bluuebunny/crossref_metadata_2025_split huggingface dataset:
Aktivitas Antibakteri Komposit Ag – Tulang Ikan Cakalang pada Staphylococcus aureus
Authors: Pandelaki Elmi C.J. , Wuntu Audy D. , Aritonang Henry F. 
Published: July 2019

Telah dilakukan penelitian untuk mengetahui aktivitas antibakteri komposit Ag – tulang ikan cakalang pada Staphylococcus aureus. Tulang ikan cakalang dikeringkan, dihaluskan dan diayak 65 mesh kemudian dicampur dengan larutan perak nitrat dengan perbandingan Ag : tulang ikan sebesar 5:1 , 4:2, dan 3:3 selama 1 jam pada suhu 70 ℃. Campuran kemudian di kalsinasi pada suhu 650 ℃ selama 2 jam. Uji aktivitas antibakteri dari komposit yang terbentuk dikerjakan dengan metode sumuran menggunakan bakteri Staphylococcus aureus. Hasil penelitian menunjukkan aktivitas antibakteri pada perbandingan 4:2 dengan lama waktu pencampuran 1 jam paling efektif untuk menghambat bakteri Staphylococcus aureus dengan diameter zona hambat sebesar 25 mm. Penelitian ini menunjukkan valorisasi dari produk sampingan industri makanan seperti tulang ikan untuk membentuk bahan yang berpotensi berharga sebagai bahan implan tulang yang resistan terhadap infeksi bakteriResearch has been conducted to determine the antibacterial activity of Ag - Bone skipjack tuna toward Staphylococcus aureus. Skipjack tuna bone dried, mashed and sifted 65 mesh then mixed with silver nitrate solution with a ratio of Ag : fish bones of 5:1, 4:2, and 3:3 for 1 hour at 70 ℃. The mixture was then calcined at 650 ℃ for 2 hours. Antibacterial activity test of the composites formed was done by the method of wells using the bacteria Staphylococcus aureus. The results showed that antibacterial activity at a ratio of 4: 2 with a one-hour mixing time was most effective for inhibiting Staphylococcus aureus bacteria with a 25 mm inhibition zone diameter. This study shows the valorization of food industry byproducts such as fish bones to form potentially valuable ingredients for bone implants resistant to bacterial infections
Pertumbuhan fragmen bibit ukuran berbeda dalam pembudidayaan karang hias Acropora formosa
Authors: Sinipirang Frischa A. , Ngangi Edwin L.A. , Mudeng Joppy D. 
Published: July 2019

The objective of research was to evaluate the length and diameter of coral Acropora formosa cultivated with different seed size in Talengen Bay, Tabukan District, Sangihe Island Regency. Data were collected from May to June 2016. Experimental design used was Complete Randomized Design with three treatments, each with three replications. Size of seed as treatment consisted of A: 5 cm, B: 7 cm and C: 10 cm. The experiment was conducted using bench system measuring 60 x 60 cm2, while coral seed was A. formosa. The seed was gathered from the nature around research location. Growth data and water quality parameters were measured every two weeks . Research results showed that the highest absolute length growth was achieved in treatment A (average: 0.70 cm), followed by treatment C (average 0.46 cm) and the lowest was in treatment B (average 0.45 cm). The highest growth of coral diameter was observed in treatment A (average 0.05 cm) and followed by treatment C (average 0.03 cm) and treatment B (0.03 cm). Statistical analysis showed that absolute length growth and coral diameter were not significant. A. formosa cultured with different seed length in Talengen Bay had good growth in which the growth in length was faster than the growth in diameter. Keywords : Acropora Formosa. Absolute growth, Talengen Bay
Le diaconat inconnu de l’Emden réformée : le consistoire et la découverte des « diacres des domestiques de la foy »
Authors: Fehler Timothy 
Published: July 2019

