bluuebunny/crossref_metadata_2025 huggingface dataset:
Strengthening mathematical orientation: how university mathematics courses can gain relevance for pre-service teachers
Authors: Allmendinger Henrike , Aslaksen Helmer , Buchholtz Nils
Published: May 2023

The aim of the article is to discuss how university mathematics courses can become more relevant for pre-service teachers (PSTs). We therefore introduce a concept we call mathematical orientation and develop an analytical framework based on Felix Klein’s pervasive approach to elementary mathematics from a higher standpoint and the work of the practical philosopher Stegmaier on orientation. This framework is used to analyze the mathematical orientation of PSTs on two mathematics courses in Norway and Switzerland. In a qualitative empirical approach, we analyzed 85 reflections written by PSTs on the topic of decimal expansions and reconstructed aspects of their individual mathematical orientation. Our results show that mathematical orientation varies across PSTs to a certain extent. In particular, different points of reference, perspectives, standpoints, and types of links between the mathematical content and teaching situations could be identified. We therefore propose that mathematical orientation can be considered a key variable in addressing the mathematical needs of PSTs in university courses.
Selenium Concentration Is Positively Associated with Triglyceride-Glucose Index and Triglyceride Glucose-Body Mass Index in Adults: Data from NHANES 2011–2018
Authors: Li Shuying , Ding Jie , Sun Xiaoxiao , Feng Li , Zhou Weihong , Gui Zhen , Mao Jiangfeng
Published: May 2023

Compiling evidence supports that selenium plays a vital role in glucose metabolism. Triglyceride-glucose index (TyG) and triglyceride-glucose-body mass index (TyG-BMI) are commonly used in epidemiologic studies to evaluate insulin resistance and cardiovascular disease (CVD) risks. This study is aimed to investigate the association between whole blood selenium concentration and TyG and TyG-BMI. A total of 6290 participants (age ≥ 20 years) from the National Health and Nutrition Examination Survey (NHANES) 2011–2018 were included. Multiple linear regression models were used to examine the association between blood selenium quartiles and TyG and TyG-BMI. Subgroup analysis stratified by diabetes status was also performed. The adjusted model showed a positive association between TyG and blood selenium concentration (β [95%CI] = 0.099 [0.063, 0.134], p < 0.001) and TyG-BMI (β [95%CI] = 3.185 [2.102, 4.268], p < 0.001). The association persisted after stratification by diabetes status (p < 0.001). Participants were stratified into four quartiles based on selenium concentration (Q1: 1.08–2.24 μmol/L, Q2: 2.25–2.42 μmol/L, Q3: 2.43–2.62 µmol/L, Q4: 2.63–8.08). Compared with the Q1 group, TyG in the Q3 and Q4 groups was significantly higher (β = 0.075 [95%CI 0.039 to 0.112] and β = 0.140 [95%CI 0.103 to 0.176], respectively). Additionally, TyG-BMI in the Q2, Q3, and Q4 groups was higher than that in the Q1 group (β = 1.189 [95%CI 0.065 to 2.314], β = 2.325 [95%CI 1.204 to 3.446], and β = 4.322 [95%CI 3.210 to 5.435], respectively). Blood level of selenium was positively associated with TyG and TyG-BMI, indicating that excessive blood selenium may be associated with impaired insulin sensitivity and increased risk of cardiovascular disease.
Catechin potentiates the antifungal effect of miconazole in Candida glabrata
Authors: Hervay Nora Tóth , Elias Daniel , Habova Marcela , Jacko Juraj , Morvova Marcela , Gbelska Yvetta
Published: May 2023

The rising number of invasive fungal infections caused by drug-resistant Candida strains is one of the greatest challenges for the development of novel antifungal strategies. The scarcity of available antifungals has drawn attention to the potential of natural products as antifungals and in combinational therapies. One of these is catechins—polyphenolic compounds—flavanols, found in a variety of plants. In this work, we evaluated the changes in the susceptibility of Candida glabrata strain characterized at the laboratory level and clinical isolates using the combination of catechin and antifungal azoles. Catechin alone had no antifungal activity within the concentration range tested. Its use in combination with miconazole resulted in complete inhibition of growth in the sensitive C. glabrata isolate and a significant growth reduction in the azole resistant C. glabrata clinical isolate. Simultaneous use of catechin and miconazole leads to increased intracellular ROS generation. The enhanced susceptibility of C. glabrata clinical isolates to miconazole by catechin was accompanied with the intracellular accumulation of ROS and changes in the plasma membrane permeability, as measured using fluorescence anisotropy, affecting the function of plasma membrane proteins.
Forecasting Sea Level Rise-driven Inundation in Diked and Tidally Restricted Coastal Lowlands
Authors: Befus K. M. , Kurnizki A. P. D. , Kroeger K. D. , Eagle M. J. , Smith T. P.
Published: May 2023

