bluuebunny/crossref_metadata_2025_split huggingface dataset:
Noncontact magnetically controlled capsule endoscopy for infection-free gastric examination during the COVID-19 pandemic: a pilot, open-label, randomized trial
Authors: Zhu Jia-Hui , Pan Jun , Xu Xiao-Nan , Liu Ya-Wei , Qian Yang-Yang , Jiang Xi , Jiang Bin , Zhou Wei , Linghu En-Qiang , Li Zhao-Shen , Liao Zhuan 
Published: February 2022

Abstract
Background and study aims Endoscopists have been at increased risk because of their direct contact with patients during the COVID-19 pandemic. For patients, being diagnosed with and monitored for gastrointestinal cancer and digestive diseases in timely fashion has been challenging, given pandemic-related adjustments in endoscopy departments. We developed a novel noncontact magnetically controlled capsule endoscopy (ncMCE) system in our medical center. In the current study, we aimed to evaluate the feasibility and safety of ncMCE for gastric examination.
Patients and methods Patients were randomly assigned to groups that received ncMCE or MCE in a 1:1 ratio from March 26, 2020 to April 26, 2020. Primary endpoints were feasibility assessed by completion rate (CR) and safety based on the occurrence of adverse events (AEs) including infection. Secondary endpoints included maneuverability of endoscopists, pre-procedure perception and post-procedure satisfaction of patients, gastric examination time (GET), and diagnostic yield (DY).
Results Forty patients were enrolled with 100 % CR in both groups without any AEs. Neither the endoscopist nor the patients were infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) within 14 days after gastric examination. There were no significant differences in maneuverability (19.3 vs. 20.0, P = 0.179), pre-procedure perception (9 vs. 9, P = 0.626) and post-procedure satisfaction (45 vs. 44, P =  0.999), ord DY (20 % vs. 30 %, P = 0.465).
Conclusions ncMCE is a feasible and safe method of gastric examination, which has the potential to protect both medical staff and patients from COVID-19 infection while providing serving as an essential endoscopy service.
Acute Arterial Embolization Following Total Knee Arthroplasty: A Report of Two Cases and Literature Review
Authors: Wang Chen , Zhang Xin , Yu Haoran , Cheng Wendan 
Published: February 2022

AbstractAcute arterial embolization is a rare but serious complication following total knee arthroplasty (TKA). So far, the general consensus for this situation is that revascularization must be
performed immediately, but the specific treatment is still controversial. We report two cases of popliteal artery (PA) embolization caused by acute arterial thrombosis following TKA. Both
patients suffered the loss of sensation and movement of the right lower limb and disappearance of dorsalis pedis artery pulsation after operation. Angiography showed PA embolization. One
of the patients received thrombolytic therapy, but he developed a large area of infection and necrosis of the right calf muscle and required multiple debridement and skin grafting
procedures after successful thrombolysis. The other patient underwent thrombectomy, vascular reconstruction, and prophylactic fasciotomy, and some foot numbness and slight extensor
weakness remained after the operation. The authors suggest that surgeons should pay adequate attention to high-risk patients with TKA. Medical history and physical examination should be
carefully collected before operation. The surgical procedure should be performed accurately and gently, and limb sensation and blood circulation should be carefully observed after
operation. If foot sensation is abnormal and arterial pulsation is weakened, necessary examinations (Doppler ultrasound and arteriography) should be carried out immediately. Once diagnosed
with arterial thrombosis, the blood supply should be restored immediately. If the diagnosis is delayed for more than 6 hours, prophylactic fasciotomy may be required as a treatment to
avoid adverse consequences.
Partially covered self-expandable metal stent with antimigratory single flange plays important role during EUS-guided hepaticogastrostomy
Authors: Yamamura Masahiro , Ogura Takeshi , Ueno Saori , Okuda Atsushi , Nishioka Nobu , Yamada Masanori , Ueshima Kazuya , Matsuno Jun , Yamamoto Yoshitaro , Higuchi Kazuhide 
Published: February 2022