Bien qu’Emden ait été connue comme la « Genève du nord » à la fin du XVIe siècle, l’existence, en son sein, d’une institution caritative spécifiquement reformée était ignorée jusqu’à récemment. Une lecture méticuleuse des registres du consistoire, en les comparant aux livres de comptes diaconaux et des ordonnances ecclésiastiques révèle qu’Emden a eu en fait trois diaconats séparés pendant un certain temps. Ce troisième diaconat, qui se fait appeler les « Diacres des Domestiques de la foy », souligne une tentative par certains, dans la direction de l’Église d’Emden, de mettre en application une conception idéale de la théologie réformée, celle des « domestiques de la foi », pour interroger les principes de bienfaisance. En identifiant l’existence de ce diaconat, les problèmes de sa création et impossibilité à survivre, nous gagnons en compréhension sur les buts et les programmes des administrateurs charitables d’Emden dans les premières décennies de la Réforme. Cette histoire illustre les avantages et les pièges de la richesse des sources que sont les registres du consistoire. Dans la deuxieme partie de l’article, il s’agit de mieux comprendre les manières dont les ministres ont tenté d’employer les divers diaconats suivant les conceptions religieuses rivales de la communauté réformée. Certaines de ces rivalités se situaient entre les diacres des Haussitzenden – avec leurs « pauvres communs et sauvages » – et les diacres des Domestiques de la foi – avec leurs « pauvres membres du Christ » ; d’autres entre les diacres locaux (Haussitzenden) et les diacres étrangers (Fremdlingen) avec les problèmes créés par l’afflux des réfugiés ; enfin entre les diacres et les pauvres francophones et néerlandophones dans le diaconat des Fremdlingen. Cependant, cette rivalité diaconale, offre des perspectives sur les différentes visions compétitives de la Réforme à la fin du XVIe siècle à Emden.
Outcome of conventional transarterial chemoembolization (cTACE) in the management of spontaneously ruptured hepatocellular carcinoma
Authors: Patidar Yashwant , Khisti Rohit , Yadav Ankusha , Mukund Amar , Sarin Shiv K 
Published: July 2019

Abstract
Background and Objectives: Hepatocellular carcinoma (HCC) is a highly vascular tumor and mortality after spontaneous rupture of HCC remains considerably high. There are no definitive guidelines for the management of ruptured HCC and no fixed protocol has been proposed in the literature. We evaluated the outcome of conventional transarterial chemoembolization (cTACE) in the management of spontaneously ruptured HCC and factors affecting the outcome of cTACE. Materials and Methods: This is a single center retrospective study analyzing the outcome of patients presenting with spontaneous rupture of HCC who received cTACE from January 2014 to June 2017. These patients were followed up periodically for clinical and imaging findings to ascertain the technical effectiveness along with survival. Results: Sixteen patients were identified who received cTACE for ruptured HCC. Majority of the patients (81.3%) had abdominal pain, while 25% had hypovolemic shock at initial presentation. Complete response and partial response were seen in 35.7% and 57.1% of patients, respectively. One patient (7.1%) showed progressive disease in form of peritoneal spread along the liver surface. The overall cumulative survival rates at 30 days, 180 days, and at 1 year were 87.5%, 72.2%, and 54.1%, respectively. Conclusion: cTACE is safe in patients with spontaneous HCC rupture and it leads to immediate hemostasis along with overall survival advantage. Achieving quick hemostasis may be a key to better outcome.
Polymorphism in Mastogloia (Bacillariophyceae) revisited
Authors: Edlund Mark B. , Burge David R.L. 
Published: July 2019

Background and aims – Mastogloia grevillei has been shown to be a polymorphic diatom species, producing frustules with morphology of Mastogloia grevillei, frustules with morphology of M. danseyi, and more rarely, heteromorphic or Janus cells with one valve of each morphology.
Methods – We investigated a wetland population from Iowa (USA) known to produce heteromorphic valves and the type material of Mastogloia grevillei and M. danseyi to clarify the nomenclature of this taxon.
Key results – The polymorphic shift in stria construction and density between Mastogloia grevillei and M. danseyi occurs in populations sampled decades apart, among widely separated populations, within single genotypes, and independent of sexual reproduction. Combining our observations with observations of type material for Mastogloia grevillei and M. danseyi we propose that Mastogloia danseyi f. grevillei stat. nov. be recognized as an ecophenotype of the nominate Mastogloia danseyi, as the latter taxon has nomenclatural priority. We also provide lectotypes for both taxa.
Conclusions – Variability in stria structure and density between the two taxa is discontinuous and represents a probable polyphenism for diatoms that is likely triggered by changing total dissolved solids, conductivity, and/or solutes.
Submesoscale dispersion of surface drifters in a coastal sea near offshore wind farms
Authors: Callies Ulrich , Carrasco Ruben , Floeter Jens , Horstmann Jochen , Quante Markus 
Published: July 2019

