236 research outputs found

    Tari Olang-olang dalam Ritual Pengobatan Suku Sakai di Kecamatan Minas, Kabupaten Siak

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    Dance - Olang Olang is a reflection of the identity of rural communities Sakai tribe contained in District Minas , Siak . Olang - Olang dance is a dance for the treatment of Sakai tribe . Sakai people still believe that the human disease caused by interference spirits. Treatment system to perform the ceremony in the treatment process are dance - Olang Olang . Olang - Olang dance forms in Sakai tribal life can be seen from the form of movement , musical accompaniment and property as well as clothing that can be seen from the form covers all aspects that can be captured by the five senses . Meaning contained in Olang - Olang dance in ritual treatment Sakai people in District Minas is a ritual significance , aesthetic meaning , the meaning of cultural representation and preservation of cultural significance . Dance - Olang Olang describe the spirit of Soli , which is the ancestral spirits Sakai tribe who during his lifetime was also a Bomo . Olang - Olang has meaning flying birds . Movement of Dance - Olang Olang describe symbolize communication between Bomo with Soli spirit in healing the sick

    Estetika Musik Kompang di Bengkalis, Riau

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    Kompang Melayu dipahami sebagai istilah penyebutan terhadap kelompok-kelompok Kompang di masyarakat Melayu. Keberadaan musik Kompang dapat ditemui pada kegiatan upacara Tepuk Tepung Tawar, upacara Berinai Curi, upacara Rarak Pengantin, upacara Turun Mandi, mengiringi Pencak Silat, mengantar kepergiaan dan menyambut kedatangan jama\u27ah haji, dan menyambutan tamu di pemerintahan. Kompang gendang bermuka dua menyerupai Rebana berdiameter 35-40 cm terbuat dari kayu Leban dengan membran dari kulit kambing betina dilengkapi sedak (peregang kulit) dimainkan dalam bentuk pola-pola pukulan rampak (lokal: maen tangan) dan pola- pola jalinan (lokal: naek-turun). Vokal berupa nyanyian dalam bahasa Arab yang bersumber dari teks-teks kitab Barzanji yang lazim disebut Adi. Adi adalah teks lagu berupa frasa kalimat tanya-jawab yang ditulis dengan huruf Hijaiyah. Permainan pola pukulan dan vokabuler vokal dipengaruhi oleh makhrijal huruf Makhraj yang berarti ketepatan ucapan. Kata Kunci: Estetika, Musik Kompang, Masyarakat Melayu, Bengkalis ABSTRACTMalay Kompang understood as the mention of the term Kompang groups in the Malay community. The existence Kompang music can be found on the ceremonial activities Flour Fresh Tap, Steal Berinai ceremony, ceremony rarak Bride, Down Bathing ceremony, accompanied Pencak Silat, kepergiaan usher and greet pilgrims and guests menyambutan in government. Kompang drum resembling a tambourine duplicity 35-40 cm in diameter made of wood with a membrane of skin Leban goat comes Sedak (leather stretcher) is played in the form of patterns blow rampak (local: maen hand) and braided patterns (local: naek -turun). Vocal form of singing in Arabic that originates from the texts of Barzanji commonly called Adi. Adi is the text of a song in the form of question and answer phrases sentences are written with letters Hijaiyah. Games and vokabuler vocal punch patterns are influenced by letters makhrijal makhraj which means the accuracy of the speech. Key words: Aesthetics, Music Kompang, Malay Society, BengkalisABSTRAKKompang Melayu dipahami sebagai istilah penyebutan terhadap kelompok-kelompok Kompang di masyarakat Melayu. Keberadaan musik Kompang dapat ditemui pada kegiatan upacara Tepuk Tepung Tawar, upacara Berinai Curi, upacara Rarak Pengantin, upacara Turun Mandi, mengiringi Pencak Silat, mengantar kepergiaan dan menyambut kedatangan jama\u27ah haji, dan menyambutan tamu di pemerintahan. Kompang gendang bermuka dua menyerupai Rebana berdiameter 35-40 cm terbuat dari kayu Leban dengan membran dari kulit kambing betina dilengkapi sedak (peregang kulit) dimainkan dalam bentuk pola-pola pukulan rampak (lokal: maen tangan) dan pola- pola jalinan (lokal: naek-turun). Vokal berupa nyanyian dalam bahasa Arab yang bersumber dari teks-teks kitab Barzanji yang lazim disebut Adi. Adi adalah teks lagu berupa frasa kalimat tanya-jawab yang ditulis dengan huruf Hijaiyah. Permainan pola pukulan dan vokabuler vokal dipengaruhi oleh makhrijal huruf Makhraj yang berarti ketepatan ucapan. Kata Kunci: Estetika, Musik Kompang, Masyarakat Melayu, Bengkalis ABSTRACTMalay Kompang understood as the mention of the term Kompang groups in the Malay community. The existence Kompang music can be found on the ceremonial activities Flour Fresh Tap, Steal Berinai ceremony, ceremony rarak Bride, Down Bathing ceremony, accompanied Pencak Silat, kepergiaan usher and greet pilgrims and guests menyambutan in government. Kompang drum resembling a tambourine duplicity 35-40 cm in diameter made of wood with a membrane of skin Leban goat comes Sedak (leather stretcher) is played in the form of patterns blow rampak (local: maen hand) and braided patterns (local: naek -turun). Vocal form of singing in Arabic that originates from the texts of Barzanji commonly called Adi. Adi is the text of a song in the form of question and answer phrases sentences are written with letters Hijaiyah. Games and vokabuler vocal punch patterns are influenced by letters makhrijal makhraj which means the accuracy of the speech

