bluuebunny/crossref_metadata_2025_split huggingface dataset:
Re-proposing Cultural Based Curriculum System of Tamansiswa as the National Education Foundation in Indonesia
Authors: Rizki Ramadhan  
Published: July 2024

The problems faced by the Indonesia educational system should have been examined deeply as it seems difficult to apply an educational system that can be implemented effectively. This issue can be seen from the number of curriculum changes recently. Considering that problems, developing educational system based on its own nation culture will be considered to be more effective in order to build the characters of the students. By developing Ki Hadjar Dewantara’s idea with his system, the educational system in Indonesia will be more practical and suitable, since this idea has been admitted as modern thought or ideas which will give a lot of beneficial for the learners.
Palladium‐Catalyzed Oxidative Annulation via CH/NH Functionalization: Access to Substituted Pyrroles
Authors: Peng Shiyong , Wang Lei , Huang Jiayao , Sun Shaofa , Guo Haibing , Wang Jian 
Published: September 2013

AbstractPyrroles, ubiquitous bioactive heterocycles in nature, are readily prepared via a palladium‐catalyzed oxidative annulation of cyclic trans‐enamines to various internal alkynes in the absence of a directing group.magnified image
Contact mechanics and tribology of polymer composites
Authors: Myshkin Nikolai , Kovalev Alexander , Spaltman Dirk , Woydt Mathias 
Published: September 2013

ABSTRACTWe review contact mechanics with emphasis on the rheological (time dependent) properties of polymers and their relations to surface roughness, material properties, and friction as well as wear behavior of rubbing polymer surfaces. The main concept of polymer mechanics related to tribology consists of three basic elements involved in friction: deformation resulting in the real area of contact of rough surfaces, contact adhesion, and shear and rupture of materials in the contact during the sliding friction. The results of classical work are included, which addresses the real contact area calculation and the description of adhesion interaction between rough surfaces. A brief review of experimental investigations concerning the surface characterization by means of bearing curves, the intermolecular force interaction using the adhesion parameter, the effect of temperature on the real contact area, the formation of transferred polymer film during friction, and tribological behavior of ultrathin polymer layers are presented and their implications discussed. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 39870.
Identification of optimum synthesis conditions for a novel anion exchange membrane by response surface methodology
Authors: Kikhavani Tavan , Ashrafizadeh Seyed Nezammeddin , Van der Bruggen Bart 
Published: September 2013

ABSTRACTThe Response Surface Methodology (RSM) was employed for the optimization of the synthesis conditions of an anion exchange membrane. A novel chlorinated‐polypropylene heterogeneous anion exchange membrane was made via phase inversion. A nonionic surfactant was incorporated into the composition as an additive to enhance the membrane properties. The membrane performance was measured in terms of ion exchange capacity (IEC) and permselectivity. An experimental design was used to quantify the effects of variables including the ratio of resin/polymer, the ratio of additive/total solid, and the ratio of solvent/polymer, on IEC and permselectivity. For each function, a quadratic model was developed to correlate the relationship between variables and the response. The results demonstrated the accuracy of the two models. The anion exchange membrane with the best combination of a high IEC and high permselectivity was synthesized with a solvent/polymer ratio of 18.63 (v/w), resin/polymer ratio of 1 (w/w), and additive/total solid ratio of 0.02 (w/w). © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 39888.
One‐Step Room‐Temperature Synthesis of [Al]MCM‐41 Materials for the Catalytic Conversion of Phenylglyoxal to Ethylmandelate
Authors: Wang Zichun , Jiang Yijiao , Rachwalik Rafal , Liu Zhongwen , Shi Jeffrey , Hunger Michael , Huang Jun 
Published: September 2013

