bluuebunny/crossref_metadata_2025_split huggingface dataset:
Beam‐squint rectified balanced antipodal Vivaldi antenna with sliced fins and quarter‐wavelength labyrinth director
Authors: Mahalingam M. Sandhana , Ruth Jency Albert , Ramasamy Pandeeswari , Ko Seok‐Bum 
Published: March 2023

AbstractThis paper introduces a gain‐enhanced, beam‐squint rectified balanced antipodal Vivaldi antenna (BAVA) with symmetrically sliced fins and a novel square‐shaped metallic labyrinth director. The proposed antenna operates from 2 to 18 GHz with S11 less than −10 dB maintaining a fractional bandwidth of 160%, realizes 12.564 dBi as maximum gain at 18 GHz, and achieves greater than 3.415 dBi gain throughout the functioning band of frequency. Improvement of broadside gain by reconfiguration of current loops through symmetric slicing of radiating flares and beam‐squint correction using quarter‐wavelength labyrinth director are addressed by the proposed antenna. The maximum realized size of the antenna is 80 × 40 × 0.508 mm3. Consistent radiation patterns are observed at selected frequencies. Numerical evaluation with a full wave simulation tool and consequent experimental validation with a compact antenna test range is performed.
Alkylaluminum/Urea Hybrid Cocatalysts and Their Use in Iron‐Catalyzed Oligomerization of Ethylene
Authors: Zhang Ying , Ye Jian , Jiang Yinzhi , Jiang Shuqin , Xiao Wei , Wei Dongchu 
Published: March 2023

AbstractThe bis(imino)pyridyl iron‐based ethylene oligomerization catalysts have the advantages of mild reaction conditions, high activity and high selectivity to linear α‐olefins. However, barriers, such as high polymer content in the product mixture and large methylaluminoxane (MAO) dosage, are still limitations for the development of these systems at the industrial scale. In this study, new cocatalysts are prepared by the reaction of alkylaluminums with urea and its derivatives, and successfully used to activate iron‐based catalysts. It is found that the type and molar ratio of alkylaluminum and urea have significant influence on the performance of the cocatalysts. The activity of the preferred triisobutylaluminum/urea activated systems reaches more than 3.0 × 108 g (mol‐Fe)−1 h−1, and the polymer content can be controlled to be less than 2 wt.%. Notably, the catalytic system exhibits good high temperature stability, the activity can still reach 1.0 × 108 g (mol‐Fe)−1 h−1 even at 120 °C. Further 1H NMR studies show that alkylaluminum can react with the NH moieties of urea, forming complex alkylaluminum clusters, even aluminoxane‐like structures. This study offers a promising family of cocatalysts, making it possible to simultaneously improve their performance and reduce their cost.
Work limitations and associated factors in rheumatoid arthritis, axial spondyloarthritis, osteoarthritis and fibromyalgia
Authors: Brown Tamara , Hammond Alison , Ching Angela , Parker Jennifer 
Published: March 2023

AbstractIntroductionRheumatic and musculoskeletal diseases (RMD) impact on work participation. The aims of this study were to: examine work limitations of working people with: rheumatoid arthritis, axial spondyloarthritis (axSpA), osteoarthritis, or fibromyalgia using the Workplace Activity Limitations Scale (WALS, a measure of presenteeism); and identify personal, functioning and disability, and work contextual factors associated with presenteeism.MethodsSecondary analysis was conducted of a cross‐sectional survey including work outcome measures (WORK‐PROM study). A literature review identified variables (coded to ICF) to include in multivariable regressions examining factors associated with presenteeism.ResultsModerate to high WALS scores were identified in: 93.60% with FM; 69.90% OA; 65.20% RA; and 46.80% axSpA (n = 822). Similarities in work limitations were noted across conditions, although some more problematic in specific RMD. Participants received help with about a quarter of activities (27%RA; 25%FM; 23%OA; 17%axSpA) and work adaptations for less than a fifth causing difficulty (18%FM; 14%RA; 14%OA; 9%axSpA). Literature review identified 33 variables in the WORK‐PROM dataset to include in multivariable regressions. Factors associated with higher WALS scores were worse: functional limitations, job strain, pain, difficulties with mental‐interpersonal job demands, perceived health status, work‐life balance, greater need for work accommodations and lack of perceived work support.DiscussionThis study extends understanding of work limitations of working people with these four RMD, the extent of help and adaptations received, need for more work accommodation support, and focus on work support, work rehabilitation, and healthy workplace practices to help keep people working.
Factors influencing foot care behaviour among patients with diabetes: An integrative literature review
Authors: Woo Ming Wei Jeffrey , Cui Jiao 
Published: March 2023

