bluuebunny/crossref_metadata_2025_split huggingface dataset:
3d Metal Doping of Core@Shell Wüstite@ferrite Nanoparticles as a Promising Route toward Room Temperature Exchange Bias Magnets
Authors: Muzzi Beatrice , Albino Martin , Petrecca Michele , Innocenti Claudia , Fernández César de Julián , Bertoni Giovanni , Marquina Clara , Ibarra Manuel Ricardo , Sangregorio Claudio 
Published: March 2022

AbstractNanometric core@shell wüstite@ferrite (Fe1−xO@Fe3O4) has been extensively studied because of the emergence of exchange bias phenomena. Since their actual implementation in modern technologies is hampered by the low temperature at which bias is operating, the critical issue to be solved is to obtain exchange‐coupled antiferromagnetic@ferrimagnetic nanoparticles (NPs) with ordering temperature close to 300 K by replacing the divalent iron with other transition‐metal ions. Here, the effect of the combined substitution of Fe(II) with Co(II) and Ni(II) on the crystal structure and magnetic properties is studied. To this aim, a series of 20 nm NPs with a wüstite‐based core and a ferrite shell, with tailored composition, (Co0.3Fe0.7O@Co0.8Fe2.2O4 and Ni0.17Co0.21Fe0.62O@Ni0.4Co0.3Fe2.3O4) is synthetized through a thermal‐decomposition method. An extensive morphological and crystallographic characterization of the obtained NPs shows how a higher stability against the oxidation process in ambient condition is attained when divalent cation doping of the iron oxide lattice with Co(II) and Ni(II) ions is performed. The dual‐doping is revealed to be an efficient way for tuning the magnetic properties of the final system, obtaining Ni‐Co doped iron oxide core@shell NPs with high coercivity (and therefore, high energy product), and increased antiferromagnetic ordering transition temperature, close to room temperature.
Selection of DevOps best test practices: A hybrid approach using ISM and fuzzy TOPSIS analysis
Authors: Rafi Saima , Akbar Muhammad Azeem , Mahmood Sajjad , Alsanad Ahmed , Alothaim Abdulrahman 
Published: March 2022

AbstractTesting is a complex phase in DevOps process due to need of an automated process that provides feedback at different strategies of continuous development and operations pipeline. Software organization face several challenges during the testing phase due to lack of understanding on testing best practices for the DevOps paradigm. The objective of this study is to prioritize DevOps best testing practices, which can facilitate the selection of testing practices during DevOps process. To perform this research, we have extended the work done by Hornbeek, using the 15 DevOps testing practices discussed in his study. First, we categorize the test practices against culture, automation, lean, measurement, and sharing (CALMS) pillars of DevOps adoption principles. Next, a questionnaire‐based survey was conducted to collect feedback from industry practitioners on the DevOps test practices and their categorization against CALMS criteria. Finally, we applied Interpretive Structure Modeling (ISM) to find the interrelationship between CALMS criteria, and fuzzy TOPSIS was used to prioritize the DevOps test practices that will assist practitioners to better manage the testing activities during DevOps process.
Glossar für statistische Analysetechniken
Authors: Glatz Christoph , Prandner Dimitri , Aschauer Wolfgang 
Published: March 2022

ZusammenfassungUm den Zugang zu diesem Buch auch für Personen zu erleichtern, die wenig Erfahrung mit quantitativer Sozialforschung haben, wird in diesem Glossar ein grundlegender Einblick in die Praxis der Umfrageforschung sowie in statistische Analysetechniken gegeben. Wir geben Hinweise, wie man soziale und politische Einstellungen in Umfragen erhebt und welche Möglichkeiten der statistischen Analyse vorliegen. Insbesondere komplexere Verfahren wie Regressionsanalyse, Faktorenanalsen, Reliabilitätsanalysen und Kontrastgruppenanalysen werden näher erklärt.
Soziale Kontakte und Wohlbefinden zu Beginn der Corona-Krise 2020
Authors: Glatz Christoph , Bodi-Fernandez Otto 
Published: March 2022

