bluuebunny/crossref_metadata_2025 huggingface dataset:
Learning and Memory Effects of Neonatal Methamphetamine Exposure in Sprague-Dawley Rats: Test of the Role of Dopamine Receptors D1 in Mediating the Long-Term Effects
Authors: Jablonski Sarah A. , Williams Michael T. , Vorhees Charles V.
Published: June 2019

Methamphetamine (MA) abuse is a worldwide issue that produces health and cognitive effects in the user. MA is abused by some women who then become pregnant and expose their developing child to the drug. Preclinical rodent models demonstrate cognitive deficits following developmental MA exposure, an effect observed in children exposed to MA in utero. To determine if the dopamine receptor D1 (DRD1) is involved in the learning and memory deficits following MA exposure, male Sprague-Dawley rats were treated 4 times daily at 2 h intervals with 0 (saline) or 10 mg/kg of MA from postnatal day (P)6–15, 30 min after 0.5, 1.0, or 2.0 mg/kg SCH23390. Cincinnati water maze testing began on P30, and the high dose of SCH23390 blocked the learning deficits induced by MA with no effect from the lower doses. Morris water maze (MWM) learning deficits following MA were not protected by SCH23390, although there was a non-dose dependent effect in the acquisition phase. Locomotor deficits induced by MA were reversed by all doses of SCH23390. There were no effects of MA on criterion to trial passive avoidance. Taken together, these data show that behaviors that are dependent on the striatum are better protected with the DRD1 antagonist during MA treatment than the hippocampally mediated spatial learning in the MWM. This suggests that multiple mechanisms exist for the deficits induced by neonatal MA administration.
Decreased Circulating Levels of Asprosin in Obese Children
Authors: Long Wenjun , Xie Xuemei , Du Caiqi , Zhao Yue , Zhang Cai , Zhan Di , Li Zhuxi , Ning Qin , Luo Xiaoping
Published: June 2019

Background: Circulating asprosin is a newly discovered adipokine that triggers the release of hepatic glucose stores and increases appetite. Asprosin levels are elevated in adult obese men as well as in mice, and reductions in asprosin protect against the hyperinsulinism associated with metabolic syndrome in mice with diet-induced obesity, which indicates a potential therapeutic role of asprosin in obesity and type 2 diabetes. Objectives: Few data on asprosin in children are available, which is why this study aimed to assess concentrations of fasting asprosin, as well as its relationship to parameters of glucose and lipid metabolism, in children. Methods: Data on clinical and metabolic parameters were collected from 40 healthy normal-weight and 47 obese children. Circulating asprosin levels were measured using an ELISA. Results: The concentrations of fasting asprosin were lower in the obese children (9.24 ± 4.11 ng/mL) than in the normal-weight controls (12.33 ± 4.18 ng/mL, p < 0.001). When comparing the two groups by sex, both the boys and the girls showed similar trends. In within-group comparison, the asprosin levels were lower in boys than in girls only in the obese group (8.13 ± 4.10 vs. 10.61 ± 3.78 ng/mL, p = 0.013) but not in the control group. Interestingly, asprosin was correlated with ALT after adjusting for age and sex in all participants; in boys, asprosin was correlated with BMI, HOMA-IR, insulin, and HDL after adjusting for age. Conclusions: Concentrations of asprosin were significantly lower in obese children than in normal-weight children, and there was a gender difference in asprosin concentration. Our results suggest a complex role for asprosin in energy metabolism.
Distal versus Proximal Middle Cerebral Artery Occlusion: Different Mechanisms
Authors: Kim Young Seo , Kim Bum Joon , Noh Kyung Chul , Lee Kyung Mi , Heo Sung Hyuk , Choi Hye-Yeon , Kim Hyun Young , Koh Seong-Ho , Chang Dae-Il
Published: June 2019