Diked and drained coastal lowlands rely on hydraulic and protective infrastructure that may not function as designed in areas with relative sea-level rise. The slow and incremental loss of the hydraulic conditions required for a well-drained system make it difficult to identify if and when the flow structures no longer discharge enough water, especially in tidal settings where two-way flows occur through the dike. We developed and applied a hydraulic mass-balance model to quantify how water levels in the diked and tidally restricted coastal wetlands and water bodies dynamically respond to sea-level rise, specifically applied to the Herring River Estuary in MA, USA, from 2020 to 2100. Sensitivity testing of the model parameters indicated that primary outcomes were not sensitive to many of the chosen input values, though the terrestrial water input rate to the estuary and the flow coefficient for the hydraulic infrastructure were important. The relative importance of parameters, however, is expected to be site specific. We introduced a drainability metric that quantifies the net water volume drained over every tidal cycle to monitor and forecast how rising water levels on either side of the dike affected the net draining or impounding conditions of the system. Ensembles of model results across parameter and sea-level scenario uncertainties indicated that substantial impoundment of the Herring River Estuary was expected within ~ 20 years with the existing flow structures, a sluice and two flap gates. Simulations with up to three additional gates did not dampen this trend toward impoundment, suggesting that rising impounded water levels are likely even with major construction upgrades. Increasingly impounded diked coastal waterbodies present a hydrologic challenge with socioecological implications due to projected flooding and ecosystem impacts. Solutions to this challenge may be to allow coastal wetland restoration pathways or require substantial and recurring infrastructure improvement projects.
Evaluation of the response of phytoplankton communities to heavy metal stresses using multi-statistical approaches, Alexandria coast, Egypt
Authors: Ismail M. M. , El Zokm G. M.
Published: May 2023

This is the first study to investigate the antioxidant response of the phytoplankton community to heavy metal stress in the open sea. The levels of Cu, Zn, Cd, Mn, Pb, and Fe were determined in the phytoplankton community and water in Abu Talat (AT), and El Dekhella Harbour (DH), Alexandria coast during spring 2018 and autumn 2019. Furthermore, the changes in phytoplankton abundance, the bioconcentration factor (BCF), the metal pollution index (MPI), and the pollution load index (PLI) were used to assess pollution status. The phytoplankton density in the DH stations was 17–42 folds higher than in the AT. The order of BCF during spring was Fe > Zn > Pb > Cu > Mn > Cd. However, Fe > Zn > Mn > Cu > Pb > Cd was found in both areas during the autumn. The BCF, MPI, and PLI of the phytoplankton community revealed that DH is more polluted than AT. The phenol, 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity and total antioxidant activity of the phytoplankton communities achieved higher values in DH than in AT stations, in response to heavy metal stresses. Principal component analysis was performed to follow pollution sources, suggesting that station 3 in both seasons was a hot spot because of stagnant water. A correlation matrix indicated that phenol and DPPH interacted positively in both locations during the two seasons. Analysis of variances with replicate tests on heavy metals in phytoplankton revealed significant seasonal differences across the two areas at a significance level < 0.05.
SIUMB recommendations on the use of ultrasound in neoplastic lesions of the gallbladder and extrahepatic biliary tract
Authors: de Sio Ilario , D’Onofrio Mirko , Mirk Paoletta , Bertolotto Michele , Priadko Kateryna , Schiavone Cosima , Cantisani Vito , Iannetti Giovanni , Vallone Gianfranco , Vidili Gianpaolo ,   The SIUMB experts committee, Elisabetta Buscarini , Fabrizio Calliada , Giulio Di Candio , Giovanna Ferraioli , Pietro Pavlica , Fabio Piscaglia , Maurizio Pompili , Ludovico Rapaccini Gian , Marcello Romano , Carla Serra , Maurizio Soresi , Brizi Gabriella , Luciano Tarantino , Attili Fabia
Published: May 2023

Extrahepatic biliary tract and gallbladder neoplastic lesions are relatively rare and hence are often underrepresented in the general clinical recommendations for the routine use of ultrasound (US). Dictated by the necessity of updated summarized review of current literature to guide clinicians, this paper represents an updated position of the Italian Society of Ultrasound in Medicine and Biology (SIUMB) on the use of US and contrast-enhanced ultrasound (CEUS) in extrahepatic biliary tract and gallbladder neoplastic lesions such as extrahepatic cholangiocarcinoma, gallbladder adenocarcinoma, gallbladder adenomyomatosis, dense bile with polypoid-like appearance and gallbladder polyps.
PosKHG: A Position-Aware Knowledge Hypergraph Model for Link Prediction
Authors: Chen Zirui , Wang Xin , Wang Chenxu , Li Zhao
Published: May 2023

Link prediction in knowledge hypergraphs is essential for various knowledge-based applications, including question answering and recommendation systems. However, many current approaches simply extend binary relation methods from knowledge graphs to n-ary relations, which does not allow for capturing entity positional and role information in n-ary tuples. To address this issue, we introduce PosKHG, a method that considers entities’ positions and roles within n-ary tuples. PosKHG uses an embedding space with basis vectors to represent entities’ positional and role information through a linear combination, which allows for similar representations of entities with related roles and positions. Additionally, PosKHG employs a relation matrix to capture the compatibility of both information with all associated entities and a scoring function to measure the plausibility of tuples made up of entities with specific roles and positions. PosKHG achieves full expressiveness and high prediction efficiency. In experimental results, PosKHG achieved an average improvement of 4.1% on MRR compared to other state-of-the-art knowledge hypergraph embedding methods. Our code is available at https://anonymous.4open.science/r/PosKHG-C5B3/.
A history of solar activity over millennia
Authors: Usoskin Ilya G.
Published: May 2023