ZusammenfassungMenschen sind soziale Wesen, weshalb Kontakte zu anderen Personen einen wichtigen Beitrag für das eigene Wohlbefinden leisten. Durch die Corona-Krise dreht sich diese Vorstellung dagegen um – Abstand halten heißt das neue Gebot, um die Gesundheit zu wahren. Vor diesem Hintergrund untersuchen wir in diesem Buchbeitrag den Verlauf von Sozialkontakten und Wohlbefinden, sowie den Zusammenhang zwischen diesen beiden Konstrukten von Ende März bis Anfang Juli 2020. Wie erwartet zeigt sich ein sprunghafter Anstieg physischer sozialer Kontakte seit Anfang Mai und somit seit den damals eingeführten Lockerungsverordnungen. Gleichzeitig verringerten sich die nicht-physischen Sozialkontakte (via Telefon & Internet) seit dem 1. Lockdown kontinuierlich, was auf eine Substitution für physische Sozialkontakte hinweist. Affektives- und kognitives Wohlbefinden zeigen einen kleinen und gleichmäßigen Anstieg über diesen Zeitraum. Weitere Analysen weisen auf einen signifikanten aber geringen Einfluss von physischen Sozialkontakten auf das Wohlbefinden hin – der physische Kontakt zu Freunden und Verwandten führt demnach zu einem geringen Anstieg des Wohlbefindens. Weiterführende Vergleiche zwischen alleinlebenden und nicht-alleinlebenden Österreicher*innen zeigten, dass alleinlebende Personen häufiger auf nicht-physische Sozialkontakte zurückgriffen als physische Sozialkontakte durch restriktive Maßnahmen erschwert wurden.
Konservative Schließung oder neue Solidarität? Wertewandel und Zukunftsvorstellungen in Zeiten der Corona-Krise
Authors: Aschauer Wolfgang , Eder Anja , Höllinger Franz 
Published: March 2022

ZusammenfassungIn aktuellen sozialwissenschaftlichen Analysen wird vielfach angenommen, dass die Covid-19-Pandemie zu tief greifenden gesellschaftlichen Veränderungen führen könnte. Die Schlussfolgerungen sind jedoch nicht einheitlich. Einerseits wird ein gesellschaftlicher Wandel hin zu mehr Solidarität, zu einem stärkeren Sozialstaat und zu ökologischer und ökonomischer Nachhaltigkeit suggeriert, andererseits wird auch auf das Wiedererstarken des Nationalstaates und soziale Schließungsprozesse hingewiesen. In diesem Beitrag untersuchen wir mit einem Fokus auf die aktuelle Values in Crisis Studie 2020 und in Verbindung mit österreichspezifischen Daten aus weiteren repräsentativen Umfragen (z. B. European Social Survey), ob sich ein Wertewandel in Hinblick auf die individuellen Grundwerte nach Schwartz beobachten lässt und wie sich dieser nach Generationen unterscheidet. Anschließend werden die Zukunftserwartungen und -wünsche der Österreicher*innen für die Zeit nach Corona analysiert und der Einfluss von soziodemografischen Faktoren, Werten und Einstellungen auf die Zukunftsvorstellungen untersucht.
Intra-operative ultrasound: does it improve the results of percutaneous repair of acute Achilles tendon rupture?
Authors: Samy Ahmed Mohamed 
Published: March 2022

Abstract
Purpose
Percutaneous repair is a good option for acute Achilles tendon rupture. Although it overcomes the complications of open technique, it carries the risk of sural nerve injury and inadequate repair. In this study, we explore if the use of intra-operative ultrasound with percutaneous technique has any advantageous effect on final results of repair.

Methods
This is a prospective randomized study done between May 2014 and December 2020. It included 91 patients with complete acute Achilles tendon rupture distributed in 2 groups with homogenous clinical and demographic data. Group A (n = 47) included those managed by percutaneous repair with assistant of an intra-operative ultrasound. Group B (n = 44) included those done without the assistant of ultrasound. Post-operative evaluation was done clinically by the American Orthopedic Foot and Ankle Society score, calf muscle circumference and single heel rise test and radiologically by Magnetic Resonance Image.

Results
Patients of both groups reported continuous improvement of the American Orthopedic Foot and Ankle Society score with time. However, patient of group A recorded better functional outcome score at 3 months postoperatively. We recorded longer operative time in group A than those in group B. Continuous improvement of maximum calf circumference was observed in both groups. Satisfactory healing was noticed to happen faster in patients of group A than those of group B. We recorded two cases of re-rupture and two cases of sural nerve injury in group B with no reported complication in group A.

Conclusion
The use of an intra-operative ultrasound with percutaneous repair of acute rupture of Achilles tendon can improve the quality of repair as evidenced by quicker satisfactory healing and earlier regain of activity. Also, it can help in proper localization of sural nerve in relation to lateral edge of Achilles tendon.

