bluuebunny/crossref_metadata_2025_split huggingface dataset:
Identity, Citizenship and the Teaching Profession: Theoretical Insights in the Study of Zambian Teachers Living with Human Immune–deficiency Virus (HIV)
Authors: Mulubale Sanny , Bwalya Katongo , Mundando Janet 
Published: March 2022

This article discusses HIV positive teachers’ medicalisation in the Zambian context. It makes a theoretical appraisal of the dynamics of health in this HIV treatment era, viewing the era as leaving the AIDS pandemic between two streams: a disappearing tragedy and a treatable illness with latent psychological, social and economic effects [1]. Teacher training, teachers’ economic status, their use of effective pedagogy and many other factors have been chronicled extensively by various scholars across disciplines in research on education in developing countries. However, teachers’ experiences of illness and health conditions, as key actors in implementing the development agenda of many countries in Africa, have received very limited attention. The HIV/AIDS burden in Sub-Saharan Africa (SSA) is higher than available resources to deal with the pandemic effectively [2] while the number of people living with the virus and on ART in SSA countries, such as Zambia, remains high [3]. The above proposition in this paper is supported by three fundamental concepts which can be surmised as: governmentality and identity. These two concepts – when effectively synthesised – offer new ways of understanding the medical solutions, normalcy, and their limits in the everyday living of teachers who are on ART. Based on this theoretical analysis and its relation to existing empirical data, the central argument in the paper is that teachers’ daily lives seem to be filled with the socio-political and economic consequences of HIV medicalisation and that these consequences seem to shape and limit how teachers manage and make sense of their acquired ‘therapeutic citizenship’ status.
Assessing Pre-Service Teachers’ Person-Centered Attitudes: Validity Evidence for the APBS Instrument Based on Internal Structure
Authors: Teistler Nadja 
Published: March 2022

Abstract
Person-centered teacher behavior is positively related to cognitive and affective-motivational student outcomes. Although underlying teacher attitudes are thought to be of great importance for person-centered teacher-student relationships, this aspect has not been considered in empirical studies to date. This study examined the internal structure and reliability of a new self-report measure assessing attitudes on person-centered behavior toward students (APBS) in a sample of 363 German pre-service teachers aged 18-40 years (M = 22.28, SD = 3.48; 72.7% female). Exploratory factor analyses and internal consistency analyses based on polychoric correlations provided evidence for a theoretically grounded four-factor model with “unconditionality” (α = .91), “empathic understanding” (α = .92), “trust” (α =.89) and “genuineness” (α = .83) explaining 46% of the total variance. Interfactor correlations ranged between .53 and .72. There is thus preliminary evidence that the APBS test scores can be interpreted as intended. However, further validation studies are required to replicate the internal structure using confirmatory factor analyses and to examine the relations between APBS test scores and external variables. The instrument can be used in research in the field of teacher-student relationships as well as in teacher education courses addressing participants’ educational attitudes.
Adhesive wear behavior of gas tungsten arc welded FeB-FeMo-C coatings
Authors: Yaz Mehmet 
Published: March 2022

Abstract
In this article, a gas tungsten arc welding is used as a high energy density beam to form a surface over 0.15% carbon steel with FeB, FeMo, and graphite powders. The microstructure, microhardness, and dry-sliding wear behavior of the composite coating were investigated using optical micrography, X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectrometry. Microstructural investigations reveal that FeB-reinforced coating exhibited a homogeneous microstructure that consists of dendrites and eutectic. A lot of types of carbide and borides were formed. MoB4, Fe2MoC, B8C, Mo2BC, MoB, Fe3Mo, Fe3B, B25C, Fe7C3, FeB, Mo2B5, and MoC were seen in coated surfaces. Graphite iron boride coatings obtained by the gas tungsten arc welding process improved the wear resistance of carbon steel.
Application of machine vision-based NDT technology in ceramic surface defect detection – a review
Authors: Dong Guanping , Sun Shanwei , Wang Zixi , Wu Nanshou , Huang Pingnan , Feng Hao , Pan Minqiang 
Published: March 2022

