bluuebunny/crossref_metadata_2025_split huggingface dataset:
A reply to Sujit Choudhry’s ‘Resisting democratic backsliding’: Weimar legacy and self-enforcing constitutions in post-WWII left-wing constitutional theory
Authors: CAR RONALD 
Published: June 2019

Abstract:As claimed by Sujit Choudhry, ‘historical examples have re-emerged as important elements not only of academic analysis, but also of constitutional practice’ worried by the threat of democratic backsliding. Left-wing constitutionalists inspired by the Frankfurt School have left us a theory of constitutional stability drawn on by the Weimar experience. Following Choudhry’s call for more historical research on the subject, I will first summarise the critiques of the Weimar constitution developed by these authors and their ensuing proposals for its reformation. Secondly, I will describe the efforts made after 1945 to translate these suggestions into keys for German democratic renaissance. Apart from their impact on the Basic Law, I will focus on the much lesser known attempt to design a ‘better Weimar’ in the Soviet Zone of Occupation from 1945 to 1947. I will show how Weimar left-wing constitutionalism influenced East Berlin constitutional debate and the reactions of the West German constitutionalists. My final goal is to enrich our understanding of the issue raised by Choudhry of placing the political parties at the very core of the constitution instead of running away from political power.
Seismic Velocity Change Patterns Along the San Jacinto Fault Zone Following the 2010 M7.2 El Mayor‐Cucapah and M5.4 Collins Valley Earthquakes
Authors: Hillers G. , Campillo M. , Brenguier F. , Moreau L. , Agnew D. C. , Ben‐Zion Y. 
Published: June 2019

AbstractWe study temporal changes of seismic velocity (dv/v) in the crust around the central section of the San Jacinto fault zone (SJFZ), Southern California. Focusing on a 200‐day‐long period around April 2010, our analysis resolves two tens‐of‐days‐long successive episodes of reduced velocities that are compatible with signals from the long base strainmeter at the Piñon Flat Observatory. The imaged dv/v sequences are proxies for evolving material properties in the crust surrounding the SJFZ. The temporal and the spatial coincidence of the observed dv/v patterns with the occurrence of two proposed creep episodes suggest that the relative velocity changes reflect the response to deep creep events that follow the M7.2 El Mayor‐Cucapah earthquake and the M5.4 Collins Valley earthquake that occurred 94 days later on the San Jacinto fault. The main slip during the creep events was proposed to occur below 10‐km depth. Wavefield properties suggest sensitivity to medium changes above this source zone, in the top 10 km. The distribution of the obtained dv/v reductions shows a strong difference between large values to the west of the SJFZ and significantly smaller amplitudes to the east. The similarity to the seasonal velocity change pattern implies that the results are likely controlled by the contrast of mechanical properties across the fault, such as fault‐perpendicular shear modulus variations. Our analysis extends the spectrum of methods that can be used to study earthquake interaction, fault zone rheology and dynamics, triggering, and the interplay between creep episodes and earthquakes.
The zinc transporter Zip14 (SLC39a14) affects Beta-cell Function: Proteomics, Gene expression, and Insulin secretion studies in INS-1E cells
Authors: Maxel Trine , Smidt Kamille , Petersen Charlotte C. , Honoré Bent , Christensen Anne K. , Jeppesen Per B. , Brock Birgitte , Rungby Jørgen , Palmfeldt Johan , Larsen Agnete 
Published: June 2019

AbstractInsulin secretion from pancreatic beta-cells is dependent on zinc ions as essential components of insulin crystals, zinc transporters are thus involved in the insulin secretory process. Zip14 (SLC39a14) is a zinc importing protein that has an important role in glucose homeostasis. Zip14 knockout mice display hyperinsulinemia and impaired insulin secretion in high glucose conditions. Endocrine roles for Zip14 have been established in adipocytes and hepatocytes, but not yet confirmed in beta-cells. In this study, we investigated the role of Zip14 in the INS-1E beta-cell line. Zip14 mRNA was upregulated during high glucose stimulation and Zip14 silencing led to increased intracellular insulin content. Large-scale proteomics showed that Zip14 silencing down-regulated ribosomal mitochondrial proteins, many metal-binding proteins, and others involved in oxidative phosphorylation and insulin secretion. Furthermore, proliferation marker Mki67 was down-regulated in Zip14 siRNA-treated cells. In conclusion, Zip14 gene expression is glucose sensitive and silencing of Zip14 directly affects insulin processing in INS-1E beta-cells. A link between Zip14 and ribosomal mitochondrial proteins suggests altered mitochondrial RNA translation, which could disturb mitochondrial function and thereby insulin secretion. This highlights a role for Zip14 in beta-cell functioning and suggests Zip14 as a future pharmacological target in the treatment of beta-cell dysfunction.
Post-thrombotic syndrome prevention – do we really know the
predictive factors?
Authors: Urbanek Tomasz 
Published: June 2019

