bluuebunny/crossref_metadata_2025 huggingface dataset:
Characteristics and Outcomes of Simultaneous Bilateral Rhegmatogenous Retinal Detachments
Authors: Finn Avni P. , Eliott Dean , Kim Leo A. , Husain Deeba , Wu David M. , Young Lucy H.Y. , Kim Ivana K. , Andreoli Christopher , Skondra Dimitra , Vavvas Demetrios G. , Miller John B.
Published: September 2016

BACKGROUND AND OBJECTIVE:

To better understand the clinical course and outcomes of simultaneous bilateral retinal detachments managed by modern vitreoretinal surgical techniques.

PATIENTS AND METHODS:

A retrospective review of 21 patients (42 eyes) presenting between April 2000 and June 2015 with simultaneous bilateral rhegmatogenous retinal detachments.

RESULTS:

Mean visual acuity (VA) improved from 20/100 at presentation to 20/40 at last follow-up (
P
= .01). The mean final VA for patients undergoing scleral buckle (SB) alone was 20/30 (log MAR 0.17), pars plana vitrectomy (PPV) alone was 20/40 (logMAR 0.33), and combined PPV/SB was 20/80 (logMAR 0.59) (
P
= .019). Primary reattachment rate in this series was 98%.

CONCLUSION:

In contrast to prior studies, which investigated the management of simultaneous bilateral retinal detachments primarily by SB alone, multiple treatment modalities were utilized in this study, including vitrectomy alone, and overall success of retinal detachment repair was high regardless of treatment modality chosen.

[
Ophthalmic Surg Lasers Imaging Retina
. 2016;47:840–845.]
Intraoperative Optical Coherence Tomography Imaging and Assessment of the Macula During Cataract Surgery: A Novel Technique
Authors: Tripathy Koushik , Chawla Rohan , Kumawat Babulal , Sharma Yog Raj
Published: September 2016

The authors describe a technique to qualitatively analyze the posterior segment during cataract surgery using intraoperative optical coherence tomography (iOCT). Macular iOCT can be done before and after intraocular lens implantation after the media is rendered clear following phacoemulsification. A handheld irrigating planoconcave contact lens is placed over the cornea with the operating microscope in retroillumination mode. After focusing the microscope and upon getting a clear view of the posterior segment, iOCT is switched on, centered at the macula, and focused. This technique enables the surgeon to intraoperatively analyze and document the macular morphology and vitreoretinal interface. Potential uses of this technique include intraoperative decision-making regarding concurrent use of anti-vascular endothelial growth factor agents or steroids in cases with dense cataracts where preoperative OCT is difficult.

[
Ophthalmic Surg Lasers Imaging Retina
. 2016;47:846–847.]
Swan Queen, shipping, and boundary regulation in fandom
Authors: Gonzalez Victoria M.
Published: September 2016

There are a number of fan activities and practices that are subject to regulation. The mechanisms of regulation in shipping, however, are not always clear. Shipping, the fan activity of romantically pairing two fictional characters, has become a popular and contentious facet of fan interaction. The case that will be examined in this article is that of the Swan Queen ship, which pairs two female characters from Once Upon a Time (2011–). The lengths that fans have gone to support and promote this ship led to rather intense discussion and infighting among members of the Once Upon a Time fandom. I utilize comments and posts made on Tumblr to examine the mechanisms that dictate inclusion and exclusion in shipper communities. In doing so, I hope to identify the kinds of shipper activities that are subject to regulation and the kinds of boundaries that this regulation establishes. Shipping is dictated not only by fans' imaginations but also by boundaries that are performed and regulated on digital forums.
Racebending fandoms and digital futurism
Authors: Gilliland Elizabeth
Published: September 2016

Online fan art can be a way for communities to celebrate a particular fandom, characters, or relationships; yet though these pieces have been studied for their ability to create community and express identity, one area that has yet to be fully explored in connection to fan art is as a form of activism. The racebending movement on Tumblr suggests an effort by fans to reclaim books, films, and television from the whitewashing that often takes place in the entertainment industry. In particular, this project explores Tumblr art devoted to recasting popular fiction with people of color, and how this activism has ties to movements such as Afrofuturism, as well as relating the history of the term "racebending" itself. I will examine how these recastings are performed to gauge the intention behind them, and to trace how they are being used as a commentary on society. I believe these rewritings of popular fandoms not only indicate a desire by fans to see more portrayals of diversity, but are also in essence creating an ethno-futuristic space. Though for the most part, the television and film industries continue to whitewash their programming, these fans protest that notion through creating their diversified fan art; in essence, rejecting the homogenous entertainment of the past and present in favor of a self-made, heterogeneous future.
Historicizing video game series through fan art discourses
Authors: Švelch Jan , Krobová Tereza
Published: September 2016

In this article, we argue that fannish histories should not be dismissed as mere nostalgia over past experiences of one's own media fandom. Instead they should be understood as complex narratives which combine various historical layers (personal, productional, fictional) and influence the future reception of and anticipation for sequels. They also shed light on the personal histories of fans, which are often juxtaposed with extratextual and fictional histories of a video game series. The subjective nature of these historical discourses is not to be seen as a constraint but as a feature of everyday history which points to the prominence of historicizing in fan cultures of video game series. These topics are examined in the selected multimodal material from the site DeviantArt consisting of fan art pieces, authorial captions, and respective comments inspired by two single-player video game series: Tomb Raider and Mass Effect.
Toward a broader recognition of the queer in the BBC'S "Sherlock"
Authors: Valentine Amandelin A.
Published: September 2016