AbstractFor its good mechanical, thermal, and chemical property, ceramic materials are widely used in construction, chemical industry, electric power, communication and other fields. However, due to its particularity and complex production process, quality problems usually occur, of which the most common one is surface defects. For ceramic products, the defects are usually small and complicated, and manual methods are difficult to ensure the accuracy and speed of detection. Relevant researchers have proposed a variety of machine vision-based ceramic defect detection methods, but these methods still need to break through in solving the key problems of ceramic surface glaze reflection, complex detection environment, low algorithm efficiency and low real-time performance. To this end, this article reviews the application status of machine vision on ceramic surface defect detection in recent years, summarizes and analyzes the existing non-destructive testing (NDT) technology method, and points out the main factors that affect the development of ceramic surfaces defect detection technology and puts forward the corresponding solutions.
Tribological and adhesion properties of microwave-assisted borided AISI 316L steel
Authors: İpek Ayvaz Safiye , Aydin İbrahim 
Published: March 2022

Abstract
In this study, AISI 316L stainless steel alloy samples were borided with powder-pack boriding method using Ekabor II powder with the support of a microwave furnace with a power of 2.9 KW and a frequency of 2.45 GHz. Boriding was carried out at 850, 900 and 950 °C temperatures for 2, 4 and 6 h of operation. A distinct diffusion barrier consisting of Fe–Ni–Si elements was detected in borided samples at 950 °C for 4 and 6 h. As a result of the Daimler Benz Rockwell-C adhesion tests, regions with insufficient adhesion strength were detected in these samples. In other samples, adhesion qualities between boride layers and substrate were in the range of HF1–HF3. The lowest specific wear rates were determined as 5.208 (mm3 Nm−1) × 10−6 and 5.210 (mm3 Nm−1) × 10−6 for the samples borided for 6 h at 850 °C and 4 h at 900 °C, respectively. It was determined that the increase in thickness of the brittle FeB compound increased the wear with the three-body abrasive wear mechanism.
Coronaviruses and their relationship with multiple sclerosis: is the prevalence of multiple sclerosis going to increase after the Covid-19 pandemia?
Authors: Lima Maria , Aloizou Athina-Maria , Siokas Vasileios , Bakirtzis Christos , Liampas Ioannis , Tsouris Zisis , Bogdanos Dimitrios P. , Baloyannis Stavros J. , Dardiotis Efthimios 
Published: March 2022

Abstract
The purpose of this review is to examine whether there is a possible (etiological/triggering) relationship between infection with various Coronaviruses, including Severe Acute Respiratory Syndrome-related Coronavirus-2 (SARS-CoV-2), the virus responsible for the Coronavirus disease-19 (Covid-19) pandemia, and Multiple Sclerosis (MS), and whether an increase of the prevalence of MS after the current Covid-19 pandemia should be expected, examining new and preexisting data. Although the exact pathogenesis of MS remains unknown, environmental agents seem to greatly influence the onset of the disease, with viruses being the most popular candidate. Existing data support this possible etiological relationship between viruses and MS, and experimental studies show that Coronaviruses can actually induce an MS-like demyelinating disease in animal models. Findings in MS patients could also be compatible with this coronaviral MS hypothesis. More importantly, current data from the Covid-19 pandemia show that SARS-CoV-2 can trigger autoimmunity and possibly induce autoimmune diseases, in the Central Nervous System as well, strengthening the viral hypothesis of MS. If we accept that Coronaviruses can induce MS, it is reasonable to expect an increase in the prevalence of MS after the Covid-19 pandemia. This knowledge is of great importance in order to protect the aging groups that are more vulnerable against autoimmune diseases and MS specifically, and to establish proper vaccination and health policies.
Lean Leadership
Authors: Dombrowski Uwe , Mielke Tim 
Published: March 2022

Abstract
„Veränderung entsteht durch Führung“ (W.E. Deming) – Diese Erkenntnis setzt sich auch im Zusammenhang mit Ganzheitlichen Produktionssystemen (GPS) durch. Lean Leadership könnte das fehlende Bindeglied zwischen der Anwendung von Lean-Methoden und einem nachhaltigen GPS sein. Aus der Literatur, Studienergebnissen und den praktischen Erfahrungen aus zahlreichen GPS-Einführungen wurden einige Indikatoren für Lean Leadership abgeleitet. Diese ließen sich aus Empfehlungen für eine erfolgreiche Führung in GPS, vor allem aber auch aus Fehlern und Defiziten gewinnen. Aus den Indikatoren konnten Anforderungen formuliert werden, die den fünf Gestaltungsprinzipien Verbesserungskultur, Selbstentwicklung, Qualifizierung, Gemba und zielorientierte Führung zugeordnet wurden. Diese Anforderungen sollen Führungskräften als Richtschnur für die praktische Umsetzung dienen.
Lernfabriken in Deutschland
Authors: Kreimeier Dieter , Prinz Christopher , Morlock Friedrich 
Published: March 2022

