bluuebunny/crossref_metadata_2025_split huggingface dataset:
Walsh’s Conformal Map onto Lemniscatic Domains for Polynomial Pre-images I
Authors: Schiefermayr Klaus , Sète Olivier 
Published: August 2022

AbstractWe consider Walsh’s conformal map from the exterior of a compact set $$E \subseteq \mathbb {C}$$

E
⊆
C

onto a lemniscatic domain. If E is simply connected, the lemniscatic domain is the exterior of a circle, while if E has several components, the lemniscatic domain is the exterior of a generalized lemniscate and is determined by the logarithmic capacity of E and by the exponents and centers of the generalized lemniscate. For general E, we characterize the exponents in terms of the Green’s function of $$E^c$$

E
c

. Under additional symmetry conditions on E, we also locate the centers of the lemniscatic domain. For polynomial pre-images $$E = P^{-1}(\Omega )$$

E
=

P

-
1

(
Ω
)

of a simply-connected infinite compact set $$\Omega $$
Ω
, we explicitly determine the exponents in the lemniscatic domain and derive a set of equations to determine the centers of the lemniscatic domain. Finally, we present several examples where we explicitly obtain the exponents and centers of the lemniscatic domain, as well as the conformal map.
An Equivalent Substitute Strategy for Constructing 3D Ordered Porous Carbon Foams and Their Electromagnetic Attenuation Mechanism
Authors: Zhang Meng , Ling Hailong , Wang Ting , Jiang Yingjing , Song Guanying , Zhao Wen , Zhao Laibin , Cheng Tingting , Xie Yuxin , Guo Yuying , Zhao Wenxin , Yuan Liying , Meng Alan , Li Zhenjiang 
Published: August 2022

AbstractThree-dimensional (3D) ordered porous carbon is generally believed to be a promising electromagnetic wave (EMW) absorbing material. However, most research works targeted performance improvement of 3D ordered porous carbon, and the specific attenuation mechanism is still ambiguous. Therefore, in this work, a novel ultra-light egg-derived porous carbon foam (EDCF) structure has been successfully constructed by a simple carbonization combined with the silica microsphere template-etching process. Based on an equivalent substitute strategy, the influence of pore volume and specific surface area on the electromagnetic parameters and EMW absorption properties of the EDCF products was confirmed respectively by adjusting the addition content and diameter of silica microspheres. As a primary attenuation mode, the dielectric loss originates from the comprehensive effect of conduction loss and polarization loss in S-band and C band, and the value is dominated by polarization loss in X band and Ku band, which is obviously greater than that of conduction loss. Furthermore, in all samples, the largest effective absorption bandwidth of EDCF-3 is 7.12 GHz under the thickness of 2.13 mm with the filling content of approximately 5 wt%, covering the whole Ku band. Meanwhile, the EDCF-7 sample with optimized pore volume and specific surface area achieves minimum reflection loss (RLmin) of − 58.08 dB at 16.86 GHz while the thickness is 1.27 mm. The outstanding research results not only provide a novel insight into enhancement of EMW absorption properties but also clarify the dominant dissipation mechanism for the porous carbon-based absorber from the perspective of objective experiments.
A Novel Hybrid Point Defect of Oxygen Vacancy and Phosphorus Doping in TiO2 Anode for High-Performance Sodium Ion Capacitor
Authors: Chen Daming , Wu Youchun , Huang Zhiquan , Chen Jian 
Published: August 2022