Background: Clinical and radiological characteristics of middle cerebral artery (MCA) infarction may differ according to the location of occlusion. Objectives: We investigated the difference between proximal and distal symptomatic MCA occlusion (MCAO) in patients with ischemic stroke. The factors associated with the imaging characteristics were also analyzed. Methods: Patients with ischemic stroke due to MCAO were consecutively enrolled. The location of MCAO was determined by the ratio of the length of the ipsilesional MCA to that of the contralateral MCA and dichotomized to proximal and distal MCAO. Clinical and radiological characteristics were compared between patients with proximal and distal MCAO. Factors associated with the basal ganglia (BG) involvement, hemorrhagic transformation (HT), and neurological change during admission were investigated. Results: Among 181 included patients, MCAO location showed a bimodal peak (at the proximal [n = 99] and distal MCA [n = 82]). Proximal MCAO was more frequently associated with hyperlipidemia and large artery atherosclerosis, whereas distal MCAO was more frequently associated with hypertension, atrial fibrillation, and cardioembolic stroke. BG involvement was similar between the 2 groups (48 vs. 39%; p = 0.21), whereas HT was more frequent in distal MCAO (10 vs. 23%; p = 0.02). Among patients with proximal MCAO, hyperintense vessel sign was less frequently observed in those with a BG involvement than those without (38 vs. 60%; p = 0.03). Among those without BG involvement, the presence of HT was very low and similar between patients with proximal and distal MCAOs (1.9 vs. 2.0%). However, in patients with BG involvement, HT was more frequently observed in those with distal MCAO than in those with proximal MCAO (54.8 vs. 15.7%; p < 0.001). The presence of hyperintense vessel sign (OR 0.172, 95% CI 0.051–0.586; p = 0.005) and distal MCAO (OR 0.200, 95% CI 0.059–0.683; p = 0.011) was independently associated with improvement during admission. Conclusion: Proximal MCAO is more frequently associated with atherosclerosis, whereas distal MCAO is more frequently associated with cardioembolism. In proximal MCAO, the status of collateral flow presented by hyperintense vessel sign may affect the involvement of BG. In distal MCAO, distal migration of the embolus, which first impacted at the proximal MCA causing BG ischemia, may explain the high rate of HT by reperfusion injury. Hyperintense vessel sign and distal MCAO were independently associated with neurological improvement during admission.
Fabrication and studying the dielectric properties of (polystyrene-copper oxide) nanocomposites for piezoelectric application
Authors: Hassan Dalal , Ah-yasari Ahmed Hashim
Published: June 2019

The preparation of (polystyrene-copper oxide) nanocomposites have been investigated for piezoelectric application. The copper oxide nanoparticles were added to polystyrene by different concentrations are (0, 4, 8 and 12) wt.%. The structural and A.C electrical properties of (PS-CuO) nanocomposites were studied. The results showed that the dielectric constant and dielectric loss of (PS-CuO) nanocomposites decrease with increase in frequency. The A.C electrical conductivity increases with increase in frequency. The dielectric constant, dielectric loss and A.C electrical conductivity of polystyrene increase with increase in copper oxide nanoparticles concentrations. The results of piezoelectric application showed that the electrical resistance of (PS-CuO) nanocomposites decreases with increase in pressure.
Simulation design of trajectory planning robot manipulator
Authors: Pambudi Wahyu S. , Alfianto Enggar , Rachman Andy , Hapsari Dian Puspita
Published: June 2019

Robots can be mathematically modeled with computer programs where the results can be displayed visually, so it can be used to determine the input, gain, attenuate and error parameters of the control system. In addition to the robot motion control system, to achieve the target points should need a research to get the best trajectory, so the movement of robots can be more efficient. One method that can be used to get the best path is the SOM (Self Organizing Maps) neural network. This research proposes the usage of SOM in combination with PID and Fuzzy-PD control for finding an optimal path between source and destination. SOM Neural network process is able to guide the robot manipulator through the target points. The results presented emphasize that a satisfactory trajectory tracking precision and stability could be achieved using SOM Neural networking combination with PID and Fuzzy-PD controller.The obtained average error to reach the target point when using Fuzzy-PD=2.225% and when using PID=1.965%.
Wavelet energy moment and neural networks based particle swarm optimisation for transmission line protection
Authors: Daiboun Sahel Salah Sabry , Boudour Mohamed
Published: June 2019

In this study, a combined approach of discrete wavelet transform analysis and a feed forward neural networks algorithm to detect and classify transmission line faults. The proposed algorithm uses a multi -resolution analysis decoposition of three-phasecurrents only to calculate the wavelet energy moment of detailed coefficients. In comparison with the energy spectrum, the energy moment could reveal the energy distribution features better, which is beneficial when extracting signal features. Theapproach use particle swarm optimization algorithm to train a feed forward neural network. The goal is the enhancement of the convergence rate, learning process and fill up the gap of local minimum point.The purposed scheme consists of two FNNs, one for detecting and another for classifying all the ten types of faults using Matlab/Simulink. The proposed algorithm have been extensively tested on a system 400 kV, 3 phases, 100 km line consideringvarious fault parameter variations.
Performance analysis of low-complexity welch power spectral density for automatic frequency analyser
Authors: Jun Teh Yi , Jambek Asral Bahari , Hashim Uda
Published: June 2019

The aim of this paper is to investigate the performance of the Low Complexity Welch Power Spectral Density Computation (PSDC). This algorithm is an improvement from Welch PSDC method to reduce the computational complexity of the method. The effect of the sampling rate and the input frequency toward to accuracy of frequency detection is being evaluated. From the experiment results, sampling rate nearest to the twice of the input frequency provides the highest accuracy which achieved 99%. The ability of the algorithm to perform complex signal also has been investigated.
Radio frequency radiation measurement for base tower station safety compliances: a case study in Pulau Pinang Malaysia
Authors: Khuzairi M. , Rahim H. A. , Abdulmalek M. , M. Warip M. Nazri
Published: June 2019

