Multinuclear MAS NMR studies on coked zeolites H-ZSM-5

International Nuclear Information System (INIS)

Ernst, H.; Freude, D.; Hunger, M.; Pfeifer, H.

1991-01-01

During the cracking process carbonaceous materials are deposited on the outer or inner surface of the catalyst. These deposits are in many cases the main cause of catalyst deactivation. Magic angle spinning (MAS) NMR investigations and catalytic n-hexane cracking were carried out on H-ZSM-5 zeolites after a mild hydrothermal de-alumination. By 13 C CP MAS NMR it could be shown that the enhanced catalytic activity does not enhance the coke formation and that the chemical nature of these deposits is essentially aromatic. From 1 H MAS NMR studies performed on shallow-bed activated sealed samples and 27 Al and 29 Si MAS NMR on rehydrated samples it follows that for high coke concentrations the catalyst deactivation is caused mainly by blocking of Broensted acid sites. (author). 27 refs.; 3 figs.; 2 tabs

Autolīzinga kompānijas AS "mogo" reklāmas kampaņu izstrāde, izmantojot Facebook reklāmas rīkus

OpenAIRE

Ābeltiņš, Elvis

2017-01-01

Diplomdarba tēma ir “Autolīzinga kompānijas AS “mogo” reklāmas kampaņu izstrāde, izmantojot Facebook reklāmas rīkus”. Vadošais sociālais tīkls Facebook nodrošina plašas reklāmas izvietošanas iespējas un tā auditorijas apjoms ir sasniedzis tradicionālajiem medijiem līdzvērtīgu izmēru. Darba analītiskajā daļā tiek kategorizētas digitālā mārketinga metodes, kā arī apkopota sociālo tīklu lietotāju statistika Latvijā un pasaulē. Projekta daļā autors salīdzina un analizē Facebook reklāmas izvietoša...

Voltage stability analysis considering the load dynamic characteristics and the voltage control devices; Analisis de estabilidad de voltaje considerando las caracteristicas dinamicas de la carga y dispositivos de control de voltaje

Energy Technology Data Exchange (ETDEWEB)

Hernandez Alvarez, Enrique

2001-09-15

improvement of the voltage stability. Finally, the application of the proposed methods of study to the analysis of voltage stability in an electrical network derived from the Mexican Peninsular system is presented. The influence of voltage control devices in the stability phenomenon is discussed and a comparison with the results obtained by means of other analysis techniques are presented, specifically, the study of the Q-V curves and the modal analysis of the power flow equations. [Spanish] El trabajo de investigacion que se presenta en esta tesis se centra en el analisis de la estabilidad de voltaje de mediano plazo considerando el efecto de las caracteristicas de la carga y su interaccion con los modelos de dispositivos de control de voltaje en la red de transmision. Mas concretamente, se define y estudia un tipo de modelo de carga con caracteristicas deseables para el estudio de la estabilidad de voltaje; los modelos genericos de carga derivados de pruebas de campo o de la aplicacion de tecnicas de identificacion y se analiza la influencia de la aplicacion de dispositivos de control para mejorar los margenes de estabilidad del sistema. Se estudian, asimismo, alternativas al modelado de sistemas de potencia para el estudio de la estabilidad de voltaje en sistemas complejos. Se presenta, en primer lugar, un analisis fundamental de las caracteristicas de estabilidad de voltaje en un sistema simplificado de potencia y se introduce el metodo de analisis adoptado. Se muestra que el fenomeno de inestabilidad se manifiesta como una bifurcacion tipo singular inducida del modo critico de voltaje cuando se opera el sistema bajo condiciones de estres. A continuacion, se analiza la contribucion de la accion de dispositivos de control al margen de estabilidad y se deducen criterios de analisis de estabilidad basados en el estudio de dicho modo. Se propone, a continuacion, un modelo lineal del sistema de potencia con caracteristicas deseables para el estudio de la estabilidad de voltaje

KINERJA USAHA TANAMAN HIAS POTONG PT PESONA DAUN MAS ASRI

Directory of Open Access Journals (Sweden)

Muhamad Arief Bangun Sanjaya

2017-01-01

Full Text Available Pesona Daun Mas Asri is a company in cut flowers  and leaves cultivation. The  achievement is shown by the performance of the company. The overall company’s performance contributes in developing the company’s vision. Balanced score card is a management tool used to observe and maintain the stability between financial indicators (financial perspective and non financial indicators (customer, business internal process, growth and learning.  The objective of the journal is to plan the performance of the company using balanced scorecard approach, analyze and calculate the vision, mission and strategy implemented by Pesona Daun Mas in it business activity..  The result for every strategic target shows that the performance of Pesona Daun Mas is excellent with the achieved score of 78,04%.  However the target for the selling growth level and marketing activities are classified as average which means that it still needs to be developed.   Keywords:  balanced scorecard, performance evaluation, KPI performance index, ornamental plants cutAbstrakPesona Daun Mas Asri merupakan perusahaan yang bergerak dalam bidang budi daya bunga potong dan daun potong. Pencapaian dalam menjalankan sebuah perusahaan dapat dilihat dari kinerja perusahaan tersebut.Kinerja perusahaan Pesona Daun Mas Asri secara keseluruhan dapat berkontribusi untuk mengembangkan perusahaan dalam mencapai visi. Balanced scorecard adalah salah satu alat manajemen yang dapat melihat dan menjaga keseimbangan antara indikator keuangan (perspektif keuangan dan indikator non-keuangan (pelanggan, proses bisnisinternal, pertumbuhan dan pembelajaran. Tujuan dari jurnal ini adalah untuk merancang pengukuran kinerja perusahaan dengan pendekatan Balanced scorecard. Penelitian ini juga bertujuan menganalisis dan mengukur pelaksanaan visi, misi dan strategi yang dijalankan oleh Pesona Daun Mas Asri dalam kegiatan bisnisnya. Selain itu, memberikan saran dan rekomendasi, serta merumuskan implikasi

MAS2-8 radar and digital control unit

Science.gov (United States)

Oberg, J. M.; Ulaby, F. T.

1974-01-01

The design of the MAS 2-8 (2 to 8 GHz microwave-active spectrometer), a ground-based sensor system, is presented. A major modification in 1974 to the MAS 2-8, that of a control subsystem to automate the data-taking operation, is the prime focus. The digital control unit automatically changes all system parameters except FM rate and records the return signal on paper tape. The overall system operation and a detailed discussion of the design and operation of the digital control unit are presented.

E/Z MAS: An easy-to-use computerized materials control and accountability system

International Nuclear Information System (INIS)

Anderson, L.K.; Boor, M.G.; Hurford, J.M.; Landry, R.P.; Martinez, B.J.; Solem, A.M.; Whiteson, R.; Zardecki, A.

1998-01-01

Nuclear facilities that handle and process nuclear materials are required to track their nuclear holdings and to keep adequate records that manage and control the inventory of those holdings. The complexity of a system that does this job is directly proportional to the complexity of the facility's operations. This paper describes an approach to computerized materials protection, control, and accountability (MPC and A) that was introduced by Los Alamos National Laboratory (LANL) in the fall of 1997. This new system, E/Z MAS, is the latest addition to the LANL suite of computerized MPC and A tools, which also includes the CoreMAS system. E/Z MAS was initially designed to address the needs of those facilities that have small to modest MPC and A needs but has been expanded to provide full functionality for any facility. The system name, E/Z MAS, reflects the system's easy-to-use characteristics, which include ease of installation and ease of software maintenance. Both CoreMAS and E/Z MAS have been provided to facilities in the Former Soviet Union to assist them in implementing a computerized MPC and A system that meets their needs. In this paper the authors will address the functionality of CoreMAS and E/Z MAS, and an argument in favor of intranet-based material control and accountability will be advanced

Un episodio relevante: la burbuja especulativa y la crisis inmobiliaria en perspectiva

Directory of Open Access Journals (Sweden)

José Manuel Naredo Pérez

2015-06-01

Full Text Available A juicio del autor, el episodio más relevante y condicionante para el territorio y el urbanismo de finales del siglo pasado y principios del actual, ha sido la enorme burbuja especulativa y la posterior crisis inmobiliaria que ha vivido el país. El pinchazo de esta burbuja ha forzado la crisis económica y también la del modelo inmobiliario que la posibilitó, invitando a reflexionar sobre él.

Audición espacial en ambientes reverberantes: aspectos teóricos relevantes

OpenAIRE

Claudia Arias; Oscar A. Ramos

2003-01-01

En ambientes reverberantes el sonido se propaga en múltiples direcciones sufriendo cambios físicos de importancia. El sistema auditivo debe se capaz de resolver la competencia perceptual que se produce entre el sonido original y sus reflexiones. En este artículo se presentan aspectos teóricos relevantes de la audición espacial con especial tratamiento del efecto precedente. Se trata de una estrategia inconciente que el individuo utiliza para enfrentar la información sonora conf...

Habilidades sociales relevantes: percepciones de múltiples actores educativos

Directory of Open Access Journals (Sweden)

Carmen Paz Tapia-Gutiérrez

2017-01-01

Full Text Available Las habilidades sociales son fundamentales para el desempeño docente, por tanto, su incorporación en la formación inicial también lo es. El objetivo de esta investigación ha sido explorar el significado del constructo “habilidades sociales”. Se utilizó un diseño descriptivo y se conformó una muestra por conveniencia de 237 sujetos (profesores, académicos y estudiantes universitarios de la región chilena de La Araucanía. A cada grupo se le aplicó la técnica de redes semánticas naturales. Los resultados muestran que las habilidades empáticas-solidarias y habilidades de comunicación son las más relevantes para todos los participantes.

Residue specific hydration of primary cell wall potato pectin identified by solid-state 13C single-pulse MAS and CP/MAS NMR spectroscopy

DEFF Research Database (Denmark)

Larsen, Flemming Hofmann; Chrestensen, Inge Byg; Damager, Iben

2011-01-01

Hydration of rhamnogalacturonan-I (RG-I) derived from potato cell wall was analyzed by 13C single-pulse (SP) magic-angle-spinning (MAS) and 13C cross-polarization (CP) MAS nuclear magnetic resonance (NMR) and supported by 2H SP/MAS NMR experiments. The study shows that the arabinan side chains...... hydrate more readily than the galactan side chains and suggests that the overall hydration properties can be controlled by modifying the ratio of these side chains. Enzymatic modification of native (NA) RG-I provided samples with reduced content of arabinan (sample DA), galactan (sample DG), or both side...... chains (sample DB). Results of these samples suggested that hydration properties were determined by the length and character of the side chains. NA and DA exhibited similar hydration characteristics, whereas DG and DB were difficult to hydrate because of the less hydrophilic properties of the rhamnose...

Quartz Crystal Temperature Sensor for MAS NMR

Science.gov (United States)

Simon, Gerald

1997-10-01

Quartz crystal temperature sensors (QCTS) were tested for the first time as wireless thermometers in NMR MAS rotors utilizing the NMR RF technique itself for exiting and receiving electro-mechanical quartz resonances. This new tool in MAS NMR has a high sensitivity, linearity, and precision. When compared to the frequently used calibration of the variable temperature in the NMR system by a solid state NMR chemical shift thermometer (CST), such as lead nitrate, QCTS shows a number of advantages. It is an inert thermometer in close contact with solid samples operating parallel to the NMR experiment. QCTS can be manufactured for any frequency to be near a NMR frequency of interest (typically 1 to 2 MHz below or above). Due to the strong response of the crystal, signal detection is possible without changing the tuning of the MAS probe. The NMR signal is not influenced due to the relative sharp crystal resonance, restricted excitation by finite pulses, high probeQvalues, and commonly used audio filters. The quadratic dependence of the temperature increase on spinning speed is the same for the QCTS and for the CST lead nitrate and is discussed in terms of frictional heat in accordance with the literature about lead nitrate and with the results of a simple rotor speed jump experiment with differently radial located lead nitrate in the rotor.

A General Protocol for Temperature Calibration of MAS NMR Probes at Arbitrary Spinning Speeds

Science.gov (United States)

Guan, Xudong; Stark, Ruth E.

2010-01-01

A protocol using 207Pb NMR of solid lead nitrate was developed to determine the temperature of magic-angle spinning (MAS) NMR probes over a range of nominal set temperatures and spinning speeds. Using BioMAS and fastMAS probes with typical sample spinning rates of 8 and 35 kHz, respectively, empirical equations were devised to predict the respective sample temperatures. These procedures provide a straightforward recipe for temperature calibration of any MAS probe. PMID:21036557

Angiotensin-(1-7)/Mas axis integrity is required for the expression of object recognition memory.

Science.gov (United States)

Lazaroni, Thiago L N; Raslan, Ana Cláudia S; Fontes, Walkiria R P; de Oliveira, Marilene L; Bader, Michael; Alenina, Natalia; Moraes, Márcio F D; Dos Santos, Robson A; Pereira, Grace S

2012-01-01

It has been shown that the brain has its own intrinsic renin-angiotensin system (RAS) and angiotensin-(1-7) (Ang-(1-7)) is particularly interesting, because it appears to counterbalance most of the Ang II effects. Ang-(1-7) exerts its biological function through activation of the G-protein-coupled receptor Mas. Interestingly, hippocampus is one of the regions with higher expression of Mas. However, the role of Ang-(1-7)/Mas axis in hippocampus-dependent memories is still poorly understood. Here we demonstrated that Mas ablation, as well as the blockade of Mas in the CA1-hippocampus, impaired object recognition memory (ORM). We also demonstrated that the blockade of Ang II receptors AT1, but not AT2, recovers ORM impairment of Mas-deficient mice. Considering that high concentrations of Ang-(1-7) may activate AT1 receptors, nonspecifically, we evaluate the levels of Ang-(1-7) and its main precursors Ang I and Ang II in the hippocampus of Mas-deficient mice. The Ang I and Ang II levels are unaltered in the whole hipocampus of MasKo. However, Ang-(1-7) concentration is increased in the whole hippocampus of MasKo mice, as well as in the CA1 area. Taken together, our findings suggest that the functionality of the Ang-(1-7)/Mas axis is essential for normal ORM processing. Copyright © 2011 Elsevier Inc. All rights reserved.

Evidence for Heterodimerization and Functional Interaction of the Angiotensin Type 2 Receptor and the Receptor MAS.

Science.gov (United States)

Leonhardt, Julia; Villela, Daniel C; Teichmann, Anke; Münter, Lisa-Marie; Mayer, Magnus C; Mardahl, Maibritt; Kirsch, Sebastian; Namsolleck, Pawel; Lucht, Kristin; Benz, Verena; Alenina, Natalia; Daniell, Nicholas; Horiuchi, Masatsugu; Iwai, Masaru; Multhaup, Gerhard; Schülein, Ralf; Bader, Michael; Santos, Robson A; Unger, Thomas; Steckelings, Ulrike Muscha

2017-06-01

The angiotensin type 2 receptor (AT2R) and the receptor MAS are receptors of the protective arm of the renin-angiotensin system. They mediate strikingly similar actions. Moreover, in various studies, AT2R antagonists blocked the effects of MAS agonists and vice versa. Such cross-inhibition may indicate heterodimerization of these receptors. Therefore, this study investigated the molecular and functional interplay between MAS and the AT2R. Molecular interactions were assessed by fluorescence resonance energy transfer and by cross correlation spectroscopy in human embryonic kidney-293 cells transfected with vectors encoding fluorophore-tagged MAS or AT2R. Functional interaction of AT2R and MAS was studied in astrocytes with CX3C chemokine receptor-1 messenger RNA expression as readout. Coexpression of fluorophore-tagged AT2R and MAS resulted in a fluorescence resonance energy transfer efficiency of 10.8 ± 0.8%, indicating that AT2R and MAS are capable to form heterodimers. Heterodimerization was verified by competition experiments using untagged AT2R and MAS. Specificity of dimerization of AT2R and MAS was supported by lack of dimerization with the transient receptor potential cation channel, subfamily C-member 6. Dimerization of the AT2R was abolished when it was mutated at cysteine residue 35. AT2R and MAS stimulation with the respective agonists, Compound 21 or angiotensin-(1-7), significantly induced CX3C chemokine receptor-1 messenger RNA expression. Effects of each agonist were blocked by an AT2R antagonist (PD123319) and also by a MAS antagonist (A-779). Knockout of a single of these receptors made astrocytes unresponsive for both agonists. Our results suggest that MAS and the AT2R form heterodimers and that-at least in astrocytes-both receptors functionally depend on each other. © 2017 American Heart Association, Inc.

Neuroprotective Mechanisms of the ACE2-Angiotensin-(1-7)-Mas Axis in Stroke

DEFF Research Database (Denmark)

Bennion, Douglas M; Haltigan, Emily; Regenhardt, Robert W

2015-01-01

The discovery of beneficial neuroprotective effects of the angiotensin converting enzyme 2-angiotensin-(1-7)-Mas axis [ACE2-Ang-(1-7)-Mas] in ischemic and hemorrhagic stroke has spurred interest in a more complete characterization of its mechanisms of action. Here, we summarize findings that desc......The discovery of beneficial neuroprotective effects of the angiotensin converting enzyme 2-angiotensin-(1-7)-Mas axis [ACE2-Ang-(1-7)-Mas] in ischemic and hemorrhagic stroke has spurred interest in a more complete characterization of its mechanisms of action. Here, we summarize findings...... that describe the protective role of the ACE2-Ang-(1-7)-Mas axis in stroke, along with a focused discussion on the potential mechanisms of neuroprotective effects of Ang-(1-7) in stroke. The latter incorporates evidence describing the actions of Ang-(1-7) to counter the deleterious effects of angiotensin II...... complete understanding of the mechanisms of action of Ang-(1-7) to elicit neuroprotection will serve as an essential step toward research into potential targeted therapeutics in the clinical setting....

The evolution of the MasAgro hubs

NARCIS (Netherlands)

Camacho-Villa, Tania Carolina; Almekinders, Conny; Hellin, Jon; Martinez-Cruz, Tania Eulalia; Rendon-Medel, Roberto; Guevara-Hernández, Francisco; Beuchelt, Tina D.; Govaerts, Bram

2016-01-01

Purpose: Little is known about effective ways to operationalize agricultural innovation processes. We use the MasAgro program in Mexico (which aims to increase maize and wheat productivity, profitability and sustainability), and the experiences of middle level ‘hub managers’, to understand how

Low dose multi-detector CT of the chest (iLEAD Study): Visual ranking of different simulated mAs levels

International Nuclear Information System (INIS)

Ley-Zaporozhan, Julia; Ley, Sebastian; Krummenauer, Frank; Ohno, Yoshiharu; Hatabu, Hiroto; Kauczor, Hans-Ulrich

2010-01-01

Purpose: Detailed evaluation of the lung parenchyma might be impaired by use of low dose CT as image noise increases and subsequently image quality decreases. The aim of our study was to determine the accuracy of visual perception of differences in image quality and noise at low dose chest CT. Materials and methods: Forty-four patients suffering from emphysema underwent CT (Aquilion-16, 120 kV, 150 mAs, 1 mm-collimation). Original raw data were used for simulation of 10 different mAs settings from 10 mAs to 100 mAs in 10 mAs increments. Three representative hard copy images (carina, 4 cm above, 5 cm below) were printed for evaluation of lung parenchyma (high-resolution kernel, lung window) and mediastinum (soft-kernel, soft tissue window). Ranking of expected low mAs level was performed for lung and soft tissue separately based on visual perception by three-blinded chest radiologist independently. Results were compared to the real simulated mAs. Results: The accuracy for correct ranking of the original 150 mAs scan was 89% for lung and 86% for soft tissue while it was 99% for the simulated 10 mAs for both windows. In comparison to the lowest mAs a significant error increase was found for the lung at 60-100 mAs (with error increase of 30-47%) for reader-I; 60-100 mAs for (33-64%) for reader-II and 70-100 mAs (38-57%) for reader-III. For the soft tissue: 60-150 mAs (with error increase of 28-63%) for reader-I; 50-100 mAs (35-56%) for reader-II and 50-90 mAs (35-40%) for reader-III. Conclusion: Simulated dose levels below 60 mAs (=42 mAs eff ) were clearly differentiated from higher dose levels by all readers. Therefore, imaging doses could be lowered down to 60 mAs without a diagnostically relevant increase in noise impairing image quality.

SecMAS: Security Enhanced Monitoring and Analysis Systems for Wireless Sensor Networks

Directory of Open Access Journals (Sweden)

Ding Chao

2016-01-01

Full Text Available The monitoring, control, and security guarantee for the communication in the wireless sensor networks (WSNs are currently treated as three independent issues and addressed separately through specialized tools. However, most cases of WSNs applications requires the network administrator change the network configuration in a very short time to response to the change of observed phenomenon with security guarantee. To meet this requirement, we propose a security enhanced monitoring and control platform named SecMAS for WSNs, which provides the real-time visualization about network states and online reconfiguration of the network properties and behaviours in a resource-efficient way. Besides, basic cryptographic primitives and part of the anomaly detection functionalities are implemented in SecMAS to enabling the secure communication in WSNs. Furthermore, we conduct experiments to evaluate the performance of SecMAS in terms of the latency, throughput, communication overhead, and the security capacity. The experimental results demonstrate that the SecMAS system achieves stable, efficient and secure data collection with lightweight quick-response network control.

HUBUNGAN ANTARA PERTUMBUHAN DENGAN KEBERADAAN GEN TAHAN PENYAKIT MAJOR HISTOCOMPATIBILITY COMPLEX (MHC PADA IKAN MAS (Cyprinus carpio

Directory of Open Access Journals (Sweden)

Erma Primanita Hayuningtyas

2016-04-01

Full Text Available Wabah penyakit koi herpes virus (KHV di Indonesia yang terjadi sejak tahun 2002 merupakan salah satu faktor yang memicu kemerosotan produksi ikan mas budidaya. Pembentukan strain unggul ikan mas tahan KHV dapat menjadi solusi bagi permasalahan tersebut. Pemilihan genotip ikan mas tahan KHV dengan marka molekuler gen major histocompatibility complex class II (MHC-II, khususnya pada alel Cyca DAB 1*05 akan membantu dalam kegiatan seleksi. Penelitian ini bertujuan untuk mengetahui keberadaan gen MHC-II pada populasi dasar G0 ikan mas strain Rajadanu dan hubungannya dengan pertumbuhan (bobot. Metode deteksi keberadaan gen MHC-II pada dua kelompok ikan dengan ukuran berbeda dilakukan dengan teknik PCR. Hubungan antara pertumbuhan ikan mas dengan persentase kemunculan gen MHC-II dianalisis dengan menggunakan program SPSS (Statistical Package for the Social Sciences, sehingga diperoleh korelasi di antara keduanya. Hasil penelitian menunjukkan bahwa hubungan antara pertumbuhan dengan persentase keberadaan gen MHC-II berkorelasi negatif dengan nilai R = -0,742. Hal ini mengindikasikan bahwa semakin cepat pertumbuhan populasi ikan mas maka semakin sedikit persentase individu yang mempunyai gen MHC-II pada setiap populasi ikan mas. Sehingga populasi ikan mas yang pertumbuhannya lambat memiliki tingkat persentase positif MHC-II lebih tinggi (85,71%-100% dibandingkan populasi ikan mas yang pertumbuhannya cepat (42,86%-85,71%.

Algoritmo para generar formulas de características geométricas de las secciones planas, su implementación en DERIVE // Algorithm for the calculation of the geometric characteristics of the plane sections defined for polygonal, their implementation in DERI

Directory of Open Access Journals (Sweden)

Rolando Rivero-Galán

2010-01-01

Full Text Available ResumenEn la esfera del diseno de estructuras y de elementos de maquinas, se presenta con relativafrecuencia el calculo de determinadas caracteristicas o propiedades geometricas de seccionesplanas, como son entre otras: el area de una seccion transversal, el centro de gravedad, unmomento de inercia o mas general la determinacion de alguna caracteristica geometrica definidapor una integral doble extendida en la region del plano que ocupa la seccion, pieza o elemento.El presente trabajo tiene como objetivo la confeccion de un programa para computadora,utilizando el asistente matematico DERIVE, para la determinacion de las caracteristicas geometricasde secciones planas cuyo contorno este constituido por segmentos de rectas.Palabras claves: Algoritmo, seccion plana, DERIVE, momentos, centro de gravedad.______________________________________________________________AbstractIn the sphere of the design of structures, is relative frequency the calculation of certaincharacteristic or geometric properties of plane sections, like: the area of a traverse section, thecenter of gravity, a moment of inertia or more general the determination of some geometriccharacteristic defined by a double integral extended in the region of the plane that occupies thesection, piece or element.The present work has as objective the making of a program for computer, using the mathematicalassistant DERIVE, for the determination of the geometric characteristics of plane sections whosecontour this constituted by segments of right.Key words: Algorithm, plane section, DERIVE, moments, center of gravity

MAS Integration and Controllership Effectiveness: Evidence of a Preparer-User Perception Gap

OpenAIRE

Weißenberger, Barbara E.; Angelkort, Hendrik; Holthoff, Gero

2012-01-01

Recent evidence suggests that managers establish a positive link between management accounting system (MAS) integration and controllership effectiveness, which is fully mediated by the perceived consistency of financial language. Our paper extends this research by analyzing whether controllers have similar perceptions on MAS design. Testing a series of multi-group structural equation models, we find evidence for a preparer-user perception gap with respect to the mediating impact of a consiste...

Improved background suppression in 1H MAS NMR using composite pulses

Science.gov (United States)

Odedra, Smita; Wimperis, Stephen

2012-08-01

A well known feature of 1H MAS NMR spectroscopy, particularly of solids where the concentration of 1H nuclei is low, is the presence in the spectrum of a significant broad "background" signal arising from 1H nuclei that are outside the MAS rotor and radiofrequency coil, probably located on the surfaces of the static components of the probehead. A popular method of suppressing this unwanted signal is the "depth pulse" method, consisting of a 90° pulse followed by one or two 180° pulses that are phase cycled according to the "Exorcycle" scheme, which removes signal associated with imperfect 180° pulses. Consequently, only spins in the centre of the radiofrequency coil contribute to the 1H MAS spectrum, while those experiencing a low B1 field outside the coil are suppressed. Although very effective at removing background signal from the spectrum, one drawback with this approach is that significant loss of the desired signal from the sample also occurs. Here we investigate the 1H background suppression problem and, in particular, the use of novel antisymmetric passband composite pulses to replace the simple pulses in a depth pulse experiment. We show that it is possible to improve the intensity of the 1H signals of interest while still maintaining effective background suppression. We expect that these results will be relevant to 1H MAS NMR studies of, for example, nominally perdeuterated biological samples or nominally anhydrous inorganic materials.

Recommendations for the use of high efficiency motors; Recomendaciones para la utilizacion de motores de alta eficiencia

Energy Technology Data Exchange (ETDEWEB)

Buitron Sanchez, Horacio [Comision Federal de Electricidad, Mexico, D. F. (Mexico)

1994-12-31

In this paper the most important characteristics of the high efficiency motors are examined and the use of these motors as an alternative for the saving and efficient use of the electrical energy is proposed. The operating cost is analyzed in relation with similar standard motors and several suggestions that can help to justify its application are given. [Espanol] En este trabajo se examinan las caracteristicas relevantes de los motores de alta eficiencia y se plantea su utilizacion como alternativa para el ahorro y uso eficiente de la energia electrica. Se analiza su costo de operacion, en relacion con motores estandar similares y se dan varias sugerencias que pueden ayudar a justificar su aplicacion.

Recommendations for the use of high efficiency motors; Recomendaciones para la utilizacion de motores de alta eficiencia

Energy Technology Data Exchange (ETDEWEB)

Buitron Sanchez, Horacio [Comision Federal de Electricidad, Mexico, D. F. (Mexico)

1993-12-31

In this paper the most important characteristics of the high efficiency motors are examined and the use of these motors as an alternative for the saving and efficient use of the electrical energy is proposed. The operating cost is analyzed in relation with similar standard motors and several suggestions that can help to justify its application are given. [Espanol] En este trabajo se examinan las caracteristicas relevantes de los motores de alta eficiencia y se plantea su utilizacion como alternativa para el ahorro y uso eficiente de la energia electrica. Se analiza su costo de operacion, en relacion con motores estandar similares y se dan varias sugerencias que pueden ayudar a justificar su aplicacion.

Improved background suppression in ¹H MAS NMR using composite pulses.

Science.gov (United States)

Odedra, Smita; Wimperis, Stephen

2012-08-01

A well known feature of ¹H MAS NMR spectroscopy, particularly of solids where the concentration of ¹H nuclei is low, is the presence in the spectrum of a significant broad "background" signal arising from ¹H nuclei that are outside the MAS rotor and radiofrequency coil, probably located on the surfaces of the static components of the probehead. A popular method of suppressing this unwanted signal is the "depth pulse" method, consisting of a 90° pulse followed by one or two 180° pulses that are phase cycled according to the "Exorcycle" scheme, which removes signal associated with imperfect 180° pulses. Consequently, only spins in the centre of the radiofrequency coil contribute to the ¹H MAS spectrum, while those experiencing a low B₁ field outside the coil are suppressed. Although very effective at removing background signal from the spectrum, one drawback with this approach is that significant loss of the desired signal from the sample also occurs. Here we investigate the ¹H background suppression problem and, in particular, the use of novel antisymmetric passband composite pulses to replace the simple pulses in a depth pulse experiment. We show that it is possible to improve the intensity of the ¹H signals of interest while still maintaining effective background suppression. We expect that these results will be relevant to ¹H MAS NMR studies of, for example, nominally perdeuterated biological samples or nominally anhydrous inorganic materials. Copyright © 2012 Elsevier Inc. All rights reserved.

Elektroniskās naudas sistēmas WebMoney

OpenAIRE

Zablocka, Jelena

2011-01-01

Šī darba mērķis ir pamatojoties uz speciālo literatūru un pieejamu statistisko informāciju izskatīt jautājumu par elektroniskās naudas būtību, raksturot un parādīt tās veidus, analizēt un izskatīt elektroniskās naudas izmantošanas problēmas, izpētīt un norādīt tās izmantošanas perspektīvas, novērtēt tās uzskaites un kontroles operāciju problēmas, kas ir sastopamas, izmantojot elektronisko naudu praksē. Darbs sastāv no 5 nodaļām. Pirmajā nodaļā aplūkoti elektroniskās naudas jēdziens un ...

Escala de atitudes frente ao dinheiro (MAS: Teste de modelos e poder preditivo

Directory of Open Access Journals (Sweden)

Carlos Eduardo Pimentel

2012-01-01

Full Text Available The social importance attached to money and its role as an important motivator of behavior justifies the study of its psychosocial aspects. But there is a lack of studies concerning attitudinal or psychological aspects of money in Brazil. In order to encourage research in this context, the validity of the Money Attitudes Scale (MAS was tested using confirmatory factor approaches. Results supported a brief 16-items version of the scale and replicated the factor analytic pattern with satisfactory internal consistency for the factors of power, retention, distrust, and anxiety. Age differences were observed regarding money attitudes of power, and the predictive role of the MAS to account for consumer behavior was also confirmed. This version of the MAS shows evidences of factorial validity and reliability, justifying its use in future research.

High Tech M&As

DEFF Research Database (Denmark)

Toppenberg, Gustav

2013-01-01

Technology driven industries have seen fast moving technology changes, higher complexity and reduced product life cycles. These emerging trends present challenges for companies in industries where technology is at the forefront. The extant research deals with ‘low-tech’ industries and majority...... of findings are not applicable to the high-tech industry; in fact this industry has many additional challenges. In this study, we aim to explore the process of M&A in the high-tech industry by drawing on extant literature and empirical field work. The paper outlines a research project in progress which...... intends to provide theoretical, empirical and practical contributions in answering the research question: what role does Operations and IT play in creating value in high-tech M&As? The research adds a needed perspective on M&A literature by unveiling unique challenges and opportunities faced by the M...

CAMEX-4 ER-2 MODIS AIRBORNE SIMULATOR (MAS) V1

Data.gov (United States)

National Aeronautics and Space Administration — The MODIS Airborne Simulator (MAS) is an airborne scanning spectrometer that acquires high spatial resolution imagery of cloud and surface features from its vantage...

Development of a generic, computerized nuclear material accountability system: NucMAS

International Nuclear Information System (INIS)

Cornell, M.D.; O'Leary, J.M.

1987-01-01

The application NucMAS provides basic computerized accountability functions for the Savannah River Plant (SRP) Separations Department Material Balance Areas (MBA's). These functions include data entry, data management, calculations, and report generation. NucMAS can be used both for routine reporting to the SRP central Material Control and Accounting (MC and A) system and for rapid ad hoc queries in emergency situations. The system is designed to work with any process handling one or more of the 17 accountable nuclear materials specified by the Department of Energy (DOE). It relies on user-supplied configuration data to drive data prompts, report headings, data validations, and calculations

Exposure (mAs) optimisation of a multi-detector CT protocol for hepatic lesion detection: are thinner slices better?

International Nuclear Information System (INIS)

Dobeli, Karen L.; Lewis, Sarah J.; Meikle, Steven R.; Brennan, Patrick C.; Thiele, David L.

2014-01-01

The purpose of this work was to determine the exposure-optimised slice thickness for hepatic lesion detection with CT. A phantom containing spheres (diameter 9.5, 4.8 and 2.4mm) with CT density 10 HU below the background (50 HU) was scanned at 125, 100, 75 and 50 mAs. Data were reconstructed at 5-, 3- and 1-mm slice thicknesses. Noise, contrast-to-noise ratio (CNR), area under the curve (AUC) as calculated using receiver operating characteristic analysis and sensitivity representing lesion detection were calculated and compared. Compared with the 125 mAs/5mm slice thickness setting, significant reductions in AUC were found for 75 mAs (P<0.01) and 50 mAs (P<0.05) at 1- and 3-mm thicknesses, respectively; sensitivity for the 9.5-mm sphere was significantly reduced for 75 (P<0.05) and 50 mAs (P<0.01) at 1-mm thickness; sensitivity for the 4.8-mm sphere was significantly lower for 100, 75 and 50 mAs at all three slice thicknesses (P<0.05). The 2.4-mm sphere was rarely detected. At each slice thickness, noise at 100, 75 and 50 mAs exposures was approximately 10, 30 and 50% higher, respectively, than that at 125 mAs exposure. CNRs decreased in an irregular manner with reductions in exposure and slice thickness. This study demonstrated no advantage to using slices below 5mm thickness, and consequently thinner slices are not necessarily better.

Smoke, Clouds and Radiation Brazil NASA ER-2 Moderate Resolution Imaging Spectrometer (MODIS) Airborne Simulator (MAS) Data

Data.gov (United States)

National Aeronautics and Space Administration — SCARB_ER2_MAS data are Smoke, Clouds and Radiation Brazil (SCARB) NASA ER2 Moderate Resolution Imaging Spectrometer (MODIS) Airborne Simulator (MAS)...

Characterization and significance of ACE2 and Mas receptor in human colon adenocarcinoma.

Science.gov (United States)

Bernardi, Stella; Zennaro, Cristina; Palmisano, Silvia; Velkoska, Elena; Sabato, Nicoletta; Toffoli, Barbara; Giacomel, Greta; Buri, Luigi; Zanconati, Fabrizio; Bellini, Giuseppe; Burrell, Louise M; De Manzini, Nicolò; Fabris, Bruno

2012-03-01

A new arm of the renin-angiotensin system (RAS) has been recently characterized; this includes angiotensin converting enzyme (ACE)2 and angiotensin (Ang)1-7, a heptapeptide acting through the Mas receptor (MasR). Recent studies show that Ang1-7 has an antiproliferative action on lung adenocarcinoma cells. The aim of this study was to characterize RAS expression in human colon adenocarcinoma and to investigate whether Ang1-7 exerts an antiproliferative effect on human colon adenocarcinoma cells. Gene, protein expression and enzymatic activity of the main components of the RAS were determined on non-neoplastic colon mucosa as well as on the tumor mass and the mucosa taken 5 cm distant from it, both collected from patients with colon adenocarcinoma. Two different human colon cancer cell lines were treated with AngII and Ang1-7. The novel finding of this study was that MasR was significantly upregulated in colon adenocarcinoma compared with non-neoplastic colon mucosa, which showed little or no expression of it. ACE gene expression and enzymatic activity were also increased in the tumors. However, AngII and Ang1-7 did not have any pro-/antiproliferative effects in the cell lines studied. The data suggest that upregulation of the MasR could be used as a diagnostic marker of colon adenocarcinoma.

Audición espacial en ambientes reverberantes: aspectos teóricos relevantes

Directory of Open Access Journals (Sweden)

Claudia Arias

2003-01-01

Full Text Available En ambientes reverberantes el sonido se propaga en múltiples direcciones sufriendo cambios físicos de importancia. El sistema auditivo debe se capaz de resolver la competencia perceptual que se produce entre el sonido original y sus reflexiones. En este artículo se presentan aspectos teóricos relevantes de la audición espacial con especial tratamiento del efecto precedente. Se trata de una estrategia inconciente que el individuo utiliza para enfrentar la información sonora conflictiva de los espacios reverberantes. Es el fenómeno perceptual de fusión espacial que ocurre cuando dos sonidos similares se presentan desde diferentes lugares, separados por un breve retardo de tiempo. El individuo escucha sólo un sonido que localiza según la dirección del sonido que llegó primero

Gamma-radiation induced cross-links in ethylene-propylene rubber studied by CP-MAS NMR

International Nuclear Information System (INIS)

Sohma, J.; Shiotani, M.; Murakami, S.

1983-01-01

A new technique of 13 C-NMR, the CP-MAS method, was applied to study a chemistry of cross-links induced by #betta#-irradiation of ethylene-propylene rubber. The chemical species of cross-linking points were specified with their relative concentrations by the analysis of the CP-MAS spectra obtained before and after the irradiation. It was found that the short branches were also formed by the irradiation. A comparison was made between the cross-links detected by the CP-MAS method and those obtained by the Charlesby-Pinner analysis of the gelation caused by the #betta#-irradiation. The conventional 13 C-NMR of the cross-linked and swollen EPR provided us an information on the sol parts of the sample but little information on the cross-links in the gel parts. (author)

Angiotensin II Type 2 Receptor and Receptor Mas Are Colocalized and Functionally Interdependent in Obese Zucker Rat Kidney

DEFF Research Database (Denmark)

Patel, Sanket N; Ali, Quaisar; Samuel, Preethi

2017-01-01

The actions of angiotensin II type 2 receptor (AT2R) and the receptor Mas (MasR) are complex but show similar pronatriuretic function; particularly, AT2R expression and natriuretic function are enhanced in obese/diabetic rat kidney. In light of some reports suggesting a potential positive...... interaction between these receptors, we tested hypothesis that renal AT2R and MasR physically interact and are interdependent to stimulate cell signaling and promote natriuresis in obese rats. We found that infusion of AT2R agonist C21 in obese Zucker rats (OZR) increased urine flow and urinary Na excretion...... coimmunoprecipitated with MasR in cortical homogenate of OZR. Immunoblotting of cortical homogenate cross-linked with zero-length oxidative (sulfhydryl groups) cross-linker cupric-phenanthroline revealed a shift of AT2R and MasR bands upward with overlapping migration for their complexes which were sensitive...

Exploring high-resolution magic angle spinning (HR-MAS) NMR spectroscopy for metabonomic analysis of apples.

Science.gov (United States)

Vermathen, Martina; Marzorati, Mattia; Vermathen, Peter

2012-01-01

Classical liquid-state high-resolution (HR) NMR spectroscopy has proved a powerful tool in the metabonomic analysis of liquid food samples like fruit juices. In this paper the application of (1)H high-resolution magic angle spinning (HR-MAS) NMR spectroscopy to apple tissue is presented probing its potential for metabonomic studies. The (1)H HR-MAS NMR spectra are discussed in terms of the chemical composition of apple tissue and compared to liquid-state NMR spectra of apple juice. Differences indicate that specific metabolic changes are induced by juice preparation. The feasibility of HR-MAS NMR-based multivariate analysis is demonstrated by a study distinguishing three different apple cultivars by principal component analysis (PCA). Preliminary results are shown from subsequent studies comparing three different cultivation methods by means of PCA and partial least squares discriminant analysis (PLS-DA) of the HR-MAS NMR data. The compounds responsible for discriminating organically grown apples are discussed. Finally, an outlook of our ongoing work is given including a longitudinal study on apples.

Increasing brain angiotensin converting enzyme 2 activity decreases anxiety-like behavior in male mice by activating central Mas receptors.

Science.gov (United States)

Wang, Lei; de Kloet, Annette D; Pati, Dipanwita; Hiller, Helmut; Smith, Justin A; Pioquinto, David J; Ludin, Jacob A; Oh, S Paul; Katovich, Michael J; Frazier, Charles J; Raizada, Mohan K; Krause, Eric G

2016-06-01

Over-activation of the brain renin-angiotensin system (RAS) has been implicated in the etiology of anxiety disorders. Angiotensin converting enzyme 2 (ACE2) inhibits RAS activity by converting angiotensin-II, the effector peptide of RAS, to angiotensin-(1-7), which activates the Mas receptor (MasR). Whether increasing brain ACE2 activity reduces anxiety by stimulating central MasR is unknown. To test the hypothesis that increasing brain ACE2 activity reduces anxiety-like behavior via central MasR stimulation, we generated male mice overexpressing ACE2 (ACE2 KI mice) and wild type littermate controls (WT). ACE2 KI mice explored the open arms of the elevated plus maze (EPM) significantly more than WT, suggesting increasing ACE2 activity is anxiolytic. Central delivery of diminazene aceturate, an ACE2 activator, to C57BL/6 mice also reduced anxiety-like behavior in the EPM, but centrally administering ACE2 KI mice A-779, a MasR antagonist, abolished their anxiolytic phenotype, suggesting that ACE2 reduces anxiety-like behavior by activating central MasR. To identify the brain circuits mediating these effects, we measured Fos, a marker of neuronal activation, subsequent to EPM exposure and found that ACE2 KI mice had decreased Fos in the bed nucleus of stria terminalis but had increased Fos in the basolateral amygdala (BLA). Within the BLA, we determined that ∼62% of GABAergic neurons contained MasR mRNA and expression of MasR mRNA was upregulated by ACE2 overexpression, suggesting that ACE2 may influence GABA neurotransmission within the BLA via MasR activation. Indeed, ACE2 overexpression was associated with increased frequency of spontaneous inhibitory postsynaptic currents (indicative of presynaptic release of GABA) onto BLA pyramidal neurons and central infusion of A-779 eliminated this effect. Collectively, these results suggest that ACE2 may reduce anxiety-like behavior by activating central MasR that facilitate GABA release onto pyramidal neurons within the

Regulatory focussing of the relevant aspects related to the transport of radioactive materials in Argentina; Enfoque regulatorio de los aspectos relevantes del transporte de materiales radiactivos en Argentina

Energy Technology Data Exchange (ETDEWEB)

Lopez Vietri, J R; Novo, R G; Bianchi, A J [Autoridad Regulatoria Nuclear, Buenos Aires (Argentina)

1999-12-31

Mercado Comun del Sur, MERCOSUR, International Atomic Energy Agency, IAEA, and International Organisation for Standardisation, ISO). (author) [Espanol] Texto completo: El objetivo del presente trabajo es describir sumariamente los aspectos relevantes del transporte de materiales radiactivos en Argentina tratados desde un enfoque eminentemente regulatorio, es decir del punto de vista de su autoridad competente de aplicacion, la Autoridad Regulatoria Nuclear (ARN). En primer lugar, se brinda el marco juridico y reglamentario aplicable al transporte de material radiactivo y las correspondientes autoridades involucradas (ARN, Secretaria de Transporte, y Fuerza Aerea, Prefectura Naval y Armada Argentina). Luego, se ofrece un esquema de las caracteristicas principales de las expediciones de materiales radiactivos, utilizados en actividades del ciclo de combustible nuclear y en medicina, industria e investigacion, que en promedio se efectuan anualmente en Argentina. Mas adelante, el trabajo analiza brevemente los recursos y la forma en que la ARN realiza la verificacion del cumplimiento con la reglamentacion de transporte vigente en el pais. En particular, se explicita algunas de las herramientas fundamentales utilizadas por el sistema con que se lleva acabo tal verificacion: avisos de transporte, bases de datos, licenciamiento de cierto tipo de bultos, expediciones y materiales, auditorias e inspecciones, y regimenes de tasas y de sanciones. Por otra parte, se menciona la experiencia ganada por Argentina en el desarollo, licenciamiento, fabricacion y utilizacion de disenios nacionales de bultos del Tipo B(U) y materiales radiactivos en forma especial (fuentes selladas de cobalto 60 e iridio 192). Asimismo, se describen brevemente las instalaciones para ensayos, con que cuenta el pais, necesarias para llevar a cabo los disenios citados. Por ultimo, el trabajo describe sucintamente las actividades principales de la ARN en el tema, exlusivamente en sus relaciones con organismos

Analisis del contenido curricular de los Documentos Normativos del Programa de Ciencias en el area de biologia para la escuela superior del sistema de educacion publica de Puerto Rico: 1993-2012

Science.gov (United States)

Davila Montanez, Melissa

Esta investigacion de naturaleza cualitativa se ocupo de realizar un analisis de contenido documental de los Documentos Normativos del Programa de Ciencias en el area de biologia de la escuela superior del sistema de educacion publica de Puerto Rico del periodo 1993-2012. Los documentos analizados fueron: Guia Curricular, 1995; Marco Curricular, 2003; Estandares de Excelencia, 1996, 2000 y Estandares de Contenido y Expectativas de Grado, 2007. Se indago si hubo cambios en significados en los Componentes Estructurales: Naturaleza de la ciencia, Paradigmas para la ensenanza de la ciencia, Funcion del curriculo formal, Mision de la ensenanza de la ciencia; Contenidos, destrezas y competencias, Estrategias de ensenanza y Evaluacion/Assessment del aprendizaje. El analisis sugiere que no hubo cambios sustanciales en los significados de los Componentes Estructurales. Los documentos estudiados muestran mayormente caracteristicas similares, aunque los documentos mas recientes eran mas descriptivos, explicativos y especificos.

Evidence for Heterodimerization and Functional Interaction of the Angiotensin Type 2 Receptor and the Receptor MAS

DEFF Research Database (Denmark)

Leonhardt, Julia; Villela, Daniel C.; Teichmann, Anke

2017-01-01

The angiotensin type 2 receptor (AT2R) and the receptor MAS are receptors of the protective arm of the renin-angiotensin system. They mediate strikingly similar actions. Moreover, in various studies, AT2R antagonists blocked the effects of MAS agonists and vice versa. Such cross-inhibition may in...

Informe: Taller de descripción de las diferencias entre Aynokas y parcela privada y muestreo preliminar de suelos para caracterizar los tipos de suelos

OpenAIRE

Baylon, C.; Cóndor, Pedro

2008-01-01

La investigación tuvo como objetivos diferenciar los tipos de suelos según su manejo (parcela privada y aynokas) utilizando indicadores mas relevantes y muestrear suelos de la aynoka más representa de la comunidad. LTRA-4 (Practices and Strategies for Vulnerable Agro-Ecosystems)

X-ray fluorescent analysis on Indo-Pacific glass beads from Sungai Mas archaeological sites, Kedah, Malaysia

International Nuclear Information System (INIS)

Zuliskandar Ramli; Nik Hassan Shuhaimi; Nik Abdul Rahman; Abdul Latif Samian

2011-01-01

Sungai Mas was an ancient port-kingdom located on West Coast of Peninsula Malaysia in a district of Kota Kuala Muda, Kedah, Malaysia. The port-kingdom evolved as an entrepot since fifth century AD and continuously visited by international trader from India, China, Middle East and Europe until eighteenth century AD. Sungai Mas was also one of the Indo-Pacific beads making centers in Southeast Asia since sixth to thirteenth century AD and also produced pottery and brick. X-ray fluorescent analysis (XRF) on Sungai Mas Indo-Pacific beads is carried out to determine whether the glass beads originated from Arikamedu, India or locally made by community in Sungai Mas. Totally, twenty-two samples of beads and beads materials assayed by XRF were chosen. Contents of nine major elements and nine trace elements, which might be present of flux, stabilizer, colorants or opacifier were examined. The elements Si, Na, K, Ca, Fe, Al, Ti, Mn, Mg, Cu, Pb, Zr, Sr, Ba, La, U, Ni and Cr were detectable in all samples. The concentration of elements found are discussed in terms of flux, silica or lead base glass, color and/or opacity of the glass beads and glass samples. The result showed that Sungai Mas produced their own Indo-Pacific beads from sixth to thirteenth century AD. (author)

Stanowisko badawcze do oceny efektów utwardzania mas ze szkłem wodnym

Directory of Open Access Journals (Sweden)

M. Stachowicz

2012-12-01

Full Text Available W pracy przedstawiono wyniki badań nad możliwością zastosowania nowego stanowiska badawczego do oceny, na podstawie końcowejzawartości wody, finalnego efektu utwardzania wybranymi metodami mas ze szkłem wodnym. Badania wykonano na innowacyjnym,mobilnym stanowisku mikrofalowej linii szczelinowej wykorzystującej zjawisko występowania fali stojącej w falowodzie. Badaniompoddano pięć mas sporządzonych z dostępnymi w handlu gatunkami szkła wodnego, które utwardzano trzema, wybranymi metodami:mikrofalową, klasyczną oraz w procesie CO2. Wykazano, na przykładzie mas ze szkłem wodnym, że prezentowane, mobilne stanowiskopomiarowe może, na podstawie określenia końcowej zawartości wody, służyć z powodzeniem do oceny ostatecznego efektu utwardzaniamas formierskich i rdzeniowych.

ESTUDIO DE ASPECTOS RELEVANTES DE LOS HABITANTES DE CAZUCÁ (SECTOR 4

Directory of Open Access Journals (Sweden)

Gregorio Clavijo Parrado

2007-01-01

Full Text Available Esta investigación de tipo descriptivo tuvo como objetivo general el acercamiento a la realidad social, económi - ca y demográfica de un sector de la comunidad de Cazucá, en aspectos considerados relevantes, tales como: vivienda, educación, ocupación, ingresos, gastos, edad y otros. Aunque la observación de campo se realizó en el sector cuatro de Cazucá (Soacha/Cundinamarca, se podría considerar como una muestra representativa de lo que podría estar sucediendo con el total de la comunidad. Dadas las características socioeconómicas de las familias, como unidades de observación, los resultados de - tectaron su vulnerabilidad a través de dimensiones tangibles y no tangibles relacionadas con la pobreza que, posteriormente, podrían ser objeto de indagación más profunda. Los resultados se socializarán con la comunidad y con las entidades y organismos que en Cazucá están o estén adelantando programas culturales, educativos, microempresariales y otros.

Marker-assisted-selection (MAS): A fast track to increase genetic ...

African Journals Online (AJOL)

Mapping and tagging of agriculturally important genes have been greatly facilitated by an array of molecular markers in crop plants. Marker-assisted selection (MAS) is gaining considerable importance as it would improve the efficiency of plant breeding through precise transfer of genomic regions of interest (foreground ...

Reducing radiation dose in liver enhanced CT scan by setting mAs according to plain scan noise

International Nuclear Information System (INIS)

Yang Shangwen; He Jian; Yang Xianfeng; Zhou Kefeng; Xin Xiaoyan; Hu Anning; Zhu Bin

2013-01-01

Objective: To investigate the feasibility of setting mAs in liver enhanced CT scan according to plain scan noise with fixed mA CT scanner, in order to reduce the radiation dose. Methods: One hundred continuous patients underwent liver enhanced CT scan (group A) prospectively. Two hundred and fifty mAs was used in plain and enhanced CT scans. Noises of plain and venous phase CT images were measured, and the image quality was evaluated. The equation between mAs of enhanced scan and noise of plain scan image was derived. Another 100 continuous patients underwent liver enhanced CT scan (group B). Enhanced scan mAs was calculated from noise on plain scan by using the equation above. Noises on venous phase images were measured and the image quality was measured. Based on body mass index (BMI), patients in groups A and B were divided into three subgroups respectively: BMI < 18.5 kg/m 2 , 18.5 kg/m 2 ≤ BMI < 25.0 kg/m 2 and BMI ≥ 25.0 kg/m 2 . Image quality score was compared with nonparametric rank sum test, CT dose index (CTDI) and effective dose (ED) were measured and compared between each subgroup with 2 independent samples t or t' test. Results: The equation between enhanced scan mAs (mAsX) and plain scan noise (SDp) was as follows: mAsX = mAs1 × [(0.989 × SDp + 1.06) /SDx] 2 , mAs1 = 250 mAs, SDx = 13. In patients with BMI < 18.5 kg/m 2 , ED of group A [(6.86 ± 0.38) mSv, n = 12] was significantly higher than group B [(2.66 ± 0.46) mSv, n = 10)] (t = 18.52, P < 0.01). In patients with 18.5 kg/m 2 ≤ BMI < 25.0 kg/m 2 , ED of group A [(7.08 ± 0.91) mSv, n = 66] was significantly higher than group B [(4.50 ± 1.41) mSv, n = 73] (t' = 10.57, P < 0.01). In patients with BMI ≥ 25.0 kg/m 2 , there was no significant difference between EDs of group A (7.54 ± 0.62 mSv, n = 22) and group B [(8.19 ± 3.16) mSv, n = 17] (t' = 0.89, P = 0.39). Image quality of 5 patients in group A and none in group B did not meet the diagnostic requirement

Angiotensin type 2 receptor (AT2R) and receptor Mas

DEFF Research Database (Denmark)

Villela, Daniel; Leonhardt, Julia; Patel, Neal

2015-01-01

The angiotensin type 2 receptor (AT2R) and the receptor Mas are components of the protective arms of the renin-angiotensin system (RAS), i.e. they both mediate tissue protective and regenerative actions. The spectrum of actions of these two receptors and their signalling mechanisms display striki...

48 CFR 538.270 - Evaluation of multiple award schedule (MAS) offers.

Science.gov (United States)

2010-10-01

... SERVICES ADMINISTRATION SPECIAL CATEGORIES OF CONTRACTING FEDERAL SUPPLY SCHEDULE CONTRACTING Establishing and Administering Federal Supply Schedules 538.270 Evaluation of multiple award schedule (MAS) offers... determining the Government's price negotiation objectives, consider the following factors: (1) Aggregate...

Stilistiskie izteiksmes līdzekļi Coca-Cola reklāmas plakātos

OpenAIRE

Gudre, Anete

2017-01-01

Šajā darbā tika pētīti mākslinieciskie un fonētiskie stila izteiksmes līdzekļi un to lietojums Coca-Cola reklāmas plakātos. Kā arī tika analizēti Coca-Cola reklāmas plakātu vizuālie elementi. Tēma tika izvēlēta, lai redzētu atšķirību starp mākslinieciskās izteiksmes līdzekļiem un, lai redzētu, cik bieži tie tiek izmantoti izvēlētajos reklāmas plakātos. Darbā tika aplūkoti vispopulārākie mākslinieciskās izteiksmes līdzekļi – metafora, epitets, personifikācija un hiperbola. Multimediju analīze ...

New marine commons along the Chilean coast – the management areas (MAs of Peñuelas and Chigualoco

Directory of Open Access Journals (Sweden)

Gloria L. Gallardo Fernández

2011-09-01

Full Text Available To halt degradation of benthic resources in Chile, management areas (MAs were set up under the Territorial Use Rights in Fisheries (TURFs framework in the late 1990s. Integrated into the global market, MAs have since expanded along the Chilean coast, involving thousands of small-scale artisanal fishers. This paper analyses how economic criteria relates to social and ecological performance of Chilean MAs, by applying TURFs, commons and co-management theory to two cases: MAs Peñuelas and Chigualoco. To collect and analyse data Participatory Rural Appraisal tools, interviews and official statistics and reports were used. Our results show that MAs’ economic benefits are connected to fluctuations on the global market. Adapting to changing world market prices then becomes paramount. TURFs’ main goal is ecological conservation, but achieving this seems to depend on meeting fishers’ livelihoods; failure to do so likely results in failure to meet conservation objectives. A serious weakness of the Chilean TURFs system is that it does not pay enough attention to fishers’ livelihoods or to the global market context. Furthermore, there is a strong relationship between good economic benefits and social sustainability. But irrespective of economic performance, fisher organizations have been empowered and gained increased resource control with the TURFs system. At policy level, a differentiated and more flexible system could be more suitable for existing heterogeneous MAs and their particular economic, social and ecological challenges. For improved economic sustainability and resource conservation, a system with multiple-species managing MAs could be promoted as well. Finally, to enhance theory of commons, co-management and TURFs, we argue for greater acknowledgement of TURFs’ social benefits in addition to economic assessments. More attention should also be paid to global market conditions of which MAs are dependent and in which they are embedded

Atributos Relevantes de Destinos Turísticos na Percepção de Internautas Brasileiros

Directory of Open Access Journals (Sweden)

Iomara Scandelari Lemos

2010-09-01

Full Text Available Resumo Este artigo objetiva identificar, na percepção do turista brasileiro, a estrutura subjacente da importância de atributos que caracterizam os destinos turísticos. Trata-se de uma pesquisa do tipo survey disponibilizada em website e respondida por 471 internautas brasileiros. Utilizaram-se procedimentos estatísticos de análise fatorial; validade de construto; construção de escalas e análise fatorial confirmatória com modelagem de equações estruturais. Conclui-se que, tomados isoladamente, os atributos considerados mais relevantes foram: sensação de segurança; qualidade do aspecto visual do destino; sensação de não estar sendo explorado e facilidade de acesso ao destino turístico, totalizando 70,5% das respostas. Contudo, analisados em conjunto, três fatores respondem por 62,2% da variância explicada. Palavras-chave: análise fatorial; modelagem de equação estrutural; atributos relevantes de turismo. Abstract This article aims to identify, in the perception of Brazilian tourists, the subjacent structure of the importance of attributes that characterize the tourist places destinations. This research is a survey available on website and answered by 471 Brazilians internet users. It used statistical procedures such as factorial analysis, construct reliability, construction of scales and structural equation modeling for confirmatory factorial analysis. It was concluded that, taken alone, the attributes considered most important were: sensation of visiting a safety place, visual aspect quality of the tourism destination areas, sensation of not being exploited and facilities concerned to the tourism destination areas. These totalized 70.5% of responses. However, taken together, three factors account for 62.2% of variance explained. Keywords: factorial analysis; structural equation modeling; tourism's relevant attributes.

The effect of FF-MAS on porcine cumulus-oocyte complex maturation, fertilization and pronucleus formation in vitro

DEFF Research Database (Denmark)

Færge, Inger; Strejcek, Frantisek; Laurincik, Jozef

2006-01-01

mechanically using a fine glass pipette under constant pH and in vitro fertilized with fresh semen (5 x 105 spermatozoa/ml). The presumptive zygotes were evaluated 18 h after fertilization. The addition of pFF increased the monospermic as well as the polyspermic penetration of oocytes. In the absence of p......FF, the addition of FF-MAS decreased the polyspermic penetration rate, wehreas FF-MAS in combination with pFF decreased monospermic and increased polyspermic penetration. The degeneration rate of ova decreased in the presence of FF-MAS irrespective of the presence or absence of pFF. In the absence of pFF, FF...

Effects of Cornus mas L. and Morus rubra L. extracts on penicillin-induced epileptiform activity: an electrophysiological and biochemical study.

Science.gov (United States)

Tubaş, Filiz; Per, Sedat; Taşdemir, Abdulkadir; Bayram, Ayşe Kaçar; Yıldırım, Mehmet; Uzun, Aydın; Saraymen, Recep; Gümüş, Hakan; Elmalı, Ferhan; Per, Hüseyin

2017-01-01

Traditionally, Morus rubra L. (Moraceae) (red mulberry) and Cornus mas L. (Cornacea) (cornelian cherry) fruits are eaten fresh and are also used in marmalades, juices, jam, natural dyes in Turkey and are believed to have beneficial effects in case of multiple health issues such as antipyretic, diarrhea and intestinal parasites. However, the effects of M. rubra and C. mas on epilepsy has not been known. This study evaluates the effects of M. rubra and C. mas extracts on penicillin-induced epileptiform activity. Sixty Wistar rats randomly divided into ten groups (n=6): control, sham, penicillin, penicillin+M. rubra extract (2.5, 5, 10, 20 mg/kg) and penicillin+C. mas extract (2.5, 5, 10 mg/kg). Epileptiform activity was induced by using penicillin (500 IU, i.c.) and electrocorticogram records (150 min) were obtained. Also, biochemical analysis in blood samples were evaluated. According to the electrocorticogram analysis, the effective dose was detected as 10 mg/kg for both C. mas and M. rubra. This dose decreased the spike frequencies of convulsions while amplitude wasn't changed by both substances. In erythrocyte studies, there were significant differences regarding nitric oxide in the control, sham and penicillin groups. There were significant differences regarding malondialdehyde in all groups. In the plasma, there were significant differences among groups regarding xanthine oxidase in the penicillin‑C. mas and penicillin‑M. rubra groups. There were differences regarding malondialdehyde in the penicillin-C. mas and M. rubra-C. mas groups. Both extracts reduced the frequency of epileptiform activity. After administration of the extracts malondialdehyde levels decreased also in both erythrocytes and plasma.

Study on MAs transmutation of accelerator-driven system sodium-cooled fast reactor loaded with metallic fuel

International Nuclear Information System (INIS)

Han Song; Yang Yongwei

2007-01-01

Through the analysis of the effect of heavy metal actinides on the effective multiplication constant (k eff ) of the core in accelerator-driven system (ADS) sodium-cooled fast reactor loaded with metallic fuel, we gave the method for determining fuel components. the characteristics of minor actinides (MAs) transmutation was analyzed in detail. 3D burn-up code COUPLE, which couples MCNP4c3 and ORIGEN2, was applied to the neutron simulation and burn up calculation. The results of optimized scheme shows that adjusting the proportion of 239 Pu and maintaining the value during the burn-up cycle is an efficient method of designing k eff and keeping stable during the burn-up cycle. Spallation neutrons lead to the neutron spectrum harder at inner core than that at outer core. It is in favor of improving MA's fission cross sections and the capture-to-fission ratio. The total MAs transmutation support ratio 8.3 achieves excellent transmutation effect. For higher flux at inner core leads to obvious differences on transmutation efficiency,only disposing MAs at inner core is in favor of decreasing the loading mass and improving MAs transmutation effect. (authors)

Role of Mas receptor in renal blood flow response to angiotensin-(1-7) in ovariectomized estradiol treated rats.

Science.gov (United States)

Saberi, Shadan; Dehghani, Aghdas; Nematbakhsh, Mehdi

2016-01-01

The angiotensin 1-7 (Ang 1-7), is abundantly produced in kidneys and antagonizes the function of angiotensin II through Mas receptor (MasR) or other unknown mechanisms. In the current study, the role of MasR and steroid hormone estrogen on renal blood flow response to Ang 1-7 administration was investigated in ovariectomized (OV) female rats. OV female Wistar-rats received estradiol (500 μg/kg/week) or vehicle for two weeks. In the day of the experiment, the animals were anesthetized, cannulated, and the responses including mean arterial pressure, renal blood flow (RBF), and renal vascular resistance at the constant level of renal perfusion pressure to graded infusion of Ang 1-7 at 0, 100 and 300 ng/kg/min were determined in OV and OV estradiol-treated (OVE) rats, treated with vehicle or MasR antagonist; A779. RBF response to Ang 1-7 infusion increased dose-dependently in vehicle (Pdose <0.001) and A779-treated (Pdose <0.01) animals. However, when MasR was blocked, the RBF response to Ang 1-7 significantly increased in OV animals compared with OVE rats (P<0.05). When estradiol was limited by ovariectomy, A779 increased RBF response to Ang 1-7 administration, while this response was attenuated in OVE animals.

The demands and benefits of ergonomics in Sri Lankan apparel industry: A case study at MAS holdings.

Science.gov (United States)

Abeysekera, John; Illankoon, Prasanna

2016-10-17

Apparel exports bring in sizeable foreign income to Sri Lanka. To protect and promote this industry is a paramount need. This can be carried out by applying Human Factors/Ergonomics (HFE) which has proved to control negative effects at work places. This paper reports a case study which describes the demands and benefits of HFE in MAS Holdings which owns a large share of the apparel industry in Sri Lanka. The study consisted of walk through observation survey, a questionnaire survey and ergonomic work place analysis followed by a training programme to selected employees in three companies. Positive responses to questionnaires revealed good ergonomic practices in the work places surveyed. Ergonomically unfit chairs and potential hazards e.g. exposure to noise and hot environment were detected. It is seen that MAS have introduced strategies originated by Toyota Production System viz. 5S, Kaizen, six sigma etc., which are in fact ergonomic methods. A progressive project MAS boast of viz. 'MAS Operating System' (MOS) empowers training and development to employees. MAS Holdings has adequately realized the benefits of applying HFE as evident by the number of awards received. Relevant companies were advised to take appropriate corrective measures to control the potential hazards.

Factores de riesgo relevantes asociados a las malformaciones congénitas en la provincia de Cienfuegos, 2008-2013

OpenAIRE

Santos Solís, Mailé; Vázquez Martínez, Vivian; Torres González, Cristobal; Torres Vázquez, Grisel; Aguiar Santos, Daniela; Hernández Monzón, Hernán

2016-01-01

Fundamento: las malformaciones congénitas contribuyen de forma importante a la mortalidad infantil. Producen secuelas y resulta difícil su prevención. Objetivo: determinar factores de riesgo relevantes asociados a la aparición de malformaciones congénitas. Métodos: estudio observacional de casos y controles no pareados realizado en Cienfuegos en el período de enero de 2008 a diciembre de 2013, sobre un universo de 27 002 gestantes; las mujeres registradas con fetos o recién nacidos con malfor...

29Si MAS NMR for the zeolite Y - gallium oxide system

International Nuclear Information System (INIS)

Sulikowski, B.; Derewinski, M.; Olejniczak, Z.; Segnowski, S.

1994-01-01

Wide-pore zeolites modified by gallium oxide has been prepared for catalytic use. Its physico-chemical and catalytic properties have been studied. The structure changes of the catalyst have been investigated by means of MAS NMR spectroscopy. Spectra of 29 Si has been described and discussed

HR-MAS NMR allied to chemometric on Hancornia speciosa varieties differentiation

Energy Technology Data Exchange (ETDEWEB)

Flores, Igor S. [Instituto Federal de Goiás (IFG), Luziânia, GO (Brazil); Silva, Andressa K.; Chaves, Lazaro J.; Collevatti, Rosane G.; Lião, Luciano M., E-mail: lucianoliao@ufg.br [Universidade Federal de Goiás (UFG), Goiânia, GO (Brazil); Furquim, Leonnardo C. [Faculdade Objetivo, GO (Brazil); Castro, Carlos F.S. [Instituto Federal de Educação, Ciência e Tecnologia Goiano (IFGoiano), GO (Brazil)

2018-05-01

This work describes the potential of chemometric analyses applied to {sup 1}H high-resolution magic angle spinning nuclear magnetic resonance ({sup 1}H HR-MAS NMR) data for the chemotaxonomic investigation of Hancornia speciosa (Apocynaceae) varieties. This plant, popularly known as mangaba, has a complex morphological differentiation and thus chemical analyses can be used for their taxonomic classification. In comparison to traditional techniques, {sup 1}H HR-MAS NMR allied with chemometrics provided a simple and low cost method for chemotaxonomy. Leaves of four varieties of H. speciosa from a common garden experiment was studied and demonstrated that H. speciosa var. speciosa differs from others due to its specific metabolic profile, and var. pubescens was discriminated based on its high phenolic compound content. The distinction between the latter variety and gardineri is important once it allows for the selection of samples with greater commercial value, once they produce the largest and heaviest fruits. (author)

Measuring proton shift tensors with ultrafast MAS NMR.

Science.gov (United States)

Miah, Habeeba K; Bennett, David A; Iuga, Dinu; Titman, Jeremy J

2013-10-01

A new proton anisotropic-isotropic shift correlation experiment is described which operates with ultrafast MAS, resulting in good resolution of isotropic proton shifts in the detection dimension. The new experiment makes use of a recoupling sequence designed using symmetry principles which reintroduces the proton chemical shift anisotropy in the indirect dimension. The experiment has been used to measure the proton shift tensor parameters for the OH hydrogen-bonded protons in tyrosine·HCl and citric acid at Larmor frequencies of up to 850 MHz. Copyright © 2013 Elsevier Inc. All rights reserved.

NOMEX - a universal diagnostic dosemeter, mA.s, and kV meter for acceotance test measurements and quality assurance

International Nuclear Information System (INIS)

Hein, G.; Pychlau, P.; Schuele, E.

1992-01-01

A universal diagnostic dosemeter is introduced which was designed for acceptance test measurements and quality assurance. It can also be used for periodic constancy checks. To facilitate the comprehensive tests, the NOMEX can measure all important quantities, such as dose and dose rate, mean peak voltage, exposure time, mA.s product, dose per mA.s, dose per pulse, attenuation factor, relative standard deviation and length dose product in CT. All these quantities, except the mA.s product, are measured non-invasively. The instrument's concept, its applications and technical data are described. (author)

Lielveikalu RIMI reklāmas kampaņas ─ auditorijas uzmanības piesaistes analīze

OpenAIRE

Fjodorova, Margarita

2008-01-01

Mana darba tēma ir „Lielveikalu „RIMI” reklāmas kampaņas – auditorijas uzmanības piesaistes analīze.” Es apskatu 2003. – 2008.gada „RIMI” video reklāmas, lai pierādītu sava darba hipotēzi, ka „RIMI” lielveikalu video reklāmās laika posmā no 2003. līdz 2008. gadam nav bijis vienotu auditorijas uzmanības piesaistes elementu, bet tie tika ieturēti tikai kādas konkrētas reklāmas kampaņas robežās kā galvenie auditorijas uzmanības piesaistes elementi. Sava darba teorētiskajā daļā es pieturēšos pie ...

1H line width dependence on MAS speed in solid state NMR - Comparison of experiment and simulation

Science.gov (United States)

Sternberg, Ulrich; Witter, Raiker; Kuprov, Ilya; Lamley, Jonathan M.; Oss, Andres; Lewandowski, Józef R.; Samoson, Ago

2018-06-01

Recent developments in magic angle spinning (MAS) technology permit spinning frequencies of ≥100 kHz. We examine the effect of such fast MAS rates upon nuclear magnetic resonance proton line widths in the multi-spin system of β-Asp-Ala crystal. We perform powder pattern simulations employing Fokker-Plank approach with periodic boundary conditions and 1H-chemical shift tensors calculated using the bond polarization theory. The theoretical predictions mirror well the experimental results. Both approaches demonstrate that homogeneous broadening has a linear-quadratic dependency on the inverse of the MAS spinning frequency and that, at the faster end of the spinning frequencies, the residual spectral line broadening becomes dominated by chemical shift distributions and susceptibility effects even for crystalline systems.

Participation and Performance Reporting for the Alternate Assessment Based on Modified Achievement Standards (AA-MAS). Technical Report 58

Science.gov (United States)

Albus, Deb; Thurlow, Martha L.; Lazarus, Sheryl S.

2011-01-01

This report examines publicly reported participation and performance data for the alternate assessment based on modified achievement standards (AA-MAS). The authors' analysis of these data included all states publicly reporting AA-MAS data, regardless of whether they had received approval to use the results for Title I accountability calculations.…

Mas-allatotropin in the developing antennal lobe of the sphinx moth Manduca sexta: distribution, time course, developmental regulation, and colocalization with other neuropeptides.

Science.gov (United States)

Utz, Sandra; Huetteroth, Wolf; Vömel, Matthias; Schachtner, Joachim

2008-01-01

The paired antennal lobes (ALs) of the sphinx moth Manduca sexta serve as a well-established model for studying development of the primary integration centers for odor information in the brain. To further reveal the role of neuropeptides during AL development, we have analyzed cellular distribution, developmental time course, and regulation of the neuropeptide M. sexta allatotropin (Mas-AT). On the basis of morphology and appearance during AL formation, seven major types of Mas-AT-immunoreactive (ir) cells could be distinguished. Mas-AT-ir cells are identified as local, projection, and centrifugal neurons, which are either persisting larval or newly added adult-specific neurons. Complementary immunostaining with antisera against two other neuropeptide families (A-type allatostatins, RFamides) revealed colocalization within three of the Mas-AT-ir cell types. On the basis of this neurochemistry, the most prominent type of Mas-AT-ir neurons, the local AT neurons (LATn), could be divided in three subpopulations. The appearance of the Mas-AT-ir cell types occurring during metamorphosis parallels the rising titer of the developmental hormone 20-hydroxyecdysone (20E). Artificially shifting the 20E titer to an earlier developmental time point resulted in the precocious occurrence of Mas-AT immunostaining. This result supports the hypothesis that the pupal rise of 20E is causative for Mas-AT expression during AL development. Comparing localization and developmental time course of Mas-AT and other neuropeptides with the time course of AL formation suggests various functions for these neuropeptides during development, including an involvement in the formation of the olfactory glomeruli.

Modified Ashworth Scale (MAS) Model based on Clinical Data Measurement towards Quantitative Evaluation of Upper Limb Spasticity

Science.gov (United States)

Puzi, A. Ahmad; Sidek, S. N.; Mat Rosly, H.; Daud, N.; Yusof, H. Md

2017-11-01

Spasticity is common symptom presented amongst people with sensorimotor disabilities. Imbalanced signals from the central nervous systems (CNS) which are composed of the brain and spinal cord to the muscles ultimately leading to the injury and death of motor neurons. In clinical practice, the therapist assesses muscle spasticity using a standard assessment tool like Modified Ashworth Scale (MAS), Modified Tardiue Scale (MTS) or Fugl-Meyer Assessment (FMA). This is done subjectively based on the experience and perception of the therapist subjected to the patient fatigue level and body posture. However, the inconsistency in the assessment is prevalent and could affect the efficacy of the rehabilitation process. Thus, the aim of this paper is to describe the methodology of data collection and the quantitative model of MAS developed to satisfy its description. Two subjects with MAS of 2 and 3 spasticity levels were involved in the clinical data measurement. Their level of spasticity was verified by expert therapist using current practice. Data collection was established using mechanical system equipped with data acquisition system and LABVIEW software. The procedure engaged repeated series of flexion of the affected arm that was moved against the platform using a lever mechanism and performed by the therapist. The data was then analyzed to investigate the characteristics of spasticity signal in correspondence to the MAS description. Experimental results revealed that the methodology used to quantify spasticity satisfied the MAS tool requirement according to the description. Therefore, the result is crucial and useful towards the development of formal spasticity quantification model.

