bluuebunny/crossref_metadata_2025_split huggingface dataset:
Factors Affecting Vaulting After Implantable Collamer Lens Implantation
Authors: Kamiya Kazutaka , Shimizu Kimiya , Komatsu Mari 
Published: September 2019

Purpose:
To evaluate the vaulting of the STAAR Implantable Collamer Lens (ICL) over the crystalline lens after implantation.

Methods:
One hundred twenty-three eyes of 68 patients with myopic refractive errors of −3.25 to −22.75 diopters undergoing ICL implantation were examined retrospectively. The magnitude of the central vaulting of the ICL was assessed quantitatively using slit-lamp microscopy at 3 months after surgery. Multiple regression analysis was used to assess the factors affecting the amount of vaulting.

Results:

The mean central vaulting 3 months after surgery was 603.6±259.6 µm. Explanatory variables relevant to the vaulting were, in order of influence, the horizontal white-to-white distance (partial regression coefficient B=0.268,
P
=.0002) and patient age (B=−0.007,
P
=.011).

Conclusions:

Although the majority of the variance remains unexplained, younger patients' eyes and eyes with greater white-to-white distances are more predisposed to have higher ICL vaulting over the crystalline lens. [
J Refract Surg
. 2009;25:259–264.]
Incidence, Outcomes, and Risk Factors for Retreatment After Wavefront-optimized Ablations With PRK and LASIK
Authors: Randleman J. Bradley , White Alfred J. , Lynn Michael J. , Hu Michelle H. , Stulting R. Doyle 
Published: September 2019

Purpose:
To analyze and compare retreatment rates after wavefront-optimized photorefractive keratectomy (PRK) and LASIK and determine risk factors for retreatment.

Methods:
A retrospective chart review was performed to identify patients undergoing PRK or LASIK with the wavefront-optimized WaveLight platform from January 2005 through December 2006 targeted for a plano outcome and to determine the rate and risk factors for retreatment surgery in this population.

Results:

Eight hundred fifty-five eyes were analyzed, including 70 (8.2%) eyes with hyperopic refractions and 785 (91.8%) eyes with myopic refractions. After initial treatment, 72% of eyes were 20/20 or better and 99.5% were 20/40 or better. To improve uncorrected visual acuity, 54 (6.3%) eyes had retreatments performed. No significant differences in retreatment rates were noted based on age (
P
=.15), sex (
P
=.8), eye (
P
=.3), PRK versus LASIK (
P
=1.0), room temperature (
P
=.1) or humidity (
P
=.9), and no correlation between retreatment rate and month or season of primary surgery (
P
=.4). There was no correlation between degree of myopia and retreatment rate. Eyes were significantly more likely to undergo retreatment if they were hyperopic (12.8% vs 6.0%,
P
=.006) or had astigmatism ⩾1.00 diopter (D) (9.1% vs 5.3%,
P
=.04).

Conclusions:

Retreatment rate was 6.3% with the WaveLight ALLEGRETTO WAVE excimer laser. This rate was not influenced by age, sex, corneal characteristics, or environmental factors. Eyes with hyperopic refractions or astigmatism ⩾1.00 D were more likely to undergo retreatment. [
J Refract Surg
. 2009;25:273–276.]
Utilization of UPLC-tandem mass spectrometry for quantitation of colouring matters in dietary formulation
Authors: Zaghary Wafaa Abdou , Abdalla Ahmed Mostafa , Hanna Emily Tawfik , Zanoun Marwa Abdel Rahman Tohamy 
Published: September 2019

A simple and sensitive ultra-performance liquid chromatography with Tandem Mass Spectrometric detection (UPLC-MS/MS) method was developed and validated for the simultaneous quantitation of two food colouring matters, Curcumin (CUR) and Riboflavin (RIB). Chromatographic separation was done on Hypersil gold 50×2.1 mm (1.9 μm) column, with gradient programing of mobile phase starting with aqueous 0.1% formic acid and increasing the percentage of 0.1% formic acid in acetonitrile. The utilization of multiple reaction monitoring (MRM) improved the selectivity of detection and decreased the matrix effect. The method was linear in the range of 5-500 ng/mL for CUR and RIB. Intra- and inter-day reproducibility were within the accepted criteria. The method was successfully applied for the determination the laboratory prepared mixtures of the two selected colouring matters. The use of mass spectrometry enhanced the selectivity and sensitivity of detection which allows the robust use of the method in routine quality control tests of the two colouring matters (CUR and RIB).
Relaxed Hip Precautions Do Not Increase Early Dislocation Rate Following Total Hip Arthroplasty
Authors: Brown Matthew L. , Ezzet Kace A. 
Published: September 2019

Introduction:
Historically, hip precautions have been prescribed after total hip arthroplasty (THA) to limit certain motions felt to place the arthroplasty construct in a position at increased risk for dislocation. This study aimed to determine whether relaxed hip precautions after primary THA done via a posterolateral approach resulted in a higher early dislocation rate compared with standard hip precautions.

