bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Power Spectra of Polarized, Dusty Filaments
Authors: Huffenberger Kevin M. , Rotti Aditya , Collins David C. 
Published: August 2020

Abstract
We develop an analytic model for the power spectra of polarized filamentary structures as a way to study the Galactic polarization foreground to the cosmic microwave background. Our approach is akin to the cosmological halo-model framework, and reproduces the main features of the Planck 353 GHz power spectra. We model the foreground as randomly oriented, three-dimensional, spheroidal filaments, accounting for their projection onto the sky. The main tunable parameters are the distribution of filament sizes, the physical aspect ratio of filaments, and the dispersion of the filament axis around the local magnetic field direction. The abundance and properties of filaments as a function of size determine the slopes of the foreground power spectra, as we show via scaling arguments. The filament aspect ratio determines the ratio of B-mode power to E-mode power, and specifically reproduces the Planck-observed dust ratio of one-half when the short axis is roughly one-fourth the length of the long axis. Filament misalignment to the local magnetic field determines the TE cross-correlation, and to reproduce Planck measurements we need a (three-dimensional) misalignment angle with an rms dispersion of about 50°. These parameters are not sensitive to the particular filament density profile. By artificially skewing the distribution of the misalignment angle, this model can reproduce the Planck-observed (and parity-violating) TB correlation. The skewing of the misalignment angle necessary to explain TB will cause a yet-unobserved, positive EB dust correlation, a possible target for future experiments.
New High-quality Strong Lens Candidates with Deep Learning in the Kilo-Degree Survey
Authors: Li R. , Napolitano N. R. , Tortora C. , Spiniello C. , Koopmans L. V. E. , Huang Z. , Roy N. , Vernardos G. , Chatterjee S. , Giblin B. , Getman F. , Radovich M. , Covone G. , Kuijken K. 
Published: August 2020

Abstract
We report new high-quality galaxy-scale strong lens candidates found in the Kilo-Degree Survey data release 4 using machine learning. We have developed a new convolutional neural network (CNN) classifier to search for gravitational arcs, following the prescription by Petrillo et al. and using only r-band images. We have applied the CNN to two “predictive samples”: a luminous red galaxy (LRG) and a “bright galaxy” (BG) sample (r < 21). We have found 286 new high-probability candidates, 133 from the LRG sample and 153 from the BG sample. We have ranked these candidates based on a value that combines the CNN likelihood of being a lens and the human score resulting from visual inspection (P-value), and here we present the highest 82 ranked candidates with P-values ≥0.5. All of these high-quality candidates have obvious arc or pointlike features around the central red defector. Moreover, we define the best 26 objects, all with P-values ≥0.7, as a “golden sample” of candidates. This sample is expected to contain very few false positives; thus, it is suitable for follow-up observations. The new lens candidates come partially from the more extended footprint adopted here with respect to the previous analyses and partially from a larger predictive sample (also including the BG sample). These results show that machine-learning tools are very promising for finding strong lenses in large surveys and more candidates can be found by enlarging the predictive samples beyond the standard assumption of LRGs. In the future, we plan to apply our CNN to the data from next-generation surveys such as the Large Synoptic Survey Telescope, Euclid, and the Chinese Space Station Optical Survey.
Compositing Eclipse Images from the Ground and from Space
Authors: Lockwood Christian A. , Pasachoff Jay M. , Seaton Daniel B. , Sliski David H. , Lefaudeux Nicolas 
Published: August 2020

Abstract
We present composite white-light images of the 2019 July 2, total solar eclipse, from the minimum of the solar-activity cycle. We exhibit high-resolution high dynamic range composites from three observation sites in Chile, including one made of 646 individual ground-based images and with such a wide field it exceeds the field of view of the Naval Research Laboratory’s C2 and C3 coronagraphs aboard ESA’s Solar and Heliospheric Observatory. We compare the resolution of the coronal streamers and other magnetic phenomena of the corona. We also show continuity of features on the solar surface as observed from NOAA’s GOES-16 and GOES-17 Solar Ultraviolet Imager.
The Visualization and Measurements of Mass Functions with LEGO
Authors: Hansotia Kyle K. , Kautsch Stefan J. 
Published: August 2020

Abstract
We promote the concept of mass functions for interdisciplinary science education and communication. A mass function characterizes the frequency distribution of the masses of objects in the universe. We present an experiment to demonstrate this concept to a diverse audience of science students, using popular LEGO toys. We discovered that the LEGO mass function is surprisingly similar compared to mass functions of astronomical objects such as stars and galaxies.
The Large Flux Variations of 17 Com A as Recorded by FUSE
Authors: Monier Richard 
Published: August 2020