The residence of Pulau Pinang and Malaysia generally are worried with the possible health effects due to Base Tower Station (BTS) radiation. Particularly, the residents of Pulau Pinang are utilizing their mobile phones for multiple kind of tasks including communications, browsing the internet and other applications. With the recent advances in mobile communication technologies, the end user demanded a better coverage, great communication services, and faster speed for internet browsing. To fulfill the demand, service provider and communication companies are providing plenty of communication base tower leading to the beliefs of that the tower emitted radiation and cause harmful effect to human health and voiced out and complain to the municipal councils in Malaysia. In this paper, a measurement was conducted to study electromagnetic fields (EMF) radiation level in Pulau Pinang. The measurement is compared with the international standard provided by International Commission of Non-Ionizing Radiation Protection (ICNIRP). Far field measurement of different values of long term evolution (LTE) exposure was demonstrated in radiofrequency (RF) shielded environment. LTE850, LTE1800 and LTE2600 field exposure was compared in term of its’ electrical field and power density that adhere to the standard provided by ICNIRP.
Performance evaluation of 2-port MIMO LTE-U terminal antenna with user’s hand effect
Authors: Elshirkasi Ahmed Mohamed , Al-Hadi Azremi Abdullah , Khan Rizwan , Soh Ping Jack
Published: June 2019

This paper presents the performance evaluation of 2-port MIMO antenna for LTE-U sub 6 GHz band. The evaluation focuses on the effect of user’s hand in a uniform environment and the analysis were carried out on simulation and measurement data of antenna ports. Results show that the highest performance of the design is on the frequency range from 4.5 GHz to 5.5 GHz, and the ports have low envelope correlation coefficient (ECC) less than 0.16 in both cases of without and with user’s hand. However, the presence of the user’s hand reduces mean effective gain (MEG) of ports and diversity combining gain by more than 1.6 dB compared with no-hand case. The multiplexing efficiency is around 81% and reduced by the presence of the user’s hand to 55%. Despite this reduction; the design shows high spatial multiplexing capability in both cases. The capacity carried by the second transmission eigenmode is about 39% from the total capacity under waterfilling algorithm transmit power allocation.
Last mile mobile hybrid optical wireless access network routing enhancement
Authors: Yoon Khang Adam Wong , Elias Shamsul J. , Pusppanathan J. , Zulkifli Nadiatulhuda , Halim N. H. , Abdullah Shapina
Published: June 2019

This study focuses on mobile ad hoc networks (MANETs) that support Internet routing protocol imposing stringent resource consumption constraints of Quality of service (QoS). The mobile Internet causes the ongoing issue of inefficient use of the MANET resources due to its random nature of wireless environments. In this paper, the new improved architecture of the last mile mobile hybrid optical-wireless access network (adLMMHOWAN) is proposed and designed to tackle the arised issues. The proposed design is based on a unified wireless-wired network solution required the deployment of MANET-based wireless fidelity (WiFi) technology at the wireless front-end and wavelengths division multiplexing passive optical network (WDM PON) at the optical backhaul. The critical performance metrics such as network capacity and energy consumption based on modified AODVUU routing protocol using OMNeT++ software is analyzed with 2 scenarios, namely the number of nodes and mobility speed. This mode of communication results in better QoS network capacity of 47.07% improvement, with 26.85% reduction of lower energy resource consumption for mobile wireless front-end over passive optical network backhaul architecture when compared with the existing work of oRiq scheme that focus on improvement in MANETs.
Face recognition attendance system using Local Binary Pattern (LBP)
Authors: Elias Shamsul J. , Hatim Shahirah Mohamed , Hassan Nur Anisah , Abd Latif Lily Marlia , Ahmad R. Badlishah , Darus Mohamad Yusof , Shahuddin Ahmad Zambri
Published: June 2019

Attendance is important for university students. However, generic way of taking attendance in universities may include various problems. Hence, a face recognition system for attendance taking is one way to combat the problem. This paper will present an automated system that will automatically saves student’s attendance into the database using face recognition method. The paper will elaborate on student attendance system, image processing, face detection and face recognition. The face detection part will be done by using viola-jones algorithm method while the face recognition part will be carried on by using local binary pattern (LBP) method. The system will ensure that the attendance taking process will be faster and more accurate.
The evaluation performance of letter-based technique on text steganography system
Authors: Din Roshidi , Bakar Rosmadi , Utama Sunariya , Jasmis Jamaluddin , Elias Shamsul Jamel
Published: June 2019

Steganography is a part of information hiding in covering the hidden message in any medium such as text, image, audio, video and others. This paper concerns about the implementation of steganography in text domain called text steganography. It intends to concentrate on letter-based technique as one of the representative techniques in text steganography. This paper displays some techniques of letter-based that is integrated in one system technique displayeed in a logical and physical design. The integrated system is evaluated using some parameter that is used in order to discover the performance in term of capacity after embedding process and the time consuming in the development process. This paper is anticipated to contribute in describing the implementation of the techniques in one system and to display the performance some parameter evaluation.
Solving financial allocation problem in distribution system expansion planning
Authors: Mohd Tahar Siti Hajar , Yaakob Shamshul Bahar , Fazil Rahman Ahmad Shukri , Ahmed Amran
Published: June 2019

