Self-rated ability to follow instructions for four mental states described in yoga texts

Raghavendra Bhat Ramachandra,Shirley Telles,Nagendra Rama Rao Hongasandra 셀메드 세포교정의약학회 2012 TANG Vol.2 No.3

There were no studies available measuring the ability to follow instructions for meditation. Hence, the present study was planned to assess the ability to follow instructions for the four mental states viz., cancalata (random thinking), ekagrata (non-meditative concentration), dharana (focused meditation) and dhyana (defocused meditation or effortless meditation) described in yoga texts. Sixty male volunteers with ages ranging from 18 to 31 years (group mean age ± S.D., 22.78 ± 2.73) participated in the study. They were assessed using a visual analog scale immediately after each of the four states on four different days. The results showed that following dharana, scores on the visual analog scale were significantly lower compared to those related to cancalata, ekagrata and dhyana. Hence, dharana is the most difficult of the four states.

An Algorithm to Obtain Boat Engine RPM from Passive Sonar Signals Based on DEMON Processing and Wavelets Packets Transform

Guillermo Kemper,David Ponce,Joel Telles,Christian del Carpio 대한전기학회 2019 Journal of Electrical Engineering & Technology Vol.14 No.6

The detection of the engine rotational speed in revolutions per minute (RPM) is of great importance to estimate the speed of boats. This value can be obtained from the fundamental frequency component of acquired sonar signals. However, detection can often be seriously afected by noise and distortion introduced by the underwater environment. Several methods have been proposed for fundamental component detection, but they do not specifcally take advantage of the passive sonar signal characteristics to improve the performance of the process. In this context, the proposed algorithm uses DEMON processing applied to wavelets packets subbands to exploit the characterization of the sonar signal in the time and frequency domains. The algorithm involves signal segmentation, wavelet packet decomposition, subband envelope cross-correlation and fundamental component detection from the power spectrum. The method was applied in passive sonar signals acquired in navigation and also obtained by simulation. The performance of the proposed algorithm was evaluated with signals of diferent SNR values that were also corrupted by a simulated multipath underwater channel. The signals were evaluated by both the experienced sonar operators and the proposed algorithm. The results obtained were very satisfactory for RPM detection and are detailed at the end of this document.

Elastodynamic analysis by a frequency-domain FEM-BEM iterative coupling procedure

Soares, Delfim Jr.,Goncalves, Kleber A.,de Faria Telles, Jose Claudio Techno-Press 2015 Coupled systems mechanics Vol.4 No.3

This paper presents a coupled FEM-BEM strategy for the numerical analysis of elastodynamic problems where infinite-domain models and complex heterogeneous media are involved, rendering a configuration in which neither the Finite Element Method (FEM) nor the Boundary Element Method (BEM) is most appropriate for the numerical analysis. In this case, the coupling of these methodologies is recommended, allowing exploring their respective advantages. Here, frequency domain analyses are focused and an iterative FEM-BEM coupling technique is considered. In this iterative coupling, each sub-domain of the model is solved separately, and the variables at the common interfaces are iteratively updated, until convergence is achieved. A relaxation parameter is introduced into the coupling algorithm and an expression for its optimal value is deduced. The iterative FEM-BEM coupling technique allows independent discretizations to be efficiently employed for both finite and boundary element methods, without any requirement of matching nodes at the common interfaces. In addition, it leads to smaller and better-conditioned systems of equations (different solvers, suitable for each sub-domain, may be employed), which do not need to be treated (inverted, triangularized etc.) at each iterative step, providing an accurate and efficient methodology.

Light Quality on the In Vitro Growth and Production of Pigments in the Genus Alternanthera

Andressa Reis,Alitcia Moraes Kleinowski,Fátima Rosane Schuquel Klein,Renata Trevizan Telles,Luciano do Amarante,Eugenia Jacira Bolacel Braga 한국작물학회 2015 Journal of crop science and biotechnology Vol.18 No.5

In tissue culture, several chemical and physiological factors can influence the production of secondary metabolites. The growth response and increased secondary metabolite production generated by a high irradiance environment, can be used to determine a favorable habitat for the growth and conservation of medicinal plants. Thus, the present study aimed to evaluate the influence of light quality on growth and production of secondary metabolites in Alternanthera sessilis (L.) R. Br. ex DC. (sessile joyweed), Alternanthera philoxeroides (Mart.) Grisebach (alligatorweed), Alternanthera tenella Colla (joyweed), and Alternanthera brasiliana (L.) Kuntze (Brazilian joyweed) plants cultured in vitro. The species were grown in MS medium, for 45 days in different light qualities (blue, white, and red). Growth parameters and biochemical analysis were performed at the end of the study. The results show that the red light allowed a higher accumulation of biomass in most species; red and white light were great inductors for the production of betacyanin and the blue light favored the enhancement of flavonoids. In this manner, the quality of light can affect the betacyanin, betaxanthin, and flavonoid biosynthesis as well as growth patterns in the related Alternanthera species. Based on the data presented, we suggest that specific genes can encode the pigment production according to the light quality which exhibit distinct activation patterns in different plant species.