Abstract
Inspection of archival FUSE spectra of the Ap star 17 Com A (HD 108662) reveals large flux variations from 905 to 1187 Å over the 5.0808 days rotational period. These variations are of larger amplitude than those observed in the ultraviolet range with IUE from 1200 to 2000 Å. At 1161 Å, where the flux reaches a maximum, the variation of flux with rotational phase shows a double-wave structure similar to that of the Transiting Exoplanet Survey Satellite lightcurve. These large flux variations are most likely caused by the passage of spots or belts of overabundant elements in the line of sight as the star rotates The FUSE spectrum of 17 Com A contains mostly blends of low-excitation lines of Mn ii, Cr ii and Fe ii and interesting lines of C i, C iii, P ii, S ii and Cl i.
Limitations of Autograft and Allograft: New Synthetic Solutions
Authors: Betz Randal R 
Published: August 2020

Abstract
Autogenous cancellous bone is widely regarded as an ideal construct for graft procedures, supplying osteoinductive growth factors, osteogenic cells, and a structural scaffold. However, procurement morbidity and constraints on obtainable quantities limit its use. Allograft is the next best alternative at present; however, minor immunogenic rejection and risk of disease transmission are unresolved issues. Although synthetic grafting materials eliminate these risks, these materials do not transfer osteoinductive or osteogenic elements to the host site. To offer the advantages of autograft and allograft, a composite graft may be considered. Such a graft can combine a synthetic scaffold with biologic elements to stimulate cell infiltration and new bone formation.
Deep Keratomycosis Following Ahmed Glaucoma Valve Implantation
Authors: Mansoori Tarannum , Srirampur Arjun , Agraharam Satish Gooty , Reddy Ashok Kumar 
Published: August 2020

Purpose:
To report an unusual case of deep keratomycosis after Ahmed glaucoma valve (AGV) implantation.

Methods:
A 70-year-old male presented with a deep corneal stromal infiltrate, without epithelial involvement, 3 weeks after a successful AGV implantation for neovascular glaucoma. Microscopic examination of the anterior chamber exudates revealed fungal filaments on smear, and white fungal colonies were observed on the Blood agar and Sabouraud dextrose agar. The fungus was identified as Aspergillus flavus.

Results:
The patient was treated with oral and topical 1% voriconazole. Ten weeks after the treatment, the corneal infiltrate resolved, resulting in a vascularized scar.

Conclusion:
As recalcitrant keratomycosis of the deep corneal layers may occur after AGV implantation, early identification and prompt treatment may help to achieve complete resolution of the infection and salvage the eye.
Ocular Dirofilariasis in Bosnia and Herzegovina
Authors: Zvornicanin Jasmin , Zvornicanin Edita , Numanovic Fatima , Delibegovic Zineta , Husic Damir , Gegic Merima 
Published: August 2020

Purpose:
To report a rare occurrence of ocular dirofilariasis in Bosnia and Herzegovina and provide a short overview on clinical characteristics and treatment options for ocular dirofilariasis.

Methods:
A 75-year-old woman was admitted to the University Clinical Centre Tuzla with pain and redness in her left eye. A live, white, coiled, and active worm was noticed in subconjunctival space of bulbar conjunctiva.

Results:
After successful surgical extraction, the parasite was identified as the adult form of Dirofilaria repens. There were no signs of intraocular or systemic inflammation.

Conclusion:
Ophthalmologists should have in mind a possible infestation, especially in cases with repeated inflammatory reactions and swelling of the ocular region, which does not respond to conventional therapy.
Treatment Outcome of Acquired Retinal Pigment Epithelial Tumors with Rhuthenium-106 Plaque Radiotherapy
Authors: Naseripour Masood , Sedaghat Ahad , Abdolalizadeh Parya , Azizi Ehsan 
Published: August 2020

Purpose:
To report the clinical outcome of rhuthenium-106 plaque radiotherapy in acquired retinal pigment epithelial (RPE) tumors.

Methods:
In this interventional case series, two eyes of two patients with clinically diagnosed ocular-acquired RPE tumors including adenoma and adenocarcinoma underwent plaque radiotherapy with rhuthenium-106. The clinical findings and visual outcome of the patients were evaluated.