This paper introduces a new technique to solve financial allocation in Distribution System Expansion Planning (DSEP) problem. The proposed technique will be formulated by using mean-variance analysis (MVA) approach in the form of mixed-integer programming (MIP) problem. It consist the hybridization of Hopfield Neural Network (HNN) and Boltzmann Machine (BM) in first and second phase respectively. During the execution at the first phase, this model will select the feasible units meanwhile the second phase will restructured until it finds the best solution from all the feasible solution. Due to this feature, the proposed model has a fast convergence and the accuracy of the obtained solution. This model can help planners in decision-making process since the solutions provide a better allocation of limited financial resources and offer the planners with the flexibility to apply different options to increase the profit.
Low insertion loss of surface mount device low pass filter at 700 MHz
Authors: Khairi Khairil Anuar , Jamlos Mohd Faizal , Padmanathan Surentiran , Jamlos Mohd Aminudin , Isa Muammar Mohamad
Published: June 2019

The paper involved with the design, simulation and fabrication of 6th order elliptical-based Surface Mount Device (SMD) LPF with cutoff frequency at 700 MHz. Fabricated LPF is consisted of four PCB layers which components of SMD are soldered on the top layer. Another three layers is for grounding and shielding, power supply and grounding void. The four layers is crucial to avoid interference between components. The research has find out that the momentum simulation is definitely required to improve the signals response compared to a normal simulation by ADS software. The comparison between momentum simulated versus measured and normal simulated versus measured is 0.2 dB and 29 dB correspondingly. Such huge difference leads to conclusion that momentum simulation is saving time without having much struggles and efforts to get optimum readings. The Proposed SMD LPF has a very low insertion loss of 0.965dB with a transition region of 195 MHz which is good steepness to avoid any image frequency.
Self-switching diodes as RF rectifiers: evaluation methods and current progress
Authors: Zakaria Nor Farhani , Kasjoo Shahrir Rizal , Isa Muammar Mohamad , Zailan Zarimawaty , Khairuddin Md Arshad Mohd , Taking Sanna
Published: June 2019

In the advancement of the Internet of Things (IoT) applications, widespread uses and applications of devices require higher frequency connectivity to be explored and exploited. Furthermore, the size, weight, power and cost demands for the IoT ecosystems also creates a new paradigm for the hardware where improved power efficiency and efficient wireless transmission needed to be investigated and made feasible. As such, functional microwave detectors to detect and rectify the signals transmitted in higher frequency regions are crucial. This paper reviewed the practicability of self switching diodes as Radio Frequency (RF) rectifiers. The existing methods used in the evaluation of the rectification performance and cut-off frequency are reviewed, and current achievements are then concluded. The works reviewed in this paper highlights the functionality of SSD as a RF rectifier with design simplicity, which may offer cheaper alternatives in current high frequency rectifying devices for application in low-power devices.
High availability of data using Automatic Selection Algorithm (ASA) in distributed stream processing systems
Authors: Alshamrani Sultan , Alhumyani Hesham , Waseem Quadri , Mohamed Isbudeen Noor
Published: June 2019

High Availability of data is one of the most critical requirements of a distributed stream processing systems (DSPS). We can achieve high availability using available recovering techniques, which include (active backup, passive backup and upstream backup). Each recovery technique has its own advantages and disadvantages. They are used for different type of failures based on the type and the nature of the failures. This paper presents an Automatic Selection Algorithm (ASA) which will help in selecting the best recovery techniques based on the type of failures. We intend to use together all different recovery approaches available (i.e., active standby, passive standby, and upstream standby) at nodes in a distributed stream-processing system (DSPS) based upon the system requirements and a failure type). By doing this, we will achieve all benefits of fastest recovery, precise recovery and a lower runtime overhead in a single solution. We evaluate our automatic selection algorithm (ASA) approach as an algorithm selector during the runtime of stream processing. Moreover, we also evaluated its efficiency in comparison with the time factor. The experimental results show that our approach is 95% efficient and fast than other conventional manual failure recovery approaches and is hence totally automatic in nature.
Energy efficient anti-collision algorithm for the RFID networks
Authors: Loganathan Murukesan , Sabapathy Thennarasan , Elshaikh Mohamed , Osman Mohamed Nasrun , Rahim Rosemizi Abd
Published: June 2019