Here we review present knowledge of the long-term behaviour of solar activity on a multi-millennial timescale, as reconstructed using the indirect proxy method. The concept of solar activity is discussed along with an overview of the dedicated indices used to quantify different aspects of variable solar activity, with special emphasis on sunspot numbers. Over long timescales, quantitative information about past solar activity is historically obtained using a method based on indirect proxies, such as cosmogenic isotopes$$^{14}$$14C and$$^{10}$$10Be in natural stratified archives (e.g., tree rings or ice cores). We give a historical overview of the development of the proxy-based method for past solar-activity reconstruction over millennia, as well as a description of the modern state of the art. Special attention is paid to the verification and cross-calibration of reconstructions. It is argued that the method of cosmogenic isotopes makes a solid basis for studies of solar variability in the past on a long timescale (centuries to millennia) during the Holocene (the past$$\sim $$∼12 millennia). A separate section is devoted to reconstructions of extremely rare solar eruptive events in the past, based on both cosmogenic-proxy data in terrestrial and lunar natural archives, as well as statistics of sun-like stars. Finally, the main features of the long-term evolution of solar magnetic activity, including the statistics of grand minima and maxima occurrence, are summarized and their possible implications, especially for solar/stellar dynamo theory, are discussed.
Some Remarks on Polarized Partition Relations
Authors: Jureczko Joanna
Published: May 2023

This paper deals with two notions: a polarized partition relations $$\left( \begin{array}{c} \alpha \\ \beta \end{array} \right) \rightarrow \left( \begin{array}{cc} \gamma &{} \eta \\ \delta &{} \lambda \end{array} \right) $$

α

β

→

γ

η

δ

λ

and product of generalized strong sequences. Strong sequences were introduced by Efimov in 1965 as a useful tool for proving famous theorems in dyadic spaces, i.e. continuous images of Cantor cube. In this paper we introduce the notion of product of generalized strong sequences and give the pure combinatorial proof that $$\left( \begin{array}{c} \alpha \\ \beta \end{array} \right) \rightarrow \left( \begin{array}{cc} \gamma &{} \eta \\ \delta &{} \lambda \end{array} \right) $$

α

β

→

γ

η

δ

λ

is a consequence of the existence of product of generalized strong sequences.
Determination of metal contents in some green leafy vegetables in Marmara region of Turkey
Authors: Zor Medet , Kocaoba Sevgi
Published: May 2023

This study focused on the analysis of mineral and heavy metal contents of spinach, lettuce and parsley samples in different regions to investigate the risks of chronic exposure to heavy metal contamination. After the microwave digestion process, the metal contents of the samples (Na, Mg, Al, P, K, Ca, Fe, Cu, Zn, As, Se, Cd, Sn, Hg, Pb) were determined with the ICP-MS. Two parallel analysis samples were prepared from each sample, analyzed three times, and the mean values of the analyzes performed were reported. From the analysis, the order of finding heavy metals in the samples is Cu > Pb > Cd > As > Sn > Hg. The results were evaluated statistically and Cu, Pb, Cd, As and Sn values were found high in spinach samples (p < 0.05). According to the results of the analysis; the samples with the highest content of Cu, Pb and Cd in spinach samples are samples taken from Tekirdağ (5.1 ± 0.3 mg/kg), Edirne (0.106 ± 0.007 mg/kg) and Tekirdağ (0.080 ± 0.004 mg/kg), respectively. One of the important reasons for this is the increase in industrial areas in those regions. The results were compared with the certified reference materials, the quantities of analytes were determined to be compatible with the certificate values and the results of the analysis were proved to be correct.
Can tooth germ show continuous development after autologous transplantation?
Authors: Al-Khanati Nuraldeen Maher , Beit Zafin Kara
Published: May 2023

Tooth autotransplantation is a tooth replacement treatment modality in which a tooth from an individual is transplanted into another site in the same person. Transplantation of tooth germ with unformed roots or in early stages of root development is seldom practiced even among clinicians who usually practice tooth transplantation. In this paper, we discuss this debatable topic and provide experience-based perspective regarding autologous transplantation of teeth that lack sufficient root length. This paper raises the possibility of performing autotransplantation of donor teeth that were previously considered sub-optimal.
Fluoroscopic-guided retrograde transurethral ureteric stent insertion case series - Technical challenges and solutions
Authors: Courtney M. , Motyer R. , O’Neill H. , O’Mahony J. , McEniff N. , Brennan I. , Guiney M. , Ryan J. M.
Published: May 2023

Abstract

Introduction

Fluoroscopic-guided retrograde ureteric stent exchange is a commonly performed procedure at our institution for patients with treated gynaecological malignancy. Technical challenges are often met during the procedure. This approach is well-tolerated and does not require general anaesthetic. Routine exchange is required every 16–20 weeks.

Presentation of cases

We describe the technique of fluoroscopic-guided retrograde transurethral ureteric stent exchange and outline potential technical pitfalls through a series of recent cases at our institution. Challenges encountered include stent encrustation, stent malposition, tangled stents and loss of access.

Discussion

The case series demonstrates a variety of solutions to challenging technical situations including manual breakdown of luminal debris, stent repositioning and snaring techniques, and methods for overcoming loss of access. Successful outcomes were achieved in the majority of cases.

Conclusion

Fluoroscopic-guided retrograde ureteric stent exchange is a challenging technique, not universally performed in all interventional departments. The technique is generally well tolerated and avoids the need for general anaesthesia.

