray experiments
Authors: Walker Trumann , Nietzold Tara , Kumar Niranjana Mohan , Lai Barry , Stone Kevin , Stuckelberger Michael E. , Bertoni Mariana I. 
Published: June 2022

It is widely accepted that micro- and nanoscale inhomogeneities govern the performance of many thin-film solar cell absorbers. These inhomogeneities yield material properties (e.g., composition, structure, and charge collection) that are challenging to correlate across length scales and measurement modalities. The challenge is compounded if a correlation is sought during device operation or in conditions that mimic aging under particular stressors (e.g., heat and electrical bias). Correlative approaches, particularly those based on synchrotron x-ray sources, are powerful since they can access several material properties in different modes (e.g., fluorescence, diffraction, and absorption) with minimal sample preparation. Small-scale laboratory x-ray instruments have begun to offer multi-modality but are typically limited by low x-ray photon flux, low spatial resolution, or specific sample sizes. To overcome these limitations, a characterization stage was developed to enable multi-scale, multi-modal operando measurements of industrially relevant photovoltaic devices. The stage offers compatibility across synchrotron x-ray facilities, enabling correlation between nanoscale x-ray fluorescence microscopy, microscale x-ray diffraction microscopy, and x-ray beam induced current microscopy, among others. The stage can accommodate device sizes up to 25 × 25 mm2, offering access to multiple regions of interest and increasing the statistical significance of correlated properties. The stage materials can sustain humid and non-oxidizing atmospheres, and temperature ranges encountered by photovoltaic devices in operational environments (e.g., from 25 to 100 °C). As a case study, we discuss the functionality of the stage by studying Se-alloyed CdTe photovoltaic devices aged in the stage between 25 and 100 °C.
R. Thompson’s group

and the amenability problem
Authors: Guba V. S. 
Published: June 2022

Abstract
This paper focuses on Richard Thompson’s group

, which was discovered in the 1960s. Many papers have been devoted to this group. We are interested primarily in the famous problem of amenability of this group, which was posed by Geoghegan in 1979. Numerous attempts have been made to solve this problem in one way or the other, but it remains open.
In this survey we describe the most important known properties of this group related to the word problem and representations of elements of the group by piecewise linear functions as well as by diagrams and other geometric objects. We describe the classical results of Brin and Squier concerning free subgroups and laws. We include a description of more modern important results relating to the properties of the Cayley graphs (the Belk–Brown construction) as well as Bartholdi’s theorem about the properties of equations in group rings. We consider separately the criteria for (non-)amenability of groups that are useful in the work on the main problem. At the end we describe a number of our own results about the structure of the Cayley graphs and a new algorithm for solving the word problem.
Bibliography: 69 titles.
How does multi‐set high‐load resistance exercise impact neuromuscular function in normoxia and hypoxia?
Authors: Benjanuvatra N. , Bradbury D. , Landers G. , Goods P. S. R. , Girard O. 
Published: June 2022

ABSTRACTThis study examined whether hypoxia during multi‐set, high‐load resistance exercise alters neuromuscular responses. Using a single‐blinded (participants), randomised crossover design, eight resistance‐trained males completed five sets of five repetitions of bench press at 80% of one repetition maximum in moderate normobaric hypoxia (inspiratory oxygen fraction = 0.145) and normoxia. Maximal isometric bench press trials were performed following the warm‐up, after 10 min of altitude priming and 5 min post‐session (outside, inside and outside the chamber, respectively). Force during pre‐/post‐session maximal voluntary isometric contractions and bar velocity during exercise sets were measured along with surface electromyographic (EMG) activity of the pectoralis major, anterior deltoid and lateral and medial triceps muscles. Two‐way repeated measures ANOVA (condition×time) were used. A significant time effect (p = 0.048) was found for mean bar velocity, independent of condition (p = 0.423). During sets of the bench press exercise, surface EMG amplitude of all studied muscles remained unchanged (p > 0.187). During maximal isometric trials, there were no main effects of condition (p > 0.666) or time (p > 0.119), nor were there any significant condition×time interactions for peak or mean forces and surface EMG amplitudes (p > 0.297). Lower end‐exercise blood oxygen saturation (90.9 ± 1.8 vs. 98.6 ± 0.6%; p < 0.001) and higher blood lactate concentration (5.8 ± 1.4 vs. 4.4 ± 1.6 mmol/L; p = 0.007) values occurred in hypoxia. Acute delivery of systemic normobaric hypoxia during multi‐set, high‐load resistance exercise increased metabolic stress. However, only subtle neuromuscular function adjustments occurred with and without hypoxic exposure either during maximal isometric bench press trials before versus after the session or during actual exercise sets.