THE OCCURRENCE AND GEOLOGICAL SETTING OF CRETACEOUS DINOSAURS, MOSASAURS, PLESIOSAURS, AND TURTLES FROM ANGOLA

Louis L. Jacobs,Octavio Mateus,Michael J. Polcyn,Anne S. Schulp,Miguel Telles Antunes,Maria Luisa Morais,Tatiana da Silva Tavares 한국고생물학회 2006 고생물학회지 Vol.22 No.1

아프리카 사하라 지역에 척추동물화석을 배태한 백악기 지층의 노출은 매우 적다. 왜냐하면 대륙의 상당 부분을 선캄브리아기 변성암 육괴가 넓게 분포하고 있을 뿐 아니라 젊은 시대의 지층들과 식물들이 이들 백악기 지층을 덮고 있기 때문이다. 그러나 백악기 해성층과 육성층이 넓게 발달한 지역이 앙골라 해안과 내륙 사이에서 발견되었다. 앙골라의 주변부는 곤드와나 대륙이 갈라지면서 남대서양이 확장되는 것과 관련되어 형성되었다. 백악기 퇴적층은 해양지각의 덮고 있어 시대는 매우 제한적이며 가장 오래된 지층은 지자기대 (magnetozone) M3 (대략 128Ma, Barremian) 보다 오래되지 않았다. 얕은 해양퇴적 환경은 해안가에 드러나 있지만 내륙으로 점점 육성퇴적 환경이 증가한다. 상어화석이외에는 앙골라에서 척추화석이 거의 발견되지 않았었다. 예외적인 화석은 앙골라 북부에서 산출된 후기 Turonian 모사사우루스 Angolasaurus bacagei와 Tylosaurus iembeensis이다. 이들 화석은 가장 초창기에 진화된 모사사우루스들이기 때문에 중요하다. 최근 야외조사를 통해 새로운 Angolasaurus의 머리뼈뿐만 아니라 상어, 물고기, 수장룡, 새로운 거북의 머리뼈, 앙골라에서는 처음 발견되는 용각류의 앞다리가 발견되었다. 앙골라 남부에는 백악기에서 팔레오세 경계까지 퇴적된 해양퇴적층이 발견된다. Vertebrate-bearing fossiliferous outcrops of Cretaceous age in sub-Saharan Africa are rare because of younger superficial deposits, vegetation cover, and the widespread occurrence of Precambrian metamorphic plateau basement comprising much of the continent. However, one area of extensive marine and nonmarine Cretaceous exposures is found between the plateau and the coast in Angola. The Angolan margin was formed in conjunction with the breakup of Gondwana and subsequent growth of the South Atlantic. Cretaceous deposits are constrained in age by the emplacement of oceanic crust, which began no later than magnetozone M3 (approximately 128 Ma, Barremian). Shallow marine facies are exposed in sea cliffs but equivalent facies become increasingly terrestrial inland. Few vertebrate fossils have been described from Angola aside from sharks. Notable exceptions are the late Turonian mosasaurs Angolasaurus bocagei and Tylosaurus iembeensis from northern Angola. Those taxa are significant because they are among the earliest derived mosasaurs. Recent field work led to the discovery of a new skull of Angolasaursus as well as sharks, fish, plesiosaurs, the skull of a new taxon of turtle, additional mosasaurs, and the articulated forelimb of a sauropod dinosaur, the first reported dinosaur from Angola. In southern Angola, marine sediments spanning the Cretaceous-Paleogene boundary are found.

A general tangent operator applied to concrete using a multi-surface plasticity model

Ana Beatriz C.G. Silva,Jose Claudio F. Telles,Eduardo M.R. Fairbairn,Fernando Luiz B. Ribeiro 사단법인 한국계산역학회 2015 Computers and Concrete, An International Journal Vol.16 No.2

The present paper aims at developing a method to accommodate multi-surface concrete plasticity from the point of view of a consistency concept applied to general tangent operators. The idea is based on a Taylor series expansion of the actual effective stress at the stress point corresponding to the previous accumulated true stresses plus the current increment values, initially taken to be elastic. The proposed algorithm can be generalized for any multi-surface criteria combination and has been tested here for typical cement-based materials. A few examples of application are presented to demonstrate the effectiveness of the multi-surface technique as used to a combination of Rankine and Drucker-Prager yield criteria.