Highlights
Early Tang China and the World, 618–750 CE
Authors: Yang Shao-yun
Published: May 2023

For about half a century, the Tang dynasty has held a reputation as the most 'cosmopolitan' period in Chinese history, marked by unsurpassed openness to foreign peoples and cultures and active promotion of international trade. Heavily influenced by Western liberal ideals and contemporary China's own self-fashioning efforts, this glamorous image of the Tang calls for some critical reexamination. This Element presents a broad and revisionist analysis of early Tang China's relations with the rest of the Eurasian world and argues that idealizing the Tang as exceptionally “cosmopolitan” limits our ability to think both critically and globally about its actions and policies as an empire.
Insomnia among community members in Florida: Associations with demographics, health conditions, and social support
Authors: Fidler Andrea L. , Chaudhari Piyush , Sims Victoria , Payne-Murphy Jessica , Fischer Jonathan , Cottler Linda B.
Published: May 2023

Objectives:

To identify associations between demographics, social determinants of health, health conditions, and reported history of insomnia. A cross-sectional study including 11,960 adult community members recruited through HealthStreet, a community outreach program at University of Florida.

Methods:

Health assessments were conducted via interviews. Participants reported their demographic background, level of social support, history of health conditions, and insomnia. Logistic regression was used to understand associations between risk factors and history of insomnia.

Results:

The prevalence of self-reported insomnia was 27.3%. Adults aged ≥ 65 years (OR = 1.16) and women (OR = 1.18) reported higher rates of insomnia than their counterparts. Black/African American individuals reported lower rates of insomnia (OR = 0.72) than White individuals. Individuals with food insecurity (OR = 1.53), a military history (OR = 1.30), lower social support (OR = 1.24), living alone (OR = 1.14), anxiety (OR = 2.33), cardiometabolic disease (OR = 1.58), and attention-deficit hyperactivity disorder (ADHD) (OR = 1.44) were significantly more likely to endorse insomnia compared with their counterparts. Depression (OR = 2.57) had the strongest association with insomnia.

Conclusions:

This study provides evidence regarding who is at greater risk for insomnia among a large community-based sample. Our findings highlight the importance of screening for insomnia, particularly among patients who experience food insecurity, are military veterans, have anxiety, depression, ADHD, or cardiometabolic disease, as well as those who live alone or have lower levels of social support. Future public health campaigns should provide education on insomnia symptoms, treatments, and evidenced-based sleep-promotion strategies.
Coronavirus disease 2019 (COVID-19) vaccination rates and staffing shortages among healthcare personnel in nursing homes before, during, and after implementation of mandates for COVID-19 vaccination among 15 US jurisdictions, National Healthcare Safety Network, June 2021–January 2022
Authors: Reses Hannah E. , Soe Minn , Dubendris Heather , Segovia George , Wong Emily , Shafi Shanjeeda , Kalayil Elizabeth J. , Lu Meng , Bagchi Suparna , Edwards Jonathan R. , Benin Andrea L. , Bell Jeneita M.
Published: May 2023

Objective:

To examine temporal changes in coverage with a complete primary series of coronavirus disease 2019 (COVID-19) vaccination and staffing shortages among healthcare personnel (HCP) working in nursing homes in the United States before, during, and after the implementation of jurisdiction-based COVID-19 vaccination mandates for HCP.

Sample and setting:

HCP in nursing homes from 15 US jurisdictions.

Design:

We analyzed weekly COVID-19 vaccination data reported to the Centers for Disease Control and Prevention’s National Healthcare Safety Network from June 7, 2021, through January 2, 2022. We assessed 3 periods (preintervention, intervention, and postintervention) based on the announcement of vaccination mandates for HCP in 15 jurisdictions. We used interrupted time-series models to estimate the weekly percentage change in vaccination with complete primary series and the odds of reporting a staffing shortage for each period.

Results:

Complete primary series vaccination among HCP increased from 66.7% at baseline to 94.3% at the end of the study period and increased at the fastest rate during the intervention period for 12 of 15 jurisdictions. The odds of reporting a staffing shortage were lowest after the intervention.

Conclusions:

These findings demonstrate that COVID-19 vaccination mandates may be an effective strategy for improving HCP vaccination coverage in nursing homes without exacerbating staffing shortages. These data suggest that mandates can be considered to improve COVID-19 coverage among HCP in nursing homes to protect both HCP and vulnerable nursing home residents.
Effects of preoperative nutritional status on postoperative quality of recovery: a prospective observational study
Authors: Kinugasa Yuki , Ida Mitsuru , Nakatani Shohei , Uyama Kayo , Kawaguchi Masahiko
Published: May 2023

Quality of Recovery-15 (QoR-15) has received attention as a postoperative patient-reported outcome measure. Preoperative nutritional status has negative effects on postoperative outcomes; however, these associations have not yet been investigated. We included inpatients aged ≥ 65 years who underwent elective abdominal cancer surgery under general anaesthesia between 1 June 2021 and 7 April 2022 at our hospital. Preoperative nutritional status was assessed using the Mini Nutritional Assessment Short-Form (MNA-SF), and patients with an MNA-SF score ≤ 11 were categorised into the poor nutritional group. The outcomes in this study were the QoR-15 scores at 2 d, 4 d and 7 d after surgery, which were compared between groups by unpaired t test. Multiple regression analysis was applied to assess the effects of poor preoperative nutritional status on the QoR-15 score on postoperative day 2 (POD 2). Of the 230 included patients, 33·9 % (78/230) were categorised into the poor nutritional status group. The mean QoR-15 value was significantly lower in the poor nutritional group than in the normal nutritional group at all postoperative time points (POD 2:117 v. 99, P = 0·002; POD 4:124 v. 113, P < 0·001; POD 7:133 v. 115, P < 0·001). Multiple analyses showed that poor preoperative nutritional status was associated with the QoR-15 score on POD 2 (adjusted partial regression coefficient, −7·8; 95 % CI −14·9, −0·72). We conclude that patients with a poor preoperative nutritional status were more likely to have a lower QoR-15 score after abdominal cancer surgery.
A simple fruit and vegetable score is a valid tool to assess actual fruit and vegetable intake
Authors: Pastori Giulia , Brouwer Inge D. , Feskens Edith J. M. , Huong Le Thi , Samuel Folake O. , Xuan Le Thi Thanh , Shittu Oluyemisi F. , Eyinla Toluwalope E. , Talsma Elise F.
Published: May 2023