1H HR-MAS NMR and S180 cells: metabolite assignment and evaluation of pulse sequence

International Nuclear Information System (INIS)

Oliveira, Aline L. de; Martinelli, Bruno César B.; Lião, Luciano M.; Pereira, Flávia C.; Silveira-Lacerda, Elisangela P.; Alcantara, Glaucia B.

2014-01-01

High resolution magic angle spinning 1 H nuclear magnetic resonance spectroscopy (HR-MAS NMR) is a useful technique for evaluation of intact cells and tissues. However, optimal NMR parameters are crucial in obtaining reliable results. To identify the key steps for the optimization of HR-MAS NMR parameters, we assessed different pulse sequences and NMR parameters using sarcoma 180 (S180) cells. A complete assignment of the metabolites of S180 is given to assist future studies. (author)

¿Cómo se traduce el curriculum formal en una experiencia escolar relevante para los alumnos de una escuela telesecundaria de México?

Directory of Open Access Journals (Sweden)

José de la luz Sánchez Tepatzi

2011-01-01

Full Text Available En este artículo se presenta parte de los resultados obtenidos en una investigación realizada entre los años 2009 y 2010 en una comunidad rural en México donde participaron 12 personas que abandonaron la escuela tele-secundaria. El estudio es de tipo cualitativo y las principales herramientas para obtener la información fueron la historia de vida y la entrevista abierta. La pregunta que orienta este artículo analiza las formas en cómo los alumnos traducen el curriculum formal en una experiencia escolar relevante y cómo influye tal significado en la permanencia. Los principales resultados señalan que la relación profesor-alumno, el trato entre pares y el apoyo de la familia, son elementos importantes para mejorar la permanencia y la calidad de los aprendizajes, así como para otorgar significado relevante a esa experiencia. En las conclusiones del estudio se muestra que el valor positivo hacia la escuela y la relevancia de la experiencia escolar, no son elementos suficientes para garantizar la permanencia, pues en esa decisión intervienen otros factores y razonamientos particulares. Es decir, cada alumno, en su mundo de vida construye un sentido de la realidad y este es el que orienta sus decisiones; una de ellas es permanecer o retirarse de la escuela. En este marco de relativa autonomía, los profesores estamos obligados a ofrecer a los alumnos la oportunidad de vivir una experiencia escolar relevante que les permita desenvolverse en un mundo complejo y aprender a lo largo de la vida, más allá de su condición y disposición para permanecer en la escuela.

Radiofrequency fields in MAS solid state NMR probes

Science.gov (United States)

Tošner, Zdeněk; Purea, Armin; Struppe, Jochem O.; Wegner, Sebastian; Engelke, Frank; Glaser, Steffen J.; Reif, Bernd

2017-11-01

We present a detailed analysis of the radiofrequency (RF) field over full volume of a rotor that is generated in a solenoid coil. On top of the usually considered static distribution of amplitudes along the coil axis we describe dynamic radial RF inhomogeneities induced by sample rotation. During magic angle spinning (MAS), the mechanical rotation of the sample about the magic angle, a spin packet travels through areas of different RF fields and experiences periodical modulations of both the RF amplitude and the phase. These modulations become particularly severe at the end regions of the coil where the relative RF amplitude varies up to ±25% and the RF phase changes within ±30°. Using extensive numerical simulations we demonstrate effects of RF inhomogeneity on pulse calibration and for the ramped CP experiment performed at a wide range of MAS rates. In addition, we review various methods to map RF fields using a B0 gradient along the sample (rotor axis) for imaging purposes. Under such a gradient, a nutation experiment provides directly the RF amplitude distribution, a cross polarization experiment images the correlation of the RF fields on the two channels according to the Hartmann-Hahn matching condition, while a spin-lock experiment allows to calibrate the RF amplitude employing the rotary resonance recoupling condition. Knowledge of the RF field distribution in a coil provides key to understand its effects on performance of a pulse sequence at the spectrometer and enables to set robustness requirements in the experimental design.

Banku reklāmas stratēģiju un valsts ekonomiskā stāvokļa mijiedarbība

OpenAIRE

Vernere, Elīna

2009-01-01

Darba tēma ir banku reklāmas stratēģiju un valsts ekonomiskā stāvokļa mijiedarbība. Galvenais pētījuma mērķis bija izprast, kā pašreizējā valsts ekonomiskā situācija izmainījusi sabiedrības vajadzības, pieprasījumu pēc banku pakalpojumiem un līdz ar to arī banku komunikāciju ar saviem klientiem ar vides reklāmas ziņojumu palīdzību. Galvenais pētījuma uzsvars tika likts uz reklāmas ziņojumu emocionālajiem un racionālajiem aspektiem. Papildus veiktajam pētījumam tika apskatīta arī reklāmas teor...

Factores relevantes del desarrollo profesional y de compensaciones en la carrera laboral del trabajador

Directory of Open Access Journals (Sweden)

Sergio Manuel Madero Gómez

2010-01-01

Full Text Available En la actualidad el desarrollo profesional y las compensaciones son temas relevantes dentro de la administración del personal en las empresas; por ello, en esta investigación se ha analizado un conjunto de 27 factores, que están relacionados con las áreas de recursos humanos, para poder conocer la importancia que tienen en la carrera laboral de las personas. Se recolectaron 348 cuestionarios mediante una encuesta electrónica, utilizando el software NCSS para su análisis. Entre los principales resultados destaca que los factores más sobresalientes en la carrera laboral para las mujeres mexicanas son el nivel educativo, las habilidades de comunicación y el apoyo familiar; mientras que para las mujeres estadounidenses son las habilidades para equilibrar su vida profesional y familiar, habilidades interpersonales y habilidades de comunicación.

Le Kāmasūtra et la « pulsion shastrique » en Inde

OpenAIRE

Naudou, Elizabeth

2013-01-01

Le mot « shastrique » fait référence au traité (śāstra) d’où sont issus les Kāmasūtra, (plus généralement appelé le Kāmasūtra), « aphorismes sur l’amour » : le Kāmaśāstra, « traité sur l’amour ». Qui dit śāstra, dit, en Inde, exposé religieux ou scientifique, d’où l’expression « pulsion shastrique » que l’on pourrait rendre par « pulsion encyclopédique énumérative et classificatoire ». Le but de cet exposé est de replacer le texte dans cette structure mentale typiquement indienne, qui reflète...

Utilization of the computational technic for the promotion and diffusion of the energy conservation practice; Utilizacion de tecnicas computacionales para promocionar y difundir el ahorro de energia

Energy Technology Data Exchange (ETDEWEB)

Kemper Valverde, N. [Laboratorio de Inteligencia Artificial, Instituto de Ingenieria, UNAM, Mexico D. F. (Mexico)

1995-12-31

In this paper are presented the developments obtained through the application of the new computational technologies in the diffusion and promotion tasks of energy efficient use and conservation. The most relevant aspects are described of three multimedia courses that were designed in order to increase the possibilities of offering personal training in efficient energy technic, as well as to have on hand totally open consulting and interactive tools. The courses that are described are: ``Design of Energy Conservation Programs for the Industry``, ``Energy Conservation in Combustion Equipment`` and ``Energy Cogeneration Technologies.`` On another subject, an analysis is also made of the possibilities for the development and application of expert systems that advise and give support to the work of technicians and engineers dedicated to energy conservation. The main characteristics of an expert system to give support to the energy analysis of lighting industrial systems, malls, buildings and hotels are also described. [Espanol] En este trabajo se presentan los desarrollos obtenidos por la aplicacion de las tareas de difusion y promocion del uso eficiente y ahorro de energia. Se describen los aspectos mas relevantes de tres cursos multimedia que fueron disenados con el objeto de incrementar las posibilidades de brindar capacitacion individualizada en tecnicas energeticas eficientes, asi como de contar con herramientas de consulta totalmente abiertas e interactivas. Los cursos que se describen son: ``Diseno de Programas de Ahorro de Energia en la Industria,`` ``Ahorro de Energia en Equipos de Combustion`` y ``Tecnologias de Cogeneracion de Energia.`` Por otro lado, tambien se hace un analisis de las posibilidades para el desarrollo y aplicacion de sistemas expertos que asesoren y apoyen el trabajo de tecnicos e ingenieros dedicados al ahorro de energia. Se describen las caracteristicas principales de un sistema experto disenado para brindar apoyo en analisis energeticos

Utilization of the computational technic for the promotion and diffusion of the energy conservation practice; Utilizacion de tecnicas computacionales para promocionar y difundir el ahorro de energia

Energy Technology Data Exchange (ETDEWEB)

Kemper Valverde, N [Laboratorio de Inteligencia Artificial, Instituto de Ingenieria, UNAM, Mexico D. F. (Mexico)

1996-12-31

In this paper are presented the developments obtained through the application of the new computational technologies in the diffusion and promotion tasks of energy efficient use and conservation. The most relevant aspects are described of three multimedia courses that were designed in order to increase the possibilities of offering personal training in efficient energy technic, as well as to have on hand totally open consulting and interactive tools. The courses that are described are: ``Design of Energy Conservation Programs for the Industry``, ``Energy Conservation in Combustion Equipment`` and ``Energy Cogeneration Technologies.`` On another subject, an analysis is also made of the possibilities for the development and application of expert systems that advise and give support to the work of technicians and engineers dedicated to energy conservation. The main characteristics of an expert system to give support to the energy analysis of lighting industrial systems, malls, buildings and hotels are also described. [Espanol] En este trabajo se presentan los desarrollos obtenidos por la aplicacion de las tareas de difusion y promocion del uso eficiente y ahorro de energia. Se describen los aspectos mas relevantes de tres cursos multimedia que fueron disenados con el objeto de incrementar las posibilidades de brindar capacitacion individualizada en tecnicas energeticas eficientes, asi como de contar con herramientas de consulta totalmente abiertas e interactivas. Los cursos que se describen son: ``Diseno de Programas de Ahorro de Energia en la Industria,`` ``Ahorro de Energia en Equipos de Combustion`` y ``Tecnologias de Cogeneracion de Energia.`` Por otro lado, tambien se hace un analisis de las posibilidades para el desarrollo y aplicacion de sistemas expertos que asesoren y apoyen el trabajo de tecnicos e ingenieros dedicados al ahorro de energia. Se describen las caracteristicas principales de un sistema experto disenado para brindar apoyo en analisis energeticos

EVALUASI DAYA TAHAN IKAN MAS HASIL SELEKSI BERDASARKAN MARKA MOLEKULER MHC-II TERHADAP INFEKSI KOI HERPES VIRUS

Directory of Open Access Journals (Sweden)

Erma Primanita Hayuningtyas

2015-03-01

mengevaluasi daya tahan benih ikan mas F-1 terseleksi terhadap infeksi KHV melalui uji tantang. Sebagai pembanding, digunakan ikan mas populasi benih F-1 non-seleksi dan populasi benih ikan mas dari unit pembenihan rakyat (UPR. Ikan uji berupa benih ikan mas Rajadanu berumur dua bulan dengan bobot ratarata 5,5±0,5 g. Jumlah benih pada masing-masing wadah perlakuan sebanyak 30 ekor dengan tiga kali pengulangan. Wadah pengujian berupa akuarium berukuran 40 cm x 60 cm x 40 cm dengan kepadatan 1 ekor/L. Parameter yang diamati adalah sintasan, deteksi KHV, analisis ekspresi gen MHC-II, dan gambaran darah ikan. Hasil penelitian menunjukkan bahwa populasi benih F-1 terseleksi memiliki daya tahan lebih baik dengan sintasan 93,33% dibandingkan populasi benih F-1 non-seleksi sebesar 85,55% dan populasi benih dari UPR sebesar 81,11%. Daya tahan yang tinggi pada populasi benih F-1 terseleksi didukung oleh hasil deteksi KHV yang negatif dan ersentase jumlah limfosit yang lebih tinggi sebesar 91,67%; serta rendahnya persentase monosit dan heterofil, selain itu, tidak adanya eosinofil dan basofil. Ekspresi gen MHC-II terdeteksi pada berbagai organ, ekspresi tertinggi ditemukan pada organ limpa.

In situ high temperature MAS NMR study of the mechanisms of catalysis. Ethane aromatization on Zn-modified zeolite BEA.

Science.gov (United States)

Arzumanov, Sergei S; Gabrienko, Anton A; Freude, Dieter; Stepanov, Alexander G

2009-04-01

Ethane conversion into aromatic hydrocarbons over Zn-modified zeolite BEA has been analyzed by high-temperature MAS NMR spectroscopy. Information about intermediates (Zn-ethyl species) and reaction products (mainly toluene and methane), which were formed under the conditions of a batch reactor, was obtained by (13)C MAS NMR. Kinetics of the reaction, which was monitored by (1)H MAS NMR in situ at the temperature of 573K, provided information about the reaction mechanism. Simulation of the experimental kinetics within the frames of the possible kinetic schemes of the reaction demonstrates that a large amount of methane evolved under ethane aromatization arises from the stage of direct ethane hydrogenolysis.

Chemical profile of beans cultivars (Phaseolus vulgaris) by 1H NMR - high resolution magic angle spinning (HR-MAS);Perfil quimico de cultivares de feijao (Phaseolus vulgaris) pela tecnica de high resolution magic angle spinning (HR-MAS)

Energy Technology Data Exchange (ETDEWEB)

Liao, Luciano Morais; Choze, Rafael; Cavalcante, Pedro Paulo Araujo; Santos, Suzana da Costa; Ferri, Pedro Henrique, E-mail: luciano@quimica.ufg.b [Universidade Federal de Goias (UFG), Goiania, GO (Brazil). Inst. de Quimica; Ferreira, Antonio Gilberto [Universidade Federal de Sao Carlos (UFScar), SP (Brazil). Dept. de Quimica

2010-07-01

The application of one-dimensional proton high-resolution magic angle spinning ({sup 1}H HR-MAS) NMR combined with a typical advantages of solid and liquid-state NMR techniques was used as input variables for the multivariate statistical analysis. In this paper, different cultivars of beans (Phaseolus vulgaris) developed and in development by EMBRAPA - Arroz e Feijao were analyzed by {sup 1}H HR-MAS, which have been demonstrated to be a valuable tool in its differentiation according chemical composition and avoid the manipulation of the samples as used in other techniques. (author)

El medievalismo fértil de Paloma Díaz-Mas

Directory of Open Access Journals (Sweden)

Rafael M. Mérida Jiménez

2001-01-01

Full Text Available The author of this article is concerned with trying to understand why Paloma Díaz-Mas, the writer of such an excellent novel as La tierra fértil (1999, has not received much critical attention. He underlines three main reasons. First, she does not live in Madrid or Barcelona and so she is far away from the main centres of cultural power. Second, she teaches Spanish literature in the Basque Country, a political and linguistic community which significantly differs from that of many other writers. Third, she writes historical novels, which does not appear to be very fashionable in Spain these days. Moreover, Díaz-Mas is a woman writer who does not make use of the most commonly available feminine patterns, and she does not seem to offer a model easy to include in a given feminist methodology either. However, Mérida-Jiménez argues that Paloma provides an intelligent deconstruction of “male authority” through subtle rhetorical means, as well as a representation of the weakness of his “domination” in very innovative ways, such as those derived from the dialectics between history and fiction, centrality and marginality, heterosexuality and homosexuality, individual and society, dream and reason or tradition and modernity.

{sup 1}H HR-MAS NMR and S180 cells: metabolite assignment and evaluation of pulse sequence

Energy Technology Data Exchange (ETDEWEB)

Oliveira, Aline L. de; Martinelli, Bruno César B.; Lião, Luciano M. [Universidade Federal de Goiás (UFG), Goiânia, GO (Brazil). Instituto de Química. Lab. de RMN; Pereira, Flávia C.; Silveira-Lacerda, Elisangela P. [Universidade Federal de Goiás (UFG), Goiânia, GO (Brazil). Instituto de Ciências Biológicas. Laboratório Genética Molecular e Citogenética; Alcantara, Glaucia B., E-mail: glaucia.alcantara@ufms.br [Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande, MS (Brazil). Inst. de Química

2014-07-01

High resolution magic angle spinning {sup 1}H nuclear magnetic resonance spectroscopy (HR-MAS NMR) is a useful technique for evaluation of intact cells and tissues. However, optimal NMR parameters are crucial in obtaining reliable results. To identify the key steps for the optimization of HR-MAS NMR parameters, we assessed different pulse sequences and NMR parameters using sarcoma 180 (S180) cells. A complete assignment of the metabolites of S180 is given to assist future studies. (author)

CONCEPTUALIZACIÓN Y ANÁLISIS DE UN SISTEMA MULTI-AGENTE PEDAGÓGICO UTILIZANDO LA METODOLOGÍA MAS-COMMONKADS

Directory of Open Access Journals (Sweden)

JOVANI ALBERTO JIMÉNEZ BUILES

2009-01-01

Full Text Available En este artículo se presentan la conceptualización y el análisis de un sistema multi-agente (MAS pedagógico utilizando la metodología MAS-CommonKADS; la cual es una de las más reconocidaspara el modelado de MAS. El propósito de la fase de conceptualización es comprender el problema, identificar los actores activos y pasivo, además de elaborar los requisitos que permitan formular unos objetivos para generar la solución. En la fase de análisis se definen los modelos de agente, tareas, coordinación, comunicación, organizacióny experiencia (conocimientos. Ambas fases fueron validadas mediante la construcción del ambiente multi agente pedagógico ALLEGRO.

Deuterium and lithium-6 MAS NMR studies of manganese oxide electrode materials

Science.gov (United States)

Paik, Younkee

Electrolytic manganese dioxide (EMD) is used world wide as the cathode materials in both lithium and alkaline primary (non-rechargeable) batteries. We have developed deuterium and lithium MAS NMR techniques to study EMD and related manganese oxides and hydroxides, where diffraction techniques are of limited value due to a highly defective nature of the structures. Deuterons in EMD, manganite, groutite, and deuterium-intercalated pyrolusite and ramsdellite were detected by NMR, for the first time, and their locations and motions in the structures were analyzed by applying variable temperature NMR techniques. Discharge mechanisms of EMD in alkaline (aqueous) electrolytes were studied, in conjunction with step potential electrochemical spectroscopic (SPECS) method, and five distinctive discharge processes were proposed. EMD is usually heat-treated at about 300--400°C to remove water to be used in lithium batteries. Details of the effects of heat-treatment, such as structural and compositional changes as a function of heat-treatment temperature, were studied by a combination of MAS NMR, XRD, and thermogravimetric analysis. Lithium local environments in heat-treated EMD (HEMD) that were discharged in lithium cells, were described in terms of related environments found in model compounds pyrolusite and ramsdellite where specific Li + sites were detected by MAS NMR and the hyperfine shift scale method of Grey et al. Acid-leaching of Li2MnO3 represents an approach for synthesizing new or modified manganese oxide electrode materials for lithium rechargeable batteries. Progressive removal of lithium from specific crystallographic sites, followed by a gradual change of the crystal structure, was monitored by a combination of NMR and XRD techniques.

El Proyecto Sismico "LARSE" - Trabajando Hacia un Futuro con Mas Seguridad para Los Angeles

Science.gov (United States)

Henyey, Thomas L.; Fuis, Gary S.; Benthien, Mark L.; Burdette, Thomas R.; Christofferson, Shari A.; Clayton, Robert W.; Criley, Edward E.; Davis, Paul M.; Hendley, James W.; Kohler, Monica D.; Lutter, William J.; McRaney, John K.; Murphy, Janice M.; Okaya, David A.; Ryberg, Trond; Simila, Gerald W.; Stauffer, Peter H.

1999-01-01

La region de Los Angeles contiene una red de fallas activas, incluyendo muchas fallas por empuje que son profundas y no rompen la superficie de la tierra. Estas fallas ocultas incluyen la falla anteriormente desconocida que fue responsable por la devastacion que ocurrio durante el terremoto de Northridge en enero de 1994, el terremoto mas costoso en la historia de los Estados Unidos. El Experimento Sismico en la Region de Los Angeles (Los Angeles Region Seismic Experiment, LARSE), esta localizando los peligros ocultos de los terremotos debajo de la region de Los Angeles para mejorar la construccion de las estructuras que pueden apoyar terremotos que son inevitables en el futuro, y que ayudaran a los cientificos determinar donde occurira el sacudimento mas fuerte y poderoso.

DECLÍNIO EM PEQUENAS EMPRESAS: ABORDAGENS E TRABALHOS RELEVANTES

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Luiz Antonio de Camargo Guerrazzi

Full Text Available RESUMO As pequenas empresas por seu relevante papel socioeconômico têm despertado crescente interesse da academia. Altas taxas de mortalidade associados às pequenas empresas têm sido objeto de pesquisas que investigam causas e fatores desencadeadores do declínio organizacional, fenômeno que antecede à morte da empresa. Neste artigo foi realizado um estudo bibliométrico em nove periódicos líderes na pesquisa em pequenas empresas, para obter uma visão geral e estrutural do conhecimento acumulado. Foi obtida uma amostra de 449 artigos relacionados ao declínio publicados entre 1989 e 2014. O método empregado permitiu a análise dos autores mais prolíficos, citações e obras com maior impacto, cocitações para entender a estrutura intelectual do campo e temas pesquisados para entender o foco da pesquisa. Foram empregadas técnicas de análise multivariada de dados como a análise fatorial exploratória e o escalonamento multidimensional (MDS. Foram identificados quatro principais temas pesquisados entrelaçando causas internas e externas como causadoras do declínio: empreendedorismo; administração estratégica e desempenho; inovação e evolução; liabilities (ameaças e ambiente. Este estudo indica que o declínio é desencadeado pela interação de causas internas e externas às empresas, fazendo um contraponto às pesquisas existentes que abordam ora umas ora outras e não estabelecem uma relação entre elas. Contribui para a academia com as bases sobre as quais novas pesquisas podem ser desenvolvidas e para a prática gerencial uma vez que identifica as causas do declínio e possibilita a tomada de decisões para neutralizá-las.

An Analysis of the Rise and Fall of the AA-MAS Policy

Science.gov (United States)

Lazarus, Sheryl S.; Thurlow, Martha L.; Ysseldyke, James E.; Edwards, Lynn M.

2015-01-01

In 2005, to address concerns about students who might fall in the "gap" between the regular assessment and the alternate assessment based on alternate achievement standards (AA-AAS), the U.S. Department of Education announced that states could develop alternate assessments based on modified achievement standards (AA-MAS). This article…

Microscopic structural analysis of fractured silk fibers from Bombyx mori and Samia cynthia ricini using 13C CP/MAS NMR with a 1 mm microcoil MAS NMR probehead

KAUST Repository

Yamauchi, Kazuo

2010-07-01

Conformational changes have been studied in silk fibers from the domestic silkworm Bombyx mori and a wild silkworm Samia cynthia ricini as a result of fractured by stretching. About 300 samples consisting of only the fractured regions of [1-13C]Ala or [1-13C]Gly labeled silk fibers were collected and observed by 13C CP/MAS NMR spectra. The total amount of these fractured fibers is only about 1 mg and therefore we used a home-built 1 mm microcoil MAS NMR probehead. A very small increase in the fraction of random coil was noted for the alanine regions of both silk fibroins and for the glycine region of B. mori silk fibroin. However, there is no difference in the spectra before and after fractured for the glycine region of S. c. ricini silk fibroin. Thus, the influence of fracture occurs exclusively at the Ala region for S. c. ricini. The relationship between sequence, fracture and structure is discussed. © 2010 Elsevier Inc. All rights reserved.

77 FR 43084 - Multiple Award Schedule (MAS) Program Continuous Open Season-Operational Change

Science.gov (United States)

2012-07-23

... (GSA), Federal Acquisition Service (FAS) intends to institute a Demand Based Model (DBM) designed to... will restore and maintain the MAS program's value to Federal agencies as a streamlined acquisition... adding innovative solutions, improving pricing and simplifying the buying experience. DATES: This change...

Personālā datora sistēmas bloka vides snieguma novērtējums un ekodizaina analīze

OpenAIRE

Šteina, Māra

2009-01-01

Maģistra darba „Personālā datora sistēmas bloka vides snieguma novērtējums un ekodizaina analīze” pamatā ir biroja datora sistēmas bloka ietekmes uz vidi novērtējums visā tā dzīves cikla laikā, izvērtējot arī lietotāju un iesaistīto pušu nozīmi. Darbs sastāv no divām daļām – teorētiskās un praktiskās. Pirmā daļa ir teorētiskajā daļa, kurā autore apskatīja pieejamos literatūras avotus un citu autoru darbus, izvērtējot tēmas aktualitāti, galvenās problēmas un to risinājumus. Otrā daļa ...

A gerontologia e a interdisciplinaridade: aspectos relevantes para a enfermagem La gerontología e interdisciplinaridade: los aspectos relevantes para la enfermería Gerontology and interdisciplinarity: relevant aspects to nursing

Directory of Open Access Journals (Sweden)

Alessandra Conceição Leite Funchal Camacho

2002-04-01

Full Text Available Este artigo retrata a Gerontologia como área rica e cheia de lacunas a serem preenchidas pelas disciplinas que a compõem, indo além das abordagens convencionais à clientela idosa, visando a caminhos renovados para a Enfermagem, que, dentre tantas disciplinas, também está no processo construtivo de conhecimento. Tem como objetivo destacar a importância da Gerontologia para a atuação interdisciplinar, principalmente para Enfermagem, ressaltando o cliente idoso no contexto social. A interdisciplinaridade é instrumento condutor para Gerontologia em busca de mudanças que venham a somar conhecimentos e redundar em esforços no processo de desenvolvimento da área da saúde em relação ao cliente idoso e às diversas disciplinas que contemplam uma atuação relevante que, sem dúvida, permitem avanços para a Enfermagem.Este artículo retrata la Gerontología como área rica y llena de lagunas para ser resueltas por las disciplinas que la componen, yendo más allá de los abordajes convencionales a la población anciana, buscando caminos renovados para enfermería, que dentro de tantas disciplinas, también está en el proceso constructivo del conocimiento. Tiene como objetivo destacar la importancia de la gerontología para la actuación interdisciplinaria, principalmente para enfermería, resaltando al paciente anciano en el contexto social. La interdisciplinariedad La interdisciplinariedad es instrumento conductor para la Gerontología en busca de cambios que vengan a agregar conocimientos que redunden en esfuerzos para el proceso de desarrollo del área de la salud en relación con el cliente anciano, y las diversas disciplinas que contemplan una actuación relevante que, sin duda, permitan avances para enfermería.This article shows Gerontology as a rich area and full of gaps to be filled by the disciplines that form it, going beyond the conventional approaches to the elderly client and aiming at finding new Nursing paths as, among

Ceļu satiksmes drošības direkcijas (CSDD) sociālo reklāmas kampaņu klipu semiotiskā analīze (2003. - 2013.)

OpenAIRE

Lapinska, Ginta

2014-01-01

Bakalaura darba tēma ir „Ceļu satiksmes drošības direkcijas (CSDD) sociālo reklāmas kampaņu klipu semiotiskā analīze (2003. - 2013.)”. CSDD reklāmas gadu gaitā ir pārliecinājušas reklāmas industriju un auditoriju, tāpēc būtiski ir noskaidrot, kādi ir izmantotie semiotiskie elementi un kā to izmantojums gadu gaitā ir mainījies. Darba mērķis ir izpētīt vienojošos semiotiskos elementus CSDD reklāmas kampaņu klipos no 2003.-2013. gadam. Teorētiskajā daļā aplūkotas tēmas: reklāmas, kampaņas ...

Who bears the burden of international taxation? Evidence from cross-border M&As

NARCIS (Netherlands)

Huizinga, H.P.; Voget, J.; Wagner, W.B.

2012-01-01

Cross-border M&As can trigger additional taxation of the target's income in the form of non-resident dividend withholding taxes and acquirer-country corporate income taxation. This paper finds that this additional international taxation is fully capitalized into lower takeover premiums. In contrast,

TOKSISITAS LETAL MOLUSKISIDA NIKLOSAMIDA PADA BENIH IKAN MAS (Cyprinus carpio

Directory of Open Access Journals (Sweden)

Yosmaniar Yosmaniar

2009-04-01

Full Text Available Penggunaan moluskisida untuk menanggulangi hama dalam budidaya tanaman padi yang semakin meningkat berpotensi mencemari lingkungan perairan, karena mengandung residu dari bahan aktifnya. Moluskisida niklosamida (C13H8Cl2N2O4 merupakan bahan aktif pestisida yang digunakan untuk memberantas hama keong mas atau siput murbei (Pomacea sp. di sawah. Dengan demikian, bahan tersebut memiliki potensi untuk mencemari lahan tempat usaha budidaya ikan. Penelitian ini bertujuan untuk mengetahui potensi toksisitas akut niklosamida terhadap benih ikan mas (Cyprinus carpio yang ditunjukkan oleh nilai Median Lethal Concentration (LC50 24, 48, dan 96 jam. Penelitian dilakukan di Instalasi Riset Lingkungan Perikanan Budidaya dan Toksikologi, Cibalagung-Bogor. Menggunakan ikan mas dengan bobot individu 2,47 ± 0,13 g. Moluskisida yang digunakan mengandung bahan aktif niklosamida 250g/L. Wadah pengujian berupa 21 unit akuarium kaca berukuran 40 cm x 20 cm x 20 cm yang dilengkapi aerasi serta saluran pemasukan dan pengeluaran. Jumlah ikan uji setiap wadah 10 ekor dengan peubah yang diukur adalah mortalitas ikan. Selama penelitian ikan tidak diberi makan. Tahapan penelitian terdiri atas penentuan nilai ambang atas-bawah, nilai lethal time dan LC50 -24, 48, 72, dan 96 jam. Data diolah dengan analisis probit program LC50. Hasil penelitian menunjukkan bahwa nilai LC50-24, 48, 72, dan 96 jam terhadap benih ikan mas adalah 0,8012 (0,7140—0,8990; 0,5999 (0,5356—0,6719; 0,4511 (0,4067—0,5004; dan 0,3849 mg/L (0,3684—0,4061. Hal ini menunjukkan niklosamida termasuk pestisida yang memiliki toksisitas sangat tinggi (golongan A. The use of molluscicide in aquatic as well as in terresterial agro ecosystem without properly controlled may produce detrimental effects on freshwater fisheries. Molluscicide utilization for golden apple snail (Pomacea sp. control in rice field has increased. The ingredient potencially has a possibility to pollute aquaculture water. The

Veikala „Dīvāni un Dīvāni” reklāmas analīze un pilnveidošanas iespējas.

OpenAIRE

Alsiņa, Madara

2013-01-01

Bakalaura darba tēma „Veikala „Dīvāni un Dīvāni” reklāmas analīze un pilnveidošanas iespējas”. Bakalaura darba mērķis ir, pamatojoties uz teorijā gūtajām atziņām par reklāmu, izanalizēt veikala „Dīvāni un Dīvāni” reklāmas pasākumus, to stiprās un vājās puses, novērtēt reklāmas komunikatīvo efektivitāti, kā arī izstrādāt priekšlikumus veikala „Dīvāni un Dīvāni” reklāmas pilnveidošanai. Pirmajā darba daļā tiek apskatīti reklāmas kā mārketinga komunikāciju elementa teorētiskie aspekti – ...

Plantando, colhendo, vendendo, mas não comendo: práticas alimentares e de trabalho associadas à obesidade em agricultores familiares do Bonfim, Petrópolis, RJ

Directory of Open Access Journals (Sweden)

Ana Eliza Port Lourenço

Full Text Available OBJETIVO: verificar a prevalência de obesidade entre adultos das 86 famílias agricultoras de um bairro de Petrópolis, RJ, e analisar seus determinantes socioculturais. MÉTODOS: estudo quantitativo e qualitativo sobre nutrição, práticas alimentares e de trabalho realizado em 2008. Dados antropométricos foram coletados por inquérito nutricional domiciliar e o material qualitativo por observação participante e entrevistas. RESULTADOS: a prevalência de obesidade foi baixa (9,3% entre os homens, mas bastante elevada entre as mulheres (29,9%. A prática agrícola local implica em atividade física leve para mulheres e intensa para homens. Essa diferença não é acompanhada na dieta, semelhante para homens e mulheres, com predomínio de alimentos de alto valor calórico. A produção familiar objetiva essencialmente a venda. A agricultura mercantil e a decorrente especialização dos cultivos favorecem comprar alimentos no mercado em vez de produzir para autoconsumo. CONCLUSÃO: os aspectos socioculturais e ocupacionais estudados podem ter contribuído para elevar a prevalência de obesidade nas mulheres e podem ser úteis no estudo de outros grupos com características semelhantes. Esta pesquisa ratifica a importância de estudar a obesidade em nível local, integrando abordagens quantitativas e qualitativas para identificar possíveis limitações e portas de entrada para ações de intervenção localmente relevantes.

Klientu attiecību pārvaldības sistēmas izveide autoservisam

OpenAIRE

Jaunzems, Ģirts

2012-01-01

Diplomdarba tēma ir Klientu attiecību pārvaldības sistēmas izveide autoservisam. Tā mērķis ir izstrādāt un ieviest pielāgotu klientu attiecību pārvaldības sistēmu nelielam autoservisam, tādējādi atvieglojot klientu un viņu darbības vēstures uzskaiti. Lai sasniegtu diplomdarba mērķi, darba autors izpētīja teorētiskos informācijas avotus, salīdzināja divas klientu pārvaldības sistēmas, kā arī izstrādāja sistēmu konkrētam uzņēmumam, veicot arī tās izmaksu analīzi. Diplomdarbā ir secināts, ...

KEBIJAKAN INVESTASI ASING BIDANG PERTAMBANGAN DI KABUPATEN POHUWATO PROVINSI GORONTALO KEBIJAKAN INVESTASI ASING BIDANG PERTAMBANGAN DI KABUPATEN POHUWATO PROVINSI GORONTALO KEBIJAKAN INVESTASI ASING BIDANG PERTAMBANGAN DI KABUPATEN POHUWATO PROVINSI GORONTALO KASUS PT. PANI DHARMA MAS KASUS PT. PANI DHARMA MAS KASUS PT. PANI DHARMA MAS

OpenAIRE

PUYO, AJENG MAWADDAH PUYO AJENG MAWADDAH PUYO AJENG MAWADDAH

2016-01-01

2016 AJENG MAWADDAH PUYO, E 131 12 003, "Kebijakan Investasi Asing Dalam Bidang Pertambangan di Kabupaten Pohuwato Provinsi Gorontalo Kasus PT. Pani Dharma MAS", dibawah bimbingan Dr. H. Adi Suryadi B., MA selaku pembimbing I dan Pusparida Syahdan. S.sos., MSI, Departemen Ilmu Hubungan internasional, Fakultas Ilmu Sosial dan Ilmu Politik, Universitas Hasanuddin. Penelitian ini bertujuan untuk mengetahui peran stakeholders dalam perumusan kebijakan investasi asing da...

Acceptance Test Report for the Modular Automation System (MAS) Manufactured by Honeywell Inc

International Nuclear Information System (INIS)

ANDERSON, D.L.

2000-01-01

This document details the performance of the acceptance test of the Honeywell MAS Control System for equipment to be installed in gloveboxes HA-20MB and HA-211 at a later date. Equipment that was anticipated included 6 stabilization furnaces, only three and their associated equipment were installed

Identificación de indicadores relevantes del desempeño rse mediante la utilización de técnicas multicriterio

Directory of Open Access Journals (Sweden)

Marta de la Cuesta González

2015-01-01

Full Text Available Uno de los principios básicos de la gestión e información reportada en materia de Responsabilidad Social Empresarial (RSE es que se centre en los aspectos relevantes para la sociedad. Adicionalmente, la necesidad de realizar comparaciones entre empresas exige un esfuerzo sintetizador en la rendición de cuentas en RSE. Este trabajo se centra en la aplicación de técnicas de decisión multicriterio, concretamente procesos analíticos jerárquicos, para ofrecer una herramienta que permita medir el desempeño de RSE, con base en aquellos aspectos que son relevantes y materiales para empresas y stakeholders conjuntamente, en un contexto y sociedad determinados. El artículo explica cómo se aplicó la metodología de proceso de análisis jerárquico a una muestra de 10 sujetos (6 empresas españolas y 4 organizaciones de la sociedad civil española en la selección de los indicadores materiales en el reporte de RSE y los resultados alcanzados. Se identificaron 60 indicadores distribuidos en cuatro dimensiones: medioambiente, economía, gobierno corporativo y social. Esta última dimensión concentra el mayor número de indicadores y mezcla impactos sobre diferentes grupos de interés, por lo que es dividida en cuatro subdimensiones (recursos humanos, derechos humanos, responsabilidad del producto y sociedad, con el objeto de discernir con mayor detalle su complejidad.

Effectiveness of FitoMas-E in the cultivation of chickpea under two soil moisture levels

Directory of Open Access Journals (Sweden)

Yanitza Meriño Hernández

2018-01-01

Full Text Available To evaluate the effect of FitoMas-E on the performance of the chickpea, in conditions of drought stress, was the objective of this investigation. An experiment was conducted in the Intensive Garden "Río de Guisa" in the municipality of Guisa during the period from November to February 2014. Four treatments were applied, distributed in a randomized block design with three repetitions, on a "Pardo mullido grisaceo" soil, comparing the application of FitoMas-E under two soil moisture regimes, with and without water stress. The yield of grain and its components were evaluated at the time of harvest maturity, to analyze the responses of these variables to the treatments applied. An analysis of variance was performed using the statistical package STASTISTICA version 8.0 for Windows and the means of the treatments were compared using the Tukey Multiple Range test. The variables that showed a greater response to the treatments imposed were the number of legumes per plant, number of seeds per plant, the mass of 100 seeds and the yield of grain, which ranged between 0.9 and 0.93 t ha-1 for the treatments 2 and 4 respectively. The results obtained in this research showed that the chickpea crop achieved the best productive indicators when the plants were under water stress conditions and received the application of FitoMas-E.

Variable temperature 127I MAS NMR of β-AgI

International Nuclear Information System (INIS)

Wagner, G.W.

1991-01-01

Variable temperature 127 I MAS NMR of β-AgI powder, measured from 123 to 413 K is sensitive to Ag + diffusion through the iodine lattice. In low temperature spectra, the iodine ions appear to be in nearly static environments in agreement with the low temperature crystal structure. However, at higher temperatures, substantial broadening of the central transition linewidth is consistent with the presence of two types of Ag + diffusion with activation energies of 0.17 and 0.0080 eV. (author). 15 refs.; 5 figs.; 1 tab

REPERCUSIONES TERRITORIALES DE LA POLÍTICA AGRARIA COMUNITARIA SOBRE LAS ESTRUCTURAS AGRARIAS DEL ALTO Y MEDIO VINALOPÓ (ALICANTE

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Antonio M. Rico Amorós

1995-01-01

Full Text Available a política de estructuras agrarias de la Unión Europea, sometida ahora a un hondo proceso de reflexión y reforma, ha propiciado en el Alto y Medio Vinalo- pó una serie de repercusiones estructurales, productivas, y espaciales. Las pri- mas que regulan el arranque definitivo de superficies de viñedo, con más de 7.000 Has arrancadas hasta la actualidad constituyen su más relevante exponen- te, aunque no es el único ni mucho menos. Este trabajo persigue la identificación y evaluación de las líneas de ayuda comunitarias, estatales, y autonómicas, de efectos espaciales más relevantes, sometiendo los mismos a reflexión.

MAS-based Distributed Coordinated Control and Optimization in Microgrid and Microgrid Clusters: A Comprehensive Overview

DEFF Research Database (Denmark)

Han, Yang; Zhang, Ke; Hong, Li

2018-01-01

The increasing integration of the distributed renewable energy sources highlights the requirement to design various control strategies for microgrids (MGs) and microgrid clusters (MGCs). The multi-agent system (MAS)-based distributed coordinated control strategies shows the benefits to balance...... the power and energy, stabilize voltage and frequency, achieve economic and coordinated operation among the MGs and MGCs. However, the complex and diverse combinations of distributed generations in multi-agent system increase the complexity of system control and operation. In order to design the optimized...... configuration and control strategy using MAS, the topology models and mathematic models such as the graph topology model, non-cooperative game model, the genetic algorithm and particle swarm optimization algorithm are summarized. The merits and drawbacks of these control methods are compared. Moreover, since...

Food Waste Composting Study from Makanan Ringan Mas

Science.gov (United States)

Kadir, A. A.; Ismail, S. N. M.; Jamaludin, S. N.

2016-07-01

The poor management of municipal solid waste in Malaysia has worsened over the years especially on food waste. Food waste represents almost 60% of the total municipal solid waste disposed in the landfill. Composting is one of low cost alternative method to dispose the food waste. This study is conducted to compost the food waste generation in Makanan Ringan Mas, which is a medium scale industry in Parit Kuari Darat due to the lack knowledge and exposure of food waste recycling practice. The aim of this study is to identify the physical and chemical parameters of composting food waste from Makanan Ringan Mas. The physical parameters were tested for temperature and pH value and the chemical parameter are Nitrogen, Phosphorus and Potassium. In this study, backyard composting was conducted with 6 reactors. Tapioca peel was used as fermentation liquid and soil and coconut grated were used as the fermentation bed. Backyard composting was conducted with six reactors. The overall results from the study showed that the temperature of the reactors were within the range which are from 30° to 50°C. The result of this study revealed that all the reactors which contain processed food waste tend to produce pH value within the range of 5 to 6 which can be categorized as slightly acidic. Meanwhile, the reactors which contained raw food waste tend to produce pH value within the range of 7 to 8 which can be categorized as neutral. The highest NPK obtained is from Reactor B that process only raw food waste. The average value of Nitrogen is 48540 mg/L, Phosphorus is 410 mg/L and Potassium is 1550 mg/L. From the comparison with common chemical fertilizer, it shows that NPK value from the composting are much lower than NPK of the common chemical fertilizer. However, comparison with NPK of organic fertilizer shown only slightly difference value in NPK.

Characteristics of the Biological Effects and the RBE of High Energy Protons; Caracteristiques des Effets Biologiques et EBR des Protons de Haute Energie; Osobennosti biologicheskogo dejstviya i obeh protonov vysokikh ehnergii; Caracteristicas de los Efectos Biologicos y de la EBR de los Protones de Elevada Energia

Energy Technology Data Exchange (ETDEWEB)

Grigor' ev, Ju. G.; Darenskaja, N. G.; Domshlak, M. M.; Lebedinskij, A. V.; Nefedov, Ju. G.; Ryzhov, N. I.

1964-03-15

The characteristics of the biological effects of high-energy protons (120, 240 and 510 MeV) were studied in experiments on mice, rats and dogs. It was shown that together with a certain resemblance or identity in radiation damage due to the effects of X-rays and protons, there were certain differences in the case of proton irradiation. In the proton irradiation of dogs the haemorrhagic syndrome was more pronounced. Haemorrhage appeared earlier in the animals and was more abundant. A difference was found in proton RBE levels for small animals (rats, mice) and large animals (dogs). This difference is quite large and equals respectively 0.7 and 1.0 * 1.15. Some considerations are presented in the report on the cause of these differences. (author) [French] Les auteurs ont etudie les caracteristiques des effets biologiques des protons de haute energie (120, 240 et 510 MeV) au cours d'experiences sur des souris, des rats et des chiens. Ils montrent que si les dommages causes par les rayons X et les protons presentent une certaine ressemblance ou des caracteres identiques, on observe des differences dans le cas de l'irradiation par les protons. Chez les chiens exposes aux protons, le syndrome hemorragique etait plus prononce. L'hemorragie s'est manifestee plus tot chez ces animaux et etait plus abondante. Les auteurs ont decele une difference dans l*EBRdes protons pour les petits animaux (rats, souris) et pour les grands animaux (chiens). Cette difference etait importante: 0,7 dans le premier cas et de 1,0 a 1,15 dans le second cas. On trouve dans le memoire quelques considerations sur la cause de ces differences. (author) [Spanish] Los autores estudiaron las caracteristicas de los efectos biologicos de los protones de elevada energia (120, 240 y 510 MeV) mediante experimentos con ratones, ratas y perros. Comprobaron que a pesar de ciertas semejanzas en las radiolesiones causadas por los rayos X y los protones, los efectos de estos ultimos acusan algunas diferencias. El

The MAS Six Years in Power in Bolivia

Directory of Open Access Journals (Sweden)

Ton Salman

2012-04-01

Full Text Available Review Essay of:– The Rise of Evo Morales and the MAS, by Sven Harten. London/New York: Zed Books, 2011.– Evo Morales and the Movimiento al Socialismo in Bolivia; The First Term in Context, edited by Adrian J. Pearce. London, Institute for the Study of the Americas, 2011.– El estado de derecho como tiranía, by Luis Tapia. La Paz: CIDES/UMSA, 2011.– From Rebellion to Reform in Bolivia: Class Struggle, Indigenous Liberation and the Politics of Evo Morales, by Jeffery R. Webber. Chicago: Haymarket Books, 2011.– La democracia desde los márgenes: Transformaciones en el campo político boliviano, by María Teresa Zegada, with Claudia Arce, Gabriela Canedo and Alber Quispe. La Paz: Muela del Diablo Editores/CLACSO, 2011.

Multi-Robot Remote Interaction with FS-MAS

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Yunliang Jiang

2013-02-01

Full Text Available The need to reduce bandwidth, improve productivity, autonomy and the scalability in multi-robot teleoperation has been recognized for a long time. In this article we propose a novel finite state machine mobile agent based on the network interaction service model, namely FS-MAS. This model consists of three finite state machines, namely the Finite State Mobile Agent (FS-Agent, which is the basic service module. The Service Content Finite State Machine (Content-FS, using the XML language to define workflow, to describe service content and service computation process. The Mobile Agent computation model Finite State Machine (MACM-FS, used to describe the service implementation. Finally, we apply this service model to the multi-robot system, the initial realization completing complex tasks in the form of multi-robot scheduling. This demonstrates that the robot has greatly improved intelligence, and provides a wide solution space for critical issues such as task division, rational and efficient use of resource and multi-robot collaboration.

KERAGAAN PERTUMBUHAN BENIH IKAN MAS (Cyprinus carpio STRAIN MAJALAYA, LOKAL BOGOR DAN RAJADANU DI KOLAM CIJERUK, BOGOR-JAWA BARAT

Directory of Open Access Journals (Sweden)

Otong Zenal Arifin

2016-11-01

Full Text Available Penelitian ini bertujuan untuk mendapatkan strain ikan mas yang memiliki keragaan pertumbuhan yang baik sebagai spesies kandidat untuk program seleksi. Tiga strain ikan mas (majalaya, lokal Bogor, dan rajadanu dipelihara dalam jaring yang diletakkan di kolam Instalasi Penelitian Cijeruk, Bogor selama 6 minggu. Hasil penelitian menunjukkan bahwa tidak ada perbedaan nyata untuk parameter pertambahan bobot dan sintasan dari 3 strain ikan mas yang diuji, sedangkan untuk pertambahan panjang individual (mm per bulan ada perbedaan yang sangat nyata (P<0,05. Strain ikan mas rajadanu memiliki pertambahan panjang terbaik (16,0 ± 1,41 dan berbeda dengan majalaya (10,3 ± 4,50 serta lokal (10,8 ± 2,06. Objective of this study is to produce good performance of common carp by comparing three promising strains majalaya, local, and rajadanu. The study was carry out using floating net cages placed in earthen pond at The Cijeruk Germ Plasm Research Station. During the study, growth and survival rate were observed were observed for six weeks. The results indicated there was no significant difference for growth of weight and survival rate. However, growth of standard length was significantly different (P<0.05. Rajadanu made the best growth of standard length (16.0 ± 1.41 and was different from majalaya (10.3 ± 4.50 and local strain (10.8 ± 2.06.

Angiotensin (1-7) ameliorates the structural and biochemical alterations of ovariectomy-induced osteoporosis in rats via activation of ACE-2/Mas receptor axis.

Science.gov (United States)

Abuohashish, Hatem M; Ahmed, Mohammed M; Sabry, Dina; Khattab, Mahmoud M; Al-Rejaie, Salim S

2017-05-23

The local and systemic renin angiotensin system (RAS) influences the skeletal system micro-structure and metabolism. Studies suggested angiotensin 1-7 (Ang(1-7)) as the beneficial RAS molecule via Mas receptor activation. This study examines the function of Ang(1-7) in bone micro-architecture and metabolism in an ovariectomized (OVX) rodent model of osteoporosis. OVX rats showed structural and bone metabolic degeneration in parallel with suppressed expressions of the angiotensin converting enzyme-2 (ACE-2)/Ang(1-7)/Mas components. The infusion of Ang(1-7) markedly alleviated the altered bone metabolism and significantly enhanced both trabecular (metaphyseal) and cortical (metaphyseal-diaphyseal) morphometry. Urinary and bones minerals were also improved in OVX rats by Ang(1-7). The infusion of the heptapeptide enhanced ACE-2/Mas receptor expressions, while down-regulated AngII, ACE, and AngII type-1 receptor (AT1R) in OVX animals. Moreover, Ang(1-7) markedly improved osteoprotegerin (OPG) and lowered receptor activator NF-κB ligand (RANKL) expressions. The defensive properties of Ang(1-7) on bone metabolism, structure and minerals were considerably eradicated after blockage of Mas receptor with A-779. Ang(1-7)-induced up-regulated ACE-2/Ang(1-7)/Mas cascade and OPG expressions were abolished and the expressions of ACE/AngII/AT1R and RANKL were provoked by A-779. These findings shows for the first time the novel valuable therapeutic role of Ang(1-7) on bone health and metabolism through the ACE-2/Mas cascade.

HR-MAS NMR for rapid identification of illicit substances in tablets and Blotter papers seized by Police Department

International Nuclear Information System (INIS)

Souza, Luciano F.; Vieira, Tarcísio S.; Lião, Luciano M.; Alcantara, Glaucia B.

2016-01-01

Illicit substances found in blotter papers and tablets seized by police are traditionally identified and characterized from extracts of these materials. However, the procedures involved in extraction stages can result in artifacts and even contamination of the samples to be analyzed. On the other hand, high-resolution magic angle spinning nuclear magnetic resonance (HR-MAS NMR) is a technique that requires no pretreatment steps, enabling direct analysis of the material, including the analysis of new illegal synthetic psychoactive substances. This study presents and discusses applications of the HR-MAS NMR in the analysis of tablets and blotter papers seized. Additional analysis in solution of the extracts of these materials was performed to compare the obtained spectral resolution signals. The results demonstrated that the HR-MAS NMR allowed the rapid identification of 3,4-methylenedioxy-N-methylcathinone (methylone), 4-methylmethcathinone (mephedrone), 2,5-dimethoxy-4-bromoamphetamine (DOB) and 2-(4-bromo-2,5-dimethoxyphenyl)-N-[(2- methoxyphenyl)methyl]ethanamine (25B-NBOMe) in samples of tablets and blotter papers seized in Goiás State, Brazil. (author)

HR-MAS NMR for rapid identification of illicit substances in tablets and Blotter papers seized by Police Department

Energy Technology Data Exchange (ETDEWEB)

Souza, Luciano F.; Vieira, Tarcísio S.; Lião, Luciano M., E-mail: lucianoliao@ufg.br [Universidade Federal de Goiás (UFG), Goiânia, GO (Brazil). Instituto de Química; Alcantara, Glaucia B. [Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande, MS (Brazil). Instituto de Química

2016-07-01

Illicit substances found in blotter papers and tablets seized by police are traditionally identified and characterized from extracts of these materials. However, the procedures involved in extraction stages can result in artifacts and even contamination of the samples to be analyzed. On the other hand, high-resolution magic angle spinning nuclear magnetic resonance (HR-MAS NMR) is a technique that requires no pretreatment steps, enabling direct analysis of the material, including the analysis of new illegal synthetic psychoactive substances. This study presents and discusses applications of the HR-MAS NMR in the analysis of tablets and blotter papers seized. Additional analysis in solution of the extracts of these materials was performed to compare the obtained spectral resolution signals. The results demonstrated that the HR-MAS NMR allowed the rapid identification of 3,4-methylenedioxy-N-methylcathinone (methylone), 4-methylmethcathinone (mephedrone), 2,5-dimethoxy-4-bromoamphetamine (DOB) and 2-(4-bromo-2,5-dimethoxyphenyl)-N-[(2- methoxyphenyl)methyl]ethanamine (25B-NBOMe) in samples of tablets and blotter papers seized in Goiás State, Brazil. (author)

Characterizing crystal disorder of trospium chloride: a comprehensive,(13) C CP/MAS NMR, DSC, FTIR, and XRPD study.

Science.gov (United States)

Urbanova, Martina; Sturcova, Adriana; Brus, Jiri; Benes, Hynek; Skorepova, Eliska; Kratochvil, Bohumil; Cejka, Jan; Sedenkova, Ivana; Kobera, Libor; Policianova, Olivia; Sturc, Antonin

2013-04-01

Analysis of C cross-polarization magic angle spinning (CP/MAS) nuclear magnetic resonance (NMR), differential scanning calorimetry (DSC), Fourier transform infrared (FTIR), and X-ray powder diffraction data of trospium chloride (TCl) products crystallized from different mixtures of water-ethanol [φ(EtOH) = 0.5-1.0] at various temperatures (0°C, 20°C) and initial concentrations (saturated solution, 30%-50% excess of solvent) revealed extensive structural variability of TCl. Although (13) C CP/MAS NMR spectra indicated broad variety of structural phases arising from molecular disorder, temperature-modulated DSC identified presence of two distinct components in the products. FTIR spectra revealed alterations in the hydrogen bonding network (ionic hydrogen bond formation), whereas the X-ray diffraction reflected unchanged unit cell parameters. These results were explained by a two-component character of TCl products in which a dominant polymorphic form is accompanied by partly separated nanocrystalline domains of a secondary phase that does not provide clear Bragg reflections. These phases slightly differ in the degree of molecular disorder, in the quality of crystal lattice and hydrogen bonding network. It is also demonstrated that, for the quality control of such complex products, (13) C CP/MAS NMR spectroscopy combined with factor analysis (FA) can satisfactorily be used for categorizing the individual samples: FA of (13) C CP/MAS NMR spectra found clear relationships between the extent of molecular disorder and crystallization conditions. © 2013 Wiley Periodicals, Inc. and the American Pharmacists Association J Pharm Sci 102:1235-1248, 2013. Copyright © 2013 Wiley Periodicals, Inc.

Los 'padres' de Internet obtienen el Principe de Asturias de Investigacion. Las tecnologias clave de la Red y la WWW reciben el galardon

CERN Multimedia

Cuartas, J

2002-01-01

"Los estadounidenses Lawrence Roberts, Robert Kahn y Vinton G. Cerf y el britanico Tim Berners-Lee, cuatro de los mas relevantes artifices de Internet, fueron distinguidos ayer con el Premio Principe de Asturias de Investigacion Cientifica y Tecnica en representacion de las "miles de personas y muchas instituciones" que han hecho posible este avance de nuestro tiempo, que, segun el acta del galardon, "esta cambiando el mundo"." (1 page).

Pharmacological significance of the interplay between angiotensin receptors: MAS receptors as putative final mediators of the effects elicited by angiotensin AT1 receptors antagonists.

Science.gov (United States)

Pernomian, Larissa; Pernomian, Laena; Gomes, Mayara S; da Silva, Carlos H T P

2015-12-15

The interplay between angiotensin AT1 receptors and MAS receptors relies on several inward regulatory mechanisms from renin-angiotensin system (RAS) including the functional crosstalk between angiotensin II and angiotensin-(1-7), the competitive AT1 antagonism exhibited by angiotensin-(1-7), the antagonist feature assigned to AT1/MAS heterodimerization on AT1 signaling and the AT1-mediated downregulation of angiotensin-converting enzyme 2 (ACE2). Recently, such interplay has acquired an important significance to RAS Pharmacology since a few studies have supporting strong evidences that MAS receptors mediate the effects elicited by AT1 antagonists. The present Perspective provides an overview of the regulatory mechanisms involving AT1 and MAS receptors, their significance to RAS Pharmacology and the future directions on the interplay between angiotensin receptors. Copyright © 2015 Elsevier B.V. All rights reserved.

ASPECTOS RELEVANTES DA APROXIMAÇÃO ENTRE BRASIL E CHINA: UMA ABORDAGEM ANALÍTICA [doi: 10.5329/RECADM.20050401009

Directory of Open Access Journals (Sweden)

Silvio Aparecido Crepaldi

2005-05-01

Full Text Available Normal 0 21 false false false PT-BR X-NONE X-NONE MicrosoftInternetExplorer4 RESUMO Nos últimos anos, cresceu notavelmente o interesse mútuo entre o Brasil e a China. Na década de 1990 ambos os países se esforçaram para promover a multi-polarização do poder mundial e fortalecer a cooperação entre países em desenvolvimento. Brasil e China trabalham com vistas à consolidação de uma parceria estratégica, o que tem impulsionado as relações bilaterais; mas há ainda desafios a serem superados. Com esta realidade surge uma lacuna na bibliografia sobre os aspectos relevantes da aproximação Brasil e China. Assim, a carência de bibliografias voltadas ao assunto que incluam o estudo desta aproximação e seus reflexos, motiva à pesquisa visando sanar essas deficiências. Pretende-se analisar as relações comerciais sino-brasileiras de 1984 a 2002 e explorar o significado do conceito de parceria estratégica no relacionamento dos dois países. Antes disso, contudo, são indispensáveis algumas ponderações extraídas da sua análise global, permitindo a melhor reflexão e apontamento de conclusões sobre as relevantes matérias tratadas na referida aproximação Brasil e China. Em conseqüência do cenário exposto, a problemática pode ser sintetizada na seguinte questão: "como Brasil e China deveriam interagir entre si para obter uma inserção mutuamente vantajosa no mundo globalizado?". As informações referentes ao tema aproximação entre Brasil e China foram obtidas mediante pesquisa bibliográfica. O volume das transações comerciais entre Brasil e China vem evoluindo rapidamente e a China tornou-se recentemente o maior parceiro comercial do Brasil na Ásia. Há ainda enormes potencialidades comerciais a serem exploradas. Ao mesmo tempo, a economia chinesa consegue gerar empregos urbanos em escala astronômica. Somente nos primeiros 9 (nove meses deste ano, foram criados cerca de 8 milhões de postos de trabalho nas cidades

Determination of the structural changes by Raman and {sup 13}C CP/MAS NMR spectroscopy on native corn starch with plasticizers

Energy Technology Data Exchange (ETDEWEB)

Cozar, O. [Academy of Romanian Scientists, Splaiul Independentei 54, 050094, Bucharest, Romania and National Institute of Research-Development for Machines and Installations Designed to Agriculture and Food Industry - INMA Bucureşti - Cluj-Napoca Branch (Romania); Filip, C.; Tripon, C. [National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath, 400293 Cluj-Napoca (Romania); Cioica, N.; Coţa, C.; Nagy, E. M. [National Institute of Research-Development for Machines and Installations Designed to Agriculture and Food Industry - INMA Bucureşti - Cluj-Napoca Branch, RO-400458 Cluj-Napoca (Romania)

2013-11-13

The plasticizing - antiplasticizing effect of water and glycerol contents on native corn starch samples is investigated by FT-Raman and {sup 13}C CP/MAS NMR spectroscopy. The presence of both amorphous and crystalline structural phases was evidenced in pure native corn starch and also in the samples containing plasticizers. Among the crystalline starch structures, the A- and V- types were suggested by CP/MAS NMR spectra.

The ACE-2/Ang1-7/Mas cascade enhances bone structure and metabolism following angiotensin-II type 1 receptor blockade.

Science.gov (United States)

Abuohashish, Hatem M; Ahmed, Mohammed M; Sabry, Dina; Khattab, Mahmoud M; Al-Rejaie, Salim S

2017-07-15

The renin angiotensin system (RAS) regulates numerous systemic functions and is expressed locally in skeletal tissues. Angiotensin1-7 (Ang1-7) is a beneficial member of the RAS, and the therapeutic effects of a large number of angiotensin receptors blockers (ARBs) are mediated by an Ang1-7-dependent cascade. This study examines whether the reported osteo-preservative effects of losartan are mediated through the angiotensin converting enzyme2 (ACE-2)/Ang1-7/Mas pathway in ovariectomized (OVX) rats. Sham and OVX animals received losartan (10mg/kg/d p.o.) for 6 weeks. A specific Mas receptor blocker (A-779) was delivered via mini-osmotic pumps during the losartan treatment period. Serum and urine bone metabolism biomarker levels were measured. Bone trabecular and cortical morphometry were quantified in distal femurs, whereas mineral contents were estimated in ashed bones, serum and urine. Finally, the expression of RAS components, the receptor activator of NF-κB ligand (RANKL) and osteoprotegerin (OPG) was determined. Losartan significantly improved the elevated bone metabolism marker levels and altered trabecular and cortical structures in OVX animals, and restored normal urinary and skeletal mineral levels. Mas receptor inhibition significantly abolished all osteo-protective effects of losartan and enhanced the deleterious effects of OVX. Losartan enhanced OVX-induced up-regulation of ACE-1, AngII, angiotensin type 1 (AT 1 ) receptor and RANKL expression, and increased ACE-2, Ang1-7, Mas and OPG expression in OVX animals. However, A-779 significantly eradicated the effects of losartan on RAS components and RANKL/OPG expression. Thus, Ang1-7 are involved in the osteo-preservative effects of losartan via Mas receptor, which may add therapeutic value to this well-known antihypertensive agent. Copyright © 2017 Elsevier B.V. All rights reserved.

"McDonald's" reklāmas analīze Latvijā un Maltā - starpkultūru atšķirīgā uztvere

OpenAIRE

Barkēviča, Santa

2016-01-01

Darbā ““McDonald's” reklāmas analīze Latvijā un Maltā – starpkultūru atšķirīgā uztvere” galvenais problēmjautājums, kas jānoskaidro, vai starptautisks uzņēmums var izmantot viena stila reklāmas kampaņu divās dažādās valstīs – Latvijā un Maltā. Galvenais darba mērķis ir noskaidrot, vai starptautisks uzņēmums var veidot vienu reklāmas kampaņu shēmu, un to izmantot dažādās valstīs, kur atrodas tā franšīzes vai filiāles, un kā starpkultūru atšķirība ietekmē reklāmas uztveri. Veicot aptaujas, inte...

“Estado Nación laico y secularización masónica en México”

Directory of Open Access Journals (Sweden)

Carlos Francisco Martínez Moreno

2011-01-01

Full Text Available Este artículo busca mostrar cómo y porqué los masones practicantes del Rito Nacional Mexicano en el siglo XIX secularizaron su tradición para responder a sus compromisos sociales, patrióticos, liberales y democráticos. Además, muestra cómo ellos sustituyeron La Biblia por la Constitución Política de los Estados Unidos Mexicanos en sus juramentos masónicos, en un contexto social en el que jurarla se consideraba un anatema por el Papa Pío IX y el clero católico, y en un contexto masónico adverso en el que sustituir el Libro de la Ley y participar en la política como masones era contravenir la tradición especulativa londinense.

Use of refraction to increase the efficiency of solar panels; Uso de la refraccion para el incremento de la eficiencia en paneles solares

Energy Technology Data Exchange (ETDEWEB)

Martinez Patino, J [Universidad de Guanajuato, Campus Irapuato-Salamanca, Salamanca, Guanajuato (Mexico)]. E-mail: jesusmp23@ugto.mx; Hernandez Figueroa, M. A; Lozano Garcia, J.M; Ireta Moreno, F; Rubio Maya, C [Universidad Michoacana de San Nicolas de Hidalgo Morelia, Michoacan (Mexico)]. E-mails: mahf@ugto.mx; jm.lozano@ugto.mx; fireta@ugto.mx; rmaya@umich.mx

2013-03-15

With the increased use of photovoltaic systems in dwellings and other areas, it is important the growing concern in sustainable development, as well as the tax benefits gotten by the acquisition of this type of systems. In this context, technical aspects of trading systems should be considered, as well as characteristics of sunlight, humidity, etc., where the photovoltaic equipment will be installed. This article seeks to increase the efficiency of commercial solar panels from a simple and economical perspective using refraction. Through three different tests, first normal operating conditions and two more tests with different conditions of temperature, humidity and water vapor the authors seek to understand the behavior of electric power generation of the PV system used. With the results obtained in this work set the tone by opening new opportunities to investigate more deeply the thermal and moisture characteristics of solar panels based on their efficiency and materials involved in the design. [Spanish] Con el incremento del uso de instalaciones fotovoltaicas en casas habitacion y en otros ambitos, es importante la creciente concientizacion del desarrollo sustentable, ademas de la utilizacion de los beneficios de impuestos que se tienen al comprar este tipo de sistemas. Bajo este contexto, se debe de considerar aspectos tecnicos de los sistemas comerciales, asi como caracteristicas de insolacion, humedad, etc., donde se instalen los equipos fotovoltaicos. En este articulo se busca incrementar la eficiencia de paneles solares comerciales desde una perspectiva sencilla y economica haciendo uso de la refraccion. A traves de tres diferentes pruebas; primeramente las condiciones normales de operacion y dos pruebas mas con diferentes condiciones de temperatura, humedad y vapor de agua los autores buscan conocer el comportamiento de la generacion de energia electrica de la instalacion fotovoltaica utilizada. Con los resultados obtenidos en este trabajo dan la pauta

Quality of Milk Pasteurized Produced By UD. Gading Mas During Storage in Refrigerator

Directory of Open Access Journals (Sweden)

Manik Eirry Sawitri

2012-02-01

Full Text Available The aim of this research was to study pasteurized milk quality produced by UD. Gading Mas on pH, Acidity, alcohol test and TPC during 5 days storage in refrigerator. On first day showed that  weight mass 1,06 (w/w; fat content 2,00 (g/100g,  protein content 3,02  (g/100g, Zn 1,67 ppm, Cu<0,005 ppm, Pb 0,02 ppm,  As  0,0120 ppm, Hg< 0,0002 ppm, Sn 1,60 ppm dan Cd < 0,001 ppm and organoleptic test included color, flavor and taste were normal. Pasteurized milk characteristic during 5 days refrigeration for pH were 6,57;6,58;6,73;6,60 and 6,50 respectively. Acidity were 1,147 %, 0,145 %, 0,145%, 0,157 %, 0,156 % and 0,175  % respectively. TPC were 6,16 x 101, 1,2. 104; 3,15.104, 0,42.106 and 3,5.108 respectively. It concluded that pasteurized milk produced by UD Gading Mas fulfilled SNI quality standard based on weight mass, pH, acidity, fat, protein, heavy metal content, organoleptic test and TPC.   Keywords: pasteurized milk, quality, refrigerator

Role of Mas receptor in renal blood flow response to angiotensin (1-7) in male and female rats.

Science.gov (United States)

Nematbakhsh, Mehdi; Safari, Tahereh

2014-01-01

Epidemiologic and clinical studies have shown that progression of renal disease in male is faster than that in female. However, the exact mechanisms are not well recognized. Angiotensin (1-7) (Ang 1-7) receptor, called "Mas", is an element in the depressor arm of renin angiotensin system (RAS), and its expression is enhanced in females. We test the hypothesis that Mas receptor (MasR) blockade (A779) attenuates renal blood flow (RBF) in response to infusion of graded doses of Ang 1-7 in female rats. Male and female Wistar rats were anesthetized and catheterized. Then, the mean arterial pressure (MAP), RBF, and controlled renal perfusion pressure (RPP) responses to infusion of graded doses of Ang 1-7 (100-1000 ng/kg/min i.v.) with and without A779 were measured in the animals. Basal MAP, RPP, RBF, and renal vascular resistance (RVR) were not significantly different between the two groups. After Ang 1-7 administration, RPP was controlled at a constant level. However, RBF increased in a dose-related manner in response to Ang 1-7 infusion in both male and female rats (Pdoserenal diseases.

Estimation of production characteristic curves of geothermal wells and of the permeability of rocky formations through one single mass flow-pressure-enthalpy (W-P-h) measurement at the wellhead; Estimacion de curvas caracteristicas de produccion de pozos geotermicos y de permeabilidades de formaciones rocosas a partir de una sola medicion flujo masico-presion- entalpia (W-P-h) a boca de pozo

Energy Technology Data Exchange (ETDEWEB)

L Moya, Sara; Aragon, Alfonso [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

1997-12-31

The proposed methodology described ahead (Moya et al.,1996; Moya et al.,1997a, 1997b and 1997c) simplifies the construction of production characteristic curves of geothermal wells and of its associated thermal productivity, in requiring one single measurement of mass flow-pressure-enthalpy (W-P-h) at the wellhead. Therefore it is an ecological option, technically and economically more feasible. On the other hand, the methodology also allows to diagnose the rocky formation absolute permeability in the well feeding zone. This permeability is usually determined through well bottom pressure tests, than in some cases are difficult to interpret. The permeability inferred by means of the proposed technology represents a complementary tool for these field tests and for the laboratory measurements on drilling cores. [Espanol] La metodologia propuesta que se describe a continuacion [Moya et al., 1995d; Moya et al., 1996; Moya et al., 1997a, 1997b y 1997c] simplifica la construccion de curvas caracteristicas de produccion de pozos geotermicos y de su productividad termica asociada al requerir solo una medicion de flujo masico-presion-entalpia (W-P-h) a boca de pozo. Es por tanto una alternativa ecologica, tecnica y economicamente mas factible. Por otra parte, la metodologia tambien permite diagnosticar el valor de la permeabilidad absoluta de la formacion rocosa en la zona de alimentacion al pozo. Esta permeabilidad se determina usualmente a partir de pruebas de presion a fondo de pozo que en algunos casos son dificiles de interpretar. La permeabilidad inferida mediante la metodologia propuesta representa una herramienta complementaria a estas pruebas de campo y a las mediciones de laboratorio sobre nucleos de perforacion.

Estimation of production characteristic curves of geothermal wells and of the permeability of rocky formations through one single mass flow-pressure-enthalpy (W-P-h) measurement at the wellhead; Estimacion de curvas caracteristicas de produccion de pozos geotermicos y de permeabilidades de formaciones rocosas a partir de una sola medicion flujo masico-presion- entalpia (W-P-h) a boca de pozo

Energy Technology Data Exchange (ETDEWEB)

L Moya, Sara; Aragon, Alfonso [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

1998-12-31

The proposed methodology described ahead (Moya et al.,1996; Moya et al.,1997a, 1997b and 1997c) simplifies the construction of production characteristic curves of geothermal wells and of its associated thermal productivity, in requiring one single measurement of mass flow-pressure-enthalpy (W-P-h) at the wellhead. Therefore it is an ecological option, technically and economically more feasible. On the other hand, the methodology also allows to diagnose the rocky formation absolute permeability in the well feeding zone. This permeability is usually determined through well bottom pressure tests, than in some cases are difficult to interpret. The permeability inferred by means of the proposed technology represents a complementary tool for these field tests and for the laboratory measurements on drilling cores. [Espanol] La metodologia propuesta que se describe a continuacion [Moya et al., 1995d; Moya et al., 1996; Moya et al., 1997a, 1997b y 1997c] simplifica la construccion de curvas caracteristicas de produccion de pozos geotermicos y de su productividad termica asociada al requerir solo una medicion de flujo masico-presion-entalpia (W-P-h) a boca de pozo. Es por tanto una alternativa ecologica, tecnica y economicamente mas factible. Por otra parte, la metodologia tambien permite diagnosticar el valor de la permeabilidad absoluta de la formacion rocosa en la zona de alimentacion al pozo. Esta permeabilidad se determina usualmente a partir de pruebas de presion a fondo de pozo que en algunos casos son dificiles de interpretar. La permeabilidad inferida mediante la metodologia propuesta representa una herramienta complementaria a estas pruebas de campo y a las mediciones de laboratorio sobre nucleos de perforacion.

Relation Between Acid and Catalytic Properties of Chlorinated Gamma-Alumina. a 31p Mas Nmr and Ftir Investigation

Directory of Open Access Journals (Sweden)

Guillaume D.

1999-07-01

Full Text Available In this paper, we have studied the effect of chlorine on the surface properties of gamma-alumina, especially on their acid properties. The use of FTIR spectroscopy and 31P MAS NMR of adsorbed trimethylphosphine allows to propose a chlorination mechanism. To correlate the surface properties of these chlorinated gamma-alumina with their catalytic properties, we have used a model reaction, the cracking of n-heptane under reforming conditions. The analysis of the correlation between acid properties determined by 31P MAS NMR and the catalytic results (in terms of activities and selectivities allows to identify which sites are involved in the cracking reaction.

Decision-making support system based on MAS for emergency response to nuclear accidents of marine pressurized-water reactor

International Nuclear Information System (INIS)

Chen Dengke; Zhang Dafa; Jiang Wei; Chen Yonghong

2007-01-01

Emergency decision-making to Marine Pressurized-Water Reactor (MPWR) was severely restricted by the complex environment. To enhance the emergency decision-making ability of MPWR, reducing the effect of emergencies, an emergency Decision-making Support System (DSS) which based on Multi-agent System (MAS) was presented. In the system, the HLA/RTI was used as the support environment, and the structure and the Control Agent (SCA), Analyse Agent (AA), Countermeasure Agent (CA), Evaluation Agent (EVA) and Environment Agent (ENA) were designed. The MAS were with the characteristics of autonomy, reactivity and initiative, which were fully used in the system to make effective decision for emergencies. (authors)

MODIS Airborne Simulator (MAS) Measurements Taken Onboard the NASAER-2 During the TOGA COARE Intensive Observing Period

Data.gov (United States)

National Aeronautics and Space Administration — The TOGA COARE Data Information System has responsibility for distributing information about TOGA COAREdatasets and access paths.The MAS data are available upon...

