bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Mindfulness Program to Improve Resident Physicians’ Personal and Work-Related Well-being: a Feasibility Study
Authors: Fendel Johannes C. , Aeschbach Vanessa M. , Göritz Anja S. , Schmidt Stefan 
Published: April 2020

Abstract
Objectives
Many resident physicians suffer from mental distress. This endangers the individual physician as well as the quality of patient care. This study tested the feasibility of a novel 8-week mindfulness program tailored to improve resident physicians’ personal and work-related well-being.

Methods
Participants were nine resident physicians from a major hospital in southern Germany. Feasibility was assessed in seven domains (demand, acceptability, implementation, practicality, adaptation, integration, and preliminary effectiveness), using self-reports, attrition, attendance, and daily home practice. Using a pre-post within-subjects design, changes were assessed in hair cortisol as a biomarker of stress as well as in self-reported personal and work-related well-being.

Results
The program is feasible in all domains. Participants positively rated the program regarding satisfaction, helpfulness, usage, and personal and professional benefit. All participants indicated to recommend the program. There was no study attrition, high attendance, and an average daily home practice of 13.5 min. A medium reduction was observed with hair cortisol secretion (d = 0.64). In terms of personal well-being, medium-to-large improvements were observed with perceived stress (d = 0.58), mental health (d = 0.77), self-attributed mindfulness (d = 0.92), and self-compassion (d = 1.21). In terms of work-related well-being, small-to-medium improvements were observed with self-reported job strain (d = 0.58), effort-reward imbalance (d = 0.36), work-related burnout (d = 0.32), thriving at work (d = 0.24), and physician empathy (d = 0.21).

Conclusions
This study provides evidence that a tailored mindfulness program is feasible and may be effective in reducing hair cortisol secretion and improving resident physicians’ personal and work-related well-being. These promising findings warrant further investigation within a randomized controlled trial.
The Use of 3D-Printing Technology in Calculus Education: Concept Formation Processes of the Concept of Derivative with Printed Graphs of Functions
Authors: Dilling Frederik , Witzke Ingo 
Published: April 2020

Abstract3D-printing technology has become increasingly important in recent years, offering many possibilities for mathematics teaching and learning. From our point of view, the field of calculus seems to be particularly suitable for the use of 3D-printing. Using the example of 3D-printed graphs of functions, the use of this technology in calculus is discussed within the three approaches of Grundvorstellungen, Subjective Domains of Experience and Empirical Theories. An empirical study, based on the qualitative content analysis according to Philipp Mayring, examines the influence of the models on concept formation processes in the context of derivatives. The focus is on the following research question: “What are the characteristics of concept formation processes of the concept of derivative in the context of 3D-printed graphs of functions?”
Thermal Behavior of Pyrophyllite Ore during Calcination for Thermal Activation for Aluminum Extraction by Acid Leaching
Authors: Erdemoğlu Murat , Birinci Mustafa , Uysal Turan 
Published: April 2020

AbstractIn the production of alumina (Al2O3) from clays by acid leaching, thermal activation by calcination is applied widely as a pre-treatment to improve the dissolution of aluminum. Previous studies have focused only on the thermal behavior of high-purity kaolinite and pyrophyllite, individually. However, thermal activation of complex clay ores containing several silicate minerals and their effect on aluminum extraction have not been studied. The purpose of the present study was to characterize the thermal behavior of a clay ore containing mainly pyrophyllite (Al2Si4O10(OH)2), kaolinite (Al2Si2O5(OH)4), muscovite (KAl2(AlSi3O10)(OH)2), quartz (SiO2), and kyanite (Al2SiO5) from the Pütürge clay deposits (Malatya, Turkey) for possible use in alumina (Al2O3) production by acid leaching. The ore and its calcination products obtained at various temperatures were characterized with respect to their mineral paragenesis, crystal structure, surface morphology, and thermal, calorimetric, and aluminum dissolution properties in order to understand the changes that occurred. Aluminum recovery in the leach solution increased in direct proportion to the dehydroxylation degree (Dtg) of the ore as the calcination temperature increased to 900°C. A maximum aluminum extraction of 90.57% was achieved by leaching of the product from calcination at 900°C. Aluminum extraction decreased sharply above that temperature, even though Dtg increased a little. By increasing the calcination temperature; the structures of pyrophyllite, kaolinite, and muscovite were destroyed by dehydroxylation, resulting in the exfoliation of the mineral layers, thus, a mixture of dehydroxylated phases formed. Depending mainly on the temperature range at which each of the dehydroxylated phases is durable, aluminum could be leached to some extent. The sharp decrease in the extraction of aluminum, iron, and potassium at higher temperatures was attributed to compaction of previously exfoliated layers of the minerals through re-crystallization to form mullite-like structures which seemed insensitive to acid attack during the leaching.
Space use of wild boar (Sus Scrofa) in Budapest: are they resident or transient city dwellers?
Authors: Csókás A. , Schally G. , Szabó L. , Csányi S. , Kovács F. , Heltai M. 
Published: April 2020