AbstractMesoporous [Al]MCM‐41 materials with nSi/nAl ratios of 15 to 50 suitable for the direct catalytic conversion of phenylglyoxal to ethylmandelate have been successfully synthesized at room temperature within 1 h. The surface areas and pore sizes of the obtained [Al]MCM‐41 materials are in the ranges of 1005–1246 m2 g−1 and 3.44–3.99 nm, respectively, for the different nSi/nAl ratios. For all [Al]MCM‐41 catalysts, most of the Al species were tetrahedrally coordinated with Si in the next coordination sphere of atoms. 1H and 13C magic‐angle spinning NMR spectroscopic investigations indicated that the acid strength of the SiOH groups on these [Al]MCM‐41 catalysts and the density of these surface sites are enhanced with increasing Al content in the synthesis gels. These surface sites with enhanced acid strength were found to be catalytically active sites for phenylglyoxal conversion. The [Al]MCM‐41 material with nSi/nAl=15 showed the highest phenylglyoxal conversion (93.4 %) and selectivity to ethylmandelate (96.9 %), whereas the [Al]MCM‐41 material with nSi/nAl=50 reached the highest turnover frequency (TOF=99.3 h−1). This is a much better catalytic performance than that of a dealuminated zeolite Y (TOF=1.7 h−1) used as a reference catalyst, which is explained by lower reactant transport limitations in mesoporous materials than that in the microporous zeolite.
Population pharmacokinetics and safety of AZD1446, a neuronal nicotinic receptor agonist, administered in healthy volunteers
Authors: Boström Emma , Bohnstedt Kristina Claeson , Jostell Karl‐Gustav , Alverlind Sofie , Huledal Gunilla , Paulsson Björn , Hårdemark Hans‐Göran , Öhd John , Lindholm Sara 
Published: September 2013

AbstractAZD1446 is a highly selective agonist of central α4β2 and α2β2 neuronal nicotinic receptors. The compound has been shown to improve cognition in preclinical studies and thus has potential for treatment of cognitive disorders, including Alzheimer's disease (AD). This report presents the pharmacokinetics of AZD1446 based on a pooled population pharmacokinetic analysis of five studies in Caucasian and Japanese healthy volunteers. The model described the inter‐individual and inter‐occasion variability as well as identified the impact of covariates such as age and ethnicity on the parameters. Single doses of AZD1446 ranged between 0.5 and 350 mg and the multiple‐dose regimens ranged between 10 and 100 mg four times daily. The maximum duration was 4 weeks. AZD1446 exhibited modest variability in CL/F. Compared with Caucasian subjects, Japanese subjects had approximately 25% higher rate of absorption and higher renal clearance as well as volume of distribution, resulting in a similar half‐life. Compared with elderly subjects, young subjects had approximately 25% lower rate of absorption. Due to lower creatinine clearance, renal clearance was lower in elderly subjects. AZD1446 was safe and well tolerated, with nausea, headache and dizziness as the most frequently reported adverse events.
Hadamard Matrices Modulo 5
Authors: Lee Moon Ho , Szöllősi Ferenc 
Published: September 2013

AbstractIn this paper, we introduce modular symmetric designs and use them to study the existence of Hadamard matrices modulo 5. We prove that there exist 5‐modular Hadamard matrices of order n if and only if or . In particular, this solves the 5‐modular version of the Hadamard conjecture.
Minimal cooling rate dependence of ice nuclei activity in the immersion mode
Authors: Wright Timothy P. , Petters Markus D. , Hader John D. , Morton Travis , Holder Amara L. 
Published: September 2013

AbstractWe present new measurements of the time dependence of the ice‐nucleating ability of a wide range of materials including the minerals montmorillonite and kaolinite, the biological proxy ice nuclei Icemax, and flame soot generated from the incomplete combustion of ethylene gas. We also present time dependence for ambient ice nuclei collected from rainwater samples. Our data show that the time dependence for all materials studied here is weak, suggesting that the modified singular approximation is valid over the range of times and temperatures encountered for mixed phase clouds.
Comparison of loading rate‐dependent injury modes in a murine model of post‐traumatic osteoarthritis
Authors: Lockwood Kevin A. , Chu Bryce T. , Anderson Matthew J. , Haudenschild Dominik R. , Christiansen Blaine A. 
Published: September 2013