With the recent growing interest in improving fruit and vegetable intake for better health and limited research resources in many settings, simple-to-administer and low-priced indicators are essential tools for monitoring fruit and vegetable intake at the population level. A potential candidate indicator is the fruit and vegetable component of the Global Dietary Recommendation score (FV-GDR) based on data collected using the Diet Quality Questionnaire (DQQ). We investigated the relative validity of FV-GDR collected with the DQQ to measure fruit and vegetable intake by comparison with a 24-h recall (24hR) as a reference collected from 620 Vietnamese and 630 Nigerian adults in 2021. We found proportional differences in the prevalence of intake of vitamin A-rich vegetables, other vegetables and other fruits in Vietnam and all vegetable food groups in Nigeria. In both countries, we found a small difference in the total FV-GDR from DQQ compared with the 24hR, and the percentage of agreement between the two methods was quite high for the majority of the food groups. The FV-GDR calculated from the DQQ correlated with the actual intake, although less strongly than the FV-GDR from 24hR. The DQQ is a promising low-burden, low-cost and simple tool to calculate FV-GDR and to monitor fruit and vegetable consumption at the population level. This provides the possibility of evaluating an important aspect of diet quality in low-resource settings.
Resolving a Paradox: Retail Trades Positively Predict Returns but Are Not Profitable
Authors: Barber Brad M. , Lin Shengle , Odean Terrance
Published: May 2023

Retail order imbalance positively predicts returns, but on average retail investor trades lose money. Why? Order imbalance tests equal-weighted stocks, but retail purchases concentrate on attention-grabbing stocks that subsequently underperform. Long–short strategies based on extreme quintiles of retail order imbalance earn dismal annualized returns of −14.8% among stocks with heavy retail trading but earn 6.6% among other stocks. Our results reconcile the literatures on the performance of retail investors, the predictive content of retail order imbalance, and attention-induced trading and returns. Smaller retail trades concentrate more on attention-grabbing stocks and perform worse.
Multimodal composing and second language acquisition
Authors: Lim Jungmin , Kessler Matt
Published: May 2023

Multimodal composing, which has sometimes been referred to synonymously as multimodal composition or multimodal writing, is the use of different semiotic resources (e.g., audio, visual, gestural, and/or spatial resources) in addition to linguistic text for making meaning. Notably, multimodal composing is neither a new type of writing nor a new area of research, with studies dating back to the early 2000s. In the domain of second language (L2) research, Tardy's (2005*) study on multimodal composition in academia was one of the earliest to bring attention to the nonlinguistic features of L2 written output. Even after this pioneering study, in the few years that followed, only a handful of studies further explored aspects of L2 learners’ multimodal compositions. However, over the past decade, the fields of applied linguistics and second language acquisition (SLA) have witnessed an explosion of interest in both its study and classroom applications, with teachers’ adoption of multiple modes becoming an indispensable part of their pedagogical toolkits (e.g., Kessler, 2022; Li, 2021; Zhang et al., 2021).
Kokyu Studio in Wrocław: A Place of Practice
Authors: Duda Anna
Published: May 2023

This article attempts to outline the most important assumptions of the work of Kokyu Studio led by Przemysław Błaszczak and Joanna Kurzyńska and based at the Grotowski Institute in Wrocław in Poland. The Studio’s educational and artistic programme is founded on the idea of a ‘place of practice’, which captures the philosophical, practical, aesthetic, and ethical horizon of the activities common to all members of the Studio. The regularity of practice, exposure to long working processes, and the improvement of the quality of movement, which are rooted in several traditions and methods of work, allow practitioners to study their own development and integrate various sources of knowledge. Reflections here also ask questions about the place and application of such a model of work in the context of contemporary challenges for actor-performer training.
Successful catheter ablation of the accessory pathway in an unusual location in a 13-year-old girl with a coronary sinus diverticulum and Wolff-Parkinson-White syndrome
Authors: Torun Emine Gulsah , Koca Serhat , Dinçel Gökçe Kaya , Çay Serkan
Published: May 2023

Wolff-Parkinson-White syndrome is a congenital cardiac pre-excitation syndrome that is effectively treated by ablating the accessory pathway. However, accessory pathways located in the posteroseptal region can sometimes be challenging. In this paper, we present the successful ablation of the epicardial posteroseptal accessory pathway through the middle cardiac vein in a 13-year-old girl with a coronary sinus diverticulum and Wolff-Parkinson-White syndrome, after unsuccessful ablation attempts at different locations. If the ablation procedure fails, the possibility of the posteroseptal pathway should be kept in mind, and coronary sinus angiography should be performed. In cases with a coronary sinus diverticulum where ablation is not successful, other coronary sinus structures, for example, the middle cardiac vein should be considered as potential accessory pathways.
A 39 GHz spatial division multiplex MU-MIMO using 256 element hybrid AAS for IAB application
Authors: Kuwabara Toshihide , Tawa Noriaki , Maruta Yasushi , Hori Shinichi , Kaneko Tomoya
Published: May 2023