AbstractAlthough sodium ion capacitors (SICs) are considered as one of the most promising electrochemical energy storage devices (organic electrolyte batteries, aqueous batteries and supercapacitor, etc.) due to the combined merits of battery and capacitor, the slow reaction kinetics and low specific capacity of anode materials are the main challenges. Point defects including vacancies and heteroatoms doping have been widely used to improve the kinetics behavior and capacity of anode materials. However, the interaction between vacancies and heteroatoms doping have been seldomly investigated. In this study, a hybrid point defects (HPD) engineering has been proposed to synthesize TiO2 with both oxygen vacancies (OVs) and P-dopants (TiO2/C-HPD). In comparison with sole OVs or P-doping treatments, the synergistic effects of HPD on its electrical conductivity and sodium storage performance have been clarified through the density functional theory calculation and sodium storage characterization. As expected, the kinetics and electronic conductivity of TiO2/C-HPD3 are significantly improved, resulting in excellent rate performance and outstanding cycle stability. Moreover, the SICs assembled from TiO2/C-HPD3 anode and nitrogen-doped porous carbon cathode show outstanding power/energy density, ultra-long life with good capacity retention. This work provides a novel point defect engineering perspective for the development of high-performance SICs electrode materials. "Image missing"
AI Ethics, Ethics Washing, and the Need to Politicize Data Ethics
Authors: van Maanen Gijs 
Published: August 2022

AbstractMany commercial actors in the tech sector publish ethics guidelines as a means to ‘wash away’ concerns raised about their policies. For some academics, this phenomenon is reason to replace ethics with other tools and methods in an attempt to make sure that the tech sector does not cross any moral Rubicons. Others warn against the tendency to reduce a criticism of ‘ethics washing’ into one of ethics simpliciter. In this essay, I argue firstly that the dominant focus on principles, dilemmas, and theory in conventional ethical theories and practices could be an explanation of it lacking resistance to abuse by dominant actors, and hence its rather disappointing capacity to stop, redirect, or at least slow down big tech’s course. Secondly, drawing from research on casuistry and political philosopher Raymond Geuss, this essay will make a case for a question, rather than theory or principle-based ethical data practice. The emphasis of this approach is placed on the acquisition of a thorough understanding of a social-political phenomenon like tech development. This approach should be replenished with one extra component to the picture of the repoliticized data ethics drawn so far: the importance of ‘exemplars,’ or stories. Precisely the fact that one should acquire an in-depth understanding of the problem in practice will also allow one to look in the past, present, or future for similar and comparable stories from which one can learn.
Gastric outlet obstruction as a rare presentation of peritoneal hydatid disease: A case report
Authors: Shammas Ibrahim , Alorfhli Ibrahim , Shammas Lora , Abbas Aram , Alahmar Fadi Obaied 
Published: August 2022

ABSTRACT

Introduction and importance:
Peritoneal hydatid cyst is a rare disease which transplants by eggs of Echinococcus. Peritoneal cysts are divided into primary and secondary. This case shows an unusual manifestation of peritoneal hydatid cysts, adding to the already known manifestations of this disease in medical literature. It is important because peritoneal hydatid cysts maybe life-threatening if it is not managed carefully.

Case presentation:
In this case, we present a patient with history of recurrent hepatic hydatid cysts who presented with symptoms of gastric outlet obstruction. CT showed multiple peritoneal cysts consisting with peritoneal hydatid cysts located at the level of stomach pylorus. Although the patient suffered from multiple surgeries for recurrent hydatid cysts, she accepted the surgical option. The patient was discharged 10 days later after a non-complicated surgery. Albendazole was recommended after surgery.

Clinical discussion:
The mechanism of peritoneal hydatid cysts is still unknown, but one of theories declares that microrupture can explain the disease.

Conclusion:
This case emphasizes the idea that peritoneal hydatid cysts should be considered even in patients presenting with atypical symptom (eg, Gastric outlet obstruction).

Highlights
The changing roles of frontline bureaucrats in the digital welfare state: The case of a data dashboard in Rotterdam’s Work and Income department
Authors: Kersing Margot , van Zoonen Liesbet , Putters Kim , Oldenhof Lieke 
Published: August 2022