MAS: Malware Analysis System Based on Hardware-Assisted Virtualization Technology

Science.gov (United States)

Kim, Taehyoung; Kim, Inhyuk; Min, Changwoo; Eom, Young Ik

There are many analysis techniques in order to analyze malicious codes. However, recently malicious codes often evade detection using stealthy obfuscation techniques, and attack computing systems. We propose an enhanced dynamic binary instrumentation using hardware-assisted virtualization technology. As a machine-level analyzer, our system can be isolated from almost the whole threats of malware, and provides single step analysis environment. Proposed system also supports rapid system call analysis environment. We implement our malware analysis system (referred as MAS) on the KVM hypervisor with Intel VT-x virtualization support. Our experiments with benchmarks show that the proposed system provides efficient analysis environment with low overhead.

A Bio-Economic Case Study of Canadian Honey Bee (Hymenoptera: Apidae) Colonies: Marker-Assisted Selection (MAS) in Queen Breeding Affects Beekeeper Profits

Science.gov (United States)

Baylis, Kathy; Hoover, Shelley E.; Currie, Rob W.; Melathopoulos, Andony P.; Pernal, Stephen F.; Foster, Leonard J.; Guarna, M. Marta

2017-01-01

Abstract Over the past decade in North America and Europe, winter losses of honey bee (Hymenoptera: Apidae) colonies have increased dramatically. Scientific consensus attributes these losses to multifactorial causes including altered parasite and pathogen profiles, lack of proper nutrition due to agricultural monocultures, exposure to pesticides, management, and weather. One method to reduce colony loss and increase productivity is through selective breeding of queens to produce disease-, pathogen-, and mite-resistant stock. Historically, the only method for identifying desirable traits in honey bees to improve breeding was through observation of bee behavior. A team of Canadian scientists have recently identified markers in bee antennae that correspond to behavioral traits in bees and can be tested for in a laboratory. These scientists have demonstrated that this marker-assisted selection (MAS) can be used to produce hygienic, pathogen-resistant honey bee colonies. Based on this research, we present a beekeeping case study where a beekeeper’s profit function is used to evaluate the economic impact of adopting colonies selected for hygienic behavior using MAS into an apiary. Our results show a net profit gain from an MAS colony of between 2% and 5% when Varroa mites are effectively treated. In the case of ineffective treatment, MAS generates a net profit benefit of between 9% and 96% depending on the Varroa load. When a Varroa mite population has developed some treatment resistance, we show that MAS colonies generate a net profit gain of between 8% and 112% depending on the Varroa load and degree of treatment resistance. PMID:28334400

Classificação do conteúdo de documentos contábeis usando aprendizagem de máquina: o caso dos fatos relevantes

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Brunna Hisla da Silva Sena

2010-01-01

Full Text Available El análisis de contenido de textos narrativos ha sido estudiado, en los últimos años, con más frecuencia. En diversos trabajos, se verifica la pesquisa con relación a su legibili - dad, comprensibilidad y el nivel de optimismo, neutralidad y pesimismo. Pero, el análisis de clasificación en lo referente a tendencias optimistas, pesimistas y neutras ha sido efectuado de forma muy laboriosa, pues demanda un análisis humano de los textos, justificando la creación de un análisis de textos de forma más rápida y objetiva, además de la tentativa de eliminación de la subjetividad. Delante de eso, el objetivo de este trabajo es proponer una clasificación automática de hechos relevantes contables, haciéndose un análisis del contenido de textos narrativos, con la utilización de herramientas computacionales de lec - tura y clasificación de textos. La idea es procurar contribuir con un ejemplo de aplicación de aprendizaje de máquina a la Ciencia Contable. Este análisis utilizó hechos relevantes ya analizados anteriormente en el trabajo de Pereira e Silva (2008. Los hechos ya clasifica - dos fueron utilizados como conjunto de entrenamiento para el programa, para que así éste pudiese clasificar otros datos desconocidos, no clasificados.

Leitura rapida do KDIGO 2012: Diretrizes para avaliacao e manuseio da doenca renal cronica na pratica clinica

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Gianna Mastroianni Kirsztajn

2014-03-01

Full Text Available Os autores desta "leitura rápida" apresentam os dados que consideraram mais relevantes na versão 2012 do KDIGO referente à avaliação e manuseio da doença renal crônica. Não se trata da opinião dos autores, mas sim de uma apresentação mais concisa das diretrizes, que podem ser úteis na prática clínica.

Valsartan attenuates intimal hyperplasia in balloon-injured rat aortic arteries through modulating the angiotensin-converting enzyme 2-angiotensin-(1-7)-Mas receptor axis.

Science.gov (United States)

Li, Yonghong; Cai, Shanglang; Wang, Qixin; Zhou, Jingwei; Hou, Bo; Yu, Haichu; Ge, Zhiming; Guan, Renyan; Liu, Xu

2016-05-15

The role of the Mas receptor in the activity of valsartan against intimal hyperplasia is unclear. Herein, we investigated the role of the angiotensin-converting enzyme 2 (ACE2)-angiotensin-(1-7)-Mas receptor axis on the activity of valsartan against intimal hyperplasiain balloon-injured rat aortic arteries. Wistar rats were randomized equally into the sham control group, injured group, and injured plus valsartan (20 mg/kg/d)-treated group. Valsartan significantly attenuated the vascular smooth muscle cell proliferation and intimal and medial thickening on days 14 and 28 after injury. The angiotensin-(1-7) levels as well as ACE2 and Mas receptor mRNA/protein expression were significantly decreased in the injured rats, compared to the uninjured rats; meanwhile, the angiotensin II level as well as the ACE and AT1 receptor mRNA/protein expression were increased (all P valsartan significantly increased the angiotensin-(1-7) levels as well as ACE2 and Mas receptor mRNA/protein expression but decreased the angiotensin II level, ACE and AT1 receptor mRNA/protein expression, as well as the p-ERK protein expression, compared to the injured group (all P valsartan attenuates neointimal hyperplasiain balloon-injured rat aortic arteries through activation of the ACE2-angiotensin-(1-7)-Mas axis as well as inhibition of the ACE-angiotensin II-AT1 and p-ERK pathways. Copyright © 2016 Elsevier Inc. All rights reserved.

Reorientation of the Methyl Group in MAs(III) is the Rate-Limiting Step in the ArsM As(III) S-Adenosylmethionine Methyltransferase Reaction.

Science.gov (United States)

Packianathan, Charles; Li, Jiaojiao; Kandavelu, Palani; Sankaran, Banumathi; Rosen, Barry P

2018-03-01

The most common biotransformation of trivalent inorganic arsenic (As(III)) is methylation to mono-, di-, and trimethylated species. Methylation is catalyzed by As(III) S -adenosylmethionine (SAM) methyltransferase (termed ArsM in microbes and AS3MT in animals). Methylarsenite (MAs(III)) is both the product of the first methylation step and the substrate of the second methylation step. When the rate of the overall methylation reaction was determined with As(III) as the substrate, the first methylation step was rapid, whereas the second methylation step was slow. In contrast, when MAs(III) was used as the substrate, the rate of methylation was as fast as the first methylation step when As(III) was used as the substrate. These results indicate that there is a slow conformational change between the first and second methylation steps. The structure of CmArsM from the thermophilic alga Cyanidioschyzon merolae sp. 5508 was determined with bound MAs(III) at 2.27 Å resolution. The methyl group is facing the solvent, as would be expected when MAs(III) is bound as the substrate rather than facing the SAM-binding site, as would be expected for MAs(III) as a product. We propose that the rate-limiting step in arsenic methylation is slow reorientation of the methyl group from the SAM-binding site to the solvent, which is linked to the conformation of the side chain of a conserved residue Tyr70.

Considerations for Consortia as States Transition Away from AA-MAS. NCEO Brief. Number 7

Science.gov (United States)

National Center on Educational Outcomes, 2014

2014-01-01

States with an alternate assessment based on modified achievement standards (AA-MAS) that received a flexibility waiver from some of the requirements of No Child Left Behind are required to phase out their use of this assessment. And, on August 23, 2013, the U.S. Department of Education published a proposed rollback of regulation that allowed the…

Pase de guardia: información relevante y toma de decisiones en clínica médica: Estudio prospectivo Handoffs: relevant information and decision making in internal medicine: A prospective study

Directory of Open Access Journals (Sweden)

Andrea Vázquez

2011-09-01

Full Text Available Introducción. El pase de guardia es una actividad médica en la que se transfiere información y responsabilidad entre profesionales en situaciones de discontinuidad o transiciones en el cuidado de los pacientes. Los pases de guardia son fuente de errores médicos, a pesar de lo cual la programación formal en la competencia específica está ausente en los currículos de las residencias médicas. En este sentido, implementamos el proyecto educativo 'Pase de guardia oral y escrito en la residencia de clínica médica'. Materiales y métodos. Definimos el constructo 'información relevante' a partir de cinco ítems, uno sistémico y cuatro cognitivos. Se analizó la prevalencia de los déficits de información relevante y su repercusión sobre la práctica clínica. Resultados. En 230 protocolos de guardia, la prevalencia de déficits de información relevante fue del 31,3% (n = 72 y afectó tanto al ítem sistémico (11% como a los ítems con contenidos sustantivos (20%. Con información relevante, las conductas activas fueron del 34,6%, y las pasivas, del 65,4%; con déficits de información relevante, las activas fueron del 13,9%, y las pasivas, del 86,1%. Estas diferencias fueron significativas (p Introduction. Handoffs are medical activity which transfers information and responsibility among professionals in situations of discontinuity or transitions in patient care. Handoffs are source of medical errors and adverse events, which despite the formal programming of specific competencies are absent in the curricula of medical residencies. In this sense, we implemented the educational project 'Oral and written handoffs in internal medicine residency program'. Materials and methods. We defined the parameter relevant information with a systemic item and four other cognitive items; we assess the prevalence of relevant information deficits and the effects on the clinical practice in a prospective study. Results. In 230 protocols the prevalence of

Mas Gusó: a Roman military Settlement in the suburbium of Emporiae

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Josep Casas Genover

2016-11-01

Full Text Available Although the site of Mas Gusó (province of Girona has been interpreted as a Roman uilla, this is actually a public building. Its existence have to be contextualized within the frame of the structures established by the Roman authority for territorial control closely linked to the creation of a new road network and a tax collection system. We also analyse its survival until the 3rd century AD, which are closely related to the nearby city of Emporiae.

Electrical characteristics of sphere-plane type spark counters; Caracteristiques electriques de compteurs a etincelles du type sphere-plan; Ehlektricheskie kharakteristiki iskrovykh schetchikov tipa shar-ploskost'; Caracteristicas electricas de los contadores de chispas del tipo esfera-plano

Energy Technology Data Exchange (ETDEWEB)

Laborie, P; Blanc, D [Centre de Physique Nucleaire, Faculte des Sciences de Toulouse (France)

1962-04-15

quelques millimetres cubes, est tres bien defini, ce qui permet la construction de telescopes precis. (author) [Spanish] Los autores describen los detalles mecanicos y las caracteristicas de funcionamiento de unos detectores de chispas en que se utiliza como anodo una esfera de pequeno diametro (0,30 mm), dispuesta frente a un catodo plano y que funcionan en regimen de efecto , en aire a presion atmosferica. Las caracteristicas de contaje son semejantes a las de los detectores de anodo de alambre, de tipo Rosenblum. No obstante, el contador de esfera presenta, con respecto a dicho contador Rosenblum, cierto numero de ventajas derivadas de su geometria: a) la corriente residual (ruido de fondo) es debil y el desprendimiento de ozono y de oxidos de nitrogeno, con las chispas, es poco considerable; b) como su capacidad propia es muy pequena, el detector ofrece una respuesta mas rapida; c) la eficiencia es independiente de la direccion de incidencia de la particula, al reves de lo que ocurre con los contadores de alambre; d) el volumen sensible de revolucion en torno del eje de simetria del detector es de algunos milimetros cubicos y esta muy bien definido, lo que permite la construccion de telescopios de gran precision. (author) [Russian] Avtory opisyvayut mekhanicheskuyu konstruktsiyu i rabochie kharakteristiki iskrovykh schetchikov, v kotorykh v kachestve anoda ispol'zuetsya shar malogo diametra (0,30 mm), raspolozhennyj protiv ploskogo katoda. Ehti schetchiki rabotayut v rezhime ''kol'tsevogo'' yavleniya (''korony'') v vozdukhe pri atmosfernom davlenii. Schetnye kharakteristiki blizki k kharakteristikam schetchikov Rozenblyuma s anodnym provodom. Sharovoj schetchik imeet, odnako, nekotorye preimushchestva po sravneniyu so schetchikom Rozenblyuma, chto svyazano s ego geometriej: 1. ostatochnyj tok (fon) slabyj, a vydelenie ozona i okisi azota vo vremya iskreniya neznachitel'no. 2. Poskol'ku ego sobstvennaya emkost' ochen' mala, schetchik daet bolee bystryj otvet. 3

A Bio-Economic Case Study of Canadian Honey Bee (Hymenoptera: Apidae) Colonies: Marker-Assisted Selection (MAS) in Queen Breeding Affects Beekeeper Profits.

Science.gov (United States)

Bixby, Miriam; Baylis, Kathy; Hoover, Shelley E; Currie, Rob W; Melathopoulos, Andony P; Pernal, Stephen F; Foster, Leonard J; Guarna, M Marta

2017-06-01

Over the past decade in North America and Europe, winter losses of honey bee (Hymenoptera: Apidae) colonies have increased dramatically. Scientific consensus attributes these losses to multifactorial causes including altered parasite and pathogen profiles, lack of proper nutrition due to agricultural monocultures, exposure to pesticides, management, and weather. One method to reduce colony loss and increase productivity is through selective breeding of queens to produce disease-, pathogen-, and mite-resistant stock. Historically, the only method for identifying desirable traits in honey bees to improve breeding was through observation of bee behavior. A team of Canadian scientists have recently identified markers in bee antennae that correspond to behavioral traits in bees and can be tested for in a laboratory. These scientists have demonstrated that this marker-assisted selection (MAS) can be used to produce hygienic, pathogen-resistant honey bee colonies. Based on this research, we present a beekeeping case study where a beekeeper's profit function is used to evaluate the economic impact of adopting colonies selected for hygienic behavior using MAS into an apiary. Our results show a net profit gain from an MAS colony of between 2% and 5% when Varroa mites are effectively treated. In the case of ineffective treatment, MAS generates a net profit benefit of between 9% and 96% depending on the Varroa load. When a Varroa mite population has developed some treatment resistance, we show that MAS colonies generate a net profit gain of between 8% and 112% depending on the Varroa load and degree of treatment resistance. © The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America.

Inversor Resonante de Tres Elementos L-LC con Caracteristica Cortocircuitable para Aplicaciones de Calentamiento por Induccion

Science.gov (United States)

Espi Huerta, Jose Miguel

seccion de entrada mediante un mayor o menor aporte de corriente al puente. Como consecuencia, la seccion de entrada del paralelo, ya de por si mas voluminosa que lao del serie por el uso de grandes componentes magneticos (bobinas de filtro o de "alisamiento"), result a tambien mas complicada y costosa debido a la necesidad de ser implementada mediante rectificador controlado. Ademas, la regulacion que ofrece el rectificador es pobre, dada su baja frecuencia de conmutacion. En cambio, el circuito serie puede funcionar por encima de la resonancia manteniendo una secuencia de conmutacion sin riesgos de recuperacion inversa y con una corriente de salida practicamente sinusoidal, lo que permite un control de la potencia por variacion de frecuencia. Puesto que la tarea de regulacion se realiza desde el puente inversor, la regulacion resulta mucho mas eficaz y la seccion de entrada se puede implementar mediante un simple rectificador no controlado y un condensador de filtro. (Abstract shortened by UMI.).

Two-Stage MAS Technique for Analysis of DRA Elements and Arrays on Finite Ground Planes

DEFF Research Database (Denmark)

Larsen, Niels Vesterdal; Breinbjerg, Olav

2007-01-01

A two-stage Method of Auxiliary Sources (MAS) technique is proposed for analysis of dielectric resonator antenna (DRA) elements and arrays on finite ground planes (FGPs). The problem is solved by first analysing the DRA on an infinite ground plane (IGP) and then using this solution to model the FGP...

Protein resonance assignment at MAS frequencies approaching 100 kHz: a quantitative comparison of J-coupling and dipolar-coupling-based transfer methods

Energy Technology Data Exchange (ETDEWEB)

Penzel, Susanne; Smith, Albert A.; Agarwal, Vipin; Hunkeler, Andreas [ETH Zürich, Physical Chemistry (Switzerland); Org, Mai-Liis; Samoson, Ago, E-mail: ago.samoson@ttu.ee [Tallinn University of Technology, NMR Instituut, Tartu Teadus, Tehnomeedikum (Estonia); Böckmann, Anja, E-mail: a.bockmann@ibcp.fr [UMR 5086 CNRS/Université de Lyon 1, Institut de Biologie et Chimie des Protéines (France); Ernst, Matthias, E-mail: maer@ethz.ch; Meier, Beat H., E-mail: beme@ethz.ch [ETH Zürich, Physical Chemistry (Switzerland)

2015-10-15

We discuss the optimum experimental conditions to obtain assignment spectra for solid proteins at magic-angle spinning (MAS) frequencies around 100 kHz. We present a systematic examination of the MAS dependence of the amide proton T{sub 2}′ times and a site-specific comparison of T{sub 2}′ at 93 kHz versus 60 kHz MAS frequency. A quantitative analysis of transfer efficiencies of building blocks, as they are used for typical 3D experiments, was performed. To do this, we compared dipolar-coupling and J-coupling based transfer steps. The building blocks were then combined into 3D experiments for sequential resonance assignment, where we evaluated signal-to-noise ratio and information content of the different 3D spectra in order to identify the best assignment strategy. Based on this comparison, six experiments were selected to optimally assign the model protein ubiquitin, solely using spectra acquired at 93 kHz MAS. Within 3 days of instrument time, the required spectra were recorded from which the backbone resonances have been assigned to over 96 %.

ACE-2/Ang1-7/Mas cascade mediates ACE inhibitor, captopril, protective effects in estrogen-deficient osteoporotic rats.

Science.gov (United States)

Abuohashish, Hatem M; Ahmed, Mohammed M; Sabry, Dina; Khattab, Mahmoud M; Al-Rejaie, Salim S

2017-08-01

The local role of the renin angiotensin system (RAS) was documented recently beside its conventional systemic functions. Studies showed that the effector angiotensin II (AngII) alters bone health, while inhibition of the angiotensin converting enzyme (ACE-1) preserved these effects. The newly identified Ang1-7 exerts numerous beneficial effects opposing the AngII. Thus, the current study examines the role of Ang1-7 in mediating the osteo-preservative effects of ACEI (captopril) through the G-protein coupled Mas receptor using an ovariectomized (OVX) rat model of osteoporosis. 8 weeks after the surgical procedures, captopril was administered orally (40mgkg -1 d -1 ), while the specific Mas receptor blocker (A-779) was delivered at infusion rate of 400ngkg -1 min -1 for 6 weeks. Bone metabolic markers were measured in serum and urine. Minerals concentrations were quantified in serum, urine and femoral bones by inductive coupled plasma mass spectroscopy (ICP-MS). Trabecular and cortical morphometry was analyzed in the right distal femurs using micro-CT. Finally, the expressions of RAS peptides, enzymes and receptors along with the receptor activator of NF-κB ligand (RANKL) and osteoprotegerin (OPG) were determined femurs heads. OVX animals markedly showed altered bone metabolism and mineralization along with disturbed bone micro-structure. Captopril significantly restored the metabolic bone bio-markers and corrected Ca 2+ and P values in urine and bones of estrogen deficient rats. Moreover, the trabecular and cortical morphometric features were repaired by captopril in OVX groups. Captopril also improved the expressions of ACE-2, Ang1-7, Mas and OPG, while abolished OVX-induced up-regulation of ACE-1, AngII, Ang type 1 receptor (AT1R) and RANKL. Inhibition of Ang1-7 cascade by A-779 significantly eradicated captopril protective effects on bone metabolism, mineralization and micro-structure. A-779 also restored OVX effects on RANKL expression and ACE-1/AngII/AT1R

Successfully Transitioning from the AA-MAS to the General Assessment. NCEO Policy Directions. Number 22

Science.gov (United States)

Lazarus, Sheryl; Thurlow, Martha; Christensen, Laurene; Shyyan, Vitaliy

2014-01-01

Federal policy initiatives such as the flexibility waivers for accountability are requiring that states transition away from the use of an alternate assessment based on modified achievement standards (AA-MAS). It is expected that those students who had participated in that assessment will instead participate in the state's general assessment (or a…

Los cinco sexos, o cómo establecemos fronteras categoriales moralmente relevantes en un mundo difuso y continuo

Directory of Open Access Journals (Sweden)

Gomila, Antoni

2013-08-01

Full Text Available It is generally assumed that moral realism requires a determined world, so that moral judgments can also be determined. From this point of view, genuine moral dilemmas, where two alternative judgments are equally well-grounded, would be a counter-example for moral realism. In this paper I argue against such a challenge to moral realism. Starting from the continuous and gradualist character of the constitutive criteria of our concepts, I show how indeterminacies and limit cases are to be expected where it can be impossible to determine the truth value of a proposition. The existence of fuzzy conceptual boundaries does not mean they cannot be crossed (that they are not useful, that they do not capture difference or relevant features from the point of view of the causal structure of reality and its intelligibility, quite the opposite: they serve to establish morally relevant differences. The very possibility of a community with common conceptual practices depends upon the existence of paradigmatic, central cases that exemplify a concept meaning or a moral valuation.Generalmente se considera que el realismo moral exige un mundo bien determinado, para que las valoraciones también puedan estarlo. Desde este punto de vista, los dilemas morales genuinos, donde no pueda establecerse la opción moralmente correcta porque haya razones igualmente poderosas para ambas alternativas, constituyen un desafío al realismo moral. En este trabajo argumento en contra de este tipo de ataque al realismo moral. Partiendo del carácter continuo y gradual de los criterios constitutivos de nuestros conceptos, muestro cómo cabe esperar precisamente casos límite, en los que aparentemente está indeterminada la verdad. Que existan fronteras conceptuales borrosas no significa que no puedan ser cruzadas (que no sean útiles, que no capten diferencias o aspectos relevantes desde el punto de vista de la estructura causal de la realidad y su inteligibilidad, al contrario

Role of Mas Receptor Antagonist A799 in Renal Blood Flow Response to Ang 1-7 after Bradykinin Administration in Ovariectomized Estradiol-Treated Rats

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Aghdas Dehghani

2015-01-01

Full Text Available Background. The accompanied role of Mas receptor (MasR, bradykinin (BK, and female sex hormone on renal blood flow (RBF response to angiotensin 1-7 is not well defined. We investigated the role of MasR antagonist (A779 and BK on RBF response to Ang 1-7 infusion in ovariectomized estradiol-treated rats. Methods. Ovariectomized Wistar rats received estradiol (OVE or vehicle (OV for two weeks. Catheterized animals were subjected to BK and A799 infusion and mean arterial pressure (MAP, RBF, and renal vascular resistance (RVR responses to Ang 1-7 (0, 100, and 300 ng kg−1 min−1 were determined. Results. Percentage change of RBF (%RBF in response to Ang1-7 infusion increased in a dose-dependent manner. In the presence of BK, when MasR was not blocked, %RBF response to Ang 1-7 in OVE group was greater than OV group significantly (P<0.05. Infusion of 300 ng kg−1 min−1 Ang 1-7 increased RBF by 6.9±1.9% in OVE group versus 0.9±1.8% in OV group. However when MasR was blocked, %RBF response to Ang 1-7 in OV group was greater than OVE group insignificantly. Conclusion. Coadministration of BK and A779 compared to BK alone increased RBF response to Ang 1-7 in vehicle treated rats. Such observation was not seen in estradiol treated rats.

13C and 15N CP/MAS, 1H-15N SCT CP/MAS and FTIR spectroscopy as tools for qualitative detection of the presence of zwitterionic and non-ionic forms of ansa-macrolide 3-formylrifamycin SV and its derivatives in solid state.

Science.gov (United States)

Przybylski, Piotr; Pyta, Krystian; Klich, Katarzyna; Schilf, Wojciech; Kamieński, Bohdan

2014-01-01

(13)C, (15)N CP/MAS, including (1)H-(13)C and (1)H-(15)N short contact time CP/MAS experiments, and FTIR methods were applied for detailed structural characterization of ansa-macrolides as 3-formylrifamycin SV (1) and its derivatives (2-6) in crystal and in powder forms. Although HPLC chromatograms for 2/CH3 OH and 2/CH3 CCl3 were the same for rifampicin crystals dissolved in respective solvents, the UV-vis data recorded for them were different in 300-375 nm region. Detailed solid state (13)C and (15)N CP/MAS NMR and FTIR studies revealed that rifampicin (2), in contrast to 3-formylrifamycin SV (1) and its amino derivatives (3-6), can occur in pure non-ionic or zwitterionic forms in crystal and in pure these forms or a mixture of them in a powder. Multinuclear CP/MAS and FTIR studies demonstrated also that 3-6 derivatives were present exclusively in pure zwitterionic forms, both in powder and in crystal. On the basis of the solid state NMR and FTIR studies, two conformers of 3-formylrifamycin SV were detected in powder form due to the different orientations of carbonyl group of amide moiety. The PM6 molecular modeling at the semi-empirical level of theory, allowed visualization the most energetically favorable non-ionic and zwitterionic forms of 1-6 antibiotics, strongly stabilized via intramolecular H-bonds. FTIR studies indicated that the originally adopted forms of these type antibiotics in crystal or in powder are stable in standard laboratory conditions in time. The results presented point to the fact that because of a possible presence of two forms of rifampicin (compound 2), quantification of the content of this antibiotic in relevant pharmaceuticals needs caution. Copyright © 2013 John Wiley & Sons, Ltd.

Des schémas équivalents pour les circuits couplés multi-enroulements

Science.gov (United States)

Keradec, J. P.; Cogitore, B.; Laveuve, E.; Bensoam, M.

1994-04-01

The aim of this paper is to represent the electrical behaviour of any number of magnetically coupled windings with couplers and inductors. Two methods, mathematicaly justified, are proposed. The second one introduces only positive inductances. As an exemple, it is applied to the representation of a three column three phase transformer. The obtained circuits supply the requisite guide to design more complete circuits which allow the high frequency behaviour of wound components to be taken into account, especialy in electronics simulation softwares. Le but de cet article est de traduire le comportement électrique d'un nombre quelconque d'enroulements magnétiquement couplés, par des coupleurs et des inductances. Deux méthodes, établies mathématiquement, sont proposées. La seconde n'introduit que des inductances positives. A titre d'exemple, elle est appliquée à la représentation d'un transformateur triphasé à trois colonnes. Les schémas obtenus fournissent l'indispensable ossature de schémas plus complets, aptes à représenter le comportement haute fréquence des composants bobinés, notamment dans un logiciel de simulation électronique.

ANALISIS PERHITUNGAN DAN PELAPORAN PAJAK PERTAMBAHAN NILAI PADA PT FAJAR MAS KARYATAMA

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MARINDO PUTRA

2017-05-01

Full Text Available Value Added Tax (VAT is Tax that imposed on any apreciation in value of the goods or services in its circulation from producers to consumers. Through the calculation dan reporting is good, then the company may be said it has complied with the applicable rules in order to enhance the national development budget of the Government. PT Fajar Mas Karyatama as a company engaged intrade of goods subject to VAT, as in general make a purchase with Input Tax which may be credited. The purpose of this study to know whether the application of VAT and VAT underpayment or overpayment in accordance with law of VAT No. 42 of 2009. This study used a comparative method. The company will account for and report the delivery of Added Value Tax in the Notice Period of Added Value Tax (VAT Period SPT. VAT calculations made by company are the basis for the report required to implement Tax Laws for the companies. Conclusion is that application of VAT in the calculating and reporting of PT Fajar Mas Karyatama was almost accordance with the VAT Act applied and through the application of VAT, namely the purchase and sale of Taxable Goods so that the sum of the difference by the number of Input Tax or Output Tax generate VAT Less/More Pay at the end each mont, it is accordance with the Law of VAT No. 42 of 2009.

Quality of Kelantan drinking water and knowledge, attitude and practice among the population of Pasir Mas, Malaysia.

Science.gov (United States)

Ab Razak, N H; Praveena, S M; Aris, A Z; Hashim, Z

2016-02-01

Information about the quality of drinking water, together with analysis of knowledge, attitude and practice (KAP) analysis and health risk assessment (HRA) remain limited. The aims of this study were: (1) to ascertain the level of KAP regarding heavy metal contamination of drinking water in Pasir Mas; (2) to determine the concentration of heavy metals (Al, Cr, Cu, Fe, Ni, Pb, Zn and Cd) in drinking water in Pasir Mas; and (3) to estimate the health risks (non-carcinogenic and carcinogenic) caused by heavy metal exposure through drinking water using hazard quotient and lifetime cancer risk. Information on KAP was collected using a standardized questionnaire. Heavy metal analysis of drinking water samples was performed using graphite furnace atomic absorption spectrophotometry. The population of Pasir Mas has good knowledge (80%), a less positive attitude (93%) and good practice (81%) towards heavy metal contamination of drinking water. The concentrations of heavy metals analysed in this study were found to be below the permissible limits for drinking water set by the Malaysian Ministry of Health and the World Health Organization. The HRA showed no potential non-carcinogenic and carcinogenic risks from the intake of heavy metal through drinking water. By investigating the quality of drinking water, KAP and HRA, the results of this study will provide authorities with the knowledge and resources to improve the management of drinking water quality in the future. Copyright © 2015 The Royal Society for Public Health. Published by Elsevier Ltd. All rights reserved.

Who Are the Students Who May Qualify for an Alternate Assessment Based on Modified Academic Achievement Standards (AA-MAS)?: Focus Group Results. Synthesis Report 79

Science.gov (United States)

Berndt, Sandra; Ebben, Barbara; Kubinski, Eva; Sim, Grant; Liu, Kristin; Lazarus, Sheryl; Thurlow, Martha; Christian, Elizabeth

2011-01-01

Beginning in 2007, federal regulations to two major education laws gave state departments of education the option to develop an alternate assessment based on modified achievement standards (AA-MAS) for some students with disabilities. The regulations stated that the AA-MAS was intended for students who were being instructed in the grade-level…

DISEÑO E IMPLEMENTACION DE UN SISTEMA DE GESTION DEL CONOCIMIENTO SOBRE AMERICA LATINA PARA LA TOMA DE DECISIONES DE ACTORES SOCIALES RELEVANTES

OpenAIRE

CHEYRE ESPINOSA, JUAN EMILIO

2013-01-01

El proyecto Fondef D07I1048 consistió en diseñar una metodología para el conocimiento y la toma de decisiones de actores sociales relevantes sobre América Latina. La aplicación de esta metodologia es de utilidad para ejecutivos y empresarios, que tienen interés en invertir (IED) en países de América Latina en el largo plazo, como así mismo a otros tomadores de decisión. Esta metodología creada está compuesta por un estudio de antecedentes cualitativos y cuantitativos que se constr...

Experimental article – Reducing effective dose to a paediatric phantom by using different combinations of kVp, mAs and additional filtration whilst maintaining image quality

NARCIS (Netherlands)

Elsbeth Huizinga; Ana Pereira; Wouter Schaake; Charlotte Bloomfield; Heidi Knight; Emilie Crausaz; Hanne Hustveit; Ruurd Visser; Vanja Harsaker; Diane Chabloz; Filipa Boavida

2015-01-01

Purpose: To determine whether using different combinations of kVp and mAs with additional filtration can reduce the effective dose to a paediatric phantom whilst maintaining diagnostic image quality. Methods: 27 images of a paediatric AP pelvis phantom were acquired with different kVp, mAs

Experimental article – Reducing effective dose to a paediatric phantom by using different combinations of kVp, mAs and additional filtration whilst maintaining image quality

NARCIS (Netherlands)

Huizinga, Elsbeth; Schaake, Wouter; Visser, Ruurd; Bloomfield, Charlotte; Boavida, Filipa; Chabloz, Diane; Crausaz, Emilie; Hustveit, Hanne; Knight, Heidi; Pereira, Anna; Harsaker, Vanja

2015-01-01

Purpose: To determine whether using different combinations of kVp and mAs with additional filtration can reduce the effective dose to a paediatric phantom whilst maintaining diagnostic image quality. Methods: 27 images of a paediatric AP pelvis phantom were acquired with different kVp, mAs and

Interneta sociālie tīkli draugiem.lv, mammam/tetiem.lv un twitter.com kā reklāmas nesēji Latvijā (2009.gads)

OpenAIRE

Vismane, Inese

2010-01-01

Maģistra darba tēma ir „Interneta sociālie tīkli draugiem.lv, mammam/tetiem.lv un twitter.com kā reklāmas nesēji Latvijā (2009.gads)”. Darba mērķis ir izpētīt Latvijas interneta sociālo tīklu vidi kā potenciāli augošu un reklāmai piemērotu, kā arī izpētīt pamanāmākos reklāmas gadījumus šajos portālos. Teorijas daļā tiek apskatīta Web 2.0 ēra, interneta reklāmas un sociālo mediju mārketinga īpatnības, sociālo tīklu fenomens un teorijas, Latvijas reklāmas tirgus un auditorija, kā arī sociāl...

Pre- And Post-Enron Learnings On Learning In M&A Environments - A Qualitative Study In Preparation Of A Dissertation On The Influence Of Management Andragogy On Executives Ability To Successfully Manage M&As

OpenAIRE

Jacqueline Fendt

2011-01-01

In a global economy characterized by convergence and consolidation, by shareholder pressure, by the war for talent, for knowledge and for customer bondage, Merger and Acquisition transactions (M&As) are seen as a fast, efficient and spectacular way to innovate. M&As are therefore a frequently used strategic tool for corporate development. However, as of now, more than 75% of all M&As fail to meet objectives and 50% even destroy shareholder value. M&As often fail due to poor leadership. Th...

Feminism and Postmodernism in Paloma Díaz-Mas's "The World According to Valdés" and "In Search of a Portrait"

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Fuencisla Zomeño

2002-06-01

Full Text Available This paper analyzes the influence of postmodernism in Paloma Díaz-Mas's feminist approach through two short stories, "The World According to Valdés," and "In Search of a Portrait." The political situation after Franco's death embraced democracy which allowed writers to pay more attention to intellectual concerns. Women writers steered the radical positions of the 1970s toward a more philosophical and intellectual analysis of reality and artistic expression during the eighties. In these two short stories, Díaz-Mas addresses women's issues by questioning the scope of modernist and humanist views. She criticizes the modernist concept of unity (text/identity pointing out the discrimination that this unity creates in art, through the distinction between high art/mass culture; and in the individual, through the distinction between feminine/masculine and high/low. Even though Díaz-Mas's main characters in the two stories are women, she does not solely focus on defending them, but she contrasts present and past to parody the causes which produce discrimination in the social and artistic processes.

Clinically relevant incidental cardiovascular findings in CT examinations; Klinisch relevante kardiovaskulaere Zufallsbefunde bei CT-Untersuchungen

Energy Technology Data Exchange (ETDEWEB)

Voigt, P.; Fahnert, J.; Kahn, T.; Surov, A. [Universitaetsklinikum Leipzig, Klinik fuer Diagnostische und Interventionelle Radiologie, Leipzig (Germany); Schramm, D.; Bach, A.G. [Universitaetsklinikum Halle (Saale), Klinik fuer Radiologie, Halle (Germany)

2017-04-15

Incidental cardiovascular findings are a frequent phenomenon in computed tomography (CT) examinations. As the result of a dedicated PubMed search this article gives a systemic overview of the current literature on the most important incidental cardiovascular findings, their prevalence and clinical relevance. The majority of incidental cardiovascular findings are of only low clinical relevance; however, highly relevant incidental findings, such as aortic aneurysms, thromboses and thromboembolic events can also occasionally be found, especially in oncology patients. The scans from every CT examination should also be investigated for incidental findings as they can be of decisive importance for the further clinical management of patients, depending on their clinical relevance. (orig.) [German] Inzidentelle kardiovaskulaere Befunde sind ein haeufiges Phaenomen bei CT-Untersuchungen. Mit dieser Arbeit soll nach gezielter PubMed-Recherche ein systematischer Literaturueberblick ueber die wichtigsten kardiovaskulaeren Zufallsbefunde sowie deren Haeufigkeit und klinische Relevanz gegeben werden. Die Mehrzahl der inzidentellen kardiovaskulaeren Befunde sind klinisch nur von untergeordneter Bedeutung, allerdings werden immer wieder auch hochgradig relevante Zufallsbefunde wie beispielsweise Aortenaneurysmata oder - gerade bei onkologischen Patienten - Thrombosen und thrombembolische Ereignisse detektiert. Jede CT-Untersuchung sollte gezielt nach inzidentellen Befunden durchsucht werden, da diese je nach klinischer Relevanz von entscheidender Bedeutung fuer das weitere klinische Management des Patienten sein koennen. (orig.)

Evaluation of the energy potential, biogenesis and essential characteristics of the geothermal submarine systems in Mexico; Evaluacion del potencial, biogenesis y caracteristicas esenciales de los sistemas geotermicos submarinos en Mexico

Energy Technology Data Exchange (ETDEWEB)

Suarez Arriaga, Mario Cesar [Universidad Michoacana de San Nicolas Hidalgo, Morelia, Michoacan (Mexico)

2004-12-01

profundidad, hasta los recursos geotermicos profundos, a mas de 3000 metros de profundidad. Las fuentes geotermicas no tradicionales incluyen las partes profundas y los limites de los reservorios hidrotermales tradicionales, los sistemas en roca seca o humeda caliente, los yacimientos geopresurizados del Golfo de Mexico y los sistemas submarinos hidrotermales observados principalmente en la costa norte mexicana del Oceano Pacifico. La energia geotermica submarina surge por la existencia de rupturas profundas en el fondo marino, a lo largo de los centros de dispersion oceanicos entre las placas tectonicas. Estos sistemas tienen una longitud total aproximada de 65,000 Km. en la corteza oceanica. Hay dos tipos basicos de sistemas marinos existentes en el Golfo de California: los recursos profundos, localizados a lo largo de las cordilleras entre las placas de la corteza oceanica a mas de 2000 m bajo el nivel del mar, y los recursos poco profundos cerca de las plataformas continentales, entre 20 y 50 metros de profundidad. El calor submarino poco profundo tambien se relaciona con fallas y fracturas en el fondo del mar cerca de algunas costas. Este subsistema se encuentra tambien en la costa de Punta Banda en Ensenada, Baja California. El potencial preliminar de la energia contenida en tales reservorios se estima, en promedio, en 1120 MWt por cada km3 de roca submarina. Las caracteristicas quimicas especificas de las aguas hidrotermales encontradas en esos sistemas oceanicos indican que las interacciones agua-roca, ocurren bajo condiciones de presion y temperatura altas. La energia geotermica submarina soporta ricas variedades de comunidades biologicas a profundidades donde las plantas no tienen acceso a la luz solar para realizar la fotosintesis. Hay indicios de que las posibles condiciones para la sintesis de sustancias y elementos quimicos necesaria para el origen de la vida primitiva, pudieron ser los sistemas hidrotermales submarinos.

MODELAGEM DE UM SISTEMA MULTIAGENTE DE APOIO À PBL UTILIZANDO A METODOLOGIA MAS-COMMONKADS+

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Laysa Mabel de Oliveira Fontes

2014-10-01

Full Text Available A aprendizagem baseada em problema (Problem-Based Learning - PBL é um método no qual os estudantes aprendem através da resolução de um problema que, em geral, não possui uma solução trivial e uma única solução correta. A PBL destaca o trabalho em equipe como um dos principais requisitos para o sucesso do processo de aprendizagem, ou seja, a colaboração é essencial. No entanto, a implantação de um método de ensino com base na PBL não é uma tarefa trivial. Em Ambientes Virtuais de Aprendizagem (AVAs, a complexidade de implantação deste método é ainda maior, pois o facilitador nem sempre pode detectar possíveis problemas na colaboração, nem possui todas as informações necessárias para aplicar as técnicas de aprendizagem deste método. Desta forma, este artigo apresenta o processo de modelagem de um Sistema Multiagente (SMA de apoio à PBL. O SMA proposto foi modelado utilizando a metodologia MAS-CommonKADS+, que consiste em uma extensão da metodologia MAS-CommonKADS.

The Third Man Argument in the Parmenides: reflexões sobre um texto seminal

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Guilherme da Costa Assunção Cecílio

2015-12-01

Full Text Available O artigo de Vlastos intitulado “The Third Man Argument in the Parmenides” é um marco nos estudos platônicos; neste o autor individuou duas premissas implícitas do argumento do Terceiro Homem, as quais têm relevantes consequências não apenas para o Parmênides, mas para a Teoria das Ideias como um todo. Este trabalho pretende discutir os principais aspectos da rica interpretação proposta por Vlastos no referido artigo.

1H HR-MAS NMR Spectroscopy and the Metabolite Determination of Typical Foods in Mediterranean Diet

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Carmelo Corsaro

2015-01-01

Full Text Available NMR spectroscopy has become an experimental technique widely used in food science. The experimental procedures that allow precise and quantitative analysis on different foods are relatively simple. For a better sensitivity and resolution, NMR spectroscopy is usually applied to liquid sample by means of extraction procedures that can be addressed to the observation of particular compounds. For the study of semisolid systems such as intact tissues, High-Resolution Magic Angle Spinning (HR-MAS has received great attention within the biomedical area and beyond. Metabolic profiling and metabolism changes can be investigated both in animal organs and in foods. In this work we present a proton HR-MAS NMR study on the typical vegetable foods of Mediterranean diet such as the Protected Geographical Indication (PGI cherry tomato of Pachino, the PGI Interdonato lemon of Messina, several Protected Designation of Origin (PDO extra virgin olive oils from Sicily, and the Traditional Italian Food Product (PAT red garlic of Nubia. We were able to identify and quantify the main metabolites within the studied systems that can be used for their characterization and authentication.

A new aluminium-hydrate species in hydrated Portland cements characterized by 27Al and 29Si MAS NMR spectroscopy

International Nuclear Information System (INIS)

Andersen, Morten Daugaard; Jakobsen, Hans J.; Skibsted, Jorgen

2006-01-01

Recent 27 Al MAS NMR studies of hydrated Portland cements and calcium-silicate-hydrate (C-S-H) phases have shown a resonance from Al in octahedral coordination, which cannot be assigned to the well-known aluminate species in hydrated Portland cements. This resonance, which exhibits the isotropic chemical shift δ iso = 5.0 ppm and the quadrupole product parameter P Q = 1.2 MHz, has been characterized in detail by 27 Al MAS and 27 Al{ 1 H} CP/MAS NMR for different hydrated white Portland cements and C-S-H phases. These experiments demonstrate that the resonance originates from an amorphous or disordered aluminate hydrate which contains Al(OH) 6 3- or O x Al(OH) 6-x (3+x)- units. The formation of the new aluminate hydrate is related to the formation of C-S-H at ambient temperatures, however, it decomposes by thermal treatment at temperatures of 70-90 o C. From the experiments in this work it is proposed that the new aluminate hydrate is either an amorphous/disordered aluminate hydroxide or a calcium aluminate hydrate, produced as a separate phase or as a nanostructured surface precipitate on the C-S-H phase. Finally, the possibilities of Al 3+ for Ca 2+ substitution in the principal layers and interlayers of the C-S-H structure are discussed

Badania jakości regeneratu ze zużytych mas ze spoiwem organicznym

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R. Dańko

2012-12-01

Full Text Available W publikacji przedstawiono uzupełniające metody badań oraz aparaturę do oceny jakości regeneratu i tych właściwości masformierskich ze spoiwami utwardzanymi chemicznie, przygotowywanych z regeneratem, które są istotne dla kompleksowej oceny procesurecyklingu osnowy. Nowoczesne systemy oceny mas formierskich wymagają bardziej wnikliwego podejścia do czynników decydującychzarówno o ich przydatności technologicznej jak również o wpływie na otaczające środowisko naturalne. W tym kontekście pełna ocenajakości zregenerowanej osnowy wykracza poza zwyczajowo stosowane metody instrumentalne i wymaga ich uzupełnienia o bardziejzaawansowane aparaturowo metody badawcze. Pozwala to szerzej spojrzeć na ocenę zregenerowanej osnowy, zarówno w aspekcie jejużycia do sporządzania mas formierskich, jako substytutu świeżego piasku, ale także pod kątem ochrony środowiska. Do takichnowoczesnych metod można zaliczyć między innymi analizę ziarnową regeneratu za pomocą dyfrakcji laserowej, a także ocenęgazotwórczości masy formierskiej oraz identyfikację rodzaju emitowanych gazów i zawartości w nich gazów z grupy BTEX, które sąszczególnie niebezpieczne z punktu widzenia BHP.

Lipid bilayer-bound conformation of an integral membrane beta barrel protein by multidimensional MAS NMR

International Nuclear Information System (INIS)

Eddy, Matthew T.; Su, Yongchao; Silvers, Robert; Andreas, Loren; Clark, Lindsay; Wagner, Gerhard; Pintacuda, Guido; Emsley, Lyndon; Griffin, Robert G.

2015-01-01

The human voltage dependent anion channel 1 (VDAC) is a 32 kDa β-barrel integral membrane protein that controls the transport of ions across the outer mitochondrial membrane. Despite the determination of VDAC solution and diffraction structures, a structural basis for the mechanism of its function is not yet fully understood. Biophysical studies suggest VDAC requires a lipid bilayer to achieve full function, motivating the need for atomic resolution structural information of VDAC in a membrane environment. Here we report an essential step toward that goal: extensive assignments of backbone and side chain resonances for VDAC in DMPC lipid bilayers via magic angle spinning nuclear magnetic resonance (MAS NMR). VDAC reconstituted into DMPC lipid bilayers spontaneously forms two-dimensional lipid crystals, showing remarkable spectral resolution (0.5–0.3 ppm for 13 C line widths and <0.5 ppm 15 N line widths at 750 MHz). In addition to the benefits of working in a lipid bilayer, several distinct advantages are observed with the lipid crystalline preparation. First, the strong signals and sharp line widths facilitated extensive NMR resonance assignments for an integral membrane β-barrel protein in lipid bilayers by MAS NMR. Second, a large number of residues in loop regions were readily observed and assigned, which can be challenging in detergent-solubilized membrane proteins where loop regions are often not detected due to line broadening from conformational exchange. Third, complete backbone and side chain chemical shift assignments could be obtained for the first 25 residues, which comprise the functionally important N-terminus. The reported assignments allow us to compare predicted torsion angles for VDAC prepared in DMPC 2D lipid crystals, DMPC liposomes, and LDAO-solubilized samples to address the possible effects of the membrane mimetic environment on the conformation of the protein. Concluding, we discuss the strengths and weaknesses of the reported

A preliminary study of the relation between adsorption and CP-MAS-NMR characteristics of fused silica model substrates

NARCIS (Netherlands)

Scholten, A.B.; Janssen, J.G.M.; Haan, de J.W.; Cramers, C.A.M.G.; Sandra, P.J.F.; Devos, G.; Sandra, P.

1993-01-01

The fumed silica model substrate Aerosil was trimethylsilylated to different extents and studied by the combination of IGC and 29Si CP-MAS-NMR. Dihydroxydisiloxane groups were shown to be chemically more reactive than monohydroxytrisiloxane groups. Chromatographic experiments showed that these

Angiotensin-converting enzyme 2, Angiotensin-(1-7) and Mas: new players of the Renin Angiotensin System

DEFF Research Database (Denmark)

Santos, Robson AS; Ferreira, Anderson J; Verano-Braga, Thiago

2013-01-01

/proliferative arm of the RAS consisting of ACE, Ang II and AT1 receptor. In this brief review, we will discuss recent findings related to the biological role of the ACE2/Ang-(1-7)/Mas arm in the cardiovascular and renal systems, as well as in metabolism. In addition, we will highlight the potential interactions...

Reklāmas ietekme uz patērētāju izvēles veikšanā

OpenAIRE

Asejevs, Aleksandrs

2012-01-01

Bakalaura darba tēma izvēlēta „Reklāmas ietekme uz patērētāju izvēles veikšanā”. Pastiprinoties konkurencei valstu iekšzemes tirgū, uzņēmumi savas preces un pakalpojumus virza globālajā tirgū. Starptautiskajā mārketingā reklāma tiek izmantota kā viens no mārketinga komunikācijas līdzekļiem, ar kura palīdzību uzņēmumi patērētajiem virzītu savas preces un pakalpojumus. Darba mērķis: balstoties uz veiktās aptaujas rezultātiem, izstrādāt priekšlikumus reklāmas pilnveidošanai Latvijā. Lai...

1H MAS NMR (magic-angle spinning nuclear magnetic resonance) techniques for the quantitative determination of hydrogen types in solid catalysts and supports.

Science.gov (United States)

Kennedy, Gordon J; Afeworki, Mobae; Calabro, David C; Chase, Clarence E; Smiley, Randolph J

2004-06-01

Distinct hydrogen species are present in important inorganic solids such as zeolites, silicoaluminophosphates (SAPOs), mesoporous materials, amorphous silicas, and aluminas. These H species include hydrogens associated with acidic sites such as Al(OH)Si, non-framework aluminum sites, silanols, and surface functionalities. Direct and quantitative methodology to identify, measure, and monitor these hydrogen species are key to monitoring catalyst activity, optimizing synthesis conditions, tracking post-synthesis structural modifications, and in the preparation of novel catalytic materials. Many workers have developed several techniques to address these issues, including 1H MAS NMR (magic-angle spinning nuclear magnetic resonance). 1H MAS NMR offers many potential advantages over other techniques, but care is needed in recognizing experimental limitations and developing sample handling and NMR methodology to obtain quantitatively reliable data. A simplified approach is described that permits vacuum dehydration of multiple samples simultaneously and directly in the MAS rotor without the need for epoxy, flame sealing, or extensive glovebox use. We have found that careful optimization of important NMR conditions, such as magnetic field homogeneity and magic angle setting are necessary to acquire quantitative, high-resolution spectra that accurately measure the concentrations of the different hydrogen species present. Details of this 1H MAS NMR methodology with representative applications to zeolites, SAPOs, M41S, and silicas as a function of synthesis conditions and post-synthesis treatments (i.e., steaming, thermal dehydroxylation, and functionalization) are presented.

Genotyping-by-sequencing (GBS), an ultimate marker-assisted selection (MAS) tool to accelerate plant breeding

OpenAIRE

He, Jiangfeng; Zhao, Xiaoqing; Laroche, André; Lu, Zhen-Xiang; Liu, HongKui; Li, Ziqin

2014-01-01

Marker-assisted selection (MAS) refers to the use of molecular markers to assist phenotypic selections in crop improvement. Several types of molecular markers, such as single nucleotide polymorphism (SNP), have been identified and effectively used in plant breeding. The application of next-generation sequencing (NGS) technologies has led to remarkable advances in whole genome sequencing, which provides ultra-throughput sequences to revolutionize plant genotyping and breeding. To further broad...

Genotyping by sequencing (GBS, an ultimate marker-assisted selection (MAS tool to accelerate plant breeding

Directory of Open Access Journals (Sweden)

Jiangfeng eHe

2014-09-01

Full Text Available Marker-assisted selection (MAS refers to the use of molecular markers to assist phenotypic selections in crop improvement. Several types of molecular markers, such as single nucleotide polymorphism (SNP, have been identified and effectively used in plant breeding. The application of next-generation sequencing (NGS technologies has led to remarkable advances in whole genome sequencing, which provides ultra-throughput sequences to revolutionize plant genotyping and breeding. To further broaden NGS usages to large crop genomes such as maize and wheat, genotyping by sequencing (GBS has been developed and applied in sequencing multiplexed samples that combine molecular marker discovery and genotyping. GBS is a novel application of NGS protocols for discovering and genotyping SNPs in crop genomes and populations. The GBS approach includes the digestion of genomic DNA with restriction enzymes followed by the ligation of barcode adapter, PCR amplification and sequencing of the amplified DNA pool on a single lane of flow cells. Bioinformatic pipelines are needed to analyze and interpret GBS datasets. As an ultimate MAS tool and a cost-effective technique, GBS has been successfully used in implementing genome-wide association study (GWAS, genomic diversity study, genetic linkage analysis, molecular marker discovery and genomic selection (GS under a large scale of plant breeding programs.

Genotyping-by-sequencing (GBS), an ultimate marker-assisted selection (MAS) tool to accelerate plant breeding.

Science.gov (United States)

He, Jiangfeng; Zhao, Xiaoqing; Laroche, André; Lu, Zhen-Xiang; Liu, HongKui; Li, Ziqin

2014-01-01

Marker-assisted selection (MAS) refers to the use of molecular markers to assist phenotypic selections in crop improvement. Several types of molecular markers, such as single nucleotide polymorphism (SNP), have been identified and effectively used in plant breeding. The application of next-generation sequencing (NGS) technologies has led to remarkable advances in whole genome sequencing, which provides ultra-throughput sequences to revolutionize plant genotyping and breeding. To further broaden NGS usages to large crop genomes such as maize and wheat, genotyping-by-sequencing (GBS) has been developed and applied in sequencing multiplexed samples that combine molecular marker discovery and genotyping. GBS is a novel application of NGS protocols for discovering and genotyping SNPs in crop genomes and populations. The GBS approach includes the digestion of genomic DNA with restriction enzymes followed by the ligation of barcode adapter, PCR amplification and sequencing of the amplified DNA pool on a single lane of flow cells. Bioinformatic pipelines are needed to analyze and interpret GBS datasets. As an ultimate MAS tool and a cost-effective technique, GBS has been successfully used in implementing genome-wide association study (GWAS), genomic diversity study, genetic linkage analysis, molecular marker discovery and genomic selection under a large scale of plant breeding programs.

"Okarte" reklāmas kampaņas "Onedēļa" komunikācija internetā 2013. gadā

OpenAIRE

Volonts, Kaspars

2013-01-01

Bakalaura darba tēma ir “"Okarte" reklāmas kampaņa "Onedēļa" komunikācija internetā 2013. gadā”. Tēma par zīmola komunikāciju interneta vidē ir aktuāla, jo interneta lietotāju skaits Latvijā aug katru gadu. Latvijā strādājošiem zīmoliem arvien biežāk jāsaskarās ar savu mērķauditoriju, izmantojot internetu. Bakalaura darba pētījuma mērķis ir izpētīt kā “Latvijas Mobilā Telefona” priekšapmaksas kartes “Okarte” zīmols komunicē savu tēlu un reklāmas kampaņu interneta vidē 2013.gadā. Ša...

27Al Magic Angle Spinning–Nuclear Magnetic Resonance (MAS-NMR) Analyses Applied to Historical Mortars

Czech Academy of Sciences Publication Activity Database

Hanzlíček, Tomáš; Perná, Ivana; Brus, Jiří

2013-01-01

Roč. 7, č. 2 (2013), s. 153-164 ISSN 1558-3058 R&D Projects: GA AV ČR IAA300460702 Institutional research plan: CEZ:AV0Z30460519; CEZ:AV0Z40500505 Keywords : mortars * magic angle spinning –nuclear magnetic resonance (MAS-NMR) in solid state * alumina-silicates Subject RIV: DM - Solid Waste and Recycling Impact factor: 0.714, year: 2013 http://www.tandfonline.com/doi/abs/10.1080/15583058.2011.624253

Active and passive fire protection system in academic building KH. Mas Mansur, Islamic University of Indonesia

Directory of Open Access Journals (Sweden)

Suryoputro M. Ragil

2018-01-01

Full Text Available According to the theory of fire triangle, the existence of combustible materials, heat, and oxygen can cause fire disaster. KH. Mas Mansur building, Islamic University of Indonesia has a fire protection, but rarely to be checked regularly and the number of equipment is less standard as well as the lack of an evacuation route map to facilitate the evacuation process. Inside the building also does not provide safety signs such as the evacuation directions, exit, and warning in case of fire. Therefore, researchers analysed the infrastructure of prevention and control in the building KH. Mas Mansur. Researchers used the method of observation, interviews, and checklist to know the condition directly, and compare with the standard regulations. Results concordance rate of existing infrastructure is 67% fire extinguisher, hydrant box 56%, 71% alarms, sprinkler 0%, 40% detectors, emergency doors 71%, 50% emergency stairs, assembly point 0% and directions 0%. The current results were below the standard of at least 80%. As for recommendations, researchers create a new evacuation map then put the existing infrastructure according to standard regulations, and it had consulted with the specialist of Occupational Safety and Health in the field of fire.

Electromagnetic Scattering Analysis of Coated Conductors With Edges Using the Method of Auxiliary Sources (MAS) in Conjunction With the Standard Impedance Boundary Condition (SIBC)

DEFF Research Database (Denmark)

Anastassiu, H.T.; D.I.Kaklamani, H.T.; Economou, D.P.

2002-01-01

A novel combination of the method of auxiliary sources (MAS) and the standard impedance boundary condition (SIBC) is employed in the analysis of transverse magnetic (TM) plane wave scattering from infinite, coated, perfectly conducting cylinders with square cross sections. The scatterer is initia......A novel combination of the method of auxiliary sources (MAS) and the standard impedance boundary condition (SIBC) is employed in the analysis of transverse magnetic (TM) plane wave scattering from infinite, coated, perfectly conducting cylinders with square cross sections. The scatterer...

Antioxidant capacity of cornelian cherry (Cornus mas L.) - comparison between permanganate reducing antioxidant capacity and other antioxidant methods.

Science.gov (United States)

Popović, Boris M; Stajner, Dubravka; Slavko, Kevrešan; Sandra, Bijelić

2012-09-15

Ethanol extracts (80% in water) of 10 cornelian cherry (Cornus mas L.) genotypes were studied for antioxidant properties, using methods including DPPH(), ()NO, O(2)(-) and ()OH antiradical powers, FRAP, total phenolic and anthocyanin content (TPC and ACC) and also one relatively new, permanganate method (permanganate reducing antioxidant capacity-PRAC). Lipid peroxidation (LP) was also determined as an indicator of oxidative stress. The data from different procedures were compared and analysed by multivariate techniques (correlation matrix calculation and principal component analysis (PCA)). Significant positive correlations were obtained between TPC, ACC and DPPH(), ()NO, O(2)(-), and ()OH antiradical powers, and also between PRAC and TPC, ACC and FRAP. PCA found two major clusters of cornelian cherry, based on antiradical power, FRAP and PRAC and also on chemical composition. Chemometric evaluation showed close interdependence between PRAC method and FRAP and ACC. There was a huge variation between C. mas genotypes in terms of antioxidant activity. Copyright © 2012 Elsevier Ltd. All rights reserved.

Brain angiotensin-(1-7)/Mas axis: A new target to reduce the cardiovascular risk to emotional stress.

Science.gov (United States)

Fontes, Marco Antônio Peliky; Martins Lima, Augusto; Santos, Robson Augusto Souza dos

2016-04-01

Emotional stress is now considered a risk factor for several diseases including cardiac arrhythmias and hypertension. It is well known that the activation of neuroendocrine and autonomic mechanisms features the response to emotional stress. However, its link to cardiovascular diseases and the regulatory mechanisms involved remain to be further comprehended. The renin-angiotensin system (RAS) plays an important role in homeostasis on all body systems. Specifically in the brain, the RAS regulates a number of physiological aspects. Recent data indicate that the activation of angiotensin-converting enzyme/angiotensin II/AT1 receptor axis facilitates the emotional stress responses. On the other hand, growing evidence indicates that its counterregulatory axis, the angiotensin-converting enzyme 2 (ACE2)/(Ang)iotensin-(1-7)/Mas axis, reduces anxiety and attenuates the physiological responses to emotional stress. The present review focuses on angiotensin-(1-7)/Mas axis as a promising target to attenuate the physiological response to emotional stress reducing the risk of cardiovascular diseases. Copyright © 2015 Elsevier Ltd. All rights reserved.

Análisis comparativo de las variables más relevantes para el desarrollo

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Roberto Jiménez Gómez

2012-07-01

Full Text Available Resumen En este artículo se analiza la evolución histórica de variables que han sido consideradas como relevantes para el desarrollo de Brasil, Chile, Corea del Sur, Finlandia e Irlanda, países donde en las últimas décadas se ha realizado una serie de transformaciones de índole social y económica que son interesantes contrastar con el desarrollo seguido por Costa Rica. A través de un análisis comparativo con estos países, se trata de identificar las lecciones aprendidas y las diferencias entre los indicadores de las variables estudiadas para inferir algunas conclusiones de su evolución en el largo plazo y su implicación en el desarrollo de los países en cuestión. Palabras Claves: Desarrollo, ingreso nacional bruto, competitividad, educación, desarrollo humano. Abstract This article analyzes the historical evolution of some variables that have been considered as relevant to the development of Brazil, Chile, South Korea, Finland and Ireland, which in recent decades made transformations on social, economic and a combination of both fields that can serve as a guide for other developing countries like Costa Rica. Through a comparative analysis of these countries, will be possible to take a note about the lessons learned and the differences between the selected indicators, and in fact, this scenario reflects the changes made and the position where you will find the country. Keywords: Development, GNI, competitiveness, education, human development.

Interneta vietne "YouTube" kā reklāmas un infoizklaides kanāls 2008. gada pirmajā ceturksnī

OpenAIRE

Reinberga, Ieva

2008-01-01

Bakalaura darba mērķis ir izpētīt, kādus komunikācijas uzdevumus veikusi interneta vietne www.YouTube.com – reklāmas, izklaides, informācijas vai citus - laika periodā no 2008. gada 1. janvāra līdz 2008. gada 31. martam, konstatējot vietnes saturā reklāmai, izklaidei un informācijai raksturīgās iezīmes. Pētījums tiek balstīts uz reklāmas, infoklaides, interneta tehnoloģiju, spēles teorijas, populārās kultūras teorijām, kā arī, atsaucoties uz līdzšinējām analīzēm par vietnes YouTube vēstur...

MUNICIPAL ENVIRONMENTAL MANAGEMENT: A PROPOSAL OF INSTRUMENTS FOR DIAGNOSIS OF PUBLIC ENVIRONMENTAL POLICIES IN THE METROPOLITAN AREA OF SALVADOR (MAS

Directory of Open Access Journals (Sweden)

Tânia Cristina Azevedo

2016-04-01

Full Text Available The aim in this paper is to propose a model for mapping strategies of municipal environmental management for local environmental public policies. To do so, the study adopted a theoretical approach. More specifically, there is discussion on the concepts of public policies and the scenario of the Brazilian municipal environmental management, a brief history of the aspects that involve current national environmental policies. Methodologically, a bibliographical study was carried out through a literature review, which enabled the proposal of instruments for mapping actions and strategies of environmental management in the municipalities of the Metropolitan Area of Salvador (MAS. This theoretical study resulted in the creation of a model form that will be used by empirical researches for mapping the environmental public policies in the MAS City Halls.

New perspectives of 19F MAS NMR in the characterization of amorphous forms of atorvastatin in dosage formulations

Czech Academy of Sciences Publication Activity Database

Brus, Jiří; Urbanová, Martina; Šeděnková, Ivana; Brusová, H.

2011-01-01

Roč. 409, 1/2 (2011), s. 62-74 ISSN 0378-5173 R&D Projects: GA MŠk 2B08021 Institutional research plan: CEZ:AV0Z40500505 Keywords : 19F MAS NMR * factor analysis * polymorphism Subject RIV: CB - Analytical Chemistry, Separation Impact factor: 3.350, year: 2011

KrasMAS: Implementation of a nuclear material computerized accounting system at the Mining and Chemical Combine through the Russian/US cooperative MPC and A program

International Nuclear Information System (INIS)

Dorofeev, K.V.; Zhidkov, V.V.; Martinez, B.J.; Perry, R.T.; Scott, S.C.

1998-01-01

The Russian/US Mining and Chemical Combine (Gorno-Kimichesky Kombinat, GKhK, also referred to as Krasnoyarsk-26) Material Protection, Control and Accounting (MPC and A) project was initiated in June 1996. A critical component of the ongoing cooperative MPC and A enhancements at the GKhK is the implementation of a computerized nuclear material control and accountability (MC and A) system. This system must meet the MC and A requirements of the GKhK by integrating the information generated by numerous existing and new MC and A components in place at the GKhK (e.g., scales, bar-code equipment, NDA measurement systems). During the first phase of this effort, the GKhK adapted CoreMAS (developed at Los Alamos National Laboratory) for use in the PuO 2 storage facility. This included formulation of Web-based user interfaces for plant personnel, Russification of the existing user interface, and at the functional level, modification of the CoreMAS stored procedures. The modified system is referred to as KrasMAS and builds upon completed work on CoreMAS. Ongoing efforts include adding GKhK specific report forms and expanding the functionality of the system for implementation at the radiochemical processing and reactor plants of the GKhK. Collaborations with other Russian facilities for appropriate parts of these efforts will be pursued

PEMANFAATAN TANAMAN ATRAKTAN MENGENDALIKAN HAMA KEONG MAS PADI

Directory of Open Access Journals (Sweden)

Ameilia Zuliyanti Siregar

2018-01-01

In Indonesia, many plantation as use as beneficial plants. This study aims to obtain an effective formula that can be used as a biopesticide to control snail pests during the vegetative phase from May to July 2017 using random non-factorial methods at two rice planting locations in the Village Lae parira, Dairi, North Sumatra. Design with 6 treatments and 3 replicates (ie control, neem leaves (Azadirachta indica, tobacco leaf (Nicotiana tabacum, sweet potato leaf (Manihot glaziovii, noni fruit, Morinda citrifolia, and betel nut (Areca catechu and papaya (Carica papaya as an eco-friendly herbaceous and biopesticide. Based on the study recorded in sampling for 7 days with 6 treatments had significant effect on the percentage affected by the clump of rice attacked and the percentage of death. Pearson correlation value recorded percentage of death and percentage of impacted  showed a very significant relationship. Neem is the best biopesticide in controlling mollusicides, followed by betel nuts, tobacco, poisonous yams and noni. Death of 100% snail mas will prevent damage to the clump of rice plants Dairi, North Sumatra. All biopesticide treatments were tested to control snail pests in rice plants that will increase agicultural productivity in maintaining food security in Dairi, North Sumatra.

Mobilā reklāma kā mobilo priekšapmaksas sarunu karšu reklāmas komunikācijas instruments: Y paaudzes radītās iespējas

OpenAIRE

Daudze, Anita

2009-01-01

Bakalaura darba temats ir „Mobilā reklāma kā mobilo priekšapmaksas sarunu karšu reklāmas komunikācijas instruments: Y paaudzes radītās iespējas”. Pētījuma problēma ir mobilās reklāmas piemērotība komunikācijai ar Y paaudzes pārstāvjiem – mobilo priekšapmaksas sarunu karšu lietotājiem. Darba teorētiskais pamatojums balstīts uz Y paaudzes jēdziena izpratni, mobilā telefona kā reklāmas komunikācijas kanāla aplūkošanu, kā arī mobilā mārketinga un reklāmas pamatprincipu izklāstu. Darbā izman...

Un lote de armamento ibérico procedente de la necrópolis del Mas de Barberán (Nogueruelas, Teruel

Directory of Open Access Journals (Sweden)

Izquierdo Peraile, Isabel

1999-12-01

Full Text Available In this paper we publish an Ibenan set of weapons -swords, lances and dagger essentially-, coming from the cemetery of the settlement so-called Mas de Barberán (Nogueruelas, Teruel. An anthropomorphic stele with an inscription recently studied is associated to the same site. This stele represents an armed with disk-cuirass masculine personage.

En este trabajo presentamos un lote inédito de armamento ibérico espadas, lanzas y puñal esencialmente procedente de la necrópolis correspondiente al poblado del Mas de Barberán (Nogueruelas, Teruel. Al mismo yacimiento se asocia la estela antropomorfa con inscripción que representa un personaje masculino armado con disco-coraza, recientemente estudiada.

Distributed Cooperation Solution Method of Complex System Based on MAS

Science.gov (United States)

Weijin, Jiang; Yuhui, Xu

To adapt the model in reconfiguring fault diagnosing to dynamic environment and the needs of solving the tasks of complex system fully, the paper introduced multi-Agent and related technology to the complicated fault diagnosis, an integrated intelligent control system is studied in this paper. Based on the thought of the structure of diagnostic decision and hierarchy in modeling, based on multi-layer decomposition strategy of diagnosis task, a multi-agent synchronous diagnosis federation integrated different knowledge expression modes and inference mechanisms are presented, the functions of management agent, diagnosis agent and decision agent are analyzed, the organization and evolution of agents in the system are proposed, and the corresponding conflict resolution algorithm in given, Layered structure of abstract agent with public attributes is build. System architecture is realized based on MAS distributed layered blackboard. The real world application shows that the proposed control structure successfully solves the fault diagnose problem of the complex plant, and the special advantage in the distributed domain.

Sistema de atribución de responsabilidad penal a las personas jurídicas

OpenAIRE

Pérez Arias, Jacinto

2013-01-01

La presente tesis aborda el análisis del modelo de atribución de responsabilidad penal de las personas jurídica en el ordenamiento jurídico español, establecido mediante LO 5/2010 de Reforma del Código Penal. Además de unas breves notas sobre la evolución legislativa, histórica y de derecho comparado, se estudian los problemas mas relevantes de la responsabilidad penal corporativa, como la incapacidad de acción y culpabilidad de la persona jurídica, aspectos diferenciadores entre el derecho a...

Elvis Presley y la tradicion del cine musical de Hollywood

OpenAIRE

Carrega, Jorge

2013-01-01

Por ter sido publicado numa revista espanhola, o artigo apresenta o título e o resumo em castelhano, mas o texto está em português. Depreciadas por la crítica cinematográfica, las películas protagonizadas por Elvis Presley son ejemplos relevantes de uno de los principales subgéneros del cine musical de Hollywood, la comedia musical protagonizada por intérpretes de la canción popular tornados actores como Bing Crosby, Frank Sinatra, Carmen Miranda, Doris Day y Dean Martin. Pioneros en...

Digital influencers e o comportamento dos seguidores no Instagram: um estudo exploratório

OpenAIRE

Pereira, Cláudia Sofia Gomes

2017-01-01

Atualmente as redes sociais, na qual se inclui o Instagram, assumem um papel relevante no quotidiano, não só, dos indivíduos, mas cada vez mais no quotidiano das empresas e marcas, que tiveram de repensar as suas estratégias de marketing de forma a captar a atenção dos seus consumidores. Estar presente nas redes sociais e na internet em geral já não basta para que as empresas se mantenham no mercado cada vez mais concorrencial. O influencer marketing, ou marketing de influên...

Eu só quero chocolate : um estudo sobre a importância de aspectos pessoais e contextuais no consumo de chocolate

OpenAIRE

Smith, Marcia Baroni Nader Costa

2010-01-01

Muitos alimentos são conhecidos apenas em alguns grupos humanos, por diversas razões. Outros, entretanto, tornaram-se praticamente universais, sendo conhecidos e apreciados em quase todas as sociedades humanas com condições econômicas que permitam sua inclusão no âmbito do comércio internacional. Um deles, em especial, está no foco de interesse da presente investigação. Não se trata de alimento relevante para a composição dos hábitos alimentares cotidianos em qualquer grupo humano, mas que oc...

The angiotensin-(1-7/Mas axis counteracts angiotensin II-dependent and –independent pro-inflammatory signaling in human vascular smooth muscle cells

Directory of Open Access Journals (Sweden)

Laura A Villalobos

2016-12-01

Full Text Available Background and aims: Targeting inflammation is nowadays considered as a challenging pharmacological strategy to prevent or delay the development of vascular diseases. Angiotensin-(1-7 is a member of the renin-angiotensin system (RAS that binds Mas receptors and has gained growing attention in the last years as a regulator of vascular homeostasis. Here, we explored the capacity of Ang-(1-7 to counteract human aortic smooth muscle cell (HASMC inflammation triggered by RAS-dependent and –independent stimuli, such as Ang II or interleukin (IL-1.Methods and Results: In cultured HASMC, the expression of iNOS and the release of nitric oxide were stimulated by both Ang II and IL-1, as determined by Western blot and indirect immunofluorescence or the Griess method, respectively. iNOS induction was inhibited by Ang-(1-7 in a concentration-dependent manner. This effect was equally blocked by two different Mas receptor antagonists, A779 and D-Pro7-Ang-(1-7, suggesting the participation of a unique Mas receptor subtype. Using pharmacological inhibitors, the induction of iNOS was proven to rely on the consecutive upstream activation of NADPH oxidase and NF-B. Indeed, Ang-(1-7 markedly inhibited the activation of the NADPH oxidase and subsequently of NF-B, as determined by lucigenin-derived chemiluminiscence and electromobility shift assay, respectively.Conclusion: Ang-(1-7 can act as a counter-regulator of the inflammation of vascular smooth muscle cells triggered by Ang II, but also by other stimuli beyond the RAS. Activating or mimicking the Ang-(1-7/Mas axis may represent a pharmacological opportunity to attenuate the pro-inflammatory environment that promotes and sustains the development of vascular diseases.

Characterization of solid polymer dispersions of active pharmaceutical ingredients by 19F MAS NMR and factor analysis

Czech Academy of Sciences Publication Activity Database

Urbanová, Martina; Brus, Jiří; Šeděnková, Ivana; Policianová, Olivia; Kobera, Libor

2013-01-01

Roč. 100, 1 January (2013), s. 59-66 ISSN 1386-1425 R&D Projects: GA ČR GPP106/11/P426; GA MŠk 2B08021 Institutional research plan: CEZ:AV0Z40500505 Institutional support: RVO:61389013 Keywords : solid-state NMR * factor analysis * 19F MAS NMR Subject RIV: FR - Pharmacology ; Medidal Chemistry Impact factor: 2.129, year: 2013

Design of a grounding network in electrical substations. Materials and formulas the most used; Diseno de redes de tierra en subestaciones electricas. Materiales y formulas mas utilizadas

Energy Technology Data Exchange (ETDEWEB)

Raull Martin, J. [Facultad de Ingenieria, UNAM, Mexico, D.F. (Mexico)

2000-09-01

The purpose of this paper is to present a summarized version of the different types of construction of grounding systems, as well as their materials and formulas, which are necessary and useful for the design and building of a grounding network for medium to high voltage facilities. A description is also made of how to determine the electrical resistivity of subsoil layers with different physical characteristics. Several illustrative examples are also solved in the paper. [Spanish] El proposito de este articulo es presentar de manera resumida los diferentes tipos de construccion de los sistemas de tierra, asi como sus materiales y formulas, los cuales son necesarios y utiles para el diseno y edificacion de una red de tierra para instalaciones de mediana y alta tension. Se describe tambien la obtencion de las diferentes resistividades que presenta los terrenos con diversas caracteristicas fisicas. Asimismo, se solucionan ejercicios ilustrativos a lo largo del articulo.