This paper describes the design and implementation of a 39 GHz 256-element hybrid active phased array antenna system with 16 individual digital transceivers, and its wireless multi-user, multi-input, multi-output verification. An earlier version of this paper was presented at the 2021 51st European Microwave Conference and was published in its Proceedings [1]. Using the prototype device, a single carrier transmission test assuming a mobile backhaul link and a MU-MIMO transmission test using a zero-forced orthogonal multi-beam based on channel reciprocity assuming an access link was performed. As a result, an EIRP of 43 dBm and a data rate of 5.5 Gbps in 1 GHz bandwidth single carrier 128QAM operation and an estimated total throughput of 2.4 Gbps by 3GPP TS38.214 [2] in 100 MHz bandwidth OFDM 8 MU-MIMO operation were achieved, respectively. As far as the author knows, this is the first demonstration for integrated access and backhaul (IAB) application that uses the 39 GHz band.
Miniaturization of folded circular SIW cavity filters
Authors: Sieganschin Anton , Tegowski Bartosz , Koelpin Alexander , Jacob Arne F.
Published: May 2023

This contribution presents miniaturization techniques for folded circular substrate integrated waveguide (FCSIW) cavity filters. The cavities support dual-mode operation. Two of these cavities are combined to form a fourth-order filter. Two filter designs are implemented. The first one serves as a reference and exhibits good manufacturability. For the second one, the cavity is modified, which leads to $50\%$ more compactness. The designs are experimentally verified with 10 GHz bandpass filters. Even though the achieved level of compactness requires higher technological effort, the measurements validate the miniaturization concept. The out-of-band rejection exceeds 40 dB between 11.2 and 30 GHz for the reference filter and between 11.3 and 33 GHz for the miniaturized one. The implemented components are compared with state-of-the-art filters.
Metamaterial lenses for monostatic and bistatic 77 GHz radar systems
Authors: Kohlberger Christoph , Hüttner Richard , Wagner Christoph , Stelzer Andreas
Published: May 2023

Metamaterial lenses are appealing thin alternatives to conventional dielectric lenses. In this contribution we describe their design and application in two exemplary 77 GHz automotive radar sensors operating in monostatic and bistatic modes. The frontends are built around commercially available MMICs and small feed antennas are used in coordination with the six-layer printed circuit board-based realizations of metamaterial lenses. The design follows the principles of dielectric lenses, while the required local phase shift is obtained from a set of metasurface bandpasses. Their design uses a novel interpolation procedure to extract layout parameters for a given phase shift. Despite the small structural sizes due to the high frequency, the fabricated frequency-selective surfaces show very good performance in the required frequency range. Verification measurements were conducted on single bandpasses as well as on metamaterial lenses mounted on the radar frontend. The results agree very well with the simulation and confirm the applicability of thin lenses operating at mm-wave frequencies for automotive radar applications.
A planar microwave sensor for noninvasive detection of glucose concentration using regression analysis
Authors: Singh Tilakdhari , Mishra Piyush Kumar , Pal Aditya , Tripathi Vijay Shanker
Published: May 2023

This paper presents a planar microwave sensor for the noninvasive detection of glucose concentration in diabetic patients. The designed sensor operates from the 3.8 to 6.2 GHz frequency band, which covers the 5.8 GHz Industrial Scientific and Medical (ISM) band. The designed sensor shows a percentage bandwidth of 23.8% with a reflection coefficient (S11) of −50 dB at the resonance frequency of 5.7 GHz. The detection was carried out by varying the relative permittivity of the blood in accordance with the glucose concentration based on the Cole–Cole model. The measured result is calculated in terms of varying resonance frequency with variation in the reflection coefficient |S11| of the designed sensor. The observed frequency shift and corresponding sensitivity of the sensor are found at 1.7 GHz and 0.089 MHz/mg dL−1, respectively. An experimental validation has also been performed, and the frequency shift is analyzed by interacting the human thumb with the sensor. The simulated and experimental results of the designed sensor suggest that it can be useful for detecting glucose concentration noninvasively for diabetic patients.
Applying Item Response Theory to the Evaluation and Revision of the Wettkampfangst-Inventar-State (WAI-S)
Authors: Luan Mengkai , Heine Jörg-Henrik , Chen Xin , Ehrlenspiel Felix
Published: May 2023