AbstractIn our study, we examined the movement of two wild boars marked with GPS/GSM transmitters in city of Budapest. We hypothesised that: the wild boars do not leave the urban area (H1); the wild boars prefer places that are less disturbed by people, and which are rich in potential hiding places (H2); and their home ranges would be smaller than that of wild boars living in non-urban environment (H3). Based on our results, we accepted our first hypothesis, as the wild boars had not left the area of Budapest. However, we partly rejected our second hypothesis: the wild boars preferred urban areas that were forested and richly covered with vegetation; however, human presence therefore disturbance was also high in those areas. The home range sizes of both marked wild boar sows were remarkably smaller than those of the wild boars living in natural environment (H3). City habitat modification, e.g. clearing undergrowth vegetation, could result that wild boars cannot find any hiding places. The significant part of food sources will disappear with the elimination of these places. By eliminating the two main factors together could prevent wild boars finding their living conditions within the city.
Review of Interfaces for Industrial Human-Robot Interaction
Authors: Berg Julia , Lu Shuang 
Published: April 2020

Abstract
Purpose of Review
The review presents an overview of research approaches on human-robot interfaces in industrial and service robotics.

Recent Findings
Research approaches address especially speech and gesture recognition in both fields but are more explored in service robotics. However, the importance of interfaces in industrial robots increases.

Summary
The development of human-robot interfaces is leading towards intuitive interfaces, especially using speech and gesture recognition and combining them to multimodal interfaces.
Obstructive Sleep Apnea is Associated with Polycythemia in Hypogonadal Men on Testosterone Replacement Therapy
Authors: Lundy Scott D. , Parekh Neel V. , Shoskes Daniel A. 
Published: April 2020

AbstractBackgroundPolycythemia (erythrocytosis) is a known side effect of testosterone (T) replacement therapy (TRT) and appears to correlate with maximum T levels. There is also a well-established association between obstructive sleep apnea (OSA) and the development of polycythemia, which confers additional long-term cardiovascular morbidity. Synergy between TRT and OSA in the development of polycythemia remains poorly understood.AimThe objective of this study was to retrospectively assess the relationship of OSA and secondary polycythemia in hypogonadal men receiving TRT.MethodsWe performed a retrospective chart review of all men treated by a single provider from 2015 to 2019 for the diagnosis of hypogonadism. Patients who developed a hematocrit of 52% or greater were classified as having polycythemia. OSA was identified via clinical documentation or use of nocturnal continuous positive airway pressure. Demographics, laboratory values, treatment details, and comorbidities were recorded. Data were reported as mean ± SD for parametric variables and median [interquartile range] for non-parametric values.OutcomeThe primary outcome of this study was the association between OSA and polycythemia in hypogonadal men on TRT.Results474 men were included in this study. 62/474 (13.1%) men met the criteria for the diagnosis of polycythemia with a median hematocrit of 53.6 [interquartile range 52.6, 55.5]. Univariate analysis demonstrated a strong positive association between polycythemia and the concomitant diagnosis of OSA in hypogonadal men (P = .002). Even after correcting for age, body mass index (BMI), and peak T levels in the multivariate analysis (P = .01), this relationship remained significant with an odds ratio of 2.09 [95% CI 1.17, 3.76]. 37 men on TRT with polycythemia and OSA were included in the final cohort with a mean age of 59.2 ± 11.4 years, mean BMI of 32.4 ± 6.0, and median time from TRT initiation to polycythemia diagnosis of 3 years. All patients diagnosed with OSA were prescribed continuous positive airway pressure with poor compliance noted in 52.8% of men. 37.8% were managed via phlebotomy and 59.5% were managed via dose de-escalation of TRT. In hypogonadal men on TRT with polycythemia, BMI was the only risk factor strongly associated with OSA (P = .013).Clinical TranslationIn hypogonadal men (particularly those with elevated BMI) on TRT who develop secondary polycythemia, a diagnosis of OSA should be strongly considered.Strengths & LimitationsThis is a single provider retrospective study and further studies are needed to assess generalizability.ConclusionsIn this retrospective single-center cohort, the development of polycythemia in hypogonadal men on TRT was associated with an increased prevalence of OSA.
Regional Ways of Seeing: A Big-Data Approach for Measuring Ancient Visualscapes
Authors: Susmann Natalie M. 
Published: April 2020