Perilaku Alturisme Karyawan (Studi Kasus pada Mandor Perkebunan Sawit Perseroan Terbatas (PT.Tribuana Mas Kabupaten Tapin

Directory of Open Access Journals (Sweden)

Asty Wulandari

2017-11-01

Full Text Available One of the tasks of developing into adulthood is to work to meet the needs of his life. Technological advances, materialism, hedonism and the demands of the post-industrial society's needs make some people work brutally for what they want to be fulfilled. Even people are apathetic to the surrounding environment. Nevertheless, there are still a handful of employees who care about their environmental conditions by behaving altruism as happened in PT.Tribuana Mas (TBM. The purpose of this study is to describe employee altruism behavior and explore the factors that encourage employees to behave altruism. The results of the research on 3 employees of PT.Tribuana Mas plantation, Afdeling Juliet conducted qualitatively (nonparticipant observation and in-depth interview, altruism behavioral components are mostly the same, that is behaving helpfully, considering the rights and welfare of others, sharing and honesty. While the different components are seen from the behavior of donating & generosity and Cooperation. Components of altruism behavior reflected on the employees are also in accordance with the teachings of Islam, the namely charity with the foundation of god (ikhlas and there are still nuanced humanity. It is influenced by various factors, both situational (external and within (internal

Mas d’Is (Penàguila, Alicante: farms and Early Neolithic causewayed camps in the Serpis valley

Directory of Open Access Journals (Sweden)

Bernabeu Auban, Joan

2003-12-01

Full Text Available In this paper, results from recent archaeological field work carried out in the Neolithic village of Mas d’Is (Penàguila, Alicante are presented. We focus on an important set of domestic and monumental architectural structures. Integration of data from the site in a regional context allows us to rethink the social relations of the first farmers in the area. At the same time, radiocarbon data from our excavations show a finer chronology of the neolithization in Western Mediterranean, and what is more important to approach its historical process.

En este trabajo presentamos los resultados de los recientes trabajos llevados a cabo en la aldea neolítica de Mas d’Is (Penàguila, Alicante, centrándonos en las estructuras documentadas. La integración de los datos obtenidos en un contexto regional nos permiten plantear algunas reflexiones sobre la Arqueología social de los primeros agricultores, al tiempo que las dataciones radiocarbónicas permiten ir ajustando la cronología de la neolitización del Mediterráneo Occidental, así como el desarrollo de dicho proceso histórico.

Masonería y educación en la España contemporánea. Entre la tolerancia y el dogmatismo

Directory of Open Access Journals (Sweden)

José Ignacio Cruz Orozco

2017-01-01

Full Text Available En este trabajo vamos a centrarnos casi en exclusiva en las iniciativas planteadas por diversas entidades masónicas, ya sean potencias, logias regionales o talleres, más que en personas exponiendo solamente algunas de las experiencias más relevantes y que ejemplifican mejor las intervenciones y actuaciones de la masonería española en relación con los enfoques descritos. La visibilidad que han alcanzado otras parcelas e interpretaciones del comportamiento, de los masones en particular y de las iniciativas de la masonería como institución, no nos deben ocultar la faceta desarrollada en torno a la educación. ¿Qué importancia tuvo el proceso formativo llevado a cabo en los talleres masónicos a sus integrantes? ¿Qué lugar ocupó la masonería en el desarrollo educativo español?

A sucessão da empresa familiar : importância dos pactos parassociais e outros instrumentos relevantes para a preservação da empresa e da propriedade familiar

OpenAIRE

Nóbrega, João Rafael de Farias Furtado

2012-01-01

O tema A sucessão da empresa familiar: importância dos pactos parassociais e outros instrumentos relevantes para a preservação da empresa e da propriedade familiar foi escolhido em decorrência do panorama atual em que se encontram as empresas familiares brasileiras, considerando especialmente sua alta taxa de mortalidade, que é, contraditoriamente, tão elevada quanto sua importância no cenário econômico nacional. Por esse motivo, ao longo do trabalho, serão abordados temas relac...

1 H MAS NMR study of structure of hybrid siloxane-based networks and the interaction with quartz filler

Czech Academy of Sciences Publication Activity Database

Brus, Jiří; Škrdlantová, M.

2001-01-01

Roč. 281, 1-3 (2001), s. 61-71 ISSN 0022-3093 R&D Projects: GA ČR GA203/98/P290; GA AV ČR KSK2050602 Institutional research plan: CEZ:AV0Z4050913 Keywords : hybrid siloxane networks * 1 H MAS NMR spectroscopy * hydrogen bonds Subject RIV: CD - Macromolecular Chemistry Impact factor: 1.363, year: 2001

Optimal degree of protonation for {sup 1}H detection of aliphatic sites in randomly deuterated proteins as a function of the MAS frequency

Energy Technology Data Exchange (ETDEWEB)

Asami, Sam [Helmholtz-Zentrum Muenchen (HMGU), Deutsches Forschungszentrum fuer Gesundheit und Umwelt (HMGU) (Germany); Szekely, Kathrin; Schanda, Paul; Meier, Beat H. [Eidgenoessische Technische Hochschule Zuerich (ETH Zuerich) (Switzerland); Reif, Bernd, E-mail: reif@tum.de [Helmholtz-Zentrum Muenchen (HMGU), Deutsches Forschungszentrum fuer Gesundheit und Umwelt (HMGU) (Germany)

2012-10-15

The {sup 1}H dipolar network, which is the major obstacle for applying proton detection in the solid-state, can be reduced by deuteration, employing the RAP (Reduced Adjoining Protonation) labeling scheme, which yields random protonation at non-exchangeable sites. We present here a systematic study on the optimal degree of random sidechain protonation in RAP samples as a function of the MAS (magic angle spinning) frequency. In particular, we compare {sup 1}H sensitivity and linewidth of a microcrystalline protein, the SH3 domain of chicken {alpha}-spectrin, for samples, prepared with 5-25 % H{sub 2}O in the E. coli growth medium, in the MAS frequency range of 20-60 kHz. At an external field of 19.96 T (850 MHz), we find that using a proton concentration between 15 and 25 % in the M9 medium yields the best compromise in terms of sensitivity and resolution, with an achievable average {sup 1}H linewidth on the order of 40-50 Hz. Comparing sensitivities at a MAS frequency of 60 versus 20 kHz, a gain in sensitivity by a factor of 4-4.5 is observed in INEPT-based {sup 1}H detected 1D {sup 1}H,{sup 13}C correlation experiments. In total, we find that spectra recorded with a 1.3 mm rotor at 60 kHz have almost the same sensitivity as spectra recorded with a fully packed 3.2 mm rotor at 20 kHz, even though {approx}20 Multiplication-Sign less material is employed. The improved sensitivity is attributed to {sup 1}H line narrowing due to fast MAS and to the increased efficiency of the 1.3 mm coil.

Improved quantification of alite and belite in anhydrous Portland cements by 29Si MAS NMR: Effects of paramagnetic ions

DEFF Research Database (Denmark)

Poulsen, Søren Lundsted; Kocaba, Vanessa; Le Saoût, Gwenn

2009-01-01

The applicability, reliability, and repeatability of 29Si MAS NMR for determination of the quantities of alite (Ca3SiO5) and belite (Ca2SiO4) in anhydrous Portland cement was investigated in detail for 11 commercial Portland cements and the results compared with phase quantifications based...

Análisis del cambio de voto hacia el PSOE en las elecciones de 1993

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BELÉN BARREIRO

1998-01-01

Full Text Available en este articulo investigamos las transferencias de voto hacia el psoe que tuvieron lugar durante la campaña de las elecciones generales de 1993. nuestro objetivo de estudio es el grupo de votantes que antes de la campaña no manifestaron tener intencion de votar hacia el psoe pero que acabaron decidiendose por este partido. ese grupo fue crucial en la inesperada victoria final de los socialistas. mediante una encuesta de panel analizamos las caracteristicas de estos electores, sobre todo en relacion a los votantes no socialistas y, en menor medida, frente a los socialistas convencidos. el perfil del grupo es el de personas de izquierda, que valoran muy positivamente la figura de felipe gonzalez (especialmente tras la celebracion de los debates televisivos entre los dos principales candidatos, cuya pareja o persona con la que mas trato tienen son votantes del psoe pero que, sin embargo, estan descontentas con la gestion del gobierno socialista.

Análisis de los elementos teóricos y prácticos más relevantes en el ámbito de la intervención con alumnado TEA

OpenAIRE

Jiménez Samper, Beatriz

2017-01-01

El presente proyecto trata de analizar los componentes teóricos y prácticos más relevantes en el ámbito de la intervención, tanto dentro de la escuela como fuera de ella, del alumnado con Trastorno del Espectro Autista. Es importante abordar esta problemática desde diferentes terapias, partiendo de la base de que cada niño o niña tiene unas características personales individuales que hacen que le funcione mejor un tipo de tratamiento u otro. Es decir, que, aunque estas personas compartan unas...

States' Participation Guidelines for Alternate Assessments Based on Modified Academic Achievement Standards (AA-MAS) in 2008. Synthesis Report 71

Science.gov (United States)

Lazarus, Sheryl S.; Rogers, Christopher; Cormier, Damien; Thurlow, Martha L.

2008-01-01

Federal regulations (U.S. Department of Education, 2007a) provide states with the flexibility to offer an alternate assessment based on modified academic achievement standards (AA-MAS). This assessment option is for a small group of students with disabilities who can make significant progress, but may not reach grade-level achievement within the…

Surface Characterization of Some Novel Bonded Phase Packing Materials for HPLC Columns Using MAS-NMR Spectroscopy

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Jude Abia

2015-03-01

Full Text Available Information on the surface properties of three novel chemically bonded phase packing materials for High performance liquid chromatography (HPLC were obtained using spectra obtained by solid state cross-polarization (CP magic-angle spinning (MAS nuclear magnetic resonance (NMR spectroscopic experiments for the 29Si, and 13C nuclei. These packing materials were: Cogent bidentate C18 bonded to type-C silica, hybrid packing materials XTerra MS C18, and XBridge Prep. C18. The spectra obtained using cross-polarization magic angle spinning (CP-MAS on the Cogent bidentate C18 bonded to type-C silica show the surface to be densely populated with hydride groups (Si-H, with a relative surface coverage exceeding 80%. The hybrid packing materials XTerra and XBridge gave spectra that reveal the silicon atoms to be bonded to organic moieties embedded in the molecular structure of these materials with over 90% of the alkyl silicon atoms found within the completely condensed silicon environments. The hydrolytic stability of these materials were investigated in acidic aqueous solutions at pHs of 7.0 and 3.0, and it was found that while the samples of XTerra and XBridge were not affected by hydrolysis at this pH range, the sample of Cogent lost a significant proportion of its Si-H groups after five days of treatment in acidic aqueous solution.

Premises and Limitations in Defining and Measuring Synergy from M&As

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Aevoae George Marian

2017-01-01

Full Text Available Mergers and acquisitions are performed worldwide mainly because of synergy. Although many invoke the term synergy as the key motivation of why they engage in M&As, research has led us to understand that it is not very clear in terms of what it actually is. In the scientific literature, synergy is mostly defined as being “2+2=5”. Thus, we first thought that it can only be a positive effect. But, latter on, we found out that synergy is not only positive, it can be negative as well, known as negative synergy or dyssynergy. The purpose of this paper is to shed some light on what is synergy, how can we quantify and classify it and why acquiring firms tend to pay more for the target firm. We believe that there is a link between the amount of premium paid for a target firm and the expectations for synergy.

Reply to Mas et al.: Comment on Gebhardt et al. MAD-MEX: Automatic Wall-to-Wall Land Cover Monitoring for the Mexican REDD-MRV Program Using All Landsat Data. Remote Sens. 2014, 6, 3923–3943

Directory of Open Access Journals (Sweden)

Michael Schmidt

2016-06-01

Full Text Available Mas, J.F. et al. have submitted a paper [1] for publication, which aims to respond to a paper published by Gebhardt et al. [2]. Mas, J.F. et al. had received a consultancy in 2013 to assess the quality of the early prototype products partly described in Gebhardt et al. in 2014. This consultancy, although a formal non-disclosure agreement had not been demanded, was awarded under the mutual understanding that the data handed over to Mas et al. constitute the early development phase of the program. Therefore, Mas et al. had been asked to give an assessment on the quality of the prototypes to obtain a proof of concept for the proposed workflow of MAD-Mex. It was clear that this assessment would suffer from limited availability of high quality training and validation data available in 2013. Mas et al. finally did not execute the consultancy due to the limited vector processing capacities in their lab. In October 2014, we sent the latest products, version 4.2 of the MAD-Mex products, including the more than 200,000 validation points gathered from independent expert interpreters of all Mexican ecosystems. Mas et al. did not respond to this transfer or to our request to collaborate in the quality control and assessment of MAD-Mex.

Evidence for radiation induced crosslinking in polytetrafluoroethylene by means of high-resolution solid-state 19F high-speed MAS NMR

International Nuclear Information System (INIS)

Katoh, Etsuko; Sugisawa, Hisashi; Oshima, Akihiro; Tabata, Yoneho; Seguchi, Tadao; Yamazaki, Toshimasa

1999-01-01

Radiation effects on molecular structure of polytetrafluoroethylene (PTFE) were studied by high-resolution solid-state 19 F high speed magic angle spinning (HS MAS) NMR spectroscopy. Samples used for the NMR studies were prepared by electron beam irradiation of PTFE with a wide range of irradiation doses from 0.5-10 MGy in the molten state at 340 deg. C under oxygen-free atmosphere. While the non-irradiated PTFE displayed only an intense peak of the internal CF 2 , several new signals corresponding to CF 3 , CF 2 and CF groups were observed for the PTFE which was high temperature irradiated at 340 deg. C in oxygen-free atmosphere (hti-PTFE). Intensities of these new signals increased with an increase of irradiation dose. The present solid-state 19 F HS MAS NMR studies provide not only the first experimental evidence regarding the existence of crosslinking structure in hti-PTFE, directly detected as the CF signal, but also the crosslinking density which can be estimated from a proportion of the CF versus total fluorine signal intensities. The higher the irradiation dose, the higher the crosslinking density; hti-PTFE with 10 MGy contains one crosslinking site per approximately 24 CF 2 groups, while the hti-PTFE with 5 MGy contains one crosslinking site per approximately 36 CF 2 groups. Further, G value of crosslinking (G(x)) was estimated from the signal intensities of 19 F HS MAS NMR spectra. The highest G(x)-value, 1.85, was observed for the 2MGy hti-PTFE sample, suggesting that crosslinking of PTFE is formed most efficaciously with 2 MGy irradiation in the molten state at 340 deg. C under oxygen-free atmosphere

Autodescrição de adolescentes segundo o gênero e a ordem de nascimento

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Izabela Tissot Antunes Sampaio

Full Text Available Este artigo tem como objetivo divulgar resultados e suscitar o interesse de pesquisadores sobre a influência do gênero e de ordem de nascimento na autodescrição dos indivíduos. Especificamente, 322 adolescentes entre 13 e 17 anos responderam a um questionário em que se pedia que mencionassem três palavras positivas e três negativas para descreverem si mesmos. Não se tratou de avaliar a personalidade em si, mas de apreender padrões de características comuns dos participantes. A partir da análise fatorial de correspondências (AFC, surgiram fatores que opuseram os grupos dois a dois. O gênero foi o principal fator diferenciador das características citadas, mas os efeitos de ordem de nascimento também se mostraram relevantes na observação dos padrões comportamentais dos respondentes. Sugere-se que a personalidade seja pesquisada no Brasil considerando essas duas variáveis em conjunto.

Estratégia digital de marketing de conteúdos : estudo de caso "Nestlé Cozinhar"

OpenAIRE

Monteiro, Marta Ventura Lourenço Morais

2016-01-01

O marketing de conteúdos não é algo novo mas tem vindo, nos últimos anos, a ganhar especial relevância por parte de muitas empresas que pretendem criar e distribuir conteúdo valioso e relevante para um público-alvo específico. Num mundo tão competitivo, os consumidores estão cada vez menos recetivos a mensagens publicitárias invasivas e sem qualquer tipo de propósito para as suas vidas. Como tal, o marketing de conteúdos vem ajudar muitas marcas a estabelecer ou reforçar ligaçõ...

Mestre do Meu Destino: Um Filósofo Estoico numa Prisão em Hanói

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James Bond Stockdale

2017-03-01

Full Text Available Quando eu debati com Al Gore e Dan Quayle, na televisão, em Outubro de 1992, como candidatos para vice-presidente, iniciei minhas notas com duas questões que são perenemente debatidas por todo ser humano ao pensar: Quem sou eu? Por que estou aqui? As questões foram relevantes em termos acerca do propósito da noite, que foi me introduzir e deixar o povo americano saber de onde eu tinha vindo. Mas eu também as escolhi por sua ampla relevância em minha vida: Eu sou um filósofo.

Blocos para execução de alvenaria de vedação empregando garrafas pet: avaliação mecânica e termoacústica

OpenAIRE

Viegas, Leila Soares

2012-01-01

A reciclagem e o reaproveitamento de materiais são vistos como as soluções mais evidentes em relação ao desenvolvimento sustentável. Um dos aspectos relevantes para este desenvolvimento refere-se à inserção da engenharia para conceber meios que propiciem a reutilização de materiais considerados como lixo, mas com grande potencial de aplicabilidade na própria indústria da construção civil, através da geração de produtos e tecnologias apropriadas que podem ser uma alternativa par...

Papel, importância e aplicação das estratégias competitivas genéricas: estudo de caso na indústria de açúcar

OpenAIRE

Marco Antônio Silva de Castro

2007-01-01

A proposta do presente estudo é de contribuir para o conhecimento das estratégias competitivas genéricas. Para isto, tem como objetivo analisar a natureza das estratégias competitivas genéricas em suas principais dimensões relevantes a fim de compreender melhor seu papel, sua importância e sua aplicação no processo estratégico das empresas. Estratégias genéricas já eram conhecidas desde a década de 1960, mas a partir do livro de Michael E. Porter de 1980, Estratégia Competitiva, o tema ganhou...

Características relevantes de la simulación energética de viviendas unifamiliares

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García-Alvarado, R.

2014-03-01

Full Text Available Energy simulation systems allow analyzing the environmental quality and demand of buildings, but they must have reliable and proper procedures. This paper identifies relevant conditions of energy simulation systems for the study of single-family homes, based on the analysis of a dozen programs and various experiences in south central Chile. A review of capabilities was conducted, simulating the same case in all systems and making interviews with expert users. Besides it studied the incidence of background data and different strategies for analysis the environmental performance of housing. Revealing significant characteristics in the energy study of detached residential buildings. Finally it suggests reviewing certain conditions to ensure the effectiveness of the environmental analysis and subsequent actions.Los sistemas de simulación energética de edificios permiten analizar la calidad y demanda ambiental de las construcciones, pero deben contar con procedimientos fiables y pertinentes. Este artículo identifica condiciones relevantes de la simulación energética de viviendas unifamiliares, basado en el análisis de una docena de programas y distintas experiencias en el centro sur de Chile. Desarrollando una revisión de capacidades de los sistemas, a través de la simulación de una misma vivienda y entrevistas a usuarios expertos. Además de estudiar incidencias de los antecedentes y distintas estrategias de análisis para el mejoramiento ambiental de viviendas. Revelando características significativas para el estudio energético de construcciones habitacionales aisladas. Finalmente sugiere revisar ciertas condiciones de los sistemas para asegurar la efectividad de los análisis ambientales y de las acciones subsecuentes.

Local environments and lithium adsorption on the iron oxyhydroxides lepidocrocite (gamma-FeOOH) and goethite (alpha-FeOOH): A ²H-2 and ⁷Li solid-state MAS NMR study

DEFF Research Database (Denmark)

Nielsen, Ulla Gro; Grey, Clare P.; Paik, Jonkim

2008-01-01

2H and 7LiMAS NMR spectroscopy techniques were applied to study the local surface and bulk environments of iron oxyhydroxide lepiclocrocite (gamma-FeOOH). 2H variable-temperature (VT) MAS NMR experiments were performed, showing the presence of short-range, strong antiferromagnetic correlations......, even at temperatures above the Neel temperature, TN, 77 K. The formation of a Li+ inner-sphere complex on the surface of lepiclocrocite was confirmed by the observation of a signal with a large 7Li hyperfine shift in the 7Li  MAS NMR spectrum. The effect of pH and relative humidity (RH...

Marrero Regalado y Aguiar: El arte masónico oficial de la Postguerra en Canarias

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David Martín López

2008-12-01

Full Text Available La masonería, como institución filantrópica y bien asentada durante la II República en España, fue totalmente rechazada por Franco desde su Alzamiento de 1936. Sin embargo, la protección oficial de la masonería en Canarias hizo que artistas masones como José Aguiar o como el arquitecto Marrero Regalado pudieran materializar su estética en numerosos proyectos para un nuevo Estado, en el que la concepción masónica del Ser Humano aparece como lenguaje encubierto y subversivo.

Caracteristicas clínicas, resistência e fatores de virulência em Staphylococcus aureus

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Aline Peçanha Muzy Dias

2015-11-01

Full Text Available S. aureus está presente em cerca de 30% dos humanos de maneira assintomática e os sítios de maior prevalência são as fossas nasais, axilas e períneo.Este microrganismo pode causar diversos processos patológicos desde os mais simples como furúnculo e acne até mais os mais complexos como pneumonias, meningite, síndrome de choque tóxico, endocardites, infecções no trato urinário, infecções associadas com dispositivos intravasculares e corpos estranhos e sepse. Diversos estudos têm sido realizados a fim de aprimorar o entendimento dos mecanismos de transmissão e controle da disseminação deste patógeno, descrevendo as cepas encontradas em diferentes ambientes. Dentre os diversos fatores de virulência responsáveis pelas infecções, destacam-se a α-hemolisina, β-toxina, PSM-α, proteína A e a leucocidina Panton-Valentine, demonstrando um importante papel na patogênese por S. aureus. O uso racional de antimicrobianos para MRSA deve ser feito sabendo-se a terapia correta para o tratamento desta infecção de grande importância na comunidade científica. Uma rápida avaliação da etiologia da infecção é também relevante para a aplicação do tratamento adequado, pois nos casos de MRSA é fundamental no tratamento empírico, não começar somente com antibióticos betalactâmicos. Cada vez mais, os governos de todo o mundo estão começando a prestar atenção a um problema tão grave que ameaça as conquistas da medicina moderna. A era pós-antibiótico, em que infecções comuns e lesões menores podem matar, longe de ser uma fantasia, pode se tornar uma possibilidade muito real para o século 21.

"KinLeaves" reklāmas aktivitātes sociālajā tīklā “Facebook” 2016. gadā

OpenAIRE

Mandrika, Dana

2017-01-01

Bakalaura darba mērķis ir izpētīt, kādas reklāmas aktivitātes uzņēmums ir veicis un noskaidrot, vai sociālajā tīklā “Facebook” ar reklāmas aktivitātēm ir iespējams sasniegt mērķauditoriju. Darbs sastāv no trīs daļām – teorētiskās, metodoloģiskās un empīriskās. Teorētisko daļu veido nodaļas par reklāmu, sociālo tīklu vietnēm, sociālo tīklu „Facebook” un reklāmu sociālo tīklu vietnēs. Metodoloģiskajā daļā apskatītas pētījumā izmantotās metodes - kontentanalīze, intervija, anketēšana. Empīrisk...

Lima masónica: las logias simbólicas y su progreso en el medio urbano a fines del siglo XIX

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Chocano, Magdalena

2010-08-01

Full Text Available This article deals with the organization of the Grand Lodge of Peru, founded in 1882. Using Masonic publications and sources, it aims to establish the dynamics of its local lodges and to assess the character of Masonic activity in Peru at the end of the 19^th century. Finally, it examines the political positioning of the Masonic leadership and its performance in the national political scene where it challenged Catholic exclusivity.

Este artículo presenta un análisis de la organización de la Gran Logia del Perú, fundada en 1882. A partir de las fuentes masónicas, se busca establecer la dinámica de cada logia y el carácter del accionar masónico. Finalmente, se examinan las actitudes políticas que fomentaron sus dirigentes y su actuación en la escena nacional donde desafiaron al exclusivismo católico.

Remote Sensing of Radiative and Microphysical Properties of Clouds During TC (sup 4): Results from MAS, MASTER, MODIS, and MISR

Science.gov (United States)

King, Michael D.; Platnick, Steven; Wind, Galina; Arnold, G. Thomas; Dominguez, Roseanne T.

2010-01-01

The Moderate Resolution Imaging Spectroradiometer (MODIS) Airborne Simulator (MAS) and MODIS/Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Airborne Simulator (MASTER) were used to obtain measurements of the bidirectional reflectance and brightness temperature of clouds at 50 discrete wavelengths between 0.47 and 14.2 microns (12.9 microns for MASTER). These observations were obtained from the NASA ER-2 aircraft as part of the Tropical Composition, Cloud and Climate Coupling (TC4) experiment conducted over Central America and surrounding Pacific and Atlantic Oceans between 17 July and 8 August 2007. Multispectral images in eleven distinct bands were used to derive a confidence in clear sky (or alternatively the probability Of cloud) over land and ocean ecosystems. Based on the results of individual tests run as part of the cloud mask, an algorithm was developed to estimate the phase of the clouds (liquid water, ice, or undetermined phase). The cloud optical thickness and effective radius were derived for both liquid water and ice clouds that were detected during each flight, using a nearly identical algorithm to that implemented operationally to process MODIS Cloud data from the Aqua and Terra satellites (Collection 5). This analysis shows that the cloud mask developed for operational use on MODIS, and tested using MAS and MASTER data in TC(sup 4), is quite capable of distinguishing both liquid water and ice clouds during daytime conditions over both land and ocean. The cloud optical thickness and effective radius retrievals use five distinct bands of the MAS (or MASTER), and these results were compared with nearly simultaneous retrievals of marine liquid water clouds from MODIS on the Terra spacecraft. Finally, this MODIS-based algorithm was adapted to Multiangle Imaging SpectroRadiometer (MISR) data to infer the cloud optical thickness Of liquid water clouds from MISR. Results of this analysis are compared and contrasted.

QuBiLS-MAS, open source multi-platform software for atom- and bond-based topological (2D) and chiral (2.5D) algebraic molecular descriptors computations.

Science.gov (United States)

Valdés-Martiní, José R; Marrero-Ponce, Yovani; García-Jacas, César R; Martinez-Mayorga, Karina; Barigye, Stephen J; Vaz d'Almeida, Yasser Silveira; Pham-The, Hai; Pérez-Giménez, Facundo; Morell, Carlos A

2017-06-07

In previous reports, Marrero-Ponce et al. proposed algebraic formalisms for characterizing topological (2D) and chiral (2.5D) molecular features through atom- and bond-based ToMoCoMD-CARDD (acronym for Topological Molecular Computational Design-Computer Aided Rational Drug Design) molecular descriptors. These MDs codify molecular information based on the bilinear, quadratic and linear algebraic forms and the graph-theoretical electronic-density and edge-adjacency matrices in order to consider atom- and bond-based relations, respectively. These MDs have been successfully applied in the screening of chemical compounds of different therapeutic applications ranging from antimalarials, antibacterials, tyrosinase inhibitors and so on. To compute these MDs, a computational program with the same name was initially developed. However, this in house software barely offered the functionalities required in contemporary molecular modeling tasks, in addition to the inherent limitations that made its usability impractical. Therefore, the present manuscript introduces the QuBiLS-MAS (acronym for Quadratic, Bilinear and N-Linear mapS based on graph-theoretic electronic-density Matrices and Atomic weightingS) software designed to compute topological (0-2.5D) molecular descriptors based on bilinear, quadratic and linear algebraic forms for atom- and bond-based relations. The QuBiLS-MAS module was designed as standalone software, in which extensions and generalizations of the former ToMoCoMD-CARDD 2D-algebraic indices are implemented, considering the following aspects: (a) two new matrix normalization approaches based on double-stochastic and mutual probability formalisms; (b) topological constraints (cut-offs) to take into account particular inter-atomic relations; (c) six additional atomic properties to be used as weighting schemes in the calculation of the molecular vectors; (d) four new local-fragments to consider molecular regions of interest; (e) number of lone-pair electrons in

UJI APLIKASI VAKSIN HYDROVAC UNTUK PENCEGAHAN PENYAKIT MERAH PADA IKAN MAS (Cyprinus carpio DAN GURAME (Osphronemus gouramy DI BALAI BENIH IKAN PANDAK KABUPATEN BANYUMAS

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Indrawati Indrawati

2009-06-01

Full Text Available Uji aplikasi vaksin ini bertujuan untuk mengetahui pengaruh pemberian vaksin hydrovac terhadap perkembangan kesehatan ikan mas dan gurami, serta mendapatkan informasi tentang cara pengendalian, melalui tindakan pencegahan ikan air tawar yang terserang wabah penyakit Aeromonas hydrophila. Sebanyak 39 ekor ikan mas (Cyprinus carpio dengan bobot rata-rata 1 kg dan panjang rata-rata 30 cm dan108 ekor ikan gurami (Osphronemus gouramy L. dengan bobot rata-rata 250 g dan panjang rata-rata 10 cm yang berasal dari Balai Benih Ikan (BBI Pandak Kabupaten Banyumas, digunakan sebagai ikan uji. Vaksin yang digunakan adalah “vaksin hydrovac” yang diproduksi oleh Laboratorium Patologi Ikan. Balai Riset Perikanan Budidaya Air Tawar, Bogor. Vaksin diaplikasikan dengan cara dicampur pelet dengan dosis 2--3 mL per kilogram bobot badan ikan yang diberikan selama 5--7 hari berturut-turut dan setelah satu bulan kemudian dilakukan vaksinasi ulangan (booster terhadap ikan yang telah divaksin dengan cara yang sama. Hasil uji menunjukkan bahwa ikan baik ikan mas maupun gurame yang divaksin menunjukkan angka sintasan yang cukup tinggi apabila dibandingkan dengan ikan yang tidak divaksin. Mortalitas ikan uji yang tidak divaksin terjadi mulai minggu ke-5 dan ke-6.

Characterization of coal structure by CP/MAS carbon-13 NMR spectrometry

International Nuclear Information System (INIS)

Yoshida, T.; Maekawa, Y.

1987-01-01

Cross-polarization (CP)/magic angle spinning (MAS) carbon-13 nuclear magnetic resonance (n.m.r.) spectrometry has been applied to the analysis of the whole structures of different ranks of coal. Three basic structural parameters, namely carbon aromaticity fa, new carbon aromaticity fa', and atomic H/C ratio for the hypothetical unsubstituted aromatic nuclei Haru/Car, were derived from the combined data of ultimate analysis, the distributions of carbon and oxygen functional groups obtained from the spectrum and the distribution of four types of methylene carbon groups in coal. Both fa and fa' values generally increased with coal rank and ranged from 0.51 to 0.71 and from 0.62 to 0.76, respectively. Haru/Car value tended to decrease with coal rank although the value was greatly affected by the types of hydroaromatic methylene carbons to aromatic rings. The values indicated that lower-rank coals consisted mainly of 1-3 aromatic rings, and higher-rank coals, 3-5 aromatic rings. 24 refs.; 5 figs.; 4 tabs

One-Pot Synthesis, X-Ray Diffraction and MAS NMR Spectroscopic Study of Gallosilicate Nitrate Cancrinite Na8[GaSiO4]6(NO34(H2O6

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Ashok V. Borhade

2010-01-01

Full Text Available One-pot synthetic gallosilicate nitrate cancrinite (CAN framework topology have been synthesized under hydrothermal conditions at 100 °C. The synthesized product was characterized by, X-ray powder diffraction, IR, Raman and 29Si, 23Na MAS NMR spectroscopy, SEM and thermogravimetry. The crystal structure refinement of pure nitrate cancrinite has been carried out from X-ray data using Rietveld refinement method. Gallosilicate cancrinite Na8[GaSiO4]6(NO34(H2O6 crystalline hexagonal with space group P63 and a = 12.77981 Å (2, c = 5.20217 Å (1, (Rwp = 0.0696 Rp = 0.0527. The results by MAS NMR spectroscopy confirmed the alternating Si, Ga ordering of the gallosilicate framework for a Si/Ga ratio of 1.0. A distribution of the quadrupolar interaction of the sodium cations caused by the enclatherated water molecules and motional effects can be suggested from the 23Na MAS NMR. Thermogravimetric investigation shows the extent of nitrate entrapment, stability within the cancrinite cage and decomposition properties. SEM clearly shows the hexagonal needle shaped crystals of nitrate cancrinite.

ASPECTOS RELEVANTES PARA EL DISEÑO DE PLANES DE SALUD SOSTENIBLES ORIENTADOS A LOS GRUPOS DE INTERÉS. UNA PROPUESTA BASADA EN LA GUÍA ISO 26000:2010

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Miguel Angel Moyano Santiago

2017-01-01

Full Text Available Los planes de salud de las comunidades autónomas pueden incorporar criterios de desarrollo sostenible en su elaboración. No se han realizado análisis al respecto o propuestas de elaboración e indicadores. El objetivo fue la elaboración de un panel de indicadores de seguimiento orientados al desarrollo sostenible que contribuyan a gestionar los impactos económicos, sociales y medioambientales de los sistemas sanitarios. Método: Se utilizó una variación del método RAND/UCLA o técnica de Delphi modificada. El proceso consistió en un análisis bibliográfico y de contexto de las materias y asuntos relacionados con sanidad y responsabilidad social tomando como base ISO 26000:2010. Se realizó una encuesta mediante muestreo intencional a una selección de 70 miembros expertos de los grupos de interés identificados y un grupo de discusión para determinar el consenso sobre los asuntos tratados en la encuesta. La investigación fue realizada en 2015. Resultados: De la revisión bibliográfica se obtuvieron 33 asuntos relacionados con sanidad incluidos en ISO 26000:2010. De la encuesta, 7 resultaron relevantes con alto consenso, 8 de relevancia y consenso medio y 18 con menor relevancia y alto nivel de disenso. El grupo de expertos excluyó 4 de los 18 asuntos con menor consenso. Conclusiones: 29 de los 33 asuntos incluidos en el trabajo, repartidos en las 7 materias fundamentales contenidas en la guía ISO 26000 de responsabilidad social, resultaron relevantes para los grupos de interés en relación con su posible inclusión en los planes de salud. Se elaboró un panel de indicadores.

Pengaruh Harga, Kualitas Produk, Dan Citra Merek Terhadap Keputusan Pembelian Kecap Manis Merek Bango (Studi Kasus Pada Ibu Rumah Tangga Di Komplek Villa Mutiara Johor Ii Dan Taman Johor Mas)

OpenAIRE

Nurlisa

2013-01-01

This research aims to determine the effects of pricing, product quality and brand image have a significant and positive impact on purchasing decision Bango soy sauce brands on housewife in Komplek Villa Mutiara Johor II and Taman Johor Mas. The population in this research was all the housewife in the Komplek Villa Mutiara Johor II and Taman Johor Mas. Data analyzing method is by using descriptive analyzing method and multiple linear regression. Kind of this research is causal comparative. Thi...

High field 27Al MAS NMR and TPD studies of active sites in ethanol dehydration using thermally treated transitional aluminas as catalysts

Energy Technology Data Exchange (ETDEWEB)

Hu, Jian Zhi; Xu, Suochang; Kwak, Ja Hun; Hu, Mary Y.; Wan, Chuan; Zhao, Zhenchao; Szanyi, Janos; Bao, Xinhe; Han, Xiuwen; Wang, Yong; Peden, Charles H. F.

2016-04-01

High field quantitative 27Al MAS NMR and temperature programmed desorption (TPD) of ethanol are used to study the surface and phase transformation of gamma-Al2O3 during calcination in the temperature range of 500 to 1300 degrees C. Following ethanol adsorption, ethylene is generated during TPD with a desorption temperature > 200 degrees C. With increasing calcination temperature prior to TPD, the amount of ethylene produced decreases monotonically. Significantly, 27Al MAS NMR reveals that the amount of penta-coordinate Al3+ ions (Lewis acid sites) also decreases with increasing calcination temperature. In fact, a strong correlation between the amount of penta-coordinate Al3+ ions and the amount of strongly adsorbed ethanol molecules (i.e., the ones that convert to ethylene during TPD) is obtained. This result indicates that the penta-coordinate aluminum sites are the catalytic active sites on alumina surfaces during ethanol dehydration reaction across the entire course of gamma- to alpha-Al2O3 phase transformations.

Personāla atlases un apmācības sistēmas pilnveidošana uzņēmumā "X"

OpenAIRE

Strode, Gunta

2012-01-01

Bakalaura darbā „Personāla atlases un apmācības sistēmas pilnveidošana uzņēmumā „X” ” tiek izskatīti un analizēti jautājumi par personāla atlases un apmācības procesu. Darbs sastāv no trim daļām. Pirmajā daļā tiek raksturoti personāla atlases mērķi un atlases organizēšanas kārtība. Otrajā daļā tiek raksturota personāla apmācības nozīme un organizēšanas nosacījumi. Trešajā daļā tiek pētīta personāla atlases un apmācības sistēmas pilnveidošana uzņēmumā „X”. Pamatojoties uz veiktajiem ...

Preču uzskaites sistēmas izstrāde Django ietvarā

OpenAIRE

Kokorevičs, Miķelis

2014-01-01

Django ietvars ir moderns un pilnvērtīgs tīmekļa ietvars, kas ir veidots Python programmēšanas valodā. Šajā darbā, tiek pētīta Django ietvara funkcionalitāte un piemērotība individuālu preču uzskaites sistēmu izstrādē. Galvenie darba uzdevumi ir izpētīt Django ietvara iespējas un apkopot preču uzskaites sistēmas izstrādei nozīmīgākās priekšrocības. Šī darba rezultātā, tika aprakstīta Django ietvara funkcionalitāte, iespējas un uzbūve. Tika veikts salīdzinājums starp populārākajiem Pyth...

Nevalstiskās organizācijas "Centra Dardedze" sociālo reklāmas kampaņu video materiālu vēstījuma un auditorijas uzmanības piesaistošo elementu analīze

OpenAIRE

Kolbina, Inese

2016-01-01

Bakalaura darbā „Nevalstiskās organizācijas "Centra Dardedze" sociālo reklāmas kampaņu video materiālu vēstījuma un auditorijas uzmanības piesaistošo elementu analīze” tika analizētas nevalstiskās organizācijas "Centrs Dardedze" seši sociālo reklāmu video materiāli. Analīze balstās uz reklāmas vizuālo vēstījumu un auditorijas uztveres izpēti. Bakalaura darba mērķis ir izpētīt "Centrs Dardedze" reklāmas kampaņas, noskaidrot kā un ar kādiem paņēmieniem konkrētās sociālās reklāmas cenšas mainīt...

ESTUDO DE PARÂMETROS RELEVANTES NA OBTENÇÃO DE TERMOGRAMAS PARA DIAGNÓSTICO DE PROBLEMAS PATOLÓGICOS

Directory of Open Access Journals (Sweden)

Camila Akemi Sakamoto

2017-04-01

Full Text Available RESUMO: Esse trabalho trata do estudo de sensibilidade de um equipamento de termografia, em que foram avaliados os seguintes parâmetros relevantes na obtenção de termogramas: (1 influência das reflexões (superfície refletante e obstáculos, (2 influência do gradiente de temperatura, (3 influência da cor (temperatura ambiente e radiação solar e (4 influência da distância da câmera infravermelha ao objeto. Dessa maneira, de caráter experimental, foi realizada em ambiente de laboratório uma análise e interpretação da avaliação dos parâmetros relevantes na obtenção de termogramas, sendo que foi possível avaliar as potencialidades da termografia infravermelha conseguindo com os diferentes ensaios a determinação da temperatura superficial dos materiais e componentes, bem como pode ser verificado a importância do conhecimento da sensibilidade das técnicas de ensaio utilizadas em medições para a avaliação do desempenho físico de corpos de prova. Por meio dos parâmetros estudados foi possível concluir que há muitas influências, como por exemplo, a refletividade e a atenuação atmosférica, que podem produzir uma análise incorreta ou até mesmo incapacitar a visualização de algum problema patológico presente. É preciso então, além de conhecimento do assunto, ter atenção a todos os fatores externos de forma a serem detectados e eliminados, ou ainda levados em consideração na hora da execução da técnica da termografia infravermelha para que sejam minimizados. ABSTRACT: This paper presents a sensitivity study of a thermography equipment, in which evaluated the following parameters relevant to the achievement of thermographs: (1 influence of reflections (refletante surface and obstacles, (2 influence of temperature gradient, (3 influence of color (ambient temperature and solar radiation and (4 influence of distance from infrared camera to the object. In this way, a laboratory analysis and interpretation of

Efektifitas Nannochloropsis sp. terhadap sistem imun non-spesifik ikan mas Cyprinus carpio yang diinfeksi Virus Herpes

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Arafik Lamadi

2017-11-01

Full Text Available The aim of this research was to determine the effect of Nannochlorpsisis sp. against the common carp (Cyprinus carpio leukocyte profile, infected with Koi Hepesvirus (KHV. The  descriptive observational method wa used in this study. This research was conducted for 4 weeks, using common carp length 12±0,3 cm as many as 7 fish. The tested experiment was P1: without infested by Nannochlorpsisis sp. and KH; P2: Infested by  Nannochlorpsisis sp. and without KHV infected; P3: Infected by Nannochloropsis sp. and KHV; P4;  Not infected by Nannochlorpsisis sp. and  infected by KHV. Evey tratment in three replications. The results showed that the highest total leukocyte was obtained in P3 (37.600 cells/ml, followed by  P4 (29.650 cells / ml, P2 (28,500 cells / ml and P1 (21,150 cells / ml. Leukocyte differentiation test on P1 (neutrophil 6.2%, lymphocyte 68.0%, monocyte 17.0%, P2 (neutrophil 6.6%, lymphocyte 72.3%, monocyte 18.3%, P3 (neutrophil 7.9%, lymphocyte 66.1%, monocytes 24.3%, P4 (neutrophils 11.2%, lymphocytes 57.6%, monocytes 37.6%. The higher survivla rate was recorded in P2 (100%. It is concluded that  Nannochloropsis sp. can enhance the common carp immune sytem. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian Nannochlorpsis sp. terhadap profil leukosit ikan mas (Cyprinus carpio yang terinfeksi Koi Herves Virus (KHV. Penelitian ini menggunakan metode deskriptif observasional dengan membandingkan hasil pada perlakuan 1 P1: (tanpa pemberian Nannochlorpsis sp. dan tidak diinfeksi KHV, 2 P2 (diberikan Nannochlorpsis sp dan tanpa diinfeksi KHV, 3 P3 (diberikan Nannochlorpsisis sp dan diinfeksi KHV, 4 P4 (tanpa pemberian Nannochlorpsis sp. dan diinfeksi KHV, masing-masing perlakukan 3 kali ulangan. Penelitian ini dilakukan selama 4 minggu dengan menggunakan Ikan mas berukuran 12±0,3  cm sebanyak 120 ekor. Hasil perhitungan total leukosit tertinggi diperoleh pada P3 (37.600 sel/ml, selanjutnya berturut-turut  P4 (29.650  sel

High field 27Al MAS NMR and TPD studies of active sites in ethanol dehydration using thermally treated transitional aluminas as catalysts

Energy Technology Data Exchange (ETDEWEB)

Hu, Jian Zhi; Xu, Suochang; Kwak, Ja Hun; Hu, Mary Y.; Wan, Chuan; Zhao, Zhenchao; Szanyi, Janos; Bao, Xinhe; Han, Xiuwen; Wang, Yong; Peden, Charles H. F.

2016-04-01

Gamma-, sigma- and theta-Al2O3 are well known metastable “transitional” alumina structural polymorphs. Upon heating, Al2O3 transitions to the so-called and Al2O3 polymorphs and finally forms the thermally stable Al2O3. The poorly developed crystallinity and co-existence of the , , and Al2O3 prior to forming all Al2O3, making it difficult to characterize the structures as well as to quantify the various phases of the transition alumina. As a result, there are significant controversies in the literatures. In this work, a detailed NMR analysis was carried out at high magnetic field on three special aluminum oxide samples where the, , , Al2O3 phases are made dominant, respectively, by controlling the synthesis conditions. The goal is to simplify, including making unambiguous, spectral assignments in 27Al MAS NMR spectra of transition alumina that have not yet been commonly agreed previously. Specifically, quantitative 1D 27Al MAS NMR was used to quantify the ratios of the different alumina structural units, 2D MQMAS 27Al MAS was used for obtaining the highest spectral resolution to guide the analysis of the 1D spectrum, and a saturation pulse sequence was integrated into the 1D NMR to select the amorphous structures, including obtain spectra where the penta-coordinate sites are observed with enhanced relative intensity. Collectively, this study uniquely assigns Al-peaks (both octahedral and tetrahedral) to the Al2O3 and the Al2O3 phases and offers a new way of understanding, including quantifying, the different structural units and sites in transition alumina samples.

Productivity differences and food security: a metafrontier analysis of rain-fed maize farmers in MasAgro in Mexico

Directory of Open Access Journals (Sweden)

M. Laura Donnet

2017-04-01

Full Text Available Rain-fed maize production in Mexico includes approximately 6 million hectares which variation in productivity represents huge challenges to meeting the sustainable intensification goals of the Sustainable Modernization of Traditional Agriculture (MasAgro program. We use the information available from farmers participating in this program to investigate the differences in productivity and the effects of the promoted practices and technologies in seven defined rain-fed maize regions. We do this by applying metafrontier analysis to measure the technical efficiency and the technology gap. The results show a range of technical efficiency from 70 to 100%, which indicates the gains that can be achieved through improved management of the current inputs and practices of farmers in the program, and a range of the environment–technology gap between 32 and 82%, which indicates the limitations of the production environment which would require innovations in technologies and policies particularly adapted for the dry, the tropical and the more traditional regions. Furthermore, the results show that the use of hybrid seed and selling into maize markets have the largest impact in increasing maize yields in all regions. The difference between the MasAgro farmers and the average farmers in each region suggest that scaling the project will contribute to increasing maize production and Mexico’s food self-sufficiency.

Os desastres podem até cair dos céus... Mas a culpa não é de Deus

Directory of Open Access Journals (Sweden)

Josué Petrônio Quirino de Oliveira

2014-12-01

Full Text Available O propósito desta pesquisa é apresentar uma reflexão sobre o descaso em que a politica de enfrentamento aos desastres naturais vem sendo abordada no Brasil nos últimos 100 anos.  Com uma população cada vez mais urbana as cidades passam a ser o centro não só do poder econômico e político, mas também dos mais diversos eventos decorrentes das mudanças climáticas. Uma série de problemas agrava essa urbanização vulnerável e desencadeiam uma crise socioambiental determinada por fatores sociais, políticos, econômicos, tecnológicos, culturais e ecológicos que, de forma integrada, provocam consequências devastadoras. Inundações, deslizamentos, ciclones, incêndios florestais, enxurradas, estiagens, enchentes, secas e terremotos provocam impactos inesperados e pressionam ainda mais este quadro urbano complexo a uma dinâmica preocupante. O desastre não são as principais ameaças, mas a incapacidade de planejamento e enfrentamento na gestão dos desastres demostraram o descaso com a questão foi tratado no país ao longo de décadas.

Smart clothing for sports and rehabilitation

OpenAIRE

Paiva, André Luís Brasil

2015-01-01

Dissertação de mestrado em Design e Marketing O estudo de parâmetros fisiológicos é bastante relevante na avaliação do desempenho de pacientes no processo de reabilitação cardiopulmonar ou neuromuscular. Nota-se que equipamentos para avaliação desses parâmetros têm sido transportados do campo da saúde para o desporto, como meio de conhecer o estado de saúde de atletas e a sua evolução, não apenas no desporto de competição, mas também em desportos de lazer, como a musculação, co...

Probióticos e prebióticos na prevenção e no tratamento de doenças em lactentes e crianças

OpenAIRE

Vandenplas,Yvan; Veereman-Wauters,Genevieve; Greef,Elisabeth De; Peeters,Stefaan; Casteels,Ann; Mahler,Tania; Devreker,Thierry; Hauser,Bruno

2011-01-01

OBJETIVO: Avaliar o impacto do uso de probióticos e prebióticos na saúde das crianças. FONTES DOS DADOS: Foram pesquisados os bancos de dados MEDLINE e LILACS, selecionando-se artigos relevantes em inglês e francês. SÍNTESE DOS DADOS: O leite humano é rico em oligossacarídeos prebióticos e pode conter probióticos. Não existem dados sugerindo que a adição de probióticos a fórmulas para lactentes possa ser prejudicial, mas as evidências de sua eficácia são insuficientes para que seja recomendad...

Tres reformas educativas europeas: Reino Unido, Francia y España: aspectos comparativos.

Directory of Open Access Journals (Sweden)

Inmaculada Egido Gálvez

1997-01-01

Full Text Available Desde una perspectiva unicamente aproximativa, este trabajo lleva a cabo un breve repaso de las reforrnas realizadas en los ultimos afios en el sistema educativo de tres paises europeos: Reino Unido, Francia y Espana. Tras la consideracion de los principales cambios introducidos por las leyes de reforma en relaci6n con la estructura del sistema, el curriculum, el profesorado y el gobiemo y la administraci6n de la educacion, se presenta lavaloraci6n crftica de algunos de los aspectos mas relevantes de las reformas. Por ultimo, se realizan algunas reflexiones globales derivadas de la comparaci6n entre los tres casos tratados

Tourism: Panacea or poision? - Exploring the phenomenon of tourism development in Goa (India)

OpenAIRE

Breda, Zelia

2014-01-01

El fenómeno turístico se ha convertido en uno de los elementos mas relevantes como factor de dinamización y desarrollo en los países emergentes. El presente trabajo se ha centrado en la influencia que ha tenido y tiene en una zona concreta de India, la región de Goa, la interrelación del fenómeno turístico con la cultura y la economía de la zona, analizando los perfiles diferenciales con otras zonas de India y con otras zonas similares en el resto del mundo. Universidad de Málaga. Campus d...

Characteristics and Sampling Efficiencies of Two Impactor Bioaerosol Samplers: MAS-100(Registered) (Microbial Air Monitoring System) and Single-Stage Andersen Viable Microbial Samplers

National Research Council Canada - National Science Library

Hottell, K

2004-01-01

.... A petri dish with agar is used as the impaction surface for these samplers. The MAS-l00 is a single-stage impactor that aspirates air through a 400-hole perforated entry plate onto an agar plate at an airflow rate of 100 L/min...

A MAS NMR and DRIFT study of the Ga species in Ga/H-ZSM5 catalysts and their effect on propane ammoxidation

NARCIS (Netherlands)

Pal, P.; Quartararo, J.; Hamid, abd S.B.; Derouane, E.G.; Védrine, J.C.; Magusin, P.C.M.M.; Anderson, B.G.

2005-01-01

71Ga, 27Al and 29Si MAS-NMR and DRIFT spectroscopies were used to characterize the state of gallium in Ga/H-ZSM5 catalysts tested for their ability to catalyse the ammoxidation of propane. Ga-species were observed in two different possible environments: octahedrally-coordinated gallium in small

Written Exercises: Ancestral Magic and Emergent Intellectuals in Mia Couto, Lhoussain Azergui and Dorota Masłowska

Directory of Open Access Journals (Sweden)

Ewa Łukaszyk

2016-12-01

Full Text Available Written Exercises: Ancestral Magic and Emergent Intellectuals in Mia Couto, Lhoussain Azergui and Dorota Masłowska The article consists in a comparative reading of three novels: Um rio chamado tempo by Mia Couto, Le pain des corbeaux by Lhoussain Azergui and Paw królowej by Dorota Masłowska. In spite of the difference of the historical circumstances of Mozambique, Morocco and Poland, these three books meet at an intersecting point: the emergence of an intelligentsia that uses literacy and writing as an instrument to deconstruct the post-colonial concept of nation and to operate a trans-colonial renegotiation of identity. By the notion of trans-colonial, I understand the opposition against new kinds of symbolic violence that emerged after the end of the colonial period; here this new form of oppression is related to the concept of national unity – an artificial construct that leaves no place for a dualism or pluralism of cultural reality (two shores of the Zambezi river, Arab and Berber dualism in Morocco, “small homelands” in Poland. The young heroes of the novels grasp the pen in order to break through the falseness or the taboos created by the fathers, establishing, at the same time, the relation of solidarity with the world of the grandfathers. The act of writing becomes an actualization of the ancestral universe of magic. The settlement of accounts with the parental generation concerns the vision of nation built upon the resistance against the colonizer (it also refers to the Polish cultural formation, based on the tradition of uprisings and resistance against the Russians.   Ćwiczenia pisemne: magia przodków i nowi intelektualiści w powieściach Mii Couto, Lhoussaina Azerguiego i Doroty Masłowskiej Na podstawie powieści Um rio chamado tempo, uma casa chamada terra Mii Couto (2002, Le pain des corbeaux Lhoussaina Azerguiego (2012 oraz Paw królowej Doroty Masłowskiej (2005 dokonano analizy zjawiska wyłonienia się nowej

Proton chemical shift tensors determined by 3D ultrafast MAS double-quantum NMR spectroscopy

International Nuclear Information System (INIS)

Zhang, Rongchun; Mroue, Kamal H.; Ramamoorthy, Ayyalusamy

2015-01-01

Proton NMR spectroscopy in the solid state has recently attracted much attention owing to the significant enhancement in spectral resolution afforded by the remarkable advances in ultrafast magic angle spinning (MAS) capabilities. In particular, proton chemical shift anisotropy (CSA) has become an important tool for obtaining specific insights into inter/intra-molecular hydrogen bonding. However, even at the highest currently feasible spinning frequencies (110–120 kHz), 1 H MAS NMR spectra of rigid solids still suffer from poor resolution and severe peak overlap caused by the strong 1 H– 1 H homonuclear dipolar couplings and narrow 1 H chemical shift (CS) ranges, which render it difficult to determine the CSA of specific proton sites in the standard CSA/single-quantum (SQ) chemical shift correlation experiment. Herein, we propose a three-dimensional (3D) 1 H double-quantum (DQ) chemical shift/CSA/SQ chemical shift correlation experiment to extract the CS tensors of proton sites whose signals are not well resolved along the single-quantum chemical shift dimension. As extracted from the 3D spectrum, the F1/F3 (DQ/SQ) projection provides valuable information about 1 H– 1 H proximities, which might also reveal the hydrogen-bonding connectivities. In addition, the F2/F3 (CSA/SQ) correlation spectrum, which is similar to the regular 2D CSA/SQ correlation experiment, yields chemical shift anisotropic line shapes at different isotropic chemical shifts. More importantly, since the F2/F1 (CSA/DQ) spectrum correlates the CSA with the DQ signal induced by two neighboring proton sites, the CSA spectrum sliced at a specific DQ chemical shift position contains the CSA information of two neighboring spins indicated by the DQ chemical shift. If these two spins have different CS tensors, both tensors can be extracted by numerical fitting. We believe that this robust and elegant single-channel proton-based 3D experiment provides useful atomistic-level structural and dynamical

1H and 23Na MAS NMR spectroscopy of cationic species in CO2 selective alkaline earth metal porous silicoaluminophosphates prepared via liquid and solid state ion exchange

International Nuclear Information System (INIS)

Arévalo-Hidalgo, Ana G.; Dugar, Sneha; Fu, Riqiang; Hernández-Maldonado, Arturo J.

2012-01-01

The location of extraframework cations in Sr 2+ and Ba 2+ ion-exchanged SAPO-34 was estimated by means of 1 H and 23 Na MAS NMR spectroscopy and spectral deconvolution. Incorporation of the alkaline earth metal cations onto the SAPO framework was achieved via liquid state ion exchange, coupled partial detemplation/solid-state ion exchange, and combination of both techniques. MAS NMR revealed that the level of ion exchange was limited by the presence of protons and sodium cations near hexagonal prisms (site SI), which are relatively difficult to exchange with the alkaline earth metal due to steric and charge repulsion criteria. In addition, the presence of ammonium cations in the supercages facilitated the exchange of otherwise tenacious hydrogen as corroborated by unit cell compositional data as well as enhanced CO 2 adsorption at low partial pressures. The extraframework ammonium species were produced from partial detemplation of the structure-directing agent employed for the SAPO-34 synthesis, tetraethylammonium. - Graphical abstract: MAS NMR was used to elucidate the position the cationic species in alkaline earth metal exchanged silicoaluminophosphates. These species played a significant role during the ion exchange process and, therefore, the materials ultimate CO 2 adsorption performance. Highlights: ► Location of extraframework Sr 2+ or Ba 2+ cations was estimated by means of 1 H and 23 Na MAS NMR. ► Level of Sr 2+ or Ba 2+ ion exchange was limited by the presence of protons and sodium cations. ► Presence of ammonium cations in the supercages facilitated the exchange. ► Sr 2+ and Ba 2+ ion exchanged SAPOs are outstanding CO 2 adsorbents.

Investigación contable, un estudio bibliométrico: identificación de publicaciones relevantes y examen de la estructura intelectual

Directory of Open Access Journals (Sweden)

Florencia Verónica Pedroni

2016-01-01

Full Text Available El presente trabajo examina la investigación contabl e de las dos últimas décadas, definida como estudios publicados en seis revistas académicas de contabilidad entre 1995 y 2014. Específicamente tiene por objetivos identificar los artículos relevantes (trabajos más citados y reconocer los grupos de conocim iento en contabilidad, explorando la estructura intelectual de la disciplina. Como consecuencia del análisis de citación se individualizan las 56 publicaciones más citadas. Por su parte, los resultados del análisis factorial y de co - citación permiten disti nguir cinco agrupaciones del conocimiento contable (earnings management; disclosure; estados financieros y mercado de capitales; gobernanza corporativa y costo de capital. La semejanza de estos hallazgos con los provenientes de estudios bibliométricos sim ilares brinda evidencia de una estructura intelectual relativamente sólida de la disciplina contable. Los resultados aquí presentados son de especial relevancia para académicos del área contable , pues ofrecen una visión aproximada del marco general en el cu al las investigaciones específicas deberán integrarse.

MAS Based Distributed Automatic Generation Control for Cyber-Physical Microgrid System

Institute of Scientific and Technical Information of China (English)

Zhongwen Li; Chuanzhi Zang; Peng Zeng; Haibin Yu; Hepeng Li

2016-01-01

The microgrid is a typical cyber-physical microgrid system(CPMS). The physical unconventional distributed generators(DGs) are intermittent and inverter-interfaced which makes them very different to control. The cyber components,such as the embedded computer and communication network,are equipped with DGs, to process and transmit the necessary information for the controllers. In order to ensure system-wide observability, controllability and stabilization for the microgrid,the cyber and physical component need to be integrated. For the physical component of CPMS, the droop-control method is popular as it can be applied in both modes of operation to improve the grid transient performance. Traditional droop control methods have the drawback of the inherent trade-off between power sharing and voltage and frequency regulation. In this paper, the global information(such as the average voltage and the output active power of the microgrid and so on) are acquired distributedly based on multi-agent system(MAS). Based on the global information from cyber components of CPMS, automatic generation control(AGC) and automatic voltage control(AVC)are proposed to deal with the drawback of traditional droop control. Simulation studies in PSCAD demonstrate the effectiveness of the proposed control methods.

MAS Based Distributed Automatic Generation Control for Cyber-Physical Microgrid System

Institute of Scientific and Technical Information of China (English)

Zhongwen Li; Chuanzhi Zang; Peng Zeng; Haibin Yu; Hepeng Li

2016-01-01

The microgrid is a typical cyber-physical micro grid system (CPMS).The physical unconventional distributed generators (DGs) are intermittent and inverter-interfaced which makes them very different to control.The cyber components,such as the embedded computer and communication network,are equipped with DGs,to process and transmit the necessary information for the controllers.In order to ensure system-wide observability,controllability and stabilization for the microgrid,the cyber and physical component need to be integrated.For the physical component of CPMS,the droop-control method is popular as it can be applied in both modes of operation to improve the grid transient performance.Traditional droop control methods have the drawback of the inherent trade-off between power sharing and voltage and frequency regulation.In this paper,the global information (such as the average voltage and the output active power of the microgrid and so on) are acquired distributedly based on multi-agent system (MAS).Based on the global information from cyber components of CPMS,automatic generation control (AGC) and automatic voltage control (AVC) are proposed to deal with the drawback of traditional droop control.Simulation studies in PSCAD demonstrate the effectiveness of the proposed control methods.

Tendencias clave para el tercer gobierno del MAS, Bolivia 2015-2019

Directory of Open Access Journals (Sweden)

Xavier Albó

2016-03-01

Esta presentación tiene como trasfondo el Plan Nacional de Desarrollo y pretende resaltar algunos de los logros del presidente Evo Morales y los desafíos que enfrenta en su tercer gobierno (2015-2019. Comienza revisando información demográfica básica, según el Censo de 2012, para luego centrarse en la economía: los hidrocarburos, la minería, la producción agropecuaria y la ecología. El boom de la quinua, la expansión de la frontera agrícola y la suspensión de la construcción de una carretera que atraviese el TIPNIS son algunos de los temas que se discuten. Internacionalmente, hay motivos de optimismo con relación a la demanda marítima de Bolivia, mientras que, a nivel nacional, el MAS aseguró una victoria parlamentaria en el año 2014. Las reformas menos exitosas son las del órgano judicial. La presentación termina revisando los movimientos sociales que permitieron la formación la de Asamblea Constituyente y el asunto de la autonomía municipal, departamental e indígena.

Hydration kinetics for the alite, belite, and calcium aluminate phase in Portland cements from 27Al and 29Si MAS NMR spectroscopy

DEFF Research Database (Denmark)

Skibsted, Jørgen; Jensen, Ole Mejlhede; Jakobsen, Hans Jørgen

1997-01-01

29Si magic-angle spinning (MAS) NMR spectroscopy is shown to be a valuable tool for obtaining the quantities of alite and belite in hydrated Portland cements. The hydration (1-180 days) of a white Portland cement with 10 wt.% silica fume added is investigated and the degrees of hydration for alite...

Um estudo exploratório dos fatores relevantes na decisão de compra de produtos orgânicos.

Directory of Open Access Journals (Sweden)

Marta Sambiase Lombardi

2004-06-01

Full Text Available Nos últimos anos, com o consumo crescente de alimentos mais naturais, têm surgido questionamentos sobre a competitividade de produtos orgânicos em relação a outras fontes de alimentos, como os convencionais, transgênicos, ecológicos e outros. Assim, o objetivo deste artigo foi identificar os fatores relevantes na decisão de consumo de alimentos orgânicos. Para tanto foi utilizada uma amostra composta de 138 consumidores do Estado de São Paulo. O tratamento dos dados foi realizado por meio de técnicas da estatística descritiva e multivariada, a análise fatorial. Os resultados evidenciaram cinco principais fatores de competitividade: (a aspectos legais e de certificação; (b ética da empresa; (c preço e comercialização; (d influências políticas; (e questões ambientais. Outro resultado importante foi a identificação da melhora do meio ambiente como o aspecto que mais influencia os consumidores na tomada de decisão de compra de produtos orgânicos. Por fim, este estudo sugere ajustar a demanda de produtos orgânicos, que se mostrou favorável a um consumidor exigente, tornando-os, assim, uma realidade viável e acessível a um mercado crescente.

Anomalous H/D isotope effect on 35Cl NQR frequencies and H/D isotope effect on 1H MAS NMR spectra in pyrrolidinium p-chlorobenzoate

International Nuclear Information System (INIS)

Nakano, Ryo; Honda, Hisashi; Nakata, Eiichi; Takamizawa, Satoshi; Noro, Sumiko; Kimura, Taiki; Kyo, Shin-shin; Ishimaru, Shin'ichi; Miyake, Ryosuke

2010-01-01

An anomalous isotope effect was observed in the 35 Cl NQR frequency of pyrrolidinium p-chlorobenzoate (C 4 H 8 NH 2 + ·ClC 6 H 4 COO - ) by deuterium substitution of hydrogen atoms which form two kinds of N-H...O type hydrogen bonds. Large negative frequency shifts of the 35 Cl resonance lines, reaching 309 kHz at 77 K and 267 kHz at 293 K, were obtained upon deuteration, although the Cl atom in the molecule formed no hydrogen bonds in the crystal. 1 H MAS NMR lines showed significant changes by the deuterium substitution, while in contrast, small shifts of 13 C CP/MAS NMR signals were obtained. Our measurements of 1 H NMR spin-lattice relaxation times (T 1 ) suggested that the H/D isotope shifts detected from the 35 Cl NQR frequencies and 1 H NMR spectra are due to structural changes rather than molecular dynamics. Single-crystal X-ray diffraction measurements showed two remarkable H/D isotope differences in the molecular arrangements, (1) the N-H length along the crystallographic a axis became 1 pm shorter, and (2) the dihedral angle between benzene and the pyrrolidine ring changed by 1.1(2)deg upon deuteration. Using density functional theory estimations, the anomalous 35 Cl NQR frequency shifts and 1 H MAS NMR line-shape changes could be explained by the dihedral angle change rather than the N-H length difference. (author)

O vine e o diálogo audiovisual na cultura participativa

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Sheron Neves

2014-12-01

Full Text Available No atual ambiente midiático, a audiência possui ferramentas não apenas para consumir mas para produzir e distribuir conteúdo. Em um mercado onde as fronteiras entre entretenimento e publicidade se tornam cada vez menos claras, o conteúdo audiovisual e as comunidades formadas ao seu redor se tornam temas de estudo relevantes. Dominado pelo YouTube na primeira década do milênio, o mercado do vídeo online vem se ampliando em função da tecnologia mobile, e aplicativos para rápida produção e consumo de vídeo, como o Vine, que se destaca pelo seu caráter social e colaborativo. A proposta deste trabalho é examinar o potencial do Vine na publicidade – não aquela tradicionalmente interruptiva e unilateral, mas sim uma publicidade que entretém, envolve e convida a participar. Para isto, o caso da campanha Hollywood and Vines, da Airbnb, será analisado.

História, arquivo e memória: uma reflexão sobre a pesquisa histórica e a prática arquivística na contemporaneidade = History, archives and memory: a reflection on historic research and practice incontemporary archives

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Francisco, Julio César Bittencourt

2014-01-01

Full Text Available Este artigo discute a instituição arquivo enquanto lugar de trabalho do pesquisador. Seu objetivo é informar algumas qualidades do arquivo àquele que utiliza seus fundos e conjuntos de documentações, especialmente o historiador. A metodologia utilizada é a revisão de literatura da área publicada, utilizando o pensamento de autores consagrados, entrevistas e depoimentos de historiadores e diretores de arquivos, mas também a própria experiência empírica do autor como usuário. Os temas abordados aqui vão desde o funcionamento de um arquivo, sua vocação para novas tecnologias, mas também as funções a que se presta e de seu arquivista, enquanto operador e gestor de um conjunto de informações que são relevantes para a formação da memória social. O Arquivo então tem o poder de formar opiniões sobre o passado, auxiliar na tomada de decisões no presente e construir, desta forma, o futuro

PAPARAN SENG DI PERAIRAN KALIGARANG TERHADAP EKSPRESI Zn-THIONEIN DAN KONSENTRASI SENG PADA HATI IKAN MAS

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NK Dewi

2013-07-01

Full Text Available Penelitian bertujuan mengetahui paparan seng (Zn di perairan Kaligarang terhadap ekspresi Zn-thionein dan konsentrasi seng pada hati ikan mas (Cyprinus carpio L. Sebanyak 200 ekor ikan dibagi menjadi dua kelompok, masing-masing kelompok 100 ekor. Kelompok kontrol dipelihara di kolam ikan di Balai Benih Ikan Kabupaten Semarang, sedangkan kelompok perlakuan dipelihara pada karamba jaring apung di bagian hilir sungai Kaligarang. Setiap minggu sampel ikan diambil masing-masing lima ekor dari kedua kelompok secara acak untuk diambil organ hatinya dan dianalisis konsentrasi seng dan Zn-thionein. Ikan pada kedua kelompok dipelihara hingga Zn-thionein muncul pada hati ikan. Metallothionein diisolasi dari hati ikan dan dianalisis menggunakan metode High-Performance Liquid Chromatography, dengan larutan standar seng. Setiap satu minggu sekali, konsentrasi seng terlarut pada sampel air dari kedua kelompok diukur dengan metode Atomic Absorption Spectroscopy hingga Zn-thionein muncul. Hasil penelitian menunjukkan bahwa konsentrasi seng yang terlarut dalam air sungai Kaligarang adalah 0,078 mg/l, lebih tinggi dari nilai baku mutu air kelas I (0,05 mg/l. Rata-rata konsentrasi seng yang terabsorbi oleh hati ikan mas pada minggu ke-6 adalah 0,025868 mg/l, lebih rendah dari batas maksimum cemaran seng (100 mg/kg. Rata-rata konsentrasi seng pada hati ikan sebesar 0,025868 µg/g dapat menginduksi munculnya Zn-thionein pada hati ikan mas yang hidup di perairan Kaligarang pada minggu ke-6 perlakuan. The research aims to find concentration of dissolved zinc in the water of Kaligarang River and absorbed zinc concentration inside the liver of carp, also to analyze zinc exposure in Kaligarang River toward Zn-thionein induction inside the liver of carp. The concentration of dissolved zinc was measured using Atomic Absorption Spectroscopy method until Zn-thionein emerges. Metallothionein was isolated from the liver of carp and analyzed using High-Performance Liquid

Minho Affective Sentences (MAS): Probing the roles of sex, mood, and empathy in affective ratings of verbal stimuli.

Science.gov (United States)

Pinheiro, Ana P; Dias, Marcelo; Pedrosa, João; Soares, Ana P

2017-04-01

During social communication, words and sentences play a critical role in the expression of emotional meaning. The Minho Affective Sentences (MAS) were developed to respond to the lack of a standardized sentence battery with normative affective ratings: 192 neutral, positive, and negative declarative sentences were strictly controlled for psycholinguistic variables such as numbers of words and letters and per-million word frequency. The sentences were designed to represent examples of each of the five basic emotions (anger, sadness, disgust, fear, and happiness) and of neutral situations. These sentences were presented to 536 participants who rated the stimuli using both dimensional and categorical measures of emotions. Sex differences were also explored. Additionally, we probed how personality, empathy, and mood from a subset of 40 participants modulated the affective ratings. Our results confirmed that the MAS affective norms are valid measures to guide the selection of stimuli for experimental studies of emotion. The combination of dimensional and categorical ratings provided a more fine-grained characterization of the affective properties of the sentences. Moreover, the affective ratings of positive and negative sentences were not only modulated by participants' sex, but also by individual differences in empathy and mood state. Together, our results indicate that, in their quest to reveal the neurofunctional underpinnings of verbal emotional processing, researchers should consider not only the role of sex, but also of interindividual differences in empathy and mood states, in responses to the emotional meaning of sentences.

PERANAN GAYA KEPEMIMPINAN YANG EFEKTIF DALAM UPAYA MENINGKATKAN SEMANGAT DAN KEGAIRAHAN KERJA KARYAWAN DI TOSERBA SINAR MAS SIDOARJO

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Eddy Madiono Sutanto

2000-01-01

Full Text Available Leadership represents something that should be possessed by each leader of an organization. The effectiveness of a leader is determined by his ability to influence and direct the members of the organization. In order test the style of leadership which is effective at Toserba Sinar Mas in Sidoarjo, this research seeks to determine the relationship of leadership style with enthusiasm and excitement for work. In this study, it is found that the most effective leadership style is leadership which is adapted to the situation of the people being led. There is an indication that enthusiasm and excitement (measured by the level of absenteeism and worker turnover for work may decline as a result of unfavorable leadership. Abstract in Bahasa Indonesia : Kepemimpinan merupakan suatu hal yang seharusnya dimiliki oleh setiap pemimpin organisasi. Efektivitas seorang pemimpin ditentukan oleh kepiawaiannya mempengaruhi dan mengarahkan para anggotanya. Di dalam rangka untuk menguji gaya kepemimpinan yang efektif di Toserba Sinar Mas, Sidoarjo, maka penelitian ini dilakukan untuk membuktikan hubungan antara gaya kepemimpinan dengan semangat dan kegairahan kerja. Di dalam penelitian ini diungkapkan bahwa gaya kepemimpinan yang efektif adalah kepemimpinan yang disesuaikan dengan situasi dan kondisi dari orang-orang yang dipimpin. Indikasi turunnya semangat dan kegairahan kerja ditunjukkan dengan tingginya tingkat absensi dan perpindahan karyawan. Hal itu timbul sebagai akibat dari kepemimpinan yang tidak disenangi. Kata kunci: gaya kepemimpinan, semangat kerja, kegairahan kerja, tingkat absensi, tingkat perpindahan

Out-and-back {sup 13}C-{sup 13}C scalar transfers in protein resonance assignment by proton-detected solid-state NMR under ultra-fast MAS

Energy Technology Data Exchange (ETDEWEB)

Barbet-Massin, Emeline; Pell, Andrew J. [University of Lyon, CNRS/ENS Lyon/UCB Lyon 1, Centre de RMN a Tres Hauts Champs (France); Jaudzems, Kristaps [Latvian Institute of Organic Synthesis (Latvia); Franks, W. Trent; Retel, Joren S. [Leibniz-Institut fuer Molekulare Pharmakologie (Germany); Kotelovica, Svetlana; Akopjana, Inara; Tars, Kaspars [Biomedical Research and Study Center (Latvia); Emsley, Lyndon [University of Lyon, CNRS/ENS Lyon/UCB Lyon 1, Centre de RMN a Tres Hauts Champs (France); Oschkinat, Hartmut [Leibniz-Institut fuer Molekulare Pharmakologie (Germany); Lesage, Anne; Pintacuda, Guido, E-mail: guido.pintacuda@ens-lyon.fr [University of Lyon, CNRS/ENS Lyon/UCB Lyon 1, Centre de RMN a Tres Hauts Champs (France)

2013-08-15

We present here {sup 1}H-detected triple-resonance H/N/C experiments that incorporate CO-CA and CA-CB out-and-back scalar-transfer blocks optimized for robust resonance assignment in biosolids under ultra-fast magic-angle spinning (MAS). The first experiment, (H)(CO)CA(CO)NH, yields {sup 1}H-detected inter-residue correlations, in which we record the chemical shifts of the CA spins in the first indirect dimension while during the scalar-transfer delays the coherences are present only on the longer-lived CO spins. The second experiment, (H)(CA)CB(CA)NH, correlates the side-chain CB chemical shifts with the NH of the same residue. These high sensitivity experiments are demonstrated on both fully-protonated and 100 %-H{sup N} back-protonated perdeuterated microcrystalline samples of Acinetobacter phage 205 (AP205) capsids at 60 kHz MAS.