Results:
The first patient was a 44-year-old male, and the second was a 32-year-old female. The follow-up times were 24 and 32 months. The tumor was unilateral and hyperpigmented in both cases, located at juxtapapillary in one patient and on peripheral part of the retina in the other. Vitreous hemorrhage and peripheral exudation were obvious in one patient. Macular edema, epiretinal membrane, and retinal feeder vessels were also detected in the examination. The patients underwent plaque radiotherapy with rhuthenium-106 as the first step of management. The tumor has been stable until the last follow-up in both patients with globe preservation and acceptable visual acuity (5/10 for the first case and 4/10 for the second case).

Conclusion:
Rhuthenium-106 plaque radiotherapy might be a conservative therapy in the management of acquired RPE tumors and prevent early enucleation.
Effect of Smoking on Tear Stability and Corneal Surface
Authors: Mohidin Norhani , Jaafar Adlie B 
Published: August 2020

Purpose:
To determine the effect of smoking on tear stability and ocular surface of the cornea among students aged between 19 and 25 years. This study also aimed to find a correlation between tear film stability with a score of McMonnies Dry Eye Questionnaire (MDEQ) and Ocular Surface Disease Index Questionnaire (OSDI).

Methods:
This is a prospective, non-interventional, comparative study of 59 male (27 smokers and 32 non-smokers) undergraduates of a public university. Tear film stability was evaluated using non-invasive tear break-up time and fluorescein tear break-up time. Corneal staining was determined using Efron grading scale. MDEQ and OSDI Questionnaires were used to assess dry eye symptoms. Data were obtained from the right eye only and analyzed using descriptive and correlation analysis.

Results:
The age range of the participants was between 19 and 25 years. The mean age for smokers and non-smokers was 22.19 ± 2.20 and 21.22 ± 1.83 years, respectively (P = 0.07). The smoker group had statistically significant lower tear film stability than the non-smoker group (P < 0.0001). Corneal staining was statistically significant higher at the nasal and temporal parts of the cornea in smokers (P < 0.05). There was a moderate correlation between tear film stability and scores of MDEQ and OSDI.

Conclusions:
Tobacco smoke has a significant effect on the tear film stability, seen in reduced tear stability values among smokers. Corneal staining was found to be more extensive in the smokers. These findings would be useful to eye-care providers in the management of their dry eye patients related to smoking.
Performance of Plusoptix A09 Photo Screener in Refractive Error Screening in School Children Aged between 5 and 15 Years in the Southern Part of India
Authors: Prabhu Avinash V , Thomas Jyothi , Ve Ramesh S , Biswas Sayantan 
Published: August 2020

Purpose:
To evaluate the performance of Plusoptix A09 in detecting ametropia, warranted against frequently-used technique of retinoscopy in children attending school (5–15 years) and its probability as a screening tool.

Methods:
This study was the subset of a larger epidemiological study visual acuity refractive error squint conducted in schools to determine the prevalence of ocular morbidity among the 5–15 years' school children population. Every 7th student in the class (each school had mean value of 100 students) was randomly selected for this study after ascertaining their eligibility as per the inclusion criteria. A cohort of a total of 150 children within the age group of 5–15 (mean, 10.21 ± 2.83) years were recruited from 11 schools of Udupi district. Students with best corrected visual acuity of 20/20, refractive error within ±5.00 diopter (D), without any eccentric fixation, and no history of ocular pathology or seizures were recruited. Refractive error was tested by Plusoptix photorefractor followed by non-cycloplegic and cycloplegic retinoscopic techniques. The examiners performing these tests were masked and unware of the findings. Bland Altman plotted the agreement between the techniques, followed by the receiver operating characteristic curve (ROC), and sensitivity of Plusoptix.

Results:
One-way analysis of variance calculated statistical differences among Plusoptix, objective retinoscopy, and cycloplegic retinoscopy for mean spherical value (1.12 ± 1.16 D, 0.65 ± 0.69 D, and 0.8 ± 0.82 D), cylindrical value (−0.83 D ± 1.27, −0.32 D ± 0.86, and −0.34 D ± −0.93), and spherical equivalent value (0.71 D ± 1.06, 0.45 D ± 0.7, and 0.61 D ± 0.81), with P = 0.0001, 0.0001, and 0.097, respectively. Bland Altman plots showed good agreement for spherical equivalent values of Plusoptix and objective retinoscopy. However, the area under the ROC curve (0.386) suggests that lower diagnostic ability of this device in this age group population in comparison to retinoscopy (0.575) with the sensitivity and specificity of Plusoptix was 69.2% and 84.8%.