Energy efficiency is crucial for radio frequency identification (RFID) systems as the readers are often battery operated. The main source of the energy wastage is the collision which happens when tags access the communication medium at the same time. Thus, an efficient anti-collision protocol could minimize the energy wastage and prolong the lifetime of the RFID systems. In this regard, EPCGlobal-Class1-Generation2 (EPC-C1G2) protocol is currently being used in the commercial RFID readers to provide fast tag identification through efficient collision arbitration using the Q algorithm. However, this protocol requires a lot of control message overheads for its operation. Thus, a reinforcement learning based anti-collision protocol (RL-DFSA) is proposed to provide better time system efficiency while being energy efficient through the minimization of control message overheads. The proposed RL-DFSA was evaluated through extensive simulations and compared with the variants of EPC-Class 1 Generation 2 algorithms that are currently being used in the commercial readers. The results show conclusively that the proposed RL-DFSA performs identically to the very efficient EPC-C1G2 protocol in terms of time system efficiency but readily outperforms the compared protocol in the number of control message overhead required for the operation.
Efﬁcient FPGA implementation of high speed digital delay for wideband beamforming using parallel architectures
Authors: Cardarilli Gian Carlo , Nunzio Luca Di , Fazzolari Rocco , Giardino Daniele , Matta Marco , Re Marco , Spanò Sergio , Simone Lorenzo
Published: June 2019

In this paper, the authors present an FPGA implementation of a digital delay for beamforming applications. The digital delay is based on a Parallel Farrow Filter. Such architecture allows to reach a very high processing rate with wideband signals and it is suitable to be used with Time-Interleaved Analog to Digital Converters (TI-ADC). The proposed delay has been simulated in MATLAB, implemented on FPGA and characterized in terms of amplitude and phase response, maximum clock frequency and area.
Automatic household waste separation system based on resistance value and moisture content
Authors: Ahamad Nurul Nazihah , Mohamad Sarah Yasmin , Midi Nur Shahida , Yusoff Siti Hajar , Rahman Faridah Abd
Published: June 2019

In the new era of globalization, waste disposal has turned into an immense concern among the nation. Nowadays, almost every part of the world is confronting a huge issue of improper disposal, segregation and recycling solid waste. Due to rapid growth in economy, industrialization and urbanization, there is also a rapid increase of capacity and volume of solid waste. As a result, improper management of solid waste lead to disturbance to the environment and human health. In this paper, a fully automated waste separation system to discriminate residual and recyclable waste is proposed. The system is designed to focus on household waste, since household waste ranks the highest volume of waste among others. It is designed to separate household waste into recyclable and residual waste according to the materials’ state, which is dry and wet, by employing a moisture sensor to the waste separation system.
Silicon carbide schottky diodes forward and reverse current properties upon fast electron radiation
Authors: Khairi M. Azim , Rahim Rosminazuin Ab. , Saidin Norazlina , Abdullah Yusof , Hasbullah Nurul Fadzlin
Published: June 2019

This paper investigates on the reaction of 10 and 15MGy, 3MeV electron irradiation upon off-the-shelves (commercial) Silicon Carbide Schottky diodes from Infineon Technologies (model: IDH08SG60C) and STMicroelectronics (model: STPSC806). Such irradiation reduces the forward-bias current. The reduction is mainly due to the significant increase of the series resistance (i.e. Infineon: 1.45Ω at before irradiation → 121×103 Ω at 15MGy); STMicroelectronics: 1.44Ω at before irradiation → 2.1×109 Ω at 15MGy). This increase in series resistance gives 4.6 and 8.2 orders of magnitude reduction for the forward-bias current density of Infineon and STMicroelectronics respectively. It is also observed that the ideality factor and the saturation current of the diodes increases with increasing dose (i.e. ideality factor- Infineon: 1.01 at before irradiation → 1.05 at 15MGy; STMicroelectronics: 1.02 at before irradiation → 1.3 at 15MGy | saturation current- Infineon: 1.6×10-17A at before irradiation → 2.5×10-17A at 15MGy; STMicroelectronics: 2.4×10-15A at before irradiation → 8×10-15A at 15MGy). Reverse-bias leakage current density in model by Infineon increases by one order of magnitude after 15MGy irradiation, however, in model by STMicroelectronics decreases by one order of magnitude. Overall, for these particular samples studied, Infineon devices have shown to be better in quality and more radiation resistance toward electron irradiation in forward-bias operation while STMicroelectronics exhibit better characteristics in reverse-bias operation.
Design and implementation of a series switching SPSI for PV cell to use in carrier based grid synchronous system
Authors: Rahman Tawfikur , M. A. Motakabber S. , Ibrahimy Muhammad I. , H. M. Zahirul Alam A.
Published: June 2019