AbstractDespite an increasing knowledge and experience regarding deep vein thrombosis
(DVT) treatment, the rate of post-thrombotic syndrome (PTS) remains still
relatively high. According to the current knowledge it is still difficult to
predict on the individual basis, who of the DVT patients will develop PTS as
late complication of the vein thrombosis. Among the factors influencing the
higher prevalence of PTS, the ipsilateral DVT recurrence is of the highest
importance. The other factors which should be mentioned are age, obesity,
previous chronic venous disease as well as a proximal DVT location or lack of
symptoms’ resolution in the early treatment. Looking for the most effective PTS
prevention method several clinical trials were performed regarding
pharmacological DVT treatment, use of early mobilization and medical compression
stocking as well as an implementation of the thrombectomy and thrombolysis. This
paper presents a review of the current knowledge regarding the PTS predictive
factors and prevention.
Biomechanik und Augeninnendruck bei Hornhauterkrankungen
Authors: Luebke Jan , Maier Philip Christian 
Published: June 2019

ZusammenfassungDie Messung des Augeninnendruckes ist vor allem bei Erkrankungen und iatrogenen Veränderungen der Hornhaut eine fehler- und abweichungsanfällige Untersuchung. Es existiert eine Vielzahl an unterschiedlichen Messmethoden, die auf unterschiedliche Art und Weise die Hornhaut und ihre Biomechanik einbeziehen. Die Abweichungen von der bisher als Goldstandard akzeptierten Goldmann-Applanationstonometrie sind in unterschiedlichem Maße von der Beschaffenheit der Hornhaut abhängig. Für unterschiedliche Erkrankungen/Veränderungen variieren diese für die einzelnen Methoden. Eine bei veränderten Hornhäuten klar zu bevorzugende Messmethode existiert nicht, die Kenntnis über die einzelnen Abweichungsverhältnisse ist daher wichtig, um Augeninnendruckwerte individuell einschätzen und einordnen zu können.
Implications of different guidelines for surveillance after serrated polyp resection in United States of America and Europe
Authors: Bleijenberg Arne , Klotz Dagmar , Løberg Magnus , Dekker Evelien , Adami Hans Olov , Kuipers Ernst J. , Holme Øyvind , Kalager Mette , Emilsson Louise , Kleist Britta , Løvdal Leif , Regula Jaroslaw , Løberg Else M. , IJspeert Joep , Bretthauer Michael 
Published: June 2019

Abstract
Introduction Because individuals with serrated polyps and adenomas are at increased risk of developing new polyps and colorectal cancer (CRC), surveillance after resection is justified. After adenoma resection, most international guidelines are consistent, but recommendations for surveillance after serrated polyp resection vary. The United States Multi-Society Taskforce on CRC (US-MSTF) base surveillance intervals on serrated polyp subtype (traditional serrated adenoma, sessile serrated polyp, hyperplastic polyps), while the European Society of Gastrointestinal Endoscopy (ESGE) guidelines do not take serrated polyp subtype into account. We evaluated the implications of this difference in a primary colonoscopy screening cohort.
Methods We included participants from a large colonoscopy screening trial. In a post-hoc simulation, assuming full protocol adherence, we determined the surveillance interval for each subject based on their polyp burden, using the most recent US-MSTF and ESGE guidelines.
Results We included 5323 participants, of whom 1228 had one or more serrated polyps. In 5201 of all participants (98 %; Cohen’s kappa 0.90) and in 1106 of those with serrated polyps (90 %; Cohen’s kappa 0.80), both guidelines recommended identical surveillance intervals. Recommendations for a 3-year surveillance interval were identical between the two guidelines. All 122 subjects with discordant recommendations would receive a follow-up colonoscopy after 10 years using ESGE guidance and after 5 years using US-MSTF guidance.
Conclusion Despite the different criteria used to determine surveillance after serrated polyp resection, most individuals are recommended identical colonoscopy surveillance intervals whether following the ESGE or US-MSTF guidelines. This suggests that surveillance recommendations do not need to consider the serrated polyp subtype.
International Interdisciplinary Consensus Meeting on the Evaluation of Developmental Dysplasia of the Hip
Authors: O’Beirne Joseph Gerard , Chlapoutakis Konstantinos , Alshryda Sattar , Aydingoz Ustun , Baumann Thomas , Casini Carolina , de Pellegrin Maurizio , Domos Gyula , Dubs Beat , Hemmadi Sandeep , Karantanas Apostolos , Kolovos Stylianos , Kraus Tanja , Zhao Liang , Maizen Claudia , Mehdizadeh Mehrzad , Molitorisz Daniel , Persaud Thara , Petratos Dimitrios , Placzek Richard , Placzek Sonja , Scott Sally , Schmid Raoul , Tarrant Ailbhe , Voulgaris Konstantinos 
Published: June 2019

