bluuebunny/crossref_metadata_2025_split huggingface dataset:
Economic and Social-Class Voting in a Model of Redistribution with Social Concerns
Authors: Gallice Andrea , Grillo Edoardo 
Published: November 2019

Abstract
We investigate how social status concerns may affect voters’ preferences for redistribution. Social status is given by a voter’s relative standing in two dimensions: consumption and social class. By affecting the distribution of consumption levels, redistribution modifies the weights attached to the two dimensions. Thus, redistribution not only transfers resources from the rich to the poor, but it also amplifies or reduces the importance of social class differences. Social status concerns can simultaneously lead some members of the working class to oppose redistribution and some members of the socioeconomic elites to favor it. They also give rise to interclass coalitions of voters that, despite having different monetary interests, support the same tax rate. We characterize these coalitions and discuss the resulting political equilibrium.
What factors affect fluoroscopy use during Bernese periacetabular osteotomy for acetabular dysplasia?
Authors: Wylie James D , McClincy Michael P , Stieler Evan K , Millis Michael B , Kim Young-Jo , Peters Christopher L , Novais Eduardo N 
Published: November 2019

AbstractPeriacetabular osteotomy (PAO) is the treatment of choice for acetabular dysplasia in the skeletally mature. Little is known about factors affecting fluoroscopy use in PAO. Therefore, we strived to determine patient and surgery factors are associated with the amount of fluoroscopy time and radiation dose during PAO. We performed a retrospective review of 378 patients who underwent PAO between January 2012 and August 2017. The mean age was 21.7 years and 326 (86%) were females. A total of 85 patients underwent concomitant arthroscopy and 60 underwent open arthrotomy. We recorded fluoroscopy time in minutes and radiation dose area product (DAP) in mGy·m2. Multivariate general linear modeling identified independent predictors of fluoroscopy time and radiation dose. Mean fluoroscopy time was 1.21 minutes and mean fluoroscopy DAP was 0.71 mGy·m2. Multivariate predictors of increased fluoroscopy time were male gender (P = 0.001), surgeon (P < 0.001) and whether an arthroscopy was performed (P < 0.001). Multivariate predictors of increased fluoroscopy DAP were increased body mass index (BMI) (P = 0.001), surgeon (P < 0.001) and whether an arthroscopy was performed (P < 0.001). Patients undergoing hip arthroscopy concomitant to PAO are at higher risk of longer fluoroscopy time and higher radiation dose. Other factors affecting fluoroscopy time included male gender and surgeon, while radiation dose was further affected by surgeon and BMI. Our findings can facilitate discussion about the risk of radiation exposure during PAO.
Characterization of Nest Architecture of an Indian Ant Diacamma indicum (Hymenoptera: Formicidae)
Authors: Bhattacharyya Kushankur , Annagiri Sumana 
Published: November 2019

Abstract
Nests are physical entities that give shelter to the inhabitants from natural adversities, predators and act as a platform for organization of tasks particularly in social insects. Social insect nests can range from simple structures consisting of a single entrance leading to a chamber to complex nests containing hundreds of connected shafts and chambers. This study characterizes nest architecture of a tropical ponerine ant Diacamma indicum (Hymenoptera: Formicidae), which has small colony sizes and is known to be a scavenger. We also examined if these nests vary seasonally. By examining the microhabitat in the vicinity of the nest, the nest entrance characteristics and casting 77 natural nests of D. indicum across a year, we found that this species occupies relatively simple nests consisting of a single entrance that leads to a single chamber. This chamber progressed to a secondary tunnel that terminated at a greater depth than the chamber. The nest volume was not correlated to the number of adult members in the colony. Even though the microhabitat around the nest and the entrance itself change across seasons, principle component analysis showed that the nest architecture remained similar. Only one parameter, the entrance tunnel showed significant difference and was longer during postmonsoon. Nests of colonies living in the immediate vicinity of human habitation were comparable to other nests. We conclude that D. indicum found in the Gangetic plains live in relatively simple nests that do not vary across seasons.
Chronic exposure of soybean plants to nanomolar cadmium reveals specific additional high-affinity targets of cadmium toxicity
Authors: Andresen Elisa , Lyubenova Lyudmila , Hubáček Tomáš , Bokhari Syed Nadeem Hussain , Matoušková Šárka , Mijovilovich Ana , Rohovec Jan , Küpper Hendrik 
Published: November 2019