Conclusions:
This study fails to report ideal sensitivity mandated for a screening tool, although good specificity and agreement are observed. Along with retinoscopy, this tool will be effective in screening a children's population aged between the age group of 5 and 15 years.
Analysis of Age, Gender, and Refractive Error-Related Changes of the Anterior Corneal Surface Parameters Using Oculus Keratograph Topography
Authors: Moghadas Sharif Nasrin , Yazdani Negareh , Shahkarami Leila , Ostadi Moghaddam Hadi , Ehsaei Asieh 
Published: August 2020

Purpose:
To assess refractive error, gender, and age-related differences in corneal topography of a normal population with Oculus Keratograph 4.

Methods:
This cross-sectional study included a total of 500 normal eyes of 500 individuals with ages ranging from 10 to 70 years. All participants underwent detailed ocular examinations, including visual acuity measurement, slit-lamp examination, and refractive error evaluation. Slit-lamp examination was performed for all individuals to rule out apparent corneal diseases. Corneal topography parameters were assessed using Oculus Keratograph. The data were analyzed based on gender, refractive error, and age groups using independent sample t-test and one-way analysis of variance.

Results:
Of a total of 500 participants (age: 29.51 ± 11.53 years) recruited for the present study, 66.4% were female, and 33.6% were male. The mean spherical equivalent of refraction was − 0.98 ± 1.65 diopters. Significant differences were noted in steep keratometry (P = 0.035) and corneal astigmatism (P = 0.014) between genders. Assessment of the data based on refractive error revealed significant differences in an index of vertical asymmetry (P < 0.001), index of height asymmetry (P = 0.003), and index of height decentration (P = 0.011). Considering age groups, significant differences were observed in flat keratometry readings (P < 0.001), mean corneal astigmatism (P = 0.02), minimum radius of curvature (P = 0.037), and apex power (P < 0.001).

Conclusions:
There was a prominent variation in some topographic parameters based on gender, age, and refractive error. The information on corneal parameters obtained with Oculus Keratograph from normal eyes provides a reference for comparison with diseased corneas.
Non-Surgical Management Options of Intermittent Exotropia
Authors: Heydarian Samira , Hashemi Hassan , Jafarzadehpour Ebrahim , Ostadi Amin , Yekta Abbasali , Aghamirsalim Mohamadreza , Dadbin Nooshin , Ostadimoghaddam Hadi , Khoshhal Fahimeh , Khabazkhoob Mehdi 
Published: August 2020

Purpose:
To review current non-surgical management methods of intermittent exotropia (IXT) which is one of the most common types of childhood-onset exotropia.

Methods:
A search strategy was developed using a combination of the words IXT, divergence excess, non-surgical management, observation, overcorrecting minus lens therapy, patch/occlusion therapy, orthoptics/binocular vision therapy, and prism therapy to identify all articles in four electronic databases (PubMed, Web of Science, Google Scholar, and Scopus). To find more articles and to ensure that the databases were thoroughly searched, the reference lists of the selected articles were also reviewed from inception to June 2018 with no restrictions and filters.

Results:
IXT is treated when binocular vision is impaired, or the patient is symptomatic. There are different surgical and non-surgical management strategies. Non-surgical treatment of IXT includes patch therapy, prism therapy, orthoptic sessions, and overcorrecting minus lens therapy. The objective of these treatments is to reduce the symptoms and the frequency of manifest deviation by decreasing the angle of deviation or enhancing the ability to control it.

Conclusions:
Evidence of the efficacy of non-surgical management options for IXT is not compelling. More comprehensive randomized controlled trial studies are required to evaluate the effectiveness of these procedures and detect the most effective strategy.
Synthese des NFP-70-Verbundprojekts «Abfallmanagement als Beitrag zur Energiewende (wastEturn)»
Authors: Melanie Haupt , Stefanie Hellweg 
Published: August 2020