Molybdenum modified phosphate glasses studied by 31P MAS NMR and Raman spectroscopy.

Science.gov (United States)

Szumera, Magdalena

2015-02-25

Glasses have been synthesized in the system P2O5-SiO2-K2O-MgO-CaO modified by addition of MoO3. Glasses were prepared by conventional fusion method from 40 g batches. The influence of Mo-cations on the analysed glass structure was investigated by means of Raman and (31)P MAS-NMR techniques. It has been found that molybdate units can form Mo[MoO4/MoO6]-O-P and/or Mo[MoO4/MoO6]-O-Si bonds with non-bridging oxygens atoms of Q2 methaphosphate units, resulting in the transformation of chain methaphosphate structure into pyrophosphate and finally into orthophosphate structure. It has been also found that increasing amount of MoO3 in the structure of investigated glasses causes their gradual depolymerization and molybdenum ions in the analysed glass matrix act as modifying cations. Copyright © 2014 Elsevier B.V. All rights reserved.

1H-detected MAS solid-state NMR experiments enable the simultaneous mapping of rigid and dynamic domains of membrane proteins

Science.gov (United States)

Gopinath, T.; Nelson, Sarah E. D.; Veglia, Gianluigi

2017-12-01

Magic angle spinning (MAS) solid-state NMR (ssNMR) spectroscopy is emerging as a unique method for the atomic resolution structure determination of native membrane proteins in lipid bilayers. Although 13C-detected ssNMR experiments continue to play a major role, recent technological developments have made it possible to carry out 1H-detected experiments, boosting both sensitivity and resolution. Here, we describe a new set of 1H-detected hybrid pulse sequences that combine through-bond and through-space correlation elements into single experiments, enabling the simultaneous detection of rigid and dynamic domains of membrane proteins. As proof-of-principle, we applied these new pulse sequences to the membrane protein phospholamban (PLN) reconstituted in lipid bilayers under moderate MAS conditions. The cross-polarization (CP) based elements enabled the detection of the relatively immobile residues of PLN in the transmembrane domain using through-space correlations; whereas the most dynamic region, which is in equilibrium between folded and unfolded states, was mapped by through-bond INEPT-based elements. These new 1H-detected experiments will enable one to detect not only the most populated (ground) states of biomacromolecules, but also sparsely populated high-energy (excited) states for a complete characterization of protein free energy landscapes.

Images of the plant kingdom in the Mamluk encyclopedia Masālik al-abṣār by Ibn Faḍl Allāh al-‘Umarī (d. 1349)

OpenAIRE

Francesca Bellino

2016-01-01

This article aims at analyzing the representation of the plant kingdom in the Masālik al-abṣār fī mamālik al-amṣār, an Arabic encyclopaedia written by one the leading scholar of the Mamluk period, Šihāb al-Dīn Ibn Faḍl Allāh al-‘Umarī (1301-1349). The first part of the article offers an insight into the work of al-‘Umarī by presenting it in the framework of the encyclopaedic activities that characterize the fourteenth century. It also analyzes a number of special features of the Masālik al-ab...

Observation of immobile regions in natural rubber at ambient temperature by solid-state C-13 CP/MAS NMR spectroscopy

DEFF Research Database (Denmark)

Larsen, F.H.; Rasmussen, T.; Pedersen, Walther Batsberg

1999-01-01

Employing C-13 CP/MAS NMR spectroscopy, the existence of immobile regions in natural rubber (cis-1,4-polyisoprene) corresponding to a few percent of the monomer units has been detected at ambient temperature. For synthetic rubbers no immobile regions have been detected at all. Applying different...... physical and chemical treatments to natural rubber it is shown that mastication, gamma-irradiation, and increasing the temperature, slightly above the ambient, reduce the amount of immobile regions. (C) 1999 Elsevier Science Ltd. All rights reserved....

“Dar uma Zoada”, “Botar a Maior Marra”: Dispositivos Morais de Jocosidade como Formas de Efetivação e sua Relação com a Crítica

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Alexandre Werneck

2015-03-01

Full Text Available O objetivo deste artigo é analisar o papel desempenhado pela jocosidade em situações de crítica, que poderiam resultar em conflitos, mas que, por meio de dispositivos morais baseados no humor, mantêm a paz, sem prejuízo da própria crítica. O trabalho, baseado na observação etnográfica em ruas de um bairro periférico e do centro do Rio de Janeiro, enfatiza dois dispositivos: por um lado, a “zoação”, na qual a crítica é apresentada como se não fosse séria ou relevante, mas proporcionando ainda assim a colocação de algo em questão; e, de outro, a “marra”, na qual se recusa de forma competitiva a posição moral superior produzida pela crítica, atacando-se jocosamente o crítico com outra crítica, iniciando-se assim uma disputa. Em ambos os casos, a coordenação entre a forma-crítica ea forma-piada permitirão uma dupla mecânica de efetivação, sustentando um slack crítico, segundo o qual a percepção de negatividades morais permanece circulante, mas sem debates formais sobre princípios e ruptura da rotina.

Klientu attiecību pārvaldes sistēmas ieviešana IT uzņēmumā un pielāgošana tā biznesa vajadzībām

OpenAIRE

Šmitenbergs, Oskars

2006-01-01

Bakalaura darbs „Klientu attiecību pārvaldes sistēmas ieviešana IT uzņēmumā un pielāgošana tā biznesa vajadzībām” ir sistēmas Microsoft Dynamics™ CRM 3.0 ieviešanas procesa apraksts IT uzņēmumā SIA „UNITREE”. Darbs sniedz ieskatu sistēmas ieviešanas nepieciešamības cēloņos vidēja lieluma un lielos uzņēmumos. Kā viena no problēmu cēloņu novēršanas iespējām tiek piedāvāta Microsoft Dynamics™ CRM 3.0 ieviešana uzņēmumā, tāpēc darbā galvenokārt tiek apskatīta biznesa pārvaldības iespējas, izmanto...

O conceito de geração nas teorias sobre juventude

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Carles Feixa

2010-08-01

Full Text Available Desde Augusto Comte e Karl Mannheim (mas também desde José Ortega y Gasset e Antonio Gramsci, o conceito de geração tem sido um tema relevante nas ciências humanas e sociais. Como metáfora para a construção social do tempo, tem sido uma das categorias mais influentes não só no debate teórico, mas também no impacto público das pesquisas sobre juventude. Mesmo que o uso e abuso do conceito esteja enraizado no contexto europeu no período entre a Grande Guerra e a Segunda Guerra Mundial, tem sido relevante nos debates ideológicos e políticos de outras regiões. Este artigo representa uma tentativa de repensar o conceito de geração a partir de uma perspectiva histórica, destacando-se sua relevância para os debates contemporâneos sobre juventude.Since August Compte and Karl Mannheim (but also since José Ortega y Gasset and Antonio Gramsci, the concept of generation has been a relevant topic in social sciences and humanities. As a metaphor for the social construction of time, it has been one of the most influential categories, not only in the theoretical debate but also in the public effects of youth research. Even if the uses and abuses of the concept are rooted in the European context during the period between I and II World War, it has been relevant in the ideological and political debates of other regions. This paper is an attempt to rethink the concept of generation from an historical perspective, pointing-out its relevance for contemporary youth debates.

Antenatal betamethasone attenuates the angiotensin-(1-7)-Mas receptor-nitric oxide axis in isolated proximal tubule cells.

Science.gov (United States)

Su, Yixin; Bi, Jianli; Pulgar, Victor M; Chappell, Mark C; Rose, James C

2017-06-01

We previously reported a sex-specific effect of antenatal treatment with betamethasone (Beta) on sodium (Na + ) excretion in adult sheep whereby treated males but not females had an attenuated natriuretic response to angiotensin-(1-7) [Ang-(1-7)]. The present study determined the Na + uptake and nitric oxide (NO) response to low-dose Ang-(1-7) (1 pM) in renal proximal tubule cells (RPTC) from adult male and female sheep antenatally exposed to Beta or vehicle. Data were expressed as percentage of basal uptake or area under the curve for Na + or percentage of control for NO. Male Beta RPTC exhibited greater Na + uptake than male vehicle cells (433 ± 28 vs. 330 ± 26%; P 0.05). Ang-(1-7) significantly inhibited Na + uptake in RPTC from vehicle male (214 ± 11%) and from both vehicle (190 ± 14%) and Beta (209 ± 11%) females but failed to attenuate Na + uptake in Beta male cells. Beta exposure also abolished stimulation of NO by Ang-(1-7) in male but not female RPTC. Both the Na + and NO responses to Ang-(1-7) were blocked by Mas receptor antagonist d-Ala 7 -Ang-(1-7). We conclude that the tubular Ang-(1-7)-Mas-NO pathway is attenuated in males and not females by antenatal Beta exposure. Moreover, since primary cultures of RPTC retain both the sex and Beta-induced phenotype of the adult kidney in vivo they appear to be an appropriate cell model to examine the effects of fetal programming on Na + handling by the renal tubules. Copyright © 2017 the American Physiological Society.

Aspectos relevantes en la biología de Cetengraulis mysticetus (Günther (Pisces: Engraulidae en el Golfo de Nicoya, Costa Rica.

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Jorge Arturo Rodríguez

2016-03-01

Full Text Available Cetengraulis mistycetus es una anchoveta americana, que se encuentra localizada en la Costa Americana desde México hasta Perú. Su valor comercial es relevante en la parte interna del Golfo de Nicoya, ya que la flota artesanal tradicional la utiliza como carnada viva para la línea de anzuelos. En el presente estudio, se determinó la edad de la primera madurez sexual en 12,6 cm, la proporción sexual fue de 1:1,2 machos por hembra, para la época de mayor desove. La fecundidad total se estimo entre 48.498 oocitos en las tallas de 16 a 18,9 cm y de 98.278 oocitos en las tallas que van de 19 a 21,9 cm. La fecundidad relativa estimada fue de 813 oocitos por gramo de pez para el primer grupo de talla y de 1.145 oocitos por gramo de pez para el segundo. En el estudio biométrico, solamente la longitud dorsal fue la única relación que varió entre sexos siendo isométrica para hembras y alométrica negativa en machos, en el resto de relaciones el comportamiento entre sexos fue similar.

Adding real data to detect emotions by means of smart resource artifacts in MAS

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Jaime RINCÓN

2016-12-01

Full Text Available This article proposes an application of a social emotional model, which allows to extract, analyse, represent and manage the social emotion of a group of entities. Specifically, the application is based on how music can influence in a positive or negative way over emotional states. The proposed approach employs the JaCalIVE framework, which facilitates the development of this kind of environments. A physical device called smart resource offers to agents processed sensor data as a service. So that, agents obtain real data from a smart resource. MAS uses the smart resource as an artifact by means of a specific communications protocol. The framework includes a design method and a physical simulator. In this way, the social emotional model allows the creation of simulations over JaCalIVE, in which the emotional states are used in the decision-making of the agents.

1H CSA parameters by ultrafast MAS NMR: Measurement and applications to structure refinement.

Science.gov (United States)

Miah, Habeeba K; Cresswell, Rosalie; Iuga, Dinu; Titman, Jeremy J

2017-10-01

A 1 H anisotropic-isotropic chemical shift correlation experiment which employs symmetry-based recoupling sequences to reintroduce the chemical shift anisotropy in ν 1 and ultrafast MAS to resolve 1 H sites in ν 2 is described. This experiment is used to measure 1 H shift parameters for L-ascorbic acid, a compound with a relatively complex hydrogen-bonding network in the solid. The 1 H CSAs of hydrogen-bonded sites with resolved isotropic shifts can be extracted directly from the recoupled lineshapes. In combination with DFT calculations, hydrogen positions in crystal structures obtained from X-ray and neutron diffraction are refined by comparison with simulations of the full two-dimensional NMR spectrum. The improved resolution afforded by the second dimension allows even unresolved hydrogen-bonded sites 1 H to be assigned and their shift parameters to be obtained. Copyright © 2017 Elsevier Inc. All rights reserved.

Uso del FitoMas-E® como atenuante del estrés salino (NaCl durante la emergencia y crecimiento inicial de Ocimum basilicum L.

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D. Batista-Sánchez

2015-01-01

Full Text Available El uso de bioestimulantes vegetales estimula la emergencia y el crecimiento vegetal debido a que están compuestos por sustancias naturales como carbohidratos, péptidos de bajo peso molecular y aminoácidos, activadores de las funciones fisiológicas de las plantas, por lo que su aplicación permite un mejor aprovechamiento de los nutrientes y representa una opción para enfrentar problemas de estrés abiótico por salinidad. El objetivo de este estudio fue determinar el efecto del bioestimulante FitoMas-E® derivado de la caña de azúcar como atenuante de la salinidad en la emergencia y el crecimiento de plántulas de variedades de albahaca (Ocimum basilicum L. con respuesta diferencial al estrés por salinidad. Tres variedades de albahaca: Napoletano, Emily y Nufar se sometieron a cuatro concentraciones de NaCl (0, 50, 100 y 150 mM y cuatro dosis de FitoMas-E® (0, 0.5, 1.0 y 1.5 mL L-1 en un diseño completamente al azar con arreglo factorial con cuatro repeticiones. El trabajo se desarrolló en una estructura de malla sombra y las variables que se midieron fueron: porcentaje y tasa de emergencia, longitud de radícula, altura de la plántula, biomasa fresca y seca de radícula y de parte aérea. Los resultados evidenciaron que en condiciones de estrés salino (NaCl de moderado a severo, las variables disminuyeron significativamente. Largo de raíz, altura de planta y biomasa seca de raíz en 150 mM de NaCl fueron las más afectadas. Se observó que cuando se aplicó FitoMas-E® las plantas incrementaron significativamente sus valores en las variables, largo de raíz 32% y altura de planta 41%, lo que revela el efecto estimulante del FitoMas-E®, siendo 0.5 mL L-1 la dosis estimulante para la variedad Napoletano y 1.0 mL L-1 para la variedad Emily, aún y cuando se encontraban en condiciones de estrés salino hasta 100 mM de NaCl. Para la concentración de 150 mM se evidenció una afectación extrema para las variedades Emily y Nufar.

RELIGIÃO GUARANI NHANDEWA: UMA COMPLEXA ORGANIZAÇÃO E RECRIAÇÃO PARA A VIDA E A EDUCAÇÃO.

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Rosangela Célia Faustino

2010-05-01

Full Text Available O presente texto apresenta um estudo sobre aspectos históricos, culturais e religiosos dos Guarani Nhandewa evidenciando como a religião, antiga e atual são complexas em detalhes sendo elemento importantíssimo na cosmovisão dos grupos pois permeia todos os domínios da vida, da luta pela sobrevivência e permanência enquanto grupo étnico diferenciado. Destaca-se o relevante caráter da educação entendida como um dom sagrado, recebido de Nhanderu, mas que deve ser exercitada e aprendida por toda a vida pela mediação daqueles que sabem mais, os adultos e os mais velhos.

Discurso e abordagens quantitativas

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Giselle Machline de Oliveira e Silva

2001-02-01

Full Text Available

Este artigo revê o comportamento de diversos fenômenos de acordo com o estatuto informacional de seus referentes: a ocorrência de artigosdefinidos, a ordem do sujeito em relação a seu predicado, a topicalização deobjetos diretos, as sentenças clivadas, a ordem de orações de causa e de condição,e os marcadores discursivos. Ele mostra que a informação é uma restriçãopoderosa para a maioria dos fenômenos que tratam da ordem, mas muitomenos relevante para a colocação de artigos definidos e a co-ocorrência comalguns marcadores discursivos.

Com Furores de Marte e com Astúcias de Mercúrio: O Dell'Arte Historica (1636 de Agostino Mascardi

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Eduardo Sinkevisque

Full Text Available O ensaio apresenta, na primeira parte, o Dell'Arte Historica (1636 de Agostino Mascardi e seu ambiente letrado; traduz e comenta, na segunda parte, as passagens mais relevantes da preceptiva, a fim de estabelecer uma descrição de sua doutrina que permita definir, na terceira parte, os modos ibérico-italianos de escrita seiscentista da história em seus diferentes subgêneros. Pensa-se contribuir, assim, não só com a recepção do importantíssimo, mas quase desconhecido no Brasil, Dell'Arte Historica, como também contribuir para os estudos de gênero histórico do século XVII.

A comunicação política em forma de "notícias": questões técnicas, éticas e legais

OpenAIRE

Zamith, Fernando

2014-01-01

disseminação de mensagens camufladas de "notícias" é uma das estratégias mais comuns utilizadas pelos comunicadores políticos, sobretudo na atual era da Internet. Além da questão técnica, esta prática levanta relevantes questões éticas e legais. O conceito de notícia não é património exclusivo do jornalismo, mas sabemos bem que é o jornalismo que lhe dá força, valor e credibilidade. Ao apoderar-se do termo "notícia", o comunicador político não está mais do que a explorar a aceção positiva, fa...

A logística inversa : perspectiva empresarial relativamente ao conceito, devoluções e ambiente

OpenAIRE

Gonçalves, Mélodine Raquel Fernandes

2015-01-01

Mestrado em Engenharia e Gestão Industrial Exame público realizado em 29 de Janeiro de 2016 A Logística Inversa (LI) é um tema recente que tem conquistado um enorme interesse no mundo da investigação e um relevante espaço na operação logística das empresas. Isto é devido, não só ao seu potencial económico, mas também pela mudança da cultura de consumo, pela forte competitividade e pela crescente preocupação com a preservação ambiental. O seu potencial de recuperação de valor dos prod...

Incorporation of phosphorus guest ions in the calcium silicate phases of Portland cement from 31P MAS NMR spectroscopy.

Science.gov (United States)

Poulsen, Søren L; Jakobsen, Hans J; Skibsted, Jørgen

2010-06-21

Portland cements may contain small quantities of phosphorus (typically below 0.5 wt % P(2)O(5)), originating from either the raw materials or alternative sources of fuel used to heat the cement kilns. This work reports the first (31)P MAS NMR study of anhydrous and hydrated Portland cements that focuses on the phase and site preferences of the (PO(4))(3-) guest ions in the main clinker phases and hydration products. The observed (31)P chemical shifts (10 to -2 ppm), the (31)P chemical shift anisotropy, and the resemblance of the lineshapes in the (31)P and (29)Si MAS NMR spectra strongly suggest that (PO(4))(3-) units are incorporated in the calcium silicate phases, alite (Ca(3)SiO(5)) and belite (Ca(2)SiO(4)), by substitution for (SiO(4))(4-) tetrahedra. This assignment is further supported by a determination of the spin-lattice relaxation times for (31)P in alite and belite, which exhibit the same ratio as observed for the corresponding (29)Si relaxation times. From simulations of the intensities, observed in inversion-recovery spectra for a white Portland cement, it is deduced that 1.3% and 2.1% of the Si sites in alite and belite, respectively, are replaced by phosphorus. Charge balance may potentially be achieved to some extent by a coupled substitution mechanism where Ca(2+) is replaced by Fe(3+) ions, which may account for the interaction of the (31)P spins with paramagnetic Fe(3+) ions as observed for the ordinary Portland cements. A minor fraction of phosphorus may also be present in the separate phase Ca(3)(PO(4))(2), as indicated by the observation of a narrow resonance at delta((31)P) = 3.0 ppm for two of the studied cements. (31)P{(1)H} CP/MAS NMR spectra following the hydration of a white Portland cement show that the resonances from the hydrous phosphate species fall in the same spectral range as observed for (PO(4))(3-) incorporated in alite. This similarity and the absence of a large (31)P chemical shift ansitropy indicate that the hydrous (PO(4

Estudio osteométrico y selección de variables relevantes para clasificación de rostros en estudios de antropología forense

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Soncini, Julieta A.

2001-01-01

Full Text Available Se espera que este estudio contribuya a los análisis de identificación de restos óseos humanos, al proponer esta nueva vía de reducción del universo de búsqueda en la comparación de fotografías de personas en vida/ fichas pre - mortem y restos óseos N.N. En la presente investigación se han establecido un número mínimo de quince variables craneométricas para la clasificación de cráneos y la determinación de aquellas más relevantes para la diferenciación morfológica facial. La base de datos utilizada consta de una muestra de 159 cráneos y 31 variables craneométricas. Algunos de los análisis que hemos realizado con los datos obtenidos incluyen Técnicas Geométricas, Clasificaciones No Supervisadas, Clustering (Agrupamientos, Medidas de Similitud, Criterios de Clustering, Algoritmos Simples de Búsqueda de Clusters, Clasificadores de Mínima Distancia por Funciones Discriminantes - Lineales y el Algoritmo k-Medias.

Metallic nature of Sn{sub 1-} {sub x} Sb {sub x} O{sub 2{+-}} {sub {delta}} (x=0.0, 0.10 and 0.20) mixed oxides: Probed by {sup 119}Sn MAS NMR

Energy Technology Data Exchange (ETDEWEB)

Jayakumar, O.D. [Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085 (India)]. E-mail: ddjaya@apsara.barc.ernet.in; Sudarsan, V. [Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085 (India); Kulshreshtha, S.K. [Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085 (India)

2007-04-15

Antimony doped SnO{sub 2} samples were prepared by co-precipitation method and characterized by X-ray diffraction (XRD), {sup 119}Sn magic angle spinning nuclear magnetic resonance (MAS NMR) and variable temperature electrical conductivity measurements. Based on {sup 119}Sn MAS NMR measurements on these samples, it was established that only above 400 deg. C, the structural units of antimony and tin interacts, resulting in the metallic nature. Metallic behavior of the high-temperature heated samples was further confirmed by the variable temperature electrical conductivity measurements.

Analisis Laporan Keuangan Untuk Menilai Kinerja Keuangan PT. Sinar Mas Agro Resources and Technology. Tbk periode 2009, 2010 dan 2011

OpenAIRE

Monica, Marnala Stevi

2015-01-01

This study aims to look at how the development of the financial performance. Sinar Mas Agro Resources and Technology. Tbk for 3 years ie 2009, 2010 and 2011. In assessing the financial performance of the financial statements required to be analyzed. Financial statement analysis can be done using financial ratio analysis. Financial ratios are used in assessing the financial performance of this is the Current Ratio, Quick Ratio, Debt to Equity Ratio (DER), Debt to Asset Ratio (DAR), Total Asset...

Fetal betamethasone exposure attenuates angiotensin-(1-7)-Mas receptor expression in the dorsal medulla of adult sheep.

Science.gov (United States)

Marshall, Allyson C; Shaltout, Hossam A; Nautiyal, Manisha; Rose, James C; Chappell, Mark C; Diz, Debra I

2013-06-01

Glucocorticoids including betamethasone (BM) are routinely administered to women entering into early preterm labor to facilitate fetal lung development and decrease infant mortality; however, fetal steroid exposure may lead to deleterious long term consequences. In a sheep model of fetal programming, BM-exposed (BMX) offspring exhibit elevated mean arterial pressure (MAP) and decreased baroreflex sensitivity (BRS) for control of heart rate by 0.5-years of age associated with changes in the circulating and renal renin-angiotensin systems (RAS). In the brain solitary tract nucleus, angiotensin (Ang) II actions through the AT1 receptor oppose the beneficial actions of Ang-(1-7) at the Mas receptor for BRS regulation. Therefore, we examined Ang peptides, angiotensinogen (Aogen), and receptor expression in this brain region of exposed and control offspring of 0.5- and 1.8-years of age. Mas protein expression was significantly lower (>40%) in the dorsal medulla of BMX animals at both ages; however, AT1 receptor expression was not changed. BMX offspring exhibited a higher ratio of Ang II to Ang-(1-7) (2.30±0.36 versus 0.99±0.28; p<0.01) and Ang II to Ang I at 0.5-years. Although total Aogen was unchanged, Ang I-intact Aogen was lower in 0.5-year BMX animals (0.78±0.06 vs. 1.94±0.41; p<0.05) suggesting a greater degree of enzymatic processing of the precursor protein in exposed animals. We conclude that in utero BM exposure promotes an imbalance in the central RAS pathways of Ang II and Ang-(1-7) that may contribute to the elevated MAP and lower BRS in this model. Copyright © 2013 Elsevier Inc. All rights reserved.

La irrupción del imaginario social, las subjetividades y los sujetos en las ciencias sociales como asunto relevante para la investigación en educación

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Claudia Patricia Sierra

2015-12-01

Full Text Available Distintas disciplinas han cuestionado la dicotomía de la ciencia moderna entre mundo objetivo y mundo subjetivo. Autores como Durand, Bachelard, Cassirer, Castoriadis, Zemelman, Wunenburger, Ibáñez, entre otros, complejizaron el análisis del sujeto “racional” moderno y del sujeto “histórico” marxista, revalorando lo simbólico y la construcción de significaciones sobre la realidad como asuntos relevantes para comprender las dinámicas sociales. Sus cuestionamientos han permitido el surgimiento de miradas más complejas e investigaciones ancladas en otros horizontes. Este artículo hace énfasis en la importancia de lo imaginario para las ciencias sociales, particularmente en su relación con la constitución de subjetividades y sujetos, planteando posibles rastreos del tema en prácticas educativas populares.

PENGEMBANGAN EKOWISATA BERBASIS KERAKYATAN DI BANJAR NYUH KUNING, DESA MAS, UBUD

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AGUNG SRI SULISTYAWATI

2015-06-01

Full Text Available The objective of this study is (1 to identify the potential of Banjar Nyuh Kuning Mas Village, Ubud has to offer as means of attraction in ecotourism which may be accomplished by identifying physical and non physical potential. (2 to develope a community based strategy in ecotourism. The sampling technique used is purposive sampling and accidental sampling. Data collection is accomplished through observatioan, questionaire, focus group discussion and documentation. Data analysis is by qualitative descriptive and SWOT. The result of this study is that Banjar Nyuh Kuning has the potential to be developed as an ecotourism on the basis of physical and non physical grounds. The perception of the community and tourists are in agreement to the developement of ecotourism activity which incorporate local community, nature oriented activity and has the potential to increase their income, thus resulting in a destination for leisure and recreation. There are a few results of alternative strategies such as; development strategies of ecotourism products, development strategies of human resources, development strategies of management and strategies in upgrading security. To make Banjar Nyuh Kuning as an attraction for ecotourism activity which is based on nature then the strategy for development has to be efficient and limited. Further study has to be taken for the marketing aspect and managing ecotourism object to further the developent in a comprehensive manner.

Nanometer and molecular materials: the greatness of the very tiny; Materiales manometricos y moleculares: la grandeza de lo infimo

Energy Technology Data Exchange (ETDEWEB)

Rincon, Marina [Centro de Investigacion en Energia (CIE) de la UNAM, Temixco, Morelos (Mexico)

2010-07-01

Some of the materials have been present in our lives for many years, and now appear with unique or improved properties by the fact that they can be manufactured in the nanometer scale; that is, a million times smaller than a millimeter and with geometries that include the nanodots, the nanotubes, the nanowires, to mention a few of them. The most popular is the titanium dioxide (Titania), known by many as the white pigment in paints, sunscreens, cosmetics and others for their null toxicity, low cost and high stability. Strictly speaking, these features are really applicable to the micrometric material (which is a thousand times larger than the nanometer) and it is still to be proven toxicity and stability of the nanometer materials; but it is a fact that the nanometer titania is very popular in a multitude of applications that have to do with catalysis, sensors, and energy conversion and storing. We will also deal with conductive polymers, which are molecular conjugated materials. [Spanish] Algunos de los materiales han estado presentes en nuestras vidas por muchos anos y ahora aparecen con propiedades unicas o mejoradas por el hecho de que se pueden fabricar en la escala de los nanometros; esto es, un millon de veces mas pequenos que un milimetro y con geometrias que comprenden los nanopuntos, los nanotubos, los nanoalambres, por mencionar algunas. El mas popular es el dioxido de titanio (titania), conocido por muchos como el pigmento blanco de las pinturas, filtros solares, cosmeticos y demas, por su nula toxicidad, bajo costo y gran estabilidad. Estrictamente hablando, estas caracteristicas son realmente aplicables al material micrometrico (que es mil veces mas grande que el nanometrico) y todavia esta por probarse la toxicidad y estabilidad de los nanomateriales; pero es un hecho que la titania nanometrica es muy popular en un sinfin de aplicaciones que tienen que ver con catalisis, sensores, y conversion y almacenamiento de energia. Hablaremos tambien de

Tautas partijas reklāmas un sabiedrisko attiecību kampaņas pirms 7. un 9. Saeimas vēlēšanām

OpenAIRE

Velika, Anna

2007-01-01

Tautas partija tika nodibināta 1998.gada maijā, īsi pirms 7.Saeimas vēlēšanām. Pateicoties harizmātiskajam līderim A.Šķēlem, masīvai reklāmas un sabiedrisko attiecību kampaņai, kā arī tautas uzticībai un cerībām jaunā partija gūst uzvaru vēlēšanās. Taču uzmanību piesaista fakts, ka šī partija, kas ir neraksturīgi pašreizējai Latvijas politiskajai skatuvei, spēj iekarot stabilu vietu gan valdībā, gan pašvaldībās, un ar profesionālu kampaņu palīdzību gūt panākumus arī divās nākamajās Saeimas vē...

Spin-echo based diagonal peak suppression in solid-state MAS NMR homonuclear chemical shift correlation spectra

Science.gov (United States)

Wang, Kaiyu; Zhang, Zhiyong; Ding, Xiaoyan; Tian, Fang; Huang, Yuqing; Chen, Zhong; Fu, Riqiang

2018-02-01

The feasibility of using the spin-echo based diagonal peak suppression method in solid-state MAS NMR homonuclear chemical shift correlation experiments is demonstrated. A complete phase cycling is designed in such a way that in the indirect dimension only the spin diffused signals are evolved, while all signals not involved in polarization transfer are refocused for cancellation. A data processing procedure is further introduced to reconstruct this acquired spectrum into a conventional two-dimensional homonuclear chemical shift correlation spectrum. A uniformly 13C, 15N labeled Fmoc-valine sample and the transmembrane domain of a human protein, LR11 (sorLA), in native Escherichia coli membranes have been used to illustrate the capability of the proposed method in comparison with standard 13C-13C chemical shift correlation experiments.

Um ambiente multiagent system (MAS distribuído aplicado à gestão integrada da operação portuária

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Rodrigo de Alvarenga Rosa

2016-09-01

Full Text Available Tendo em vista o aumento do transporte marítimo no mundo e a consequente demanda por operações nos portos, os operadores buscam formas de minimizar o tempo de permanência dos navios no porto. Para atracar um navio, os portos necessitam ter disponíveis diversos recursos. Assim, planejar a designação de recursos eficientemente para não atrasar a atracação dos navios é vital para os portos. Esta designação é dinâmica, pois atrasos e antecipações na chegada dos navios ocorrem por diversos fatores demandando assim que ela seja atualizada constantemente. Este artigo propõe um Multiagent System (MAS para resolução da designação de recursos de forma distribuída e em tempo real, visando reduzir o tempo de espera para atracação dos navios. Testes foram realizados em 27 cenários e os resultados mostraram que o MAS resolveu instâncias de teste de grande porte e nos cenários mais próximos do real, ele resolveu em um tempo pequeno e com soluções estáveis.

{sup 1}H and {sup 23}Na MAS NMR spectroscopy of cationic species in CO{sub 2} selective alkaline earth metal porous silicoaluminophosphates prepared via liquid and solid state ion exchange

Energy Technology Data Exchange (ETDEWEB)

Arevalo-Hidalgo, Ana G. [Department of Chemical Engineering, University of Puerto Rico-Mayagueez Campus, Mayagueez, PR 00681-9000 (Puerto Rico); Dugar, Sneha; Fu, Riqiang [National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310 (United States); Hernandez-Maldonado, Arturo J., E-mail: arturoj.hernandez@upr.edu [Department of Chemical Engineering, University of Puerto Rico-Mayagueez Campus, Mayagueez, PR 00681-9000 (Puerto Rico)

2012-07-15

The location of extraframework cations in Sr{sup 2+} and Ba{sup 2+} ion-exchanged SAPO-34 was estimated by means of {sup 1}H and {sup 23}Na MAS NMR spectroscopy and spectral deconvolution. Incorporation of the alkaline earth metal cations onto the SAPO framework was achieved via liquid state ion exchange, coupled partial detemplation/solid-state ion exchange, and combination of both techniques. MAS NMR revealed that the level of ion exchange was limited by the presence of protons and sodium cations near hexagonal prisms (site SI), which are relatively difficult to exchange with the alkaline earth metal due to steric and charge repulsion criteria. In addition, the presence of ammonium cations in the supercages facilitated the exchange of otherwise tenacious hydrogen as corroborated by unit cell compositional data as well as enhanced CO{sub 2} adsorption at low partial pressures. The extraframework ammonium species were produced from partial detemplation of the structure-directing agent employed for the SAPO-34 synthesis, tetraethylammonium. - Graphical abstract: MAS NMR was used to elucidate the position the cationic species in alkaline earth metal exchanged silicoaluminophosphates. These species played a significant role during the ion exchange process and, therefore, the materials ultimate CO{sub 2} adsorption performance. Highlights: Black-Right-Pointing-Pointer Location of extraframework Sr{sup 2+} or Ba{sup 2+} cations was estimated by means of {sup 1}H and {sup 23}Na MAS NMR. Black-Right-Pointing-Pointer Level of Sr{sup 2+} or Ba{sup 2+} ion exchange was limited by the presence of protons and sodium cations. Black-Right-Pointing-Pointer Presence of ammonium cations in the supercages facilitated the exchange. Black-Right-Pointing-Pointer Sr{sup 2+} and Ba{sup 2+} ion exchanged SAPOs are outstanding CO{sub 2} adsorbents.

The Neuroprotective Effect of Cornus mas on Brain Tissue of Wistar Rats

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Renata Francik

2014-01-01

Full Text Available Cornelian cherry (Cornus mas is a valuable source of phenolic antioxidants. Flavonoid derivatives as nonenzymatic antioxidants are important in the pathophysiology of many diseases including neurological disorders (e.g., Alzheimer’s disease or heart disease. In this study, we examined the effect of an addition of freeze-dried fruit of cornelian cherry on three types of diets: control diet, fructose diet, and diet enriched in fats (high-fat diet. This effect was studied by determining the following antioxidant parameters in both brain tissue and plasma in rats: catalase, ferric reducing ability of plasma, paraoxonase, protein carbonyl groups, and free thiol groups. Results indicate that both fructose diet and high-fat diet affect the antioxidant capacity of the organism. Furthermore, an addition of cornelian cherry resulted in increased activity of catalase in brain tissue, while in plasma it caused the opposite effect. In turn, with regard to paraoxonase activity in both brain tissue and plasma, it had a stimulating effect. Adding cornelian cherry to the tested diets increased the activity of PON in both tested tissues. Moreover, protective effect of fruits of this plant was observed in the process of oxidation of proteins by decreasing levels of protein carbonyl groups and thiol groups in brain tissue as well as in plasma.

The cave paintings of the Covatina del Tossalet del Mas de la Rambla», Vilafranca, Castellón | Las pinturas rupestres de la "Covatina del Tossalet del Mas de la Rambla", Villafranca, Castellón | Las pinturas rupestres de la "Covatina del Tossalet del Mas de la Rambla", Villafranca, Castellón

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Norberto Mesado Olivier

1989-12-01

Full Text Available Vilafranca, en el linde N del País, conserva en «La Covatina del Tossalet del Mas de la Rambla», un grupo de unas 24 figuras pertenecientes al tradicionalmennte denominado «Arte Levantino», y que recientemente hemos convenido en llamar «Arte Rupestre del Neolítico Inciso». Destaca por novedosa la caza de una gran ave rapaz (posiblemente un córvido, herida por un proyectil procedente de una honda, arma que lleva un bello cazador en «vuelo», el cual viste sofisticadamente. Otro grupo de figuras humanas singulares aparecen capturando víboras, práctica que llegó tanto en Vilafranca como en el vecino pueblo de Castellfort, a los inicios del siglo XX. Tan singular depredación habrá de relacionarse con la extracción del mortífero veneno de la «vípera Latasti». Su empleo tanto pudo servir para empozoñar las puntas de las saetas de los cazadores prehistóricos de este importantísimo foco del Maestrazgo, o como «fármacos» al estilo de la «Triaca Magna». | Vilafranca, dans la limite Nord du Pays, a dans «La Covatina del Tossalet del Mas de la Rambla», un groupe d'unes 24 figures appartenant au traditionnelment dénomme «Arte Levantino» et que récemment on a accordé dénomé «Art Rupestre du Néolithique Haché». Détache, par nouvelle, la chasse d'un gran oiseau de proie (possiblement un Corvidé, bléssé par un projectile originaire d'une fronde d'un chasseur, lequel est habillé sophistiquément. Un autre groupe de figures humaines se trouve chassant des vipéres, usage qui est arrivé á Vilafranca jusqu'au XXéme siécle. Cette singuliére chasse doit étre lié a l'extraction du poison meutrier de la «Vipera Latasti». Sa finalité aurait bien pu étre empoisonner les pointes dis fleches utilisées par les chasseurs préhistoriques de cette tres importante aire du «Maestrazgo»; ou bien comme «medicament» du méme type que la »Triarca Magna».

Les schémas de sélection ovins laitiers en France : utilisation et importance des techniques modernes de reproduction

OpenAIRE

Astruc, J.M.; Lagriffoul, G.; Belloc, J.P.; Briois, M.; Cachenaut, J.B.; Horent, M.H.; Teinturier, M.H.

1995-01-01

La mise en oeuvre de programmes de sélection laitière, à l’échelle de toute une population ovine, suppose de développer un travail de sélection entre éleveurs, fondé sur l’organisation et la valorisation de liens génétiques entre troupeaux, essentiellement grâce à l’utilisation de l’IA. La situation en France est à cet égard révélatrice des différents niveaux d’organisation des schémas de sélection.

Procedures to enter the international market of the carbon and PEMEX electrical generation projects; Procedimientos para ingresar al mercado internacional del carbono y proyectos de generacion electrica de PEMEX

Energy Technology Data Exchange (ETDEWEB)

Zeferino Abundis, Yolanda [Universidad Nacional Autonoma de Mexico (UNAM), Mexico, D.F. (Mexico)

2006-11-15

The consumption and production of the electrical energy contribute to the gas emission that has the property of retaining heat in the atmosphere, giving rise to an increment in the global average temperature of the Earth, and causing a climatic change that the international scientific consensus describes as important alterations in the meteorological patterns. As a result of this, international actions were taken. The most ambitious agreement and by its quantified and obligatory character is presented the Kyoto Protocol, that forces the countries listed in Annex 1 to reduce their emissions through national measures and flexible mechanisms, within these last ones is the Clean Development Mechanism (CDM) that contemplates the mutual cooperation between developed and developing countries in the participation of projects tending to the reduction of gas emissions of greenhouse effect. Petroleos Mexicanos (PEMEX) has large necessities of electrical energy and steam, and counts on projects with characteristics that under the CDM cover the characteristics to be technical and economically viable. [Spanish] El consumo y produccion de la energia electrica contribuye a la emision de gases que tienen la propiedad de retener calor en la atmosfera, dando lugar a un incremento en la temperatura promedio global de la Tierra, y provocando un cambio climatico que el consenso cientifico internacional describe como alteraciones importantes en los patrones meteorologicos. A raiz de esto, se tomaron acciones internacionales. El acuerdo mas ambicioso y por su caracter cuantificado y obligatorio lo representa el Protocolo de Kyoto, quien obliga a los paises listados en el Anexo 1 a reducir sus emisiones a traves de medidas nacionales y mecanismos flexibles, dentro de estos ultimos se encuentra el Mecanismo de Desarrollo Limpio (MDL) que contempla la cooperacion mutua entre paises desarrollados y en vias de desarrollo en la participacion de proyectos tendientes a la reduccion de emisiones

Lightweight hydrogen-storage material Mg0.65Sc0.35D2 studied with 2H and 2H–{45Sc} MAS NMR exchange spectroscopy

NARCIS (Netherlands)

Srinivasan, S.; Magusin, P.C.M.M.

2011-01-01

Using double-quantum 2H MAS NMR with 45Sc recoupling and Bloch–Siegert compensated 2H–{45Sc} TRAPDOR we have identified the overlapping NMR signals of deuterium with and without scandium neighbors in Mg0.65Sc0.35D2, a candidate lightweight material for hydrogen storage. At room temperature we also

Morphological and Biochemical Characteristics of Fruits of Different Cornelian Cherry (Cornus mas L. Genotypes from Spontaneous Flora

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Felicia-Constantina CORNESCU

2017-12-01

Full Text Available The current study was carried out on six local cornelian cherry (Cornus mas L. genotypes, grown in Turceni town (Gorj county and Baita village (Hunedoara county, in Romania. Several morphological and biochemical characteristics of cultivars were determined. Fruit weight and fruit flesh ratio of the analyzed genotypes ranged from 1.33 to 2.31 g and 61.53 to 78.58% respectively. Soluble solid contents were determined, the lowest noted as 10% and the highest as 25.5%. Results have shown that there was a high diversity in cornelian cherry populations within different ecological areas. Differences were exhibited in terms of fruit size and biochemical characteristics. The results of the study are useful for attempting to select superior genotypes of cornelian cherry for culture.

27Al MAS NMR spectroscopic identification of reaction intermediates in the carbothermal reduction and nitridation of alumina

International Nuclear Information System (INIS)

Jung, Woo-Sik; Chae, Seen-Ae

2010-01-01

The reaction intermediates in the carbothermal reduction and nitridation (CRN) reaction of γ-Al 2 O 3 were identified by 27 Al magic-angle spinning (MAS) nuclear magnetic resonance (NMR) spectroscopy. This identification ruled out the possibility of a reaction mechanism involving the gaseous reaction intermediates. In the CRN reaction of γ-Al 2 O 3 , AlO 4 units were converted to AlN stepwise via AlN x O 4-x (x = 1, 2, 3) intermediates, while AlO 6 units were more slowly converted to AlN than AlO 4 units and the NMR peaks of partially nitridated AlO 6 units were not detected. The NMR peak intensities of partially nitridated AlO 4 units became weaker with increasing reaction temperature.

Burocratas da linha de frente: executores e fazedores das políticas públicas

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Antonio Oliveira

2012-12-01

Full Text Available A relação entre implementação das políticas, organização e burocracia é relevante porque ela ilumina a face de um problema crucial: o porquê de políticas serem bem-sucedidas ou fracassarem. As análises dessa relação indicam que o poder discricionário dos burocratas do nível da rua é um fator decisivo na distribuição de bens e serviços públicos; portanto, a ação desses agentes é uma variável relevante para o sucesso das políticas. Este artigo pretende discutir a discricionariedade dos burocratas do baixo escalão na aplicação das políticas públicas, usando como referência os argumentos apresentados na literatura especializada da implementação, da burocracia e da organização. A conclusão assinala questões que são importantes para o controle do poder discricionário dos agentes públicos, sublinhando que essa discrição é condição necessária à execução das políticas, mas que ela ameaça a accountability e a responsiveness.

Investigation of metallic elements in remainders of firings; Investigacion de elementos metalicos en residuos de disparos

Energy Technology Data Exchange (ETDEWEB)

Kochmann, Sonnia; Riquelme, Ildefonso [Division Tecnicas Analiticas Nucleares, Direccion de Investigacion y Ensenanza, Comision Nacional de Energia Atomica, San Lorenzo (Paraguay); Fernandez, Myriam; Vera Planas, Nestor [Laboratorio Quimico Biologico, Departamento de Investigacion de Delitos, Direccion de Apoyo Tecnico, Policia Nacional, Asuncion (Paraguay); Insauralde, Arieal; Sanabria, Felipe [Fisicoquimica Biologica, Facultad de Ciencias Quimicas, Facultad de Ciencias Quimicas, Universidad Nacional de Asuncion, San Lorenzo (Paraguay)

1999-07-01

The nuclear analysis its nondestructive characteristics of high sensibility, rapidity and specificity, offers optimal conditions for its application in forensic field, the determination of present metallic elements in the remainders of firings of, firearms like obtention of patterns that help systematic to distinguish originating remainders of other sources, like pyrotechnique devices or contamination of the labor environment, and but important, from the legal point of view, it contributes the certainty and it leaves the possibility of an expertise in a punishable fact taken to the court. [Spanish] Las tecnica analitica nuclear de espectrometria por fluorescencia de rayos X dispersiva en energia, por sus caracteristicas no destructivas de alta sencibilidad, rapidez y especificidad, brinda condiciones optimas para su aplicacion en en campo forense, en la determinacion de elementos metalicos presentes en los residuos de disparos de armas de fuego, asi como la obtension de patrones que ayuden a distinguir sistematicamente residuos provenientes de otras fuentes, como artefactos pirotecnicos o contaminacion del medio ambiente laboral, y lo mas importante, desde el punto de vista legal, aporta la certeza y deja abierta la posibilidad de una contrapericia en un hecho punible llevado a los estrados judiciales.

Use of the operation planning network at Centro Nacional de Control de Energia (CENACE); Uso de la red de planeacion de la operacion en el Centro Nacional de Control de Energia (CENACE)

Energy Technology Data Exchange (ETDEWEB)

Navarro, Roberto; Alatorre, Pedro; Gonzalez, Nemorio; Nieva, Rolando [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

1997-12-31

A description is made of the ways Comision Federal de Electricidad (CFE) utilizes the system called Short Term Operation Planning Network (Red de Planeacion de la Operacion a Corto Plazo) (REDPLA) in the elaboration of the generation daily pre-dispatch (PD) of the National Electric System (SEN). The PD defines the hourly generation with which each central must contribute, to cover the predicted demand during the following 24 hours, so that the total production cost be the lowest. Respecting at every moment the transmission limitations, the characteristics of the generation system and the operational restrictions. [Espanol] Se describe la manera en que la Comision Federal de Electricidad (CFE) utiliza el sistema denominado Red de Planeacion de la Operacion a Corto Plazo (Redpla) en la elaboracion del predespacho diario (PD) de generacion del sistema electrico nacional (SEN). El PD define la generacion horaria que debera aportar cada central electrica para cubrir la demanda pronosticada durante las proximas 24 horas, de tal manera que el costo de produccion total sea el mas bajo, respetando en todo momento las limitaciones de transmision, las caracteristicas del sistema de generacion y las restricciones operativas del sistema.

Use of the operation planning network at Centro Nacional de Control de Energia (CENACE); Uso de la red de planeacion de la operacion en el Centro Nacional de Control de Energia (CENACE)

Energy Technology Data Exchange (ETDEWEB)

Navarro, Roberto; Alatorre, Pedro; Gonzalez, Nemorio; Nieva, Rolando [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

1998-12-31

A description is made of the ways Comision Federal de Electricidad (CFE) utilizes the system called Short Term Operation Planning Network (Red de Planeacion de la Operacion a Corto Plazo) (REDPLA) in the elaboration of the generation daily pre-dispatch (PD) of the National Electric System (SEN). The PD defines the hourly generation with which each central must contribute, to cover the predicted demand during the following 24 hours, so that the total production cost be the lowest. Respecting at every moment the transmission limitations, the characteristics of the generation system and the operational restrictions. [Espanol] Se describe la manera en que la Comision Federal de Electricidad (CFE) utiliza el sistema denominado Red de Planeacion de la Operacion a Corto Plazo (Redpla) en la elaboracion del predespacho diario (PD) de generacion del sistema electrico nacional (SEN). El PD define la generacion horaria que debera aportar cada central electrica para cubrir la demanda pronosticada durante las proximas 24 horas, de tal manera que el costo de produccion total sea el mas bajo, respetando en todo momento las limitaciones de transmision, las caracteristicas del sistema de generacion y las restricciones operativas del sistema.

Estimation of the resource and technological prospective of geothermal energy in Mexico (Annexe 3 in 'A vision of year 2030 on the use of the renewable energies in Mexico'); Estimacion del recurso y prospectiva tecnologica de la geotermia en Mexico (Anexo 3 en 'Una vision al 2030 de la utilizacion de las energias renovables en Mexico')

Energy Technology Data Exchange (ETDEWEB)

Iglesias R, Eduardo; Arellano G, Victor; Torres R, Rodolfo Joaquin [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

2005-08-15

Due to its individual geologic-structural characteristics, Mexico counts on abundant geothermal resources. At the moment we count on a database that includes 2,332 geothermal manifestations distributed in 27 of the 32 Mexican states, the geothermal resources are classified as high temperature and intermediate or low temperature resources. Those of high temperature can be used for the generation of electrical energy. Those of intermediate to low temperature are more appropriate for direct applications of the geothermal heat. As of today, in Mexico exist four geothermal fields of high temperature that are being exploded for the electrical generation. [Spanish] Debido a sus particulares caracteristicas geologico-estructurales, Mexico cuenta con abundantes recursos geotermicos. Actualmente contamos con una base de datos que incluye 2,332 manifestaciones geotermicas distribuidas en 27 de los 32 estados mexicanos, los recursos geotermicos se clasifican en de alta temperatura y recursos de temperatura intermedia a baja. Los de alta temperatura pueden utilizarse para la generacion de energia electrica. Los de temperatura intermedia a baja son mas apropiados para aplicaciones directas del calor geotermico. Actualmente en Mexico existen cuatro campos geotermicos de alta temperatura que estan siendo explotados para la generacion electrica.

Determination of structural topology of a membrane protein in lipid bilayers using polarization optimized experiments (POE) for static and MAS solid state NMR spectroscopy

Energy Technology Data Exchange (ETDEWEB)

Mote, Kaustubh R. [University of Minnesota, Department of Chemistry (United States); Gopinath, T. [University of Minnesota, Department of Biochemistry, Molecular Biology and Biophysics (United States); Veglia, Gianluigi, E-mail: vegli001@umn.edu [University of Minnesota, Department of Chemistry (United States)

2013-10-15

The low sensitivity inherent to both the static and magic angle spinning techniques of solid-state NMR (ssNMR) spectroscopy has thus far limited the routine application of multidimensional experiments to determine the structure of membrane proteins in lipid bilayers. Here, we demonstrate the advantage of using a recently developed class of experiments, polarization optimized experiments, for both static and MAS spectroscopy to achieve higher sensitivity and substantial time-savings for 2D and 3D experiments. We used sarcolipin, a single pass membrane protein, reconstituted in oriented bicelles (for oriented ssNMR) and multilamellar vesicles (for MAS ssNMR) as a benchmark. The restraints derived by these experiments are then combined into a hybrid energy function to allow simultaneous determination of structure and topology. The resulting structural ensemble converged to a helical conformation with a backbone RMSD {approx}0.44 A, a tilt angle of 24 Degree-Sign {+-} 1 Degree-Sign , and an azimuthal angle of 55 Degree-Sign {+-} 6 Degree-Sign . This work represents a crucial first step toward obtaining high-resolution structures of large membrane proteins using combined multidimensional oriented solid-state NMR and magic angle spinning solid-state NMR.

Las redes Eurydice y Quipu: potencial para la educación comparada

Directory of Open Access Journals (Sweden)

Mercedes Muñoz-Repiso Izaguirre

1997-01-01

Full Text Available Como ejemplo significative de las posibles aportaciones que los organismosinternacionales pueden ofrecer a quienes trabajan en Educacion Comparada, este articulo presenta un pormenorizado analisis de las dos redes internacionales de informacioneducativa en las que Espana se encuentra actualmente integrada: Eurydice, de la Union Europea y Quipu, de la Organizacion de Estados Iberoamericanos para la Educacion, la Ciencia y la Cultura. En 61 se hace referencia a los origenes de estas redes, su estructuray sufuncionamiento, y se detallan las actividades mas relevantes que desempefian, planteando, al mismo tiempo, reflexiones sobre sus posibilidades para los comparatistas, para los politicos y administradores de la educacion y para el publico en general, as! como sus aspectos mejorables y propuestas para mejorarlos

Residual dipolar couplings in sup 3 sup 1 P MAS spectra of PPh sub 3 substituted cobalt complexes

CERN Document Server

Szalontai, G

2002-01-01

Residual dipolar couplings between sup 3 sup 1 P- sup 5 sup 9 Co spin pairs were studied in sup 3 sup 1 P MAS spectra of mono- and dinuclear cobalt-triphenylphosphine complexes. These spectra can provide important information such as the scalar coupling between the dipolar phosphorus and the quadrupolar cobalt nuclei normally not available from solution phase studies. In case of complementary (NQR or x-ray) data even the relative orientation of the interacting shielding, dipolar, scalar couplings, and electric field gradient tensors or internuclear distances can be determined. Examples are shown both for well resolved and practically unresolved cases, factors which possibly control the spectral resolution are discussed in detail. (author)

Assessing Heterogeneity of Osteolytic Lesions in Multiple Myeloma by 1H HR-MAS NMR Metabolomics

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Laurette Tavel

2016-10-01

Full Text Available Multiple myeloma (MM is a malignancy of plasma cells characterized by multifocal osteolytic bone lesions. Macroscopic and genetic heterogeneity has been documented within MM lesions. Understanding the bases of such heterogeneity may unveil relevant features of MM pathobiology. To this aim, we deployed unbiased 1H high-resolution magic-angle spinning (HR-MAS nuclear magnetic resonance (NMR metabolomics to analyze multiple biopsy specimens of osteolytic lesions from one case of pathological fracture caused by MM. Multivariate analyses on normalized metabolite peak integrals allowed clusterization of samples in accordance with a posteriori histological findings. We investigated the relationship between morphological and NMR features by merging morphological data and metabolite profiling into a single correlation matrix. Data-merging addressed tissue heterogeneity, and greatly facilitated the mapping of lesions and nearby healthy tissues. Our proof-of-principle study reveals integrated metabolomics and histomorphology as a promising approach for the targeted study of osteolytic lesions.

KANDUNGAN KIMIA SERAT KENAF DARI KOMPOS KULIT UDANG DENGAN PESTISIDA ALAMI KEONG MAS

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Rusmini Rusmini

2017-10-01

Full Text Available Kenaf cultivation generally uses chemical fertilizers and pesticides to increase production despite the adverse effects of those chemicals toward environmental ecosystem. Meanwhile, there are a lot of unutilized wastes produced from agriculture and fishery. Kenaf is an environmentally friendly producer of natural fibers and can produce diversified products, such as paper, wallcover, car interior, geotextile, soil safer, fiber drain, particle board, and plastic reinforcement as well as biofuel industry raw materials. The research aims to produce chemistry fiber kenaf best with the provision of organic fertilizer shrimp compost and natural pesticide snail mas. The study used a Randomized Block Design with two factors with the first factor compost of shrimp (k consisting of 3 levels and the second factor was vegetable pesticide consisting of three levels (p. In each of these studies repeated as many as 2 replications so that there are 18 overall treatment. The observed variables of chemical fiber content include holocellulose, cellulose and lignin. Data obtained, analyzed using analysis of variance  and continued with the smallest real difference test at 5% test level. The results showed that there was holocellulose content in the best kenaf fiber in the treatment of p2 k2 that was equal to 80,28005, for the best cellulose content was p0ko taht was equal to 40,5695 %while for lignin was not continued further test because it showed no real difference. Penanaman  tanaman  kenaf  umumnya menggunakan pupuk kimia untuk meningkatkan produksi, padahal pupuk kimia berbahaya bagi ekosistem lingkungan, sementara banyak sekali limbah pertanian dan perikanan yang tidak termanfaatkan bahkan  menjadi sampah.   Kenaf merupakan tanaman penghasil serat alam yang ramah lingkungan dan bisa menghasilkan berbagai produk diversifikasi, seperti : kertas, pelapis dinding, interior mobil, geotekstil, soil safer, fiber drain, particle board, dan reinforcement plastik

Aspectos relevantes dos SAD nas organizações: um estudo exploratório Relevant aspects from DSS in organizations: an empirical investigation

Directory of Open Access Journals (Sweden)

Adriana Zenaide Clericuzi

2006-04-01

Full Text Available A informação vem auxiliando as organizações a alcançarem seus objetivos num ambiente de crescente concorrência, exigindo delas rapidez, flexibilidade e alta percepção. A abrangência cada vez maior do uso dos Sistemas de Apoio à Decisão (SAD como suporte na solução de problemas tem como proposta o processamento de informação para reduzir a incerteza e resolver conflitos. Este artigo tem como objetivo fazer uma investigação sobre os SAD nas organizações brasileiras. Para tal, foi conduzida uma pesquisa exploratória e descritiva, sobre o assunto, foram utilizados questionários que investigaram os SAD nas empresas brasileiras e aspectos relevantes destes sistemas.Information is supporting organizations to reach theirs objectives. Competition is increasing in organizational environment, requiring capability, flexibility and high perception. Decision Support Systems (DSS are becoming greater as a tool for solution of problems, processing information to reduce uncertain in decision problems and deciding conflicts. The objective of this paper is reports a study about DSS in organizations. For such an empirical investigation of literature in DSS and an empirical research were done. Questionnaires had been used to investigate the relevant aspects of SAD in the Brazilian companies.

Atitudes frente a aspectos relevantes da prática médica: estudo transversal randomizado com alunos de segundo e sexto anos

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Adriana Rainha Mascia

Full Text Available Estudo transversal com duas amostras randomizadas de 50 alunos do segundo e 50 do sexto ano de graduação em Medicina. Foi aplicado um questionário com questões abertas e a escala "Instrumento de avaliação de atitudes de estudantes de medicina frente a aspectos relevantes da prática médica" (Colares, 2002. A escala contém 52 questões referentes à: 1. Aspectos psicológicos e emocionais nas doenças orgânicas e mentais; 2. Manejo de situações relacionadas à morte; 3. Atenção primária à saúde; 4. Aspectos relacionados à doença mental; 5. Contribuição do médico ao avanço científico da medicina; 6. Outros aspectos relacionados à atuação médica e às políticas de saúde. As atitudes são categorizadas em positivas, negativas e conflitantes. Observou-se que os estudantes apresentaram atitudes positivas frente a pelo menos três dos seis aspectos abordados; os alunos do segundo ano e do sexto ano apresentaram diferença estatisticamente significativa (chi² = 6,901, g.l. = 1, p < 0,05 nas atitudes relacionadas ao fator 2 (manejo de situações relacionadas à morte.

Lipid-lowering effects of statins; Efectos no hipolipemiantes de las estatinas

Energy Technology Data Exchange (ETDEWEB)

Ramos-Esquivel, Allan; Leon-Cespedes, Carlos [Univ. de Costa Rica, Escuela de Medicina, Dept. de Fisiologia (Costa Rica)

2007-10-15

Statins have become one of the most prescribed drugs in the world. These medications are used in the treatment of dyslipidemia and in the prevention of cardiovascular diseases. Recently, new evidence has emerged about their mechanisms of action and their pleiotropic properties, well beyond lowering cholesterol levels. This pharmacodynamic action has called the attention of many investigators who suggest their use in several diseases centered on inflammation, immune disorders and cell proliferation. Although there is wide evidence that recognizes their efficacy in several disease models, there is still a lack of studies to approve their use in clinical practice. The pharmacodynamic properties focusing on the pathophysiology that suggests their clinical use in the treatment of several diseases have been reviewed. (author) [Spanish] Las estatinas se han convertido en una de las drogas mas prescritas en el mundo. Este tipo de farmacos es utilizado en el tratamiento de la dislipidemia y en la prevencion de la enfermedad cardiovascular. Recientemente, ha surgido nueva evidencia sobre sus mecanismos de accion y son bien conocidas sus propiedades pleiotropicas, mas alla de la disminucion de los niveles de colesterol. Esta caracteristica farmacodinamica ha llamado la atencion de muchos investigadores quienes sugieren su uso en diferentes enfermedades que se centran en la inflamacion, en desordenes de la inmunidad y en la proliferacion celular. Aunque hay amplia evidencia que reconoce su eficacia en diversos modelos de enfermedades, todavia existe una falta de estudios que apoyen su uso en la practica clinica. El mecanismo de accion de estos farmacos y de la base fisiopatologica que sugiere su uso clinico en diferentes enfermedades han sido revisados. (autor)

Obtaining aluminas from the thermal decomposition of their different precursors: An {sup 27}Al MAS NMR and X-ray powder diffraction studies

Energy Technology Data Exchange (ETDEWEB)

Chagas, L.H.; De Carvalho, G.S.G. [Universidade Federal de Juiz de Fora, Departamento de Química, Grupo de Físico-Química de Sólidos e Interfaces, 36036-330 Juiz de Fora, MG (Brazil); San Gil, R.A.S. [Universidade Federal do Rio de Janeiro, Instituto de Química, 21949-900 Rio de Janeiro, RJ (Brazil); Chiaro, S.S.X. [PETROBRAS-CENPES, 21941-915 Rio de Janeiro, RJ (Brazil); Leitão, A.A. [Universidade Federal de Juiz de Fora, Departamento de Química, Grupo de Físico-Química de Sólidos e Interfaces, 36036-330 Juiz de Fora, MG (Brazil); Diniz, R., E-mail: renata.diniz@ufjf.edu.br [Universidade Federal de Juiz de Fora, Departamento de Química, Grupo de Físico-Química de Sólidos e Interfaces, 36036-330 Juiz de Fora, MG (Brazil)

2014-01-01

Graphical abstract: - Highlights: • We synthesized three precursors of alumina from different methods. • The calcination of the precursors generated several alumina polymorphs. • XRD and NMR were used for structural investigation of the polymorphs. • The synthesis route determines the structural and textural properties of the solids. - Abstract: A commercial sample of Boehmite was used as precursor of alumina polymorphs. For comparison, three other precursors were synthesized from different methods. Particularly, the use of excess of urea promoted a very crystalline form of basic aluminum carbonate. The characteristics of the four precursors were investigated by thermal, vibrational and X-ray powder diffraction (XRD) analysis. Additionally, the nuclear magnetic resonance, with magic angle spinning ({sup 27}Al MAS NMR), was used to verify the coordination of aluminum cations. Each precursor was calcined at various temperatures generating alumina polymorphs, which were structurally analyzed by XRD and {sup 27}Al MAS NMR. Due to interest in catalysis supports, special attention was given to the γ-Al{sub 2}O{sub 3} phase, which in addition to structural investigation was subjected to textural analysis. The results showed that, from different synthesis procedures and common route of calcination, one can obtain materials with the same composition but with different structural and textural properties, which in turn can significantly influence the performance of a supported catalyst.

Tagging of blast resistance gene(s) to DNA markers and marker-assisted selection (MAS) in rice improvement

International Nuclear Information System (INIS)

Zhuang, J.Y.; Lu, J.; Qian, H.R.; Lin, H.X.; Zheng, K.L.

1998-01-01

This paper reports progress made on the tagging of blast resistance gene(s) to DNA markers and on the initiation of marker-assisted selection (MAS) for blast resistance in rice improvement. A pair of near isogenic lines, K8OR and K79S, were developed using a Chinese landrace Hong-jiao-zhan as the resistance donor. Ten putatively positive markers were identified by screening 177 mapped DNA markers. Using the F 2 population of 143 plants and the derived F 3 lines, three Restriction Fragment Length Polymorphism (RFLP) markers (RG81, RG869 and RZ397) on chromosome 12 of rice were identified to be closely linked to the blast resistance gene Pi-12(t). The genetic distance between Pi-12(t) and the closest marker RG869 was 5.1 cM. By employing the bulk segregant analysis (BSA) procedure, six of 199 arbitrary primers were found to produce positive Randomly Amplified Polymorphic DNA (RAPD) bands. Tight linkage between Pi-12(t) and three RAPD bands, each from a different primer, was confirmed after amplification of DNA of all F 2 individuals. Two fragments were cloned and sequenced, and two sequence characterised amplified re-ion (SCAR) markers were established. In two other F 3 populations, Xian-feng I/Tetep and Xian-feng, 1/Hong-jiao-zhan, the blast resistance was found to be controlled by interactions of two or more genes. One resistance gene was located in the vicinity of RG81 in both populations. Work to identify other gene(s) is currently under way. Marker assisted selection for blast resistance was initiated. Crosses were made between elite varieties and blast resistance donors to develop populations for DNA marker-assisted selection of blast resistance. In addition, 48 varieties widely used in current rice breeding programs were provided by rice breeders. DNA marker-based polymorphism among, these varieties and resistance donors were analysed to produce a database for future MAS program. (author)

Aspectos Relevantes Acerca de la Producción de Maíz y Trigo Bajo la Perspectiva de Datos en Painel

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Dilamar Dallemole

2014-11-01

Full Text Available O comércio internacional de commodities tem intensificado um processo de significativas transformações no setor agropecuário, base das principais cadeias agroalimentares, nas mais variadas regiões. Regulamentações supranacionais acabam por ser incorporadas ao processo produtivo que, associadas ao aumento na demanda por alimentos, intensificam as exigências e pressionam a produção no campo. Envolto a tais condicionantes, os mercados de milho e trigo ajustam-se e evoluem de acordo com estes novos paradigmas e, por serem responsáveis por expressivos impactos socioeconômicos, torna-se oportuno identificar aspectos relevantes acerca da produção e compreender a dinâmica de suas relações. Sob essa perspectiva, o horizonte volta-se para a determinação dos condicionantes da produção de milho e trigo, por meio da identificação das categorias de maior influência. Empregou-se o modelo analítico de Dados em Painel, no sentido de mensurar quais categorias são responsáveis pelas alterações na oferta, com as devidas correlações e tendências. Os resultados apontam para a necessidade de políticas moderadas de ajuste de câmbio, incentivo às exportações e ao consumo, pois tratam-se dos fatores mais importantes no que se refere a impactos sobre a produção nestes mercados.

Characteristics and properties of oil-well cements auditioned with blast furnace slag; Cementos petroleros con adicion de escoria de horno alto. Caracteristicas y propiedades

Energy Technology Data Exchange (ETDEWEB)

Sanchez, R.; Palacios, M.; Puertas, F.

2011-07-01

The present paper addresses the alkali activation of Portland cements containing blast furnace slag (20 and 30% by cement weight) with a view to the possible use of these materials in oil well construction. The hydration studies conducted showed that in cement/slag blends, the sodium silicate activator partially inhibited the dissolution of the silicate phases in the Portland cement, retarding cement hydration and reducing the precipitation of reaction products. Due to such partial inhibition, the cement/slag blends had significantly lower mechanical strength than Portland cements hydrated with water. {sup 2}9Si and {sup 2}7Al MAS NMR and BSE/EDX studies, in turn, showed that the CSH gel forming in the alkali-activated cement/slag pastes contained Al in tetrahedral positions and low Ca/Si ratios. (Author) 29 refs.

Produkta izvietošana kinofilmās kā reklāmas veids un tā efektivitāte; 2009. gada 10 skatītāko kinofilmu Latvijā analīze

OpenAIRE

Goģe, Sandra

2010-01-01

Bakalaura darbs „PRODUKTA IZVIETOŠANA KINOFILMĀS KĀ REKLĀMAS VEIDS UN TĀ EFEKTIVITĀTE; 2009. GADA 10 SKATĪTĀKO KINOFILMU LATVIJĀ ANALĪZE” ir izstrādāts ar mērķi aplūkot produkta izvietošanu kinofilmās kā reklāmas veidu. Darba teorētiskajā daļā tiek apskatīta produkta izvietošanas teorija, kino un izklaides industrija, produkta izvietošanas process un atribūcijas teorijas. Darba pētnieciskajā daļā tiek veikta 2009. gada 10 skatītāko kinofilmu Latvijā kontentanalīze, ar eksperimenta palīdzību t...

Important factors for BPR success in manufacturing firms Fatores relevantes para o êxito de reengenharia de processos em empresas de manufatura

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Tor Guimaraes

1998-04-01

� aqui definido em três diferentes aspectos: metas e objetivos do projeto, benefícios obtidos do projeto, e o impacto no desempenho da empresa. A partir dos resultados da pesquisa, são apresentadas recomendações para que os gerentes foquem sua atenção e recursos nos fatores relevantes ao êxito e procedam de forma a minimizar o risco de fracasso. Questionários foram enviados pelo correio a gerentes e diretores de auditoria interna de 586 empresas de manufatura selecionadas aleatoriamente. Obteve-se uma amostra de 135 questionários, representando uma taxa de resposta de 22 por cento. De modo geral, as empresas não estão enfatizando algumas das mais importantes atividades e tarefas recomendadas na literatura de reengenharia, tais como mudança para processos de negócio orientados para o mercado, o elemento que adiciona valor a cada atividade de negócios e aplicação da inovação tecnológica adequada. Baseado nos resultados, recomenda-se à alta administração que não se engaje em projetos de reengenharia antes de ter assegurado a presença dos fatores de êxito considerados relevantes na pesquisa. Embora os resultados sejam baseados em empresas de manufatura, os mesmos podem ser generalizados para outros setores.

CINEMA E LITERATURA: mediações em “Bonitinha, mas ordinária”

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Elen Duarte MIRANDA e SILVA

2011-01-01

Full Text Available A partir de um intenso movimento de metamorfoses técnicas e narrativas, o cinema passou de seu estado inicial de mero copiador da realidade à categoria de arte e vem estabelecendo uma forte e íntima relação de diálogo com a literatura. É a partir dessa relação que o destaque dessa pesquisa consiste em uma análise sobre a literatura dramatúrgica de Nelson Rodrigues e sua respectiva adaptação pelo cinema de Braz Chediak, com ênfase no trabalho em parceria entre escritor e cineasta:Bonitinha, mas ordinária: até que ponto o filme se subordina ao texto? Há inventividade na inscrição cinematográfica de Braz? Qual o teor criativo da narrativa do cineasta? Em que instância o filme foi produzido? Qual a tendência estética adotada pelo diretor? Essas questões são desvendadas através da colaboração teórica de Roland Barthes, Ismail Xavier, Sábato Malgadi e Robert Stam, bem como alguns outros estudiosos que pensam cinema e literatura e entram em cena para adensarem a análise feita sobre o objeto colocado em foco.

Phosphole complexes of Gold(I) halides: Comparison of solution and solid-state structures by a combination of solution and CP/MAS 31P NMR spectroscopy and x-ray crystallography

International Nuclear Information System (INIS)

Attar, S.; Nelson, J.H.; Bearden, W.H.; Alcock, N.W.; Alyea, E.C.

1990-01-01

A series of complexes of 1-phenyldibenzophosphole (DBP), 1-phenyl-3,4,-dimethylphosphole (DMPP), and triphenylphosphine of the type L n AuX (n = 1, L = DBP, DMPP, Ph 3 P, X = Cl, Br, I; n = 3, L = DBP, X = Cl, Br, I; n = 3, L = Ph 3 P, X = Cl; n = 4, L = DBP, DMPP, X = PF 6 ) have been prepared and characterized. The structures of (DBP)AuCl (1), (DBP) 3 AuCl (2), and (DMPP)AuCl (3) have been determined from three-dimensional x-ray data collected by counter methods. Crystal structure of the complexes is reported. The CP/MAS 31 P( 1 H) NMR spectrum of complex 1 shows two resonances in a 1:1 intensity ratio, and the CP/MAS 31 P( 1 H) NMR spectrum of complex 3 shows three resonances in a 1:1:1 intensity ratio for reasons that are not yet understood. Though the three phospholes are crystallographically inequivalent (d(AuP) = 2.359 (1), 2.382 (1), and 2.374 (2) angstrom) the molecule has effective C s symmetry as evidenced by the observation of two 31 P resonances in a 2:1 intensity ratio in its CP/MAS 31 P( 1 H) NMR spectrum. Variable-temperature 31 P( 1 H) NMR spectra obtained on solutions of LAuCl + L in various ratios were analyzed to determine the nature of the species present in solution and to gain information regarding their relative stabilities as a function of the nature of the phosphine. 79 refs., 8 figs., 9 tabs

Hydration properties and phosphorous speciation in native, gelatinized and enzymatically modified potato starch analyzed by solid-state MAS NMR

DEFF Research Database (Denmark)

Larsen, Flemming H.; Kasprzak, Miroslaw Marek; Lærke, Helle Nygaard

2013-01-01

Hydration of granular, gelatinized and molecularly modified states of potato starch in terms of molecular mobility were analyzed by 13C and 31P solid-state MAS NMR. Gelatinization (GEL) tremendously reduced the immobile fraction compared to native (NA) starch granules. This effect was enhanced...... by enzyme-assisted catalytic branching with branching enzyme (BE) or combined BE and β-amylase (BB) catalyzed exo-hydrolysis. Carbons of the glycosidic α-1,6 linkages required high hydration rates before adopting uniform chemical shifts indicating solid-state disorder and poor water accessibility...... regions was only observed in NA starch. Moreover phosphorous was observed in a minor pH-insensitive form and as major phosphate in hydrated GEL and BE starches....