AbstractThe welfare state is currently undergoing a transition toward data-driven policies, management, and execution. This has important repercussions for frontline bureaucrats in such a “digital welfare state.” So far, impact of data-driven tools on frontline bureaucrats is primarily described in terms of curtailing or enlarging their discretionary space to make decisions. It is unclear, however, how daily work practices and role identities of frontline bureaucrats change in situ and which norms they develop to work with new data tools. In this article, we present an empirical study about the impact of a data dashboard in the Work and Income department of the municipality of Rotterdam. We answer the following research question: Which role identities, work practices, and norms of appropriate behavior of frontline bureaucrats in the social domain are reshaped by the introduction of a data dashboard? We use a multiple methods design consisting of semi-structured interviews, ethnographic observations, and document analysis. Our results reveal two role identities among frontline bureaucrats: (a) the client coach, and (b) the caseload manager. We show that the implementation of the dashboard stimulates a shift from a client coach role identity toward a caseload manager role identity. This shift is contested as it leads to role identity conflicts among frontline bureaucrats with a client coach role. Furthermore, we establish that the accommodation of the institutional void in which the introduction of the dashboard takes place, is centered around three themes of contestation: (a) data quality, (b) quality of service provision, and (c) data representations.
Epistemic Side-Effect Effect: A Meta-Analysis
Authors: Maćkiewicz Bartosz , Kuś Katarzyna , Paprzycka-Hausman Katarzyna , Zaręba Marta 
Published: August 2022

AbstractBeebe and Buckwalter (2010) made the surprising discovery that people are more inclined to attribute knowledge when norms are violated than when they are conformed to. The epistemic side-effect effect (ESEE) is the analogue of the Knobe effect (Knobe 2003a). ESEE was replicated in a number of experiments. It was also studied under various conditions. We have carried out a meta-analysis of research on ESEE. The results suggest that ESEE is a robust finding but its magnitude is highly variable. Two study-level covariates influence its size: the subject of the knowledge attribution (agent vs third-party) and the type of norm that is violated or complied with. The effect size is not influenced, however, by the manipulation of chances, by whether the story is about a side effect or not, by language or by question phrasing. The impact of the Gettierization of the story is marginally significant.
Banking Nationalism and Resolution in Italy and Spain
Authors: Donnelly Shawn , Pometto Gaia 
Published: August 2022

AbstractThis article contributes to the comparative literatures on varieties of financial capitalism, economic nationalism and bank resolution with a focus on Spain and Italy's management of bank insolvency and resolution between 2008 and 2018. Both countries' alternative banks faced enormous challenges through prolonged economic decline and declining loan repayments, both turned to depositors to become investors in lieu of attracting arm's-length investors to inject capital, and both had strong connections with local political authorities that resisted bank reform. But Spanish banks were restructured successfully in accordance with EU law while local government ties complicated Italian resolutions. We explain this outcome through two factors: state strength buttressed by outside assistance from the European Stability Mechanism; and strong international marketization, which enhanced the drive to restructure quickly. Spain's decision to ask for loans from the European Stability Mechanism to help restructure its heavily marketized savings banks allowed it to finish reforms after 2012.
Substance use and self-harm emergency department presentations during COVID19: evidence from a National Clinical Programme for Self-Harm
Authors: Maguire E. , Kavalidou K. , Bannan N. , Doherty A. M. , Jeffers A. 
Published: August 2022