Abstract. We analysed relative dispersion of surface drifters released as pairs (six instances) or triplets (two instances) during three field experiments conducted in the German Bight in close proximity to wind farms. There is some tentative evidence that nearly exponential growth of relative dispersion (non-local dispersion) preferably occurs for drifter pairs that are most exposed to the influence of a wind farm. Kinetic energy spectra and velocity structure functions are analysed with regard to the assumption that turbulent energy could be injected by tides, possibly also via an interaction between tidal currents and wind turbine towers. Applicability of inertial range turbulence theory, however, can be doubted given distinct peaks of overtides observed in velocity power spectra. More comprehensive studies would be needed to better separate submesoscale effects of wind farms, tides and possibly baroclinic instabilities on observed drifter behaviour in a complex coastal environment.
Revision of the Genus Schizoretepora (Bryozoa, Cheilostomatida) from the Atlantic-Mediterranean region
Authors: Madurell Teresa , Spencer Jones Mary , Zabala Mikel 
Published: July 2019

We examined the type specimens and historical collections holding puzzling Atlantic and Mediterranean material belonging to the genus Schizoretepora Gregory, 1893. We performed a detailed study of the colonial characters and re-describe the resulting species and those that have rarely been found or have poor original descriptions. As a result of this revision, nine species are found in the northeast Atlantic and Mediterranean. Six of them are re-described and illustrated: S. aviculifera (Canu & Bassler, 1930), S. calveti d’Hondt, 1975, S. imperati (Busk, 1884), S. sp. nov.? (= S. imperati sensu O’Donoghue & de Watteville 1939) (in open nomenclature, specimen lacks ovicells), S. pungens (Canu & Bassler, 1928) and S. solanderia (Risso, 1826). For S. dentata (Calvet, 1931), no material remains; furthermore, S. hassi Harmelin, Bitar & Zibrowius, 2007 and S. serratimargo (Hincks, 1886) have recently been described and redescribed, respectively. This new arrangement attains a coherent geographical distribution: S. imperati seems restricted to the eastern Atlantic, S. dentata and S. calveti are deepwater species from Atlantic islands, S. pungens and S. aviculifera dwell on the African coasts of the Western Mediterranean, S. hassi and S. sp. nov.? (=S. imperati sensu O’Donogue & de Wateville 1939) are confined to the Eastern Mediterranean, and S. solanderia and S. serratimargo live on the European coasts of the Mediterranean.
Endoscopic Retrograde Cholangiopancreatography in Patients With Surgically Altered Gastrointestinal Anatomy: A Retrospective Study
Authors: Fujimoto Takaaki , Mori Yasuhisa , Nakashima Yohei , Ohtsuka Takao , Nakamura So , Gotoh Yoshitaka , Date Kenjiro , Sadakari Yoshihiko , Nakata Kohei , Miyasaka Yoshihiro , Osoegawa Takashi , Aso Akira , Ihara Eikichi , Nakamura Kazuhiko , Ogawa Yoshihiro , Shimizu Shuji , Nakamura Masafumi 
Published: July 2019

Objective:
The aim of this study was to evaluate the difficulty of endoscopic retrograde cholangiopancreatography (ERCP) procedures when performed in patients with different types of surgically altered gastrointestinal (GI) anatomies.

Summary of background data:
Clinical data of 102 consecutive patients with surgically altered GI anatomy who underwent ERCP using a double-balloon enteroscope or a regular gastroendoscope between January 2008 and March 2015 were retrospectively reviewed.

Methods:
The success rate of reaching the destination, the time until reaching the destination, the success rate of the procedures, and complications were assessed for each type of altered GI anatomy using a double-balloon enteroscope and a regular gastroendoscope.

Results:
A total of 180 ERCP procedures were performed. The total success rate of reaching the destination was 91% (164 of 180), and that of treatment was 88% (144 of 164). The success rate of reaching the destination in patients with Roux-en-Y hepaticojejunostomy (HJ + R-Y) was significantly lower than that of the other types of reconstruction. The time until reaching the destination was significantly longer in patients after R-Y reconstruction (gastrectomy or HJ) than that after Billroth-II gastrectomy or pancreatoduodenectomy. GI perforation occurred in 2 patients after R-Y reconstruction (1 patient after gastrectomy, and 1 patient after HJ). However, no other complications, such as severe pancreatitis, bleeding, or air embolism, were observed.