Methods:
The hip precaution protocol was changed from standard to relaxed at our institution for all patients with THA in December 2016. One cohort had THA in the 18 months before the protocol change and had standard hip precautions, and the second cohort had THA in the 18 months after the protocol change and had relaxed precautions. We determined the early dislocation rate (within 3 months postoperatively) for both cohorts and controlled for selected demographic and surgical details.

Results:
The standard precaution group included 597 primary THAs and the relaxed precaution group included 692 hips. No notable differences were found between the groups in terms of age at surgery, body mass index, sex, laterality, or diagnosis. Early dislocation occurred in seven hips (1.2%) in the standard precaution cohort and in nine hips (1.4%) in the relaxed precaution cohort. This difference was not statistically significant (P = 0.77).

Discussion:
The results of our study suggest that well-trained, high-volume surgeons may potentially relax hip precautions prescribed to the patients after primary THA done via a posterolateral approach without subjecting patients to a markedly higher incidence of dislocation. However, unlike previous studies, this study controlled for femoral head size, which is a well-known confounder for dislocation risk.
Determination of structural irregularity limits
Authors: Sadashiva Vinod K. , MacRae Gregory A. , Deam Bruce L. 
Published: September 2019

Structures may be irregular due to non-uniform distributions of mass, stiffness, strength or due to their structural form. For regular structures, simple analysis techniques such as the Equivalent Static Method, have been calibrated against advanced analysis methods, such as the Inelastic Dynamic Time-History Analysis. Most worldwide codes allow simple analysis techniques to be used only for structures which satisfy regularity limits. Currently, such limits are based on engineering judgement and lack proper calibration. This paper describes a simple and efficient method for quantifying irregularity limits. The method is illustrated on 3, 5, 9 and 15 storey models of shear-type structures, assumed to be located in Wellington, Christchurch and Auckland. They were designed in accordance with the Equivalent Static Method of NZS 1170.5. Regular structures were defined to have constant mass at every floor level and were either designed to produce constant interstorey drift ratio at all the floors simultaneously or to have a uniform stiffness distribution over their height. Design structural ductility factors of 1, 2, 4 and 6, and target (design) interstorey drift ratios ranging between 0.5% and 3% were used in this study. Inelastic dynamic time-history analysis was carried out by subjecting these structures to a suite of code design level earthquake records. Irregular structures were created with floor masses of magnitude 1.5, 2.5, 3.5 and 5 times the regular floor mass. These increased masses were considered separately at the first floor level, mid-height and at the roof. The irregular structures were designed for the same drifts as the regular structures.
The effect of increased mass at the top or bottom of the structure tended to increase the median peak drift demands compared to regular structures for the record suite considered. When the increased mass was present at the mid-height, the structures generally tended to produce lesser drift demands than the corresponding regular structures. A simple equation was developed to estimate the increase in interstorey drift due to mass irregularity. This can be used to set irregularity limits.
A distributed-source approach to modelling the spatial distribution of MM intensities resulting from large crustal New Zealand earthquakes
Authors: Dowrick D. J. , Rhoades D. A. 
Published: September 2019

This paper presents a new approach to modelling the spatial distribution of intensities in crustal earthquakes, using a distributed source. The source is represented by one or two rectangular fault rupture planes of chosen dip, discretised into small rectangles each with its own share of the total seismic moment, and modelling chosen distributions of asperities. The Modified Mercalli (MM) intensity of shaking is represented by isoseismals. Comparisons are made with the actual isoseismals (particularly of intensities MM9 and MM10) of selected large historical crustal New Zealand earthquakes and those predicted by the simpler models of Dowrick & Rhoades (2005). Important differences and insights are found regarding near-source spatial distributions of ground shaking of shallow earthquakes with rupture length greater than about 28 km (Mw > 6.8) with any dip, and for Mw > c. 5.5 with dip < 60º. The influence of asperities relative to that of non-asperities is seen as modest near-fault increases in intensity. The new model can be applied to planar or biplanar fault ruptures of any length, width and dip. In the absence of isoseismal data on large earthquakes with normal focal mechanisms the current model is only verified for use on strike-slip and reverse events. A new concept, seismic-source intensity, is introduced and utilized.
The new model can also be applied to earthquakes in other regions of the world with adjustments for local attenuation rates as necessary.
Preliminary observations of the 2010 Darfield (Canterbury) earthquakes
Authors: Wood Peter , Robins Philip , Hare John 
Published: September 2019