A carrier-based grid synchronous method is proposed to develop the system efficiency, phase and power quality of the inverter output waves. The operating principle of a single-phase phase synchronous inverter (SPSI) is introduced, with proper synchronous paid to the switching-frequency synchronizing voltage made by the interleaved process, as well as actual mitigation approaches. In the construction of the SPSI, input and output filters are electrically coupled with the two sides of an inverter. The inverter power electronic switches and other electrical components are operated by carrier-based grid synchronous controller (CBGSC) with PWM regulator. The SPSI is designed and implemented with the Toshiba 40WR21 IGBT, Digital Microcontroller pulse controller (DMPC) and 4N35 Optocoupler with a fundamental frequency of 50Hz. The other parameters are considered as load resistance, =11Ω, duty cycle, 85%, carrier frequency, 2.5kHz and input DC voltage, ± 340V. In addition, LCL lowpass grid filters are used to convert squire wave to sine wave with required phase and frequency. Finally, the simulated and experimental results obtained with a carrier-based grid synchronous SPSI experimental prototype are exposed for justification, showing the phase error of 55% improvement, reduced 11% of THD and the conversion efficiency of 97.02% highly predicted by the proposed design technique to improve the microgrid system.
Petrologia e geocronologia do Batólito Rio Jacaré, Domínio Poço Redondo, Sistema Orogênico Sergipano, NE do Brasil
Authors: Sousa Carlos Santana , Soares Hiakan Santos , Rosa Maria De Lourdes da Silva , Conceição Herbet
Published: June 2019

O Batólito Rio Jacaré (BRJ) (167 km2), localizado no sul do Domínio Poço Redondo (DPR), Sistema Orogênico Sergipano (SOS), é um corpo intrusivo com frequente foliação magmática e onde não se observa deformação no estado sólido. As rochas do BRJ têm composições monzogranítica, granodiorítica e quartzo monzonítica, cor cinza, granulação média a grossa e texturas inequigranular e porfirítica. Enclaves máficos microgranulares (EMM) são abundantes, têm composições diorítica e granodiorítica, e preservam feições de mingling e mixing. Os EMM apresentam cor cinza-escura, tamanhos de até 2 m e granulação fina. As rochas do BRJ e os enclaves têm mineralogia similar. Os minerais máficos são biotita, hornblenda e óxidos de ferro-titânio. Os plagioclásios (andesina e oligoclásio) exibem zoneamentos composicionais múltiplos, dominantemente normais, indicando existência de fracionamento magmático. O feldspato alcalino (ortoclásio e microclina) tem composição de Or75-98-Ab25-2. A biotita (0,3 < Fe/(Fe + Mg) < 0,6) é magmática e apresenta-se reequilibrada. A Mg-hornblenda e edenita magmáticas cristalizaram sob condições de alta fO2, a profundidade máxima de 25 km e temperatura de 826,3ºC. Os dados geoquímicos indicam que as rochas do BRJ são magnesianas, metaluminosas e exibem afinidades com as séries calcioalcalina de alto K a álcali-cálcica, e os enclaves são shoshoníticos. As razões [La/Yb]N (13–133) e as anomalias negativas de Eu evidenciam alto grau de fracionamento. O BRJ é ediacarano e possui idade de cristalização U-PbSHRIMP de 617 ± 4 Ma. Os baixos conteúdos de Ta, Nb, Ti e P, e moderados de Y, Nb e Rb dessas rochas indicam magmas formados em ambiente orogênico pós-colisional.
Sobre mulheres: palavras e ações
Authors: Jacob Maria Marta
Published: June 2019

Esta resenha apresenta uma análise da obra Empoderadas – mulheres eternas corpo a corpo, de Palmério Dória. O livro possui um poder capital: o império das mulheres. O resultado é um texto fluido e interessante que contribui para explicar a importância do ativismo político feminino nos diferentes campos sociais. Há uma dinâmica dialógica que possibilita conhecer a interação de mulheres com os mesmos objetivos independentemente das fronteiras geográficas que as distanciam.
Identidade e alteridade em Gabriel e a montanha e Sem teto nem lei
Authors: Magno Maria Ignês Carlos , Eduardo André Gustavo de Paula
Published: June 2019

Esta resenha objetiva comentar os filmes Gabriel e a montanha, de Fellipe Barbosa, e Sem teto nem lei, de Agnès Varda, e promover uma reflexão sobre os conceitos de identidade e alteridade por meio da comparação dos filmes – que contêm aspectos narrativos semelhantes, já que os protagonistas de um e outro são viajantes; porém, a viagem e o caminhar trazem sentidos bastante distintos, os quais interessam a esta resenha.
Design thinking na publicidade
Authors: Souza Amarinildo Osório de , Mendonça Andréa Pereira
Published: June 2019

Neste artigo, apresentamos uma proposta de ensino-aprendizagem para o desenvolvimento de projetos publicitários com design thinking (DT), considerando como público-alvo estudantes de graduação em Publicidade e Propaganda. A revisão bibliográfica compreende os temas: ensino de projetos publicitários, DT e alinhamento construtivo (AC); seguida do detalhamento da proposta de ensino-aprendizagem e dos elementos que a compõem. Os resultados obtidos evidenciaram a efetividade da proposta de ensino-aprendizagem e apontam a imersão como a fase do DT que os alunos sentem mais dificuldade de realizar. A proposta pode auxiliar professores da área a replicar a experiência por meio dos materiais e recursos disponibilizados e, além disso, o próprio percurso de construção pode servir como orientação para compor outras propostas visando o ensino de Publicidade e Propaganda.
Environmental and socioeconomic analysis of malaria transmission in the Brazilian Amazon, 2010–2015
Authors: Canelas Tiago , Castillo-Salgado Carlos , Baquero Oswaldo Santos , Ribeiro Helena
Published: June 2019