With an eye toward the growing body of scholarship on the new Sherlock (2010–), this article considers both the show's possibilities for queer identification and the limitations of analyses of the show that rely too heavily on Holmes's relationship with John Watson as evidence of Holmes's queerness. Despite the producers' proclamation that Holmes is above sex, much less gay sex, the show is ripe with a queer subtext that viewers have recognized and reclaimed as their own. Several scholars have examined Sherlock's appeal to these viewers, but their focus has primarily been on the ways these readings conflict or intersect with how the show and its producers understand him. This article calls for a reading that conceives of a queerness outside of the homosexual domestic. Using José Escobar Muñoz's theory of disidentification, I argue that we should explore readings of the show that do not demand validation of queerness through normative relationships and behaviors. Instead, Sherlock's illegibility allows him to exist in a queer space, outside both essentialist and constructivist ideas of who and what people can be.
Wikipedia and participatory culture: Why fans edit
Authors: Thomas Paul
Published: September 2016

Online, fans of popular culture media partake in participatory culture in various ways, such as writing fan fiction and scrutinizing media on message boards. Another way they do so is by editing relevant articles in the online encyclopedia Wikipedia. In fact, research has shown that Wikipedia articles skew heavily toward pop culture, suggesting that fans of pop culture are among the most enthusiastic of Wikipedia's editors. Of course, the question emerges: Why are pop culture fans in particular so interested in editing Wikipedia? Building on previous research, I argue that fans want to take part in the production of the media that they enjoy, that Wikipedia allows editors to create their own paratext (i.e., the Wikipedia article) in relation to a main text (e.g., a movie, a television show, a book series), and that this paratext may be heavily used by the general public. Such usage is a form of implicit approval that affirms the editors' knowledge and encourages them to make more edits. Thus, Wikipedia validates the fan editor's work in a way that other outlets for participatory culture (e.g., fan fiction, fan art, songwriting) cannot.
Mashing up, remixing, and contesting the popular memory of Hillary Clinton
Authors: Davisson Amber
Published: September 2016

This essay looks at the viral video "Rebel Girl," released in 2015, which was produced by fans of Hillary Clinton. Following the trajectory of the video, one can see the potential for fan mashups to make arguments that subvert dominant narratives of public memory and, conversely, the way the way mainstream media moves to subsume outsider voices.
Creative choices and fan practices in the transformation of theme park space
Authors: Baker Carissa Ann
Published: September 2016

This article describes and interprets fan activities within the theme park space related to a particular fan object. It examines an evolving paradigm wherein the role of theme park visitors is changed. Rather than being perceived as observers of spectacles, they can participate and interact with the environment in new ways. An example of this is Sorcerers of the Magic Kingdom (2012), an interactive role-playing quest and collector card game at Disney's Magic Kingdom Park in Florida. Fans participate in a variety of practices that have dynamically redefined theme park activities. Together, management, designers, and fans have cocreated and reconstructed the theme park experience as one of exploration and participation. Despite multiple levels of control, fans will likewise persist in engagement with activities (in park and online) that help shape and interrogate the theme park space.
"Playing Harry Potter: Essays and interviews on fandom and performance," edited by Lisa S. Brenner
Authors: De Kosnik Abigail
Published: September 2016

Lisa S. Brenner, editor. Playing Harry Potter: Essays and interviews on fandom and performance. Jefferson, NC: McFarland, 2015, paperback, $29.95 (238p) ISBN 978-0-7864-9657-0; e-book $14.43 (5374 KB) ISBN 978-1-4766-2136-4, ASIN B012E9G0R6.
La determinación del concepto de homogeneidad versus resistencia en los pilares de una catedral gótica mediante técnicas no invasivas
Authors: Lluis i Ginovart J. , Costa-Jover A. , Coll-Pla S.
Published: September 2016

La construcción y talla de los pilares en la construcción gótica son la base de la descarga de los empujes de las bóvedas hacia el terreno. La determinación morfológica y tipológica de estos elementos es esencial. En la catedral de Tortosa se experimenta un modelo estructural con doble deambulatorio, construyendo sus capillas entre 1377 y 1424. Éstas tienen la peculiaridad de no disponer de muro de separación entre ellas, como era frecuente en el gótico meridional. La eliminación del muro fue una cuestión debatida posteriormente en la catedral de Milán en 1392. El diseño y modelización de estos pilares, mediante técnicas no invasivas, utilizando el láser terrestre y el georadar, ha permitido constatar diferencias esenciales en su tipología. Se ha determinado que estos pilares son solamente homogéneos en los puntos de transmisión importantes de las cargas de la fábrica, que son en la basa y las tres primeras hiladas del fuste, así como en la parte superior de la imposta.
Quand l’enquêteur de folklore se fait lui-même interroger
Authors: De Surmont Jean-Nicolas
Published: September 2016