AbstractAimThe aim of the study was to examine factors influencing diabetic foot care behaviours (DFCBs) among patients with diabetes.DesignAn Integrative review using the Whittemore & Knafl five‐stage framework.MethodsA systematic search was performed to retrieve relevant peer‐reviewed literature published in English between 2011 and 2021 across three electronic databases: CINAHL, Medline (PubMed) and Scopus. Following the quality appraisal, 35 papers were included in this review.ResultsThis review revealed that patients' DFCBs were suboptimal. Additionally, four emerging themes were identified as the predictors of DFCB, namely: demographic characteristics as predictors of diabetic foot care behaviour; illness beliefs and perceptions as predictors of diabetic foot care behaviour; foot care knowledge as a predictor of diabetic foot care behaviour and foot care education as a predictor of diabetic foot care behaviour. This calls for nurses to devise educational strategies that adequately address these determinants to drive long‐term positive DFCB among patients.
Prognostic value of xenograft engraftment in patients with metastatic high‐risk neuroblastoma
Authors: Aschero Rosario , Castillo‐Ecija Helena , Baulenas‐Farres Merce , Resa‐Pares Claudia , Jimenez‐Cabaco Ana , Rodriguez Eva , Monterrubio Carles , Perez‐Jaume Sara , Suñol Mariona , Chantada Guillermo L. , Lavarino Cinzia , Mora Jaume , Carcaboso Angel M. 
Published: March 2023

AbstractBackgroundSuccessful engraftment of human cancer biopsies in immunodeficient mice correlates with the poor prognosis of patients. This was reported 30 years ago for children with neuroblastoma, but the standard of care treatment evolved significantly during the last 15 years, leading to improved survival of these patients. Here, we evaluated the association of patient‐derived xenograft (PDX) engraftment and prognosis in patients receiving up‐to‐date treatments for cancers classified as metastatic (stage M) high‐risk neuroblastoma (HR‐NB) by the International Neuroblastoma Risk Group Staging System (INRGSS).MethodsWe obtained biopsies from patients with stage M HR‐NB. We inoculated biopsy fragments subcutaneously in mice. We studied the association of PDX engraftment with event‐free survival (EFS) and overall survival (OS) of patients.ResultsSince 2009, we established 17 PDX from 97 samples of 66 patients with stage M HR‐NB, with a follow‐up of at least two years. Factors associated with higher probability of engraftment were the death as outcome (p = .0006) and the amplification of the gene MYCN in tumors (p = .0271). Patients whose biopsies established a PDX had significantly shorter EFS and OS (p = .0039 and .0002, respectively) than patients whose samples did not engraft. The association of PDX engraftment and OS was significant in patients without MYCN amplification (p = .0041), but not in patients with MYCN amplification (p = .2707).ConclusionPositive PDX engraftment is a factor related to poor prognosis and fatal outcome in patients with stage M HR‐NB treated with up‐to‐date therapies.
The crystallinity of chemically bonded PA‐PTFE‐oil compounds by X‐ray diffraction and DSC
Authors: Nguyen Thanh Duong , Farshchi Negin , Ulbricht Tim Johannes Thomas , Leopold Anne‐Katrin , Schmidt Thomas , Uhlig Kai , Stommel Markus , Voit Brigitte , Gedan‐Smolka Michaela 
Published: March 2023

AbstractOne of the major shortcomings of compounding polyamide (PA), polytetrafluoroethylene (PTFE), and olefinic oils is the fact that they are incompatible. To overcome this issue, using energy radiation in the presence of oxygen leads to the breakage of the PTFE chain to generate hydrophilic functional groups (COF, COOH) and peroxy radicals. The created functional groups and radicals can be used to induce a chemical bond between PA and PTFE as well as between PTFE and olefinic oil molecules. In addition, the hardness of compounds significantly influences the application of materials as solid‐lubricant. It is well known that crystallinity affects the hardness of materials. In the presented study, the effects of the chemical bonding PA‐PTFE/PA‐PTFE‐oil on the crystallization behavior of various types of PA in chemically bonded PA‐PTFE‐oil‐chemically bonded compounds, which were prepared by reactive two‐step extrusion, were investigated via DSC and X‐ray diffraction. The crystallite size of PA46 and PA66 in PA‐PTFE‐chemically bonded (cb) compounds was significantly increased compared with pure PA. At the same time, the d‐spacings of the PA segment in PA‐PTFE compounds were significantly narrower. Due to the chemical coupling, the compounds showed a slight change in hardness compared with pure PA.
Evaluating posttraumatic stress in young adult cancer survivors: Implications of revised DSM‐5 traumatic event criteria
Authors: Recklitis Christopher J. , Michaud Alexis , Blackmon Jaime Elizabeth , Orsillo Susan , Chang Grace 
Published: March 2023