Abstract
Solving the global environmental and agricultural problem of chronic low-level cadmium (Cd) exposure requires better mechanistic understanding. Here, soybean (Glycine max) plants were exposed to Cd concentrations ranging from 0.5 nM (background concentration, control) to 3 µM. Plants were cultivated hydroponically under non-nodulating conditions for 10 weeks. Toxicity symptoms, net photosynthetic oxygen production and photosynthesis biophysics (chlorophyll fluorescence: Kautsky and OJIP) were measured in young mature leaves. Cd binding to proteins [metalloproteomics by HPLC-inductively coupled plasma (ICP)-MS] and Cd ligands in light-harvesting complex II (LHCII) [X-ray absorption near edge structure (XANES)], and accumulation of elements, chloropyll, and metabolites were determined in leaves after harvest. A distinct threshold concentration of toxicity onset (140 nM) was apparent in strongly decreased growth, the switch-like pattern for nutrient uptake and metal accumulation, and photosynthetic fluorescence parameters such as Φ RE10 (OJIP) and saturation of the net photosynthetic oxygen release rate. XANES analyses of isolated LHCII revealed that Cd was bound to nitrogen or oxygen (and not sulfur) atoms. Nutrient deficiencies caused by inhibited uptake could be due to transporter blockage by Cd ions. The changes in specific fluorescence kinetic parameters indicate electrons not being transferred from PSII to PSI. Inhibition of photosynthesis combined with inhibition of root function could explain why amino acid and carbohydrate metabolism decreased in favour of molecules involved in Cd stress tolerance (e.g. antioxidative system and detoxifying ligands).
Distribution and spectrophotometric classification of basaltic asteroids
Authors: Mansour J-A , Popescu M , de León J , Licandro J 
Published: November 2019

ABSTRACTWe aim to determine the distribution of basaltic asteroids (classified as V-types) based on the spectrophotometric data reported in the MOVIS-C catalogue. A total of 782 asteroids were identified. The observations with all four filters (Y, J, H, Ks), available for 297 of these candidates, allow a reliable comparison with the laboratory data of howardite, eucrite, and diogenite meteorites. We found that the majority of the basaltic candidates (≈95${{\ \rm per\ cent}}$) are located in the inner main belt, while only 29 (≈4${{\ \rm per\ cent}}$) and 8 (≈1${{\ \rm per\ cent}}$) are located in the middle (MMB) and outer main belt (OMB), respectively. A fraction of ≈33${{\ \rm per\ cent}}$ from the V-type candidates is associated with the Vesta family (with respect to AstDyS). We also identified four MMB V-type candidates belonging to (15) Eunomia family, and another four low inclination ones corresponding to (135) Hertha. We report differences between the colour indices and albedo distributions of the V-type candidates located in the inner main belt compared to those from the MMB and OMB. These results support the hypothesis of a different origin for the basaltic asteroids with a semimajor axis beyond 2.5 au. Furthermore, lithological differences are present between the vestoids and the inner low inclination basaltic asteroids. The data allow us to estimate the unbiased distribution of basaltic asteroids across the main asteroid belt. We highlight that at least 80${{\ \rm per\ cent}}$ of the ejected basaltic material from (4) Vesta is missing or is not yet detected because it is fragmented in sizes smaller than 1 km.
Comments on ‘numerical stability of detonations in white dwarf simulations’
Authors: Kushnir Doron , Katz Boaz 
Published: November 2019