C’est entre 1989 et 1991 alors que j’élaborais ce qui allait devenir une historiographie de la chanson signée de la chanson traditionnelle au Québec que j’ai pris l’initiative de solliciter Conrad Laforte pour des entretiens enregistrés. Une partie de ces enregistrements, ici fondus en un seul texte, ont été diffusés dans le cadre de mon émission de radio « Vagabondages » réalisé à Radio Basse-Ville à Québec, émission où je recevais alors de grands intellectuels et auteurs d’ouvrages pour l’essentiel dans le vaste champ des sciences humaines. Dévorant alors tout ce qui s’était écrit sur la chanson, aussi bien la chanson de tradition orale que la chanson signée sans être pour autant alors étudiant d’ethnologie, il était naturel pour moi d’aller rencontrer Conrad Laforte, considéré comme le maître à penser de l’étude de la chanson de tradition orale, survivant pour ainsi dire à Luc Lacoursière qui décédait, lui, alors que je commençais à m’intéresser avidement au sujet. Ces entretiens ont été réalisés, une fois le printemps arrivé et une fois que j’ai été libéré des engagements universitaires à l’Université Laval (Québec). J’ai bien entendu tenté alors d’éclaircir certains points traités dans ces ouvrages ainsi que l’histoire de la collecte de la chanson de tradition orale en général. Ces entretiens ont été enregistrés en mai 1992 au domicile de Conrad Laforte sur l’ex-rue Gatineau à Québec devenue depuis lors la rue Jean-Hamelin.
La phonothèque du Musée National des Arts et Traditions Populaires : 1937-2012
Authors: Le Gonidec Marie-Barbara
Published: September 2016

Alors que le bâtiment a été restitué en mai 2012 à son propriétaire, la Ville de Paris, et que son successeur, le Musée des Civilisations de l’Europe et de la Méditerranée a été inauguré à Marseille en juin de la même année, il nous a semblé opportun de rappeler brièvement l’histoire de la phonothèque de l’institution et de donner quelques informations pratiques sur ses fonds.
Du militantisme à l'histoire
Authors: Contini Giovanni
Published: September 2016

Dans le cadre du projet Nouvelles figures professionnelles. Médiateurs de la mémoire, porté par le réseau d'associations franco-italiennes « Italia in Rete » et financé par la région Emilie Romagne, une journée d’étude franco-italienne d’histoire orale s’est déroulée le 10 avril 2014 au Conservatoire National des Arts et Métiers (CNAM) de Paris. Placée sous la direction scientifique de Claire Scopsi, maître de conférence au CNAM, elle a réunit des acteurs académiques et scientifiques, professionnels des archives et des musées, acteurs associatifs des collectes de mémoires français et italiens. Cette manifestation a été l’occasion d’un dialogue interculturel autour des contextes d’émergence, des approches épistémologiques et des pratiques de l’histoire orale en Italie et en France. La conférence d’ouverture a été prononcée par Giovanni Contini, Président de l’Associazione Italiana di Storia Orale (Association italienne d'histoire orale). Nous remercions son auteur, ainsi que les organisateurs de la journée d’étude, d’avoir accepté de publier le texte de son intervention dans le Bulletin de l’AFAS. Pour l’édition de cette conférence nous avons conservé le style oral de l’intervention. Toutes les notes ont été ajoutées par le rédacteur.
L'édition phonographique : 1895-1950, des débuts de la commercialisation des phonogrammes à l'apparition du microsillon
Authors: Sébald Bruno
Published: September 2016

Note de lecture : le terme phonogramme définit ici l’ensemble des supports sonores répartis en deux grandes familles : cylindres et disques.
L'utilisation des corpus oraux à des fins culturelles : quels contrats mettre en œuvre ?
Authors: Le Draoullec Ludovic
Published: September 2016

L’exposé qui va suivre s’appuie sur l’expérience du « Portail Archives Sonores » réalisé en 2004-2005 par l’IRCAM à la demande de la MERT du ministère de la Culture, sur les fonds possédés par le Musée national des Arts et Traditions Populaires, les Archives Nationales, la BnF et la Phonothèque de la MMSH. Il est divisé en deux parties : - Les caractéristiques du patrimoine sonore français et les perspectives de valorisation culturelle, envisageables à court et moyen terme. - Les propositions de contrats juridiques pour rendre exploitables les collections et leur économie générale
Developing Risk Management as New Concept to Manage Risks in Higher Educational Institutions
Authors: Wu Ming-Chang , Nurhadi Didik , Zahro Siti
Published: September 2016

Generally, the higher education institutions and students have been significantly increased from year to years in order to meet the needs of global labor and develop the country's economy better. On the other hand, they also carry out teaching, research, community service, and commercial activities. This diversity of activities creates more risks diverse and complex as well as a wealth of opportunities for higher education institutions. A solution considered is by implementing the risk management as a new concept to understand and manage the risks associated with those activities and making new opportunities, is challenging and critical to preserving and protecting reputation, and resources of institutions. This article discussed the importance of the role of risk management and to implement a risk-management program in higher education institutions that have high expectations as a world-class education institution. The risk-management program is also more optimal if it supported by a good communication between all leaders and staffs in the organizational environment.
Development of Graphenated Polyamic Acid Sensors for Electroanalytical Detection of Anthracene
Authors: Hamnca Siyabulela , Ward Meryk , Ngema Xolani Terrance , Iwuoha Emmanuel Iheanyechukwu , Baker Priscilla Gloria Lorraine
Published: September 2016