AbstractObjectiveThe Diagnostic and Statistical Manual for Psychiatric Diagnoses (DSM‐5) significantly narrowed conditions under which life‐threatening illnesses meet qualifying traumatic event (QTE) criteria for posttraumatic stress disorder (PTSD). To investigate the impact of this change on identification of PTSD in young adult cancer survivors (YACS), we compared prevalence of QTE exposure using DSM‐5 and earlier DSM‐IV criteria.MethodsThe Structured Clinical Interview for the DSM‐5 (SCID‐5) was customized for study goals and administered to a convenience sample of 250 YACS ages 18–40 followed at a single cancer center.ResultsThe SCID‐5 was well‐tolerated by participants and estimated duration was brief (33 min; range 12–75). Only 35 interviews (14%) presented complex scoring questions. 168 participants (67.2%) identified cancer as their “most stressful or traumatic experience.” Applying DSM‐IV criteria, 227 YACS (90.8%) reported any QTEs; prevalence was significantly reduced following more restrictive DSM‐5 QTE criteria, with only 124 YACS (49.6%) reporting ≥1 QTE (z = −9.68, p < 0.001).ConclusionsThe SCID‐5 can be successfully adapted to assess QTEs in YACS following both DSM‐IV and DSM‐5 criteria. DSM‐5 criteria significantly limit prevalence of QTE exposures compared with DSM‐IV. As the majority of YACS identify cancer as their most stressful life event, it is critically important to investigate its impact on their psychological functioning. Until more is known about how PTSD symptoms may arise after cancer, clinicians and researchers should adapt PTSD assessments to systematically evaluate the role of cancer as a traumatic event that may lead to PTSD symptoms in YACS.
Disentangling Phase and Morphological Evolution During the Formation of the Lithium Superionic Conductor Li10GeP2S12
Authors: Lu Xin , Windmüller Anna , Schmidt Dana , Schöner Sandro , Schierholz Roland , Tsai Chih‐Long , Kungl Hans , Liao Xunfan , Yu Shicheng , Tempel Hermann , Chen Yiwang , Eichel Rüdiger‐A. 
Published: March 2023

AbstractThe structural and morphological changes of the Lithium superionic conductor Li10GeP2S12, prepared via a widely used ball milling‐heating method over a comprehensive heat treatment range (50 – 700 °C), are investigated. Based on the phase composition, the formation process can be distinctly separated into four zones: Educt, Intermediary, Formation, and Decomposition zone. It is found that instead of Li4GeS4–Li3PS4 binary crystallization process, diversified intermediate phases, including GeS2 in different space groups, multiphasic lithium phosphosulfides (LixPySz), and cubic Li7Ge3PS12 phase, are involved additionally during the formation and decomposition of Li10GeP2S12. Furthermore, the phase composition at temperatures around the transition temperatures of different formation zones shows a significant deviation. At 600 °C, Li10GeP2S12 is fully crystalline, while the sample decomposed to complex phases at 650 °C with 30 wt.% impurities, including 20 wt.% amorphous phases. These findings over such a wide temperature range are first reported and may help provide previously lacking insights into the formation and crystallinity control of Li10GeP2S12.
When literacy ate language: An analysis of a research‐based literacy intervention for designated English Learners
Authors: Morita‐Mullaney Trish , Gao Fang , Zhang Rong 
Published: March 2023

AbstractScripted literacy programs are frequently used with designated English learners (ELs) as an intervention to address below–grade‐level reading comprehension. Most literacy programs lack an explicit focus on oral language, vocabulary in use, and immersive writing, needed areas to improve reading comprehension and English proficiency among designated ELs. Literacy interventions often work in tandem with English as a second language (ESL) instructional delivery or as a substitute and are staffed with personnel trained in reading interventions, but do not necessarily involve the principles of English language development or multilingualism. In this case study, the researchers examine a literacy intervention and how it is interpreted and implemented by elementary reading specialists. Findings demonstrate that reading teachers following the literacy intervention protocol fostered oral language and vocabulary, yet the emphasis was on reading, with very little time focused on writing. Implications point to the need for reading programs to conceptualize their teaching within a framework of English language development and multilingualism, instead of defaulting to reading interventions alone. A mapping in collaboration with general education, ESL, and reading teachers is needed to foster congruence across literacy and language learning. The authors call upon stakeholders implementing literacy programs to conceptualize multilingual language and literacy resources that encompass oral language, vocabulary, and immersive writing.
Einleitung
Authors: Lessky Franziska 
Published: March 2023