AbstractPost‐traumatic osteoarthritis (PTOA) is a common long‐term consequence of joint injuries such as anterior cruciate ligament (ACL) rupture. In this study we used a tibial compression overload mouse model to compare knee injury induced at low speed (1 mm/s), which creates an avulsion fracture, to injury induced at high speed (500 mm/s), which induces midsubstance tear of the ACL. Mice were sacrificed at 0 days, 10 days, 12 weeks, or 16 weeks post‐injury, and joints were analyzed with micro‐computed tomography, whole joint histology, and biomechanical laxity testing. Knee injury with both injury modes caused considerable trabecular bone loss by 10 days post‐injury, with the Low Speed Injury group (avulsion) exhibiting a greater amount of bone loss than the High Speed Injury group (midsubstance tear). Immediately after injury, both injury modes resulted in greater than twofold increases in total AP joint laxity relative to control knees. By 12 and 16 weeks post‐injury, total AP laxity was restored to uninjured control values, possibly due to knee stabilization via osteophyte formation. This model presents an opportunity to explore fundamental questions regarding the role of bone turnover in PTOA, and the findings of this study support a biomechanical mechanism of osteophyte formation following injury. © 2013 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 32:79–88, 2014.
Efficient Cellulose Solvent: Quaternary Ammonium Chlorides
Authors: Kostag Marc , Liebert Tim , El Seoud Omar A. , Heinze Thomas 
Published: September 2013

Pure quaternary tetraalkylammonium chlorides with one long alkyl chain dissolved in various organic solvents constitute a new class of cellulose solvents. The electrolytes are prepared in high yields and purity by Menshutkin quaternization, an inexpensive and easy synthesis route. The pure molten tetraalkylammonium chlorides dissolve up to 15 wt% of cellulose. Cosolvents, including N,N‐dimethylacetamide (DMA), may be added in large excess, leading to a system of decreased viscosity. Contrary to the well‐established solvent DMA/LiCl, cellulose dissolves in DMA/quaternary ammonium chlorides without any pretreatment. Thus, the use of the new solvent avoids some disadvantages of DMA/LiCl and ionic liquids, the most extensively employed solvents for homogeneous cellulose chemistry.
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Triazole‐Containing Hydrogels for Time‐Dependent Sustained Drug Release
Authors: Mishra Vivek , Jung Seo‐Hyun , Park Jong Mok , Jeong Han Mo , Lee Hyung‐il 
Published: September 2013

The purpose of this study is to develop novel triazole‐containing hydrogels (TGs) as drug carrier and to investigate the sustained drug release accomplished by their time‐dependent swelling behavior. The synthetic pathway of TGs includes: (1) DCC‐coupling on hydroxyethyl methacrylate (HEMA) to prepare HEMA‐alkyne (HA), (2) click‐coupling to prepare a triazole‐ring‐containing monomer (TM), and (3) the synthesis of a series of TGs. The aggregation between triazole rings is found to be responsible for drug release controllability. Rhodamine 6G is studied as a model anticancer drug for release experiments. The effects of pH and temperature on the properties of sustained drug release are also studied.
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Oleuropein and hydroxytyrosol activate GPER/ GPR30‐dependent pathways leading to apoptosis of ER‐negative SKBR3 breast cancer cells
Authors: Chimento Adele , Casaburi Ivan , Rosano Camillo , Avena Paola , De Luca Arianna , Campana Carmela , Martire Emilia , Santolla Maria Francesca , Maggiolini Marcello , Pezzi Vincenzo , Sirianni Rosa 
Published: September 2013

ScopeWe have previously demonstrated that oleuropein (OL) and hydroxytyrosol (HT) reduce 17β‐estradiol‐mediated proliferation in MCF‐7 breast cancer (BC) cells without affecting the classical genomic action of estrogen receptor (ER), but activating instead the ERK1/2 pathway. Here, we hypothesized that this inhibition could be mediated by a G‐protein‐coupled receptor named GPER/GPR30. Using the ER‐negative and GPER‐positive SKBR3 BC cells as experimental model, we investigated the effects of OL and HT on GPER‐mediated activation of downstream pathways.Methods and resultsDocking simulations and ligand‐binding studies evidenced that OL and HT are able to bind GPER. MTT cell proliferation assays revealed that both phenols reduced SKBR3 cell growth; this effect was abolished silencing GPER. Focusing on OL and HT GPER‐mediated pathways, using Western blot analysis we showed a sustained ERK1/2 activation triggering an intrinsic apoptotic pathway.ConclusionShowing that OL and HT work as GPER inverse agonists in ER‐negative and GPER‐positive SKBR3 BC cells, we provide novel insights into the potential of these two molecules as tools in the therapy of this subtype of BC.
Lithiumionenakkus für den Chemieunterricht
Authors: Hasselmann Martin , Quarthal Dominik , Klaus Maximilian , Wagner Corinna , Mößner Bernd , Oetken Marco 
Published: September 2013