Soil Management Systems on Annual Crops in Brazil: Figures from the 2006 Agricultural Census

Tiago Pellini,Rafael Fuentes Llanillo,Dimas Soares Junior,Tiago Santos Telles 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

Effect of Glutamine, Glutamic Acid and Nucleotides on the Turnover of Carbon (δ¹³C) in Organs of Weaned Piglets

Amorim, Alessandro Borges,Berto, Dirlei Antonio,Saleh, Mayra Anton Dib,Telles, Filipe Garcia,Denadai, Juliana Celia,Sartori, Maria Marcia Pereira,Luiggi, Fabiana Golin,Santos, Luan Sousa,Ducatti, Carl Asian Australasian Association of Animal Productio 2016 Animal Bioscience Vol.29 No.8

Morphological and physiological alterations occur in the digestive system of weanling piglets, compromising the performance in subsequent phases. This experiment aimed at verifying the influence of glutamine, glutamate and nucleotides on the carbon turnover in the pancreas and liver of piglets weaned at 21 days of age. Four diets were evaluated: glutamine, glutamic acid or nucleotides-free diet (CD); containing 1% glutamine (GD); containing 1% glutamic acid (GAD) and containing 1% nucleotides (ND). One hundred and twenty-three piglets were utilized with three pigs slaughtered at day zero (weaning day) and three at each one of the experimental days (1, 2, 4, 5, 7, 9, 13, 20, 27, and 49 post-weaning), in order to collect organ samples, which were analyzed for the ${\delta}^{13}C$ isotopic composition and compared by means of time. No differences were found (p>0.05) among treatments for the turnover of the $^{13}C$ in the pancreas ($T_{50%}$ = 13.91, 14.37, 11.07, and 9.34 days; $T_{95%}$ = 46.22, 47.73, 36.79, and 31.04 days for CD, GD, GAD, and ND, respectively). In the liver, the ND presented accelerated values of carbon turnover ($T_{50%}=7.36$ and $T_{95%}=24.47days$) in relation to the values obtained for the GD ($T_{50%}=10.15$ and $T_{95%}=33.74days$). However, the values obtained for the CD ($T_{50%}=9.12$ and $T_{95%}=30.31days$) and GAD ($T_{50%}=7.83$ and $T_{95%}=26.03days$) had no differences (p>0.05) among other diets. The technique of $^{13}C$ isotopic dilution demonstrated trophic action of nucleotides in the liver.

Are home-based exercises effective to reduce blood pressure in hypertensive adults? A systematic review

Gabriel Dias Rodrigues,Ligia Soares Lima,Nicole Cristine Simões da Silva,Paula Gomes Lopes Telles,Teresa Mell da Mota Silva Rocha,Victor Quintella de Aragão Porto,Viviane Veloso Cardoso,Pedro Paulo da 대한고혈압학회 2022 Clinical Hypertension Vol.28 No.-

Sedentarism and chronic non-communicable diseases have been a worldwide health problem that is drastically exacerbated by the COVID-19 pandemic social impacts. Home-based exercises are widely encouraged during social isolation to counterbalance the physical inactive impacts. Although, in the context of hypertension, are home-based exercises effective in blood pressure controlling? Our objective is to conduct a systematic review of high-quality controlled trials comparing the possible effects of different types of home-based exercises in hypertensive patients. The literature search was carried out in three scientific databases: Medline, Europe PMC, and Lilacs. Articles were included following three criteria: analyzing the effect of home-based exercise programs on blood pressure in treated and untreated hypertensive patients; exercises must perform at home and on the frequency, intensity, time, and type (FITT) principle, and the articles were published in English. From the qualitative analysis of 27 original trials screened through 451 identified studies, the main results are the following: 1) both endurance, isometric strength, and respiratory home-based exercise programs were efficient to decrease blood pressure in hypertensive patients; 2) differences in methodological approaches regarding FITT components, distinct blood pressure values at baseline and specific underlying mechanisms must be considered as a potential bias of each home-based interventions. In conclusion, endurance, isometric strength, and breathing home-based programs seems to be effective to reduce blood pressure in hypertensive patients. However, further randomized controlled trials and mechanistic studies must be performing to guide evidence-based recommendations of home-based exercises as antihypertensive therapy.

Modeling refractory concrete lining of fluid catalytic cracking units of oil refineries

Ana B.C.G. Silva,Henrique C.C. Andrade,Eduardo M.R. Fairbairn,Jose C.F. Telles,Fernando L.B. Ribeiro,Romildo D. Toledo-Filho,Jorivaldo Medeiros 사단법인 한국계산역학회 2020 Computers and Concrete, An International Journal Vol.25 No.1

This work presents a numerical modeling procedure to simulate the refractory concrete lining in fluid catalytic cracking units of oil refineries. The model includes the simulation of the anchors that reinforce the contact between the refractory concrete and the steel casing. For this purpose, the constitutive relations of an interface finite element are set to values that represent the homogenized behavior of the anchored interface. The parameters of this constitutive relation can be obtained by experimental tests. The model includes also multi-surface plasticity, in order to represent the behavior of the refractory concrete lining. Since the complexity of real case applications leads to high computational costs, the models presented here were implemented in a high-performance parallelized finite element platform. A case study representing a riser similar to the ones used by the refinery industry demonstrates the potential of the model.