Abstract
Background and study aims Stent migration into the abdominal cavity, which can occur due to stent shortening or stomach mobility, is a critical adverse event (AE) in EUS-HGS. To prevent this AE due to stent shortening, a novel, partially covered self-expandable metal stent with an antimigratory single flange has recently become available in Japan. The present study evaluated the clinical feasibility and safety of EUS-HGS using this novel stent.
Patients and methods We measured stent length in the abdominal cavity and the luminal portion after EUS-HGS using computed tomography (CT) performed 1 day after EUS-HGS (early phase). To evaluate stent shortening and the influence of stomach mobility, we also measured stent length at the same sites on CT performed at least 7 days after EUS-HGS (late phase).
Results Thirty-one patients successfully underwent EUS-HGS using this stent. According to CT in the early phase, stent length in the abdominal cavity was 7.13 ± 2.11 mm and the length of the luminal portion was 53.3 ± 6.27 mm. Conversely, according to CT in the late phase, stent length in the abdominal cavity was 8.55 ± 2.36 mm and the length of the luminal portion was 50.0 ± 8.36 mm. Stent shortening in the luminal portion was significantly greater in the late phase than in the early phase (P = 0.04).
Conclusions CT showed that stent migration can occur even with successful stent deployment, due to various factors such as stent shortening. The antimigratory single flange may be helpful to prevent stent migration, but further prospective comparative studies are needed to confirm our results.
Bismuth(III) Triflate-Catalyzed Intermolecular Cyclization of Phenols with Diols: Direct Access to O-Heterocycles
Authors: Minakawa Maki , Sakurai Yuya 
Published: February 2022

AbstractA direct access to O-heterocycles by Bi(OTf)3-catalyzed intermolecular cyclization of phenols with diols is described. Catalytic dehydrative tandem formation of C–O and C–C bonds was achieved by using a Bi(OTf)3 catalyst without any additives. The catalytic intermolecular cyclization of phenols with various diols proceeded to give the corresponding chromanes in up to 91% yield and/or pyran derivatives in up to 66% yield.
Endovascular Treatment of Pulmonary Artery Pseudoaneurysms Post-COVID-19 Pneumonitis
Authors: Kundaragi Nischal G. , K. Sunil Kumar , Talwade Rahul , Lokeshwaran Srivatsa , K. Priyanka V. 
Published: February 2022

AbstractPulmonary artery pseudoaneurysms (PAPs) are uncommon entities consisting of contained rupture of the pulmonary artery and are a potentially fatal cause of hemoptysis. We describe two index cases of left lower lobe PAPs and arterial ectasia post-COVID-19 pneumonitis and their endovascular treatment with Amplatzer vascular plug, coils, and glue.
Congenital Radial Nerve Palsy in a Preterm Baby—A Case Report
Authors: Manjunath Mridula Arabu , Nagabushana Divya , M. Pradeep G. C. , Mangalgi Sharanabasavesh , Veerabhadraiah Krithika Manne 
Published: February 2022

AbstractCongenital radial nerve palsy is a rare condition seen in newborns. It is thought to occur due to compression of upper arm against the pelvic rim in the intrauterine period. We report one such case of congenital radial nerve palsy in a preterm neonate with a classical ecchymotic skin lesion in the upper arm accompanying the wrist drop. The condition has a good prognosis with spontaneous recovery happening within 6 months in most cases.
Active FXI Can Independently Predict Ischemic Stroke in Anticoagulated Atrial Fibrillation Patients: A Cohort Study
Authors: Ząbczyk Michał Tomasz , Hanarz Maksymilian , Malinowski Krzysztof P. , Pociask Elżbieta , Butenas Saulius , Gajos Grzegorz , Undas Anetta 
Published: February 2022