Im Abfall steckt sowohl direkt wie auch indirekt viel Energie. So werden in der Schweiz pro Jahr Siedlungsabfälle mit einem Energiegehalt von rund 60 Petajoule verbrannt. Die daraus direkt zurückgewonnene Energie deckt etwa 4 Prozent des Endenergiebedarfs. Das grösste Potenzial der Abfallwirtschaft liegt aber meist darin, beim Recycling sekundäre Rohstoffe zu gewinnen und so indirekt die energieintensive Produktion von primären Rohstoffen zu verhindern.
Um den Beitrag der Abfallwirtschaft zur Energiewende zu optimieren, braucht es in einem ersten Schritt vor allem Verbesserungen hinsichtlich einer transparenten Dokumentation der Material- und Geldflüsse und darauf aufbauend eine energetische Priorisierung der verschiedenen Verwertungs- und Entsorgungswege. Als diejenigen Abfallfraktionen mit dem grössten Verbesserungspotenzial wurden Papier und Karton sowie Plastik identifiziert. Bei Papier und Karton lassen sich aufgrund der sehr grossen Mengen bedeutende Effekte erzielen. Gebrauchte Kunststoffe werden mit Ausnahme der PET-Getränkeflaschen bisher erst wenig getrennt gesammelt. Ein grosses Optimierungspotenzial wurde auch bei der Energieeffizienz der Verbrennungsanlagen identifiziert. Damit KVAs die entstehende Wärme wirkungsvoller nutzen können, müssen aber Abnehmer für Dampf und Wärmeenergie in ihrer Nähe angesiedelt sein. Ein entscheidender Erfolgsfaktor für einen Wandel hin zu einer energieeffizienten Abfallwirtschaft ist die Zusammenarbeit zwischen den vielen Akteuren der föderalistisch organisierten Branche. Diese muss sich zum einen vermehrt entlang der Wertschöpfungsketten organisieren. Zum anderen gilt es dabei aber auch, die Freiräume der föderalen Vielfalt zu nutzen, um unterschiedliche Lösungswege zu testen.
Verbundsynthese «Geothermie» des NFP «Energie»
Authors: Guidati Gianfranco , Giardini Domenico 
Published: August 2020

Die oberflächennahe Geothermie mit Wärmepumpen ist Stand der Technik und in der Schweiz bereits stark verbreitet. Im künftigen Energiesystem soll zusätzlich die mitteltiefe bis tiefe Geothermie (1–6 km) eine wichtige Rolle spielen. Im Vordergrund steht die Lieferung von Wärme für Gebäude und industrielle Prozesse. Diese Form der Erdwärmenutzung setzt einen gut durchlässigen Untergrund voraus, damit ein Fluid – in der Regel Wasser – die natürlich vorhandene Gesteinswärme übernehmen und an die Oberfläche transportieren kann. Bei Sedimentgesteinen ist dies meist von Natur aus gegeben, wogegen bei Graniten und Gneisen die Durchlässigkeit mittels Einpressen von Wasser künstlich herbeigeführt werden muss. Die so gewonnene Wärme nimmt mit zunehmender Bohrtiefe zu: In 1 km Tiefe liegt die Untergrundtemperatur bei ca. 40 °C und in 3 km Tiefe bei ca. 100 °C.
Um eine Dampfturbine für die Stromproduktion anzutreiben, sind Temperaturen von über 100 °C notwendig. Da dafür grössere Tiefen von 3 bis 6 km erforderlich sind, steigt auch das Risiko der durch die Bohrungen induzierten Seismizität. Der Untergrund eignet sich ausserdem auch zur Speicherung von Wärme und Gasen, zum Beispiel Wasserstoff oder Methan, sowie zur definitiven Einlagerung von CO2. Dazu muss er ähnliche Voraussetzungen erfüllen wie bei der Wärmegewinnung, zusätzlich ist jedoch eine über dem Reservoir liegende dichte Deckschicht erforderlich, damit das Gas nicht entweichen kann.
Im Verbundprojekt «Wasserkraft und Geothermie» des NFP «Energie» wurde vor allem der Frage nachgegangen, wo sich in der Schweiz geeignete Bodenschichten finden, die die Anforderungen der verschiedenen Nutzungen optimal erfüllen. Ein zweiter Forschungsschwerpunkt betraf Massnahmen zur Reduktion der durch Tiefenbohrungen induzierten Seismizität und der daraus folgenden Schäden an Bauten. Im Weiteren wurden Modelle und Simulationen entwickelt, die zu einem besseren Verständnis der Vorgänge im Untergrund bei der Erschliessung und Nutzung der geothermischen Ressourcen beitragen.
Zusammengefasst zeigen die Forschungsergebnisse, dass in der Schweiz gute Voraussetzungen vorhanden sind für die Nutzung der mitteltiefen Erdwärme (1–3 km), sowohl für den Gebäudepark als auch für industrielle Prozesse. Auch in Bezug auf die saisonale Speicherung von Wärme und Gasen ist Optimismus angebracht. Die Potenziale für die definitive Einlagerung von CO2 in relevanten Mengen sind demgegenüber als eher limitiert zu bezeichnen. Hinsichtlich der Stromproduktion aus Erdwärme mittels der tiefen Geothermie (> 3 km) besteht noch keine abschliessende Gewissheit, wie gross das wirtschaftlich nutzbare Potenzial im Untergrund wirklich ist. Diesbezüglich sind dringend industriell betriebene Demonstrationsanlagen notwendig, um die Akzeptanz bei der Bevölkerung und bei Investoren zu stärken.