Abstract: Research investigating competitive anxiety is typically based on the Competitive State Anxiety Inventory-2 ( Martens, Burton et al., 1990 ), its revision, or its derivatives in other languages. The psychometric quality of these scales as a whole has been determined according to classic test theory but it has not been assessed at the item level. Thus, the present research assessed the psychometric properties of the German derivative of this instrument, the German Wettkampfangst-Inventar-State (WAI-S; Ehrlenspiel et al., 2009 ) at the item level and tested a revised and extended version of the WAI-S by using an analytical approach based on item response theory. In Study 1, graded response models (GRMs) were fitted to the three subscales of the WAI-S using the original dataset collected for its development. We provided evidence indicating the sufficient psychometric properties of the somatic subscale, but we also identified some unfavorable properties of items in the cognitive anxiety and the self-confidence subscales. Thus, in Study 2, a revised and extended 16-item version of the WAI-S with 10 new items was generated and administered to a new sample of 322 German athletes. On the basis of the GRM results, we identified items with poor quality. We subsequently selected 12 appropriate items to generate a revised version of the WAI-S with stronger psychometric properties than the original instrument. We believe that the revised version of the WAI-S will increase the usability of competitive state anxiety assessments in both research and practice.
Winning Ugly – Gewinnen um jeden Preis?
Authors: Lobinger Babett Helen , Reinhard Martin Leo , Tüschen Florian , Bentler Dominik , Zepp Christian , Hellermann Frederik
Published: May 2023

Zusammenfassung: Im Leistungssport scheint es nicht selten um ein „Gewinnen um jeden Preis“ zu gehen: Wo liegen die Grenzen zwischen regelkonformem, cleverem, taktischem Verhalten im Umgang mit dem Gegner oder der Gegnerin und unfairem, unmoralischem Handeln? Wie sollten sich Sportpsychologinnen und Sportpsychologen dazu positionieren? Ausgehend von Praxisbeispielen widmet sich dieser Beitrag dem Forschungsstand zu Winning Ugly und Trash Talk in der Praxis des Leistungssports. Als Rahmenkonzept für eine vertiefte Diskussion und die Ableitung erster Konsequenzen und Interventionsmöglichkeiten vor allem im Fußball, wird ein ökosystemischer Zugang gewählt. Dieser diskutiert Erscheinungsformen, potentielle psychologische Ursachen und Zusammenhänge für Spieler_in, Trainer_in, Mannschaft, Eltern und Verein. Die so charakterisierte Praxis des „Gewinnen um jeden Preis“ wird vor dem Hintergrund der Verwendung von injunktiven und deskriptiven Normen und Werten im System Leistungssport diskutiert. Mit Bezug zum professionellen Handeln in der Angewandten Sportpsychologie werden abschließend Thesen im Umgang mit beispielhaften Winning Ugly Verhaltensweisen zur Diskussion gestellt.
Molecular Transport Conditions Required for the Formation of Penitentes on Airless, Ice‐Covered Worlds, With Specific Application to Europa, Enceladus, and Callisto
Authors: Macias A. , Carreon A. , Berisford D. F. , Nordheim T. A. , Kale G. , Goldstein D. , Varghese P. , Trafton L. , Steckloff J. , Hand K. P.
Published: May 2023

The surface morphology of airless, ice‐covered moons of the outer solar system, such as Europa, Enceladus, and Callisto, is not well known at centimeter‐ to meter‐scales. Ice and snow erode differently on such worlds in part because sublimation is the dominant process. On Earth, ice penitentes have been observed in sublimation‐driven environments, and may provide a guide for similar formations on ice‐covered worlds. Penitentes are blade‐like snow features observed on Earth in high‐altitude, low‐latitude snowfields. Models of penitente formation on Earth break down within the free‐molecular regime of airless bodies, leaving a major gap in understanding whether such morphologies can form on their surfaces. To investigate the morphologic evolution of icy bodies, we developed a Sublimation Monte Carlo (SMC) model that enables a numerical approach to modeling exosphere‐surface interactions at free‐molecular conditions. The SMC model uses Monte Carlo tracking of molecules emitted from the surface to determine the net molecular interchange that drives surface changes. We validated results against experiments, matching the evolution of pre‐formed penitentes as they receded in height and became less pronounced. Our results reveal the importance of molecular redeposition on topology, indicating that the stable morphology of isothermal topographies is a planar morphology on regions of net sublimation, regardless of initial surface shape. A study of parametrically varying temperature profiles for sinusoidal penitentes resulted in the following requirement for penitente growth: the trough temperature must exceed the peak temperature by a threshold value, which notably depends on the surface aspect ratio and peak temperature.
Deciphering the Structural History of Ulysses Fossae, Mars, Using Fault Pattern Analysis
Authors: Shahrzad Stephanie , Bramham Emma K. , Thomas Mark , Piazolo Sandra , Byrne Paul K. , Mortimer Estelle
Published: May 2023

Ulysses Fossae is a faulted region surrounded by lava flows that sits between the major volcanoes of the Tharsis Rise volcanic province on Mars. This area is unique, as it is the only exposure of extensional faulting which can be related to the Olympus Mons volcano and one of the only a few faulted areas relating to the Tharsis Montes. In order to determine the area's structural evolution through time, we mapped all identifiable faults, divided them into 10 fault groups determined by their orientation and morphology, and performed detailed crater size‐frequency analysis of the geological units. We divide the fault groups into two overall types based on their genesis: local diking and regional extension. The complex structural evolution recorded in the extensional faults in Ulysses Fossae is dominated by local dike‐related activity (8/10 fault groups), along with deformation from large, regional scale extensional processes related to the development of the Tharsis province as a whole (2/10 fault groups). Strain values measured across the 1 fault groups vary between 0.4%–2.2%, with the grabens related to regional extension accommodating larger extensional strains than the local dike‐related grabens. The crater size‐frequency distribution analysis of three distinct areas in Ulysses Fossae (UF Dome, UF North, and UF South) revealed that the majority of the faulting in Ulysses Fossae was active during the Early Amazonian.
A Continental‐Scale Estimate of Soil Organic Carbon Change at NEON Sites and Their Environmental and Edaphic Controls
Authors: Hu Jie , Hartemink Alfred E. , Desai Ankur R. , Townsend Philip A. , Abramoff Rose Z. , Zhu Zhe , Sihi Debjani , Huang Jingyi
Published: May 2023