AbstractBackground Atrial fibrillation (AF) is associated with a prothrombotic state. Presence of active tissue factor (TF), activated factor IX (FIXa) and FXIa in circulating blood contributes to thrombosis. We investigated a prognostic value of these factors in AF patients.Methods In this cohort study, 284 AF patients (aged 63.3 ± 8.8 years) treated with oral anticoagulants were enrolled. Plasma levels of active coagulation factors were evaluated using thrombin generation assay. Concentrations of fibrinogen, D-dimer, interleukin-6 (IL-6), and endothelial damage markers, including von Willebrand factor (VWF) and soluble (s)E-selectin, were also measured. Ischemic stroke and cardiovascular death, analyzed separately or as a composite endpoint, were recorded during a mean follow-up of 47 months.Results Cerebrovascular events were observed in 20 patients (1.8%/year) who had at baseline higher fibrinogen, D-dimer, and VWF levels. Active TF and FXIa at enrollment were detectable in 12 (60%) and 15 (75%) patients who experienced ischemic stroke during follow-up. The composite endpoint observed in 23 patients (2.1%/year) was associated with increased concentrations of the above laboratory variables, along with 26% higher IL-6 levels. sE-selectin did not differ between the studied groups. On multivariable regression analysis, advanced age, anticoagulation discontinuation, and detectable FXIa, but not active TF, independently predicted the composite endpoint. No associations of FIXa with the study endpoints were observed.Conclusion FXIa present in circulating blood is associated with increased risk of ischemic stroke and cardiovascular death in anticoagulated AF patients during long-term follow-up. FXIa inhibition could be useful in cardiovascular prevention in AF beyond the current oral anticoagulation.
The 72-Hour Microcirculation Dynamics in Viable Free Flap Reconstructions
Authors: Moellhoff Nicholas , Gernert Clara , Frank Konstantin , Giunta Riccardo E. , Ehrl Denis 
Published: February 2022

Abstract
Background The risk for vascular complications is the highest within the first 24 hours after free flap transfer. Clinical signs of critical perfusion are often recognized with time delay, impeding flap salvage. To detect failing flaps as soon as possible and to prevent persisting microvascular impairments, knowledge of physiological perfusion dynamics in free flaps is needed. Aim of this study was to investigate the physiological perfusion dynamics of viable free flaps using the Oxygen to See (O2C) device for continuous monitoring.
Methods Microcirculation was continuously monitored in 85 viable free flaps over a period of up to 72 hours following microvascular anastomosis using tissue spectrophotometry and laser Doppler flowmetry (O2C, LEA Medizintechnik, Gießen, Germany). The parameters investigated included capillary-venous blood flow (flow), oxygen saturation (SO2), and relative amount of hemoglobin (rHB).
Results Microcirculatory blood flow increased significantly overall, especially within the first 18 hours after microsurgical anastomosis, after which peak formation was occurred. Mean values of SO2 showed a decreasing trend and the steepest decrease of SO2 (slope: 1.0) occurred during the steepest increase of flow between 3 and 6 hours (slope: 4.7) postanastomosis. The rHB values remained fairly constant throughout the study period.
Conclusion Hyperemia after free flap transfer accounts for a significant increase of microvascular flow. Tissue oxygenation is reduced, likely due to an increase of oxygen consumption after anastomosis. A better understanding of physiological perfusion dynamics in free flaps can aid surgeons in recognizing compromised vasculature earlier and improve free flap salvage.
A method for soil management assessment in an unreplicated commercial field
Authors: Lee Juhwan , Plant Richard E. 
Published: February 2022

Context Unreplicated trials are common in agriculture. However, statistical inferences differ from those of traditional experiments based on small, replicated plots. Aims To present a method to assess management effects on soil carbon (C) storage from unreplicated, side-by-side field trials. Methods Two estimates of means with spatially correlated errors are compared using a corrected t-statistic. Then causal inference is made by analysing a significant difference between the means (P < 0.05) and its changes over time. The use of the method is described in comparing yield and organic C stocks between two large fields. Yield was measured during 1997–2005 with a commercial yield monitor, and soil organic C stocks during 2003–2005. The fields experienced the same tillage practice until autumn 2003 and then with different tillage intensity. Key results The results show that crop C yield did not differ between the fields when using the same tillage practice but was greater in the tilled than the no-till field. The results also suggest that total and particulate organic matter-C contents depend on tillage history. For comparative purposes, the data were also analysed using standard mixed model analysis with a semivariogram model for spatial autocorrelation among the residuals. The mixed model results were generally similar to those of the corrected t-statistic method. The mixed model was often, but not always, less conservative than the corrected t-statistic model. Conclusions The method allows analysis of whole-field data and improves our understanding of soil C processes in commercial fields, where agricultural assessment cannot involve replication due to agronomic and economic constraints. Implications The method complements observational data analyses and can offer a direction towards whole-field management.
Codeswitching and artistic performance among multilingual minorities in Flanders
Authors: Lafkioui Mena B. 
Published: February 2022