Trial registration
Clinical Trials.gov Identifier: NCT04935281.
Poly(vinyl alcohol) membranes-inspired heterocyclic compounds for different applications: synthesis and characterization
Authors: Kandile Nadia G. , Nasr Abir S. 
Published: March 2022

AbstractChemical modification of poly(vinyl alcohol) (PVA) with different monomers is a convention method for the development of its properties. In this study, the new multifunctional membranes (PVA-A)1–3, (PVA-P)1–3, (PVA-AG) and (PVA-PG) were designed and synthesized by the reaction of PVA with heterocyclic compounds [N,Nʹ-bi-α-azido succinimide (A), N-phthalimido-α-azido succinimide (P)] and using glutaraldehyde (G) as cross-linker, respectively. The new membranes were characterized by FT-IR, TGA, SEM and X-ray diffraction. The swelling behavior of the membranes showed that membranes (PVA-P)1–3 exhibited the highest swelling capacity in different solvents. Their antibacterial against (Gram-negative), (Gram-positive) bacteria, and in vitro drug loading and release activities were evaluated. Additionally, metal ions adsorption capacity for copper, cobalt and mercury ions was studied. (PVA-AG) membrane performed the highest inhibitory effect to E. coli, Proteus, S. aureus and B. subtilis bacteria reached 22.9, 25.46, 24.9 and 30.56, respectively. Furthermore, in vitro controlled loading and release of lidocaine, (PVA-A)1 membrane revealed remarkable ability reached 57.37% and 94.59%, respectively. Hydrogel (PVA-AG) showed the highest metal ions (copper, cobalt and mercury) uptake efficiency (64.5, 69.5 and 73), respectively. Based on results, the prepared membranes can be suggested as promising agents for antibacterial, drug delivery systems and metal ions removal from aqueous medium.
Combined PET-CT and MRI for response evaluation in patients with squamous cell anal carcinoma treated with curative-intent chemoradiotherapy
Authors: Adusumilli Pratik , Elsayed Noha , Theophanous Stelios , Samuel Robert , Cooper Rachel , Casanova Nathalie , Tolan Damien J. , Gilbert Alexandra , Scarsbrook Andrew F. 
Published: March 2022

Abstract
Objectives
To assess the effectiveness of fluorine-18 fluorodeoxyglucose (FDG) positron-emission tomography-computed tomography (PET-CT) and magnetic resonance imaging (MRI) for response assessment post curative-intent chemoradiotherapy (CRT) in anal squamous cell carcinoma (ASCC).

Methods
Consecutive ASCC patients treated with curative-intent CRT at a single centre between January 2018 and April 2020 were retrospectively identified. Clinical meta-data including progression-free survival (PFS) and overall survival (OS) outcomes were collated. Three radiologists evaluated PET-CT and MRI using qualitative response assessment criteria and agreed in consensus. Two-proportion z test was used to compare diagnostic performance metrics (sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), accuracy). Kaplan-Meier analysis (Mantel-Cox log-rank) was performed.

Results
MRI (accuracy 76%, PPV 44.8%, NPV 95.7%) and PET-CT (accuracy 69.3%, PPV 36.7%, NPV 91.1%) performance metrics were similar; when combined, there were statistically significant improvements (accuracy 94.7%, PPV 78.9%, NPV 100%). Kaplan-Meier analysis demonstrated significant differences in PFS between responders and non-responders at PET-CT (p = 0.007), MRI (p = 0.005), and consensus evaluation (p < 0.001). Cox regression analysis of PFS demonstrated a lower hazard ratio (HR) and narrower 95% confidence intervals for consensus findings (HR = 0.093, p < 0.001). Seventy-five patients, of which 52 (69.3%) were females, with median follow-up of 17.8 months (range 5–32.6) were included. Fifteen of the 75 (20%) had persistent anorectal and/or nodal disease after CRT. Three patients died, median time to death 6.2 months (range 5–18.3).

Conclusion
Combined PET-CT and MRI response assessment post-CRT better predicts subsequent outcome than either modality alone. This could have valuable clinical benefits by guiding personalised risk-adapted patient follow-up.