ABSTRACT
Katz & Zingale (KZ19) recently studied a one-dimensional test problem, intended to mimic the process of detonation ignition in head-on collisions of two carbon–oxygen (CO) white dwarfs. They do not obtain ignition of a detonation in pure CO compositions unless the temperature is artificially increased or $5{{\ \rm per\ cent}}$ He is included. In both of these cases they obtain converged ignition only for spatial resolutions better than $0.1\, \textrm{km}$, which are beyond the capability of multidimensional simulations. This is in a contradiction with the claims of Kushnir et al. (K13) that a convergence to $\mathord {\sim}10{{\ \rm per\ cent}}$ is achieved for a resolution of a few km. Using Eulerian and Lagrangian codes we show that a converged and resolved ignition is obtained for pure CO in this test problem without the need for He or increasing the temperature. The two codes agree to within $1{{\ \rm per\ cent}}$ and convergence is obtained at resolutions of several km. We calculate the case that includes He and obtain a similar slow convergence, but find that it is due to a boundary numerical artefact that can (and should) be avoided. Correcting the boundary conditions allows convergence with resolution of ${\sim}10\, \textrm{km}$ in an agreement with the claims of K13. It is likely that the slow convergence obtained by KZ19 in this case is because of a similar boundary numerical artefact, but we are unable to verify this. KZ19 further recommended to avoid the use of the burning limiter introduced by K13. We show that their recommendation is not justified.
A dual role of dLsd1 in oogenesis: regulating developmental genes and repressing transposons
Authors: Lepesant Julie M J , Iampietro Carole , Galeota Eugenia , Augé Benoit , Aguirrenbengoa Marion , Mercé Clemèntine , Chaubet Camille , Rocher Vincent , Haenlin Marc , Waltzer Lucas , Pelizzola Mattia , Di Stefano Luisa 
Published: November 2019

Abstract
The histone demethylase LSD1 is a key chromatin regulator that is often deregulated in cancer. Its ortholog, dLsd1 plays a crucial role in Drosophila oogenesis; however, our knowledge of dLsd1 function is insufficient to explain its role in the ovary. Here, we have performed genome-wide analysis of dLsd1 binding in the ovary, and we document that dLsd1 is preferentially associated to the transcription start site of developmental genes. We uncovered an unanticipated interplay between dLsd1 and the GATA transcription factor Serpent and we report an unexpected role for Serpent in oogenesis. Besides, our transcriptomic data show that reducing dLsd1 levels results in ectopic transposable elements (TE) expression correlated with changes in H3K4me2 and H3K9me2 at TE loci. In addition, our results suggest that dLsd1 is required for Piwi dependent TE silencing. Hence, we propose that dLsd1 plays crucial roles in establishing specific gene expression programs and in repressing transposons during oogenesis.
Is self-care dialysis associated with social deprivation in a universal health care system? A cohort study with data from the Renal Epidemiology and Information Network Registry
Authors: Beaumier Mathilde , Béchade Clémence , Dejardin Olivier , Lassalle Mathilde , Vigneau Cécile , Longlune Nathalie , Launay Ludivine , Couchoud Cécile , Ficheux Maxence , Lobbedez Thierry , Châtelet Valérie 
Published: November 2019

Abstract

Background
Socioeconomic status is associated with dialysis modality in developed countries. The main objective of this study was to investigate whether social deprivation, estimated by the European Deprivation Index (EDI), was associated with self-care dialysis in France.

Methods
The EDI was calculated for patients who started dialysis in 2017. The event of interest was self-care dialysis 3 months after dialysis initiation [self-care peritoneal dialysis (PD) or satellite haemodialysis (HD)]. A logistic model was used for the statistical analysis, and a counterfactual approach was used for the causal mediation analysis.

Results
Among the 9588 patients included, 2894 (30%) were in the most deprived quintile of the EDI. A total of 1402 patients were treated with self-care dialysis. In the multivariable analysis with the EDI in quintiles, there was no association between social deprivation and self-care dialysis. Compared with the other EDI quintiles, patients from Quintile 5 (most deprived quintile) were less likely to be on self-care dialysis (odds ratio 0.81, 95% confidence interval 0.71–0.93). Age, sex, emergency start, cardiovascular disease, chronic respiratory disease, cancer, severe disability, serum albumin and registration on the waiting list were associated with self-care dialysis. The EDI was not associated with self-care dialysis in either the HD or in the PD subgroups.