Polyaromatic hydrocarbons (PAHs) are typically present in environmental samples at very low concentrations. Therefore, extensive sample preparation is necessary to enhance the signal for analytical determination of these compounds by classical methods based on chromatography or spectroscopy. In this study an electrochemical sensor for anthracene based on polyamic acid- graphene oxide (PAA-GO) nanocomposite electrode was prepared for application in the direct analysis of small volumes of samples with minimal pre-treatment steps. Polyamic acid and graphene oxide (GO) are materials with well-defined electrochemistry of their own and both are readily synthesised under ambient laboratory conditions. The sensor was prepared by cyclic voltammetric co-deposition of PAA and GO onto a commercial screen printed carbon electrode (SPCE) in five voltammetric cycles with initial and switch potentials of -1000 mV and +1000 mV, respectively, at a potential scan rate of 50 mV/s. The sensor materials (GO, PAA and PAA-GO) were characterised by Fourier transform infrared spectroscopy (FTIR), high resolution scanning electron microscopy (HRSEM) and cyclic voltammetry (CV), while their corresponding screen printed electrode systems (GO/SPCE, PAA/SPCE and PAA-GO/SPCE) were evaluated as possible chemical sensors for anthracene.
Synthesis of N-Alkyl-N,N-Dimethyl Quaternized Chitosan and its Application as Effective Absorbents towards Reactive Dye KN-R
Authors: Wu Jin Dan , Cai Guo Qiang , Wang Ji Ping
Published: September 2016

Several types of N-alkyl-N,N-dimethyl quaternized chitosan (QC) derivatives with different alkyl chains were prepared as effective adsorbents towards reactive dye KN-R. QC with long dodecanyl chain was insoluble in neutral solution but could self-assembled into spherical nanoparticles. The effects of degree of quaternization and alkyl chain length on the adsorption properties of KN-R onto QC were investigated. The results showed that a higher degree of quaternization of copolymers led to a higher adsorption capacity. At similar degree of quaternization, QC nanoparticles with longer alkyl chains showed better adsorption ability than soluble free QC chain with shorter alkyl chains. Positive charges were accumulated on the surface of nanoparticles, which showed higher charge density than free polymer chain. The adsorption kinetics appeared to followed a well-described by pseudo-second-order model. Meanwhile, all of the obtained quaternized chitosan samples showed a higher adsorption capacity than the commercial adsorbent polyaluminium chloride. This work showed that adsorption ability of the cationic polymer could be improved by self-assembling into nanoparticles and that synthesized quaternized chitosan could be utilized as an efficient adsorbent for dye removal.
Ultrasonic Assisted Synthesis of Reduced Graphene Oxide in Glucose Solution
Authors: Kamisan Ainnur Izzati , Zainuddin Lili Widarti , Kamisan Ainnur Sherene , Kudin T.I.T. , Hassan Oskar Hasdinor , Abdul Halim Norhana , Yahya Muhd Zu Azhan
Published: September 2016

A new carbon material viz. graphene has been attracted an increasing research interest owing to its unique electrical and mechanical properties that is useful for the various device applications. The synthesis of graphene from graphene oxide usually involves harmful chemical reducing agents that are toxic and undesirable to human and the environment. By avoiding the use of toxic and environmentally harmful reductants, we report a green approach to effectively reduce graphene oxide to graphene in glucose solution at room temperature. Graphite oxide was synthesized from graphite powder using modified Hummers’ method. Graphite oxide then further exfoliated to graphene oxide by using ultrasonic irradiation. The mild reduction of graphene oxide is carried out by mixing graphene oxide solution with glucose. The reduction time is varied with 15, 30, 45 and 60 minutes. TEM images provide clear evidence for the formation of few layer graphene. Characterization of theresulting glucose reduced graphene oxide by FTIR indicates the partial removal of oxygen-containing functional groups from the surface of graphene oxide and formation of graphene with defects.
Zinc Adsorption Property of Gamma-MnO2 Nanostructure: Equilibrium and Kinetic Studies
Authors: Dinh Van Phuc , Le Ngoc Chung , Nguyen Thi Phuong Tu , Hoang Thi Dong Thuong , Nguyen Van Dong , Nguyen Ngoc Tuan
Published: September 2016

In this work, gamma–MnO2 nanostructure was used as a sorbent to remove Zn (II) ion from aqueous solution. The influence of pH, sorption time and Zn (II) ion initial concentration were examined. The results showed that equilibrium adsorption was obtained after 60 minutes with 240 rpm of shaking speed at pH = 4.0. The experimental data were analyzed using five non-linear isotherm models: Langmuir, Freundlich, Sips, Tempkin and Dubinin – Radushkevich. The adsorption capacity (qm) from the Langmuir isotherm model for Zn (II) is founded as 55.23 mg/g. The heat of sorption process and the mean free energy were estimated from Temkin and Dubinin – Redushkevich isotherm models to be less than 8 kj/mol which vividly proved that the adsorption experiment followed a physical process. Kinetic studies have shown that although the adsorption data partially followed pseudo-first-order and pseudo-second-order equation for different time, it was well expressed by pseudo-second-order model.
An Investigation on the Effect of La3+ Alteration on Structural Properties of Perovskite PbTiO3: Total Energy Calculation
Authors: Hussin Nur Hafiz , Saimin Muhammad Noor Syazwan , Salleh Nunshaimah , Hassan Oskar Hasdinor , Yahya Muhd Zu Azhan , Taib Mohamad Fariz Mohamad
Published: September 2016