AbstractEs ist eine der Aufgaben des naturwissenschaftlichen Unterrichts, Schülern Techniken nahezubringen, die im Alltag eine wichtige Rolle spielen. Ein Beispiel sind moderne elektrochemische Speichermedien.
Qualitätssicherung für Mykotoxinanalytik: Referenzmaterialien
Authors: Koch Matthias , Köppen Robert 
Published: September 2013

AbstractIn den letzten Jahren hat die Europäische Union neue Grenzwerte für Schimmelpilzgifte in Lebensmitteln festgelegt, weitere werden diskutiert. Parallel dazu sind neue Referenzmaterialien erforderlich.
MQBV: multicast quality of service swarm bee routing for vehicular ad hoc networks
Authors: Bitam Salim , Mellouk Abdelhamid , Fowler Scott 
Published: September 2013

AbstractVehicular ad hoc networks (VANETs) are witnessing in recent years a rapid development for road transmissions and are considered as one of the most important types of next generation networks, in which drivers can have access anywhere and anytime to information. However, vehicles have to deal with many challenges such as the links failures due to their frequent mobility as well as limited degrees of freedom in their mobility patterns. In this paper, we propose a new quality of service multicast and multipath routing protocol for VANETs, based on the paradigm of bee's communication, called multicast quality of service swarm bee routing for VANETs (MQBV). The MQBV finds and maintains robust routes between the source node and all multicast group members. Therefore, the average end‐to‐end delay and the normalized overhead load should be reduced, while at the same time increasing the average bandwidth and the packet delivery ratio. Extensive simulation results were obtained using ns‐2 simulator in a realistic VANET settings and demonstrated the efficiency of the proposed protocol. Copyright © 2013 John Wiley & Sons, Ltd.
Effect of wind on the accuracy of externally attached, temperature‐sensitive radiotransmitters
Authors: Klug Brandon J. , Barclay Robert M. R. 
Published: September 2013

AbstractRecording and interpreting thermoregulatory patterns is important in determining many aspects of animal ecology and behavior. Externally attached radiotransmitters are a relatively non‐invasive method to continuously monitor skin temperature as a proxy for core body temperature. However, the effects of ambient conditions, such as wind or rain, on the accuracy of externally attached radiotransmitters are often overlooked. We investigated the effect of wind speed on the accuracy of radiotransmitters. We found that the accuracy of radiotransmitter readings was correlated with wind speed, with higher wind speeds resulting in underestimations of skin temperature. These effects may result in misinterpretations of recorded data, and ultimately may lead to inaccuracies in describing behavior. © 2013 The Wildlife Society.
Marking power lines to reduce avian collisions near the Audubon National Wildlife Refuge, North Dakota
Authors: Sporer Misti K. , Dwyer James F. , Gerber Brian D. , Harness Richard E. , Pandey Arun K. 
Published: September 2013

ABSTRACTOverhead power lines can pose collision risks to birds. Risks may be mitigated through marking lines with high‐visibility devices, but the effectiveness of line marking remains unclear. Effectiveness is particularly poorly described for lines bisecting open water, where detection of carcasses can be difficult. We marked 3 of 9 spans (lines between adjacent structures) along a causeway crossing open water and 2 adjacent spans over lake shores between Lake Sakakawea and Lake Audubon near Audubon National Wildlife Refuge, North Dakota, USA. Over 3 years, we found 1,186 avian carcasses, including 276 attributed to power‐line collision. American coots (Fulica americana; n = 83) and double‐crested cormorants (Phalacrocorax auritus; n = 27) were the species most commonly associated with power‐line collision, but we also found carcasses of 51 other species, including a piping plover (Charadrius melodus; n = 1). Multi‐variable modeling indicated line marking over open water reduced predicted collisions per span per season (mid‐April through mid‐October, 2006–2008) from 10.3 to 5.8. Birds with high‐aspect‐ratio wings benefitted most from line marking (e.g., shorebirds and gulls). If the 9 open‐water spans we studied were unmarked for 30 years, we predicted 2,775 collisions. We predicted only 1,560 collisions if all of these spans were marked. Our data demonstrate that a wide variety of avian species are at risk of collision with lines bisecting open water, marking lines can reduce collision risk, and because collisions persisted and some line markers fell off power lines, improvements to effectively mark lines are needed. © 2013 The Wildlife Society.
Genetic Bio-Ancestry and Social Construction of Racial Classification in Social Surveys in the Contemporary United States
Authors: Guo Guang , Fu Yilan , Lee Hedwig , Cai Tianji , Mullan Harris Kathleen , Li Yi 
Published: September 2013