This Bulletin of the New Zealand Society for Earthquake Engineering (NZSEE) is a collaboration with the New Zealand Geotechnical Society (NZGS) and the Structural Engineering Society New Zealand (SESOC), with papers on the preliminary observations of the 2010 September 4, 04:35 (NZST; September 3, 16:35 UTC) Darfield (Canterbury) earthquakes.
This Introductory paper summarises preliminary observations of the earthquakes and the performance of ground, structures, non-structural elements, and lifelines; the assessments of usability; and the communication of information amongst the science and engineering communities.
Modified Phillipsite as a Novel Ion-Exchanger for Potassium Extraction from Seawater
Authors: MENG Chunxia , HOU Jin 
Published: September 2019

Template-free preparation of phillipsite as a novel K+ ion-exchanger was studied systematically by hydrothermal synthesis. The alkalinity, dosage of water glass, dosage of H2O, aging time, reaction temperature and time of hydrothermal synthesis were discussed in detail. The optimized material obtained about phillipsite through the synthesis and testing methods was performed. The K+ ion-exchange capacity and selectivity coefficient were tested. The molar composition for preparing high performance phillipsite obtained was 2K2O:18SiO2:Al2O3:510H2O by optimizing synthetic conditions. The K+ ion-exchange capacity of phillipsite was 57.3 mg/g in seawater. The K+ selectivity coefficient was 88.6 in an equimolar K+ and Na+ mixed solution. Phillipsite can selectively capture K+ over other ions, and therefore can be used for potassium extraction selectively from seawater. Phillipsite was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). The XRD pattern indicated that the synthetic zeolite was phillipsite. The phillipsite particles exhibited cross-like shape and the average particle size was about 2.5 μm. The synthetic phillipsite was mainly consisted of Si, Al, K and O elements.
A Novel Approach for Accelerated Fabrication of Calcium Hydroxyapatite Thin Films
Authors: USINSKAS Pranas , STANKEVIČIŪTĖ Živilė , NIAURA Gediminas , ČEPONKUS Justinas , KAREIVA Aivaras 
Published: September 2019

In this study we demonstrate, that sol–gel route is suitable to quicker obtain calcium hydroxyapatite (Ca10(PO4)6(OH)2, CHAp) coatings on crystalline Si substrate by modified dip-coating technique. The substrate was dip-coated by precursor and dried for 10 minutes at 200 °C with following cooling using the heating block for 110 min and annealing at 650 °C. Ethylendiamintetraacetic acid and 1,2-ethandiol, and triethanolamine and polyvinyl alcohol were used as complexing agents and as gel network forming agents, respectively. The obtained coatings were characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), FTIR spectroscopy and contact angle measurements (CAM).
Trabajo y roles de género durante la Prehistoria. Un estudio sobre su percepción en el alumnado de Historia.
Authors: Pastor Quiles María , Mateo Corredor Daniel 
Published: September 2019

Desde la arqueología tradicional se ha generado una imagen de la Prehistoria en la que se atribuyen de forma marcada a mujeres u hombres trabajos y roles, frecuentemente in uenciada por concepciones contemporáneas. Con este artículo analizamos la percepción del alumnado del Grado en Historia sobre una serie de a rmaciones, presentadas en un cuestionario con una escala tipo Likert, que relacionan actividades con un sexo u otro en contextos prehistóricos. Esta investigación ha permitido conocer la presencia entre el alumnado de algunas de estas visiones estereotipadas. Se evidencia la necesidad de incorporar la perspectiva feminista a los estudios históricos para tratar de ser conscientes en mayor medida de estos estereotipos que condicionan la imagen que tenemos de la Prehistoria.
From traditional archaeology an image of Prehistory has been transmitted where activities and roles are attributed to women or men, frequently in uenced by contemporary conceptions. In this paper we analyse the perceptions of History students about a series of statements, presented in a questionnaire based on a Likert rating scale. These statements associate activities with one sex or the other in prehistoric contexts. This research has allowed us to acknowledge the presence of some of these stereotyped visions among the students. The need of incorporating the feminist perspective into historical studies is highlighted, in order to be able to identify these stereotypes that constrain the image we have of prehistoric times.
La representación de la danza dentro de las escenas de banquete de las tumbas tebanas privadas de la XVIII dinastía egipcia.
Authors: Bueno Guardia Miriam 
Published: September 2019