Conclusions:
ERCP for patients with surgically altered GI anatomy is feasible. Improvement of the success rate of reaching the destination in patients after HJ + R-Y and prevention of perforation in those with R-Y reconstruction are necessary.
How Small Heterocycles Make a Reaction Network of Amino Acids and Nucleotides Efficient in Water
Authors: Tremmel Peter , Griesser Helmut , Steiner Ulrich E. , Richert Clemens 
Published: July 2019

AbstractOrganisms use enzymes to ensure a flow of substrates through biosynthetic pathways. How the earliest form of life established biosynthetic networks and prevented hydrolysis of intermediates without enzymes is unclear. Organocatalysts may have played the role of enzymes. Quantitative analysis of reactions of adenosine 5’‐monophosphate and glycine that produce peptides, pyrophosphates, and RNA chains reveals that organocapture by heterocycles gives hydrolytically stabilized intermediates with balanced reactivity. We determined rate constants for 20 reactions in aqueous solutions containing a carbodiimide and measured product formation with cyanamide as a condensing agent. Organocapture favors reactions that are kinetically slow but productive, and networks, over single transformations. Heterocycles can increase the metabolic efficiency more than two‐fold, with up to 0.6 useful bonds per fuel molecule spent, boosting the efficiency of life‐like reaction systems in the absence of enzymes.
Shape Rememorization of an Organosuperelastic Crystal through Superelasticity–Ferroelasticity Interconversion
Authors: Sakamoto Shunichi , Sasaki Toshiyuki , Sato‐Tomita Ayana , Takamizawa Satoshi 
Published: July 2019

AbstractAs altering permanent shapes without loss of material function is of practical importance for material molding, especially for elastic materials, shape‐rememorization ability would enhance the utility of elastic crystalline materials. Since diffusionless plastic deformability can preserve the crystallinity of materials, the interconversion of diffusionless mechanical deformability between superelasticity and ferroelasticity could enable shape rememorization of superelastic single crystals. This study demonstrates the shape rememorization of an organosuperelastic single crystal of 1,4‐dicyanobenzene through time‐reversible interconversion of superelasticity–ferroelasticity relaxation by holding the mechanically twinned crystal without heating. The shape‐rememorization ability of the organosuperelastic crystal indicates the compatibility of superelasticity (antiferroelasticity) and ferroelasticity as well as the intrinsic workability of organic crystalline materials capable of recovering their crystal functions under mild conditions.
Boosting Luminance Energy Transfer Efficiency in Upconversion Nanoparticles with an Energy‐Concentrating Zone
Authors: Zhang Xiaobo , Chen Weiwei , Xie Xiaoyu , Li Yuyi , Chen Desheng , Chao Zhicong , Liu Chenghui , Ma Haibo , Liu Ying , Ju Huangxian 
Published: July 2019

AbstractDespite the successful application of upconversion nanoparticles (UCNPs), their low energy transfer efficiency is still a bottleneck to further applications. Here we design UCNPs with a multilayer structure, including an inert NaYF4:Gd core and an energy‐concentrating zone (ECZ), for efficient energy concentration. The ECZ is composed of an emitting layer of NaYF4:Yb,Er and an absorption layer of NaYF4:Nd,Yb with antenna IRDye 800CW to manipulate the energy transfer. The stable and tight packing of 800CW linked originally with a bisphosphonate ligand improves greatly the transfer efficiency. The proximity of the emitting layer to both surface antenna and accepter also decreases energy depletion. Compared to classical UCNPs, the ECZ UCNPs show 3600 times higher luminescence intensity with an energy transfer efficiency near 60 %. In proof‐of‐concept applications, this type of structure was employed for Hg2+ detection and for photodynamic therapy under hypoxic conditions.
Visible‐Light‐Driven CO2 Reduction by Mesoporous Carbon Nitride Modified with Polymeric Cobalt Phthalocyanine
Authors: Roy Souvik , Reisner Erwin 
Published: July 2019