AbstractSelf-reported race is generally considered the basis for racial classification in social surveys, including the U.S. census. Drawing on recent advances in human molecular genetics and social science perspectives of socially constructed race, our study takes into account both genetic bio-ancestry and social context in understanding racial classification. This article accomplishes two objectives. First, our research establishes geographic genetic bio-ancestry as a component of racial classification. Second, it shows how social forces trump biology in racial classification and/or how social context interacts with bio-ancestry in shaping racial classification. The findings were replicated in two racially and ethnically diverse data sets: the College Roommate Study (N = 2,065) and the National Longitudinal Study of Adolescent Health (N = 2,281).
Novel percutaneous femoral arterial-transthoracic approach for closure of ascending aortic pseudoaneurysm with a septal occluder device in a child
Authors: Masri Samer I. , Majdalani Marianne N. , Bitar Fadi F. 
Published: September 2013

AbstractAscending aortic pseudoaneurysms are a rare complication following cardiac surgery. Their traditional surgical management carries high morbidity and mortality, especially in patients with multiple comorbidities. Transcatheter closure of these pseudoaneurysms using a septal occluder device has been previously reported in adults as an alternative approach with fewer complications. We report the first case of a novel percutaneous femoral arterial-transthoracic approach for exclusion of an ascending aortic pseudoaneurysm with an Amplatzer atrial septal occluder device in a 9-year-old child with Takayasu's arteritis.
Persistent valve of systemic venous sinus: a cause of neonatal cyanosis
Authors: Qureshi Ahmad U. , Latiff Haifa A. , Sivalingam Sivakumar 
Published: September 2013

AbstractIncomplete involution of valve of systemic venous sinus can present across a spectrum of anatomical lesions ranging from eustachian valve to division of right atrium (cor triatriatum dexter) with overlapping features. We present the case of a neonate presenting with cyanosis, having persistent valve of systemic venous sinus with anatomical details of the redundant tissue in right atrium suggesting an intermediate form between Chiari network and division of right atrium.
‘How Do You Read It?’ Rowan Williams, Marilynne Robinson and Mapping a Postmodern Reading of the Good Samaritan Parable
Authors: Walker Maxine E. 
Published: September 2013

AbstractTo explicate the Good Samaritan parable, this paper employs Rowan Williams’ interpretations of the parabolic imagination as explored inOn Christian Theology(2000) and in Marilynne Robinson's novelHousekeeping(1980). Williams identifies reading strategies that open possibilities for reading parables through the lens of contemporary texts. Robinson's novelHousekeepingwith its unconventional cast of unconnected women provides a contemporary way to explore the parable's opening question. Both Williams and Robinson, in their respective thoughts about ‘housekeeping’ as mutuality, discover that privileging established answers, conventional families and coded traditions interrogates the question ‘who is my neighbor?’ Both the theologian and the novelist explore behaviors that open the boundaries of family and traditions so that the elusive/allusive answer to the parable's question is found in unexpected haunting places with unfamiliar transients and on an ancient public road with one who has no name and voice.
End notes: two unpublished presentations by Michael Fordham
Authors: Urban Elizabeth 
Published: September 2013

AbstractFollowing the publication in this journal of two of Fordham's unpublished papers selected by James Astor (2010, 55, 5), the editors have asked me to select a further two. I have chosen two clinical pieces, one clinical notes and the other notes that refine his previous thinking, which Fordham wrote at the end of his life. Both are examples of the way Fordham continued throughout his analytic work to turn to patients as his primary source of learning.Fordham presented the first piece, ‘A case study’, to Parkside Clinic in 1988. Its subject is his last child patient, a nine‐year‐old boy with behaviour problems that destroyed the analytic frame. The second is clearly for an SAP (Society of Analytical Psychology) audience and written probably around 1992–93. It is titled ‘Some comments on transference and countertransference’ and contains material from the patient who has become known through papers in this journal as ‘K’. The two pieces are presented together within a commentary rather than separately with footnotes, in order to provide some context for Fordham's thinking in his late years.