The Structure of the Fantômas Novel Series by Pierre Souvestre and Marcel Allain and the Problem of Seriality in Popular Literature

Directory of Open Access Journals (Sweden)

Kirill A. Chekalov

2017-12-01

Full Text Available The essay examines the structure of a 32-volume series of Fantômas novels created by Pierre Souvestre and Marcel Allain; it traces the origins and development of the serial genre and generic novelties related to seriality. The latter include a relative autonomy of each story in each volume and interconnection of the volumes via the figure of the criminal “slipping away” from the hands of justice. The study compares poetological techniques of the fabula development and points out specific features of the Belle époque reality as represented through the introduction of recognizable “cultural signs,” varia- tions of everyday incidents, and newspaper chronicle of criminal events. It also analyzes the image of Fantômas and other recurrent characters of the series (such as Juve, Fan- dor, Hélène, Lady Maud Beltham, etc. The authors examine para-literary features that can be traced in many other different forms such as TV series and graphic novels. They include (1 mythologization of the main character as embodiment of Evil, or a “criminal genius”; (2 confusion of the real and the fictional, verisimilar and extraordinary, horri- ble and comic based on the variations of literary and journalistic clichés; (3 repetition of plot patterns, (4 attempts to guess and to meet reader’s expectations.

CP/MAS 13C NMR characterization of the isomeric states and intermolecular packing in tris(8-hydroxyquinoline) aluminum(III) (Alq3).

Science.gov (United States)

Kaji, Hironori; Kusaka, Yasunari; Onoyama, Goro; Horii, Fumitaka

2006-04-05

The isomeric states and intermolecular packing of tris(8-hydroxyquinoline) aluminum(III) (Alq(3)) in the alpha-, gamma-, and delta-crystalline forms and in the amorphous state, which are important for understanding the light-emitting and electron-transport properties, have been analyzed by CP/MAS (13)C NMR. This simple NMR experiment shows that the isomeric state of alpha- and amorphous Alq(3) is meridional, whereas that of gamma- and delta-Alq(3) is facial. In the amorphous Alq(3), the inclusion of facial isomers has been under debate. Our experiments show that meridional isomers are dominant in the amorphous Alq(3), although the existence of facial isomers cannot be completely denied. The local structure of amorphous Alq(3) is similar to that of alpha-Alq(3) and is significantly different from those of gamma- and delta-Alq(3). Among these Alq(3) samples, the effect of intermolecular interaction is not found only for gamma-Alq(3). This finding can explain the good solvent solubility of gamma-Alq(3), compared with the other crystalline forms. It is also shown that the structures are locally disordered not only for amorphous Alq(3) but also for alpha-Alq(3), although clear X-ray diffraction peaks are observed for alpha-Alq(3). In contrast, the local structures of gamma- and delta-Alq(3) are well defined. A clear relation is found between the spectral patterns of CP/MAS (13)C NMR and the fluorescence wavelengths; the samples, which consist of facial isomers, show blue-shifted fluorescence compared with those of meridionals.

Mas-related G protein coupled receptor-X2: A potential new target for modulating mast cell-mediated allergic and inflammatory diseases.

Science.gov (United States)

Ali, Hydar

2016-12-01

Mast cells (MCs) are tissue resident immune cells that are best known for their roles in allergic and inflammatory diseases. In addition to the high affinity IgE receptor (FcεRI), MCs express numerous G protein coupled receptors (GPCRs), which are the most common targets of drug therapy. Neurokinin 1 receptor (NK-1R) is expressed on MCs and contributes to IgE and non-IgE-mediated responses in mice. Although NK-1R antagonists are highly effective in modulating experimental allergic and inflammatory responses in mice they lack efficacy in humans. This article reviews recent findings that demonstrate that while neuropeptides (NPs) activate murine MCs via NK-1R and Mas related G protein coupled receptor B2 (MrgprB2), they activate human MCs via Mas-related G protein coupled receptor X2 (MRGPRX2). Interestingly, conventional NK-1R antagonists have off-target activity against mouse MrgprB2 but not human MRGPRX2. These findings suggest that the failure to translate studies with NK-1R antagonists from in vivo mouse studies to the clinic likely reflects their lack of effect on human MRGPRX2. A unique feature of MRGPRX2 that distinguishes it from other GPCRs is that it is activated by a diverse group of ligands that include; neuropeptides, cysteine proteases, antimicrobial peptides and cationic proteins released from activated eosinophils. Thus, the development of small molecule MRGPRX2-specific antagonists or neutralizing antibodies may provide new targets for the treatment of MC-mediated allergic and inflammatory diseases.

Entrevista a un masón. Perspectiva antropológica de una realidad ignorada (José J. L. Gómez

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Carlos Peláez Paz

2007-05-01

Full Text Available El texto nos acerca a una realidad declarada ignorada, que suscita la fantasía y la especulación morbosa de lo desconocido, de aquello que situamos entre la leyenda, lo esotérico y la realidad. Aleccionados en el prejuicio contra la masonería, hemos crecido en los temores, malentendidos, estereotipos e incluso una cierta estigmatización de masones y logias, presentes en el recorrido de nuestra historia, teñida por las luchas políticas y fratricidas de las diversas Españas y el, recordado en el libro, “contubernio judeo masónico”.

Nutritional value of Rosa spp. l. and Cornus mas l. fruits, as affected by storage conditions

Directory of Open Access Journals (Sweden)

Craita-Maria Rosu

2011-12-01

Full Text Available A comparison between two storage methods (freezing and drying of fruits, in terms of ascorbic acid, carotenes, total sugar and protein content in Rosa spp. L. species and Cornus mas L. was performed. In the dried rose hips, the major losses were registered at the level of ascorbic acid content (32.04–50.25 %, followed by carotenes (30.85–52.08 %, total sugar (21.57–34.6 % and protein content (21.33–46.89 %. The freezing method resulted in a better preservation of ascorbic acid (only 19.80–29.21 % decrease and total sugar content (3.41–12.94 % increase. In the preserved cornelian cherry fruits, no statistically significant differences were registered between fruits categories, except carotene content, which was dramatically decreased in dried fruits (88.23 %. For cornelian cherry fruits, both storage methods induced a decrease of ascorbic acid and protein contents (57.60 and 46.32 % and an increase of total sugar level (37.60 %.

Can Memory Assessment Services (MAS) in England be categorized? A national survey.

Science.gov (United States)

Chrysanthaki, T; Fernandes, B; Smith, S; Black, N

2017-12-01

The effectiveness and efficiency of memory assessment services (MASs) is unknown. Our aim was to determine if a typology can be constructed, based on shared structural and process characteristics, as a basis for a non-randomized evaluation of their effectiveness and cost-effectiveness. Survey of random sample of 73 MASs in 2015; comparison of characteristics and investigation of inter-correlation. It was not possible to group characteristics to form the basis of a typology of MASs. However, there was considerable variation in staff numbers (20-fold), new patients per whole-time equivalent (WTE) staff (20-fold), skill mix and the nurse:doctor ratio (1-10). The operational performance also varied: first appointments (50-120 minutes); time for first follow-up (2-12 weeks); frequency of follow-up in first year (1-5). These differences were not associated with the number of new patients per WTE staff or the accreditation status of the MAS. Post diagnosis, all MASs provided pharmacological treatment but the availability of non-pharmacological support varied, with half providing none or only one intervention while others providing four or more. In the absence of any clear typology, evaluation of MASs will need to focus on the impact of individual structural and process characteristics on outcomes. © The Author 2017. Published by Oxford University Press on behalf of Faculty of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com

O esquecimento do ser no romance: a análise kunderiana dos diferentes aspectos da existência através de egos experimentais e hipóteses ontológicas

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Heraldo Aparecido Silva

2017-05-01

Full Text Available Este artigo tem por objetivo analisar alguns aspectos da relação entre o romance e a filosofia a partir das ideias do romancista tcheco Milan Kundera. Primeiro, mostra que o advento dos tempos modernos pode ser atribuído não somente a Descartes, mas também a Cervantes, quando o romance recupera temas e funções esquecidos ou negligenciados pela filosofia. Finalmente, a noção de sabedoria do romance é evidenciada para se contrapor à obsessiva busca filosófica pela verdade absoluta e também para enfatizar que as transformações e possibilidades humanas mais relevantes são ocasionadas principalmente pela sensibilidade e imaginação literárias do que pela argumentação filosófica.

Studies using 27Al MAS NMR of AFm and AFt phases and the formation of Friedel's salt

International Nuclear Information System (INIS)

Jones, M.R.; Macphee, D.E.; Chudek, J.A.; Hunter, G.; Lannegrand, R.; Talero, R.; Scrimgeour, S.N.

2003-01-01

This paper describes the application of the magic angle spinning (MAS) NMR spectroscopy to study the chemical environment of 27 Al-bearing phases in Portland cement-based concrete. A specific methodology is described that allows reliable spectra to be determined for combinations of different types of cements and fillers (in this case, Portland cement, fly ash, slag, silica fume, metakaolin and limestone filler). As well as the study of 'molecular structure' of cement matrix, the paper reviews the mechanism of Friedel's salt formation in cement systems. Mechanisms based on ion exchange of chloride for hydroxide in hydroxy-AF m and on chloride absorption on formation are discussed. Finally, the nature of the chloride/hydrate binding phenomena are described to provide a reasonable robust and fundamental picture of the role different cements can play in the provision of overall concrete durability to chloride ingress from a chemical perspective

Em direção a uma teoria da produção internacional de serviços de infraestrutura

Directory of Open Access Journals (Sweden)

Frederico Araujo Turolla

2013-04-01

Full Text Available Este artigo discute elementos de uma teoria da produção internacional de serviços de infraestrutura. Eu apresento uma visão microeconômica sobre as principais falhas de mercado dos serviços de infraestrutura, e argumento que as idiossincrasias destes setores podem exigir modificações nas atuais teorias de negócios internacionais para a explicação do contexto específico dos investimentos diretos estrangeiros em infraestrutura. O artigo discute as vantagens de propriedade relevantes, principalmente na definição de padrões e na capitalização; as vantagens de localização que são mais claras, mas que não operam da forma convencional. A entrada preventiva assegura vantagens de pioneiro à luz da natureza transitória das janelas de oportunidade. A internalização, embora aparentemente não seja relevante, pode se mostrar importante em transações específicas envolvendo a contratação de projetos e de financiamento. O processo de internacionalização das firmas de infraestrutura pode também merecer adaptações, mesmo considerando a versão mais recente do modelo de Uppsala que leva em conta o passivo de ser externo à rede.

Penetration of the renewable sources of energy in Mexico: group of approach on possible carrying future events for the renewable energies (Annexe 12 in 'A vision of year 2030 on the use of the renewable energies in Mexico'); Penetracion de las fuentes renovables de energia en Mexico: grupo de enfoque sobre posibles eventos portadores de futuro para las energias renovables (Anexo 12 en 'Una vision al 2030 de la utilizacion de las energias renovables en Mexico')

Energy Technology Data Exchange (ETDEWEB)

Pernudi, Montserrat; Alonso C, Antonio [Analitica Consultores SA de CV, Mexico DF (Mexico)

2005-08-15

This report corresponds to the results obtained in the group of consultation to experts on possible events or carrying future events, that is to say, events that in happening could be determinant for the later evolution of the renewable energies in Mexico. Conducted on May 26, 2005 in Mexico City with a small group of approach, the objectives of the meeting were to define possible events or relevant carrying future events for the evolution of the renewable energies in Mexico between years 2005 and 2030 and, to explore the most relevant components of possible scenarios on the future evolution (2005-2030) of the renewable energies in Mexico. [Spanish] Este informe corresponde a los resultados obtenidos en el grupo de consulta a expertos sobre posibles eventos o sucesos portadores de futuro, esto es, eventos que de ocurrir podrian ser determinantes para la evolucion posterior de las energias renovables en Mexico, realizado el 26 de mayo de 2005 en la ciudad de Mexico con un pequeno grupo de enfoque. Los objetivos de la reunion: definir posibles eventos o sucesos portadores de futuro relevantes para la evolucion de las energias renovables en Mexico entre los anos 2005 y 2030 y, explorar los componentes mas relevantes de posibles escenarios sobre la evolucion futura (2005-2030) de las energias renovables en Mexico.

EU-sponsored photovoltaic systems for rural electrification

Energy Technology Data Exchange (ETDEWEB)

Riesch, Gerhard [Joint Research Centre of the European Union, JRC, Ispra (Italy)

1995-12-31

Development and proliferation of renewable energies are sponsored since 1983 by the European Union, normally up to 40% of the cost. (Programme THERMIE and predecessors). In the frame of this programme for more than one hundred projects of all kinds with thousands of photovoltaic energy supply systems have been implemented in Europe, 29 of these projects with 939 single pv-systems concern electrification of rural sites (e.g. agriculture) or isolated sites (e.g. mountain huts). Most of the single systems are of small size, 50 to 1000 Wp. A few of the systems are larger, up to 25 kWp, and supply local isolated mini-grids. In this paper the main features of the systems in six european countries are presented: The technical, economical and social results as well as the contributions of the Electric Power Utility (EPU`s) to these electrification are discussed. [Espanol] Desde 1983 la Union Europea ha auspiciado normalmente hasta el 40% del costo del desarrollo y proliferacion de las energias renovables. (Programa THERMIE y predecesores). En el marco de este programa con mas de cien proyectos de todos tipos, con miles de sistemas fotovoltaicos de suministro de energia, han sido implantados en Europa, 29 de estos proyectos con 929 sistemas fotovoltaicos sencillos se relacionan con la electrificacion de sitios rurales (por ejemplo agricultura) o de sitios aislados (por ejemplo cabanas en la montana). La mayoria de los sistemas sencillos son de pequeno tamano, 50 a 1000 Wp. Unos pocos de los sistemas son mas grandes, hasta de 25 kWp y alimentan mini-redes locales aisladas. En este articulo se presentan las caracteristicas principales de los sistemas en seis paises europeos: se analizan los resultados tecnicos, economicos y sociales, asi como las contribuciones de las empresas electricas.

Investigations on the nature and physical concentration of Spanish uraniferous quartzites; Estudios de caracterizacion y concentracion fisica de cuarcitas uraniferas espanolas

Energy Technology Data Exchange (ETDEWEB)

Lora, F de [Direccion de Plantas Piloto e Industriales, Junta de Energia Nuclear, Madrid (Spain)

1967-06-15

A study was made of a sample of radioactive material from Santa Elena (Jaen) containing 130 ppm U{sub 3}O{sub 8}, 300 ppm ThO{sub 2}, 4.96% ZrO{sub 2} and 14.29% TiO{sub 2}. Over 150 million tons of material were examined. In the light of the studies carried out the material can be defined as a rutilo-zirconiferous quartzite with a double radioactivity source due to the uranium enclosed in the zircon lattice structure and to the presence of monazite. The possibility of brannerite or davidite being present can be discarded. There is likewise no conclusive evidence of the presence of sphene, rutile being the most abundant titanium mineral. The author determined the features of the ore with a view to its physical concentration and applied magnetic and gravimetric separation and the flotation process. The use of oleic acid as collector has permitted good zircon recovery. (author) [Spanish] Se ha estudiado una muestra de material radiactivo procedente de Santa Elena (Jaen) con 130 ppm de U{sub 3}O{sub 8}, 600 ppm de ThO{sub 2}, 4,96% de ZrO{sub 2} y 14,29% de TiO{sub 2}. El material examinado es considerable: mas de 150 millones de toneladas. De acuerdo con los estudios realizados se puede definir como una cuarcita rutilo-circonifera con dos fuentes de radiactividad debidas al uranio englobado en la red del circon y a la presencia de monacita. Se descarta la posibilidad de existencia de brannerita o davidita. Tampoco existen pruebas concluyentes de que contenga esfena, siendo el ratilo el mineral de titanio mas abundante. Se han determinado las caracteristicas de la mena con vistas a su concentracion fisica. Se ha ensayado la separacion magnetica, gravimetrica y flotacion. El empleo de acido oleico, como colector, ha dado buenas recuperaciones de circon. (author)

EU-sponsored photovoltaic systems for rural electrification

Energy Technology Data Exchange (ETDEWEB)

Riesch, Gerhard [Joint Research Centre of the European Union, JRC, Ispra (Italy)

1996-12-31

Development and proliferation of renewable energies are sponsored since 1983 by the European Union, normally up to 40% of the cost. (Programme THERMIE and predecessors). In the frame of this programme for more than one hundred projects of all kinds with thousands of photovoltaic energy supply systems have been implemented in Europe, 29 of these projects with 939 single pv-systems concern electrification of rural sites (e.g. agriculture) or isolated sites (e.g. mountain huts). Most of the single systems are of small size, 50 to 1000 Wp. A few of the systems are larger, up to 25 kWp, and supply local isolated mini-grids. In this paper the main features of the systems in six european countries are presented: The technical, economical and social results as well as the contributions of the Electric Power Utility (EPU`s) to these electrification are discussed. [Espanol] Desde 1983 la Union Europea ha auspiciado normalmente hasta el 40% del costo del desarrollo y proliferacion de las energias renovables. (Programa THERMIE y predecesores). En el marco de este programa con mas de cien proyectos de todos tipos, con miles de sistemas fotovoltaicos de suministro de energia, han sido implantados en Europa, 29 de estos proyectos con 929 sistemas fotovoltaicos sencillos se relacionan con la electrificacion de sitios rurales (por ejemplo agricultura) o de sitios aislados (por ejemplo cabanas en la montana). La mayoria de los sistemas sencillos son de pequeno tamano, 50 a 1000 Wp. Unos pocos de los sistemas son mas grandes, hasta de 25 kWp y alimentan mini-redes locales aisladas. En este articulo se presentan las caracteristicas principales de los sistemas en seis paises europeos: se analizan los resultados tecnicos, economicos y sociales, asi como las contribuciones de las empresas electricas.

Um ano de muitas preocupações, mas também de esperanças

Directory of Open Access Journals (Sweden)

Gabriela Litre

2015-12-01

Full Text Available O ano de 2015 foi farto em notícias ruins, mas se encerra com perspectivas boas. As más notícias confirmam que o mundo parece estar de cabeça para baixo, ao menos em matéria ambiental e de segurança internacional. Pioraram as condições climáticas globais; fanáticos religiosos lançaram ataques terroristas de grandes proporções, como os do dia 13 de novembro em Paris, além da surpreendente constituição de uma base territorial onde reina o terror, no Oriente Médio; uma persistente situação da pobreza extrema e de fome em grande escala em alguns países contrasta com a prosperidade em algumas nações; desastres ambientais e instabilidades políticas regionais e nacionais acontecem em cada continente. No Brasil, o rompimento de uma represa de lama e resíduos tóxicos de uma mineradora, em Mariana, Minas Gerais, provocou o que possivelmente seja a pior catástrofe ambiental já registrada no País.

Climate change adaptation in Tanjung Mas – Semarang: a comparison between male- and female-headed households

Science.gov (United States)

Handayani, W.; Ananda, M. R.; Esariti, L.; Anggraeni, M.

2018-03-01

Mainly due to its complexity, the effort to mainstream gender in addressing climate change issues has been far from the satisfying result. However, there is an urgent call to accommodate gender lens issues and to become more gender sensitive in an attempt to have an effective intervention in responding climate change impact. To enrich the reports on gender and climate change adaptation in city-based case, this paper aims to elaborate climate change adaptation in Tanjung Mas – Semarang city focusing on the gender perspective analysis in male- and female-headed households. The quantitative descriptive method is applied to carry out the analyses, including adaptive strategy and gender role analyses. The research result indicates there are not any significant differences in the climate change adaptation strategies applied in male- and female-headed households. This shows that women in the female-headed households, with their double burden, performed well in managing their roles. Therefore, in particular perspective, it may not be relevant to state that woman and female-headed households are likely to be more vulnerable compared with their counterparts.

Fate of [15N]glycine in peat as determined by 13C and 15N CP-MAS NMR spectroscopy

International Nuclear Information System (INIS)

Benzing-Purdie, L.M.; Cheshire, M.V.; Williams, B.L.; Sparling, G.P.; Ratcliffe, C.I.; Ripmeester, J.A.

1986-01-01

Peat samples, nonsterile, sterilized by γ irradiation or autoclaving, were incubated with [ 15 N]glycine for a period of 6 months. The 13 C NMR data showed the established trend of increased humification with decreasing particle size and that autoclaving had significantly disturbed the humification-particle size distribution. The 15 N CP-MAS NMR spectra showed the presence of [ 15 N]glycine in all fractions after incubation. 15 NH 4 + , a result of either biological or chemical deamination, was one of the main products in the nonsterile peat series. The 15 N spectra also showed resonances corresponding to amine, secondary amide, and pyrrole-type nitrogen and the presence of glycine derivatives and melanoidins. The results presented give the first spectroscopic evidence of the possible involvement of the Maillard reaction in the humification process

Current instabilities under HF electron gas heating in semiconductors with negative differential conductivity

Energy Technology Data Exchange (ETDEWEB)

Gurevich, Yu. G.; Logvinov, G. N. [Instituto Politecnico Nacional, Mexico, D.F. (Mexico); Laricheva, N. [Datmouth College, New Hampshire (United States); Mashkevich, O. L. [Kharkov University, Kharkov (Ukraine)

2001-10-01

A nonlinear temperature dependence of the kinetic coefficients of semiconductor plasma can result in the appearance of regions of negative differential conductivity (NDC) in both the high-frequency (HF) and static current-voltage characteristics (CVC). In the present paper the formation of the static NDC under simultaneous electron gas heating by HF and static electric field is studied. As is shown below, in this case the heating electromagnetic wave has a pronounced effect on the appearance of NDC caused by the overheating mechanisms and the type of the static CVC as a whole. [Spanish] Una dependencia no lineal de la temperatura de los coeficientes cineticos del plasma del semiconductor puede llevar a la aparicion de regiones con conductividad diferencial negativa (CDN) en las caracteristicas corriente voltaje (CCV) de alta frecuencia (AF) y estatica. En este articulo se estudia la formacion de la CDN estatica bajo la accion simultanea del calentamiento del gas de electrones por AF y el campo electrico estatico. Como se muestra mas adelante, en este caso la onda electromagnetica que calienta a los electrones ejerce un fuerte efecto en la aparicion de la CDN; que se obtiene por mecanismos de sobrecalentamiento, y en el tipo de CCV estatica.

Classification and identification of hazardous residues; Clasificacion e identificacion de residuos peligrosos

Energy Technology Data Exchange (ETDEWEB)

Soto V, Federico; Obaya V, Adolfo; Guerrero, Claudia [Universidad Nacional Autonoma de Mexico, Mexico, D.F. (Mexico)

1996-06-01

In this work, we present the classification and identification of hazardous industrial residues. Mexico has had a wide industrial development in last years, for instance the chemical, steel and petroleum industries, and it has had important effects in the waste industrial generation from different processes. For this reason it is important to diffuse how the correct classification and identification of industrial wastes is made, for insuring their handling, treatment and adequate disposal. [Spanish] En este articulo se presentan los principales aspectos a considerar en la clasificacion e identificacion de los residuos industriales peligrosos. Mexico, considerado como un pais en vias de desarrollo, ha mantenido en los ultimos anos un amplio crecimiento industrial y uno de los mas altos del mundo en poblacion. Esta situacion ha orillado a intensificar la explotacion de los recursos naturales mediante la actividad minera, la siderurgica, la industria quimica, la petrolera, etcetera. Todo esto ha repercutido indudablemente en la generacion de residuos de tan diversa naturaleza como lo son los procesos y las materias primas involucradas, con caracteristicas que van desde los poco riesgosos hasta los altamente peligrosos. Por esta razon, la clasificacion e identificacion de los residuos peligrosos es de suma importancia para asegurar su adecuado manejo, tratamiento y disposicion.

Aspectos relevantes no diagnóstico de dort e fibromialgia Important aspects of diagnosing work-related musculoskeletal disorders (WMSD and fibromyalgia

Directory of Open Access Journals (Sweden)

JF Alencar

2009-02-01

Full Text Available CONTEXTUALIZAÇÃO: A dor crônica e difusa encontra-se presente tanto nas Lesões por Esforços Repetitivos (LER/Distúrbios Osteomusculares Relacionados ao Trabalho (DORT como na Fibromialgia, trazendo dificuldades diagnósticas, preventivas e terapêuticas para profissionais da saúde envolvidos no tratamento de acometidos. OBJETIVOS: Analisar os aspectos relevantes na emissão dos diagnósticos de DORT e Fibromialgia na percepção de médicos assistenciais e peritos. MÉTODOS: Neste estudo, 75 médicos (36 assistenciais e 39 peritos responderam a questões estruturadas e abertas sobre aspectos considerados relevantes na emissão de diagnóstico destas síndromes. RESULTADOS: As respostas dos dois grupos foram correlacionadas pelo teste de Spearman (α=0,05 e submetidos ao método de Discurso do Sujeito Coletivo (DSC. Os médicos assistenciais tenderam a valorizar o fator "quadro clínico e tempo de evolução", enquanto os médicos peritos tenderam a apontar "história ocupacional" na definição do diagnóstico de LER/DORT. Já para o diagnóstico de Fibromialgia, os peritos tenderam a apontar o fator "quantidade de tender points", enquanto os médicos assistenciais indicaram mais frequentemente "característica da dor". Apesar dessas discretas discrepâncias, alta correlação (r=0,85, ρ=0,01 foi identificada entre os grupos quando apontaram aspectos comuns e distintos no estabelecimento do diagnóstico para as duas síndromes. Os relatos também enfatizaram a necessidade da investigação de riscos presentes no trabalho para a definição de um diagnóstico mais preciso. CONCLUSÕES: Nesse sentido, objetivando uniformizar condutas avaliativas, preventivas e terapêuticas para médicos, fisioterapeutas e demais profissionais envolvidos no atendimento dessas síndromes, seria recomendável maior divulgação dos critérios utilizados por entidades internacionais no diagnóstico da Fibromialgia e a inclusão de treinamento para identifica

De masonería, control y otras lealtades fraternales: el rescate de Porfirio Díaz por un hermano masón

Directory of Open Access Journals (Sweden)

Guillermo de los Reyes Heredia

2015-01-01

Full Text Available En este artículo se explora el papel que jugó Porfirio Díaz dentro de la masonería y su relación con dichainstitución. Se analiza una de las historias que comprueban que Díaz logró ciertos beneficios gracias a suafiliación masónica desde antes que fuera presidente de México. Esta historia narra la manera en que Díazlogró entrar de contrabando a México con la ayuda de un hermano masón en 1876, después de su breve exilioen Nuevo Orleans a bordo del buque de vapor, “City of Havana”. En un principio se pensaba que ésta erasimplemente una leyenda más del folklore que envuelve a la masonería. Sin embargo, dos testimonios, ambosde masones que iban en el mismo barco ratifican la historia que incluso el mismo historiador de la masoneríanorteamericana, William Deslow, catalogaba como un incidente, “no verificado.”Asimismo, se describe cómo Díaz promovió la unificación de las logias del rito escocés en unainstitución que se llamó La Gran Dieta Simbólica. La razón principal por la cual Díaz promovió talunificación, como se afirma en este artículo, fue para llevar a cabo su plan de pacificación nacional. Díazsabía que tenía que obtener el control de la masonería para evitar que ésta le causara problemas para lograr elorden y progreso que caracterizó a su gobierno. Por tal motivo, el dictador siempre vigiló que ni la masonería,ni cualquier otra institución que hubiera podido tener cierta influencia en la sociedad estuvieran fuera de sucontrol.

Identifikasi Waste pada Produksi Kayu Lapis dengan Pendekatan Lean Manufacturing untuk Meningkatkan Kualitas Proses Produksi (Studi Kasus : PT Sumber Mas Indah Plywood

Directory of Open Access Journals (Sweden)

Miftahus Shomad

2017-03-01

Full Text Available This research aimed at identifying the wastes of plywood production in PT Sumber MasIndah Plywood. Results were then utilized to determine methods in reducing wastes. Theidentification of waste was carried out using lean manufacturing approach. The data werecollected from manufacturer records, study to determine processing time, as well as interviewand quisioners which were distributed to workers in each department. Big picture mapping andvalue stream mapping tools (VALSAT were then utilized to process the data. Results ofanalyses using big picture mapping showed that total production lead time was 438,8 minutes,with 235,97 minutes of them were value added activities; and 27 days of total information leadtime. Workshop waste analyses resulted in the highest waste generated during plywoodproduction process. Those were 133 waiting time (delay, 113 defect and 78 excessivetransportation. Further analyses using VALSAT showed three methods to identify the data inmore detail, namely process activity mapping (PAM, supply chain response matrix (SCRMand quality filter mapping (QFM. Results from PAM method revealed 125 activities duringproduction, consist 62 value added activities, 33 necessary but non value added activities and 30non value added activities. While results from SCRM showed the average 22,63 days of totalorder fulfillment process comprised of 4,13 days of total physical stock and 18,5 days of totallead time. QFM result showed ratio of scrap defect reject 0,4% and ratio of scrap defect UTY3,46%. In general waste in plywood production at PT Sumber Mas Indah Plywood wasgenerated from worker, material, machinery, methods and environment. One of the ways toimprove it is by applying pull system (Kanban

LA CUEVA DE LA GRIEGA (PEDRAZA, SEGOVIA, ESPAÑA EN LA ENCRUCIJADA IBÉRICA: NUEVOS ANÁLISIS DEL ARTE PARIETAL PALEOLÍTICO A TRAVÉS DEL ANÁLISIS FACTORIAL DE CORRESPONDENCIAS

Directory of Open Access Journals (Sweden)

María Soledad Corchón Rodríguez

2013-09-01

Full Text Available Este artículo presenta los nuevos resultados de los estudios en curso sobre la cueva de La Griega (Pedraza, Segovia, España. Las investigaciones en esta cavidad se han centrado en una renovación de los métodos de análisis del registro parietal: aplicación de técnicas de estudio en 3D, análisis microscópico de los trazos grabados, análisis formal utilizando herramientas estadísticas (Análisis Factorial de Correspondencias-AFC . Se discuten los resultados concernientes, particularmente, a las representacions de caballos, analizados por AFC sobre un conjunto de mas de 200 entidades que proceden de las cavidades (La Pasiega, Castillo, La Viña, Covalanas, Parpalló, Nerja, La Pileta… y dispositivos al aire libre de la Peninsula Ibérica (Siega Verde y Foz Côa. Los resultados muestran que las caracteristicas formales de los équidos de la griega son muy homogéneas y comparten también caracteristicas cantábricas y mediterráneas. Estos datos permiten establecer hipótesis acerca de la cronología de las representaciones, y las relaciones de larga distancia durante el periodo premagdaleniense.This paper presents the new results of the ongoing studies of La Griega Cave (Pedraza, Segovia, Spain. The investigations are focused in a methodological renewal of the analysis of rock art and formal analysis using statistical tools (Correspondence Factorial Analysis- CFA.The aim of this article is to discuss the results of correspondence factorial analysis focused particularly on the representation of hourses, for which a set of over 200 entities from the cavities (La Pasiega, Castillo, La Viña, Covalanas, Parpalló, Nerja, La Pileta… and from outdoor sites in the Iberian Peninsula (Siega Verde and Foz Côa have been analyzed. The results show that the formal characteristics of the Griega cave horses are very homogeneous and share also Cantabrian and Mediterranean characteristics. These data highlight the links between the segovian cave and

Design of high-power, broadband 180o pulses and mixing sequences for fast MAS solid state chemical shift correlation NMR spectroscopy

International Nuclear Information System (INIS)

Herbst, Christian; Herbst, Jirada; Kirschstein, Anika; Leppert, Joerg; Ohlenschlaeger, Oliver; Goerlach, Matthias; Ramachandran, Ramadurai

2009-01-01

An approach for the design of high-power, broadband 180 o pulses and mixing sequences for generating dipolar and scalar coupling mediated 13 C- 13 C chemical shift correlation spectra of isotopically labelled biological systems at fast magic-angle spinning frequencies without 1 H decoupling during mixing is presented. Considering RF field strengths in the range of 100-120 kHz, as typically available in MAS probes employed at high spinning speeds, and limited B 1 field inhomogeneities, the Fourier coefficients defining the phase modulation profile of the RF pulses were optimised numerically to obtain broadband inversion and refocussing pulses and mixing sequences. Experimental measurements were carried out to assess the performance characteristics of the mixing sequences reported here

Investigating sorption on iron-oxyhydroxide soil minerals by solid-state NMR spectroscopy: a 6Li MAS NMR study of adsorption and absorption on goethite

DEFF Research Database (Denmark)

Nielsen, Ulla Gro; Paik, Younkee; Julmis, Keinia

2005-01-01

High-resolution 2H MAS NMR spectra can be obtained for nanocrystalline particles of goethite (alpha-FeOOH, particle size approximately 4-10 nm) at room temperature, facilitating NMR studies of sorption under environmentally relevant conditions. Li sorption was investigated as a function of pH, th...... on the goethite surface. Even larger Li hyperfine shifts (289 ppm) were observed for Li+-exchanged goethite, which contains lithium ions in the tunnels of the goethite structure, confirming the Li assignment of the 145 ppm Li resonance to the surface sites. Udgivelsesdato: 2005-Oct-6...

"La escuadra, el compás y la lira. Poemas publicados en la prensa masónica puertorriqueña, 1883-1887"

Directory of Open Access Journals (Sweden)

Miguel A. Pereira Rivera

2013-01-01

Full Text Available El autor analizó los poemas publicados en varios periódicos masónicos puertorriqueños publicados durante losaños 1883-1887, para evaluar como éstos pudieron promover una “lectura dominante” de los principiosasociados a la modernidad en el Puerto Rico del Siglo XIX. Se presenta información sobre los periódicos,incluyendo su historial y datos biográficos de sus editores.Para este esfuerzo investigativo se utilizaron, ademásde los periódicos de la época citada, fuentes documentales primarias de laGran Logia Soberana de Libres yAceptados Masones de Puerto Rico.

A Substituição da Contribuição Patronal para o Faturamento: Efeitos Macroeconômicos, sobre a Progressividade e Distribuição de Renda no Brasil

Directory of Open Access Journals (Sweden)

Wilton Bernardino da Silva

2014-12-01

Full Text Available Na esfera Nacional, as Medidas Provisórias 563/2012, 582/2012, 601/2012 e 612/2013 propõem a substituição da alíquota previdenciária patronal do INSS por uma alíquota tributária de 1% ou 2% sobre o faturamento, esta alteração sendo feita em setores econômicos intensivos em trabalho. O presente estudo avalia impactos econômicos dessas mudanças sobre os agregados, setores e famílias na economia brasileira. Os resultados sugerem que os efeitos da substituição se devem exclusivamente à redução da carga tributária embutida na proposta, mas sem impacto relevante na redução das distorções do sistema tributário brasileiro.

PERCEPÇÃO DOS GRADUANDOS EM CIÊNCIAS CONTÁBEIS DE SALVADOR (BA SOBRE OS CONCEITOS RELEVANTES DA TEORIA DA CONTABILIDADE

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Adriano Leal Bruni

2012-06-01

Full Text Available Um domínio apropriado dos conceitos básicos da Contabilidade e uma análise das suas características são essenciais para o desenvolvimento da Teoria Contábil. O processo de tomada de decisões financeiras exige o conhecimento de valores econômicos adequados, o que se torna cada vez mais demandado pelos usuários da Contabilidade. Este trabalho, portanto, buscou aferir a compreensão de alguns termos explorados no contexto da disciplina Teoria da Contabilidade, tais como ativos, passivos, goodwill, receitas, despesas, ganhos e perdas. Examinou-se uma amostra composta por 591 alunos matriculados em cursos de Ciências Contábeis que já haviam frequentado a disciplina Teoria da Contabilidade em instituições de ensino superior localizadas na cidade de Salvador (BA. A análise dos resultados por meio de uma regressão logística indica que a relação desempenho do discente e titulação do docente é mais significativa que a relação desempenho do discente e tipo da IES, contudo, de forma geral, conceitos superficiais sobre os tópicos tratados nesse trabalho foram citados em todos os níveis. Os resultados evidenciaram, em geral, falhas na compreensão de conceitos contábeis relevantes para a formação do aluno, refletindo majoritariamente uma visão superada ou, no mínimo, conservadora. Quando comparados por tipo de instituição de ensino, os resultados indicam que estudantes de instituições públicas possuem melhor domínio dos conceitos considerados neste estudo. A compreensão melhora um pouco mais quando a titulação do docente evolui de especialista para mestre e deste para doutor.

Loģistikas pārvaldības sistēmas izstrāde, izmantojot Spring un Hibernate ietvarus

OpenAIRE

Ziļickis, Intars

2009-01-01

Kvalifikācijas darbā “Loģistikas pārvaldības sistēmas izstrāde, izmantojot Spring un Hibernate ietvarus” ir aprakstīta pogrammatūras izstrāde. Ir iekļauti programmatūras prasību un projektējumu aprakstoši dokumenti, dati par izstrādē izmantotajiem rīkiem un tehnoloģijām, kā arī aprakstīta programmatūras kvalitātes nodrošināšana, testēšana un darbietilpības aprēķins. Loģistikas pārvaldības sistēma ir paredzēta kompānijām, kas nodarbojas ar loģistikas pārvedumu izpildi, vieglākai pārve...

Quality Analysis of Ceramic Tent Product With Six Sigma Method in PT. Mas Keramik KIA

Science.gov (United States)

Suryadi, A.; Ardiansyah P., F.; Ngatilah, Y.

2018-01-01

PT. KIA Keramik Mas is a company engaged in manufacturing, which produces ceramic tiles, one of the problems faced by this company is the number of defects found, in the July - December 2015 amounted to 6,259,945 units producing tiles and discovered defects by 960 683 units with an object research is ceramic tile products, among some of the defects found several characteristics of defects that occur include rugged body, coincide, grainy, scratched, and colors distorted. The purpose of this study was to determine the quality of the product and propose improvements that reduce the number of such defects, using quality control methods that Six Sigma. Six Sigma is used to generate a defect that does not exceed 3.4 DPMO (defects per million opportunities) or zero defect which is an approach to calculate the number of defects per million possibilities. Average quality ceramic tile products during the month of July - December 2015 was on a sigma of 3.37 with DPMO of 30 586, which means that one million opportunities that exist there will be 30 586 (3,05%) the possibility that the process of making the ceramic tile defect or defects occur, so to get to the required target of Six Sigma improvement.

Kukuļņemšanas un kukuļdošanas kvalifikācijas problēmas

OpenAIRE

Brauere, Jolanta

2010-01-01

Bakalaura darba nosaukums ir „Kukuļņemšanas un kukuļdošanas kvalifikācijas problēmas”. Darba mērķis ir izpētīt normatīvos aktus, speciālo juridisko literatūru un judikatūru, nolūkā konstatēt problēmas kukuļņemšanas un kukuļdošanas kvalifikācijā. Lai sasniegtu šo mērķi, darbā tika aplūkota kukuļņemšanas un kukuļdošanas vēsturiskā attīstība, tādējādi sniedzot nelielu ieskatu par kukuļņemšanas un kukuļdošanas juridiskā pamata vēsturiskās attīstības posmiem no 19.gadsimta līdz mūsdienām. Darb...

TU-EF-204-03: Task-Based KV and MAs Optimization for Radiation Dose Reduction in CT: From FBP to Statistical Model-Based Iterative Reconstruction (MBIR)

International Nuclear Information System (INIS)

Gomez-Cardona, D; Li, K; Lubner, M G; Pickhardt, P J; Chen, G-H

2015-01-01

Purpose: The introduction of the highly nonlinear MBIR algorithm to clinical CT systems has made CNR an invalid metric for kV optimization. The purpose of this work was to develop a task-based framework to unify kV and mAs optimization for both FBP- and MBIR-based CT systems. Methods: The kV-mAs optimization was formulated as a constrained minimization problem: to select kV and mAs to minimize dose under the constraint of maintaining the detection performance as clinically prescribed. To experimentally solve this optimization problem, exhaustive measurements of detectability index (d’) for a hepatic lesion detection task were performed at 15 different mA levels and 4 kV levels using an anthropomorphic phantom. The measured d’ values were used to generate an iso-detectability map; similarly, dose levels recorded at different kV-mAs combinations were used to generate an iso-dose map. The iso-detectability map was overlaid on top of the iso-dose map so that for a prescribed detectability level d’, the optimal kV-mA can be determined from the crossing between the d’ contour and the dose contour that corresponds to the minimum dose. Results: Taking d’=16 as an example: the kV-mAs combinations on the measured iso-d’ line of MBIR are 80–150 (3.8), 100–140 (6.6), 120–150 (11.3), and 140–160 (17.2), where values in the parentheses are measured dose values. As a Result, the optimal kV was 80 and optimal mA was 150. In comparison, the optimal kV and mA for FBP were 100 and 500, which corresponded to a dose level of 24 mGy. Results of in vivo animal experiments were consistent with the phantom results. Conclusion: A new method to optimize kV and mAs selection has been developed. This method is applicable to both linear and nonlinear CT systems such as those using MBIR. Additional dose savings can be achieved by combining MBIR with this method. This work was partially supported by an NIH grant R01CA169331 and GE Healthcare. K. Li, D. Gomez-Cardona, M. G

Proposal to neutralize acid fluids from wells in the Los Humeros, Pue., geothermal field; Propuesta para la neutralizacion de fluidos acidos provenientes de pozos del campo geotermico de Los Humeros, Pue.

Energy Technology Data Exchange (ETDEWEB)

Flores Armenta, Magaly del Carmen; Ramirez Montes, Miguel; Garcia Cuevas, Juan Manuel [Comision Federal de Electricidad, Gerencia de Proyectos Geotermoelectricos, Morelia, Michoacan (Mexico)]. E-mail: magaly.flores@cfe.gob.mx

2009-07-15

comerciales. La zona alrededor de los pozos H-4, H-16 y H-29 del sector norte del campo de Los Humeros, Pue., conocido como el Colapso Central, presento en el pasado indicios de fluidos acidos agresivos, motivo por el cual varios pozos de esa zona debieron ser reparados cementando y aislando sus zonas productoras mas profundas. El pozo H-43 se perforo hace dos anos en la zona norte del campo, y aunque no esta localizado en la zona con fluidos agresivos, hay caracteristicas mineralogicas que podrian indicar la presencia de fluidos acidos. Por tanto, para la operacion comercial de este pozo se contempla la instalacion de un sistema de neutralizacion, cuyas caracteristicas generales se describen en este trabajo. Esto permitiria prevenir la corrosion que hasta el momento ha impedido la explotacion de la parte profunda del Colapso Central y coadyuvaria a un desarrollo mas rentable en este campo.

Conformational analysis of capsaicin using 13C, 15N MAS NMR, GIAO DFT and GA calculations

Science.gov (United States)

Siudem, Paweł; Paradowska, Katarzyna; Bukowicki, Jarosław

2017-10-01

Capsaicin produced by plants from genus Capsicum exerts multiple pharmacological effects and has found applications in food and pharmaceutical industry. The alkaloid was studied by a combined approach: solid-state NMR, GA conformational search and GIAO DFT methods. The 13C CPMAS NMR spectra were recorded using variable contact time and dipolar dephasing experiments. The results of cross-polarization (CP) kinetics, such as TCP values and long T1ρH (100-200 ms), indicated that the capsaicin molecule is fairly mobile, especially at the end of the aliphatic chain. The15N MAS NMR spectrum showed one narrow signal at -255 ppm. Genetic algorithm (GA) search with multi modal optimization was used to find low-energy conformations of capsaicin. Theoretical GIAO DFT calculations were performed using different basis sets to characterize five selected conformations. 13C CPMAS NMR was used as a validation method and the experimental chemical shifts were compared with those calculated for selected stable conformers. Conformational analysis suggests that the side chain can be bent or extended. A comparison of the experimental and the calculated chemical shifts indicates that solid capsaicin does not have the same structure as those established by PWXRD.

Reklāmas ietekme uz uzņēmuma tēla veidošanos integrētā mārketinga komunikācijās. Olimpiskā centra "Ventspils" piemērs

OpenAIRE

Boitmane, Līva

2008-01-01

Latvijā pēdējo gadu laikā tiek atvērti arvien jauni Olimpiskie centri, tādēļ bakalaura darba „Reklāmas ietekme uz uzņēmuma tēlu integrētā mārketinga komunikācijās. Olimpiskā centra „Ventspils” piemērs”, mērķis ir izpētīt, kā Olimpiskais centrs „Ventspils” veido savu uzņēmuma tēlu, vai strādājot pie pakalpojumu reklāmas izveides tiek mērķtiecīgi veidots Olimpiskā centra tēls jeb imidžs. Darbā sākotnēji tiek analizēta integrētā mārketinga komunikācijas teorija, aprakstīta viena no tā sastāv...

Transitions in Al Coordination during Gibbsite Crystallization Using High-Field ²⁷ Al and ²³ Na MAS NMR Spectroscopy

Energy Technology Data Exchange (ETDEWEB)

Hu, Jian Zhi [Pacific Northwest National Laboratory, Richland, Washington 99354, United States; Zhang, Xin [Pacific Northwest National Laboratory, Richland, Washington 99354, United States; Jaegers, Nicholas R. [Pacific Northwest National Laboratory, Richland, Washington 99354, United States; Washington State University, Pullman, Washington 99164, United States; Wan, Chuan [Pacific Northwest National Laboratory, Richland, Washington 99354, United States; Graham, Trent R. [Pacific Northwest National Laboratory, Richland, Washington 99354, United States; Washington State University, Pullman, Washington 99164, United States; Hu, Mary [Pacific Northwest National Laboratory, Richland, Washington 99354, United States; Pearce, Carolyn I. [Pacific Northwest National Laboratory, Richland, Washington 99354, United States; Felmy, Andrew R. [Pacific Northwest National Laboratory, Richland, Washington 99354, United States; Washington State University, Pullman, Washington 99164, United States; Clark, Sue B. [Pacific Northwest National Laboratory, Richland, Washington 99354, United States; Washington State University, Pullman, Washington 99164, United States; Rosso, Kevin M. [Pacific Northwest National Laboratory, Richland, Washington 99354, United States

2017-11-30

Mechanisms of nucleation and growth of Al hydroxides such as gibbsite from aqueous solution, particularly in highly alkaline conditions, remain poorly understood. In this work, quantitative 27Al and 22Na MAS NMR experiments were conducted on solid samples extracted from the crystallization of gibbsite from an amorphous aluminum hydroxide gel precursor. The use of high magnetic field and fast sample spinning allowed transitional tetrahedral (AlT) and pentahedral (AlP) aluminum species to be observed along with the octahedral aluminum (AlO) that dominates the gibbsite product. Low-coordinated Al species could be detected at concentrations as low as 0.1% of the total Al sites. It is established that (a) AlT and AlP coexist on the surface of growing gibbsites even with a combined percentage over the total Al sites of less than 1%; (b) Different synthesis methods generate gibbsite with varying amounts of low-coordinated Al; (c) the amorphous gel precursor contains a significant amount of low-coordinated Al sites with AO: AlP: AlT ratios of approximately 4:2:1; (d) upon hydration, the external, low-coordinated Al sites become six-fold coordinated by interacting with the oxygen in H2O and the 27Al MAS NMR peak position shifts to that for the AlO sites; (e) gibbsite with increased long range order is synthesized over longer times by gradually incorporating residual AlP and AlT sites into octahedrally-coordinated AlO sites; (f) trace Na is predominantly a surface species on gibbsite particles. These findings provide a basis for understanding the gibbsite crystallization mechanism, along with a general means of characterizing gibbsite surface properties that are of equal importance for understanding related processes such as dissolution behavior.

Experimental investigation of drying characteristics of cornelian cherry fruits ( Cornus mas L.)

Science.gov (United States)

Ozgen, Filiz

2015-03-01

Major target of present paper is to investigate the drying kinetics of cornelian cherry fruits ( Cornus mas L.) in a convective dryer, by varying the temperature and the velocity of drying air. Freshly harvested fruits are dried at drying air temperature of 35, 45 and 55 °C. The considered drying air velocities are V air = 1 and 1.5 m/s for each temperature. The required drying time is determined by taking into consideration the moisture ratio measurements. When the moisture ratio reaches up to 10 % at the selected drying air temperature, then the time is determined ( t = 40-67 h). The moisture ratio, fruit temperature and energy requirement are presented as the functions of drying time. The lowest drying time (40 h) is obtained when the air temperature is 55 °C and air velocity is 1.5 m/s. The highest drying time (67 h) is found under the conditions of 35 °C temperature and 1 m/s velocity. Both the drying air temperature and the air velocity significantly affect the required energy for drying system. The minimum amount of required energy is found as 51.12 kWh, at 55 °C and 1 m/s, whilst the maximum energy requirement is 106.7 kWh, at 35 °C and 1.5 m/s. It is also found that, air temperature significantly influences the total drying time. Moreover, the energy consumption is decreasing with increasing air temperature. The effects of three parameters (air temperature, air velocity and drying time) on drying characteristics have also been analysed by means of analysis of variance method to show the effecting levels. The experimental results have a good agreement with the predicted ones.

Siber Kimliklerin Kişiliğe Yansıması: Proteus Etki (Tanımı, Nedenleri Ve Önlenmesi)

OpenAIRE

TANHAN, Fuat; ALAV, Özlem

2015-01-01

Hayatın vazgeçilmez bir parçası haline gelmiş olan teknoloji ve internet bireyi ve toplumu farklı yönlerden etkisi altına alabilmektedir. Teknoloji ve internet sanal çevre diye bilinen yeni bir sosyal dünyanın oluşmasına neden olmuştur. Sanal dünya, sınırları neredeyse çizilemeyen bir çevre sunmakta ve bu çevre içinde bulunan bireyleri, kurumları etkilemekte ve dönüştürmektedir.  Söz konusu etki, kimi yönlerden olumlu, kimi yönlerden ise olumsuzlaşmaktadır. Sanal dünyadaki ilişkiler, kimlikle...

Current status of the Colombia power plants emissions; Estado de las emisiones en las centrales termoelectricas de Colombia

Energy Technology Data Exchange (ETDEWEB)

Quijano Hurtado, Ricardo [Ministerio de Minas y Energia, (Colombia)

1997-12-31

The characteristics of the Colombian thermal electric resource and the environmental characteristics of the region such as: the climate where the power plants are located; the Geology and the type of soils; the technology employed for the atmospheric emissions control; the water consumption in the region; the systems for ash extraction an social-economical aspects are described [Espanol] Se describen las caracteristicas del parque termico de Colombia y las caracteristicas ambientales de la region como son: el clima donde estan localizadas las plantas; la geologia y los tipos de suelos; la tecnologia utilizada en el control de las emisiones atmosfericas; el consumo de agua en la region; los sistemas de extraccion de cenizas y aspectos socioeconomicos

Current status of the Colombia power plants emissions; Estado de las emisiones en las centrales termoelectricas de Colombia

Energy Technology Data Exchange (ETDEWEB)

Quijano Hurtado, Ricardo [Ministerio de Minas y Energia, (Colombia)

1996-12-31

The characteristics of the Colombian thermal electric resource and the environmental characteristics of the region such as: the climate where the power plants are located; the Geology and the type of soils; the technology employed for the atmospheric emissions control; the water consumption in the region; the systems for ash extraction an social-economical aspects are described [Espanol] Se describen las caracteristicas del parque termico de Colombia y las caracteristicas ambientales de la region como son: el clima donde estan localizadas las plantas; la geologia y los tipos de suelos; la tecnologia utilizada en el control de las emisiones atmosfericas; el consumo de agua en la region; los sistemas de extraccion de cenizas y aspectos socioeconomicos

Structure determination of uniformly {sup 13}C, {sup 15}N labeled protein using qualitative distance restraints from MAS solid-state {sup 13}C-NMR observed paramagnetic relaxation enhancement

Energy Technology Data Exchange (ETDEWEB)

Tamaki, Hajime [Hokkaido University, Graduate School of Life Science (Japan); Egawa, Ayako [Osaka University, Institute for Protein Research (Japan); Kido, Kouki [Hokkaido University, Graduate School of Life Science (Japan); Kameda, Tomoshi [National Institute of Advanced Industrial Science and Technology, Biotechnology Research Institute for Drug Discovery (Japan); Kamiya, Masakatsu; Kikukawa, Takashi; Aizawa, Tomoyasu [Hokkaido University, Faculty of Advanced Life Science (Japan); Fujiwara, Toshimichi [Osaka University, Institute for Protein Research (Japan); Demura, Makoto, E-mail: demura@sci.hokudai.ac.jp [Hokkaido University, Faculty of Advanced Life Science (Japan)

2016-01-15

Magic angle spinning (MAS) solid-state nuclear magnetic resonance (NMR) is a powerful method for structure determination of insoluble biomolecules. However, structure determination by MAS solid-state NMR remains challenging because it is difficult to obtain a sufficient amount of distance restraints owing to spectral complexity. Collection of distance restraints from paramagnetic relaxation enhancement (PRE) is a promising approach to alleviate this barrier. However, the precision of distance restraints provided by PRE is limited in solid-state NMR because of incomplete averaged interactions and intermolecular PREs. In this report, the backbone structure of the B1 domain of streptococcal protein G (GB1) has been successfully determined by combining the CS-Rosetta protocol and qualitative PRE restraints. The derived structure has a Cα RMSD of 1.49 Å relative to the X-ray structure. It is noteworthy that our protocol can determine the correct structure from only three cysteine-EDTA-Mn{sup 2+} mutants because this number of PRE sites is insufficient when using a conventional structure calculation method based on restrained molecular dynamics and simulated annealing. This study shows that qualitative PRE restraints can be employed effectively for protein structure determination from a limited conformational sampling space using a protein fragment library.

Relevant factors for tacit knowledge transfer within organizations: an exploratory study Fatores relevantes à transferência de conhecimento tácito em organizações: um estudo exploratório

Directory of Open Access Journals (Sweden)

Bernardo Lemos

2012-01-01

Full Text Available Knowledge and management of such knowledge have been studied for some time now in the field of Management. However, in the 1990s, with the growth in the economy based on intangible assets, companies needed more than an unstructured approach to corporate knowledge management to succeed in this new competitive environment. Therefore, this article aims to identify, in an exploratory way, the relevant factors for tacit knowledge transfer within a major Brazilian oil company trough a case study. This study reviews the literature concerning tacit knowledge transfer within organizations, and using a quantitative approach based on exploratory factorial analysis, it collects facts in order to identify the relevant factors for tacit knowledge transfer within the organization under study. It can be said that idiosyncratic factors, the knowledge management strategy adopted by the company, and its organizational structure are the critical elements for the success of tacit knowledge transfer within the organization under analysis. Finally, three propositions arising from the results obtained are then consolidated and presented in order that they may be tested in a future explanatory study and the research limitation are unveiled.O conhecimento tem sido estudado há bastante tempo dentro da área de Gestão. Entretanto, a partir da década de 1990, com o crescimento da economia baseada em ativos intangíveis, as empresas passaram a preocupar-se com o conhecimento existente em suas organizações, assim como com o seu gerenciamento. Assim, o objetivo deste trabalho é identificar, exploratoriamente, por meio de um estudo de caso, quais são os fatores relevantes à transferência de conhecimento tácito em uma grande empresa petrolífera brasileira. A presente pesquisa analisa parte relevante da bibliografia acerca da transferência de conhecimento tácito em organiza��ões e, usando abordagem quantitativa baseada em análise fatorial exploratória, coleta

Noliktavu vadības sistēmas (WMS) ieviešana un ieviešanas rezultātu analīze loģistikas uzņēmumā AS ,,Dominante Loģistikas Sistēma

OpenAIRE

Morozovs, Gļebs

2010-01-01

Darbā „Noliktavu vadības sistēmas (WMS) ieviešana un ieviešanas rezultātu analīze loģistikas uzņēmumā AS „Dominante Loģistikas Sistēma„ tiek pētīta noliktavu vadības sistēmas ievešanas ietekme uz loģistikas uzņēmumu. Darbā izpētīts loģistikas saturs un funkcionālās sfēra, aplūkoti noliktavu un transporta loģistika pamatprincipi un mijiedarbība, analizētas loģistikas attīstības tendences un loma Latvijas tautsaimniecība. Izpētīti noliktavu un transporta loģistikas instrumenti, raksturota infor...

Solid state NMR of proteins at high MAS frequencies: symmetry-based mixing and simultaneous acquisition of chemical shift correlation spectra

International Nuclear Information System (INIS)

Bellstedt, Peter; Herbst, Christian; Häfner, Sabine; Leppert, Jörg; Görlach, Matthias; Ramachandran, Ramadurai

2012-01-01

We have carried out chemical shift correlation experiments with symmetry-based mixing sequences at high MAS frequencies and examined different strategies to simultaneously acquire 3D correlation spectra that are commonly required in the structural studies of proteins. The potential of numerically optimised symmetry-based mixing sequences and the simultaneous recording of chemical shift correlation spectra such as: 3D NCAC and 3D NHH with dual receivers, 3D NC′C and 3D C′NCA with sequential 13 C acquisitions, 3D NHH and 3D NC′H with sequential 1 H acquisitions and 3D CANH and 3D C’NH with broadband 13 C– 15 N mixing are demonstrated using microcrystalline samples of the β1 immunoglobulin binding domain of protein G (GB1) and the chicken α-spectrin SH3 domain.

A rheological model for glassforming silicate melts in the systems CAS, MAS, MCAS

International Nuclear Information System (INIS)

Giordano, Daniele; Russell, J K

2007-01-01

Viscosity is the single most important property governing the efficacy, rates, and nature of melt transport. Viscosity is intimately related to the structure and thermodynamics properties of the melts and is a reflection of the mechanisms of single atoms slipping over potential energy barriers. The ability to predict melt viscosity accurately is, therefore, of critical importance for gaining new insights into the structure of silicate melts. Simple composition melts, having a reduced number of components, offer an advantage for understanding the relationships between the chemical composition, structural organization and the rheological properties of a melt. Here we have compiled a large database of ∼970 experimental measurements of melt viscosity for the simple chemical systems MAS, CAS and MCAS. These data are used to create a single chemical model for predicting the non-Arrhenian viscosity as a function of temperature (T) and composition (X) across the entire MCAS system. The T-dependence of viscosity is accounted for by the three parameters in each of the model functions: (i) Vogel-Fulcher-Tamman (VFT); (ii) Adam-Gibbs (AG); and (iii) Avramov (AV). The literature shows that, in these systems, viscosity converges to a common value of the pre-exponential factors (A) that can be assumed to be independent of composition. The other two adjustable parameters in each equation are expanded to capture the effects of composition. The resulting models are continuous across T-X space. The values and implications of the optimal parameters returned for each model are compared and discussed. A similar approach is likely to be applicable to a variety of non-silicate multicomponent glassforming systems

Solid state CP/MAS 13C n.m.r. analysis of particle size and density fractions of soil incubated with uniformly labelled 13C-glucose

International Nuclear Information System (INIS)

Baldock, J.A.; Oades, J.M.

1990-01-01

A soil incubated for 34 days in the absence (control) and presence (treated) of uniformly labelled 13 C-glucose was dispersed using an ultrasonic probe and fractionated by sedimentation in water and a polytungstate solution of density 2.0 Mg m -3 . Solid state CP/MAS 13 C n.m.r. (cross polarization/magic angle spinning 13 C nuclear magnetic resonance) spectroscopy was used to characterize the chemical structure of the native soil organic carbon and the residual substrate carbon in the fractions of the control and treated soils. To obtain quantitative results it was essential to determine the spin lattice relaxation time in a rotating frame of the individual carbon types in the spectra as the relaxation behaviour of the native organic material in the clay fraction was different from that of the residual substrate carbon. The residual substrate carbon was found to accumulate in predominantly alkyl and O-alkyl structures in both fractions. However, significant amounts of acetal and carboxyl carbon were also observed in the clay fraction. Little if any aromatic or phenolic carbon was synthesized by the soil microorganisms utilizing substrate carbon. Dipolar dephasing CP/MAS 13 C n.m.r. experiments were also performed and allowed the proportion of each type of carbon which was protonated and nonprotonated to be estimated. Essentially all of the O-alkyl and acetal carbon, 25-40% of the aromatic carbon and 66-80% of the alkyl carbon was protonated in the fractions isolated from the treated soil. 24 refs., 4 figs., 2 tabs

Microwave assisted saponification (MAS) followed by on-line liquid chromatography (LC)-gas chromatography (GC) for high-throughput and high-sensitivity determination of mineral oil in different cereal-based foodstuffs.

Science.gov (United States)

Moret, Sabrina; Scolaro, Marianna; Barp, Laura; Purcaro, Giorgia; Conte, Lanfranco S

2016-04-01

A high throughput, high-sensitivity procedure, involving simultaneous microwave-assisted extraction (MAS) and unsaponifiable extraction, followed by on-line liquid chromatography (LC)-gas chromatography (GC), has been optimised for rapid and efficient extraction and analytical determination of mineral oil saturated hydrocarbons (MOSH) and mineral oil aromatic hydrocarbons (MOAH) in cereal-based products of different composition. MAS has the advantage of eliminating fat before LC-GC analysis, allowing an increase in the amount of sample extract injected, and hence in sensitivity. The proposed method gave practically quantitative recoveries and good repeatability. Among the different cereal-based products analysed (dry semolina and egg pasta, bread, biscuits, and cakes), egg pasta packed in direct contact with recycled paperboard had on average the highest total MOSH level (15.9 mg kg(-1)), followed by cakes (10.4 mg kg(-1)) and bread (7.5 mg kg(-1)). About 50% of the pasta and bread samples and 20% of the biscuits and cake samples had detectable MOAH amounts. The highest concentrations were found in an egg pasta in direct contact with recycled paperboard (3.6 mg kg(-1)) and in a milk bread (3.6 mg kg(-1)). Copyright © 2015 Elsevier Ltd. All rights reserved.

Implantación de la moneda única europea en aplicación del Tratado de Maastricht y la crisis del sistema monetario europeo durante el periodo de convergencia económica : factores relevantes para la estabilidad cambiaria y análisis positivo del proceso de uni

OpenAIRE

Gomez Ortiz, Miguel Ángel

1993-01-01

Se analizan las variables relevantes del proceso de unión monetaria así como el funcionamiento del Sistema Monetario Europeo y el contenido del Tratado de Maastricht. Con esta base se plantea la preferencia de una moneda única como el mecanismo más idóneo para lograr optimizar el proceso de unión económica y monetaria de la Comunidad Europea, realizándose un análisis histórico e institucional tanto de la evolución monetario-financiera de la Comunidad como del mecanismo de cambios e intervenci...

Cleaning of Livefront Electrical Switchgear Using Carbon Dioxide Pellets at Navy Installations

Science.gov (United States)

1998-05-01

MÄNTENIMIENTO - REPUESTOS ADX 600/- CARATTERISTICHE - CHARACTERISTICS - CARACTERISTIQUES - MERKMALE - CARACTERISTICAS Bicilindrico - Ciclo Diesel 4...Fliehkraftregler - Drehzahlregler - Kurbelgenhäuse aus Aluminium- Druckguss - Zylinder aus Perlitguss - Oelbadluftfilter. Bicilindrico - Ciclo Diesel de

Structural investigations of borosilicate glasses containing MoO{sub 3} by MAS NMR and Raman spectroscopies

Energy Technology Data Exchange (ETDEWEB)

Caurant, D., E-mail: daniel-caurant@enscp.f [Laboratoire de Chimie de la Matiere Condensee de Paris, UMR-CNRS 7574, Ecole Nationale Superieure de Chimie de Paris (ENSCP, ParisTech), 11 rue Pierre et Marie Curie, 75231 Paris (France); Majerus, O.; Fadel, E.; Quintas, A. [Laboratoire de Chimie de la Matiere Condensee de Paris, UMR-CNRS 7574, Ecole Nationale Superieure de Chimie de Paris (ENSCP, ParisTech), 11 rue Pierre et Marie Curie, 75231 Paris (France); Gervais, C. [Laboratoire de Chimie de la Matiere Condensee de Paris, UMR-CNRS 7574, Universite Pierre et Marie Curie, 75252 Paris (France); Charpentier, T. [CEA, IRAMIS, Service Interdisciplinaire sur les Systemes Moleculaires et Materiaux, CEA Saclay, 91191 Gif-sur-Yvette (France); Neuville, D. [Physique des Mineraux et des Magmas, UMR-CNRS 7047, Institut de Physique du Globe, place Jussieu, 75252 Paris (France)

2010-01-01

High molybdenum concentration in glass compositions may lead to alkali and alkaline-earth molybdates crystallization during melt cooling that must be controlled particularly during the preparation of highly radioactive nuclear glassy waste forms. To understand the effect of molybdenum addition on the structure of a simplified nuclear glass and to know how composition changes can affect molybdates crystallization tendency, the structure of two glass series belonging to the SiO{sub 2}-B{sub 2}O{sub 3}-Na{sub 2}O-CaO-MoO{sub 3} system was studied by {sup 29}Si, {sup 11}B, {sup 23}Na MAS NMR and Raman spectroscopies by increasing MoO{sub 3} or B{sub 2}O{sub 3} concentrations. Increasing MoO{sub 3} amount induced an increase of the silicate network reticulation but no significant effect was observed on the proportion of BO{sub 4}{sup -} units and on the distribution of Na{sup +} cations in glass structure. By increasing B{sub 2}O{sub 3} concentration, a strong evolution of the distribution of Na{sup +} cations was observed that could explain the evolution of the nature of molybdate crystals (CaMoO{sub 4} or Na{sub 2}MoO{sub 4}) formed during melt cooling.

Pour le plaisir de la chose : analyse de contenu des conceptions et des usages du Kâmasûtra dans l'Occident contemporain

OpenAIRE

Robidas, Josiane

2010-01-01

Ce mémoire a pour but de retracer comment le Kāmasūtra, traité classique hindou sur l'art de vivre et d'aimer, est présenté et véhiculé dans l'Occident depuis sa première traduction, tant pour son interprétation, sa diffusion et sa réception que pour ce qu'il permet comme regards sur les représentations des sexualités occidentales. L'analyse de contenu a été faite à partir d'un corpus très hétérogène, contenant à la fois des traductions, des ouvrages scientifiques (qui permettent notamment la...

Contabilidade: aspectos relevantes da epopéia de sua evolução

Directory of Open Access Journals (Sweden)

Sérgio de Iudícibus

2005-08-01

Full Text Available Trata o presente ensaio, como objetivo principal, de aspectos relevantes da epopéia da evolução da Contabilidade, através das várias fases históricas de seu desenvolvimento, desde o estado de simples método de escrituração baseado nas partidas dobradas até sua maturação como ciência social aplicada de forte fundo econômico. Ao longo do trabalho são analisados os vários enfoques, abordagens e teorias, bem como circunstâncias históricas e outras que possam explicar a Contabilidade enquanto ciência genuinamente social. Na interpretação mais atualizada dessa disciplina, a cientificidade contábil deve ser procurada, preferencialmente, numa série de características como, por exemplo: no entendimento e mensuração aplicados aos elementos do patrimônio; na preponderância do valor econômico em lugar de simples custos ou preços; no caráter preditivo das demonstrações contábeis; na introdução do fator risco e do conceito do valor do dinheiro no tempo nas avaliações contábeis, bem como na consideração de custos imputados e de oportunidade etc. A Contabilidade pontifica pela observação das características anteriormente vistas e pela incorporação, em seu arcabouço conceitual, da premissa da prevalência da essência sobre a forma, no campo do conhecimento social aplicado, de natureza econômico-financeira, com ramificações nas áreas de produtividade, ambiental e social e com evidentes conotações quantitativas quanto à sua mecânica patrimonial. É claro que, para efeito de pesquisa e para realçar certas dimensões, a Contabilidade pode ser estudada sob as mais variadas ênfases, como a ética, a macroeconômica, a institucional e social, a comportamental, a sistêmica e a histórica, entre outras, só que a Contabilidade é muito mais que qualquer dessas suas abordagens individualmente tomadas. No fundo, um dos objetivos deste trabalho é, também, subsidiariamente, o de ajudar a responder, pelo menos em

Solid state NMR of proteins at high MAS frequencies: symmetry-based mixing and simultaneous acquisition of chemical shift correlation spectra

Energy Technology Data Exchange (ETDEWEB)

Bellstedt, Peter [Fritz Lipmann Institute, Biomolecular NMR spectroscopy, Leibniz Institute for Age Research (Germany); Herbst, Christian [Ubon Ratchathani University, Department of Physics, Faculty of Science (Thailand); Haefner, Sabine; Leppert, Joerg; Goerlach, Matthias; Ramachandran, Ramadurai, E-mail: raman@fli-leibniz.de [Fritz Lipmann Institute, Biomolecular NMR spectroscopy, Leibniz Institute for Age Research (Germany)

2012-12-15

We have carried out chemical shift correlation experiments with symmetry-based mixing sequences at high MAS frequencies and examined different strategies to simultaneously acquire 3D correlation spectra that are commonly required in the structural studies of proteins. The potential of numerically optimised symmetry-based mixing sequences and the simultaneous recording of chemical shift correlation spectra such as: 3D NCAC and 3D NHH with dual receivers, 3D NC Prime C and 3D C Prime NCA with sequential {sup 13}C acquisitions, 3D NHH and 3D NC Prime H with sequential {sup 1}H acquisitions and 3D CANH and 3D C'NH with broadband {sup 13}C-{sup 15}N mixing are demonstrated using microcrystalline samples of the {beta}1 immunoglobulin binding domain of protein G (GB1) and the chicken {alpha}-spectrin SH3 domain.

Experimental study on AR fiberglass connectors for bridges made of composite materials

Directory of Open Access Journals (Sweden)

Tolosana, N.

2006-06-01

Full Text Available One highly relevant aspect in composite material bridgedesing is the study of the shear connectors to be used.Composite material bridges most commonly comprise acomposite deck resting on steel or reinforced concrete girders.This article analyzes the connectors most frequentlyused in such bridges.It also reviews the connectors used in the King StormwaterChannel Bridge, whose fibreglass deck is supported bygirders made of concrete-filled carbon fibre girders.The paper advances proposals for several types of connectorsand discusses the results of push-out test run ona number of prototypes with different geometries.The results are analyzed to identify the optimum model forthe “Autovia del Cantabrico” Overpass, with its 46-m span,carbon fibre girders and AR glass shear connectors.Un aspecto relevante dentro del proyecto de un puenterealizado en materiales compuestos es el estudio de losconectores. El caso mas frecuente de puente en materialescompuestos es aquel que presenta un tablero de materialescompuestos soportado por vigas metalicas o de hormigonarmado. En este trabajo se analizaran los tipos deconectores mas utilizados en este tipo de puentesSe analizaran tambien los conectores utilizados en elKing Stormwater Channel Bridge, donde ademas deltablero en fibra de vidrio, se fabricaron las vigas en fibrasde carbono rellenas de hormigon.En este articulo se propondran varios tipos de conectoresy se presentaran los resultados experimentales correspondientesal ensayo de “push-out” de varios prototipos condiferentes geometrias.Tras evaluar los resultados, se determinara el mas idoneopara su implantacion en el Paso Superior de la Autovia delCantabrico, de 46 metros de luz y que presenta las vigasen fibra de carbono y los conectores de vidrio AR.

BN interphase in composite materials with nicalon Si-C-O fibers and with vitro ceramic matrix of MAS type; L`interphase BN dans les materiaux composites a fibres Si-C-O nicalon et a matrice vitroceramique de type MAS

Energy Technology Data Exchange (ETDEWEB)

Ricca, N

1994-03-14

BN has been suggested as an interphase in silica-based glass-ceramic matrix composites with a view to use these materials in oxidizing atmospheres at medium or high temperatures. The matrix had a boron-doped MAS (MgO-Al{sub 2}O{sub 3}-SiO{sub 2}) composition and was prepared from an hydrosol precursor. Pseudo-ID composites were prepared according to a sol impregnations/calcination/hot-pressing route. Chemical and microstructural characterizations of the fiber/matrix interfacial area were conducted by mean of TEM/EELS and AES analyses. The efficiency of BN as a coupling interphase for this particular composite system was successfully demonstrated through tensile tests performed on either as-processed or aged specimens (100 hours at 1000 deg C in air or under argon). In addition, composites maintained in air at 600 deg C, 800 deg C and 900 deg C while simultaneously loaded did not fail after 150 hours or more. Thus, a BN interphase appeared to be compatible with an oxidizing environment (i.e. the oxide matrix and/or air from 600 to 1000 deg C) and should therefore successfully replace the usual carbon interphase at least for use at medium temperatures. (author)

13C CP MAS NMR and GIAO-CHF/DFT calculations of flavonoids: Morin, kaempferol, tricin, genistein, formononetin and 3,7-dihydroxyflavone

Science.gov (United States)

Zielińska, Agnieszka; Paradowska, Katarzyna; Jakowski, Jacek; Wawer, Iwona

2008-02-01

13C CP MAS NMR spectra of the flavonoids: morin, kaempferol, 3,7-dihydroxyflavone, tricin and isoflavones: genistein and formononetin were recorded to characterize solid-state conformations. Intramolecular hydrogen bonds forming five-, six- and seven-membered rings are present in the two morin molecules in the crystals - their 13C resonances have been assigned with the aid of the calculated shielding constants. Linear relationships between the calculated shielding constants σDFT (ppm) and chemical shifts ( δCPMAS, ppm) were obtained for all studied compounds. Higher correlation coefficients suggest that the conformation with "clockwise" orientation of both OH groups is more probable in the solid 3,7-dihydroxyflavone, whereas in the solid formononetin the OH and OCH 3 substituents are directed "anticlockwise". The barrier to the rotation of phenyl ring B decreases in the order: morin (2'-OH, 3-OH) > kaempferol (3-OH) > tricin.

"Análisis de la implementación del impuesto a la renta unico del sector bananero en el sistema tributario ecuatoriano como herramienta mas efectiva de recaudación camparada con sistemas tributarios y su admnistración en otros países"

OpenAIRE

Espol; Alvarado Zuñiga, Marlin Manuel

2016-01-01

El sector bananero es uno de los principales rubros de la economía nacional, debido a que el Ecuador es el primer exportador mundial de banano, por este motivo el presente estudio relevante, cuyo objetivo fue analizar las ventajas del impuesto único del sector bananero implementado en el sistema tributario ecuatoriano, para verificar su comportamiento recaudatorio durante el periodo 2008-2015, para establecer una comparación con dos países latinoamericanos (Guatemala y Costa Rica), realizando...

