Quinoidization of regioregular oligo(THIENO[3,4-b]THIOPHENE)s

Caracterización de oligotiofenosUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

MOTIVASI BEROLAHRAGA ARUNG JERAM PENGUNJUNG DI SAUNG BAMBON DKI JAKARTA

*ABSTRAK* Tujuan penelitian ini adalah untuk mengetahui sejauh manakah motivasi intrinsik yang ada pada pengunjung untuk mencari dan mengikuti perkembangan arung jeram DKI Jakarta . Metode penelitian yang digunakan adalah survey dengan mengunakan angket. Jumlah orang dalam penelitian ini adalah sebanyak 26 orang. Data diperoleh dengan Teknik random sampling , selanjutnya diberikan angket yang berisikan soal sebanyak 30 butir pertanyaan kepada responden. Kemudian responden akan di berikan waktu yang tidak di Batasi untuk menjawab semua butir-butir pertanyaan yang disediakan didalam kertas soal. Berdasarkan dari hasil motivasi intrinsik pengunjung arung Jeram yang telah di dapat melalui angket yang di sebarkan kepada pengunjung arung jeram DKI Jakarta dengan jumlah sampel sebanyak 26 orang, bahwa memiliki kategori sedang sebanyak 6 orang dengan nilai persentase sebesar 23,08. Hal ini menunjukan bahwa kesenangan dalam berolahraga arung jeram di Sungai saung bambon dan keinginan mengedukasi yang timbul untuk berolahraga di Sungai saung bambon masuk dalam kategori Sedang. *ABSTRACT* The purpose of this research is to find out how far the intrinsic motivation is in visitors to seek and follow the developments in DKI Jakarta rafting. The research method used is a survey using a questionnaire. The number of people in this study were 26 people. The data was obtained using random sampling technique, then a questionnaire containing 30 questions was given to the respondents. Then the respondent will be given unlimited time to answer all the questions provided in the question paper. Based on the results of the intrinsic motivation of rafting visitors who have been obtained through a questionnaire distributed to DKI Jakarta rafting visitors with a total sample of 26 people, that has a moderate category of 6 people with a percentage value of 23.08. This shows that the pleasure in exercising white water rafting on the Saung Bamboo River and the educational desire that arises to exercise on the Saung Bamboo River are in the Medium category. Keywords: intrinsic motivation, visitors, raftin

VISUAL o VISIBLE THINKING: ES ESA LA CUESTION?

Para poder debatir durante el ICOT18 planteamos un dilema que NO tiene una respuesta única: el pensamiento visual ¿se expresa mediante elementos gráficos y textuales? o ¿es el propio pensamiento el que esta en proceso de construcción mientras garabateamos, dibujamos y escribimos? ¿Es una herramienta más que utiliza nuestra mente para recorrer los diferentes caminos por los que van adquiriendo sentido los conceptos y proposiciones mientras vamos dando forma a las ideas que nos “rondan en la cabeza? Durante el Taller Interactivo recorreremos los planteamientos de diferentes autores y sus propuestas, enriqueciendo los postulados iniciales con las aportaciones de los ponentes via audio-visual (streaming y Youtube

Three-Dimensional Spectral-Domain Optical Coherence Tomography Data Analysis for Glaucoma Detection

Purpose: To develop a new three-dimensional (3D) spectral-domain optical coherence tomography (SD-OCT) data analysis method using a machine learning technique based on variable-size super pixel segmentation that efficiently utilizes full 3D dataset to improve the discrimination between early glaucomatous and healthy eyes. Methods: 192 eyes of 96 subjects (44 healthy, 59 glaucoma suspect and 89 glaucomatous eyes) were scanned with SD-OCT. Each SD-OCT cube dataset was first converted into 2D feature map based on retinal nerve fiber layer (RNFL) segmentation and then divided into various number of super pixels. Unlike the conventional super pixel having a fixed number of points, this newly developed variable-size super pixel is defined as a cluster of homogeneous adjacent pixels with variable size, shape and number. Features of super pixel map were extracted and used as inputs to machine classifier (LogitBoost adaptive boosting) to automatically identify diseased eyes. For discriminating performance assessment, area under the curve (AUC) of the receiver operating characteristics of the machine classifier outputs were compared with the conventional circumpapillary RNFL (cpRNFL) thickness measurements. Results: The super pixel analysis showed statistically significantly higher AUC than the cpRNFL (0.855 vs. 0.707, respectively, p = 0.031, Jackknife test) when glaucoma suspects were discriminated from healthy, while no significant difference was found when confirmed glaucoma eyes were discriminated from healthy eyes. Conclusions: A novel 3D OCT analysis technique performed at least as well as the cpRNFL in glaucoma discrimination and even better at glaucoma suspect discrimination. This new method has the potential to improve early detection of glaucomatous damage. © 2013 Xu et al

On-line and real time cell counting and viability determination for animal cell process monitoring by in situ microscopy