In this study, first principles calculations based on density functional theory were used to evaluate optimized sructures and the total energy of the La doped PbTiO3 tetragonal (P4mm phase group). The calculations were conducted using local density approximation (LDA) functional as implemented in Cambridge Serial Total Energy Package (CASTEP) computer code. The different composition of Lanthanum (x) were doped on PbTiO3 resulting Pb1-xLaxTiO3 and its effect on the structural of Pb1-xLaxTiO3 were investigated. The different composition of La changed the lattice parameter and the volume of Pb1-xLaxTiO3. The total energy also were calculated and x= 0.2 is suitable composition of dapant to doped with PbTiO3 which is more stable compared with the other composition. The results are compared with experimental and other theoretical data.
Leaching Behaviour of Organic Materials in Reinforced Concrete Artificial Reef with RAC
Authors: Mohamad Noridah , Samad Abdul Aziz Abdul , Iman Afif , Monica Hazel , Hadipramana Josef , Wan Inn Goh
Published: September 2016

This paper reports the leaching behaviour of pineapple skins incorporated in the artificial reef fabricated from recycle aggregate concrete. Pineapple skin was mixed with the concrete as added material which produce nutrients to attract fish habitat. Material test was conducted on the concrete reef specimens to determine its compressive strength. The nutrients dispersed were measured by using total phosphorus and nitrate test of the water sample collected from each of the artificial reef within the six days duration. Results showed the compression strength of the reef decreased with the increase of percentage pineapple skin used. However, it was found that the total phosphorus and nitrate leached from the reef increased gradually with time as the percentage of pineapple skin used increased.
Compressive Strength Effects on Flexural Behavior of Steel Fiber Reinforced Concrete
Authors: Jang Seok Joon , Jeong Gwon Young , Lee Mi Hwa , Rokugo Keitetsu , Yun Hyun Do
Published: September 2016

This paper presents results of experimental investigation to evaluation the effects of compressive strength on flexural behavior of steel fiber-reinforced concrete (SFRC). For this purpose, normal and high strength SFRCs with two different fiber volume fractions of 0.5 and 1.0% were prepared. Compressive strength, modulus of elasticity, flexural strength and toughness were measured with tests on SFRC cylinders and prisms. Test results indicated that steel fiber volume fraction significantly affects the flexural strength and toughness of SFRC. However, the high strength SFRC showed reduction in flexural toughness compared with the normal strength SFRC. It can be concluded that flexural behavior of SFRC depends on both compressive strength and fiber volume fraction.
Moisture Effects on Patch Bonded Composite Repairs
Authors: Wong King Jye , Gong Xiao Jing , Aivazzadeh Shahram , Tamin Mohd Nasir
Published: September 2016

The present work investigated the effects of moisture absorption on the residual tensile strength of unnotched, notched and double-patch repaired carbon/epoxy composites. Patches were bonded to the parent plate using Araldite2015 adhesive. Specimens were aged in demineralised water at 70°C and tested at moisture content of 0% (dry), 3%, 6% and 7%. Results showed that upon ageing, a maximum of 11% and 17% of strength reduction was found in unnotched and repaired specimens, respectively. On the contrary, a maximum of 15% increment in strength was observed in notched specimens. In addition, good fits to the experimental data were found using the proposed residual strength model, with the maximum difference of less than 6%.
The Konjac/Chitosan Microspheres Prepared by Emulsion Crosslinking Method
Authors: Wang Li Li , Huang Jie , Lai Da Chun , Leng Chong Yan
Published: September 2016

In this study emulsification- chemical crosslinking method was employed. The principle of this method is that macromolecular chains linked together by chemical bonds forming polymers with a body or mesh structure. The sodium tripolyphosphate was used as crosslinking agents.Because sodium tripolyphosphate has many negative groups which can react with the amino of CS, thus they can form the crosslinking in intramolecular and intermolecular.
Synthesis and Characterization of Different Transition Metal-Alginate Based Heterogeneous Catalyst for Esterification Reaction
Authors: Pua Fei Ling , Looi Kah Thong , Krishnan Shamala Gowri , Nabihah Sharifah
Published: September 2016

In recent years, attention has been drawn to produce heterogeneous catalyst to replace homogeneous catalyst in biodiesel industry. This study was focused on the synthesis of three different types of alginate based heterogeneous catalyst (Ferric-alginate, Copper-alginate, and Nickel alginate) and the effect of the catalyst on esterification of oleic acid. Morphology and elemental analysis was conducted to investigate the properties of the catalyst. The new heterogeneous catalysts were used to catalyze the esterification of oleic acid at reaction temperature of 60°C and 2 hours reaction time. Fe-alginate has achieved the highest free fatty acids (FFAs) conversation rate of 82.03%. The results and findings proved that transition metal-alginate heterogeneous catalyst has the potential and ability to esterify the free fatty acids prior biodiesel production from high free fatty acids feedstock.
Comparative Investigation on the Failure Modes of Natural Kenaf/Epoxy Reinforced Composite Hexagonal Tubes
Authors: Alkbir M.F.M. , Sapuan S.M. , Nuraini A.A. , Ishak Mohamad Ridzwan
Published: September 2016

This study aims to investigate failure mode response of woven natural kenaf/epoxy composite hexagonal tubes subjected to an axial and lateral quasi-static crushing test. The hexagonal composite tubes were prepared by the hand lay-up technique using a variety of hexagonal angles 40ο, 50 ο, and 60 ο. The result showed that hexagonal composite tubes under an axial compression test exhibited few failure modes such as, the transverse crack failure mode . Splaying failure mode and local buckling failure mode respectively, whereas the tubes under lateral test only exhibited longitudinal fracture.
Een Hulde aan Prof. Dr F. M. Th. de Liagre Böhl
Authors: Office Editorial
Published: September 2016