Current carbon cycle models focus on the effects of climate and land‐use change on primary productivity and microbial‐mineral dependent carbon turnover in the topsoil, while less attention has been paid to vertical soil processes and soil‐dependent response to land‐use change along the profile. In this study, a spatial‐temporal analysis was used to estimate soil organic carbon (SOC) change in topsoil/A horizon and subsoil/B horizon at National Ecological Observatory Network (NEON) sites, USA over 30 years. To separate the effects of land‐use, environmental, and edaphic factors on SOC change, space‐for‐time substitution was used in combination with the Continuous Change Detection and Classification algorithm and Structural Equation Modeling. Results showed that (a) under natural vegetation, Spodosols and Inceptisols found in the eastern NEON sites had substantial topsoil SOC accumulation (+0.4 to +1.2 Mg C ha−1 year−1), while Inceptisols and Andisols in the west had a comparable magnitude of topsoil SOC loss (−0.5 to −1.8 Mg C ha−1 year−1); (b) Mollisols and Alfisols in the Central Plains sites were susceptible to significant SOC loss under farming and grazing; (c) Runoff/erosion and leaching potential, vertical translocation, and mineral sorption were the most important factors controlling SOC variation across the NEON sites. Our work could be used to parameterize ecosystem models simulating SOC change.
Lateral Advection of Particulate Organic Matter in the Eastern Indian Ocean
Authors: Kehinde Opeyemi , Bourassa Mark , Kranz Sven , Landry Michael R. , Kelly Thomas , Stukel Michael R.
Published: May 2023

The Argo Abyssal Plain (AAP), south of Java and northwest of Australia in the tropical eastern Indian Ocean, is an oligotrophic region (low in chlorophyll and nutrients), downstream of the Indonesian throughflow. The processes that supply nitrogen to the AAP and support ecosystem production are unknown. Here we quantified lateral advection of particulate organic matter (POM) and the role of this advected POM in supplying new nitrogen (i.e., allochthonous nitrogen supply) to the mixed layer of the AAP using 14 yr of remotely sensed data, combined with sampling undertaken on a research cruise in February 2022. Our results indicate that the average net primary productivity of phytoplankton in this offshore oligotrophic region is 98.5 Gg C d−1 and that lateral advection transports 1.21 Gg C d−1 of particulate organic carbon (POC) into the region. We find that lateral advection of POM within the mixed layer supplies an annual average of 12% (95% C.I. = 5.2%–49%) of allochthonous “new” nitrogen supporting phytoplankton productivity, if regenerated to nutrients through microbial processes. Accounting for lateral transport in the deep euphotic zone, lateral transport supplies an average of 32% (10%–>100%) of new nitrogen, although this calculation is less certain due to inability to constrain subsurface POM fields. Our data suggest that lateral advection is a quantitatively important but not dominant source of nitrogen supporting new production. Overall, approximately half of the lateral transport is driven by transient eddies (mostly during winter) highlighting the importance of mesoscale circulation.
Effects of prenatal exposure to (es)citalopram and maternal depression during pregnancy on DNA methylation and child neurodevelopment
Authors: Olstad Emilie Willoch , Nordeng Hedvig Marie Egeland , Sandve Geir Kjetil , Lyle Robert , Gervin Kristina
Published: May 2023

Studies assessing associations between prenatal exposure to antidepressants, maternal depression, and offspring DNA methylation (DNAm) have been inconsistent. Here, we investigated whether prenatal exposure to citalopram or escitalopram ((es)citalopram) and maternal depression is associated with differences in DNAm. Then, we examined if there is an interaction effect of (es)citalopram exposure and DNAm on offspring neurodevelopmental outcomes. Finally, we investigated whether DNAm at birth correlates with neurodevelopmental trajectories in childhood. We analyzed DNAm in cord blood from the Norwegian Mother, Father and Child Cohort Study (MoBa) biobank. MoBa contains questionnaire data on maternal (es)citalopram use and depression during pregnancy and information about child neurodevelopmental outcomes assessed by internationally recognized psychometric tests. In addition, we retrieved ADHD diagnoses from the Norwegian Patient Registry and information on pregnancies from the Medical Birth Registry of Norway. In total, 958 newborn cord blood samples were divided into three groups: (1) prenatal (es)citalopram exposed (n = 306), (2) prenatal maternal depression exposed (n = 308), and (3) propensity score-selected controls (n = 344). Among children exposed to (es)citalopram, there were more ADHD diagnoses and symptoms and delayed communication and psychomotor development. We did not identify differential DNAm associated with (es)citalopram or depression, nor any interaction effects on neurodevelopmental outcomes throughout childhood. Trajectory modeling identified subgroups of children following similar developmental patterns. Some of these subgroups were enriched for children exposed to maternal depression, and some subgroups were associated with differences in DNAm at birth. Interestingly, several of the differentially methylated genes are involved in neuronal processes and development. These results suggest DNAm as a potential predictive molecular marker of later abnormal neurodevelopmental outcomes, but we cannot conclude whether DNAm links prenatal (es)citalopram exposure or maternal depression with child neurodevelopmental outcomes.