High, but not low, exercise volume shifts the balance of renin-angiotensin system toward ACE2/Mas receptor axis in skeletal muscle in obese rats.

Science.gov (United States)

Frantz, Eliete Dalla Corte; Giori, Isabele Gomes; Machado, Marcus Vinícius; Magliano, D'Angelo Carlo; Freitas, Fernanda Marques; Andrade, Mariana Sodré Boêta; Vieira, Aline Bomfim; Nóbrega, Antonio Claudio Lucas; Tibiriçá, Eduardo

2017-10-01

Metabolic syndrome is a cluster of metabolic risk factors that is linked to central obesity, elevated blood pressure, insulin resistance (IR), and dyslipidemia, where the renin-angiotensin system (RAS) may provide a link among them. This study aimed to evaluate volume exercise effects comparing low vs. high volume of chronic aerobic exercise on RAS axes in skeletal muscle in a diet-induced obesity (DIO) rat model. For this, male Wistar-Kyoto rats were fed a standard chow (SC) diet or a high-fat (HF) diet for 32 wk. Animals receiving the HF diet were randomly divided into low exercise volume (LEV, 150 min/wk) and high exercise volume (HEV, 300 min/wk) at the 20th week. After 12 wk of aerobic treadmill training, the body mass and composition, blood pressure, glucose and lipid metabolism, RAS axes, insulin signaling, and inflammatory pathway were performed. HEV slowed the body mass gain, reduced intra-abdominal fat pad and leptin levels, improved total and peripheral body composition and inflammatory cytokine, reduced angiotensin II type 1 receptor expression, and increased Mas receptor protein expression compared with the HF animals. Sedentary groups (SC and HF) presented lower time to exhaustion and maximal velocity compared with the LEV and HEV groups. Both exercise training groups showed reduced resting systolic blood pressure and heart rate, improved glucose tolerance, IR, insulin signaling, and lipid profile. We conclude that the HEV, but not LEV, shifted the balance of RAS toward the ACE2/Mas receptor axis in skeletal muscle, presenting protective effects against the DIO model. Copyright © 2017 the American Physiological Society.

El sueño de Venecia o el guiño de los clásicos en la narrativa de Paloma Díaz-Mas

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Neus Samblancat

2010-06-01

Full Text Available Su artículo propone que la concepción de la obra de Paloma Díaz-Mas, El sueño de Venecia, como palimpsesto literario nos conduce a un análisis intertextual donde cada capítulo de la novela nos remite a un género y a unas voces de época. Los clásicos, como el resto de la producción narrativa de la autora, guiñan el ojo a lo largo de una obra que plantea una reflexión sobre la fragilidad de la razón y de la humana Memoria a la hora de conocer la Historia y de explicar una historia.

1904-1905 Rus-Japon Savaşı’nın Japon Manga kitaplarına yansıması

OpenAIRE

DAVARCI, Yasemin

2015-01-01

      Bu çalışmada, 1904-1905 Rus-Japon Savaşının, Japon manga kitaplarına yansıması ele alınmıştır. Japonya’nın Rusya gibi büyük bir gücü yenerek dünya sahnesinde önemli güçler arasına girmesinde dönüm noktalarından biri olan bu savaşın, Japon toplumuna mangalar aracılığı ile nasıl yansıtıldığı incelenmiştir. Japon manga sanatçılarının Rus-Japon Savaşına bakış açılarının da görülebileceği bu çalışmada; İngilizce, Japonca ve Türkçe akademik kitap v...

Kayseri İlinin Gastronomi Turizmine Yönelik Bir SWOT Analizi Çalışması

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Doç. Dr. Taşkın DENİZ

2017-09-01

Full Text Available Kayseri ili tarihi, kültürel ve doğal güzellikleri ile yüksek bir turizm potansiyeline sahiptir. Binlerce yıllık geçmişe sahip bir yerleşim merkezi olan Kayseri, farklı özelliklere sahip çok sayıda kültüre ev sahipliği yapması sebebi ile adeta bir kültür beşiği durumundadır. Söz konusu kültürel zenginliğin yansıması Kayseri mutfağında ve geleneksel lezzetlerinde de kendisini göstermektedir. Bu araştırmada literatür araştırması kapsamında Kayseri ilinin SWOT analizi ve Kayseri mutfağının gastronomi ürünleri açısından bir değerlendirilmesi yapılmış, Kayseri ilin gastronomi turizmi potansiyeli hakkında görüşler ortaya konmuştur. Elde edilen sonuçlara göre, Kayserinin rakipleri arasında rekabet avantajı kazanmak, marka haline gelmek ve yerel ekonomiye katkıda bulunmak için gastronomi turizminden elde ettiği payı arttırması gerektiği tespit edilmiştir.

Healthcare benefits linked with Below Poverty Line registration in India: Observations from Maharashtra Anaemia Study (MAS).

Science.gov (United States)

Ahankari, Anand; Fogarty, Andrew; Tata, Laila; Myles, Puja

2017-01-01

A 2015 Lancet paper by Patel et al. on healthcare access in India comprehensively discussed national health programmes where some benefits are linked with the country's Below Poverty Line (BPL) registration scheme. BPL registration aims to support poor families by providing free/subsidised healthcare. Technical issues in obtaining BPL registration by poor families have been previously reported in the Indian literature; however there are no data on family assets of BPL registrants. Here, we provide evidence of family-level assets among BPL registration holders (and non-BPL households) using original research data from the Maharashtra Anaemia Study (MAS). Social and health data from 287 pregnant women and 891 adolescent girls (representing 1178 family households) across 34 villages in Maharashtra state, India, were analysed. Several assets were shown to be similarly distributed between BPL and non-BPL households; a large proportion of families who would probably be eligible were not registered, whereas BPL-registered families often had significant assets that should not make them eligible. This is likely to be the first published evidence where asset distribution such as agricultural land, housing structures and livestock are compared between BPL and non-BPL households in a rural population. These findings may help planning BPL administration to allocate health benefits equitably, which is an integral part of national health programmes.

Characterization of cornelian cherry (Cornus mas L. genotypes - genetic resources for food production in Czech Republic

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Sochor Jiri

2014-01-01

Full Text Available The aim of the study was to determine and compare both technological properties and polyphenol content in fruits of eight cornellian cherry (Cornus mas L. cultivars from Czech Republic. The fruits of cultivar ´Vydubeckij´ had the highest dry matter (17.4% and soluble solid (15.8% content among searched cultivars. The highest crude protein and phosphorus values were determined in the fruits of the ´Titus´ cultivar as 10.9 g of crude protein and 435 mg of phosphorus for per kg fresh weight (FW base. The ´Elegantnyj´ and ´Vydubeckij´ cultivars are found to be more suitable for canning industry. The fruits of the ´Vydubeckij´ cultivar contained 10.8 g of pectin and 22.4 g of citric acid per kg fresh weight base, and could be important for technological use because of their excellent gelling ability. ´Devin´,´Vydubeckij´ and ´Titus´ cultivars had the most valuable source of chlorogenic acid (135.6, 110.9 and 115.1 mg per 100 g FW, respectively and quercetin (24.9, 25.2 and 24.2 mg per 100 g FW, respectively. This work should contribute to the popularization of this fruit specie as a valuable source of technological parameters for human nutrition and the canning industry.

Structure of Selected Derivates of p-Hydroxy Cynamonic Acid According to 13C CP MAS NMR and DFT Calculation

International Nuclear Information System (INIS)

Pisklak, D.M.; Wawer, I.; Tkaczyk, M.

2005-01-01

Derivatives of p-hydroxy cynamonic acid are widely occurring in fruits, vegetables, tea and coffee. They exhibit strong antioxidant activity due to the presence of phenolic group. Epidemiological, biological and biochemical data support health beneficial role of this group of compounds and anticarcinogenic, antimutagenic and antiinflamatory effects have been reported. The most common caffeic acid contributes significantly to the total polyphenol intake and has been suggested to play a role in the apparent association between the regular consumption of polyphenol-rich food and beverages, and the prevetion of inflammatory and proliferative diseases. 13 C MAS NMR spectra were recorded on a BRUKER DSX 400 spectrometer at 400,13. Powder samples were spun in a 4 mm rotor at 10 kHz ( 13 C). Signals were assigned:- By comparison with solution spectra; - Using dipolar dephasing and variable contact time experiments; - Confirmed by DFT calculations of shielding constants. The differences in chemical shifts between solution and solid state spectra are due to the formation of intramolecular and intermolecular hydrogen bonds, including C-OH...OC within cyclic dimers. (author)

PERCEPCIÓN DE LOS GRADUANDOS EN CIENCIAS CONTABLES DE SALVADOR (BA SOBRE LOS CONCEPTOS RELEVANTES DE LA TEORÍA DE LA CONTABILIDAD

Directory of Open Access Journals (Sweden)

Raimundo Nonato Lima Filho

2012-06-01

Full Text Available Un dominio apropiado de los conceptos básicos de la Contabilidad y un análisis de sus características son esenciales para el desarrollo de la Teoría Contable. El proceso de toma de decisiones financieras exige el conocimiento de valores económicos adecuados, lo que se torna cada vez más demandado por los usuarios de la Contabilidad. Este trabajo, por tanto, buscó aferir la comprensión de algunos términos explotados en el contexto de la disciplina Teoría de la Contabilidad, tales como activos, pasivos, goodwill, ingresos, gastos, ganancias y pérdidas. Se examino una muestra compuesta por 591 alumnos matriculados en cursos de Ciencias Contables que ya habían frecuentado la disciplina Teoría de la Contabilidad en instituciones de enseñanza superior localizadas en la ciudad de Salvador (BA. El análisis de los resultados por medio de una regresión logística indica que la relación desempeño del discente y titulación del docente es más significativa que la relación desempeño del discente y tipo de la IES, sin embargo, de forma general, conceptos superficiales sobre los tópicos tratados en ese trabajo fueron citados en todos los niveles. Los resultados evidenciaron, en general, fallos en la comprensión de conceptos contables relevantes para la formación del alumno, reflejando mayoritariamente una visión superada o, como mínimo, conservadora. Cuando comparados por tipo de institución de enseñanza, los resultados indican que estudiantes de instituciones públicas poseen mejor dominio de los conceptos considerados en este estudio. La comprensión mejora un poco más cuando la titulación del docente evoluciona de especialista para maestro y de éste para doctor.

Quality of spelt pasta enriched with eggs and identification of eggs using 13C MAS NMR spectroscopy

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Filipović Jelena S.

2015-01-01

Full Text Available This paper deals with the characteristics of spelt pasta enriched with eggs. Eggs were added to spelt farina in the quantity of 0, 124 or 248 g/kg (equivalent to 0, 3 or 6 eggs, respectively. Post-hoc Tukey’s HSD test at 95% confidence limit showed significant differences between various samples. Relatively low coefficients of variation have been obtained for each applied assay (1.25-12.42%, which confirmed the high accuracy measurements and statistically significant results. Standard score analysis is applied for accessing the contribution of eggs content to spelt pasta quality. Maximum scores regarding quality (0.89 and chemical characteristics (0.70, have been obtained for 6 eggs spelt pasta formulation. It is also shown that the presence of eggs in pasta can be clearly confirmed by 13C MAS NMR spectroscopy. Simultaneous increase in area of peak positioned at 29.5 and 176 ppm is directly associated with the increase in the content of added eggs in the corresponding samples. Pertinent data point at positive contribution of eggs to the spelt pasta and also that NMR spectrum can be used in the egg quantity control. [Projekat Ministarstva nauke Republike Srbije, br. TRI 46005 i br. TR 31029

Use of IPA to demonstrate loss of forest interior birds from isolated woodlots

Science.gov (United States)

Robbins, C.S.; Boone, D.D.; Purroy, F.J.

1983-01-01

'Empleo de indices puntuales de abundancia (IPA) para demostrar la perdida de aves forestales en bosques aislados'. En Maryland, E.U., se seleccionaron bloques boscosos de diferente superficie, divididos en seis clase de tamano (2,8-6 ha, 7-14, 20-30, 34-80, 105-1300, mayores de 4000 ha). En estas ?islas' forestales fue programado un conjunto de muestreos puntuales con estas caracteristicas: 1) Cada punto se visito tres veces. 2) En cada visita se hicieron cuatro censos consecutivos de 5 minutos de duracion, empleando diferentes simbolos para machos cantores, adultos no cantores, aves en vuelo y aves inmaduras. 3) Los conteos se hicieron en tres epocas: final de Mayo, mitad de Junio y final de Junio. 4) Se dividio el tiempo de censo en tres priodos horarios: 5,15-6,30 ; 6,30-8; 8-9,30 hrs. 5) Los puntos se agruparon en co juntos de 4 a 9, considerando que un conjunto es el nlimero que un observador puede cubrir por manana. 6) La vegetacion fue descrita exhaustivamente en cuanto composicion y fisionomla. El principal objetivo que se busca consiste en conocer los requisitos areales de ciertas especies de bosque muy sensibles a la fragmentacion del habitat. Puede observarse (Figura 1) que una serie de migrantes de largo alcance se asientan en relacion con el aumento de la superficie del rodal arbo1ado, sabre todo en macizos de 4.000 o mas hectareas. Sin embargo, las especies sedentarias (Fig. 2) tienen pauta de presencia irregular en funcion del area, forestal, con tendencia a presentarse menos en los bosques mas extensos, Dryocopus pileatus, por excepcion, reacciona negativamente al pequeno tamano de la parcela arbolado, prefiriendo bosques grandes. Parecida respuesta da tambien Sitta carolinensis. Aunque se sabe poco de las exigencias areales de las aves forestales americanas, el metodo de los IPA resulta muy adecuado para esta clase de investigacion de tanto interes en gestion ambiental, posibilitando colectar gran cantidad de datos comparables en un periodo de

Research on the theory and methodology of integrating GIS and MAS and its application in simulating of pedestrians flows in a crowd's activity centre of Shanghai metropolitan

Science.gov (United States)

Liu, Miaolong; Chen, Peng

2006-10-01

Based on the development trend of research on urban morphology and its evolution from macro scale to micro scale, a new tight-coupling integrating method of GIS and MAS has been discussed briefly in this paper. After analyzing the characteristics and mechanism of pedestrian's flows in a crowds' activity center in a metropolitan, a prototype and mathematical expression of pedestrian's flows simulation have been put forward in the paper. A few key expressions and techniques for treating the specific behaviors of pedestrians flows, especially how the individuals of the flows make a decision to follow a original designed direction, how to make a decision whether stop or change his movement and select a new direction when the individuals meet a obstacle have been explored and discussed in detail. Using some tools provided by general GIS systems (such as ArcGIS 9) and a few specific programming languages, a new software system integrating GIS and MAS applicable for simulating pedestrians flows in a crowd activity centre has been developed successfully. Under the environment supported by the software system, as an applicable case, a dynamic evolution process of the pedestrian's flows (dispersed process for the spectators) in a crowds' activity center - The Shanghai Stadium has been simulated successfully. The successful simulating of a case of emergence when one or more exits emerge accidents will be very useful for managing and treating crowds' safety in a lot of assembling centers. At the end of the paper, some new research problems have been pointed out for the future.

O BARROCO NA ITÁLIA: SUA BELEZA E CONTRADIÇÕES

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Massimo Pinna

2011-06-01

Full Text Available Este breve artigo representa uma reflexáo sobre os momentos e as figuras mais relevantes do Barroco Italiano. Também quer ser uma tentativa de mostrar e demonstrar - através de um excursus relativamente completo de artistas e obras da época - como este período histórico tenha sido de importância fundamental para que a arte e a ciência modernas se abrissem a novos horizontes, tanto na pesquisa cientifica como na criaçáo artística. O objetivo que se pretende alcançar é aquele de dar mais uma contribuiçáo para superar de vez aquele preconceito em relaçáo ao barroco, percebido como algo negativo e sem grande valor artístico, mas também enfatizar o valor da cultura italiana para que este fenômeno se concretizasse, dando um novo rumo à cultura ocidental.

La protección de la creatividad de los artistas intérpretes

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Isidoro Arroyo Almaraz

2012-04-01

Full Text Available El artículo en cuestión, realiza un análisis del documento emitido por un grupo de actores, amparados por AISGE, en pro de los derechos de autoría, declaración hecha pública para los medios de comunicación social con motivo del 48 Festival Internacional de Cine de San Sebastián (año 2000. Dicho documento trata de reconocer a los actores derechos de autoría en la realización de sus funciones de representación del personaje. Los autores de este artículo analizan el Manifiesto y la condición y actuación de los actores, estableciendo comparaciones históricas relevantes con situaciones semejantes Además, tratan de identificar los aspectos mas importantes a tener en cuenta para valorar la repercusión de la intervención del actor en la obra creativa.

Entrevista de Crianças e Adolescentes em Contexto Policial e Forense: Uma Perspectiva do Desenvolvimento

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Rui Paulo

2015-09-01

Full Text Available Conhecer as diferentes etapas do desenvolvimento humano é uma competência essencial para o entrevistador em contexto policial e forense. É imprescindível adaptar a entrevista em função da avaliação das competências da testemunha. Este artigo caracteriza as etapas do desenvolvimento humano ao longo da infância e adolescência, destacando o desenvolvimento da memória e outras competências relevantes para a entrevista de testemunhas. Analisou-se ainda a adequabilidade de várias metodologias utilizadas para este fim, salientando algumas diretrizes fundamentais para a condução de uma boa entrevista. Por fim, focou-se na Entrevista Cognitiva Melhorada enquanto técnica promissora para entrevistar crianças e adolescentes. Pretende-se não apenas rever de forma crítica a literatura existente, mas também construir um guia para os profissionais desta área.

Condição de exportação e emprego formal na indústria brasileira, 2003-2008*

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Cassiano José Bezerra Marques Trovão

2014-08-01

Full Text Available A recomposição da base produtiva brasileira, após a década 1990, ocorreu em um contexto de economia aberta e exposta à maior concorrência internacional, muitas vezes estabelecida em condições desfavoráveis, mas caracterizada por maior inserção externa da indústria brasileira. Este ensaio analisa os efeitos desse contexto econômico para a geração de empregos no setor industrial, segundo a condição de inserção das empresas no mercado internacional. Busca elucidar se a inserção externa das empresas está associada a perfis ocupacionais mais favoráveis em termos de qualificação e estabilidade do emprego. Os resultados confirmam que a continuidade da trajetória de crescimento com inserção externa representa um vetor relevante para maior qualificação da força de trabalho.

Proceedings of the ISES Millennium Solar Forum 2000. 1. ed.

Energy Technology Data Exchange (ETDEWEB)

Estrada, Claudio A. [ed.

2000-07-01

The ISES Millennium Solar Forum 2000 was organized by the Association Nacional de Energia Solar (ANES) of Mexico, and the International Solar Energy Society (ISES), in collaboration with other national and international organizations from 17 to 22 of September, 2000 in Mexico City. The Scientific-Technical Conference forms the core of this forum. This comprises of 167 papers, which were presented orally and form part of the proceedings. The papers represent the results of research and technological development effort in Renewable Energy reported by professionals and students of 22 countries. Of course, a major component is from Mexico and Latin America. Here you will find useful information on the advances in different fields of Renewable Energy. [Spanish] La Asociacion Nacional de Energia Solar A.C. (ANES) y la International Solar Society (ISES), apoyadas por organizaciones nacionales e internacionales, comprometidas con la promocion de las energias renovables organizaron el ISES Millennium Solar Forum 2000, los dias 17 a 22 de septiembre del 2000 en la Ciudad de Mexico. Como parte medular de este foro se organizo la reunion cientifico-tecnica, en donde se presentaron 167 trabajos, la mayoria de los cuales se incluyen en esta memoria. Estos trabajos representan el esfuerzo en investigacion y desarrollo tecnologico de estudiantes y profesionales de mas de 22 paises, la mayoria de Mexico y America Latina. En esta memoria se encuentran los avances mas relevantes en las distintas areas de especializacion de las energias renovables.

Estudio comparativo del capitalismo argentino y chileno: un análisis desde las redes de directorio a fines del modelo sustitutivo de importaciones

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Erica Salvaj, Andrea Lluch

2012-12-01

Full Text Available La investigación sobre redes de directorios se ha llevado a cabo principalmente en los Estados Unidos y los países europeos. Escasos son los trabajos de investigación, ya sea de la naturaleza teórica o empírica, que han estudiado las características y los factores que afectan a esta importante red inter empresarial en economías periféricas y turbulentas. En este estudio comparativo e histórico, nos centramos en el efecto de la turbulencia política y económica y la composición de la propiedad de las empresas más importantes en la configuración de la estructura de las redes de directorios en Argentina y Chile a finales de los años sesenta. Las principales conclusiones de este análisis son las siguientes: 1 las redes de directorio son mas fragmentadas en Argentina que en Chile, 2 la mayoría de los actores mas relevantes en la red argentina son empresas de sectores considerados estratégicos por el gobierno, 3 las filiales de multinacionales ocupan una posición central en Argentina, y 4 los bancos y las empresas de propiedad de grupos de negocios locales jugaron un papel central en la red de directorios chilena. Este estudio muestra cómo los factores institucionales y económicos afectan la estructura de relaciones entre empresas.

UNA DÉCADA DEL GOBIERNO DEL M.A.S. EN BOLIVIA: UN BALANCE GLOBAL / A DECADE OF GOVERNMENT OF ‘MAS’ IN BOLIVIA: A GLOBAL BALANCE

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Luis Miguel Uharte Pozas

2017-12-01

Full Text Available This paper aims to carry out an analysis about the government experience of the Movement to Socialism (MAS in Bolivia since Evo Morales became president in 2006 to the present, identifying the main changes and conflicts that have occurred in four areas: social policy, domestic policy, foreign policy, and economy. The methodology is based on the collection of documents from various sources (public and business institutions, researchers, and recognized research centers, and interviews with various social actors (academics, politicians. We conclude that there have been substantial advances in terms of national sovereignty and economic model (overcoming neoliberalism, despite the contradictions and conflicts with sectors of internal dissent.

Tek Millet, Tek Ses? Türk Konseyi Ülkelerinin Birleşmiş Milletler Genel Kurulu Oy Yakınlaşması, 1993-2011

OpenAIRE

Kaplan, Muhittin; Yuvacı, Abdullah; Amanov, Shatlyk

2015-01-01

Bu makale, CCTS veya Türk Konseyi olarak bilinen Türk Dili Konuşan Ülkeler İşbirliği Konseyi üyelerinin (Azerbaycan, Kazakistan, Kırgızistan ve Türkiye) Birleşmiş Milletler Genel Kurulundaki (UNGA) oylamalarda ne ölçüde uyumlu hareket ettiklerini incelemektedir. 1993 – 2011 dönemi Türk Konseyi ülkelerinin Birleşmiş Milletler Genel Kurulu oy yakınlaşması- nın analiz edildiği ve bunun tüm BM üyelerinin ortalamasıyla kıyaslandığı bu makalede, Türk Konseyi ülkelerinin dış politika meseleleriyle i...

Analysis of the variation effect of the mass in an aeolian shock absorber; Analisis del efecto de la variacion de la masa en un amortiguador eolico

Energy Technology Data Exchange (ETDEWEB)

Olivares Arriaga, Abraham

2007-06-15

instrumentation used for this aim. In chapter 5 the exposition of the design of experiments is realized and the first tests are reviewed to find the variation of the coefficient of damping with respect to the parameters that more affect it. The realized test results are shown in chapter 6. Finally in chapter 7, the conclusions and recommendations are given about this work. The main conclusion was that the mass is the factor that produces more variations of the damping coefficient. For the factors of the length and the moment of inertia a significant variation of the damping is not produced. [Spanish] En Mexico asi como en todo el mundo, las lineas de transmision de energia electrica se ven sometidas a vibracion que puede variar segun las caracteristicas del flujo del aire que las produce; para atenuar la vibracion y con esto, las fallas que se pudieran producir, principalmente fallas por fatiga o fractura, se han empleado desde la decada de 1930 amortiguadores eolicos tipo Stockbridge para disipar esta energia. Los principales parametros de un amortiguador tipo Stockbridge son: la masa del contrapeso, el momento de inercia, la longitud del cable mensajero, el coeficiente de amortiguamiento, las propiedades del cable mensajero, etc. Uno de los parametros mas importantes en el diseno de los amortiguadores eolicos es el coeficiente adimensional de amortiguamiento, por lo que es vital saber si este parametro varia conforme cambian las caracteristicas del amortiguador eolico. La presente investigacion se centra en conocer si existe o no una variacion en el coeficiente adimensional de amortiguamiento con respecto a los parametros del amortiguador. En el capitulo 1 se introduce al fenomeno de la vibracion eolica y a sus caracteristicas principales. Se describen los equipos utilizados para la reduccion de la vibracion eolica llamados amortiguadores tipo Stockbridge, y se plantean la definicion y el objetivo de las tesis. En el capitulo 2 se revisan dos modelos matematicos para describir

Recoupling and decoupling of nuclear spin interactions at high MAS frequencies: numerical design of CNnν symmetry-based RF pulse schemes

International Nuclear Information System (INIS)

Herbst, Christian; Herbst, Jirada; Kirschstein, Anika; Leppert, Joerg; Ohlenschlaeger, Oliver; Goerlach, Matthias; Ramachandran, Ramadurai

2009-01-01

The CN n ν class of RF pulse schemes, commonly employed for recoupling and decoupling of nuclear spin interactions in magic angle spinning solid state NMR studies of biological systems, involves the application of a basic 'C' element corresponding to an RF cycle with unity propagator. In this study, the design of CN n ν symmetry-based RF pulse sequences for achieving 13 C- 13 C double-quantum dipolar recoupling and through bond scalar coupling mediated 13 C- 13 C chemical shift correlation has been examined at high MAS frequencies employing broadband, constant-amplitude, phase-modulated basic 'C' elements. The basic elements were implemented as a sandwich of a small number of short pulses of equal duration with each pulse characterised by an RF phase value. The phase-modulation profile of the 'C' element was optimised numerically so as to generate efficient RF pulse sequences. The performances of the sequences were evaluated via numerical simulations and experimental measurements and are presented here

¿CÓMO SE TRADUCE EL CURRICULUM FORMAL EN UNA EXPERIENCIA ESCOLAR RELEVANTE PARA LOS ALUMNOS DE UNA ESCUELA TELESECUNDARIA DE MÉXICO? (HOW DO THE STUDENTS OF A TELESECONDARY SCHOOL IN MEXICO TRANSLATE THE FORMAL CURRICULUM IN A RELEVANT SCHOOL EXPERIENCE?

Directory of Open Access Journals (Sweden)

Sánchez Tepatzi José de la luz

2011-08-01

Full Text Available Resumen:En este artículo se presenta parte de los resultados obtenidos en una investigación realizada entre los años 2009 y 2010 en una comunidad rural en México donde participaron 12 personas que abandonaron la escuela tele-secundaria. El estudio es de tipo cualitativo y las principales herramientas para obtener la información fueron la historia de vida y la entrevista abierta. La pregunta que orienta este artículo analiza las formas en cómo los alumnos traducen el curriculum formal en una experiencia escolar relevante y cómo influye tal significado en la permanencia. Los principales resultados señalan que la relación profesor-alumno, el trato entre pares y el apoyo de la familia, son elementos importantes para mejorar la permanencia y la calidad de los aprendizajes, así como para otorgar significado relevante a esa experiencia. En las conclusiones del estudio se muestra que el valor positivo hacia la escuela y la relevancia de la experiencia escolar, no son elementos suficientes para garantizar la permanencia, pues en esa decisión intervienen otros factores y razonamientos particulares. Es decir, cada alumno, en su mundo de vida construye un sentido de la realidad y este es el que orienta sus decisiones; una de ellas es permanecer o retirarse de la escuela. En este marco de relativa autonomía, los profesores estamos obligados a ofrecer a los alumnos la oportunidad de vivir una experiencia escolar relevante que les permita desenvolverse en un mundo complejo y aprender a lo largo de la vida, más allá de su condición y disposición para permanecer en la escuela.Abstract: This article I share part of the results of an investigation developed during the 2009 and 2010 year in a rural community in Mexico. In this study participated 12 persons who left school tele-secondary. The study is qualitative and the main methodological tools were the history of life and the open interview. The question that guides this research, it examines the

Effect of Ge/Si substitutions on the local geometry of Si framework sites in zeolites: A combined high resolutionsup29/supSi MAS NMR and DFT/MM study on zeolite Beta polymorph C (BEC)

Czech Academy of Sciences Publication Activity Database

Whittleton, Sarah R.; Vicente, A.; Fernandez, C.; Rastegar, Somayeh F.; Fishchuk, Anna V.; Sklenák, Štěpán

2018-01-01

Roč. 267, SEP 2018 (2018), s. 124-133 ISSN 1387-1811 R&D Projects: GA ČR(CZ) GA15-14007S Grant - others:Ga MŠk(CZ) LM2015070 Institutional support: RVO:61388955 Keywords : 29 Si MAS NMR * bec * Ge-zeolites * Germanoaluminosilicates * Zeolite Beta polymorph C Subject RIV: CF - Physical ; Theoretical Chemistry OBOR OECD: Physical chemistry Impact factor: 3.615, year: 2016

Žurnāla SHAPE pārpozicionēšanas stratēģijas problēmas un risinājumi.

OpenAIRE

Nikodemusa, Zane

2013-01-01

Maģistra darba tēma ir „Žurnāla SHAPE pārpozicionēšanas stratēģijas problēmas un risinājumi”. Maģistra darba mērķis ir izpētīt žurnāla SHAPE pārpozicionēšanas stratēģiju, tās ieguvumus un zaudējumus no uzņēmuma skatu punkta, kā arī ietekmējošos faktorus un risinājumus turpmākai tirgus pozīcijas stiprināšanai. Darba gaitā autore izmanto dažādas informācijas apkopošanas un analīzes metodes. Teorētiskās daļas veidošanai darba autore izmantoja literatūras referatīvās analīzes metodi. Informāci...

Mācību video materiālu izstrāde tēmas „Elektrība” apguvei vidusskolas fizikā

OpenAIRE

Kravis, Kārlis

2013-01-01

Diplomdarbā „Mācību video materiālu izstrāde tēmas „Elektrība” apguvei vidusskolas fizikā” ir izveidoti, aprobēti un ekspertu izvērtēti 15 mācību video. Tēma „Elektrība”, it īpaši elektrostatikas jautājumi, ir abstrakti skolēna izpratnei, jo fizikālie procesi notiek mikropasaules līmenī. Līdz ar sabiedrības pieprasījumu par mācību materiālu digitalizāciju un esošo materiālu piedāvājumu ir aktualizējies jautājums, kā kvalitatīvus digitālos materiālus izmantot mācību procesā skolēnu zināšanu un...

PROGRAMA PARA LA VERIFICACION DE LA TECNOLOGIA AMBIENTAL - CULTIVANDO ASOCIACIONES PARA EL INCREMENTO DE LAS SELECCIONES DE TECNOLOGIAS AMBIENTALES A LOS SECTORES PUBLICO Y PRIVADO EN LOS ESTADOS UNIDOS Y EN EL EXTERIOR (EPA/600/F-97/005A)

Science.gov (United States)

La meta del ETV es verificar, a travs de unaevaluacin de informacin objectiva y de calidad, las caracteristicas del desempeo de tecnologascomerciales ambientales. As el ETV proporciona alos compradores y los licenciadores potenciales una valoracin imparcial y creble d...

Distributed decision-making in electric power system transmission maintenance scheduling using multi-agent systems (MAS)

Science.gov (United States)

Zhang, Zhong

In this work, motivated by the need to coordinate transmission maintenance scheduling among a multiplicity of self-interested entities in restructured power industry, a distributed decision support framework based on multiagent negotiation systems (MANS) is developed. An innovative risk-based transmission maintenance optimization procedure is introduced. Several models for linking condition monitoring information to the equipment's instantaneous failure probability are presented, which enable quantitative evaluation of the effectiveness of maintenance activities in terms of system cumulative risk reduction. Methodologies of statistical processing, equipment deterioration evaluation and time-dependent failure probability calculation are also described. A novel framework capable of facilitating distributed decision-making through multiagent negotiation is developed. A multiagent negotiation model is developed and illustrated that accounts for uncertainty and enables social rationality. Some issues of multiagent negotiation convergence and scalability are discussed. The relationships between agent-based negotiation and auction systems are also identified. A four-step MAS design methodology for constructing multiagent systems for power system applications is presented. A generic multiagent negotiation system, capable of inter-agent communication and distributed decision support through inter-agent negotiations, is implemented. A multiagent system framework for facilitating the automated integration of condition monitoring information and maintenance scheduling for power transformers is developed. Simulations of multiagent negotiation-based maintenance scheduling among several independent utilities are provided. It is shown to be a viable alternative solution paradigm to the traditional centralized optimization approach in today's deregulated environment. This multiagent system framework not only facilitates the decision-making among competing power system entities, but

Temas ambientais relevantes Relevant environmental issues

Directory of Open Access Journals (Sweden)

Eneas Salati

2006-04-01

Full Text Available NESTE trabalho, são indicados os principais temas ambientais para o Brasil, num futuro próximo (2022. Impactos do aumento da temperatura são estudados através de cenários, que podem modificar o balanço hídrico em algumas regiões, tendo sido observado um aumento da ordem de 0,78ºC no período de 1917 a 2003, na região de Piracicaba. Para a região amazônica, foi observado um aumento de 0,56ºC durante o século XX. Tanto o desmatamento quanto as Mudanças Climáticas Globais atuam na direção de um aumento da temperatura, enquanto o desmatamento influi na direção de uma diminuição das precipitações. O desmatamento provoca, ainda, uma grande perda de biodiversidade, sendo estimadas em uma perda entre 8.000 até 34.000 espécies, considerando-se que o desmatamento aumenta em 1% ao ano.THIS PAPER indicates the environmental issues that must necessarily be approached, in Brazil, in a near future (2022. A study was made on some aspects of the effects of deforestation and Global Climate Change. A temperature rise around 0,78% has been observed during period of 1917 and 2003 in the Piracicaba region. For the Amazon region a rise of 0,56% was observed the 20th Century. The existing information indicates that not only deforestation but also Global Climate Changes act upon temperature rise. Deforestation has direct influence in precipitation decrease. The consequences of Global Climate Change are still unknown, being that some models indicate a precipitation rise and others a decrease. Deforestation also provokes great biodiversity loss, estimated between 8.000 to 34.000 species, considering that deforestation raises 1% per year.

Status report about the works for the start up of the RA-0 `zero power` nuclear reactor at the Cordoba National University; Estado actual de avance de las tareas para la nueva puesta en marcha del reactor nuclear RA-0 en la Universidad Nacional de Cordoba

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Martin, H R; Carballido, C; Oliveras, T

1992-12-31

After two years of works at the Cordoba National University for the new start-up of the RA-0 `zero power` nuclear reactor, the results obtained are herein presented. Starting with practically null infrastructure at the beginning, specially in human resources and instrumentation of the reactor, the objectives can be considered satisfactory. The training in work of the future operational staff, the design and the construction of the instrumentation and the fitting of the installations are the principal items described in this paper. An special attention is devoted to the insertion of this type of installation in the university organization, usually not prepared for the quality and control activities, which is necessarily considered in these type of works. (Author). [Espanol] Luego de aproximadamente dos anos de trabajo para la nueva puesta en marcha del REACTOR NUCLEAR RA-0, se han alcanzado los resultados presentados en este trabajo. Partiendo de una infraestructura practicamente inexistente en cuanto a recursos humanos y estado de las instalaciones, los avances logrados son significativos. Comenzando por la capacitacion y el entrenamiento del futuro personal de operacion y pasando por la adecuacion de los equipos y componentes, hasta la confeccion de la documentacion mandatoria, se muestran los aspectos mas destacables de los trabajos realizados. Una atencion especial se dedica a la insercion de una instalacion de este tipo en el ambito universitario, el cual por sus particulares caracteristicas, ha debido ser tenido en cuenta permanentemente para la futura operacion de las instalaciones. (Autor).

Una herramienta para la selección automatizada de aceros en el contexto // A tool for the automated selection of steels in the Mechanical Engineering´s context

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L. Dumitrescu

2010-01-01

Full Text Available ResumenEl diseno de Ingenieria de un producto o componente constituye una actividad dificil, compleja ymultidisciplinaria, enfocada a la resolucion de problemas. En el presente trabajo se muestra eldesarrollo de una herramienta automatizada para la seleccion de los aceros mas utilizados en laconstruccion de maquinarias. La herramienta constituye una ayuda para la seleccion de losmateriales desde la etapa conceptual del proceso de diseno, donde se identifican las diferentescategorias de materiales a utilizar. La herramienta comprende las caracteristicas y propiedades masrelevantes de los aceros de Ingenieria disponibles en seis normas internacionales: Japonesa (JIS,Alemana (DIN, Vbn, DIN-Vbn, Rusa (GOST, Americana (AISI, SAE, AISI-SAE, ASTM, Inglesa (BS, EN,GB, Francesa (AFNOR y la Norma Cubana (NC vigente.Palabras claves: materiales, automatizada, aceros, ingenieria.____________________________________________________________AbstractThe product or component design constitutes a difficult, complex and multidisciplinary activity,focused to the resolution of problems. Presently work show the development of an automated toolfor the selection of the more used steels in the construction of machineries. The tool constitute ahelp for the selection of the materials from the conceptual stage of the design process, where thedifferent categories of materials are identified to use. The tool analyze the characteristics and morecommon properties of the available steels in six international standards: JIS (Japan, DIN, Vbn, DINVbn(Germany, GOST (Russia, AISI, SAE, AISI-SAE, ASTM (USA, BS, IN, GB (England, AFNOR(France and NC (Cuba.Key words: materials, automated, steels, engineering.

CULTIVO in vitro DE PITAYO (Stenocereus stellatus [Pfeiffer] Riccobono

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Ylvi María Martínez Villegas

2011-01-01

Full Text Available El pitayo (Stenocereus stellatus es una cactacea nativa de Mexico, apreciada por sus frutos, los cuales tienen caracteristicas organolepticas unicas. Su propagacion es por esquejes tomados de plantas adultas, generalmente silvestres, causando deforestacion de zonas naturales. El objetivo fue definir el tipo y la dosis de citocininas asi como la concentracion de sacarosa que permita obtener mayor numero de plantas de pitayo in vitro. Se usaron semillas de frutos maduros de las cuales se obtuvieron plantulas para iniciar el incremento de plantas. Para la multiplicacion de brotes se utilizaron plantulas de 2 a 3 cm de altura divididas en secciones de 1 cm, el medio fue MS con 3 % de sacarosa; se evaluaron tres citocininas (kinetina, 6-benciladenina, y 2-isopentiladenina en cinco concentraciones (2.2, 4.4, 8.8, 17.6 y 35.2 ¿ÊM. Para el crecimiento de brotes se uso medio MS con sacarosa (1, 2, 3, 4 y 5 %. En la aclimatacion se evaluo el efecto de la concentracion de sacarosa usada para el crecimiento de los brotes in vitro. Se observo que la concentracion de 17.6 ¿ÊM de 6-benciladenina ocasiono formacion de brotes en todos los explantes, los cuales tuvieron ocho brotes por explante. Los brotes desarrollaron la mayor altura cuando fueron cultivados en 3 y 4 % de sacarosa. En aclimatacion sobrevivieron mas del 92 % de las plantas trasplantadas a sustrato.

¿Algo más que "ganadores del pan"?: El papel de los hombres en el ámbito familiar en España (1975-1996

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CELIA VALIENTE FERNÁNDEZ

1997-01-01

Full Text Available el aumento de la importancia de otras funciones del llamado cabeza de familia distintas de la provision economica (por ejemplo, el cuidado de los niños o la realizacion de las tareas domesticas se ha producido en menor medida en españa que en otros paises occidentales, si bien a nuestro pais porcentajes importates de la poblacion de ambos sexos opinan que las mencionadas actividades han de ser compartidas por ambos miembros de la pareja. este articulo explora algunos factores que explican esta divergencia entre actitudes mas bien igualitarias y comportamientos que no lo son tanto, entre otros: la distinta posicion de hombres y mujeres en el mercado de trabajo ; la carencia de habilidades, destrezas y conocimientos necesarios para realizar tareas domesticas y cuidar a los niños por parte de muchos varones, carencia que es en cierta medida el resultado de la educacion recibida en sus familias de origen y de las circunstancias del inicio de su edad adulta ; las concepciones de la mayor parte de lapoblacion acerca de las caracteristicas de los quehaceres del hogar ; la extendida opinion de que el trabajo extradomestico femenino es de menor importancia que el masculino, ademas de la creencia, bastante generalizada, de la importancia del cuidado materno para los niños pequeños ; y, por ultimo, la ausencia de politicas publicas que no solo permitan sino tambien incentiven a los hombres a participar en el cuidado de sus hijos.

Barrera del desempeño laboral

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María Del Rosario Alvarez-Ramirez

2007-12-01

Full Text Available El estres es un hecho complejo en la vida de toda persona con efectos distintos en cada quien, que no puede ser evitada ya que en todos lo momentos de la vida se esta en riesgo de presentarlo ante cualquier situacion, o una actividad laboral o familiar, que puede llegar a generar cualquier cambio que represente estres. Los sucesos negativos, dario, enfermedad o muerte de un ser querido, son hechos estresantes, asi como los sucesos positivos; ascender en el trabajo trae consigo el estres del nuevo status, de nuevas responsabilidades. Dentro de los trastornos clinicos vinculados al estres hay alteraciones como: trastornos del sumo, ulceras, dolores de cabeza, aceleracion del ritmo cardiaco y otros trastornos como los cardiovasculares: palpitaciones, hipertension arterial, trastornos digestivos, dolores, ardores, vomitos, nauseas, diarrea o estreriimiento y trastornos cutaneos: donde se presenta transpiracion de manos y pies y problemas alergicos. En el estres se pueden llegar a presentar dos tipos de estres: el positivo y el negativo. Los cuales presentan unas caracteristicas muy particulares, como en el estres negativo: una persona se encuentra ante un nitmero creciente de demandas que le plantean dificultad o constituyen una amenaza, se debe mirar el modo de afrontarlas. En el Estres positivo se presenta cuando la percepcion de capacidad de demanda es mucho mas amplia que las verdaderas demandas. Un aspecto fundamental ante la presencia de estres es la practica necesaria de un deporte o la realizacion de actividades recreativas.

Analysis of the automation and control of the well production conditions in the Cerro Prieto geothermal field, Mexico; Analisis de la automatizacion y del control de las condiciones de produccion de los pozos del campo geotermico de Cerro Prieto, BC, Mexico

Energy Technology Data Exchange (ETDEWEB)

Murillo Zamora, Isaac [Comision Federal de Electricidad, Mexicali, BC, (Mexico); Ocampo Diaz, Juan de Dios [Universidad Autonoma de Baja California, Mexicali, BC, (Mexico); De la Pena Reyna, Gilberto [Comision Federal de Electricidad, Morelia, Michoacan (Mexico)

2005-12-01

Through 31 years of development of the Cerro Prieto geothermal field, the number of wells in operation and the distances between them has been increasing. Now there are 150 wells producing a mixture of water and steam at different ratios, depending on the reservoir characteristics (pressure, temperature, depth, etc.) and the operation conditions in the superficial installations (obstructions in the orifice plates diameter, separator pressures, etc.). Therefore, Comision Federal de Electricidad (CFE) has started a pilot plan to handle the automation and control of the operating conditions of production wells, and to install a data production acquisition system. The initial results of the system are in this paper. [Spanish] A traves de los 31 anos de desarrollo del campo geotermico de Cerro Prieto el numero de pozos en operacion asi como la distancia entre ellos se ha estado incrementando. Ahora hay mas de 150 pozos produciendo una cantidad de mezcla de agua y vapor a diferentes rangos, dependiendo de las caracteristicas del yacimiento (presion, temperatura, profundidad, etc.) y de las condiciones de operacion de las instalaciones superficiales (diametros de placas de orificio obstruidos, presion de los separadores, etc.). Como resultado la Comision Federal de Electricidad (CFE) ha dado inicio a un plan de pruebas para llevar a cabo la automatizacion y control de las condiciones de operacion de los pozos productores, e instalar un sistema con equipos para recoleccion de datos del campo, cuyos primeros resultados se presentan en este articulo.

Informação e conhecimento na economia solidária

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Angel Freddy Godoy Viera

2016-03-01

Full Text Available Objetivo. O estudo busca identificar como a questão da informação e do conhecimento é abordada em Economia Solidária (ES de forma a identificar as necessidades e problemas relacionados. Método. Para alcançar os objetivos propostos foi realizada pesquisa quantitativa bibliográfica com amostra composta por 60 artigos revisados por pares recuperados na base SciELO (Scientific Electronic Library Online com as palavras-chave Economia Solidária no título. A pesquisa relaciona as frequências dos termos informação e conhecimento com 14 classes de interesse e objeto de estudo da Ciência da Informação. Resultados. Foram identificados os autores que mais citam a informação e o conhecimento em suas publicações, bem como os períodicos mais relevantes para a área e os problemas mais recorrentes em relação à informação e ao conhecimento na Economia Solidária, em conformidade com a amostra e os procedimentos metodológicos. Ao final é apresentada tabela que aponta formas de atuação possíveis pelos profissionais da informação frente à Economia Solidária. Conclusões. Conclui que a informação e o conhecimento são fundamentais para a Economia Solidária, mas que muitas carências são básicas e que o tipo de informação mais relevante para a Economia Solidária é a informação para a tomada de decisão coletiva.

Deafness memories in Antonio Lobo Antunes’ chronicles “O surdo” (1998 and “Não foi com certeza assim mas faz de conta” (2002

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Alessandra Gomes Silva

2017-06-01

Full Text Available This work intends to analyze some images and meanings attributed to deafness in two chronicles of Portuguese writer António Lobo Antunes: “Não foi com certeza assim mas faz de conta” (2002 and “O surdo” (1998. We are also interested in the type of creation of these texts, drawing a parallel with the kind of reflection developed in some writings of Walter Benjamin, basically in “One-way street” and “Berlin childhood”. In both authors, the fictional production is linked to the issue of memory, taking as its starting point the contact with a seemingly simple everyday object. Finally, we emphasize the discussion of the normalization of bodies, based on the issue of not hearing and how it is socially perceived.---DOI: http://dx.doi.org/10.22409/abriluff.2017n18a369

PENGENDALIAN RISIKO KESEHATAN KARENA PAJANAN MERKURI PADA KEGIATAN TAMBANG EMAS TRADISIONAL DI KABUPATEN GUNUNG MAS, KALIMANTAN TENGAH

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Inswiasri Inswiasri

2012-11-01

Full Text Available Increasing informal gold mining activities can cause environmental pollution and affected the public health. So that, the study was needed in order to assess health risk of population working in or living near informal gold mining and processing in Gunung Mas District, Central Kalimantan. Subjects in cross sectional study were 112 informal miners and 112 living near informal gold mining and processing. We measured content of mercury in ambient, water and fish; and interviewed the subjects. Subjects completed the questionnaire. Estimation of health risk assessment and system dynamics analysis to handle the health risk were conducted too. Detection of mercury using Atomic Absorption Spectrophotometer (AAS and cold vapour method was conducted at Ecology Health Research Center Laboratory. The result showed that; the mean concentration of airborne mercury was 0.072 + 0,0198 mg/m3 in mining area and 0.0369 +0,0092 mg/m3 in out side of mining area respectively. The highest mean level of mercury in fish 0.3167 ppm from market in Kurun District. Intake of inhalation mercury 0.02285 mg/kg, day for miners and 0.01406 mg/kg, day for non-miner living near the informal mining and processing. Mean of RQ inhalation 76.160 for miners and 46.876 for non-miners living near the informal mining and processing. RQ inhalation tend to increase time to time. The miners have to handle mercury emission using retort. Keywords: Risk assessment, informal gold miner, air pollution, mercury

Percepción de los Graduandos en Ciencias Contables de Salvador (BA Sobre los Conceptos Relevantes de la Teoría de la Contabilidad

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Raimundo Nonato Lima Filho

2012-01-01

Full Text Available Un dominio apropiado de los conceptos básicos de la Contabilidad y un análisis de sus características son esenciales para el desarrollo de la Teoría Contable. El proceso de toma de decisiones financieras exige el conocimiento de valores económicos adecuados, lo que se torna cada vez más demandado por los usuarios de la Contabilidad. Este trabajo, por tanto, buscó aferir la comprensión de algunos términos explotados en el contexto de la disciplina Teoría de la Contabilidad, tales como activos, pasivos, goodwill, ingresos, gastos, ganancias y pérdidas. Se examinó una muestra compuesta por 591 alumnos matriculados en cursos de Ciencias Contables que ya habían frecuentado la disciplina Teoría de la Contabilidad en instituciones de enseñanza superior localizadas en la ciudad de Salvador (BA. El análisis de los resultados por medio de una regresión logística indica que la relación desempeño del discente y titulación del docente es más significativa que la relación desempeño del discente y tipo de la IES, sin embargo, de forma general, conceptos superficiales sobre los tópicos tratados en ese trabajo fueron citados en todos los niveles. Los resultados evidenciaron, en general, fallos en la comprensión de conceptos contables relevantes para la formación del alumno, reflejando mayoritariamente una visión superada o, como mínimo, conservadora. Cuando comparados por tipo de institución de enseñanza, los resultados indican que estudiantes de instituciones públicas poseen mejor dominio de los conceptos considerados en este estudio. La comprensión mejora un poco más cuando la titulación del docente evoluciona de especialista para maestro y de éste para doctor.

PENGARUH IKLAN DAN ATRIBUT PRODUK TERHADAP KEPUTUSAN PEMBELIAN SMARTPHONE SAMSUNG SERI GALAXY (SURVEI PADA PELANGGAN ITC ROXY MAS

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Basrah Saidani

2013-04-01

Full Text Available Generally, the purpose of this research are: 1 to get more knowledge about Advertising, product attributes and the decision to purchase smartphone Samsung Galaxy series,. 2 to get more knowledge about the influence of Advertising to purchasing decisions smartphone Samsung Galaxy series, 3 to get more knowledge about the influence of product attributes to purchasing decisions smartphone Samsung Galaxy series, 4 to get more knowledge about influence of Advertising and product attributes simultaneously the decision to purchase smartphone Samsung Galaxy series. The observation unit in this research is 100 respondents visitors ITC Roxy Mas – Jakarta to purchase smartphone Samsung Galaxy series. Technique of determining the sample using a convenience sampling technique. Data collection techniques using the questionnaire Liker scale from 1 to 5. Descriptive analysis results showed: 1 the Advertising from Samsung Galaxy series is good enough as a whole but still lacking in message Acceptance and message retention. 2 Attribute a good product overall dimesi dominated by product futures, 3 the decision to purchase is dominated by post-purchase where consumers get satisfaction after buying the Samsung Galaxy series. Hypothesis testing results showed: 1 Advertising have a significant effect on purchasing decisions, 2 product attributes have a significant effect on purchasing decisions, 3 Advertising and product attributes a significant effect on purchasing decisions.

Ab initio study of structure and stability of thiocarbonates, thiosilicates, thionitrates, thiophosphates, thioborates and thioaluminates L2AS3 and MAS3 (L=Li, Na; M=Be, Mg; A=C, Si, N+, P+, B-, Al-)

International Nuclear Information System (INIS)

Charkin, D.O.; Makki, M.L.; Charkin, O.P.

1998-01-01

Nonempiric calculations of potential energy surfaces for the family of isoelectron molecules and ions of lithium and sodium thiosalts of the MAS 3 type atr carried out within the frames of the MP2/6-31G * +ZPE(HF/6-31G * ) and MP4SDTQ/6-31(+)G + //MP2/6-31G * +ZPE(MP2/6-31G * ) approximations. Plane structures C s with disulfide bridge S-S are found to be most preferable for thionitrates, angular structure C s with one bridge and two end sulfur atoms - for thioborate negative ions BeBS 3 , MgBS 3 and molecules B 2 S 3 , Al 2 S 3 and structures C 2v with bidentate coordination of cations and thioanion AS 3 n- - for remaining systems. Equilibrium geometric parameters and relative energies of isomers, energies of their decomposition, frequencies and IR-intensities of normal oscillations are determined, effect of electron correlation on the calculation results is analyzed. Ortho-meta-isomery in thioborates and thioaluminates, deformation and polarization of thioanions under the effect of alkali and alkaline-earth cations and trends in chomping molecular properties in various series of the L 2 AS 3 and MAS 3 salts are discussed

Editorial

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Alberto Simões

2017-07-01

Full Text Available Este é o nono ano em que a Linguamática é editada. Todos os anos temos tido novidades, o que tem levado a nossa/vossa revista cada vez mais longe. Desde a publicação regular, até à indexação nos mais relevantes índices de indexação científica, a Linguamática tem-se superado. E isto só é possível graças aos nossos autores, que continuam a apostar na publicação nas línguas ibéricas, e aos nossos revisores, que avaliam os artigos mas também dão sugestões construtivas no sentido de melhorar todos os trabalhos publicados. O nosso trabalho, como editores, tem sido a preparação das edições, mas também a contínua vontade de recompensar os nossos autores e revisores. Nesse sentido, nos últimos meses todas as revisões que foram feitas sobre artigos publicados, foram registadas na plataforma Publons. O objetivo desta plataforma é registar oficialmente todo o trabalho de revisão que habitualmente é feito pro bono. Durante as próximas edições esse registo continuará a ser realizado, facilitando aos revisores o processo de registo desta tarefa tão valiosa. Finalmente, mas não menos importante, a Linguamática tem, a partir de agora, através da Universidade do Minho, a possibilidade de atribuir aos artigos publicados um Document Object Identifier (DOI. Assim, nesta edição, na folha de rosto de cada artigo, estará presente o número de DOI, bem como um QR-Code que permite aceder diretamente ao objeto respetivo. Durante os próximos meses serão adicionados registos para todos os trabalhos publicados na Linguamática, desde a sua primeira edição, a 5 de junho de 2009. A todos, o nosso obrigado!

Indicadores de carga del cuidado familiar de personas con enfermedad crónica: relevantes en salud pública / Cost indicators of family care of people with chronic disease: relevant in public health / Os indicadores de maior peso no cuidado familiar de doentes crônicos: são relevantes na saúde pública

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Lucy Barrera-Ortiz, Enf., Mg.

2015-11-01

cuidado familiar de personas con enfermedad crónica: relevantes en salud pública. MedUNAB 2015; 18(2:125-134] Introduction: Addressing chronic illness implies having an outline of objective, pertinent, accurate, reliable, and cost-effective measures. Objective: This paper’s objective is to establish a system of indicators required to measure the relative cost of family care of people with chronic disease. Metodology: Starting with the “Model for the Reduction of Care Burden of Chronic Disease” MDCC- EC, and based on the UN SIMEGE Guide, for the development of indicators in order to measure and monitor the processes aimed at reducing the cost of family care of chronic disease. Results: The methodology proposed in the UN SIMEGE Guide allowed the construction of indicators for five characteristics associated with family care for people with chronic disease. These characteristics are described as a fundamental component of the MDCC-EC and they include:The care access, care continuity, care safety, the self-care capacity and the social support with the use of Information and Communication Technologies (ICTs. Conclusions: The 19 indicators established allow the measurement of the cost of family care for people with chronic disease. This measurement is necessary and indispensable to know, understand, guide and correct implementation of strategies, actions and results of the implementation of MDCC-EC in relation to ill people and their families. These indicators are essential in order to communicate the results of the fulfillment of the goals for how the conceptual theoretical approaches of the MDCC-EC are met in compliance with the requirements of users of services and to continue improving the given services adding value to them. [Barrera-Ortiz L, Carreño SP, Carrillo GM, Chaparro-Díaz L, Gómez OJ, Sánchez-Herrera B, Vargas-Rosero E. Cost indicators of family care of people with chronic disease: relevant in public health. MedUNAB 2015; 18(2:125-134] Introdução: Na

Program of actions for energy conservation in the equipment for the urban public transportation; Programa de acciones para el ahorro de la energia en los equipos de transporte publico urbanos

Energy Technology Data Exchange (ETDEWEB)

Sanhez Arellano, L.I. [Facultad de Ingenieria, Universidad Autonoma del Estado de Mexico, Toluca (Mexico)

1995-12-31

las redes de transporte y su explotacion, asi como la del ahorro y uso eficiente de la energia utilizada para su funcionamiento. El trabajo aqui presentado se inscribe dentro de las lineas de interes de este programa. Las caracteristicas propias de operacion y de consumo de energia de los diferentes tipos de vehiculos utilizados en el servicio de transporte publico urbano, dependen principalmente de las aplicaciones para las que se hayan previsto. Sin embargo un punto importante es el conocer de manera mas concreta y especifica la naturaleza y otras opciones de utilizacion posibles de los diversos sistemas de transporte urbano, asi como su impacto energetico y la posibilidad de ahorros bien canalizados. El objetivo de este trabajo es la de presentar de manera concreta los diferentes equipos utilizados en el transporte publico urbano, haciendo una comparacion energetica, ademas de plantear un programa de acciones tendientes al ahorro de energia para los vehiculos que operan actualmente en las principales ciudades del pais. Se indican las principales acciones y sus caracteristicas basicas para su puesta en marcha, las cuales se pueden resumir en tres grandes rubros: -acciones dentro de las mismas empresas y sobre el parque vehicular existente. -acciones sobre la administracion y explotacion de los sistemas de transporte. -acciones para la utilizacion de nuevos equipos y vehiculos mas eficientes. Una explicacion detallada de cada una de estas acciones y su impacto en el consumo de energeticos son el proposito final de este estudio.

Program of actions for energy conservation in the equipment for the urban public transportation; Programa de acciones para el ahorro de la energia en los equipos de transporte publico urbanos

Energy Technology Data Exchange (ETDEWEB)

Sanhez Arellano, L I [Facultad de Ingenieria, Universidad Autonoma del Estado de Mexico, Toluca (Mexico)

1996-12-31

las redes de transporte y su explotacion, asi como la del ahorro y uso eficiente de la energia utilizada para su funcionamiento. El trabajo aqui presentado se inscribe dentro de las lineas de interes de este programa. Las caracteristicas propias de operacion y de consumo de energia de los diferentes tipos de vehiculos utilizados en el servicio de transporte publico urbano, dependen principalmente de las aplicaciones para las que se hayan previsto. Sin embargo un punto importante es el conocer de manera mas concreta y especifica la naturaleza y otras opciones de utilizacion posibles de los diversos sistemas de transporte urbano, asi como su impacto energetico y la posibilidad de ahorros bien canalizados. El objetivo de este trabajo es la de presentar de manera concreta los diferentes equipos utilizados en el transporte publico urbano, haciendo una comparacion energetica, ademas de plantear un programa de acciones tendientes al ahorro de energia para los vehiculos que operan actualmente en las principales ciudades del pais. Se indican las principales acciones y sus caracteristicas basicas para su puesta en marcha, las cuales se pueden resumir en tres grandes rubros: -acciones dentro de las mismas empresas y sobre el parque vehicular existente. -acciones sobre la administracion y explotacion de los sistemas de transporte. -acciones para la utilizacion de nuevos equipos y vehiculos mas eficientes. Una explicacion detallada de cada una de estas acciones y su impacto en el consumo de energeticos son el proposito final de este estudio.

Utilização da entropia informacional na seleção de indicadores financeiros mais relevantes para tomada de decisão no setor público: o caso dos estados brasileiros

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Paulo Sérgio Almeida-Santos

Full Text Available O propósito do artigo consiste em verificar, dentre uma seleção não aleatória de indicadores financeiros aplicados às demonstrações contábeis do setor público, quais deles possuem o maior peso ou nível de informação, medidos por meio da entropia informacional. Trata-se uma pesquisa quantitativa do tipo documental e descritiva, em que é pesquisado o caso dos estados brasileiros. Firmado na teoria da informação, na qual a entropia é propagada, são selecionados intencionalmente oito indicadores financeiros de análise de balanços aplicados exclusivamente a entidades governamentais. Ao proceder com cálculo da entropia informacional sobre os indicadores selecionados - aqueles de caráter orçamentário apresentaram um grau de entropia máxima; os de caráter patrimonial - apresentaram grau de entropia mínima; isto permite uma breve conclusão, em que indicadores orçamentários, por ser regrados pelos limites da LRF, são considerados dentro da ótica da entropia informacional como indicadores irrelevantes, ao passo que os indicadores patrimoniais são tidos por ela como relevantes, por apresentarem maior peso/grau de informação.

A preferência do público em relação aos recursos gráficos nos livros infantis para crianças na fase de alfabetização

Directory of Open Access Journals (Sweden)

Daiara Serrano Rotava

2014-07-01

Full Text Available Este artigo apresenta a pesquisa realizada sobre o projeto gráfico de livros infantis para crianças entre 4 e 7 anos mas que podem ter idades variadas devido as diversas condições e estímulos de aprendizagem. Encontra-se neste artigo a pesquisa, bibliográfica e de campo, referente ao assunto, norteada pelo método indutivo. Para construção do referencial teórico, foram usados fundamentos de psicologia, pedagogia e design gráfico. Como pesquisa de campo foram realizadas entrevistas com pais, dinâmica com crianças e observação em livraria. Analisando as informações obtidas concluiu-se que o público apresenta preferência por livros interativos ou com inovações gráficas, evidenciando que tais recursos são relevantes para despertar o interesse pelo livro infantil. Este artigo é resultado do projeto de pesquisa da FAPESC em parceria com a Universidade do Vale do Itajaí.

hortícolas andaluzas

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Leonor María Pérez Naranjo

2005-01-01

Full Text Available La renta de las explotaciones agrarias, estimada mediante su margen bruto directo, no se encuentra distribuida de forma uniforme por el territorio. Dada la importancia de la horticultura en el sector agrario andaluz, el objetivo del presente trabajo es analizar la distribución espacial del margen bruto de los distintos tipos de estructuras productivas clasificadas dentro de este subsector. Tras un análisis financiero de las explotaciones hortícolas, procedimos a la localización territorial de dichas explotaciones a nivel municipal. El análisis espacial de datos (análisis de densidad permitió determinar que, dependiendo de la estrategia productiva, la localización geográfica del margen bruto por hectárea y de los jornales por unidad de superficie es muy diferente. Esta metodología puede ser muy útil para conocer dónde están localizadas las explotaciones mas relevantes, tanto desde un punto de vista financiero como social, con el fin de diseñar, por ejemplo, políticas agrarias.

Efeitos indesejáveis dos hipolipemiantes: condutas na prática clínica Adverse effects of hypolipemic drugs: how to treat in clinical practice

Directory of Open Access Journals (Sweden)

Neusa Forti

2008-08-01

Full Text Available Os fármacos hipolipemiantes, apesar de diminuírem a morbimortalidade por doença coronariana, não são destituídos de efeitos indesejáveis. Estes freqüentemente são transitórios, mas podem ocorrer alterações clínicas e laboratoriais que exigem especial atenção e diferentes condutas. Neste artigo, os autores relatam fundamentalmente como proceder diante do comprometimento muscular e hepático, considerados efeitos adversos mais relevantes dos hipolipemiantes. De modo sucinto, apontam os demais efeitos e a respectiva conduta.Hypolipemic drugs improve coronary morbidity and mortality and appear to be safe; nevertheless appropriate monitoring is recommended. Adverse effects are reported that are frequently transitory. Severe adverse effects are infrequent, but clinicians must correctly screen them; symptoms and laboratory changes must be carefully interpreted. Often they call for special treatment and replacement of the hypolipemic drugs in use. This article emphasizes how to treat dyslipidemia if skeletal muscle and liver involvement are present. Briefly other adverse effects are also reported.

Estado laico e interferência religiosa

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Alessandro Pinzani

2015-05-01

Full Text Available http://dx.doi.org/10.5007/1677-2954.2015v14n2p279 O artigo analisa diferentes discursos que, neste momento, estão sendo formulados sobre a religião na esfera pública. Não se falará nele da religião ou das religiões, mas da maneira na qual esses temas são percebidos e discutidos na opinião pública ocidental, em particular europeia, pois essa discussão tem algo relevante para a discussão sobre o papel da religião na sociedade brasileira. Serão considerados três discursos que serão denominados respectivamente de (1 “determinismo cultural”, (2 “anti-religiosidade seletiva” e (3 “laicismo estatal”. A intenção do artigo é apontar para os erros lógicos e categoriais e para as incoerências presentes nesses discursos que dominam o atual debate sobre o lugar da religião em geral e do Islã em particular nas sociedades ocidentais.

Los Hábitos del Pensamiento Critico; Entrevista a John Searle.

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Traducción del Ingles por el Prof. Edison Otero Bello

2007-05-01

Full Text Available El filósofo John Searle continua siendo un voz relevante del debate filosófico actual así como de la discusión sobre la universidad como institución además, es considerado uno de los pensadores mas críticos sobre las nociones de inteligencia artificial actualmente endiscusión. La presente traducción corresponde a la entrevista realizada al filosofo en 1999 por Harry Kreisler en la Universidad de California Berkeley resultando de especial utilidad como una primera aproximación a las ideas centrales del pensamiento de este filosofo.Agradecemos al profesor Edison Otero la oportunidad de publicar esta traducción que se encuentra originalmente como parte del libro “La Universidad Desafiada, el ataque Postmodernista en las Humanidades y las Ciencias Sociales” Universidad Central de Chile yBravo-Allende Editores, 2003, publicación donde se recogen además otros ensayos del autor donde reflexiona críticamente sobre la universidad como institución y su futuro.

Análisis de las discusiones de los estudiantes en una clase de laboratorio sobre el equilibrio químico

Directory of Open Access Journals (Sweden)

Adriana Bertelle

2014-01-01

Full Text Available En este trabajo se estudia las discusiones de los estudiantes de primer ano de dos carreras universitarias, durante la realización de un trabajo practico de laboratorio sobre el tema de equilibrio químico. Se analizan los argumentos que construyen los estudiantes cuando relacionan los datos experimentales y las observaciones con el conocimiento químico que poseen. Se registra en audio y video el trabajo grupal de los mismos mientras desarrollan la clase de laboratorio y como instrumento de análisis se utiliza, el patrón argumentativo de Toulmin. Uno de los aspectos relevantes de las clases analizadas, es que son escasas las discusiones de los estudiantes durante el desarrollo del trabajo de laboratorio y que los mismos no hacen explicita la nocion de sistema en equilibrio que están elaborando. Se puede concluir, en general que el desarrollo del trabajo practico de laboratorio, no aporto a lo que debería contribuir, que es que los estudiantes desarrollen una conceptualizacion mas acabada, de lo que es un sistema en equilibrio químico.

Hodoscope performance and design; Construction et comportement d'un odoscope; Demonstratsiya i konstruktsiya godoskopa; Diseno y caracteristicas de funcionamiento de un hodoscopio

Energy Technology Data Exchange (ETDEWEB)

Boyarski, A; Ritson, D [Massachusetts Institute of Technology, Cambridge, MA (United States)

1962-04-15

The performance and circuitry of a hodoscoped array of 200 counters used on an experiment at Brookhaven is described. The circuitry, transistors, and phototubes all showed remarkable long-term stability. The lifetime of the transistors was 0.5 x 10{sup 8} h, and only one out of the 200 phototubes deteriorated after six months use. A simple set of diagnostic routines checked performance of the apparatus in half an hour. The data was recorded on film, and the film was read with a ''programmed spot'' scanner into the M.I.T. TXO computer. One hour is required to read a 400-ft roll of film by this system. A simple modification has been made to the apparatus whereby the data is stored in parallel into a shift register and then read out serially onto magnetic tape. Such a system writes a 300-bit event on to tape in 1 ms and obviates the necessity for buffer storage. (author) [French] Les auteurs decrivent le comportement et le circuit d'un odoscope de 200 compteurs utilise a l'echelon du laboratoire a Brookhaven. Le circuit, les transistors et les phototubes se sont reveles extremement stables sur une longue periode. Les transistors ont fonctionne 0,5 {center_dot} 10{sup 8} heures et un seul des 200 phototubes a ete endommage apres six mois d'usage. Grace a un programme de controle systematique, on a pu verifier le comportement de l'appareil en une demi-heure. Les donnees ont ete enregistrees sur films et le film a l'aide d'un teledecteur a spot programme dans un calculateur M.I.T. TXO. Ce systeme permet de lire plus de 1,20 m de pellicule en une heure. On a modifie l'appareil d'une maniere simple qui permet de stocker les donnees en parallele dans un registre a decalage et de les lire, par series, sur une bande magnetique. Ce systeme permet d'ecrire un evenement de 300 chiffres binaires sur la bande en un millieme de seconde et d'eviter de recourir a la memoire intermediaire. (author) [Spanish] La memoria describe las caracteristicas de funcionamiento y los

Selection and examination of types of waste relevant to underground disposal. Final report; Auswahl und Untersuchung UTD-relevanter Abfallarten. Abschlussbericht

Energy Technology Data Exchange (ETDEWEB)

Reichelt, C. [GSF - Forschungszentrum fuer Umwelt und Gesundheit Neuherberg GmbH, Braunschweig (Germany). Inst. fuer Tieflagerung; Brasser, T. [GSF - Forschungszentrum fuer Umwelt und Gesundheit Neuherberg GmbH, Braunschweig (Germany). Inst. fuer Tieflagerung; Bahadir, M. [Technische Univ. Braunschweig (Germany). Inst. fuer Oekologische Chemie und Abfallanalytik; Fischer, R. [Technische Univ. Braunschweig (Germany). Inst. fuer Oekologische Chemie und Abfallanalytik; Lorenz, W. [Technische Univ. Braunschweig (Germany). Inst. fuer Oekologische Chemie und Abfallanalytik; Petersen, C. [Technische Univ. Braunschweig (Germany). Inst. fuer Oekologische Chemie und Abfallanalytik

1995-12-31

Kenntnisse ueber den Abfall selbst, die geologisch-hydrogeologischen Verhaeltnisse des Deponieraumes und seiner Umgebung sowie der zukuenftigen Entwicklung des gesamten Deponiesystems. Die Langzeitsicherheit jeder Untertagedeponie (sinngemaess auch jeder sonstigen untertaegigen Verbringung von Stoffen) ist dabei in erster Linie davon abhaengig, ob auf das Wirtsgestein und dei darin abgelagerten Abfaelle Wasser oder waessrige Loesungen einwirken koennen, in welchem Umfang dadurch Umloeseprozesse und/oder eine Schadstoffmobilisierung resultieren koennen und letztlich, ob Beeintraechtigungen der Barrieren sowie eine Ausbreitung von Schadstoffen in der naeheren und weiteren Umgebung einer Untertagedeponie moeglich sind. Hierzu muessen insbesondere die Abfaelle selbst sowie deren Reaktionsvermoegen mit fluiden Komponenten in geologischen Systemen bekannt sein und erforderlichenfalls untersucht und bewertet werden. Der vorliegende Abschlussbericht ist in diesem Zusammenhang als Beitrag zur Schaffung der notwendigen Datenbasis fuer UTD-relevante Abfallarten ausgerichtet. Damit konnten wichtige Aussagen zum Abfallaufkommen selbst und den zu beruecksichtigenden Abfallinhaltsstoffen ermittelt, wie auch eine Abschaetzung deren Gefaehrdungspotentials vorgenommen werden und als Grundlage fuer weiterfuehrende Forschungs- und Entwicklungsarbeiten dienen. (orig./SR)

"Faz isso, faz aquilo, mas eu tô caindo...": compreendendo a Doença de Chron "Haz eso, haz aquello, mas yo estoy cayendo...": comprendiendo la enfermedad de Chron "Do this, do that, but I'm falling down...": understanding Chron's disease

Directory of Open Access Journals (Sweden)

Andrea Castelli

2007-03-01

Full Text Available Buscando compreender o significado e o impacto da doença de Chron na vida de seu portador, desenvolvemos este estudo, de natureza qualitativa, optando pela História Oral de Vida como referencial metodológico, tendo como base filosófica a corrente monista, advinda de Hipócrates, em que a prática médica tem por objeto a pessoa doente em sua totalidade, levando em conta seu temperamento e a sua história. A terapêutica deve restabelecer a harmonia da pessoa com seu ambiente e consigo mesma , trata-se de uma medicina integradora e dinâmica, que corresponde aos primórdios da medicina psicossomática. O estudo da doença de Chron, por meio da compreensão psicossomática, permitiu que analisássemos os sintomas, não como corpos estranhos a serem erradicados, mas como mensageiros de um apelo a ser compreendido. Por intermédio deles, pode ser resgatada a história de um indivíduo que, se conscientemente vivida e analisada, permite o desenvolvimento até níveis mais evoluídos de entendimento.Buscando comprender el significado y el impacto de la Enfermedad de Chron en la vida de su portador, desarrollamos este estudio, de naturaleza cualitativa, optando por la Historia Oral de Vida como referencial metodológico, y teniendo como base filosófica la corriente monista, advenida de Hipócrates, donde la práctica médica tiene por objeto a la persona enferma en su totalidad, teniendo en cuenta su temperamento y su historia. La terapéutica debe restablecer la armonía de la persona con su ambiente y consigo misma y se trata de una medicina integradora y dinámica, que corresponde a los inicios de la medicina psicosomática. El Estudio de la enfermedad de Chron, por medio de la comprensión psicosomática, permitió que analizásemos los síntomas, no como cuerpos extraños a ser erradicados, mas como mensajeros de un apelo a ser comprendido. Por intermedio de ellos, puede ser rescatada la historia de un individuo que, si conscientemente vivida

Protective effects of vitamin E and Cornus mas fruit extract on methotrexate-induced cytotoxicity in sperms of adult mice

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Leila Zarei

2014-03-01

Full Text Available This study was aimed to assess the protective effects of Cornus mas fruit extract (CMFE and vitamin E (Vit E on sperm quality parameters in the methotrexate (MTX-treated mice. Forty-eight young adult male mice (8-12 weeks were randomly divided into six groups including control and test groups. The control group received normal saline orally , and the test groups were treated MTX (20 mg kg-1, ip, once weekly, MTX + CMFE (250 mg kg-1, MTX + CMFE (500 mg kg-1, MTX + CMFE (1000 mg kg-1, and MTX + Vit E (100 IU kg-1, po for 35 consecutive days. On day 35, after euthanasia the epididymal sperms were isolated. Then the total mean sperm count, sperm viability and motility were determined. The total antioxidant capacity (TAOC of all experimental groups were also evaluated. The MTX-treated animals showed a significant changes in all parameters of sperm quality assessment compared to the control group. Both Vit E and CMFE were able to protect from MTX-induced effects on sperm maturity and DNA damage. Co-administration of MTX and CMFE and/or Vit E resulted in protection from MTX-reduced TAOC. In conclusion, these data suggested that MTX administration could adversely affect the sperm quality. Moreover, the protective effect of Vit E and CMFE on MTX-induced sperm toxicity was also documented.