Abstract
Lernfabriken oder auch Learning Factories sind in steigender Anzahl in Deutschland zu finden. Sie helfen dabei, sowohl Mitarbeiter als auch Studenten in einem realitätsnahen Fertigungsumfeld zu qualifizieren und in Schwerpunkten, wie z. B. dem Lean Management, zu Experten auszubilden. Wissenstransfer durch Lernfabriken erfolgt dabei auf Basis praxisorientierter Planspiele und ausgewählter Methoden aus der Didaktik. In diesem Beitrag wird eine Übersicht gegeben, wie die Landschaft der Lernfabriken in Deutschland gestaltet ist und wie sich die Lernfabrik des Lehrstuhls für Produktionssysteme an der Ruhr-Universität Bochum von diesen differenziert. Dabei werden sowohl die vorherrschende Lernumgebung diskutiert, als auch die innovativen Ansätze der LPS-Lernfabrik erörtert, wie z. B. die Lernfabrik für Ressourceneffizienz, die Seminare zum Thema Betriebliche Mitbestimmung und Lean Management-Schulungskonzepte.
Szenariogestützte Produktplanung elektrischer Antriebssysteme
Authors: Sachs Carolina , Herrmann Florian , Reiser Marco 
Published: March 2022

Abstract
Die Elektrifizierung des Antriebsstrangs von Kraftfahrzeugen steht derzeit im Fokus zahlreicher Vorhaben. Eine Vielzahl von Einflussfaktoren erschwert jedoch die Planung und Auswahl eines auf die Anforderungen der jeweiligen Anwendung geeigneten Antriebssystems. Der vorliegende Beitrag stellt daher einen Ansatz zur strategischen Produktplanung und -auswahl durch den Einsatz von Werkzeugen der Szenariotechnik dar. Am Anwendungsbeispiel elektrischer Antriebssysteme für Personen- und Nutzfahrzeugen wird das Vorgehen exemplarisch vorgestellt.*
Auftragseinlastung in Überlastsituationen
Authors: Kompa Stefan , Kraut Andreas , Meißner Jan 
Published: March 2022

Abstract
Im Rahmen dieses Beitrags werden Empfehlungen zur Gestaltung einer selbstoptimierenden Auftragseinlastung in Überlastsituationen sowie deren praxisnahe Umsetzung dargestellt. Die praktische Umsetzung sowie die Realisierung der konzipierten Vorgehensweise geschehen im Rahmen des AiF-Projekts „SelfOrder“ des FIR an der RWTH Aachen. Den Ordnungsrahmen des Gestaltungsansatzes bildet der sogenannte „High Resolution Production Management-Ansatz“.
Systemsimulation in der Umformtechnik
Authors: Schenke Christer-Clifford , Penter Lars , Hardtmann André , Großmann Knut 
Published: March 2022

Abstract
Die Anwendung der Simulation in der Umformtechnik beschränkt sich bislang vor allem auf den Einsatz quasi-statischer Modelle zur Unterstützung der Prozessgestaltung. Durch neuere Entwicklungen in der Antriebstechnik stehen heute Pressen mit erheblich gesteigertem Bewegungsvermögen zur Verfügung, was zu angepassten Geschwindigkeitsverläufen und letztlich zu einer erhöhten Dynamik bei der Durchführung von Umformprozessen führt. Die vorgestellten Arbeiten* untersuchen Wege zu einer durchgehenden virtuellen Analyse von Umformprozessen unter Berücksichtigung der statischen und dynamischen Wechselwirkungen zwischen Maschine und Prozess.
Expression of the EGFR-RAS Inhibitory Proteins DOK1 and MTMR7 and its Significance in Colorectal Adenoma and Adenoma Recurrence
Authors: Gutting Tobias , Merkel Andreas , Fink David J , Hetjens Svetlana , Weidner Philip , Yu Yanxiong , Kähler Georg , Ebert Matthias P. , Gaiser Timo , Burgermeister Elke , Belle Sebastian 
Published: March 2022