    A simplified charge projection scheme for long-range electrostatics in ab initio QM/MM calculations

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    In a previous work [Pan et al., Molecules 23, 2500 (2018)], a charge projection scheme was reported, where outer molecular mechanical (MM) charges [>10 Å from the quantum mechanical (QM) region] were projected onto the electrostatic potential (ESP) grid of the QM region to accurately and efficiently capture long-range electrostatics in ab initio QM/MM calculations. Here, a further simplification to the model is proposed, where the outer MM charges are projected onto inner MM atom positions (instead of ESP grid positions). This enables a representation of the long-range MM electrostatic potential via augmentary charges (AC) on inner MM atoms. Combined with the long-range electrostatic correction function from Cisneros et al. [J. Chem. Phys. 143, 044103 (2015)] to smoothly switch between inner and outer MM regions, this new QM/MM-AC electrostatic model yields accurate and continuous ab initio QM/MM electrostatic energies with a 10 Å cutoff between inner and outer MM regions. This model enables efficient QM/MM cluster calculations with a large number of MM atoms as well as QM/MM calculations with periodic boundary conditions

    Variational Kinetic Clustering of Complex Networks

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    Efficiently identifying the most important communities and key transition nodes in weighted and unweighted networks is a prevalent problem in a wide range of disciplines. Here we focus on the optimal clustering using variational kinetic parameters, linked to Markov processes defined on the underlying networks, namely the slowest relaxation time and the Kemeny constant. We derive novel relations in terms of mean first passage times for optimizing clustering via the Kemeny constant, and show that the optimal clustering boundaries have equal round-trip times to the clusters they separate.We also propose an efficient method that first projects the network nodes onto a 1D reaction coordinate and subsequently performs a variational boundary search using a parallel tempering algorithm, where the variational kinetic parameters act as an energy function to be extremized.We find that maximization of the Kemeny constant is effective in detecting communities, while the slowest relaxation time allows for detection of transition nodes.We demonstrate the validity of our method on several test systems, including synthetic networks generated from the stochastic block model and real world networks (Santa Fe Institute collaboration network, a network of co-purchased political books, and a street network of multiple cities in Luxembourg). Our approach is compared with existing clustering algorithms based on modularity and the Robust Perron Cluster Analysis and the identified transition nodes are compared with different notions of node centrality

    Nanoscale investigation of polymer cement concretes by small angle neutron scattering

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    An analysis of dense cements, such as polymer cement concrete, is made to produce original innovative components for different types of constructing materials. These materials present good functional properties (ageing resistance, crack formation resistance, hardness, and stability of mechanical modules) and can be used for various applications. In this paper, experimental tests on Portland cement with added γ-Al 2 O 3 and redispersible dry polymer performed using small angle neutron scattering are reported. The objective of the investigation was to assess the key parameters of the material (e.g., porosity, fractal dimensions, and size distribution) at the nanoscale level as well as to obtain useful structural information for expanding the possibility of applications. The results obtained can contribute to the optimisation of the consistency of the material, the design of operating conditions of elements of structures and facilities, and the design of the procedures that support ecological criteria and enhance quality and safety levels. © 2017 Walter de Gruyter GmbH, Berlin/Boston