AbstractThe integration of molecular catalysts with low‐cost, solid light absorbers presents a promising strategy to construct catalysts for the generation of solar fuels. Here, we report a photocatalyst for CO2 reduction that consists of a polymeric cobalt phthalocyanine catalyst (CoPPc) coupled with mesoporous carbon nitride (mpg‐CNx) as the photosensitizer. This precious‐metal‐free hybrid catalyst selectively converts CO2 to CO in organic solvents under UV/Vis light (AM 1.5G, 100 mW cm−2, λ>300 nm) with a cobalt‐based turnover number of 90 for CO after 60 h. Notably, the photocatalyst retains 60 % CO evolution activity under visible light irradiation (λ>400 nm) and displays moderate water tolerance. The in situ polymerization of the phthalocyanine allows control of catalyst loading and is key for achieving photocatalytic CO2 conversion.
Bioinspired Design Provides High‐Strength Benzoxazine Structural Adhesives
Authors: Higginson Cody J. , Malollari Katerina G. , Xu Yunqi , Kelleghan Andrew V. , Ricapito Nicole G. , Messersmith Phillip B. 
Published: July 2019

AbstractA synthetic strategy to incorporate catechol functional groups into benzoxazine thermoset monomers was developed, leading to a family of bioinspired small‐molecule resins and main‐chain polybenzoxazines derived from biologically available phenols. Lap‐shear adhesive testing revealed a polybenzoxazine derivative with greater than 5 times improved shear strength on aluminum substrates compared to a widely studied commercial benzoxazine resin. Derivative synthesis identified the catechol moiety as an important design feature in the adhesive performance and curing behavior of this bioinspired thermoset. Favorable mechanical properties comparable to commercial resin were maintained, and glass transition temperature and char yield under nitrogen were improved. Blending of monomers with bioinspired main‐chain polybenzoxazine derivatives provided formulations with enhanced shear adhesive strengths up to 16 MPa, while alloying with commercial core–shell particle‐toughened epoxy resins led to shear strengths exceeding 20 MPa. These results highlight the utility of bioinspired design and the use of biomolecules in the preparation of high‐performance thermoset resins and adhesives with potential utility in transportation and aerospace industries and applications in advanced composites synthesis.
Poly(vinylidene fluoride) membranes fabricated by vapor‐induced phase separation (VIPS) for the adsorption removal of VB12 from aqueous solution
Authors: Wang Miao , Huang Yuan‐Wei , Chen Yan , Yan Xi , Xu Wen‐Yan , Lang Wan‐Zhong 
Published: July 2019

ABSTRACTPoly(vinylidene fluoride) (PVDF) membranes without any additives were fabricated by a vapor‐induced phase separation method and applied to the adsorption separation of vitamin B12 (VB12) from aqueous solution. The effects of preparation conditions including PVDF concentration in dope, vapor humidity, and exposure time on the morphologies, mechanical strength, adsorption, and permeation performances are investigated in detail. The results indicate that the PVDF membranes have a uniform spongy structure without macrovoids. The lower polymer concentration, relatively higher humidity, and longer exposure time easily leads to the formation of larger polymer nodules in the membrane matrix and lower mechanical strength of membranes. The resulted PVDF membranes exhibit superior separation efficiency for both static and dynamic adsorption for VB12. In the ultrafiltration (adsorption)‐regeneration cycles, the permeation flux remains above 2500 L m−2 h−1 bar−1 and the VB12 removal ratio is above 92% after six cycles. The prepared PVDF membranes show superior adsorption capacities to other traditional adsorbents (such as activated carbons, nanoclay, etc.) for VB12 removal. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48179.
Fabrication of flower clusters‐like superhydrophobic surface via a UV curable coating of ODA and V‐PDMS
Authors: Shen Lixiang , Lai Yingying , Fu Heqing 
Published: July 2019

ABSTRACTIn this work, a flower clusters‐like superhydrophobic surface was fabricated via an ultraviolet (UV) curable coating of octadecylamine (ODA) and vinyl‐terminated polydimethylsiloxane (V‐PDMS). ODA self‐assembled into many flower clusters‐like structures on the surface of the coating, increasing the roughness of the coating surface without additional nanoparticles. V‐PDMS formed a highly crosslinked network under a UV lamp, which would be helpful for a robust superhydrophobic surface. The obtained PDMS/ODA fabric showed water contact angle of 161° and sliding angle of 5°. The durability of the superhydrophobic surface was tested by water impacting, tube brush scrubbing, knife scratching, hand twisting, finger pressing, tape adhesion, abrasion, continuous rinsing, and chemical conditions. The experimental results indicated that the superhydrophobic surface have good durability for long service life. Moreover, the PDMS/ODA fabric could selectively absorb oils from water with good separation performance. This work will provide a facile, low cost, and versatile method to prepare superhydrophobic surfaces, and enhance their efficiency of oil–water separation. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48210.