Key Points
• MRI and PET-CT performance metrics for assessing response following chemoradiotherapy (CRT) in patients with anal squamous cell carcinoma (ASCC) were similar.
• Combined MRI and PET-CT treatment response assessment 3 months after CRT in patients with ASCC was demonstrated to be superior to either modality alone.
• A combined MRI and PET-CT assessment 3 months after CRT in patients with ASCC has the potential to improve accuracy and guide optimal patient management with a greater ability to predict outcome than either modality alone
Multidisciplinary lifestyle intervention is associated with improvements in liver damage and in surrogate scores of NAFLD and liver fibrosis in morbidly obese patients
Authors: Bischoff Monika , Zimny Sebastian , Feiner Sebastian , Sauter Johannes , Sydor Svenja , Denk Gerald , Nagel Jutta M. , Bischoff Gert , Rust Christian , Hohenester Simon 
Published: March 2022

Abstract
Purpose
Non-alcoholic fatty liver disease (NAFLD) is the hepatic manifestation of the metabolic syndrome. Particularly morbidly obese patients are at risk of developing progressive liver disease. Nutritional and lifestyle intervention is recommended as the standard of care in NAFLD. However, there is a striking lack of evidence to support the efficacy of lifestyle intervention to treat NAFLD in morbidly obese patients. Here, we aimed to assess the impact of lifestyle intervention on NAFLD in the morbidly obese in a real-world setting.

Methods
136 obese patients were included in an industry-independent, multiprofessional lifestyle intervention program with a lead-in phase of 12 weeks of formula diet and a total of 48 weeks intensive counselling. Body weight and markers of the metabolic syndrome were analyzed. Presence of NAFLD was screened for by use of non-invasive markers of fatty liver, non-alcoholic steatohepatitis and liver fibrosis.

Results
Weight loss goals (i.e. > 5% or > 10% of initial body weight, respectively, depending on baseline BMI) were achieved in 89.7% of subjects in the intention-to-treat analysis and 93.9% in the per-protocol analysis. This was associated with a pronounced improvement in serum ALT values. The percentage of subjects who fulfilled non-invasive criteria for fatty liver dropped from 95.2 to 54.8%. Risk of NASH improved and the number of patients at risk of liver fibrosis declined by 54.1%.

Conclusion
Lifestyle intervention was associated with a marked improvement of serum ALT and an improvement of surrogate scores indicative of NAFLD and, importantly, advanced fibrosis, in a real-world cohort of morbidly obese patients.
Characterizing the transition from immune response to tissue repair after myocardial infarction by multiparametric imaging
Authors: Hess Annika , Borchert Tobias , Ross Tobias L. , Bengel Frank M. , Thackeray James T. 
Published: March 2022

AbstractPersistent inflammation following myocardial infarction (MI) precipitates adverse outcome including acute ventricular rupture and chronic heart failure. Molecular imaging allows longitudinal assessment of immune cell activity in the infarct territory and predicts severity of remodeling. We utilized a multiparametric imaging platform to assess the immune response and cardiac healing following MI in mice. Suppression of circulating macrophages prior to MI paradoxically resulted in higher total leukocyte content in the heart, demonstrated by increased CXC motif chemokine receptor 4 (CXCR4) positron emission tomography imaging. This supported the formation of a thrombus overlying the injured region, as identified by magnetic resonance imaging. The injured and thrombotic region in macrophage depeleted mice subsequently showed active calcification, as evidenced by accumulation of 18F-fluoride and by cardiac computed tomography. Importantly, macrophage suppression triggered a prolonged inflammatory response confirmed by post-mortem tissue analysis that was associated with higher mortality from ventricular rupture early after occlusion and with increased infarct size and worse chronic contractile function at 6 weeks after reperfusion. These findings establish a molecular imaging toolbox for monitoring the interplay between adverse immune response and tissue repair after MI. This may serve as a foundation for development and monitoring of novel targeted therapies that may include immune modulation and endogenous healing support.
Attitudes towards Enhanced Recovery after Surgery (ERAS) interventions in colorectal surgery: nationwide survey of Australia and New Zealand colorectal surgeons
Authors: Toh James Wei Tatt , Collins Geoffrey Peter , Pathma-Nathan Nimalan , El-Khoury Toufic , Engel Alexander , Smith Stephen , Richardson Arthur , Ctercteko Grahame 
Published: March 2022

Abstract

Background
Whilst Enhanced Recovery after Surgery (ERAS) has been widely accepted in the international colorectal surgery community, there remains significant variations in ERAS programme implementations, compliance rates and best practice recommendations in international guidelines.