El presente artículo es fruto de una investigación sobre la representación de la danza en las tumbas tebanas privadas del Reino Nuevo (1550-1070 a.C.). En él se pretende poner en contexto la representación de la danza dentro de las conocidas escenas de banquete de la XVIII dinastía (1550-1295 a.C.), así como analizar, mediante el estudio de todas las escenas encontradas, sus características principales y su simbología. Por último, se intentará explicar su posible interpretación, basada en el contexto en el que aparecen, y las convenciones utilizadas para su representación. Por lo tanto, se resaltarán los elementos comunes de estas escenas (ubicación, iconografía…) que son los que nos ayudan a entender su significado e importancia. Se trata de un tema relevante, ya que estas escenas de banquete en las que aparecen bailarinas estaban cargadas de contenido simbólico y estético, y servían de nexo entre el difunto y los visitantes de la tumba. Tenían así, por lo tanto, una gran importancia para el pensamiento religioso egipcio, pues ayudaban a la supervivencia del difunto en el Más Allá.
The present paper is the result of an investigation about the representation of dance within the banquet scenes found in the decoration of the private Theban tombs of the New Kingdom (1550-1070 B.C.). It aims to put in context the representation of dance within the well-known banquet scenes of the Eighteenth Dynasty (1550-1295 B.C.), as well as analyse, through the study of all the scenes found, its main characteristics and its symbolism. Finally, I will try to explain its possible interpretation, based on the context in which the images appear, and the conventions used for its representation. Therefore, the common elements in these scenes (location, iconography…) will be highlighted as they are the key to understand their meaning and importance. This is a relevant issue, since these banquet scenes in which we can see female dancers were loaded with symbolic and aesthetic content, and would serve as a link between the deceased and the visitors of the tomb. They had, therefore, a great importance for Egyptian religious thought as they helped the survival of the deceased in the Hereafter.
Innovación didáctica en Historia: un estado de la cuestión en torno a cuatro ejes temáticos.
Authors: Luna Delgado Diego 
Published: September 2019

El objetivo de este trabajo es ofrecer una panorámica a través de las diferentes perspectivas teóricas desde las que se ha venido abordando la cuestión de la innovación didáctica en la materia de Historia durante los últimos quince años. Para ello se elabora una síntesis descriptiva dividida en cuatro ejes temáticos (herramientas digitales, nuevas metodologías, transformación de la cultura docente y evaluación de la innovación), destacando una serie de conceptos y experiencias empíricas en cada uno de ellos. Entre otras cosas, tal procedimiento revela que la motivación del alumnado es el centro de interés tanto de este campo de investigación como del modelo educativo que hoy se está intentando implementar. Sin embargo, frente al exceso de optimismo y actitudes acríticas detectado respecto a este último, se de ende la necesidad de aumentar la rigurosidad a la hora de comparar discursos innovadores y prácticas educativas.
The aim of this paper is to o er an insight into innovative teaching approaches in History, based on the di erent theoretical perspectives that have been tackled over the last 15 years. In order to achieve this purpose, the paper includes a descriptive summary divided into four central themes (digital tools, new methodologies, transformation of teaching culture and evaluation of innovation), with particular emphasis on a series of concepts and empirical experiences. Among other things, the study reveals that students’ motivation is of the upmost importance not only in this study, but also in the education model which is currently being sought implement. When faced, however, with overoptimism and a lack of criticism of said model, there arises the need for a more rigorous discussion to compare innovative discourses and educational practices.
Les pratiques de chasse face à la sensibilité animale. De l’invisibilité à l’éthique de chasse?
Authors: Mounet Coralie , Chanteloup Laine 
Published: September 2019