Background and Aims: Colorectal adenomas are precursor lesions for colorectal cancer (CRC), a major cause of cancer-related death. Despite all molecular insights, there are still unknown variables in the development of CRC as well as uncertainties regarding adenoma recurrence after resection. We aimed to characterize the expression of docking protein 1 (DOK1) and myotubularin-related protein 7 (MTMR7), which share inhibiting functions on EGFR-RAS-signalling, a major oncogenic driver in CRC, and their association with clinical variables and adenoma recurrence.
Methods: This observational study is based on clinical data obtained from patients who underwent routine endoscopy and consecutive follow-up examinations. Immunohistochemistry was conducted both in dysplastic tissue and adjacent non-dysplastic mucosa followed by microscopical assessment. Recurrence was differentiated between local, segmental and distant relapse.
Results: A total of 56 patients (23 females) gathering 96 adenomas/polyps were included. 36 patients experienced a metachronous lesion, 23 patients had simultaneous lesions in their index endoscopy. Female patients showed lower levels of MTMR7 in adenomas (p=0.0318). Adenomas of young patients showed lower DOK1 than those of older patients (p=0.0469). Big adenomas showed a higher expression of DOK1 than small lesions (p=0.0044). In serrated lesions, DOK1 was reduced (p=0.0026) and correlated with the quantity of lesions (p < 0.001). MTMR7 was significantly reduced in distant (p=0.05) and local segmental recurrence (p=0.0362), while DOK1 showed higher expression in recurrence (p=0.0291).
Conclusions: We found ambivalent results regarding the role of the markers as potential tumor suppressors, implying a context-dependent function of these molecules which might change in the course of time. DOK1 may play an inhibiting role in the serrated pathway. Remarkably, molecular markers have the potential to predict recurrence, since a combined expression analysis of high DOK1 and low MTMR7 correlated with the likelihood of segmental adenoma recurrence.
The Role of Psychotherapy in the Treatment of Patients with Non– alcoholic Fatty Liver Disease and Obstructive Sleep Apnea
Authors: Filipovic Branka F , Latas Milan , Kiurski Stanimir , Al Kiswani Dezbal , Filipovic Natasa , Marjanovic-Haljilji Marija , Laketic Darko , Aksic Milan , Markovic Branka , Kapor Suncica , Kapor Slobodan , Markovic Olivera , Starcevic Ana 
Published: March 2022

Background and Aims: Non-alcoholic fatty liver disease (NAFLD) is a metabolic disease with extensive multi- organ involvement, whose extra-hepatic manifestations include diabetes mellitus type 2, cardiovascular disease, obstructive sleep apnea (OSA), chronic kidney disease, and polycystic ovary syndrome. Our hypothesis was that there was a strong psychological component in NAFLD and OSA suffering patients and that psychotherapy would be helpful in the treatment of the mentioned diseases.
Methods: Of 144 initially selected patients (with NAFLD, obesity and OSA), 32 patients agreed to undergo psychotherapy, and 31 therapy-naive NAFLD and OSA patients agreed to participate as controls.
Results: Psychological evaluation revealed that self-esteem rose significantly after one-year psychotherapy (p=0.005). Body mass index (BMI) was significantly lower after psychotherapy, followed by the changes in laboratory results. Binomial logistic regression revealed that the reduction of BMI in high probability led to self-esteem improvement (p=0.03).
Conclusions: Psychotherapy was an efficient supporting method in the treatment of patients with NAFLD, obesity and OSA. It raised self-esteem and stimulated the motivation for further treatment of obesity, as one of the important factors for NAFLD and OSA. Still, it is advisable to use psychotherapy in combination with other clinical methods of treatment.
Visceral Varicella-Zoster Virus Infection in An Immunocompromised Patient: Uncommon Endoscopic Differential Diagnosis
Authors: Moser Benjamin , Fischer Christian 
Published: March 2022

Varicella-Zoster virus (VZV) infection is well-known for its dermatological appearances, such as chickenpox and shingles. In addition to its dermal disease, we report a case of visceral dissemination of VZV in immunocompromised patients.
A 38-year-old male Caucasian with a history of bone marrow transplantation due to diffuse large B-cell-lymphoma presented himself with severe abdominal pain. Immediate endoscopy revealed numerous gastric and duodenal ulcerations, while histological and molecular evaluation on tissue biopsies and blood samples confirmed VZV infection. Positive serological findings and history of chickenpox during childhood supported visceral VZV dissemination due to reactivation of VZV. The patient received Aciclovir treatment and fully recovered.
This case illustrates that visceral dissemination of VZV may lead to acute abdominal pain due to severe mucosal ulcerations even in the absence of dermatological manifestations. Early endoscopic evaluation may therefore be crucial and the only means to immediately guide differential diagnosis, especially in immunocompromised patients. Characteristic histomorphological findings from mucosal ulcerations should lead to the immediate initiation of antiviral therapy and specific molecular evaluation in order to avoid detrimental spread of visceral VZV infection.
Clinical Relevance of Anti-Gliadin Seropositivity in the Ageing Population: A Long-term Follow-up Study
Authors: Ruuskanen Anitta Tellervo , Luostarinen Liisa , Huhtala Heini , Valve Raisa , Kaukinen Katri 
Published: March 2022