    Altered gene expression profiles in the hippocampus and prefrontal cortex of type 2 diabetic rats

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    <p>Abstract</p> <p>Background</p> <p>There has been an increasing body of epidemiologic and biochemical evidence implying the role of cerebral insulin resistance in Alzheimer-type dementia. For a better understanding of the insulin effect on the central nervous system, we performed microarray-based global gene expression profiling in the hippocampus, striatum and prefrontal cortex of streptozotocin-induced and spontaneously diabetic Goto-Kakizaki rats as model animals for type 1 and type 2 diabetes, respectively.</p> <p>Results</p> <p>Following pathway analysis and validation of gene lists by real-time polymerase chain reaction, 30 genes from the hippocampus, such as the inhibitory neuropeptide galanin, synuclein gamma and uncoupling protein 2, and 22 genes from the prefrontal cortex, e.g. galanin receptor 2, protein kinase C gamma and epsilon, <it>ABCA1 </it>(ATP-Binding Cassette A1), <it>CD47 </it>(Cluster of Differentiation 47) and the <it>RET </it>(Rearranged During Transfection) protooncogene, were found to exhibit altered expression levels in type 2 diabetic model animals in comparison to non-diabetic control animals. These gene lists proved to be partly overlapping and encompassed genes related to neurotransmission, lipid metabolism, neuronal development, insulin secretion, oxidative damage and DNA repair. On the other hand, no significant alterations were found in the transcriptomes of the corpus striatum in the same animals. Changes in the cerebral gene expression profiles seemed to be specific for the type 2 diabetic model, as no such alterations were found in streptozotocin-treated animals.</p> <p>Conclusions</p> <p>According to our knowledge this is the first characterization of the whole-genome expression changes of specific brain regions in a diabetic model. Our findings shed light on the complex role of insulin signaling in fine-tuning brain functions, and provide further experimental evidence in support of the recently elaborated theory of type 3 diabetes.</p

    Plasma osteopontin concentrations in preeclampsia - is there an association with endothelial injury?

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    Background: It has been previously reported that plasma osteopontin (OPN) concentrations are increased in cardiovascular disorders. The goal of the present study was to determine plasma OPN concentrations in healthy pregnant women and preeclamptic patients, and to investigate their relationship to the clinical characteristics of the study subjects and to markers of inflammation [C-reactive protein (CRP)], endothelial activation [von Willebrand factor antigen (VWF: Ag)] or endothelial injury (fibronectin), oxidative stress [malondialdehyde (MDA)] and trophoblast debris (cell-free fetal DNA). Methods: Forty-four patients with preeclampsia and 44 healthy pregnant women matched for age and gestational age were involved in this case-control study. Plasma OPN concentrations were measured with ELISA. Serum CRP concentrations were determined with an autoanalyzer using the manufacturer's reagents. Plasma VWF: Ag was quantified by ELISA, while plasma fibronectin concentrations were measured by nephelometry. Plasma MDA concentrations were estimated by the thiobarbituric acid-based colorimetric assay. The amount of cell-free fetal DNA in maternal plasma was determined by quantitative real-time PCR analysis of the sex-determining region Y (SRY) gene. For statistical analyses, non-parametric methods were applied. Results: Serum levels of CRP, as well as plasma concentrations of VWF: Ag, fibronectin, MDA and cell-free fetal DNA were significantly higher in preeclamptic patients than in healthy pregnant women. There was no significant difference in plasma OPN concentrations between controls and the preeclamptic group. However, preeclamptic patients with plasma fibronectin concentrations in the upper quartile had significantly higher plasma OPN concentrations than those below the 75th percentile, as well as healthy pregnant women [median (interquartile range): 9.38 (8.10-11.99) vs. 7.54 (6.31-9.40) and 7.40 (6.51-8.80) ng/mL, respectively, p < 0.05 for both]. Furthermore, in preeclamptic patients, plasma OPN concentrations showed a significant positive linear association with plasma fibronectin (Spearman R = 0.38, standardized regression coefficient (beta) = 0.41, p < 0.05 for both). Conclusions: Plasma OPN concentrations are increased in preeclamptic patients with extensive endothelial injury. However, further studies are warranted to explore the relationship between OPN and endothelial damage. Clin Chem Lab Med 2010;48: 181-7

    The ultrastructure and flexibility of thylakoid membranes in leaves and isolated chloroplasts as revealed by small-angle neutron scattering