AbstractIn September 2018, an international meeting of doctors of various disciplines, with expertise in the detection and treatment of DDH, was held in Csolyospalos, Hungary. The aim was to achieve consensus on the detection and early treatment of the condition and to develop a standardized system of teaching and training for hip ultrasound. There was strong agreement that US screening is essential. Specifically the Graf technique was selected as the technique of choice. Universal US screening was strongly favored. Screening should be carried out as soon as possible, but not later than the sixth week of age. US screening is cost-effective, does not result in overtreatment, and contributes to a reduction of long-term consequences. The essential principle of treatment is timely application of a device to achieve reduction, retention and maturation, by holding the hips in flexion, and a safe degree of abduction. It was agreed that the effectiveness of any screening policy depends on the correct scanning technique. Therefore, standardization of teaching and training of the Graf technique is mandatory. A unified teaching policy and materials should be developed for this purpose. Certification, re-certification and audit were discussed. The group, which has been formalized as the International Interdisciplinary Consensus Committee On DDH Evaluation (ICODE), will continue to meet and work towards establishing international consensus on DDH, standardizing and developing teaching and training of the Graf technique for hip US, and maintaining standards for detection and management.
Tissue Factor-Negative Cell-Derived Microparticles Play a Distinctive Role in Hemostasis: A Viewpoint Review
Authors: Horstman Lawrence L. , McCauley Robert F. , Jy Wenche , Ahn Yeon S. 
Published: June 2019

AbstractCirculating cell-derived microparticles (MPs) exhibit procoagulant activity and have been investigated for a possible role in some human pathologies. However, their potential role in hemostasis has been neglected and often denied. This review brings to attention a specific body of direct clinical evidence supporting an important but distinctive role of MPs in hemostasis. Evidence for a role of MPs in hemostasis includes: (1) two congenital bleeding disorders attributed to impaired release of MPs; (2) two recent studies of trauma patients relating naturally elevated endogenous MPs at admission to reduced transfusion requirements and better outcomes; (3) a study of coronary surgery patients showing that elevated MP before surgery reduces transfusion requirements during surgery; and (4) a clinical study of patients with immune thrombocytopenia demonstrating that those with high circulating MP have reduced bleeding compared to patients with similar platelet counts but lower MP levels. Mechanisms involving potentiating the contact factor pathway are thought to play a key role and are probably synergistic with polyphosphate released from activated platelets at sites of endothelial injury. Hemostatic defect of patients with deficient MP-mediated coagulation resembles deficiency of FXI (hemophilia C), distinct from hemophilia A or B, so can be termed type C hemostasis. A better understanding of this proposed hemostatic pathway may lead to improved methods for controlling excessive bleeding in surgery, trauma, and other clinical settings.
Clinical Application of Thromboelastography/Thromboelastometry (TEG/TEM) in the Neonatal Population: A Narrative Review
Authors: Konstantinidi Aikaterini , Sokou Rozeta , Parastatidou Stavroula , Lampropoulou Katerina , Katsaras George , Boutsikou Theodora , Gounaris Antonios K. , Tsantes Argyrios E. , Iacovidou Nicoletta 
Published: June 2019