AbstractViewed from an interactional sociolinguistic perspective, this research addresses multilingual codeswitching practices of youngsters with North African roots from the super-diverse Flemish city of Ghent. Particular attention is paid here to their artistic – mainly interethnic – performances, as these play a vital role in constructing ethnic and social belonging by voicing “glocal” identities. In so doing, the study provides evidence of the importance of multilingualism and codeswitching in the accommodation, socialization, and emancipation of these youngsters.
Beyond differences and similarities in codeswitching and translanguaging research
Authors: Balam Osmer 
Published: February 2022

AbstractIn previous research, there has been an emphasis on differentiating and distancingtranslanguagingfromcodeswitching, partly on the basis that the latter refers to the combination of two discrete systems that correspond to named languages. While this is the mainstream view, there are codeswitching scholars who have proposed alternative views that align with some of the same observations and criticisms that have been raised by proponents of translanguaging. In this conceptual paper, I provide an overview of translanguaging alongside opposing views of codeswitching, and I underscore important similarities that have thus far been absent from present discussions regarding translanguaging versus codeswitching. Drawing on data from the understudied Spanish/English codeswitching variety spoken in Northern Belize, I discuss how bilingual compound verbs lend support to alternative views of codeswitching. Despite clear differences in their empirical goals, research conducted by both codeswitching and translanguaging scholars compels us to reexamine fundamental notions about language and linguistic competence. This reevaluation will not only contribute to theoretical advancement, but it will further elucidate our understanding of the complexity and dynamicity that characterizes bi/multilingual speech production and processing.
Diminutive constructions inbilingual speech
Authors: Vanhaverbeke Margot , Enghels Renata 
Published: February 2022

AbstractThe diminutive construction is formed and used differently in Spanish and English, which leads us to the question how this construction with different morphosyntactic and semantic-pragmatic characteristics in the input languages is governed in Spanish-English bilingual and codeswitching speech. Through the analysis of a dataset of diminutive constructions extracted from the Bangor Miami corpus, this paper contributes to a better understanding of how one and the same construction differently represented in the input languages is administered in bilingual contexts. As this is a first approach to studying diminutives in codeswitching, three well known structural codeswitching models serve as a primary theoretical tool against which the diminutive is tested. These arePoplack’s (1980)Universal Constraints,Myers-Scotton’s (2002)Matrix Language Frame Model, andBlom and Gumperz’ (1972)Metaphorical Codeswitching Framework. The results show that Miami bilinguals prefer the prototypical markers of each language, -itoandlittle(e.g.un partimecito, un little estante). Furthermore, while the data largely confirm Poplack’s Constraints, they refute our hypothesis based on Myers-Scotton’s MLF model. Regarding Gumperz’ theory, the use of diminutive markers in a particular language correlates with a certain meaning the speaker wants to communicate (i.e. quantitative or qualitative), which again provides support to the framework.
A contrastive perspective on French and Italian wh-in situ questions
Authors: Garassino Davide 
Published: February 2022

Abstract
This paper offers a qualitative and quantitative analysis of French and Italian wh-in situ questions based on spontaneous spoken data. A pragmatic analysis relying on two parameters, propositional activation and pragmatic functions, reveals that the licensing conditions and the use of this structure largely differ in the two languages. While French wh-in situ do not require an activated proposition and can introduce a discourse-new topic, Italian wh-in situ mostly require an activated proposition and, at least in the analyzed corpus data, do not introduce discourse-new topics. An examination of the context also reveals that the different licensing conditions influence the interactional uses of these questions. All in all, both French and Italian wh-in situ require a pragmatic condition, which is their ‘anchoring’ to given, or at least inferable, information in the linguistic context (as is typical of Italian) or to predictable situations in the extralinguistic context (such as expected discourse moves in social interactions, as is the case for French).
Slater–Koster parametrization for the phonons of monolayer MoX2(X = S, Se or Te)
Authors: Pan Baoru , Zhou Pan , Xiao Huaping , Yang Xuejuan , Sun Lizhong 
Published: February 2022