International audienc

Aharonov-Bohm interferences from local deformations in graphene

One of the most interesting aspects of graphene is the tied relation between structural and electronic properties. The observation of ripples in the graphene samples both free standing and on a substrate has given rise to a very active investigation around the membrane-like properties of graphene and the origin of the ripples remains as one of the most interesting open problems in the system. The interplay of structural and electronic properties is successfully described by the modelling of curvature and elastic deformations by fictitious gauge fields that have become an ex- perimental reality after the suggestion that Landau levels can form associated to strain in graphene and the subsequent experimental confirmation. Here we propose a device to detect microstresses in graphene based on a scanning-tunneling-microscopy setup able to measure Aharonov-Bohm inter- ferences at the nanometer scale. The interferences to be observed in the local density of states are created by the fictitious magnetic field associated to elastic deformations of the sample.Comment: Some bugs fixe

Impact of Vitamin D Supplementation on Arterial Vasomotion, Stiffness and Endothelial Biomarkers in Chronic Kidney Disease Patients

Background: Cardiovascular events are frequent and vascular endothelial function is abnormal in patients with chronic kidney disease (CKD). We demonstrated endothelial dysfunction with vitamin D deficiency in CKD patients; however the impact of cholecalciferol supplementation on vascular stiffness and vasomotor function, endothelial and bone biomarkers in CKD patients with low 25-hydroxy vitamin D [25(OH)D] is unknown, which this study investigated. Methods: We assessed non-diabetic patients with CKD stage 3/4, age 17–80 years and serum 25(OH)D ,75 nmol/L. Brachial artery Flow Mediated Dilation (FMD), Pulse Wave Velocity (PWV), Augmentation Index (AI) and circulating blood biomarkers were evaluated at baseline and at 16 weeks. Oral 300,000 units cholecalciferol was administered at baseline and 8-weeks. Results: Clinical characteristics of 26 patients were: age 50614 (mean61SD) years, eGFR 41611 ml/min/1.73 m2, males 73%, dyslipidaemia 36%, smokers 23% and hypertensives 87%. At 16-week serum 25(OH)D and calcium increased (43616 to 84629 nmol/L, p,0.001 and 2.3760.09 to 2.4260.09 mmol/L; p = 0.004, respectively) and parathyroid hormone decreased (10.868.6 to 7.464.4; p = 0.001). FMD improved from 3.163.3% to 6.163.7%, p = 0.001. Endothelial biomarker concentrations decreased: E-Selectin from 566662123 to 525662058 pg/mL; p = 0.032, ICAM-1, 3.4560.01 to 3.1061.04 ng/mL; p = 0.038 and VCAM-1, 54633 to 42633 ng/mL; p = 0.006. eGFR, BP, PWV, AI, hsCRP, von Willebrand factor and Fibroblast Growth Factor-23, remained unchanged. Conclusion: This study demonstrates for the first time improvement of endothelial vasomotor and secretory functions with vitamin D in CKD patients without significant adverse effects on arterial stiffness, serum calcium or FGF-23. Trial Registration: ClinicalTrials.gov NCT0200571

Ripple Texturing of Suspended Graphene Atomic Membranes

Graphene is the nature's thinnest elastic membrane, with exceptional mechanical and electrical properties. We report the direct observation and creation of one-dimensional (1D) and 2D periodic ripples in suspended graphene sheets, using spontaneously and thermally induced longitudinal strains on patterned substrates, with control over their orientations and wavelengths. We also provide the first measurement of graphene's thermal expansion coefficient, which is anomalously large and negative, ~ -7x10^-6 K^-1 at 300K. Our work enables novel strain-based engineering of graphene devices.Comment: 15 pages, 4 figure

Microwave noise parameter measurements of a high temperature superconducting flux flow transistor

The noise parameters of a high-temperature superconducting (HTS) flux flow transistor made of TlBaCaCuO operating at 77 K and 3-5 GHz were experimentally determined. It is assumed that the dominant noise mechanism of the device, which is based on an array of weak links with a magnetic control line, is due to the statistical nature of flux nucleation and motion in the links. The noise parameters dictate the dependence of the noise figure on the source impedance, and are calculated by measuring source impedances. Sensitivity analysis is used to estimate the accuracy of the measurements. The measurements indicate a minimum noise figure of less than 1 dB at 3 GHzPeer ReviewedPostprint (published version

Intraoperative PaO2 is not related to the development of surgical site infections after major cardiac surgery

Producción CientíficaBackground: The perioperative use of high inspired oxygen fraction (FIO2) for preventing surgical site infections (SSIs) has demonstrated a reduction in their incidence in some types of surgery however there exist some discrepancies in this respect. The aim of this study was to analyze the relationship between PaO2 values and SSIs in cardiac patients. Methods: We designed a prospective study in which 1,024 patients undergoing cardiac surgery were analyzed. Results: SSIs were observed in 5.3% of patients. There was not significant difference in mortality at 30 days between patients with and without SSIs. In the uni and multivariate analysis no differences in function of the inspired oxygen fraction administrated were observed. Conclusions: We observed that the PaO2 in adult cardiac surgery patients was not related to SSI rate