AbstractHemostasis is a dynamic age-related process, which gradually evolves from fetal life throughout childhood until adulthood. Although at birth there is a hemostatic deficit of most coagulation factors, studies have shown that this “hemostatic immaturity” is functionally counterbalanced in healthy term or preterm newborns. This delicate hemostatic balance is, however, deranged in sick neonates, resulting in an enhanced risk of hemorrhage and/or thrombosis. In critically ill neonates, conventional coagulation tests do not seem to provide reliable information or indications regarding the functional status of platelets or fibrinolysis. In contrast, viscoelastic tests, namely thromboelastography/thromboelastometry (TEG/TEM) hold promise for rapid assessment of the whole hemostatic potential, allowing immediate intervention should this be required. However, neonatal data are limited due to lack of reference values, especially in premature neonates. In this narrative review, we provide some insights around current knowledge regarding TEG/TEM applications in healthy and sick newborns. Overall, the use of viscoelastic tests in diagnosis and management of coagulation disorders in neonates is definitely worth further exploration. Consideration should be made to include these tests in the routine laboratory investigation of neonates and specific transfusion algorithms should also be developed in order to avoid treatment pitfalls.
Durability of mortars containing sugarcane bagasse ash
Authors: Jiménez-Quero V G , Ortiz-Guzmán M , Montes-García P 
Published: June 2019

Abstract
This research examines the durability properties of mortars containing sugarcane bagasse ash (SCBA) replacing Portland Cement (PC) by weight of binder. Mortar mixtures were prepared with a water-to-cementitious materials ratio of 0.60 and a cementitious/sand ratio of 1:2.75. A partial replacement of (PC) by 10% and 20% of (SCBA) was used. Compressive Strength, Electrical Resistivity, and Accelerated corrosion tests were investigated. The results showed that the addition of 10% SCBA to the mortar mixtures improves the compressive strength, increases the electrical resistivity more than the mixture control and delays first crack occurrence, therefore we may conclude it is a durable mortar. The results of electrical resistivity allow us to infer that the M3 mixture at late ages will reach the condition of low risk of corrosion. The SCBA used in this research does not require a high-energy-demanding posttreatment to be used in combination with PC for the preparation of durable mortars.
Calcium, Strontium And Barium Titanates As Photacatalysts
Authors: Solís Correa H E , Barceló Quintal I D , Valdés Espinosa A M 
Published: June 2019

Abstract
The titanates were synthesized by the sol-gel method using stearic acid as solvent and reagent. The photocatalytic activity of these materials were measured by discoloration of crystal violet in aqueous solution, irradiating with 254 nm ultraviolet light. TiO2 anatase, frequently used as a photocatalyst, was used to compare its photocatalytic activity with respect to the titanates used here. Activity was measured through dye degradation rate constants. It was expected that strontium and barium titanates, which have reduction potentials in the conduction band more positive than that of TiO2, would be more efficient as photocatalysts, but the experimental evidence does not confirm it.
Reaction of Na-A zeolite with molecular fluorine
Authors: Sánchez-Flores N A , Fripiat J J 
Published: June 2019

Abstract
NaA zeolite reacts rapidly with molecular fluorine at room temperature forming a mixture of amorphous material and of residual crystalline materials. The extent of the reaction depends on the gaseous pressure. The amorphous material contains fluorinated octahedral aluminum complex, sodium and silica. The crystalline fraction keeps the same unit cell parameter as the initial sample.
Reactive Black-5 Photodegradation by TiO2 Thin Films Prepared by Ultrasonic Spray
Authors: Becerril-Altamirano N. L. , Hernández López R. T. , González Reyes L. , Suárez Parra A. R. , Ramírez López R. , Martínez Jiménez A. , Hernández-Pérez I. 
Published: June 2019

Abstract
Structural, optical, textural and photochemical properties of transparent TiO2 thin films were investigated using XRD, AFM and DR-UV-Vis spectroscopy. TiO2 films were obtained by the ultrasonic spray pyrolysis (USP) deposit technique, using corning glass as substrate and a Titanium-Acetyl-acetonate in N,N-Dimethylformamide solution as precursor. XRD patterns depicted the presence of nanostructured materials with poor crystallinity and by diffuse reflectance spectroscopy was measured the absorption profile and calculated the band gap energy of the TiO2 thin films. As the layer thickness diminished, the absorption edge showed a blue shift and the band gap energy was increased. AFM studies allowed determination of irregular thin coating with different morphologies and the presence of micropores. The photocatalytic behavior was evaluated employing the Reactive Black-5 degradation as model reaction. The reaction progress was monitored following the absorbance at 315 and 597 nm of the corresponding UV-Vis absorption spectra. According with the catalytic tests, it was found that the best degradation was achieved with the film prepared at 450 C during 6 minutes.
On some inconsistences between two accepted approaches to treat reversible thermal cycles
Authors: Ocampo-García A , Barranco-Jiménez M A , Angulo-Brown F 
Published: June 2019