No abstract available.
Die Pamflet van Dr H.S. Pretorius "Die Kerknaam"
Authors: Engelbrecht S. P.
Published: September 2016

No abstract available.
De zending in het Oude Testament
Authors: Vriezen Th. C.
Published: September 2016

No abstract available.
"Buiten die Kerk geen heil" - 'n Aspek van die kerkbegrip van Augustinus
Authors: Stoop J. A.
Published: September 2016

No abstract available.
Hoe word ons weer 'n biddende gemeente?
Authors: Le Roux L. M.
Published: September 2016

No abstract available.
Die Kerk en sy Jeug
Authors: Oberholzer C. K.
Published: September 2016

No abstract available.
Filosofiese Grondslae van die Volkekunde
Authors: Coertze P. J.
Published: September 2016

No abstract available.
De kerkbeschouwing van Prof. Dr J. H. Gunning
Authors: Semmelink J. H.
Published: September 2016

No abstract available.
Dr G.D. Scholtz se Gekiedenis van die Nederduitse Hervormde of Gereformeerde Kerk
Authors: Engelbrecht S. P.
Published: September 2016

No abstract available.
'n Ernstige Worsteling om 'n werklike Geloofsetiek
Authors: Engelbrecht B. J.
Published: September 2016

No abstract available.
Moderne persoonsvisies
Authors: Oberholzer C. K.
Published: September 2016

No abstract available.
Historisme en Christendom
Authors: Dreyer P. S.
Published: September 2016

No abstract available.
The Jewish Christian Community
Authors: Rose Pauline
Published: September 2016

No abstract available.
Boekbespreking
Authors: Engelbrecht B. J.
Published: September 2016

No abstract available.
Ter begeleiding
Authors: Pont A. D.
Published: September 2016

No abstract available.
Die Teologiese Hoofgedagtes in Kierkegaard se stryd teen die Hegelse Sisteem
Authors: Engelbrecht B. J.
Published: September 2016

No abstract available.
Frederik Gerhardus Wolmarans en sy kleinseun Andries Daniel Wynand as Handhawers van die Onafhanklikheid van die Transvaalse Kerk
Authors: Engelbrecht S. P.
Published: September 2016

No abstract available.
Rondom de Melanesische "Cargo Cults"
Authors: Obbink H. W.
Published: September 2016

No abstract available.
Prof. H.P. Wolmarans as dosent
Authors: Van den Berg C. L.
Published: September 2016

No abstract available.
Die uitdrukking "Man van God" in die Bybel
Authors: Van Selms A.
Published: September 2016

No abstract available.
Christelike Godsdiens en Eiesoortige Volksdiens
Authors: Geyser A. S.
Published: September 2016

No abstract available.
Boekbespreking
Authors: Erasmus D. F. , Pont A. D.
Published: September 2016

No abstract available.
Ontwikkelingstempo binne Bantoegebiede by Afsonderlike Ontwikkeling
Authors: Coertze R. D.
Published: September 2016

No abstract available.
Artikel III van die Kerkwet van die Nederduitsch Hervormde Kerk van Afrika
Authors: Wolmarans H. P.
Published: September 2016

No abstract available.
Boekbespreking
Authors: Engelbrecht B. J. , Van Selms A.
Published: September 2016

No abstract available.
Wyle Prof. H.G. Viljoen
Authors: Geyser A. S.
Published: September 2016

No abstract available.
Die Kontinuiteit van die Kerk onder Ou en Nuwe Verbond
Authors: Van Selms A.
Published: September 2016

No abstract available.
Die Geskiedenis van die naamkwessie "Hervormd" en "Gereformeerd"
Authors: Steenekamp C. S. v. H.
Published: September 2016

No abstract available.
Oor die Metode van ons Kerkgeskiedskrywing en oor die Kritiek daarop
Authors: Stoop J.
Published: September 2016

No abstract available.
Does a brief workshop change clinical associate students’ resilience?
Authors: Rogers David
Published: September 2016

Background: Clinical associates resilience is important as many will work in adverse circumstances. There is some evidence that educational interventions can improve health care student resilience although it is conflicting. There is no previously published research on educational interventions for resilience in clinical associate students. Objective: To investigate whether a brief resilience workshop could improve resilience in clinical associate students. Methods: A single cohort pre-post design was used. Resilience scores were calculated using the Connor-Davidson 25-item resilience scale in a cohort of clinical associate students before and 8 weeks after a brief resilience workshop. Results: Although no statistically significant changes were observed after a brief resilience workshop, this study adds to the existing body of knowledge on resilience in African health care training. Conclusion: The evidence for education interventions to improve resilience is conflicting and complex. Given the relevance to health care workers and their educators, interventions to improve resilience should continue to be evaluated and the outcomes should be reported.
Overlapping Group Logistic Regression with Applications to Genetic Pathway Selection
Authors: Zeng Yaohui , Breheny Patrick
Published: September 2016