Methods
A questionnaire was distributed to colorectal surgeons from Australia and New Zealand after ethics approval. It evaluated specialist attitudes towards the effectiveness of specific ERAS interventions in improving short term outcomes after colorectal surgery. The data were analysed using a rating scale and graded response model in item response theory (IRT) on Stata MP, version 15 (StataCorp LP, College Station, TX).

Results
Of 300 colorectal surgeons, 95 (31.7%) participated in the survey. Of eighteen ERAS interventions, this study identified eight strategies as most effective in improving ERAS programmes alongside early oral feeding and mobilisation. These included pre-operative iron infusion for anaemic patients (IRT score = 7.82 [95% CI: 6.01–9.16]), minimally invasive surgery (IRT score = 7.77 [95% CI: 5.96–9.07]), early in-dwelling catheter removal (IRT score = 7.69 [95% CI: 5.83–9.01]), pre-operative smoking cessation (IRT score = 7.68 [95% CI: 5.49–9.18]), pre-operative counselling (IRT score = 7.44 [95% CI: 5.58–8.88]), avoiding drains in colon surgery (IRT score = 7.37 [95% CI: 5.17–8.95]), avoiding nasogastric tubes (IRT score = 7.29 [95% CI: 5.32–8.8]) and early drain removal in rectal surgery (IRT score = 5.64 [95% CI: 3.49–7.66]).

Conclusions
This survey has demonstrated the current attitudes of colorectal surgeons from Australia and New Zealand regarding ERAS interventions. Eight of the interventions assessed in this study including pre-operative iron infusion for anaemic patients, minimally invasive surgery, early in-dwelling catheter removal, pre-operative smoking cessation, pre-operative counselling, avoidance of drains in colon surgery, avoiding nasogastric tubes and early drain removal in rectal surgery should be considered an important part of colorectal ERAS programmes.
Raise Caving—A Hybrid Mining Method Addressing Current Deep Cave Mining Challenges
Authors: Ladinig Tobias , Wagner Horst , Karlsson Markus , Wimmer Matthias , Grynienko Michal 
Published: March 2022

AbstractCave mining progresses to depths exceeding 1000 m and ore bodies situated in competent and strong rock masses are nowadays extracted by different cave mining methods. Widely applied caving methods in massive deposits are block and panel caving, inclined caving, and sublevel caving. All caving methods have in common that rock mass caves during extraction of an ore body in a controlled way. As a result, regional stress changes occur, considerable abutment stresses form, and large-scale subsidence and significant seismic energy releases occur. Experience shows that these rock mechanics effects become especially critical at great depths, where primary stress magnitudes reach and exceed rock mass strength, as well as in strong competent rock masses, which require large footprints to enable continuous caving. The presented raise caving method addresses previously mentioned rock mechanics issues. Initially, de-stressing slots are developed from raises with a minimum amount of pre-development. Substantial pillars separate neighboring slots in order to control stress magnitudes and seismicity near slots. The slots provide a stress shadow for production infrastructure so that large-scale mineral extraction can take place in de-stressed ground. As mining progresses, pillars are extracted and hanging wall is allowed to cave. Results of a pre-study conducted together with LKAB have highlighted advantages of raise caving from a rock mechanics, safety, and cost point of view.
Beyond ‘migrant background’: how to select relevant, social justice oriented, and feasible social categories in educational research
Authors: Vietze Jana , Schwarzenthal Miriam , Moffitt Ursula , Civitillo Sauro 
Published: March 2022

Abstract
Across continental Europe, educational research samples are often divided by ‘migrant background’, a binary variable criticized for masking participant heterogeneity and reinforcing exclusionary norms of belonging. This study endorses more meaningful, representative, and precise research by offering four guiding questions for selecting relevant, social justice oriented, and feasible social categories for collecting and analysing data in psychological and educational research. Using a preregistered empirical example, we first compare selected social categories (‘migrant background’, family heritage, religion, citizenship, cultural identification, and generation status) in their potential to reveal participant heterogeneity. Second, we investigate differences in means and relations between variables (discrimination experiences, perceived societal Islamophobia, and national identity) and academic motivation among 1335 adolescents in Germany (48% female, Mage = 14.69). Regression analyses and multigroup SEM revealed differential experiences with and implications of discrimination for academic motivation. Results highlight the need for a deliberate, transparent use of social categories to make discrimination visible and centre participants’ subjective experiences.