Abstract
In many engineering thermodynamics textbooks, for solving reversible thermal cycles such as Otto and Joule-Bryton ones, commonly a kind of hybrid approach is used. On one hand an ideal gas is used as working fluid, but on the other hand, some thermal properties as heat capacities and their ratio are taken from data tables corresponding to imperfect gases. This approach leads to contradictions with the true reversible formalism. In this work, we analyse two examples treated in some thermodynamics textbooks where we show some inconsistences in the solutions of the problems.
Occlusion and noise tests on the encrypted image produced by a security system based on a joint transform correlator and the Fresnel transform
Authors: Vilardy Juan M. , Millán María S. , Pérez–Cabré Elisabet 
Published: June 2019

Abstract
In this work, the occlusion and noise test on the encrypted image produced by a joint transform correlator-based encryption system in the Fresnel domain (FrD) are computed and presented, in order to check the performance of this security system with respect to the image quality resulting in the decryption process for the retrieved image. The encryption system based on a joint transform correlator (JTC) in the FrD was proposed by us, with the purpose of using a lensless optical setup. We test the performance of this security system when the encrypted image is affected by common sources of degradation such as noise (additive and multiplicative) or partial occlusion. Finally, we evaluate the performance and robustness of the security system in the FrD by using the metric of the root mean square error (RMSE) between the image to encrypt and the decrypted image when the encrypted image is degraded by noise or modified by occlusion.
Halsey’s Measure and Curdling Theorem
Authors: del Río-Correa J L , López-García J , Durán-Meza G 
Published: June 2019

Abstract
For a multiplicative cascade (MC), we show that Halsey’s measure is non-degenerate when the partition function takes the value 1, it defines the function τ(q) and introduces a probability vector P(q) for MC. Using an Iterated Function System with Probability with its Hutchinson operator, we generate the MC, obtain the fractal decomposition of self-similar fractal F in subsets Jα, taking the statistical measure of these Jα with P(q) is showed that τ(q) and D(α) are a couple of Legendre transforms, and that for each value of q exist an statistical attractor Jα(q) called the curdling set, where is concentrated the statistical measure, this fact is denoted as the curdling theorem, using this theorem with the multifractal spectra is showed how is obtained the q value such Jα would be the curdling set of the MC.
Data analysis method for estimating virial acoustic virial coefficients of Argon from speed of sound data in the pressure-temperature domain
Authors: Núñez Marco A. , Medina Luis A. 
Published: June 2019

Abstract
Virial series of imperfect gases yield a way for study the reliability of potential interaction models by means of high precision the speed-of-sound data, which are measured as function of pressure and temperature. However, a theoretical study for Argon showed that the third acoustic virial coefficient estimated from by high precision velocity data for Argon, can be inconsistent with ab initio calculations in density-temperature domain. In this work we propose a data analysis method to solving this apparent contradiction. The results show that speed-of-sound data for Argon in the pressure-temperature domain can indeed yield reliable estimations of the third and fourth acoustic virial coefficients in the density-temperature domain.
Electromechanical characterization of didactical piezoelectric sensors based on crystalline grade PET
Authors: Zúñiga Vicente Torres , Carmona Saulo Gonzalo , Morales Saavedra Omar G. 
Published: June 2019

Abstract
A mechanical shock or impact sensor system for teaching purposes was developed and characterized. The device consists of Mylar layers (3×3 to 21×21 cm2) confined by aluminum sheets. The metallic surfaces are wired in order to send their signals to a digital oscilloscope. The instrument receives voltage variations after the surface of the transducer is stroked by a plastic projectile (capsule mass: 50 g) released in free fall (heights: 0.15 - 3 m). The respective piezoelectric constant was determined to be d = 42.02±10−12 m/V. This proposed experiment can be attractive for a basic instrumentation course which combines both theoretical and experimental concepts of mechanics and materials sciences.