Abstract
With the help of the Slater–Koster parametrization, we construct simplified force constant (FC) models to describe the phonons of several two-dimensional (2D) transition metal dichalcogenides (TMDs) (MoX2, X = S, Se or Te) by only considering the FCs to fourth-nearest-neighbor interactions. By fitting the phonon dispersions derived from first-principles calculations, we find these models can well describe the symmetry characters and semimetal states of MoX2’s phonons. Combining the basis of the FC model and the theory of tensor representation, we derive the origin of the irreducible representations at the high symmetry points Γ, K and M. Moreover, by using the compatibility relation between high symmetry points and high symmetry lines, we find the semimetal states of MoX2 are protected by vertical and horizontal mirrors. Our work provides an effective tool to further study the phonons of 2D TMDs.
Spin-dependent band-gap formation for the L-gap surface state on the

(22×3)

reconstructed Au(111) surface
Authors: Ishida H 
Published: February 2022

Abstract
We elucidate how the free-electron-like energy dispersion of the L-gap surface state on a Au(111)-(1 × 1) surface is modified by the experimentally observed uniaxial reconstruction of the topmost atomic layer. For this purpose, we perform a first-principles embedded Green’s function calculation for the

(

22
×

3

)

reconstructed semi-infinite Au(111) surface. The obtained band structure unfolded into the surface Brillouin zone of the (1 × 1) surface can be understood in terms of two spin-split parabolic bands centered at the

Γ

¯

point, their umklapp-induced replicas centered at reciprocal lattice vectors of the superlattice (SL) with much weaker intensities, and mini band gaps at the crossing of two of them. More importantly, it is revealed that the band-gap size depends not only on the amplitude of the SL potential but also on mutual spin orientations of two crossing bands. Furthermore, we demonstrate that the band-gap size and the charge density distribution of the surface states are closely correlated with spatial profile of the SL potential.
Atomistic to continuum scale investigations on mechanical properties of epoxy bonded fiber reinforced polymer composite systems under hygro-thermal exposures
Authors: Sindu B S , Sasmal Saptarshi 
Published: February 2022

Abstract
Epoxy polymers are widely used as adhesives in bonded composite systems. In this study, multi-scale computational investigations from molecular dynamics (MD) to finite element (FE) simulations are carried out to understand the material behaviour at atomistic level and to evaluate the performance at macro level. MD investigations are carried out to understand the extent of degradation of mechanical (such as strength, modulus) and transport properties (such as moisture diffusion coefficient) due to different environmental conditions like moisture ingress and high temperature. The influence of degree of curing of epoxy (diglycidyl ether of bisphenol-A) and type of hardener (diethyltoluene diamine, diethylene triamine, trimethylene hexadiamine) on the mechanical performance of the cross-linked epoxy polymer systems is also investigated. In-depth investigations are also carried out to identify the factors contributing to the total potential energy of cross-linked epoxy polymers and their role during the process of curing. Diffusion coefficient (key transport property) of epoxy polymer under moisture exposure is also determined using MD simulations. It has been demonstrated that high temperature causes the increase in diffusion in epoxy polymer systems. The observations on the performance of the epoxy system under moisture exposure obtained from MD simulations are translated to the higher length scale. The moisture ingress (in turn, significant reduction in mechanical properties) in epoxy polymer used for bonded composite system is also investigated using FE simulations. It is found that the extent of moisture ingress in the epoxy adhesive increases rapidly when epoxy polymer is environmentally exposed (under high temperature), and thus, the whole system gradually loses its effectiveness due to mechanical degradation. The findings of this study will help in understanding crucial parameters and aid to better use/engineering of epoxy polymers.