Effects of solvent concentration and composition on protein dynamics: 13C MAS NMR studies of elastin in glycerol-water mixtures.

Science.gov (United States)

Demuth, Dominik; Haase, Nils; Malzacher, Daniel; Vogel, Michael

2015-08-01

We use (13)C CP MAS NMR to investigate the dependence of elastin dynamics on the concentration and composition of the solvent at various temperatures. For elastin in pure glycerol, line-shape analysis shows that larger-scale fluctuations of the protein backbone require a minimum glycerol concentration of ~0.6 g/g at ambient temperature, while smaller-scale fluctuations are activated at lower solvation levels of ~0.2 g/g. Immersing elastin in various glycerol-water mixtures, we observe at room temperature that the protein mobility is higher for lower glycerol fractions in the solvent and, thus, lower solvent viscosity. When decreasing the temperature, the elastin spectra approach the line shape for the rigid protein at 245 K for all studied samples, indicating that the protein ceases to be mobile on the experimental time scale of ~10(-5) s. Our findings yield evidence for a strong coupling between elastin fluctuations and solvent dynamics and, hence, such interaction is not restricted to the case of protein-water mixtures. Spectral resolution of different carbon species reveals that the protein-solvent couplings can, however, be different for side chain and backbone units. We discuss these results against the background of the slaving model for protein dynamics. Copyright © 2015 Elsevier B.V. All rights reserved.

ESTUDIO COMPARATIVO ENTRE DOS ESQUEMAS DE ACUPUNTURA ZUSANLI (E-36), SANYINJIAO (B-6), XUEHAI (B-10), TAICHONG (H-3) VS. MISMO ESQUEMA MAS QUANLIAO (ID-18) EN EL MANEJO DEL DOLOR Y LAS PARESTESIAS EN LA NEUROPATIA DIABETICA

OpenAIRE

VENEGAS CERVANTES, RAFAEL MELQUIADES

2010-01-01

LA NEUROPATIA DIABETICA (ND), COMPLICACION FRECUENTE DE LOS PACIENTES DIABETICOS, SE CARACTERIZA PORQUE EXISTEN ALTERACIONES EN LA PERCEPCION SOMATOSENSITIVA Y A NIVEL CIRCULATORIO (DOLOR, DISESTESIAS, PARESIAS Y PARESTESIAS). EN ESTA INVESTIGACION SE ESTUDIA EL EFECTO DE LA ACUPUNTURA, TANTO EN EL DOLOR, COMO EN LAS ALTERACIONES SENSITIVAS. PARA LO ANTERIOR SE UTILIZARON ACUPUNTOS DE EMPLEO ORDINARIO PARA LA ENFERMEDAD, HACIENDO UN COMPARATIVO CON EL MISMO ESQUEMA DE ACUPUNTOS, MAS LA ...

Psikolojik Sermaye ve Çalışanlar Üzerinde Etkisi: Banka Sektöründe Bir Alan Çalışması

OpenAIRE

YEŞİL, Salih; YETİŞ, Emirhan; TELLİ, Sümeyra

2016-01-01

Bu çalışmanın amacı psikolojik sermayenin çalışanlar üzerinde etkilerini (bilgi paylaşımı, iş tatmini, işten ayrılma eğilimi ve yenilikçi davranış) belirlemeye yöneliktir. Araştırmanın alan çalışması, bir banka çalışanları üzerinde yapılmış, analiz edilmiş ve yorumlanmıştır. Araştırma sonucunda psikolojik sermayenin çalışanlar açısından bilgi paylaşımı, iş tatmini, işten ayrılma niyeti, performans ve yenilikçi davranış üzerinde farklı düzeylerde etkileri olduğu belirlenmiştir. Bu sonuç psiko...

End uses of electric energy in homes of a group of dwellings; Usos finales de la energia electrica en hogares de un conjunto habitacional

Energy Technology Data Exchange (ETDEWEB)

Campero Littlewood, E.; Romero Cortes, J.; Alarcon Maldonado, E.; Silva Oliver, J.; Ortiz Segura, J.; Vargas Rubio, J. [Departamento de Energia, Universidad Autonoma Metropolitana - Unidad Azcapotzalco, Mexico, D. F. (Mexico)

1997-12-31

This paper reports the results of an inquiry conducted to a sample of homes of a group of dwellings. The objective of this inquiry was to know the number of dwellers, the electric household appliances and the type of artificial lighting characteristic of a three-bed room apartment of approximately 65 square meters. In the Introduction is given the information related to the distribution of the monthly consumption of the entire group of dwellings for two separate periods for more than six years, which allows to determine the yearly average rates of growth. The information collected in the inquiry is presented in graphical form of frequency of electric household appliances and the light bulb rating of the more typical electric appurtenances. The results correspond to the answers in 188 inquiries judged reliable (230 questionnaires were delivered to the homes). The analysis of the information allows the knowledge of the electricity consumption capacity that the sampled homes have and to infer the consumption capacity of the entire group of dwellings. [Espanol] En este trabajo se reportan los resultados de una encuesta aplicada a una muestra de hogares en un conjunto habitacional. El objetivo de la encuesta es conocer el numero de habitantes, el equipamiento en electrodomesticos y la iluminacion artificial que caracteriza a un departamento de tres recamaras de aproximadamente 65 m{sup 2}. En la introduccion se suministra la informacion de la distribucion del consumo mensual promedio de toda la unidad habitacional para dos periodos separados por mas de seis anos, lo que permite determinar las tasas promedio anuales de crecimiento. La informacion recopilada en la encuesta se presenta a manera de graficas de frecuencias de los electrodomesticos, de las capacidades de los focos o de las caracteristicas mas importantes de los aparatos electricos. Los resultados corresponden a las respuestas de 188 encuestas declaradas confiables (se entregaron cuestionarios a 230 hogares

End uses of electric energy in homes of a group of dwellings; Usos finales de la energia electrica en hogares de un conjunto habitacional

Energy Technology Data Exchange (ETDEWEB)

Campero Littlewood, E; Romero Cortes, J; Alarcon Maldonado, E; Silva Oliver, J; Ortiz Segura, J; Vargas Rubio, J [Departamento de Energia, Universidad Autonoma Metropolitana - Unidad Azcapotzalco, Mexico, D. F. (Mexico)

1998-12-31

This paper reports the results of an inquiry conducted to a sample of homes of a group of dwellings. The objective of this inquiry was to know the number of dwellers, the electric household appliances and the type of artificial lighting characteristic of a three-bed room apartment of approximately 65 square meters. In the Introduction is given the information related to the distribution of the monthly consumption of the entire group of dwellings for two separate periods for more than six years, which allows to determine the yearly average rates of growth. The information collected in the inquiry is presented in graphical form of frequency of electric household appliances and the light bulb rating of the more typical electric appurtenances. The results correspond to the answers in 188 inquiries judged reliable (230 questionnaires were delivered to the homes). The analysis of the information allows the knowledge of the electricity consumption capacity that the sampled homes have and to infer the consumption capacity of the entire group of dwellings. [Espanol] En este trabajo se reportan los resultados de una encuesta aplicada a una muestra de hogares en un conjunto habitacional. El objetivo de la encuesta es conocer el numero de habitantes, el equipamiento en electrodomesticos y la iluminacion artificial que caracteriza a un departamento de tres recamaras de aproximadamente 65 m{sup 2}. En la introduccion se suministra la informacion de la distribucion del consumo mensual promedio de toda la unidad habitacional para dos periodos separados por mas de seis anos, lo que permite determinar las tasas promedio anuales de crecimiento. La informacion recopilada en la encuesta se presenta a manera de graficas de frecuencias de los electrodomesticos, de las capacidades de los focos o de las caracteristicas mas importantes de los aparatos electricos. Los resultados corresponden a las respuestas de 188 encuestas declaradas confiables (se entregaron cuestionarios a 230 hogares

Efektivitātes pētījums: Ceļu Satiksmes drošības direkcijas sociālās vides reklāmas

OpenAIRE

Vītola, Zanda

2013-01-01

Darba tēma ir „Efektivitātes pētījums: Ceļu Satiksmes drošības direkcijas sociālās vides reklāmas”. Pētījuma problēma – ik gadu palielinās upuru un negadījumu skaits uz Latvijas ceļiem, tāpēc ir svarīgi noskaidrot, cik efektīvas ir CSDD vides reklāmas, lai šo tendenci novērstu. Darba mērķis – noskaidrot sabiedrības viedokli un attieksmi pret CSDD vides reklāmām, atklājot, kā un vai reklāmu vēstījums ietekmē sabiedrību. Darbā izmantota Bārta teorija semiotiskās analīzes izpratnei, Kot...

Elasticidade-preço da demanda por etanol no Brasil: como renda e preços relativos explicam diferenças entre estados

Directory of Open Access Journals (Sweden)

Veronica Fernandez Orellano

2013-12-01

Full Text Available Este artigo estuda a demanda por etanol no Brasil no período 2001-2009, considerando as características regionais de renda e de preços relativos. Essas características explicam variação relevante na elasticidade-preço da demanda, aspecto até então desconsiderado em estudos anteriores. Foi estimado um modelo econométrico a partir de um painel de dados estaduais mensais, no qual variáveis instrumentais foram usadas para controlar a endogeneidade na análise da demanda. Conclui-se que a demanda é mais elástica em estados mais pobres e em que o preço relativo está próximo a 70%, a taxa técnica de substituição entre etanol e gasolina, parâmetro relevante para as decisões de consumo de proprietários de veículos flex-fuel. Essas regiões apresentam maiores elasticidades-preço da demanda, em última análise, por conta de diferenças logísticas e tributárias, as quais definem o preço relativo. Esses resultados diferem daqueles obtidos por Salvo e Huse (2013, pois identificam diferenças regionais que independem da heterogeneidade das preferências dos consumidores, mas decorrem da configuração logística e de renda. Os resultados sugerem implicações para as políticas tributária e de infraestrutura logística, as quais, ao afetarem o nível de preços relativos de etanol e gasolina, afetam a sensibilidade da demanda com relação às variações de preço.

Considerações de custo e valor da informação Notes on cost and value of information

Directory of Open Access Journals (Sweden)

Alceu Souza

2004-01-01

Full Text Available Levantar e analisar as considerações de custo e valor mais relevantes com respeito à informação é o objetivo deste artigo. Os produtos de informação produzidos para o mercado apresentam custos de produção, mas o seu preço pode não ser explícito. Quando são produzidos pelo setor público, envolvem utilização de recursos da sociedade e se torna relevante avaliar benefício coletivo que proporcionam. Três sistemas de custeio: Absorção, Direto e ABC são examinados e avaliados quanto à adequação a organizações ou projetos de informação. Cada um desses sistemas apresenta vantagens e desvantagens. O virtual desconhecimento das estruturas de custos e a falta de estimativas confiáveis dificultam tanto a gestão de empresas de informação quanto a gestão de órgãos públicos encarregados de informar a sociedade.This article aims to identifying and analyzing the relevant issues with respect to information cost and value. The information products offered in the marketplace surely have costs even in the case a price is not explicitly charged. Information products offered by the public sector obviously require society resources for their production and thus it is relevant to assess the collective benefit they yield. Three costing systems are examined and evaluated with respect to their adequacy to information organizations and projects: Absorption, Direct Costing and ABC. Each of these systems presents advantages and disadvantages. Both the enterprises and the public organizations in duty of informing society mostly do not know their cost structure and lack of precise cost estimates. Such a situation means a serious difficulty to the management.

Image Processing of Digital Cartographic Data.

Science.gov (United States)

1982-02-05

lasibases de datas digitales par media de una Estaci6n de Manja de Im~genes. Taznbign trata de la canfiguracio’n de las sistemas , sus cam- ponentes, la...DE IMAGENES DE DATOS CARTOGRAFICOS DIGITALES Desde hace tiempa el cart~graffa ha querido representar las caracteristicas de la superficie terrestre

Variáveis relevantes no processo terapêutico para a aquisição do onset complexo na fala de crianças com desvio fonológico Relevant variables in the therapeutic process for the consonant clusters acquisition in the speech of children with phonological disorder

Directory of Open Access Journals (Sweden)

Vanessa Giacchini

2012-01-01

Full Text Available OBJETIVO: apresentar variáveis relevantes no processo terapêutico de aquisição do onset complexo (OC em crianças que realizam a simplificação dessa estrutura. MÉTODO: participaram do estudo quatro crianças com diagnóstico de desvio fonológico (DF, com idades entre 5:4 a 7:7, que utilizavam a estratégia de alongamento compensatório (EAC, possuíam [r] e [l] no seu inventário fonético e realizavam a simplificação do OC. As crianças foram submetidas a diferentes modelos terapêuticos e, a partir dos dados obtidos nas sondagens, realizaram-se análises das variáveis linguísticas e extralinguísticas relevantes durante o processo terapêutico. A análise dos dados de fala foram realizadas por meio do programa estatístico VARBRUL. RESULTADOS: a variável gravidade do desvio foi a que o programa selecionou como relevante para a produção correta do OC, para sua simplificação e para a distorção da líquida da estrutura. Ele apontou que quando o sujeito é submetido à terapia articulatória (TA, há maior probabilidade de ocorrência de produção correta de CCV, realização de distorção e metátese. O fonema /d/ se mostrou favorecedor da estratégia de metátese. A substituição da líquida foi influenciada pela variável sujeito e pelo tipo de líquida formadora do OC. CONCLUSÃO: quanto às variáveis, a gravidade do DF mostra-se importante tanto para o sucesso da terapia (produção correta de CCV, como para o uso de estratégias de reparo. Observou-se que aplicar tipos de terapia distintos faz com que as crianças respondam de forma diferenciada a cada um deles, com melhor desempenho na TA.PURPOSE: to provide relevant variable aspects in the therapeutic process of consonant clusters (CC acquisition in children but maintains the CCV simplification. METHOD: four children diagnosed with phonological disorders, aged 5:4 to 7:7 took part in the study, using the strategy of compensatory lengthening, having [r] and [l] in the

Initial isotopic geochemistry ({delta} 18 O, {delta} D) of fluids from wells of the Los Humeros, Pue., geothermal field; Geoquimica isotopica ({delta} 18 O, {delta} D) inicial de fluidos de pozos del campo geotermico de Los Humeros, Pue.

Energy Technology Data Exchange (ETDEWEB)

Barragan Reyes, Rosa Maria; Arellano Gomez, Victor Manuel [Instituto de Investigaciones Electricas, Gerencia de Geotermia, Cuernavaca, Morelos (Mexico)]. E-mail: rmb@iie.org.mx; Ramirez Montes, Miguel; Tovar Aguado, Rigoberto [Comision Federal de Electricidad, Gerencia de Proyectos Geotermoelectricos, Morelia, Michoacan (Mexico)

2010-01-15

de Los Humeros estan constituidos de una mezcla de aguas meteoricas de composicion isotopica muy ligera (paleofluidos) y aguas andesiticas. La relacion {delta} D vs {delta} 18 O para datos previos a la explotacion indica que los fluidos producidos estan constituidos por una mezcla de (al menos) dos fluidos de composicion isotopica diferente. En el extremo mas enriquecido de la relacion de mezcla se encontraron las composiciones isotopicas de los pozos H-23 y H-18 (localizados en el sur del campo), mientras que los fluidos mas ligeros se hallaron en el pozo H-16 original y posteriormente en el pozo H-16 reparado. Se encontro que la fase liquida de los pozos profundos se encuentra mas enriquecida en {delta} 18 O mientras que los pozos mas someros muestran valores mas ligeros, perfil que es indicativo de la ocurrencia de un proceso convectivo en el estado inicial. Con base en este perfil isotopico se establece que aunque la profundidad de las zonas productoras de los pozos H-1, H-12 y H-16 reparado son aproximadamente similares, su composicion isotopica es muy diferente. La composicion {delta} 18 O del pozo H-16 reparado parecia ser la de un vapor condensado, mientras que las de los pozos H-1 y H-12 se encontraron dentro del intervalo de valores de los pozos mas profundos (H-23). Esta caracteristica sugiere que los pozos H-1 y H-12 reciben fluidos muy profundos enriquecidos en {delta} 18 O. Estos resultados podrian ser de utilidad en el modelado conceptual del yacimiento.

Modal analysis of electromechanical oscillations in electrical power systems; Analisis modal de oscilaciones electromecanicas en sistemas electricos de potencia

Energy Technology Data Exchange (ETDEWEB)

Calderon-Guizar, J.G [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)]. E-mail: jgcg@iie.org.mx

2008-10-15

The presence of electromechanical oscillations in any electrical power system is a typical characteristic of this kind of systems. Provided the damping associated with these oscillations lies above of a minimum specified value, the occurrence of these oscillations is not considered as a threat to the system operation. This paper focuses the attention on the application of modal analysis for assessing the dynamical behavior of a power system subjected to small disturbances for different operating conditions and transmission system topologies, as well. The reported results indicate, that modal analysis enables a straight identification of the causes that contribute negatively to the damping of the electromechanical modes. [Spanish] La presencia de oscilaciones electromecanicas en cualquier Sistema Electrico de Potencia (SEP) es una caracteristica propia de estos sistemas. Mientras el amortiguamiento asociado con este tipo de oscilaciones se encuentre dentro de los limites considerados como aceptables para la operacion continua de este tipo de sistemas, el surgimiento de estas no se considera una amenaza para la operacion segura del SEP. El presente articulo, centra su atencion en la aplicacion del analisis modal para evaluar el comportamiento dinamico de un SEP ante la ocurrencia de disturbios de magnitud pequena para diferentes topologias y condiciones de operacion. Los resultados reportados indican, que la aplicacion del analisis modal permite la identificacion directa de las causas que contribuyen en forma negativa al amortiguamiento asociado con los modos electromecanicos, asi como la ubicacion mas adecuada de controles que contribuyan a mejorar el amortiguamiento de los mismos.

Cuestiones pendientes en la metodología PIMS: un breve recuento Pending question about the PIMS methodology: a brief account

Directory of Open Access Journals (Sweden)

Rubén M. Mosqueda Almanza

2010-06-01

Full Text Available Se asume que una estrategia adecuada impactara positivamente las ganancias de la empresa y le llevara a expandirse. Recientes descubrimientos sugieren que solo con la revisión y adecuación de los elementos mas relevantes del plan estratégico es posible llevar los resultados económicos de la empresa a un punto optimo. La metodología PIMS (que se traduce como Impacto de la Estrategia de Marketing sobre las Ganancias constituye un modelo para lograrlo, sin embargo, subsisten problemas fundamentales en el mismo modelo que lo limitan. Así, en el presente trabajo se hace un estudio exploratorio y se muestra la evolución de la metodología PIMS lo cual permite desvelar los retos y el posible rumbo del tema. La definición de la estrategia, el diseño de la encuesta tipo PIMS, los problemas de multicolinearidad y el efecto de la participación de mercado se plantean como los mas relevantes. Los resultados muestran la necesidad de definir con precisión la estrategia asumida por la empresa, el rediseño de la encuesta PIMS cuando se aplique a mercados incompletos y finalmente, se advierte un avance en el estudio econométrico sobre la metodología PIMS con énfasis en la variable Calidad Relativa del Producto para resolver el viejo dilema del efecto de la participación de mercado.We can assume that an appropriate strategy will have a positive impact on profits and it will contribute to having a company’s market share grow. Recent findings suggest that only the adaptation of a strategic plan can bring a company to perform at optimum levels. PIMS is an archetypical model to achieve that, but fundamental problems remain that limit it. This paper shows the evolution of the PIMS methodology and reveals its challenges and possible development. The adequate definition of this strategy, the redesign of the questionnaire PIMS, problems of Multicollinearity and the Market Share Effect would be the most relevant problems that this paper will address. The

Conhecimento de Libras pelos Médicos do Distrito Federal e Atendimento ao Paciente Surdo

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Leticia Ferreira Gomes

Full Text Available RESUMO O ensino da Língua Brasileira de Sinais (Libras nas escolas médicas é pouco difundido, e este cenário pode dificultar o atendimento de importante parcela da população: o paciente surdo. De acordo com o Instituto Brasileiro de Geografia e Estatística (IBGE, cerca de 24% da população brasileira tem algum tipo de deficiência, sendo parte de um grupo conhecido como vulneráveis. A surdez está entre as deficiências mais prevalentes, e no contexto do atendimento médico a dificuldade em atender integralmente o paciente surdo constitui um problema de saúde pública relevante, mas pouco abordado. O objetivo do presente estudo foi avaliar o conhecimento de Libras por médicos do Distrito Federal e sua percepção frente ao atendimento de pacientes surdos. Assim, foi realizado um estudo observacional transversal e descritivo com aplicação de questionários a 101 médicos escolhidos ao acaso, atuantes no Sistema Único de Saúde (SUS no Distrito Federal. Foram entrevistados médicos de 24 especialidades, com idade média de 41 anos. Deles, 92,1% já atenderam um paciente surdo e 76,2% consideraram o conhecimento de Libras importante para sua prática médica, mas apenas um relatou conhecimento básico na língua. Quanto ao sentimento do médico no atendimento, houve predomínio de incerteza e desconforto. Um número significativo de médicos já realizou atendimento de pacientes surdos em sua prática profissional no SUS, e a maioria considerou o conhecimento de Libras relevante, especialmente os médicos com menos de 55 anos de idade. Possivelmente, o sentimento de desconforto no atendimento decorre do predominante desconhecimento da língua pelos médicos e da conseguinte dificuldade durante o atendimento. Destaca-se a importância da implantação ou ampliação do estudo de Libras antes ou durante a formação médica e dos demais cursos da área de saúde. A conscientização dos profissionais de saúde perante o atendimento

Numerical design of RNnν symmetry-based RF pulse schemes for recoupling and decoupling of nuclear spin interactions at high MAS frequencies

International Nuclear Information System (INIS)

Herbst, Christian; Herbst, Jirada; Leppert, Joerg; Ohlenschlaeger, Oliver; Goerlach, Matthias; Ramachandran, Ramadurai

2009-01-01

An approach for the efficient implementation of RN n ν symmetry-based pulse schemes that are often employed for recoupling and decoupling of nuclear spin interactions in biological solid state NMR investigations is demonstrated at high magic-angle spinning frequencies. RF pulse sequences belonging to the RN n ν symmetry involve the repeated application of the pulse sandwich {R φ R -φ }, corresponding to a propagator U RF = exp(-i4φI z ), where φ = πν/N and R is typically a pulse that rotates the nuclear spins through 180 o about the x-axis. In this study, broadband, phase-modulated 180 o pulses of constant amplitude were employed as the initial 'R' element and the phase-modulation profile of this 'R' element was numerically optimised for generating RN n ν symmetry-based pulse schemes with satisfactory magnetisation transfer characteristics. At representative MAS frequencies, RF pulse sequences were implemented for achieving 13 C- 13 C double-quantum dipolar recoupling and through bond scalar coupling mediated chemical shift correlation and evaluated via numerical simulations and experimental measurements. The results from these investigations are presented here

Um panorama da literatura relevante sobre Itaipu

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Tomaz Espósito Neto

2013-08-01

The Brazilian-Paraguayan hydroelectric of Itaipu is considered an important milestone in the relations between Brazil and Paraguay, as it has created a permanent bond between the two countries. Nowadays, Itaipu is still one of the most important generators of electric energy in the world, being responsible for over 25 percent of the energy generated in Brazil and about 95 percent of the electricity consumed in Paraguay. The various consequences of the construction of Itaipu, in particular the changes occurred in the power balance structure in Cone Sul are phenomena that have been largely studied, and there is a multiplicity of interpretations on the theme. This paper aims to provide an overview of the relevant literature on Itaipu.

Folikül Büyüklüğü ve Folikül Uyarıcı Hormon Konsantrasyonunun Sığır Oositlerinin İn Vitro Nükleer Olgunlaşması Üzerine Etkisi

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Uğur Şen

2015-05-01

Full Text Available Bu çalışma folikül büyüklüğü ve folikül uyarıcı hormon (FSH konsantrasyonunun sığır oositlerinin in vitro nükleer olgunlaşması üzerine etkisini araştırmak amacıyla yapılmıştır. Sığır ovaryumundaki (87 adet foliküller küçük (

Acceleration of natural-abundance solid-state MAS NMR measurements on bone by paramagnetic relaxation from gadolinium-DTPA

Science.gov (United States)

Mroue, Kamal H.; Zhang, Rongchun; Zhu, Peizhi; McNerny, Erin; Kohn, David H.; Morris, Michael D.; Ramamoorthy, Ayyalusamy

2014-07-01

Reducing the data collection time without affecting the signal intensity and spectral resolution is one of the major challenges for the widespread application of multidimensional nuclear magnetic resonance (NMR) spectroscopy, especially in experiments conducted on complex heterogeneous biological systems such as bone. In most of these experiments, the NMR data collection time is ultimately governed by the proton spin-lattice relaxation times (T1). For over two decades, gadolinium(III)-DTPA (Gd-DTPA, DTPA = Diethylene triamine pentaacetic acid) has been one of the most widely used contrast-enhancement agents in magnetic resonance imaging (MRI). In this study, we demonstrate that Gd-DTPA can also be effectively used to enhance the longitudinal relaxation rates of protons in solid-state NMR experiments conducted on bone without significant line-broadening and chemical-shift-perturbation side effects. Using bovine cortical bone samples incubated in different concentrations of Gd-DTPA complex, the 1H T1 values were calculated from data collected by 1H spin-inversion recovery method detected in natural-abundance 13C cross-polarization magic angle spinning (CPMAS) NMR experiments. Our results reveal that the 1H T1 values can be successfully reduced by a factor of 3.5 using as low as 10 mM Gd-DTPA without reducing the spectral resolution and thus enabling faster data acquisition of the 13C CPMAS spectra. These results obtained from 13C-detected CPMAS experiments were further confirmed using 1H-detected ultrafast MAS experiments on Gd-DTPA doped bone samples. This approach considerably improves the signal-to-noise ratio per unit time of NMR experiments applied to bone samples by reducing the experimental time required to acquire the same number of scans.

Importance of the validation of saving technologies of electric power; Importancia de la validacion de tecnologias ahorradoras de energia electrica

Energy Technology Data Exchange (ETDEWEB)

Valer Negrete, Adrian [Programa de Ahorro de Energia del Sector Electrico (PAESE), Comision Federal de Electricidad (Mexico)

2003-07-01

Within the Programs of Energy Saving it is fundamental the search and application of new technologies, with which this saving can be obtained, selected with base in their technical characteristics that allow to reduce to the consumptions and demands of power, without damaging the electric networks nor the transformers of the Comision Federal de Electricidad. It is important that the investments which are made count on attractive periods of capital recovery, in comparison with the useful life of the product, reason why the knowledge and price of the new technologies will be parameters to consider in an important manner, creating the need of conducting tests that verify the veracity of the information of the supplier, resulting in certain cases, the change of design of these technologies, so that thus they fulfill the engaged characteristics. This paper indicates the characteristics that the new saving technologies of electrical energy must fulfill and the tests and parameters to consider their evaluation. [Spanish] Dentro de los Programas de Ahorro de Energia es fundamental la busqueda y aplicacion de nuevas tecnologias, con las que se pueda obtener dicho ahorro, seleccionadas con base en sus caracteristicas tecnicas que permitan reducir los consumos y demandas de potencia, sin danar las redes ni transformadores de la Comision Federal de Electricidad. Es importante que las inversiones que se realicen cuenten con periodos de recuperacion de capital atractivos, comparados con la vida util del producto, por lo que el conocimiento y precio de las nuevas tecnologias seran parametros a considerar de manera importante, creandose la necesidad de realizar pruebas que verifiquen la veracidad de la informacion del proveedor, resultando en determinados casos, el cambio de diseno de dichas tecnologias, para que asi cumplan las caracteristicas prometidas. Este trabajo indica las caracteristicas que deben cumplir las nuevas tecnologias ahorradoras de energia electrica y las

Support open access publishing

DEFF Research Database (Denmark)

Ekstrøm, Jeannette

2013-01-01

Projektet Support Open Access Publishing har til mål at få opdateret Sherpa/Romeo databasen (www.sherpa.ac.uk/romeo) med fagligt relevante, danske tidsskrifter. Projektet skal endvidere undersøge mulighederne for at få udviklet en database, hvor forskere på tværs af relevante tidsskriftsinformati......Projektet Support Open Access Publishing har til mål at få opdateret Sherpa/Romeo databasen (www.sherpa.ac.uk/romeo) med fagligt relevante, danske tidsskrifter. Projektet skal endvidere undersøge mulighederne for at få udviklet en database, hvor forskere på tværs af relevante...

Complementary analyses to interpret profiles of 2{sup 10}Pb; Analisis complementarios para interpretar perfiles de {sup 210}Pb

Energy Technology Data Exchange (ETDEWEB)

Ruiz-Fernandez, Ana Carolina [Universidad Nacional Autonoma de Mexico, Instituto de Ciencias del Mar y Limnologia (Mexico); Mulsow, Sandor [Universidad Austral de Chile (Chile)

2012-07-01

The coastal zone is highly dynamic, subject to processes that often cause disturbances in the sedimentary record. These processes have varied origins: physical, chemical and biological. Because of this feature of the coastal area we suggest improving the quality of dating and estimated accumulation rates through the study of some of the many features expressed in the sedimentary record. Below are some ancillary techniques that can improve the quality of the interpretation of the profile of {sup 210}Pb{sub ex}. [Spanish] La zona costera es un medio altamente dinamico, sujeta a procesos que frecuentemente causan perturbaciones en el registro sedimentario. Estos procesos tienen origenes variados: fisicos, quimicos y biologicos. Debido a esta caracteristica del area costera sugerimos mejorar la calidad del fechado y las estimaciones de las tasas de acumulacion a traves del estudio de algunas de las muchas caracteristicas expresadas en los registros sedimentarios. A continuacion describimos algunas tecnicas auxiliares que pueden mejorar la calidad de la interpretacion del perfil de {sup 210}Pb{sub ex}.

X ve Y Kuşağı: Hemşirelerin Meslek Dayanışması İle İş Doyumu Arasındaki İlişki

OpenAIRE

KARASU, Fatma; AYLAZ, Rukuye

2017-01-01

Amaç:Bu araştırma, X ve Y kuşağındaki hemşirelerin meslek dayanışması ile iş doyumuarasındaki ilişkisini belirlemek amacıyla yapılmıştır. Gereç ve Yöntem: Kesitsel nitelikteki araştırmanın evrenini devlethastanesinde çalışan hemşireler oluşturmuş, örneklem seçimine gidilmeyerekevrenin tamamı örnekleme dahil edilmiş ve 01.02.2017-01.03.2017 tarihleriarasında çalışmayı kabul eden toplamda 145 hemşireye ulaşılmıştır. Veri toplamaformunda, hemşirelerin sosyo-demografik özellikleri, Hemşirelerde M...

Angiotensina-(1-7 durante o processo inicial na cascata da ovulação em bovinos Angiotensin-(1-7 during the initial process of ovulatory cascade in cattle

Directory of Open Access Journals (Sweden)

Joabel Tonellotto dos Santos

2012-10-01

Full Text Available O presente estudo teve como objetivo avaliar o efeito da Ang-(1-7 e de seu receptor (MAS na regulação da ovulação. No experimento I, utilizando um modelo in vitro de cultivo de células foliculares, foi avaliado o efeito do tratamento com Ang-(1-7 ou do bloqueio do receptor MAS através do inibidor d-Ala7-Ang-(1-7 (A-779 na expressão de RNAm para epirregulina (Ereg; um marcador inicial do processo de ovulação em células da granulosa. No experimento II, foi utilizado um modelo in vivo de injeção intrafolicular no qual vinte vacas tiveram o ciclo estral sincronizado e, quando os folículos atingiram um diâmetro mínimo de 12mm, foi realizada a injeção intrafolicular de A-779 ou solução salina 0,9%. No momento da injeção intrafolicular, foi realizada uma aplicação IM de análogo de GnRH. A suplementação com Ang-(1-7 ou o bloqueio de seu receptor MAS em sistema de cultivo de células da granulosa não alteraram o padrão de expressão de RNAm para Ereg. A aplicação intrafolicular de A-779 (10-5M não bloqueou a ovulação quando realizada antes do início do pico esperado de LH (100% das vacas ovularam nos grupos A-779 e controle, sugerindo que a Ang-(1-7 não possui papel relevante no início da cascata ovulatória em bovinos.This study aimed to evaluate the effect of Ang-(1-7 and its receptor (MAS in the regulation of the ovulatory cascade. In the experiment I, the effect of Ang-(1-7 or d-Ala7-Ang-(1-7 (A-779; Ang-(1-7 antagonist on the epirregulin (Ereg; initial marker of ovulation process mRNA expression in granulosa cells was assessed using an in vitro model of follicular cell culture. In experiment II, it was used an in vivo intrafollicular injection model, in which twenty cows had their follicular waves synchronized and the ovarian follicular size was daily monitored by ultrasound. Follicles that reached a minimum diameter of 12mm were injected with A-779 or saline 0.9%. At the time of the intrafollicular injection

Linear capacity storage devices; Memoires lineaires a condensateurs; Linejnye kondensatornye nakopitel'nye ustrojstva; Dispositivos de almacenamiento de condensador, con caracteristicas lineales

Energy Technology Data Exchange (ETDEWEB)

Brovchenko, V G [Ordena Lenina Institut Atomnoj Ehnergii Imeni I.V. Kurchatova AN, SSSR (Russian Federation)

1962-04-15

reste pratiquement constant lorsque la tension du condensateur varie. La penthode a une forte resistance interne; il s'ensuit qu'apres le passage de l'impulsion incidente le courant qui traverse la penthode est presque egal a la valeur initiale, et la charge accumulee par le condensateur se trouve maintenue. La duree de la memoire est limitee par les valeurs de la resistance a la sortie de la generatrice et de la penthode haute frequence. Pour augmenter la duree de la memoire, on peut placer une diode devant le condensateur. (author) [Spanish] En esta memoria se examina el problema de la linealidad del almacenamiento de datos en circuitos de almacenamiento con condensador. Se describen dos circuitos de almacenamiento de respuesta lineal dentro de una amplia gama de amplitudes de las senales de salida. En uno de los circuitos la senal de error se mide con un amplificador diferencial. Gracias al elevado factor de amplificacion, el aparato funciona con caracteristicas sensiblemente lineales. El otro circuito esta disenado para trabajar con impulsos de una duracion del orden del nanosegundo. Los impulsos de entrada de anchura normal cierran el circuito de un pentodo en cuyo anodo se halla el condensador que actua como ''memoria''. Como el condensador se carga desde el anodo por medio de un generador, la intensidad de corriente de carga permanece casi constante aunque la tension del condensador varie durante la medicion. El pentodo tiene una gran resistencia interna, de modo que al terminar el impulso de entrada, la corriente que atraviesa el pentodo tiene casi la misma intensidad que al principio, quedando asi almacenada la carga acumulada por el condensador. La duracion de la ''memoria'' esta limitada por los valores de la resistencia de salida del generador de corriente y por la resistencia interna R{sub i} del pentodo. Para prolongar la duracion de la ''memoria'' se puede colocar un diodo delante del condensador. (author) [Russian] Rassmatrivayutsya voprosy linejnosti

Aspectos Relevantes de la Organización del Poder Judicial Español: Selección y Formación de Jueces, la Reforma de la Secretaria Judicial y la Figura del Secretario Judicial

Directory of Open Access Journals (Sweden)

Daniel Polignano Godoy

2015-12-01

Full Text Available El presente artículo, a fin de contribuir a los estudios sobre la política judicial, la gestión y la administración de la justicia en Brasil, ofrece una visión general de algunos aspectos relevantes de la organización del Poder Judicial español a saber, la selección y formación de los magistrados, la reforma de la secretaria judicial y la figura del secretario judicial, que son temas de interés actual en vista de las similitudes socio-culturales y jurídicas, y la coincidencia entre los problemas que enfrentan los poderes judiciales de Brasil y España. Aunque no contenga una sugestión de "importación" de soluciones acríticas extranjeras, propone una profundización del estudio de estos puntos, con el fin de evaluar los posibles impactos positivos que tuvieron en el caso español y verificar si no serían medidas interesantes a aplicarse en el escenario brasileño, especialmente en el caso de la secretaria judicial, cuya función consiste en aliviar el juez de la gestión de la unidad administrativa y de trabajos "burocráticos", para centrarse en la función judicial, al mismo tiempo en que permitiría la centralización y la especialización de la gestión y del trabajo administrativo.

Healthcare benefits linked with Below Poverty Line registration in India: Observations from Maharashtra Anaemia Study (MAS [version 1; referees: 2 approved

Directory of Open Access Journals (Sweden)

Anand Ahankari

2017-01-01

Full Text Available A 2015 Lancet paper by Patel et al. on healthcare access in India comprehensively discussed national health programmes where some benefits are linked with the country’s Below Poverty Line (BPL registration scheme. BPL registration aims to support poor families by providing free/subsidised healthcare. Technical issues in obtaining BPL registration by poor families have been previously reported in the Indian literature; however there are no data on family assets of BPL registrants. Here, we provide evidence of family-level assets among BPL registration holders (and non-BPL households using original research data from the Maharashtra Anaemia Study (MAS.   Social and health data from 287 pregnant women and 891 adolescent girls (representing 1178 family households across 34 villages in Maharashtra state, India, were analysed. Several assets were shown to be similarly distributed between BPL and non-BPL households; a large proportion of families who would probably be eligible were not registered, whereas BPL-registered families often had significant assets that should not make them eligible. This is likely to be the first published evidence where asset distribution such as agricultural land, housing structures and livestock are compared between BPL and non-BPL households in a rural population. These findings may help planning BPL administration to allocate health benefits equitably, which is an integral part of national health programmes.

The Douro estuarine plume: Detection, processes and dynamics =

Science.gov (United States)

Mendes, Renato Paulo dos Santos

importante na regiao proxima a embocadura do estuario. Observaram-se relacoes a uma escala interanual entre a turbidez da pluma e os indices climaticos East Atlantic e NAO, com uma correlacao maxima identificada com 1 e 3 meses de desfasamento, respetivamente. Com base nos resultados das simulacoes efetuadas, a pluma e classificada como de larga escala e de advecao superficial, apresentando caracteristicas de uma pluma prototipica. Em condicoes de caudal moderado a elevado, a descarga estuarina e suficiente para gerar uma corrente costeira para norte sem acao do vento. Em eventos de ventos leste, a propagacao da pluma e similar ao caso sem vento, com um aumento da velocidade da corrente. Uma corrente costeira para sul e unicamente identificada sob condicoes de forte vento de oeste. Ventos de norte tendem a estender a pluma para o largo, com uma inclinacao na direcao sudoeste, enquanto ventos de sul intensificam a corrente para norte, sendo a mistura das plumas do Douro e do Minho uma consequencia possivel. A analise desta interacao apontou a contribuicao do Douro como importante na estabilizacao da WIBP e nas trocas de agua entre o oceano e as Rias Baixas. A interacao da pluma do Douro com estuarios localizados a sul da sua foz e a confirmacao in situ da recirculacao observada nos resultados numericos afiguram-se como temas relevantes para investigacoes futuras. None

Mineralogical and micro-thermometric features of the Los Humeros geothermal reservoir, Pue., Mexico; Caracteristicas mineralogicas y microtermometricas del yacimiento geotermico de Los Humeros, Pue., Mexico

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Izquierdo, Georgina; Arellano, Victor M; Aragon, Alfonso [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)]. E-mail: gim@iie.org.mx

2008-07-15

Studies on many topics have been undertaken during the exploratory and exploitation stages of the development of Los Humeros geothermal field. From a geochemical and mineralogical view-including hydrothermal mineralogy and fluid-inclusion micro-thermometry, features have been reported differing from those observed in other geothermal fields. Sometimes this has led to ambiguous conclusions. Studies of fluid-inclusion micro-thermometry have shown low-salinity and high-temperature fluids, suggesting a slight temperature decrease in the deepest portion associated with a boiling process rather than a cooling process. In 1998, Arellano et al. performed a multi-disciplinary study and proposed the existence of at least two, distinct reservoirs at depth. Mineralogical data from wells drilled at the Colapso Central zone tend to support this idea. However wells drilled in the zone known as Corredor Mastaloya seemingly show evidence of a single reservoir. [Spanish] Durante las etapas de exploracion y explotacion del campo geotermico de Los Humeros se han realizado diversos estudios cubriendo distintos topicos. Desde el punto de vista geoquimico y mineralogico (mineralogia hidrotermal y microtermometria de inclusiones fluidas) se han reportado comportamientos diferentes a los observados en otros campos del mundo, los que en ocasiones han llevado a conclusiones imprecisas. La microtermometria de inclusiones fluidas ha mostrado fluidos poco salinos de alta temperatura, asi como una ligera disminucion de temperatura en la parte profunda la cual se asocia a un proceso de ebullicion mas que a un enfriamiento del sistema. En 1998 Arellano et al realizaron un estudio multidisciplinario proponiendo la existencia de al menos dos reservorios. La informacion mineralogica de pozos perforados en la zona del Colapso Central fortalece esta propuesta. Sin embargo, para pozos localizados en la zona conocida como Corredor Mastaloya se tiene evidencia de lo que parece ser un solo yacimiento.

Generator 113{sup S}n-113m{sup I}n. Study of the most important characteristics in the evaluate composition for the preparation of clinical labelled compounds; Generador de 113{sup S}n- 113m{sup I}n. Estudio de las caracteristicas mas relevantes en la composicion del eluido con miras a la obtencion de compuestos marcados de aplicacion clinica

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Adan, L; Rebollo, D V

1978-07-01

The design for the construction of a generator 113{sup S}n -113m{sup l}n is described. A systematic assay for de adequate adsorbents has been made, to obtain solutions of high radiochemical purity, as it is required for the radiopharmaceutical preparations. The control of purity is carried on by qualitative and quantitative analysis of the solutions, complemented by radiochemical techniques. The following physico-chemical parameters has been determinate; consecutive equilibrium constants, pH, distribution constants, separation factors and electrophoretic factors. It has been considered the measure of these parameters for the best quality In the preparation of the radiopharmaceutical compounds. (Author) 53 refs.

Thomas Piketty e "O Capital no Século XXI": da economia política à Sociologia contemporânea

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Bernardo Caprara

Full Text Available Resumo O tema da desigualdade tem uma larga tradição de análise nas Ciências Sociais. Até o final do século XX, a desigualdade econômica ocupava boa parte dessas discussões. De lá para cá, as desigualdades passaram a ser vistas como multidimensionais, mas permanece relevante o estudo da distribuição desigual de renda, riqueza e capital. A obra "O Capital no Século XXI", do economista francês Thomas Piketty, publicada em 2013, na França, e em 2014, no Brasil, envereda por esse caminho e ilumina novas indagações sobre a atualidade e os rumos da desigualdade econômica. Esta resenha crítica objetiva apresentar as principais contribuições do autor para o debate público e acadêmico. Além disso, ambiciona refletir sobre uma agenda para a Sociologia atual, desde a importância de entender como ocorre a gênese e a legitimação da reprodução das desigualdades de oportunidades no nosso tempo.

GOVERNAMENTALIDADES NEOLIBERAIS E DISPOSITIVOS DE SEGURANÇA

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Flávia Cristina Silveira Lemos

2015-08-01

Full Text Available Este artigo visa a realizar um debate teórico por meio das análises de Michel Foucault e de Robert Castel, entre outros, a respeito dos mecanismos de segurança e das estratégias de governamentalidade neoliberal, na sociedade contemporânea. Os cursos Em defesa da sociedade, Segurança, território e população e Nascimento da Biopolítica, de Foucault, inauguraram uma discussão relevante a respeito dos racismos de Estado e de sociedade, de seus paradoxos, nas democracias, e de seus efeitos a partir da emergência do neoliberalismo norte-americano e alemão, após a II Guerra Mundial, que foram difundidos em outros países, sobretudo na década de noventa do século XX, com especificidades em cada país, mas com pontos de conexão que nos permitem traçar um diagrama da sociedade de segurança e de como ela opera por táticas de governo das condutas, também denominadas governamentalidades, por Foucault.

A inércia estrutural da base produtiva brasileira: o IDE e a transferência internacional de tecnologia

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TULIO CHIARINI

2016-06-01

Full Text Available RESUMO O que pode explicar o fato de ter havido uma entrada maciça de IDE no Brasil e ter-se mantido uma inercial estrutural na base produtiva nacional? Existe uma série de fatos macroeconômicos que podem ajudar a explicar essa inércia, como a baixa taxa de investimento e a falta de ordenação dos preços-chave da economia (como taxas de juros e taxa de câmbio, mas a proposição aqui feita é que existe um problema microeconômico estrutural relevante: falta de aptidão tecnológica das empresas industriais brasileiras. Para analisar tal proposição parte-se da separação entre os tipos de IDE (greenfield, fusão e aquisição e 'em carteira' e os tipos de canais de transferência de tecnologia (horizontal e vertical. A partir de elementos empíricos e históricos constrói-se o argumento de que a falta de aptidão tecnológica é elemento-chave no entendimento da perda de dinamismo da indústria nacional.

Os sites de notícias podem estimular a deliberação online? Um estudo dos comentários de leitores postados no Folha.com

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Rafael Cardoso Sampaio

2012-12-01

Full Text Available Este artigo avalia a deliberação em comentários de leitores no website do jornal Folha de S. Paulo. Para tanto, foram analisados 260 posts relacionados a quatro histórias: a prisão de José Roberto Arruda, Governador do Distrito Federal; o acordo sobre energia nuclear entre Brasil e Irã; o plano de Direitos Humanos e o golpe contra o presidente de Honduras, Manuel Zelaya. Além dos comentários, foram analisados o site do jornal, suas ferramentas discursivas e o posicionamento político dos participantes. Concluiu-se que houve uma deliberatividade relevante nas discussões analisadas, mas também ocorreu excessiva agressividade entre os participantes. Com relação aos comentários postados, pode-se afirmar que a maioria dos participantes buscou a vitória no debate ao invés da compreensão mútua. No final, o artigo considera como lidar normativamente com essa agressividade e tenta mostrar como há certo potencial para aumentar os valores democráticos através do fornecimento de ferramentas discursivas por sites de notícias.

Inmunología de los peces óseos. Revisión

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Miguel Rubio-Godoy

2010-01-01

Full Text Available Los peces óseos poseen sistemas inmunitarios capaces de llevar a cabo respuestas humorales y celulares tanto innatas como específicas; esencialmente, los sistemas defensivos de los peces teleósteos tienen los mismos componentes que los de los mamíferos, a quienes anteceden evolutivamente. En esta revisión se describen los componentes de los sistemas inmunitarios de los teleósteos, enfatizando las particularidades presentes en los peces mas no en los mamíferos, cuyos sistemas defensivos se conocen en mayor detalle. El estudio de la inmunología de los peces es relevante para fines tanto básicos como aplicados. Por la vertiente básica, es importante para comprender el origen y la evolución del sistema inmunitario de los vertebrados superiores. Por la vertiente aplicada, a pesar de que hay algunas vacunas comerciales para proteger peces de interés comercial contra algunas bacterias y virus, ampliar el conocimiento del sistema inmunitario de estos organismos permitiría incrementar la productividad e inocuidad de la acuacultura, mediante el desarrollo de nuevos métodos de estimulación inmunitaria y vacunación eficaces.

Skinner: sobre ciência e comportamento humano

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Angelo Augusto Silva Sampaio

Full Text Available Atualmente, não se pode pensar no estudo do comportamento humano sem considerar a abordagem científica a este objeto: o campo da Psicologia científica. Esse campo é disputado por diversos enfoques teóricos que divergem quanto ao modo como definem ciência e comportamento humano. A abordagem de B. F. Skinner foi bastante proeminente no século XX, mas ainda continua a ser mal-entendida. Partindo do desenvolvimento histórico de sua obra, o presente texto visa a iluminar alguns aspectos relacionados às noções de ciência e comportamento humano desse autor e ressaltar as transformações por que passaram. Analisam-se três tópicos da obra de Skinner: seu período inicial (de 1930 a cerca de 1938, a obra "Ciência e Comportamento Humano" de 1953, e as influências da Biologia. São enfatizados aspectos relevantes da sua teorização sobre o tema: busca por relações funcionais, ênfase nos dados empíricos, operacionismo, externalismo, multideterminação do comportamento, experimentalismo, previsão e controle, ética.

MARCA EXPORTADA É MELHOR DO QUE UMA APENAS LOCAL?UM ESTUDO EXPLORATÓRIO COM MULHERES EM SÃO PAULO

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VIVIAN STREHLAU

2007-01-01

Full Text Available As marcas brasileiras de biquínis gozam de boa imagem na Europa e Estados Unidos, mas pouco se sabe como isso vem afetando a compra dentro do país. A pesquisa procurou identificar os principais fatores que influenciam a escolha das maiores marcas exportadoras de biquíni por mulheres jovens e mais especificamente se existe valor percebido quanto à marca ser exportada. Esse artigo está apoiado em pesquisa exploratória quantitativa baseada em questionários fechados, aplicados junto a 179 mulheres na faixa etária entre 18 e 35 anos, das classes AB, consideradas as maiores consumidoras. Utilizou-se o método de amostragem não probabilístico, com amostra por conveniência. Uma análise de natureza quantitativa com o uso de SPSS permitiu identificar que a marca exportada influencia positivamente a decisão de compra e que os fatores mais relevantes na compra de um biquíni, obtidos através de análise fatorial são: o lado fashion, o mais importante, seguido por design, modelo e conforto.

Pressupostos educacionais e estatísticos do Ideb

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José Francisco Soares

2013-09-01

Full Text Available O Índice de Desenvolvimento da Educação Básica (Ideb assume que as escolas devem ser avaliadas não só pelos seus processos de ensino e gestão ou pelos recursos disponíveis, mas também pelo aprendizado de seus alunos sobre as capacidades básicas e pela sua trajetória escolar. O primeiro objetivo deste artigo é, através da descrição dos algoritmos do Ideb, explicitar sua concepção de qualidade e de equidade de escolas. Isso permite identificar os efeitos diretos e indiretos que seu uso induz nas escolas e que reorientam suas políticas e práticas, buscando sua maximização. Em seguida, mostra-se que algumas opções feitas na sua concepção têm consequências indesejáveis. Diante disso, o artigo traz sugestões de aperfeiçoamento, junto com propostas de mudanças na forma de divulgação e uso, que tornam o Ideb mais relevante pedagogicamente.

O COMÉRCIO DE MANUFATURADOS E O DESENVOLVIMENTO ECONÔMICO: POR QUE SE PREOCUPAR COM A TRAJETÓRIA BRASILEIRA?

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Claudia Maria Sonaglio

2011-12-01

Full Text Available Diante da crescente importância que o Brasil vem ganhando no cenário internacional e das prerrogativas de tornar o país a quinta economia mundial em um horizonte ‘breve’ de tempo, esse artigo buscou analisar o comportamento do setor industrial e do comércio externo. Seguindo a perspectiva Kaldoriana de desenvolvimento, o setor industrial é considerado o ‘motor’ do crescimento econômico, o que torna relevante a discussão sobre a trajetória desse segmento. Entre os principais resultados deste estudo, destaca-se que o setor industrial vem perdendo representatividade no produto interno e no emprego total da economia, o que caracteriza um processo de desindustrialização. Porém, o processo instaurado não parece ser fruto da maturidade econômica, cenário em que a indústria perde espaço naturalmente para o setor de serviços, mas sim fruto, de um contexto de sobreapreciação cambial e de ‘reprimarização’ da pauta de exportações.

Caracteristicas distintivas en la gestion del servicio educativo

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Horacio V. Barreda Tamayo

2007-12-01

Full Text Available La gestión de la producción del Servicio Educativo, -que incluye la Educación Superior- es um proceso muy complejo. Tiene características muy particulares, que invalidan cualquier intento de aplicación directa de los modelos y teorías de gestión empresarial vigentes. Para una real gestión educativa, todavía no existe una definición clara sobre el perfil de competencias de los egresados. Que vienen a ser los “productos esperados”, después del “proceso de producción” del servicio educativo universitario. Por otro lado, hay varios modelos de gestión educativa. Pero no existe un modelo propio para la gestión del servicio educativo; que es básicamente um Servicio Profesional. Además, se cuenta con diferentes enfoques pedagógicos, últimamente correlacionados al avance de las TIC’s y los nuevos descubrimientos sobre el sistema cognitivo de las personas. Casi la totalidad de Proyectos y Planes Educativos, contienen objetivos, metas y “resultados” totalmente cualitativos. Que sólo reflejan los buenos deseos de lo que se quiere en nuestros egresados, pero que no se pueden medir objetivamente en cuanto a su consecución. Como decía J. Harrington: “Si usted no puede medir lo que hace, no puede controlarlo. Si no puede controlarlo, no puede dirigirlo. Si no puede dirigirlo, no puede mejorarlo”. En el presente artículo, queremos resaltar algunas características y requisitos para la “gestión de la producción” del servicio educativo. Los cuales debemos tener presentes, cuando pretendemos mejorar los resultados de la Educación.

Caracteristicas distintivas en la gestion del servicio educativo

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Horacio V. Barreda Tamayo

2007-01-01

La gestión de la producción del Servicio Educativo, -que incluye la Educación Superior- es um proceso muy complejo. Tiene características muy particulares, que invalidan cualquier intento de aplicación directa de los modelos y teorías de gestión empresarial vigentes. Para una real gestión educativa, todavía no existe una definición clara sobre el perfil de competencias de los egresados. Que vienen a ser los “productos esperados”, después del “proceso de producción” del servicio educativo univ...

"Auge y Caída de la Masonería en México en el Siglo XIX. La Exclusión de la Mujer bajo la mirada del Discurso Masónico de Laureana Wright González"

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Carlos Francisco MartÌnez Moreno

2012-01-01

La masonerÌa femenina en MÈxico fue efÌmera en el siglo XIX, surgiÛ con el apoyo de masones varones comprometidos con la educaciÛn de la mujer y su emancipaciÛn del dogma catÛlico, que no lograron emanciparse de los dogmas masÛnicos incoherentes con el progreso que decÌan defender; que por presiones de la masonerÌa internacional optaron por el conservadurismo de sus normas antes que perder el reconocimiento de la masonerÌa regular, con lo que...

Promoção da saúde, qualidade de vida e iniquidade em saúde: reflexões para a saúde pública.

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Aline Rodrigues de ALMEIDA

2016-01-01

Full Text Available A ideia de promover saúde tem se tornado uma energia fundamental no movimento de saúde coletiva, no qual saúde é um fenômeno social e marcado por iniquidades. Este trabalho teve como objetivo compreender as relações entre promoção da saúde e iniquidades de acesso e assistência em saúde, identificandoos entraves para uma prática equânime da saúde pública com ênfase à qualidade de vida. Os diferentes perfis de doença e suas mediações sociais ultrapassam os estudos de variação biológica e incorpora o foco na dimensão social das vulnerabilidades. Para promover saúde no Brasil, é indissociável do enfrentamento de uma realidade de iniquidades históricas de grandes proporções que impõem desafios cotidianos não apenas ao setor de saúde, mas a todos aqueles que constroem políticas públicas. A qualidade de vida depende da satisfação das necessidades básicas de todos os cidadãos, propondo uma gestão baseada na solidariedade social, uma visão holística dos problemas e a redução das iniquidades. A promoção da saúde em um país tão desigual como o Brasil propõe um desafio constante aos atores envolvidos no sistema de saúde. A compreensão das iniquidades em saúde para estabelecer uma assistência holística é um processo difícil, mas extremamente relevante para a saúde pública.

PROSPEÇÃO TECNOLOGICA: ACESSÓRIOS DE VEDAÇÃO PARA GARRAFAS DE VINHO

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Fátima Regina Zan

2016-03-01

Full Text Available A produção, circulação e comercialização  de vinhos e derivados da uva no Brasil é regulamentada pela Lei 7678/88, alterada pela Lei 10970/04, para adequar-se ao Regulamento Vitivinícola do Mercosul.  As tampas e rolhas são acessórios indispensáveis para o armazenamento do vinho. A  prospecção, ou seja, a busca  de patentes depositadas de rolhas e tampas de garrafas foi realizada através do levantamento das informações patentárias na base do Escritório Europeu de Patentes (European Patent Office - Espacenet, e no banco de dados do Instituto Nacional de Propriedade Industrial (INPI do Brasil. O  maior produtor de cortiça para a fabricação de rolhas é Portugal, e não possuí patentes depositadas. Assim como  também não possuem depósitos de patentes os países da América latina que produzem  vinho.  Os depósitos vêm sendo realizados desde o ano de 1902, mas entre os anos de 1995 e 1998, é que se constatou o maior número de patentes.   O problema causado pelo uso de rolhas ou tampas é relevante, mas em relação ao volume das patentes depositadas, percebe-se que muito pouco vem sendo registrado nas bases de certificação de patentes, sendo necessária a implementação de inovações tecnológicas, pois  o mercado de vinhos encontra-se em expansão e a substituição da cortiça, é uma necessidade.

Programa de actividades recreativas comunitarias para la ocupación del tiempo libre de los adolescentes pertenecientes a la Circunscripción No. 34 del Consejo Popular “Ceferino Fernández” del Municipio Pinar del Río

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Arturo Aguilar Hernández

2009-12-01

Full Text Available Las características comunitarias de cada sector se hacen saber a partir de los principales acontecimientos cognoscitivos y psíquicos, puestos en prácticas después en las diferentes vivencias Y representan además un vínculo positivo. La intervención comunitaria, se ha impuesto en nuestros días como una necesidad, pues el desarrollo comunitario en gran medida implica el desarrollo social. Los estudios acerca del empleo del tiempo libre ocupan un lugar significativo en la investigaciones debido a la importancia económica de los productos y servicios consumibles y la satisfacción de las crecientes necesidades de la población y en un sentido mas general, al relevante papel que desempeña el correcto empleo del tiempo libre como el elemento importante en la formación de la personalidad del hombre nuevo. Estas transformaciones se manifiestan en todos los aspectos del modo de vida y provocan cambios en los hábitos, cultura e ideología de las masas acerca de cómo emplear su tiempo libre en otras actividades de su gusto y preferencia cuestiones estas que se carecen en la comunidad objeto de investigación lo cual provoca un grupo de manifestaciones de carácter negativo en los adolescentes propiciando a su vez transformaciones sociales de carácter individual y colectivo. En este sentido es imprescindible el estudio de la ocupación de la población para dotar a su tiempo libre de un contenido cada vez mas rico implementado por el desarrollo de las actividades físicas recreativas de manera sana propiciando un estilo de vida saludable capaz de transformar diferentes patrones de conducta relacionados con su personalidad.

La encuesta de presupuestos familiares 1973-74

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Alonso-Colmenares, María Dolores; Lara, Ana; Ruiz-Castillo, Javier

1991-01-01

En este trabajo se describe la construcción y el contenido de una serie de ficheros sobre los gastos, los ingresos, el ahorro y las caracteristicas geognificas, demograficas y socioecon6micas de los hogares espaiioles residentes en viviendas familiares. La fuente de informaci6n es la Encuesta de Presupuestos F amiliares realizada por el INE en 1973-74

Programacion funcional y lambda cálculo

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Jonatan Gómez Perdomo

1998-05-01

Full Text Available En la primera parte de este artículo se explican algunos conceptos de los lenguajes de programación, haciendo énfasis en las caracteristicas y propiedades de los lenguajes de programación funcional. En la segunda, se realiza una introducción al lambda cálculo puro, su notación, axiomas y reglas elementales.

Conceptuaciones de los estudiantes de las facultades de educacion y ciencias naturales de la Universidad de Puerto Rico, recinto de Rio Piedras, acerca de la ciencia y la pseudociencia

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Reyes Medina, Hector A.

Esta investigacion describe las conceptuaciones de los estudiantes de tercer ano o mas a nivel de bachillerato de los programas de Educacion en Ciencia y Ciencias Naturales de la Universidad de Puerto Rico, Recinto de Rio Piedras, acerca de lo establecido en la literatura para distinguir el conocimiento cientifico de las creencias pseudocientificas. Este estudio se guio por un diseno tipo encuesta transversal que permitio conocer de manera consistente las conceptuaciones de los estudiantes encuestados acerca de la Ciencia y la Pseudociencia. Ademas, permitio desarrollar inferencias estadisticas relacionadas a la poblacion de estudio, sus conceptuaciones y su inclinacion teorica en torno al Realismo y al Racionalismo cientifico moderados. El instrumento utilizado fue el Cuestionario acerca de las concepciones de la ciencia y la pseudocienca en estudiantes universitarios, Reyes (2015). Este cuestionario fue validado mediante la recopilacion de diversas fuentes de evidencias, entre estas se encuentran las evidencias basadas en el contenido, el proceso de respuesta, la estructura interna y de constructo. Tambien, se calculo el Alfa de Crombach para la escala total y para cada componente y se realizo un analisis de factores que demostro la presencia de seis componentes claramente definidos de acuerdo a lo esperado sobre las caracteristicas originales del instrumento. Las estadisticas utilizadas fueron descriptivas. Participaron 302 alumnos, de las facultades de educacion y ciencias naturales. Se encontro que las conceptuaciones de los estudiantes de ambas facultades se inclinan en un 66.2% a favor con lo establecido en el modelo teorico en torno al Realismo y al Racionalismo cientifico moderados. Sin embargo, aun hay un 33.8% de los estudiantes de ambas facultades que poseen conceptuaciones distintas al modelo teorico propuesto.

Experiences in transferring the techniques for the economical conduction of the Mexico`s vehicular transport; Experiencias de la transferencia de las tecnicas de conduccion economica en el autotransporte en Mexico

Energy Technology Data Exchange (ETDEWEB)

Garcia Osorio, Francisco Javier [Comision Nacional para el Ahorro de Energia, Mexico, D. F. (Mexico)

1996-12-31

The Comision Nacional para el Ahorro de Energia (CONAE) (National Commission for Energy Conservation) developed the training program that through the dictation of pilot courses of technical-economical conduction of auto-motor vehicles is addressed to private enterprises, agencies and governmental institutions. This paper presents the background and the obtained results of the same. This methodology is presented in detail and a description of the courses is also presented as well as its characteristics. The comparative results are annexed of the tests between the conduction normally performed and the technical-economical conduction. The fuel saving obtained varies from 9% to 22.5%. Then, the reasons why the training in the technical- economical conduction results in one of the actions more profitable in fuel saving are explained, but also the difficulties for its implementation are also discussed. A conclusion is offered. [Espanol] La Comision Nacional para el Ahorro de Energia (CONAE) desarrollo el programa de capacitacion que a traves de la imparticion de cursos pilotos de conduccion tecnico- economica de vehiculos automotores, se dirige a las empresas privadas, dependencias e instituciones gubernamentales. En este trabajo se presentan los antecedentes y resultados obtenidos del mismo. Se detalla esta metodologia y se presenta una descripcion de los cursos y sus caracteristicas. Se anexan resultados comparativos de las pruebas entre la conduccion que se realiza normalmente y la conduccion tecnico-economica. Los ahorros de combustible obtenidos van desde 9% hasta 22.5%. Luego, se explican las razones por las que la capacitacion en conduccion tecnico-economica resulta ser una de las acciones mas rentables del ahorro de combustibles, pero tambien se discuten las dificultades para implantarla. Se ofrece una conclusion.

Experiences in transferring the techniques for the economical conduction of the Mexico`s vehicular transport; Experiencias de la transferencia de las tecnicas de conduccion economica en el autotransporte en Mexico

Energy Technology Data Exchange (ETDEWEB)

Garcia Osorio, Francisco Javier [Comision Nacional para el Ahorro de Energia, Mexico, D. F. (Mexico)

1997-12-31

The Comision Nacional para el Ahorro de Energia (CONAE) (National Commission for Energy Conservation) developed the training program that through the dictation of pilot courses of technical-economical conduction of auto-motor vehicles is addressed to private enterprises, agencies and governmental institutions. This paper presents the background and the obtained results of the same. This methodology is presented in detail and a description of the courses is also presented as well as its characteristics. The comparative results are annexed of the tests between the conduction normally performed and the technical-economical conduction. The fuel saving obtained varies from 9% to 22.5%. Then, the reasons why the training in the technical- economical conduction results in one of the actions more profitable in fuel saving are explained, but also the difficulties for its implementation are also discussed. A conclusion is offered. [Espanol] La Comision Nacional para el Ahorro de Energia (CONAE) desarrollo el programa de capacitacion que a traves de la imparticion de cursos pilotos de conduccion tecnico- economica de vehiculos automotores, se dirige a las empresas privadas, dependencias e instituciones gubernamentales. En este trabajo se presentan los antecedentes y resultados obtenidos del mismo. Se detalla esta metodologia y se presenta una descripcion de los cursos y sus caracteristicas. Se anexan resultados comparativos de las pruebas entre la conduccion que se realiza normalmente y la conduccion tecnico-economica. Los ahorros de combustible obtenidos van desde 9% hasta 22.5%. Luego, se explican las razones por las que la capacitacion en conduccion tecnico-economica resulta ser una de las acciones mas rentables del ahorro de combustibles, pero tambien se discuten las dificultades para implantarla. Se ofrece una conclusion.

PERCEPCIÓN DEL RIESGO EN RELACIÓN CON CAPACIDADES DE AUTOPROTECCIÓN Y AUTOGESTIÓN, COMO ELEMENTOS RELEVANTES EN LA REDUCCIÓN DE LA VULNERABILIDAD EN LA CIUDAD DE LA SERENA

Directory of Open Access Journals (Sweden)

Carmen Paz Castro Correa

2012-01-01

Full Text Available Así como la concepción del riesgo y su terminología han variado en el tiempo, la perspectiva disciplinar de su abordaje también ha cambiado. Enfoques derivados de las ciencias naturales, aplicadas y sociales no permiten aún generar una teoría consistente y coherente del riesgo, difi cultando una gestión efectiva que facilite su estimación e intervención desde una perspectiva multidisciplinar. Asimismo, el riesgo no puede considerarse solamente de forma objetiva cuando se busca su reducción dada las múltiples interpretaciones y perspectivas de los distintos actores sociales que confl uyen. La percepción social del riesgo se presenta como uno de los factores relevantes en el ámbito de los riesgos naturales, pues permite incorporar estas subjetividades pudiendo encontrar soluciones más realistas a los desastres. El presente trabajo evalúa esta componente para la ciudad de La Serena, IV Región de Coquimbo, mediante su relación con el nivel socioeconómico, factores de autoprotección y capacidad de autogestión, respecto de la amenaza de tsunami propiciada por la sismicidad en un país como Chile, considerado mundialmente el más sísmico del mundo, al ubicarse en la zona de subducción y deslizamiento de las Placas de Nazca y Sudamericana. Se observa una clara segregación de los estratos socioeconómicos, en los distritos La Compañía Alta e Intendencia, encontrando zonas con mayor vulnerabilidad. Los resultados indican que la percepción de riesgo está relacionada con aspectos sociales, corroborando entonces el carácter social que posee el riesgo.

Activation of mas-related G-protein-coupled receptors by the house dust mite cysteine protease Der p1 provides a new mechanism linking allergy and inflammation.

Science.gov (United States)

Reddy, Vemuri B; Lerner, Ethan A

2017-10-20

Cysteine and serine proteases function via protease-activated and mas-related G-protein-coupled receptors (Mrgprs) to contribute to allergy and inflammation. Der p1 is a cysteine protease and major allergen from the house dust mite and is associated with allergic rhinitis and allergic asthma. Der p1 activates protease-activated receptor 2 and induces the release of the pro-inflammatory cytokine IL-6 from cells. However, the possibility that Der p1 acts on Mrgprs has not been considered. We report here that ratiometric calcium imaging reveals that Der p1 activates the human receptor MRGPRX1 and the mouse homolog MrgprC11, implicated previously in itch. Der p1 cleavage of N-terminal receptor peptides followed by site-directed mutagenesis of the cleavage sites links receptor activation to specific amino acid residues. Der p1 also induced the release of IL-6 from heterologous cells expressing MRGPRX1. In summary, activation of Mrgprs by the allergen Der p1 may contribute to inflammation. © 2017 by The American Society for Biochemistry and Molecular Biology, Inc.

Identificação dos fatores relevantes na decisão da alocação dos recursos econômicos visando um trânsito seguro

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Érico Veras Marques

2010-12-01

Full Text Available A municipalização do trânsito no Brasil, a partir do final da década de 1990, transformou o município em um importante agente social no cenário contemporâneo da educação no trânsito. A expansão das receitas dos órgãos executivos de trânsito coloca em pauta novos desafios de atuação do município, exigindo maior profissionalismo na aplicação dos recursos arrecadados, num contexto social que espera que os municípios produzam e transpareçam resultados efetivos de suas ações. Diante desta realidade, a possibilidade de se identificarem os fatores capazes de traduzir a complexa problemática de aplicação dos recursos arrecadados dos órgãos executivos de trânsito não é uma tarefa simples. A maioria das iniciativas para isso acaba falhando, principalmente pela multiplicidade de aspectos a serem considerados na abordagem do problema. Muitas vezes são omitidos ou desprezados os aspectos que deveriam ser contemplados, resultando em simplificações que acabam por produzir estruturas de avaliação incapazes de representar a realidade do processo. O presente estudo propõe-se a identificar os fatores relevantes na tomada de decisão para aplicação dos recursos arrecadados com multas de trânsito, a partir das visões dos diversos especialistas de trânsito e dos gestores de órgãos executivos de trânsito das capitais brasileiras. A identificação desses fatores foi possível a partir da utilização da Técnica Delphi, a qual foi realizada através de sete rodadas de entrevistas com 12 especialistas e aplicação de um questionário junto aos gestores de 10 das maiores capitais do pais. O produto final da pesquisa foi a construção da estrutura hierárquica desses fatores e suas respectivas dimensões.

Ceļojumu aģentūru angļu un krievu valodas reklāmas materiālos lietotās valodas īpatnības

OpenAIRE

Eglīte, Andžela

2008-01-01

Modernās ceļojumu pasaules sfērā reklāma spēlē ievērojamāko lomu tās komunikatīvo līdzekļu dēļ. Reklāmu lieto, lai informētu un lai ietekmētu attieksmi starp klientiem. Ceļojumu aģentūrām ir daudz iespēju, kur ieguldīt reklāmai paredzēto marketinga budžetu, tomēr tādus publicētos marketinga materiālus kā žurnāli, katalogi, brošūras uzskata par izplatītākajiem, efektīvākajiem un populārākajiem. Šajā bakalaura darbā apskatītas ceļojumu aģentūru angļu un krievu valodas reklāmas materiālos lietot...

ASPECTOS RELEVANTES DA EMPRESA INDIVIDUAL DE RESPONSABILIDADE LIMITADA

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Cezar Verbicaro Moreira PAIS

2014-02-01

Full Text Available This paper aims the analysis of the main aspects ofthe law 12.441/2011, which introduced the Individual Limited Liability Company to the Brazilian legislation, through the Civil Code of 2002. Inspired by the foreign law, the EIRELI created a new legal entity that enables the creation of a LLC by an individual entrepreneur. However, the dimness of the law 12.441/2011 brought differing interpretations to the practical application of the institution. Considering the challenges imposed by the new law, by the bills that aim its reform, by the Constitutional Suit that questions the validity of its requirements and by the imminence of a new business law codification, it’s considered necessary to analyze the practical feasibility of this new institution in Corporate Law.

Desarrollo y análisis del sector cooperativas. Estudio de un caso práctico

OpenAIRE

Herrero Enrique, Maite

2015-01-01

El trabajo intenta plasmar la importancia de las cooperativas, la necesidad de tener unas leyes y una contabilidad adecuada a sus caracteristicas. Para que se entienda mejor la parte teórica, se estudia el caso de una cooperativa en concreto, el "EL CONSORCIO PROMOCIÓN DEL OVINO" Departamento de Economía Financiera y Contabilidad Grado en Administración y Dirección de Empresas

Investigaciones relevantes en el Instituto de Hematología e Inmunología en la década 2000-2009 Relevant researches in the Institute of Hematology and Immunology during 2000-2009

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Rosa M. Lam-Díaz

2011-03-01

Full Text Available A partir de la creación en 1966 del Instituto de Hematología e Inmunología (IHI, se abrieron nuevas perspectivas para el desarrollo e integración de estas especialidades en Cuba. Con el decursar de los años, estas posibilidades se han ido haciendo realidad y se han aportado diversos resultados que han permitido incrementar en nuestro país, los conocimientos sobre diferentes aspectos vinculados con estas especialidades. En el IHI se hace una selección periódica de los temas priorizados de investigación y con estos se confeccionan los planes de investigación a corto, mediano y largo plazo. Sobre esta base, en la última década se han establecido los objetivos priorizados y se han seleccionado los resultados científico-técnicos más relevantes. El presente artículo muestra la relación de estos resultados y describe la contribución de cada uno de ellos al desarrollo científico-técnico alcanzado por la institución durante la década 2000-2009.From the creation in 1996 of the Institute of Hematology and Immunology (IHI new perspectives were opened for the development and integration of theses specialties in Cuba. In the course of time, these possibilities became reality yielding different features linked to these specialties. In the IHI a periodic selection is made of the priority subjects of research and with its use the short, medium and long-term research plans are designed. On this base during the past decade have been established the priority objectives and the more relevant scientific-technical results have been selected describing the contribution of each to scientific-technical development for our institution during 2000-2009.