Le monde de la chasse en France est de plus en plus soumis à des injonctions sociétales s’intéressant au bien-être et à la sensibilité animale. Cet article interroge la manière dont les chasseurs contemporains des Alpes françaises composent avec ces évolutions sociétales à l’égard des animaux, et analyse comment ces chasseurs appréhendent la mort et la sensibilité animales au sein de leur pratique. Après avoir montré en quoi l’internalisation des critiques formulées contre la chasse influence à la fois les discours et les pratiques spatiales des chasseurs, cette étude revient sur la manière dont les chasseurs caractérisent et vivent la mise à mort animale. Celle-ci dépend d’une éthique de chasse prenant en compte la souffrance animale. Cette éthique apparait comme évolutive et dépend de l’articulation du triptyque : situation de chasse, espèce / individu animal et territoire de chasse, déterminant notamment le degré d’agentivité reconnu à l’animal traqué. Ainsi se développe un registre varié de relations à l’animal et de statuts qui lui est attribué, depuis l’objectivation de celui-ci jusqu’à sa subjectivation.
Le regard du Special Committee on Un-American Activities (commission Dies) sur l’extrême droite américaine entre 1938 et 1944 : les cas du German-American Bund, des Black Shirts Legion, du Ku Klux Klan et du révérend Coughlin*
Authors: Wingender Maxime 
Published: September 2019

Le 26 mai 1938, le Congrès américain crée le Special House Committee on Un-American Activities (SCUAA), mieux connu sous le nom de Commission Dies. De 1938 à 1944, le SCUAA a le mandat d’enquêter sur la subversion antiaméricaine d’extrême droite et d’extrême gauche. En nous appuyant sur les rapports du SCUAA, les archives personnelles de Martin Dies et certains journaux de l’époque, notamment, nous proposons d’analyser le regard de cette commission d’enquête sur les mouvements d’extrême droite américains. À cet effet, nous nous pencherons sur quatre cas en particulier, soit ceux du German-American Bund, des Black Shirts Legion italo-américaines, du Ku Klux Klan et du père Charles E. Coughlin. Le texte qui suit tend à démontrer que la perception de la commission Dies à l’égard des organisations extrémistes n’est pas uniforme, ce qui nous incite à avancer que le regard « antiaméricain » à l’endroit de la droite radicale américaine est surtout le fait de l’influence étrangère, soit celle du nazisme et du fascisme.
« This is your president and I’m here to help you » : Lyndon Johnson et les Noirs de La Nouvelle-Orléans à la suite de l’ouragan Betsy de 1965*
Authors: Séguin Gabriel 
Published: September 2019

Dans la nuit du 9 au 10 septembre 1965, La Nouvelle-Orléans est dévastée par l’ouragan Betsy. Une inondation soudaine submerge une portion de la ville, en particulier le Lower Ninth Ward, un quartier dense à majorité noire. Dès le soir suivant, le président Lyndon B. Johnson se rend sur place et promet aux Orléanais une réponse rapide et efficace. Toutefois, au fil des semaines, des voix s’élèvent pour dénoncer les obstacles au rétablissement des quartiers noirs. Johnson était-il sérieux dans son engagement de venir en aide à tous les sinistrés, Noirs comme Blancs ? Cette étude tente de répondre à cette question en examinant l’influence du thème de l’équité raciale sur les décisions et les actions de l’administration Johnson après Betsy.
Modelling and Simulation of Crash Tests on Curved Barriers Taking into Account Vehicle Speed Limits
Authors: Klasztorny Marian , Nycz Daniel Bronislaw , Zajac Kamil Pawel 
Published: September 2019

The reliable speed of a vehicle, assigned to a given road arc, is not usually taken into account in simulation of crash tests on road safety barriers located on horizontal concave arcs with small radii (20−200 m). In this work, the numerical modelling and simulations of TB11, TB32 crash tests for selected road safety barriers on a horizontal concave arc with a small radius of 150 m, at a reliable and increased speed of a vehicle, were conducted. The authors developed the methodology of numerical modelling and simulation and published in the period 2015−2018. In this study, crash tests include two N2 class steel road barriers with the B-type guide rail, i.e. SP-05/1 (with 1.00 m post spacing) and SP-05/2 (with 2.00 m post spacing). Suzuki Swift and Dodge Neon vehicle models were taken from the National Crash Analysis Center (USA) library and modified, respectively. It was proved that road traffic safety on horizontal concave arcs with small radii is assured if the reliable velocity is not exceeded by drivers. Compacting the post spacing or the uses of a composite-foam protective overlay added to guide rails are not recommended.