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    We studied the periodicity of the multilamellar membrane system of granal chloroplasts in different isolated plant thylakoid membranes, using different suspension media, as well as on different detached leaves and isolated protoplasts—using small-angle neutron scattering. Freshly isolated thylakoid membranes suspended in isotonic or hypertonic media, containing sorbitol supplemented with cations, displayed Bragg peaks typically between 0.019 and 0.023 Å− 1, corresponding to spatially and statistically averaged repeat distance values of about 275–330 Å. Similar data obtained earlier led us in previous work to propose an origin from the periodicity of stroma thylakoid membranes. However, detached leaves, of eleven different species, infiltrated with or soaked in D2O in dim laboratory light or transpired with D2O prior to measurements, exhibited considerably smaller repeat distances, typically between 210 and 230 Å, ruling out a stromal membrane origin. Similar values were obtained on isolated tobacco and spinach protoplasts. When NaCl was used as osmoticum, the Bragg peaks of isolated thylakoid membranes almost coincided with those in the same batch of leaves and the repeat distances were very close to the electron microscopically determined values in the grana. Although neutron scattering and electron microscopy yield somewhat different values, which is not fully understood, we can conclude that small-angle neutron scattering is a suitable technique to study the periodic organization of granal thylakoid membranes in intact leaves under physiological conditions and with a time resolution of minutes or shorter. We also show here, for the first time on leaves, that the periodicity of thylakoid membranes in situ responds dynamically to moderately strong illumination. This article is part of a Special Issue entitled: Photosynthesis research for sustainability: Keys to produce clean energy

    Intimate Pride: a Tri-Nation Study on Associations between Positive Minority Identity Aspects and Relationship Quality in Sexual Minorities from German-Speaking Countries

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    Investigations into the intimate relationships of sexual minorities are proliferating, but often adopt a deficit-oriented and US-centered perspective. In this tri-nation online study with sexual minority participants from Austria, Germany, and Switzerland (N = 571), we (i) assessed the construct validity of the German version of a well-known measure for positive minority identity aspects (the Lesbian, Gay, Bisexual Positive Identity Measure; LGB-PIM), and (ii) explored associations between these aspects (self-awareness, authenticity, community, capacity for intimacy, and social justice) and self-reported relationship quality. Model fit of the German version of the LGB-PIM was deemed acceptable. Higher levels of positive minority identity aspects showed small to moderate associations with higher levels of relationship quality in bivariate analyses, but only capacity for intimacy was linked to relationship quality in higher-order models (controlling for country, age, sexual orientation, gender identity, relationship length, and psychological distress). Results remained robust in several sensitivity analyses. Our results highlight the differential role of positive identity aspects for relationship functioning, with capacity for intimacy as a fruitful leverage point for therapeutic work

    Propellantless de orbiting of space debris by bare electrodynamic tethers

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    A 3-year Project started on November 1 2010, financed by the European Commision within the FP-7 Space Program, and aimed at developing an efficient de-orbit system that could be carried on board by future spacecraft launched into LEO, will be presented. The operational system will deploy a thin uninsulated tape-tether to collect electrons as a giant Langmuir probe, using no propellant/no power supply, and generating power on board. This project will involve free-fall tests, and laboratory hypervelocity-impact and tether-current tests, and design/Manufacturing of subsystems: interface elements, electric control and driving module, electron-ejecting plasma contactor, tether-deployment mechanism/end-mass, and tape samples. Preliminary results to be presented involve: i) devising criteria for sizing the three disparate tape dimensions, affecting mass, resistance, current-collection, magnetic self-field, and survivability against debris itself; ii) assessing the dynamical relevance of tether parameters in implementing control laws to limit oscillations in /off the orbital plane, where passive stability may be marginal; iii) deriving a law for bare-tape current from numerical simulations and chamber tests, taking into account ambient magnetic field, ion ram motion, and adiabatic electron trapping; iv) determining requirements on a year-dormant hollow cathode under long times/broad emission-range operation, and trading-off against use of electron thermal emission; v) determining requirements on magnetic components and power semiconductors for a control module that faces high voltage/power operation under mass/volume limitations; vi) assessing strategies to passively deploy a wide conductive tape that needs no retrieval, while avoiding jamming and ending at minimum libration; vii) evaluating the tape structure as regards conductive and dielectric materials, both lengthwise and in its cross-section, in particular to prevent arcing in triple-point junctions
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