ZusammenfassungBildung gilt nach wie vor als ‚vererbt‘: Das Bildungsniveau der Eltern bestimmt maßgeblich das Bildungsniveau des Kindes und damit auch dessen Wahrscheinlichkeit, ein Studium aufzunehmen (OECD 2020, 2017; Unger et al. 2020; O'Shea 2016; Marginson 2016). Doch wie gestalten sich Bildungswege jener Personen, die als Erste innerhalb ihrer Familie ein Studium absolvieren (Firstin-Family Studierende), und deren Bildungserfolg damit nicht als elterliches Erbe im Sinne der sozialen Reproduktion betrachtet werden kann? Wie nehmen diese Studierenden, die innerhalb ihrer Familie nicht auf studienbezogene Erfahrungen zurückgreifen können, ihr Studium wahr? Diese Fragen stehen im Zentrum der vorliegenden Dissertation.
Quantum gravity bounds on $$ \mathcal{N} $$ = 1 effective theories in four dimensions
Authors: Martucci Luca , Risso Nicolò , Weigand Timo 
Published: March 2023

Abstract
We propose quantum gravitational constraints on effective four-dimensional theories with $$ \mathcal{N} $$
N
= 1 supersymmetry. These Swampland constraints arise by demanding consistency of the worldsheet theory of a class of axionic, or EFT, strings whose existence follows from the Completeness Conjecture of quantum gravity. Modulo certain assumptions, we derive positivity bounds and quantization conditions for the axionic couplings to the gauge and gravitational sector at the two- and four-derivative level, respectively. We furthermore obtain general bounds on the rank of the gauge sector in terms of the gravitational couplings to the axions. We exemplify how these bounds rule out otherwise consistent effective supergravity theories as theories of quantum gravity. Our derivations of the quantum gravity bounds are tested and further motivated in concrete string theoretic settings. In particular, this leads to a sharper version of the bound on the gauge group rank in F-theory on elliptic four-folds with a smooth base, which improves the known geometrical Kodaira bounds. We furthermore provide a detailed derivation of the EFT string constraints in heterotic string compactifications including higher derivative corrections to the effective action and apply the bounds to M-theory compactifications on G2 manifolds.
Vanishing short multiplets in rank one 4d/5d SCFTs
Authors: Song Jaewon 
Published: March 2023

Abstract
We study the short multiplet spectrum in 4d $$ \mathcal{N} $$
N
= 2 superconformal theories of low rank using the full superconformal indices and the selection rules from the superconformal representation theory. We find a universal expression for the leading terms for the superconformal index of rank one H0, H1, H2, D4, E6, E7 theories. From this result, we argue that certain short multiplets appear in the operator product expansions involving stress-tensor, conserved current, and Coulomb branch operator vanish. We also apply the same procedure to 5d superconformal theories and find that E1 theory has vanishing short multiplets analogous to that of the H1 theory.
Origami and Descriptive Geometry: Tangible Models to Enhance Spatial Skills
Authors: Zich Ursula 
Published: March 2023

AbstractThe use of tangible models to enhance spatial skills and geometric thinking is common practice in architects’ and mathematicians’ curricula. Thanks to its design/folding, origami is a powerful tool for transversal didactic experiences between drawing and geometry, where we find the ideal context in which to verify its effectiveness.
Dermatoskopie von granulomatösen und Autoimmunerkrankungen der Haut
Authors: Király Zsófia , Róbert Lili , Joura Marie Isolde , Hidvégi Bernadett 
Published: March 2023