AbstractArchaeologists have long acknowledged the significance of mountains in siting Greek cult. Mountains were where the gods preferred to make contact and there people constructed sanctuaries to inspire intervention. Greece is a land full of mountains, but we lack insight on the ancient Greeks’ view—what visible and topographic characteristics made particular mountains ideal places for worship over others, and whether worshiper preferences ever changed. This article describes a data collection and analysis methodology for landscapes where visualscape was a significant factor in situating culturally significant activities. Using a big-data approach, four geospatial analyses are applied to every cultic place in the Peloponnesian regions of the Argolid and Messenia, spanning 2800–146 BC. The fully described methodology combines a number of experiences—looking out, looking toward, and climbing up—and measures how these change through time. The result is an active historic model of Greek religious landscape, describing how individuals moved, saw, and integrated the built and natural world in different ways. Applied elsewhere, and even on nonreligious locales, this is a replicable mode for treating the natural landscape as an artifact of human decision: as a space impacting the siting of meaningful locales through history.
Turbo-electric propulsive fuselage aircraft BLI benefits: A design space exploration using an analytical method
Authors: Giannakakis P. , Pornet C. , Turnbull A. 
Published: April 2020

ABSTRACTTurbo-electric propulsive fuselage aircraft featuring Boundary-Layer Ingestion (BLI) are considered promising candidates to achieve the emissions reduction targets set for aviation. This paper presents an analytical method capable of estimating the BLI benefit at aircraft level, enabling a quick exploration of the propulsive fuselage design space. The design space exploration showed that the assumptions regarding the underwing turbofans and BLI fan mass estimation can have an important impact on the final fuel burn estimation. The same applies to the total efficiency assumed for the electric transmission, the range of the aircraft mission, and the propulsive efficiency of the engines used as benchmark. The regional jet and short- to medium-range aircraft classes seem to be the most promising as the ingested drag and power saving are among the largest, with long-range aircraft being just behind. The future introduction of advanced technologies, which target the reduction of vortex and wave dissipation at aircraft level, could increase the potential benefit of propulsive fuselage BLI. On the other hand, the potential benefit would be decreased if more efficient and lighter ultra high bypass ratio engines were used as benchmark.
Clinical characteristics associated with COVID-19 severity in California
Authors: Rubin Samuel J. S. , Falkson Samuel R. , Degner Nicholas R. , Blish Catherine 
Published: April 2020

Abstract
Given the rapidly progressing coronavirus disease 2019 (COVID-19) pandemic, this report on a US cohort of 54 COVID-19 patients from Stanford Hospital and data regarding risk factors for severe disease obtained at initial clinical presentation is highly important and immediately clinically relevant. We identified low presenting oxygen saturation as predictive of severe disease outcomes, such as diagnosis of pneumonia, acute respiratory distress syndrome, and admission to the intensive care unit, and also replicated data from China suggesting an association between hypertension and disease severity. Clinicians will benefit by tools to rapidly risk stratify patients at presentation by likelihood of progression to severe disease.
Plagues, pandemics and epidemics in Irish history prior to COVID-19 (coronavirus): what can we learn?
Authors: Kelly B. D. 
Published: April 2020