AbstractIntroduction:Given the evidence that drinking patterns and self-harm hospital presentations have changed during COVID-19, this study aimed to examine any change in self-harm and suicide-related ideation presentations, together with any possible contribution made by alcohol or substance misuse, to Irish Emergency Departments in 2020, compared with 2018 and 2019.Methods:A population-based cohort with self-harm and suicide-related ideation presenting to Irish hospitals derived from the National Clinical Programme for Self-Harm was analysed. Descriptive analyses were conducted based on sociodemographic variables and types of presentation for the period January to August 2020 and compared with the same period in 2018 and 2019. Binomial regression analyses were performed to investigate the independent effect of demographic characteristics and pre/during COVID-19 periods on the use of substances as contributory factors in the self-harm and suicide-related ideation presentations.Results:12,075 presentations due to self-harm and suicide-related ideation were recorded for the periods January–August 2018–2020 across nine emergency departments. The COVID-19 year was significantly associated with substances contributing to self-harm and suicide-related ideation ED presentations (OR = 1.183; 95% CI, 1.075–1.301, p < 0.001). No changes in the demographic characteristics were found for those with self-harm or suicide-related ideation across the years. Suicide-related ideation seemed to be increased after May 2020 compared with previous years. In terms of self-harm episodes with comorbid drug and alcohol overdose and poisoning, these were significantly increased in January–August 2020, compared with previous timepoints (χ2 = 42.424, df = 6, p < 0.001).Conclusion:An increase in suicide-related ideation and substance-related self-harm presentations may indicate longer term effects of the pandemic and its relevant restrictions. Future studies might explore whether those presenting with ideation will develop a risk of suicide in post-pandemic periods.
Direct numerical simulation of the turbulent kinetic energy and energy dissipation rate in a cylinder wake
Authors: Jiang Hongyi , Hu Xiaoyuan , Cheng Liang , Zhou Tongming 
Published: August 2022

AbstractThe turbulent kinetic energy and energy dissipation rate in the wake of a circular cylinder are examined at a Reynolds number of 1000. The turbulence characteristics are quantified using direct numerical simulation, which provides a comprehensive dataset that is almost impossible to acquire from physical experiments. The energy dissipation rate is decomposed into the components due to the mean flow, the coherent primary vortices and the remainder. It is found that the remainder component, which develops only in a three-dimensional turbulent wake and resides mainly in the regions of vortices, accounts for 95 % and 97 % of the total dissipation rate for 10 and 20 cylinder diameters downstream of the cylinder, respectively (while the remainder accounts for 62 % and 83 % of the total turbulent kinetic energy). Based on the remainder component, the validity of local isotropy, local axisymmetry, local homogeneity and homogeneity in they–zplane for the turbulent dissipation in the wake is examined. The analysis reveals that the turbulent dissipation is largely locally homogeneous, but not locally isotropic or axisymmetric, even after the annihilation of the primary vortex street. In addition, the performances of the four corresponding surrogates to the true dissipation rate are evaluated. Owing to the general validity of local homogeneity, the surrogates of local homogeneity and homogeneity in they–zplane perform well. Although local axisymmetry does not hold, the corresponding surrogate performs well, because errors from different terms largely cancel out. However, the surrogate of local isotropy generally underestimates the true dissipation rate.
Optimal timing of endoscopic sinus surgery for the retention cyst of maxillary sinus
Authors: Sato K , Chitose S , Sato K , Sato F , Ono T , Umeno H 
Published: August 2022

AbstractObjectiveThe optimal timing of functional endoscopic sinus surgery for odontogenic infections precipitated by retention cysts of the maxillary sinus was investigated.MethodsFive adults who underwent functional endoscopic sinus surgery were examined.ResultsThe root apexes of all teeth that had odontogenic infection protruded into the maxillary sinus. All teeth with odontogenic infections precipitated by the retention cysts had percussion pain, indicating they had periodontitis and pulpitis around the root apex. They were vital teeth, indicating they did not have pulp necrosis. The small area of cyst wall attached to the floor of the maxillary sinus and root apex were left intact. The teeth that had odontogenic infections precipitated by retention cysts continued to be vital with no symptoms.ConclusionFunctional endoscopic sinus surgery should be performed before periodontitis and pulpitis of the root apex progress to ascending pulpitis and pulp necrosis. In other words, functional endoscopic sinus surgery should be performed while the affected tooth is still vital.
The development of single molecule force spectroscopy: from polymer biophysics to molecular machines
Authors: Bustamante Carlos , Yan Shannon 
Published: August 2022