OBJECTIVE: To analyze the environmental and socioeconomic risk factors of malaria transmission at municipality level, from 2010 to 2015, in the Brazilian Amazon. METHODS: The municipalities were stratified into high, moderate, and low transmission based on the annual parasite incidence. A multinomial logistic regression that compared low with medium transmission and low with high transmission was performed. For each category, three models were analyzed: one only with socioeconomic risk factors (Gini index, illiteracy, number of mines and indigenous areas); a second with the environmental factors (forest coverage and length of the wet season); and a third with all covariates (full model). RESULTS: The full model showed the best performance. The most important risks factors for high transmission were Gini index, length of the wet season and illiteracy, OR 2.06 (95%CI 1.19–3.56), 1.73 (95%CI 1.19–2.51) and 1.10 (95%CI 1.03–1.17), respectively. The medium transmission showed a weaker influence of the risk factors, being illiteracy, forest coverage and indigenous areas statistically significant but with marginal influence. CONCLUSIONS: As a disease of poverty, the reduction in wealth inequalities and, therefore, health inequalities, could reduce the transmission considerably. Besides, environmental risk factors as length of the wet season should be considered in the planning, prevention and control. Municipality-level and fine-scale analysis should be done together to improve the knowledge of the local dynamics of transmission.
Neurohormones in Vasovagal Syncope: Are They Important?
Authors: Williford Noah N. , Chapleau Mark W. , Olshansky Brian
Published: June 2019

See Article
Torabi et al
Trends and Factors Associated With Concordance Between
International Classification of Diseases, Ninth and Tenth Revision, Clinical Modification
Codes and Stroke Clinical Diagnoses
Authors: Chang Tiffany E. , Tong Xin , George Mary G. , Coleman King Sallyann M. , Yin Xiaoping , O’Brien Suzanne , Ibrahim Ghada , Liskay Alice ,   the Paul Coverdell National Acute Stroke Program team, Wiltz Jennifer L.
Published: June 2019

Background and Purpose—

International Classification of Diseases, Ninth and Tenth Revision, Clinical Modification
(
ICD-9-CM
and
ICD-10-CM
) codes are often used for disease surveillance. We examined changes in concordance between
ICD-CM
codes and clinical diagnoses before and after the transition to
ICD-10-CM
in the United States (October 1, 2015), and determined if there were systematic variations in concordance by patient and hospital characteristics.

Methods—

We included Paul Coverdell National Acute Stroke Program patient discharges from 2014 to 2017. Concordance between
ICD-CM
codes and the clinical diagnosis documented by the physician (assumed as accurate) was calculated for each diagnosis category: ischemic stroke, transient ischemic attack, subarachnoid hemorrhage, and intracerebral hemorrhage.

Results—

In total, 314 857 patient records were included in the analysis (n=280 hospitals), 55.9% of which were obtained after the transition to
ICD-10-CM
. While concordance was generally high, a small, and temporary decline occurred from the last calendar quarter of
ICD-9-CM
(average unadjusted concordance =92.8%) to the first quarter of
ICD-10-CM
use (91.0%). Concordance differed by diagnosis category and was generally highest for ischemic stroke. In the analysis of
ICD-10-CM
records, disagreements often occurred between ischemic stroke and transient ischemic attack records and between subarachnoid and intracerebral hemorrhage records. Compared with the smallest hospitals (≤200 beds), larger hospitals had significantly higher odds of concordance (ischemic stroke adjusted odds ratio for ≥400 beds, 1.7; 95% CI, 1.5–1.9).

Conclusions—

This study identified a small and transient decline in concordance between
ICD-CM
codes and stroke clinical diagnoses during the coding transition, indicating no substantial impact on the overall identification of stroke patients. Researchers and policymakers should remain aware of potential changes in
ICD-CM
code accuracy over time, which may affect disease surveillance. Systematic variations in the accuracy of codes by hospital and patient characteristics have implications for quality-of-care studies and hospital comparative assessments.
Effectiveness and Safety of Contemporary Oral Anticoagulants Among Asians With Nonvalvular Atrial Fibrillation
Authors: Lee So-Ryoung , Choi Eue-Keun , Kwon Soonil , Han Kyung-Do , Jung Jin-Hyung , Cha Myung-Jin , Oh Seil , Lip Gregory Y.H.
Published: June 2019

Background and Purpose—

Limited evidence exists on the effectiveness and safety of warfarin and all 4 available non-vitamin K antagonist oral anticoagulants (NOACs) from current clinical practice in the Asian population with nonvalvular atrial fibrillation. We aimed to evaluate the comparative effectiveness and safety of warfarin and 4 NOACs.