Objectives:This paper seeks to provide a brief overview of epidemics and pandemics in Irish history and to identify any lessons that might be useful in relation to psychiatry in the context of COVID-19.Methods:A review of selected key reports, papers and publications related to epidemics and pandemics in Irish history was conducted.Results:Viruses, epidemics and pandemics are recurring features of human history. Early Irish sources record a broad array of plagues, pandemics and epidemics including bubonic plague, typhus, cholera, dysentery and smallpox, as well as an alleged epidemic of insanity in the 19th century (that never truly occurred). Like the Spanish flu pandemic (1918–20), COVID-19 (a new coronavirus) presents both the challenge of the illness itself and the problems caused by the anxiety that the virus triggers. Managing this anxiety has always been a challenge, especially with the Spanish flu. People with mental illness had particularly poor outcomes with the Spanish flu, often related to the large, unhygienic mental hospitals in which so many were housed.Conclusions:Even today, a full century after the Spanish flu pandemic, people with mental illness remain at increased risk of poor physical health, so it is imperative that multi-disciplinary care continues during the current outbreak of COVID-19, despite the manifest difficulties involved. The histories of previous epidemics and pandemics clearly demonstrate that good communication and solidarity matter, now more than ever, especially for people with mental illness.
SAFE ZONES AND THE INTERNAL PROTECTION ALTERNATIVE
Authors: Ní Ghráinne Bríd 
Published: April 2020

AbstractA ‘safe zone’ refers to an area established in armed conflict for the purposes of protecting civilians. This article provides the first legal analysis of whether safe zones can be invoked as a ground for refusing asylum. It examines the concept of the Internal Protection Alternative (IPA) which posits that an individual is not a refugee if there is a safe place within his/her country where he/she can relocate. It clarifies the applicable criteria in the IPA inquiry and uses three case studies to illustrate that safe zones can only qualify as lawful IPAs in exceptional circumstances.
PASSPORTS, THE RIGHT TO TRAVEL, AND NATIONAL SECURITY IN THE COMMONWEALTH
Authors: Scott Paul F. 
Published: April 2020

AbstractThis article, on the basis of a consideration of the development of the law relating to the use of passports as a tool of national security in the United Kingdom, Canada, Australia and New Zealand, challenges the common law conception of passports, arguing that passports effectively confer rights and so, consequentially, that the refusal or withdrawal of a passport represents a denial of rights. From this conclusion a number of points flow. Though these consequences are most acute for the United Kingdom and Canada, in which passports remain regulated by, and are issued under, prerogative powers, there are also a number of points of significance for Australia and New Zealand, where passports have a statutory basis.
Impacts of adding functional oils or sodium monensin in high-concentrate diets on performance, feeding behaviour and rumen morphometrics of finishing Nellore cattle
Authors: Melo A. C. B. , Pereira M. C. S. , Rigueiro A. L. N. , Estevam D. D. , Toledo A. F. , Assumpção A. H. P. M. , Dellaqua J. V. T. , Lelis A. L. J. , Millen D. D. 
Published: April 2020

AbstractThis study, conducted at the São Paulo State University feedlot, Dracena campus, Brazil, was designed as a completely randomized block with 2 × 2 factorial arrangement of treatments to evaluate the effects of adding functional oils (FO) or sodium monensin (MON) on feedlot performance, carcass traits, feeding behaviour and rumen morphometrics of Nellore cattle. Ninety-six 20-mo-old Nellore bulls (365.52 ± 39.19 kg) were randomly allocated to 24 pens (n = 4/pen), which were assigned to the treatments: (1) Control (no feed additives); (2) FO (500 ppm); (3) MON (27 ppm); and (4) MON + FO (27 + 500 ppm, respectively). Each treatment was replicated 6 times, and cattle were fed for 105 days. From 0 to 28 days on feed, cattle fed FO had lower dry matter intake (DMI) variation, sorted for medium particles and presented smaller papillae width. The feeding of FO did not negatively impact feedlot performance overall. When MON was added to the diet, cattle had lower DMI overall and 12th rib fat daily gain, and improved gain to feed ratio. The addition of MON to diets improved feedlot performance but reduced the rate of carcass fat deposition. The few effects observed when FO was added to diets were not sufficient to impact feedlot performance.
Investigation of variable storage conditions for cultivated northern wild rice and their effects on seed viability and dormancy
Authors: McGilp Lillian , Duquette Jacques , Braaten Daniel , Kimball Jennifer , Porter Raymond 
Published: April 2020