ZusammenfassungDie Dermatoskopie ist ein leicht zugängliches, nichtinvasives Diagnoseinstrument, das ursprünglich zur Unterscheidung von gutartigen und bösartigen Hauttumoren eingesetzt wurde. Mit dem Dermatoskop ist nicht nur der Pigmentgehalt von Nävi beurteilbar, sondern auch bei verschiedenen anderen Dermatosen können unterschiedliche, charakteristische Strukturen, wie z. B. Schuppen, Follikelöffnungen oder Gefäße, beurteilt werden. Die Erkennung dieser Muster kann die Diagnose von entzündlichen oder infektiösen dermatologischen Erkrankungen erleichtern. Das Ziel dieses Beitrags ist, die unterschiedlichen dermatoskopischen Merkmale granulomatöser und autoimmuner Hautkrankheiten zu beschreiben. Die Diagnose granulomatöser Hauterkrankungen basiert auf der histopathologischen Untersuchung. Das dermatoskopische Bild dieser Erkrankungen (kutane Sarkoidose, Granuloma anulare, Necrobiosis lipoidica und granulomatöse Rosazea) weist viele Gemeinsamkeiten auf, jedoch gibt es auch einige Unterschiede zwischen den Dermatosen zu beachten, v. a. dem Granuloma anulare. Die Eckpfeiler der Diagnose von Autoimmunerkrankungen der Haut (zirkumskripte Sklerodermie, systemische Sklerose, Dermatomyositis, kutaner Lupus erythematodes) sind das klinische Bild, die Immundiagnostik und die Histologie, jedoch kann die Dermatoskopie den Diagnoseprozess und die Nachsorge der Patienten unterstützen. Bei Krankheiten, bei denen vaskuläre Anomalien eine wichtige Rolle in der Pathogenese spielen, wird die Videokapillaroskopie zur Untersuchung der Mikrozirkulation an den Kapillaren des Nagelfalzes eingesetzt. Die Dermatoskopie kann in der täglichen klinischen Praxis ein leicht zugängliches Diagnoseinstrument für granulomatöse und autoimmune Hautkrankheiten sein. Obwohl in vielen Fällen eine Biopsie unvermeidlich ist, können die eindeutigen dermatoskopischen Strukturen den diagnostischen Prozess unterstützen.
Correction to: Production and applications of fluorobody from redox-engineered Escherichia coli
Authors: Srila Witsanu , Min Thae Thae , Sumphanapai Thitima , Rangnoi Kuntalee , Berkmen Mehmet , Yamabhai Montarop 
Published: March 2023

AbstractThe article “Production and applications of fluorobody from redox‑engineered Escherichia coli” was originally published Online First without open access. After publication in volume 107, issue 5-6, page 1959–1970, the author decided to opt for Open Choice and to make the article an open access publication.
Decreased expression of prolyl hydroxylase 1 is associated with poor prognosis in colorectal cancers
Authors: Melling Nathaniel , Grass Julia , Reeh Matthias , Tachezy Michael , Blessmann Marco , Izbicki Jakob R. , Grupp Katharina 
Published: March 2023

Abstract
Background
Prolyl hydroxylase 1 (PHD1) is a prognostic marker in several cancers.

Aims and scopes
This study was undertaken to elucidate the clinical relevance of PHD1 in colorectal cancer (CRC) prognosis.

Materials and methods
We compared PHD1 expression on a tissue microarray (TMA) containing samples from 1800 CRCs with corresponding clinicopathological tumor variables and patient survival.

Results
While PHD1 staining was always high in benign colorectal epithelium, high PHD1 staining was detectable in only 71.8% of CRCs. Low PHD1 staining was associated with advanced tumor stage (p = 0.0101) and shortened overall survival in CRC patients (p = 0.0011). In a multivariable analysis including tumor stage, histological type and PHD1 staining revealed tumor stage and histological type (p < 0.0001 each), but also PHD1 staining (p = 0.0202) to be independent prognostic markers for CRC.

Conclusions
In our cohort, loss of PHD1 expression independently identified a subset of CRC patients with poor overall survival and might, thus, be a promising prognostic marker. PHD1 targeting may even allow for specific therapeutic approaches for these patients.
First Diels–Alder reaction of a N-nitrogen-substituted iminium ion as dienophile furnishing N-amino-substituted 1,2,5,6-tetrahydropyridines
Authors: Gamper Michael , Gstach Hubert , Schantl Joachim G. 
Published: March 2023

AbstractThe exploratory and preliminary work on the reaction of 1-(methoxydiphenylmethyl)-2-methyldiazene with 1,3-dienes reveals a remarkable dichotomy furnishing different heterocyclic Diels–Alder products depending on the presence or absence of water. In contrast to the acid-induced hydrolysis of the N,O-ketal starting material with 1,3-dienes furnishing 1-methyl-1,2,3,6-tetrahydropyridazines (preceding communication), the same acid-promoted reaction albeit under exclusion of water affords N-(methyleneamino)-1,2,5,6-tetrahydropyridines. The serendipitous discovery of the novel 1,2,5,6-tetrahydropyridines was corroborated by an alternative and independent synthesis providing the in situ generated formaldehyde benzophenone azine and its conjugate acid, 2-(diphenylmethylene)-1-methylenehydrazin-1-ium ion. The protonated azine serving as the putative dienophile resembles the first example of an N-nitrogen-substituted iminium ion employed as a dienophile in a bona fide normal electron-demand Diels–Alder reaction.
Graphical abstract