Discovering important genes that account for the phenotype of interest has long been a challenge in genome-wide expression analysis. Analyses such as gene set enrichment analysis (GSEA) that incorporate pathway information have become widespread in hypothesis testing, but pathway-based approaches have been largely absent from regression methods due to the challenges of dealing with overlapping pathways and the resulting lack of available software. The R package grpreg is widely used to fit group lasso and other group-penalized regression models; in this study, we develop an extension, grpregOverlap, to allow for overlapping group structure using a latent variable approach. We compare this approach to the ordinary lasso and to GSEA using both simulated and real data. We find that incorporation of prior pathway information can substantially improve the accuracy of gene expression classifiers, and we shed light on several ways in which hypothesis-testing approaches such as GSEA differ from regression approaches with respect to the analysis of pathway data.
Summation formula inequalities for eigenvalues of Schrödinger operators
Authors: Freitas Pedro , Kennedy James B.
Published: September 2016

We derive inequalities for sums of eigenvalues of Schrödinger operators on finite intervals and tori. In the first of these cases, the inequalities converge to the classical trace formulae in the limit as the number of eigenvalues considered approaches infinity.
The exponent in the orthogonality catastrophe for Fermi gases
Authors: Gebert Martin , Küttler Heinrich , Müller Peter , Otte Peter
Published: September 2016

We quantify the asymptotic vanishing of the ground-state overlap of two non-interacting Fermi gases in

d

-dimensional Euclidean space in the thermodynamic limit. Given two one-particle Schrödinger operators in finite-volume which differ by a compactly supported bounded potential, we prove a power-law upper bound on the ground-state overlap of the corresponding non-interacting

N

-Fermion systems. We interpret the decay exponent

\gamma

in terms of scattering theory and find

\gamma = \pi^{-2}\|\mathrm {arcsin}|T_E/2|\|_{\mathrm {HS}}^2

, where

T_E

is the transition matrix at the Fermi energy

E

. This exponent reduces to the one predicted by Anderson [Phys. Rev. 164, 352–359 (1967)] for the exact asymptotics in the special case of a repulsive point-like perturbation.
Skein and cluster algebras of marked surfaces
Authors: Muller Greg
Published: September 2016

This paper considers several algebras associated to an oriented surface

\Sigma

with a finite set of marked points on its boundary. The first is the
skein algebra

\mathsf {Sk}_q(\Sigma)

, which is spanned by links in the surface which are allowed to have endpoints at the marked points, modulo several locally defined relations. The product is given by superposition of links. A basis of this algebra is given, as well as several algebraic results.

When

\Sigma

is triangulable, a
quantum cluster algebra

\mathcal A_q(\Sigma)

and
quantum upper cluster algebra

\mathcal U_q(\Sigma)

can be defined. These are algebras coming from the triangulations of

\Sigma

and the elementary moves between them. Cluster algebras have been a subject of significant recent interest, due in part to their extraordinary positivity and Laurent properties.

Natural inclusions

\mathcal A_q(\Sigma) \subseteq \mathsf {Sk}_q^o (\Sigma) \subseteq \mathcal U_q(\Sigma)

are shown, where

\mathsf {Sk}_q^o(\Sigma)

is a certain Ore localization of

\mathsf {Sk}_q(\Sigma)

. When

\Sigma

has at least two marked points in each component, these inclusions are strengthened to equality, exhibiting a quantum cluster structure on

\mathsf {Sk}_q^o(\Sigma)

.

The method for proving these equalities has the potential to show

\mathcal A_q = \mathcal U_q

for other classes of cluster algebras. As a demonstration of this fact, a new proof is given that

\mathcal A_q = \mathcal U_q

for acyclic cluster algebras.
The symplectic properties of the PGL($n,\mathbb C$)-gluing equations
Authors: Garoufalidis Stavros , Zickert Christian K.
Published: September 2016

In [12] we studied PGL(

n,\mathbb C

)-representations of a 3-manifold via a generalization of Thurston’s gluing equations. Neumann has proved some symplectic properties of Thurston’s gluing equations that play an important role in recent developments of exact and perturbative Chern–Simons theory. In this paper, we prove similar symplectic properties of the PGL(

n,\mathbb C

)-gluing equations for all ideal triangulations of compact oriented 3-manifolds.
Caught up in power: Exploring discursive frictions in community research
Authors: Hanson Cindy , Ogunade Adeyemi
Published: September 2016

This article outlines the debate around the emancipatory claims of community-based research (CBR) and identifies discursive frictions as a pivotal point upon which much of CBR practice revolves. Using a Foucauldian theoretical lens, we suggest that CBR is neither inherently emancipatory nor repressive, but that research outcomes are more often a product of power asymmetries in CBR relationships. To illustrate how power asymmetries in research relationships produce discursive frictions, several studies from our work and the literature are presented. The article provides examples of CBR relationships between the researcher and community members and relationships within the community to illustrate how power asymmetries and discursive frictions in these relationships dynamically influence research outcomes and thus alert researchers to the need to address power asymmetries not just before initiating CBR projects, but during CBR projects as well. We interrogate how power asymmetries and discursive frictions operate and are constructed in CBR in an attempt to highlight how research might be conducted more effectively and ethically. Finally, we indicate that some of the tensions and challenges associated with CBR might be ameliorated by the use of participatory facilitation methodologies, such as photo-voice and story circle discussion groups, that draw attention to power asymmetries and purposefully use more creative participatory tools to restructure power relationships and ultimately address the inequities that exist in the research process. Because CBR is continually caught up in power dynamics, we hope that highlighting some examples might offer an opportunity for increased dialogue and critical reflection on its claims of empowerment and emancipation.Keywords: discursive friction, Foucault, participatory methodologies, power asymmetries, research relationships, emancipatory research
'Culture' as HIV prevention: Indigenous youth speak up!
Authors: Wilson Ciann , Oliver Vanessa , Flicker Sarah , Sexual Health Network Native Youth , Prentice Tracey , Jackson Randy , Larkin June , Restoule Jean-Paul , Mitchell Claudia
Published: September 2016