Conclusions
In France, social deprivation estimated by the EDI is associated with self-care dialysis in end-stage renal disease patients undergoing replacement therapy.
Information theory of metasurfaces
Authors: Wu Haotian , Bai Guo Dong , Liu Shuo , Li Lianlin , Wan Xiang , Cheng Qiang , Cui Tie Jun 
Published: November 2019

Abstract
We propose a theory to characterize the information and information processing abilities of metasurfaces, and demonstrate the relation between the information of the metasurface and its radiation pattern in the far-field region. By incorporating a general aperture model with uncertainty relation in L2-space, we propose a theory to predict the upper bound of information contained in the radiation pattern of a metasurface, and reveal the theoretical upper limit of orthogonal radiation states. The proposed theory also provides guidance for inverse design of the metasurface with respect to given functionalities. Through investigation of the information of disordered-phase modulated metasurfaces, we find the information invariance (1−γ, where γ is Euler's constant) of chaotic radiation patterns. That is to say, the information of the disordered-phase modulated radiation patterns is always equal to 1−γ, regardless of variations in size, the number of elements and the phase pattern of metasurface. This value might be the lower bound of radiation-pattern information of the metasurface, which can provide a theoretical limit for information modulation applications, including computational imaging, stealth technologies and wireless communications.
Left Retrosigmoid Craniotomy for Resection of Cavernous Malformation: 2-Dimensional Operative Video
Authors: Hendricks Benjamin K , Spetzler Robert F 
Published: November 2019

Abstract
Pontine cavernous malformations are highly morbid lesions that require thorough preoperative planning of the surgical approach and meticulous surgical technique to successfully remove. The patient in this case has a large pontine cavernous malformation coming to the parenchymal surface along the pontine–middle cerebellar peduncle interface. The depth of the surgical field and narrow trajectory of approach require use of lighted suction, lighted bipolar forceps, and stereotactic neuronavigation to successfully locate and remove the entire lesion. The cavernous malformation is removed in a piecemeal manner with close inspection of the resection cavity for any remnants. Postoperative imaging demonstrates gross total resection of the lesion. The patient gave informed consent for surgery and video recording. Institutional review board approval was deemed unnecessary. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.
Ipsilateral Internal Carotid Artery Bifurcation Aneurysm and Contralateral Middle Cerebral Artery Aneurysm Clipping: 2-Dimensional Operative Video
Authors: Hendricks Benjamin K , Spetzler Robert F 
Published: November 2019

Abstract
Contralateral clipping of a middle cerebral artery (MCA) aneurysm is challenging but possible with favorable anatomy. This patient had bilateral aneurysms, an ipsilateral internal carotid artery bifurcation aneurysm and a contralateral MCA aneurysm. The surgical goal was to clip both aneurysms if possible. After opening the ipsilateral sylvian fissure, the arachnoid planes were opened along the anterior cerebral arteries to the contralateral sylvian fissure. The arachnoid planes within the sylvian fissure were dissected to permit visualization of the contralateral proximal MCA and anatomy, which permitted the MCA to be followed to the aneurysm. If adequate proximal and distal control is present, the aneurysm is clipped. The surgeon needs to be comfortable in backing out if the exposure is too limited. The sequence of clipping should be to clip the contralateral aneurysm first to avoid inadvertent manipulation of the ipsilateral clip during the contralateral procedure. Postoperative angiography demonstrated that the bilateral aneurysms were clipped and that all vessels were patent. The patient gave informed consent for surgery and video recording. Institutional review board approval was deemed unnecessary. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.
Cervical 7-Thoracic 3 Laminoplasty for Resection of Arteriovenous Malformation: 2-Dimensional Operative Video
Authors: Hendricks Benjamin K , Spetzler Robert F 
Published: November 2019