Aims: To explore if anti-gliadin antibody (AGA) positivity is associated with overall mortality or morbidity and especially with the development of coeliac disease during long-term gluten exposure.
Methods: The study population comprised 130 persistently AGA-positive but transglutaminase-2 (anti- TG2) -negative and 52 persistently AGA- and anti-TG2 -negative subjects aged 64-88 years. HLA-typing for DQ2 and DQ8 (coeliac-type HLA) was performed on the AGA-positives. The medical records of the study population were reviewed to compare mortality and morbidity during a long-term follow-up of 12-13 years since the initial antibody analysis.
Results: Mortality or cumulative prevalence of gastroenterological, autoimmune, psychiatric, cardiovascular or any malignant diseases did not differ statistically between the AGA-positives and the AGA-negatives. Neurological diseases were more common in the AGA-negative group (p=0.017), but there was no statistical difference between the prevalence of any particular neurological diseases. Coeliac-type HLA in AGA-positive subjects did not influence mortality or morbidity. However, during the last six to seven years the incidence of immunological diseases was more common in the AGA-positive subjects without coeliac-type HLA than in those with coeliac-type HLA, or in the AGA-negative group (p=0.020). None of the persistently AGA-positive subjects developed clinically diagnosed coeliac disease.
Conclusions: Gliadin antibody positivity without coeliac disease does not predict mortality or morbidity in the ageing population continuing to consume gluten for over ten years.
The Effect of Linked Color Imaging for Adenoma Detection. A Meta-analysis of Randomized Controlled Studies
Authors: Wang Jun , Ye Chuncui , Wu Kejian , Fei Sujuan 
Published: March 2022

Background and Aims: The effect of linked color imaging (LCI) compared with white light imaging (WLI) is conflicting. The aim of this meta-analysis is to compare the efficacy of LCI versus WLI for the adenoma detection.
Methods: PubMed, Embase, Google Scholar and Cochrane Library were searched up to the end of Aug 18, 2021. All randomized controlled trials (RCTs) comparing LCI with WLI were included. Dichotomous data were pooled to obtain the relative risk (RR) with a 95% confidence interval (CI), whereas continuous data were pooled using a mean difference (MD) with 95%CI.
Results: A total of 10 RCTs involving 5,510 patients were included. The use of LCI was associated with a statistically significant improvement in adenoma detection rate (ADR), polyp detection rate (PDR), mean adenomas per patient (MAP) and mean polyp per patient (MPP) when compared to WLI (ADR: RR=1.15, 95%CI: 1.07-1.23, p=0.0001, PDR: RR=1.15, 95%CI: 1.08-1.22, p<0.0001; MAP: MD=0.18, 95%CI: 0.09- 0.28, p=0.0002; MPP: MD=0.13, 95%CI: 0.01, 0.25, p=0.03). When stratified by size, LCI group had a higher detection rate of small adenomas (<10 mm) than the WLI group. Besides, LCI showed a significant decrease in adenoma miss rate (AMR) when compared to WLI. There were no statistically significant differences between the two groups in advanced ADR (AADR), sessile serrated lesion detection rate (SDR), cecal intubation rate, insertion time, and withdrawal time.
Conclusions: The pooled evidence suggests that LCI can significantly improve the detection of ADR, especially for small adenomas (<10 mm). Moreover, the AMR were significantly lower using LCI compared with WLI.
Situación de la economía digital, el comercio electrónico y el ecosistema FinTech en Uruguay
Authors: Mora-Vega Roy , Fonseca-Arguello Hugo , Murillo-Vega Maricruz 
Published: March 2022

El artículo analiza la situación de la economía digital en el Uruguay, particularmente en relación con el comercio electrónico y el surgimiento de empresas FinTech. Este es un sector que refleja la creciente importancia que tiene la economía digital como impulsor de la actividad económica de un país pequeño y en vías de desarrollo. Resalta el potencial que tiene este sector para contribuir a la formalización e inclusión económica y financiera.
Se emplea una metodología descriptiva y exploratoria, y una compilación de información de varias fuentes, recurriendo al uso de fuentes secundarias de variables cualitativas y cuantitativas. Una de las conclusiones de este trabajo es que Uruguay, a pasear de ser un país pequeño, es uno de los más avanzados en digitalización en América Latina, sin embargo, siguen existiendo importantes brechas y oportunidades de mejora y crecimiento en este sector.