AbstractCultivated northern wild rice (NWR; Zizania palustris L.) has been bred and studied since the 1950s. One challenge facing researchers is the lack of storage options, due to the seed's unorthodox behaviour. This study evaluated varying storage temperature and moisture conditions for the maintenance of seed viability and dormancy breaking in Minnesota-grown NWR. First, seeds were placed in non-submerged, freezing storage (NSFS) for 12–26 weeks, then in submerged, cold storage (SCS) for 2 weeks. The addition of SCS increased germination (%G) relative to NSFS alone (<0.1% NSFS, 15% NSFS and SCS), indicating that NSFS does not kill seeds but also does not break seed dormancy. Next, the required length of SCS was evaluated by placing seeds in NSFS for 12 weeks and then in SCS for 2–14 weeks. A longer SCS period increased %G from 3 to 79%, at 2 and 14 weeks of SCS, respectively. Lastly, seeds were placed in NSFS, followed by SCS, at varying intervals over a 29-week period. Across lines, germination increased from 20 to 76% between 4 and 7 weeks of SCS, respectively, then plateaued. The results of this study indicate that NSFS could be used to store NWR seeds, but at least 7 weeks in SCS is required to overcome dormancy. Additionally, while NSFS did not break seed dormancy, physiological changes related to stratification processes were occurring in non-submerged, freezing conditions. Results also suggest that the genotypic variation in NWR could be utilized for selection to improve germination and storage viability.
Clinical significance of family history and bicuspid aortic valve in children and young adult patients with Marfan syndrome
Authors: Monda Emanuele , Fusco Adelaide , Melis Daniela , Caiazza Martina , Gragnano Felice , Mauriello Alfredo , Cirillo Annapaola , Rubino Marta , Esposito Augusto , Grammegna Angelina , Nistri Stefano , Pepe Guglielmina , Calabrò Paolo , Strisciuglio Pietro , Della Corte Alessandro , Oppido Guido , Russo Mariagiovanna , Limongelli Giuseppe 
Published: April 2020

AbstractBackground:Marfan syndrome is an autosomal dominant disorder of the connective tissue, whose cardinal features affect eyes, musculoskeletal, and cardiovascular system. Despite prevalence and natural history of cardiovascular manifestation are well known in adults, little is known about children and young adult patients. The aim of this study was to describe a well-characterised cohort of consecutive children and young patients with marfan syndrome, looking at the impact of family history and presence of bicuspid aortic valve on disease severity.Methods:A total of 30 consecutive children and young patients with Marfan syndrome were evaluated. All patients underwent a comprehensive clinical–instrumental–genetic evaluation. Particular attention was posed to identify differences in prevalence of cardiovascular abnormalities between patients with and without family history of Marfan syndrome or bicuspid aortic valve.Results:Of these 30 patients, family history of Marfan syndrome and bicuspid aortic valve were present in 76 and 13%, respectively. Compared to patients with family history of Marfan syndrome, those without showed higher prevalence of aortic sinus dilation (87 versus 32%, p-value = 0.009), greater aortic sinus diameters (4.2 ± 2.1 versus 1.9 ± 1.1 z score, p-value = 0.002), and higher rate of aortic surgery during follow-up (37 versus 0%, p-value = 0.002). Compared to patients with tricuspid aortic valve, those with bicuspid aortic valve were younger (3.2 ± 4.3 versus 10.7 ± 6.8 years old, p-value = 0.043), showed greater aortic sinus diameters (4.2 ± 0.9 versus 2.2 ± 1.6 z score, p-value = 0.033), and underwent more frequently aortic root replacement (50 versus 4%, p-value = 0.004).Conclusions:In our cohort of patients with Marfan syndrome, the absence of family history and the presence of bicuspid aortic valve were associated to severe aortic phenotype and worse prognosis.