This article explores the ways in which (a) Indigenous youth involved in an HIV intervention took up and reclaimed their cultures as a project of defining ‘self’, and (b) how Indigenous ‘culture’ can be used as a tool for resistance, HIV prevention and health promotion. Data were drawn from the Taking Action Project: Using arts-based approaches to develop Aboriginal youth leadership in HIV prevention. ‘By youth, for youth’ HIV education and awareness workshops were facilitated in six Indigenous communities across Canada, incorporating traditional and contemporary art forms to explore how youth perceived the links between structural inequality and HIV vulnerability. Over 100 youth participated, with 70 partaking in individual interviews to reflect on their experiences at the workshops. Interviews were audio-recorded, transcribed verbatim and analysed using NVivo software. Indigenous youth understood culture as a complex construct that included reconnecting to land, body, history, community and ceremony. For many youth, being Aboriginal and participating in cultural activities was seen as important for intergenerational healing, empowerment, health and combatting HIV. Youth spoke excitedly of their attempts to reclaim their languages and cultures despite barriers. They also understood art as a medium for self-expression and as an important site of cultural evolution.Our project demonstrates that the incorporation of culture within health strategies is important for effective HIV prevention amongst Indigenous youth. Reclaiming Indigenous cultures, languages and ceremonies may help to nurture future generations, diminish cycles of victimisation and combat hopelessness by reconnecting youth to stories of resistance and survival.Keywords: Indigenous youth, culture, HIV prevention, arts-based research
Influence urban infrastructure on water quality and greenhouse gas dynamics in streams
Authors: Smith Rose M. , Kaushal Sujay S. , Beaulieu Jake J. , Pennino Michael J. , Welty Claire
Published: September 2016

Abstract. Streams and rivers are significant sources of nitrous oxide (N2O), carbon dioxide (CO2), and methane (CH4), and watershed management can alter greenhouse gas (GHG) emissions from streams. GHG emissions from streams in agricultural watersheds have been investigated in numerous studies, but less is known about streams draining urban watersheds. We hypothesized that urban infrastructure significantly influences GHG dynamics along the urban watershed continuum, extending from engineered headwater flowpaths to larger streams. GHG concentrations and emissions were measured across streams draining a gradient of stormwater and sanitary infrastructure including: (1) complete stream burial, (2) in-line stormwater wetlands, (3) riparian/floodplain preservation, and (4) septic systems. Infrastructure categories significantly influenced drivers of GHG dynamics including carbon to nitrogen stoichiometry, dissolved oxygen, total dissolved nitrogen (TDN), and water temperature. These variables explained much of the statistical variation in nitrous oxide (N2O), carbon dioxide (CO2), and methane (CH4) saturation in stream water (r2 = 0.78, 0.78, 0.50 respectively). N2O saturation ratios in urban streams were among the highest reported for flowing waters, ranging from 1.1–47 across all sites and dates. The highest N2O saturation ratios were measured in streams draining nonpoint N sources from septic systems and were strongly correlated with TDN. CO2 was highly correlated with N2O across all sites and dates (r2 = 0.84), and CO2 saturation ratio ranged from 1.1–73. CH4 was always super-saturated with saturation values ranging from 3.0 to 2157. Differences in stormwater and sewer infrastructure influenced water quality, with significant implications for enhancing or minimizing stream CO2, CH4, and N2O emissions.
FUSION OF HYPERSPECTRAL AND VHR MULTISPECTRAL IMAGE CLASSIFICATIONS IN URBAN α–AREAS
Authors: Hervieu Alexandre , Le Bris Arnaud , Mallet Clément
Published: September 2016

Abstract. An energetical approach is proposed for classification decision fusion in urban areas using multispectral and hyperspectral imagery
at distinct spatial resolutions. Hyperspectral data provides a great ability to discriminate land-cover classes while multispectral data,
usually at higher spatial resolution, makes possible a more accurate spatial delineation of the classes. Hence, the aim here is to
achieve the most accurate classification maps by taking advantage of both data sources at the decision level: spectral properties of the
hyperspectral data and the geometrical resolution of multispectral images. More specifically, the proposed method takes into account
probability class membership maps in order to improve the classification fusion process. Such probability maps are available using
standard classification techniques such as Random Forests or Support Vector Machines. Classification probability maps are integrated
into an energy framework where minimization of a given energy leads to better classification maps. The energy is minimized using
a graph-cut method called quadratic pseudo-boolean optimization (QPBO) with α-expansion. A first model is proposed that gives
satisfactory results in terms of classification results and visual interpretation. This model is compared to a standard Potts models
adapted to the considered problem. Finally, the model is enhanced by integrating the spatial contrast observed in the data source of
higher spatial resolution (i.e., the multispectral image). Obtained results using the proposed energetical decision fusion process are
shown on two urban multispectral/hyperspectral datasets. 2-3% improvement is noticed with respect to a Potts formulation and 3-8%
compared to a single hyperspectral-based classification.