Abstract
Symptomatic spinal arteriovenous malformations (AVMs) are most frequently associated with hypoperfusion of the spinal cord, either from venous congestion or vascular steal, and are less frequently associated with hemorrhage. This patient had a large cervicothoracic spinal AVM and presented with right hemibody sensory deficit with intact motor function. The AVM had significant preoperative mass effect on the dorsal spinal cord with cord signal change. Preoperative digital subtraction angiography demonstrated a left supreme intercostal feeding artery and left thyrocervical feeding artery, which was embolized preoperatively. A laminoplasty was performed from cervical 7 to thoracic 3 to allow for adequate visualization. The lesion demonstrated an intradural extramedullary presence, which made preservation of the pia mater paramount during the resection. The AVM was disconnected and removed in its entirety as determined by operative visualization and postoperative imaging. The patient gave informed consent for surgery and video recording. Institutional review board approval was deemed unnecessary. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.
Thoracic 11-Lumbar 1 Laminoplasty for Resection of Conus Arteriovenous Malformation: 2-Dimensional Operative Video
Authors: Hendricks Benjamin K , Spetzler Robert F 
Published: November 2019

Abstract
Conus medullaris spinal arteriovenous malformations are uniquely classified by the Spetzler classification. They possess a glomus (type II) nidus in either or both the intra- and extramedullary compartments, with multiple feeding arteries and niduses resulting in complex venous drainage patterns. These characteristics make resection of these lesions challenging, and these lesions are associated with a high risk for recurrence. This patient presented with a subarachnoid hemorrhage, and thorough imaging evaluation revealed a conus arteriovenous malformation. The patient underwent thoracic 11 to lumbar 1 laminoplasty for resection of the lesion. The arteriovenous malformation was circumdissected off the conus and lumbosacral nerve roots using sharp dissection and bipolar forceps. It was visualized both before and after resection with indocyanine green fluoroscopy. The patient tolerated the procedure well, and postoperative angiography demonstrated complete resection. The patient gave informed consent for surgery and video recording. Institutional review board approval was deemed unnecessary. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.
Orbitozygomatic Craniotomy for Clipping a Complex Middle Cerebral Artery Aneurysm: 2-Dimensional Operative Video
Authors: Hendricks Benjamin K , Spetzler Robert F 
Published: November 2019

Abstract
Middle cerebral artery (MCA) aneurysms pose a surgical challenge because of the large caliber of the parent artery and the common need to dissect the sylvian fissure to permit access to the proximal and distal control. The neck of the aneurysm should be generously dissected to permit visualization of any adjacent lenticulostriate perforators. This patient demonstrated a left-sided wide-necked bilobed MCA aneurysm at the M1 bifurcation. The aneurysm was approached using a left orbitozygomatic craniotomy with distal sylvian fissure dissection. A single curved clip was applied for aneurysm occlusion, and postoperative angiography demonstrated aneurysm obliteration with parent vessel patency. The patient gave informed consent for surgery and video recording. Institutional review board approval was deemed unnecessary. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.
Grade 4 Temporal Arteriovenous Malformation: 2-Dimensional Operative Video
Authors: Hendricks Benjamin K , Spetzler Robert F 
Published: November 2019

Abstract
The 2% to 4% annual rupture rate for arteriovenous malformations (AVMs) must be weighed against the risk of intervention during surgery within an eloquent brain region. Following a hemorrhage event, AVMs that were initially considered to be nonoperative or unfavorable for surgical resection can be intervened on to avoid the significantly elevated risk of rehemorrhage. This patient had a dominant temporal lobe Spetzler–Martin grade 4 AVM with deep venous drainage, representing a significant surgical challenge. The arachnoid plane microdissection was performed using microscissors but was tenuous, and it was necessary to define the draining vein and adjacent feeding arteries. This video demonstrates the major principles of AVM resection during the circumdissection and disconnection of the nidus. The postoperative angiography demonstrated complete resection. The patient gave informed consent for surgery and video recording. Institutional review board approval was deemed unnecessary. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.