Abstract
The advent of single-molecule force spectroscopy represents the introduction of forces, torques, and displacements as controlled variables in biochemistry. These methods afford the direct manipulation of individual molecules to interrogate the forces that hold together their structure, the forces and torques that these molecules generate in the course of their biochemical reactions, and the use of force, torque, and displacement as tools to investigate the mechanisms of these reactions. Because of their microscopic nature, the signals detected in these experiments are often dominated by fluctuations, which, in turn, play an important role in the mechanisms that underlie the operation of the molecular machines of the cell. Their direct observation and quantification in single-molecule experiments provide a unique window to investigate those mechanisms, as well as a convenient way to investigate fundamental new fluctuation theorems of statistical mechanics that bridge the equilibrium and non-equilibrium realms of this discipline. In this review we have concentrated on the developments that occurred in our laboratory on the characterization of biopolymers and of molecular machines of the central dogma. Accordingly, some important areas like the study of cytoskeletal motors have not been included. While we adopt at times an anecdotal perspective with the hope of conveying the personal circumstances in which these developments took place, we have made every effort, nonetheless, to include the most important developments that were taking place at the same time in other laboratories.
Impact of interdisciplinary counselling for parental decision-making in cases of pregnancies with prenatally diagnosed CHD
Authors: Schneider Katja , Bousi Dafni , Stressig Rüdiger 
Published: August 2022

AbstractIntroduction:Parental counselling after antenatal diagnosis of a congenital heart defect requires a high degree of professional and emotional competence and ultimately a sense of responsibility on the part of the consulting physicians. However, little is known about parents` perceptions and evaluation of these consultations.Material/Methods:Survey on 425 women who received interdisciplinary counselling after antenatal diagnosis of a complex fetal congenital heart defect in a specialized prenatal outpatient clinic with an affiliated paediatric heart centre. Two questionnaires were used to retrospectively evaluate the parental perception and impact on counselling, particularly on decision-making. Questionnaires differed between women conceiving the child and women who terminated the pregnancy.Results:400 women continued, 25 women terminated the pregnancy after diagnosis and counselling. Good quality of life was reported for 68% of the children, 15% died postnatally in the further course. 95% rated the counselling as good or very good regardless of the child´s outcome. 73% described the counselling as highly important for their subsequent decision. The possibility of termination of pregnancy was discussed with 37% of the respondents, 22% of them found it outrageous or very distressing. Of all respondents, one woman would have made a different decision regarding continuation of the pregnancy in retrospect.Conclusion:Retrospectively, parents rate prenatal counselling extremely positively, irrespective of the severity of the child´s heart defect. It can be assumed that the consistent joint interdisciplinary consultation and the high reputation of the cooperating heart centre have had an influence on the below-average rate of termination of pregnancy.
Early taphonomic processes in a microbial-based sedimentary system from a temperate salt-pan site (Cervia salterns, Italy)
Authors: Barbieri Roberto , Cavalazzi Barbara 
Published: August 2022

AbstractIn the only salt evaporation pond retaining its natural setting of the historic Salina di Cervia (Italy), the northernmost salterns of the Mediterranean area, a number of potentially preservable textures derive from the interactions between photosynthetic mat producers and the sedimentary substrate. These morphologies occur at the beginning of the taphonomic processes when repeated emerged-submerged conditions take place. In these conditions the cohesive nature of the diatom- and cyanobacterial-derived mucilage favours the stabilization of otherwise ephemeral structures. Surface micromorphologies for which diatoms and cyanobacteria have played some active role when still living in the soft microlayer and down to the sediment-water interface, such as during the gliding motility, can overcome the surface layer of most intense mixing (i.e., the taphonomically active zone) and keep traces of them in the fossil record either as body fossils or as texture contributors. Tiny microbial-derived remnants, such as filaments and biofilm strands of halotolerant microorganisms, while fragile upon their formation, can therefore stabilize as biosignatures when combined with salt precipitation. Halophilic and halotolerant ecosystems are models for life in extreme environments (analogue sites) with similarity to those strongly suspected to occur and/or have occurred on Mars and on other planetary bodies. The study of hypersaline systems such as Salina di Cervia which harbour diverse and abundant microbial life, can be relevant for astrobiology since it allows the investigation of potential biosignatures and their preservation, and of further understand the range of conditions and the planetary processes sustaining potentially habitable systems.