Methods—

We studied a retrospective nonrandomized observational cohort of oral anticoagulant naïve nonvalvular patients with atrial fibrillation treated with warfarin or NOACs (rivaroxaban, dabigatran, apixaban, or edoxaban) from January 2015 to December 2017, based on the Korean Health Insurance Review and Assessment database. For the comparisons, warfarin to 4 NOACs and NOAC to NOAC comparison cohorts were balanced using the inverse probability of treatment weighting. Ischemic stroke, intracranial hemorrhage, gastrointestinal bleeding, major bleeding, and a composite clinical outcome were evaluated.

Results—

A total of 116 804 patients were included (25 420 with warfarin, 35 965 with rivaroxaban, 17 745 with dabigatran, 22 177 with apixaban, and 15 496 with edoxaban). Compared with warfarin, all NOACs were associated with lower risks of ischemic stroke, intracranial hemorrhage, gastrointestinal bleeding, major bleeding, and composite outcome. Apixaban and edoxaban showed a lower rate of ischemic stroke compared with rivaroxaban and dabigatran. Apixaban, dabigatran, and edoxaban had a lower rate of gastrointestinal bleeding and major bleeding compared with rivaroxaban. The composite clinical outcome was nonsignificantly different for apixaban versus edoxaban.

Conclusions—

In this large contemporary nonrandomized Asian cohort, all 4 NOACs were associated with lower rates of ischemic stroke and major bleeding compared with warfarin. Differences in clinical outcomes between NOACs may give useful guidance for physicians to choose drugs to fit their particular patient clinical profile.
Monitoring Multiple Deadlines Relies on Spatial Processing in Posterior Parietal Cortex
Authors: Zimmermann Marius , Kubik Veit , Persson Jonas , Mäntylä Timo
Published: June 2019

Proactively coordinating one's actions is an important aspect of multitasking performance due to overlapping task sequences. In this study, we used fMRI to investigate neural mechanisms underlying monitoring of multiple overlapping task sequences. We tested the hypothesis that temporal control demands in multiple-task monitoring are offloaded onto spatial processes by representing patterns of temporal deadlines in spatial terms. Results showed that increased demands on time monitoring (i.e., responding to concurrent deadlines of one to four component tasks) increasingly activated regions in the left inferior parietal lobe and the precuneus. Moreover, independent measures of spatial abilities correlated with multiple-task performance beyond the contribution of working memory. Together, these findings suggest that monitoring and coordination of temporally overlapping task timelines rely on cortical processes involved in spatial information processing. We suggest that the precuneus is involved in tracking of multiple task timelines, whereas the inferior parietal lobe constructs spatial representations of the temporal relations of these overlapping timelines. These findings are consistent with the spatial offloading hypothesis and add new insights into the neurocognitive mechanisms underlying the coordination of multiple tasks.
Ultrafast Object Detection in Naturalistic Vision Relies on Ultrafast Distractor Suppression
Authors: Hickey Clayton , Pollicino Daniele , Bertazzoli Giacomo , Barbaro Ludwig
Published: June 2019

People are quicker to detect examples of real-world object categories in natural scenes than is predicted by classic attention theories. One explanation for this puzzle suggests that experience renders the visual system sensitive to midlevel features diagnosing target presence. These are detected without the need for spatial attention, much as occurs for targets defined by low-level features like color or orientation. The alternative is that naturalistic search relies on spatial attention but is highly efficient because global scene information can be used to quickly reject nontarget objects and locations. Here, we use ERPs to differentiate between these possibilities. Results show that hallmark evidence of ultrafast target detection in frontal brain activity is preceded by an index of spatially specific distractor suppression in visual cortex. Naturalistic search for heterogenous targets therefore appears to rely on spatial operations that act on neural object representations, as predicted by classic attention theory. People appear able to rapidly reject nontarget objects and locations, consistent with the idea that global scene information is used to constrain naturalistic search and increase search efficiency.
The Liberation of G-D: Helène Aylon’s Jewish Feminist Art
Authors: Sperber David
Published: June 2019

Helène Aylon (b. 1931) is among the first generation of feminist artists who identified and challenged traditional patriarchal and misogynist readings of ancient religious texts. This article analyzes the discourse and examines the reception of Aylon’s work The Liberation of G-d (1990–1996) within the Jewish art world and the American Conservative Jewish community, and her contribution to these two diverse audiences. Despite the work’s confrontation with tradition, some rabbis from the Conservative movement played a significant role in the acceptance of the work and its exhibition in the Jewish Museum in New York and other Jewish institutions. However, they reduced its radicalism, reframing the work as a Midrashic interpretation (a form of traditional rabbinic commentary) that operates within the framework and rules that delineate the traditional Jewish interpretive community. This article analyzes how the rabbis tamed the artist’s activist and critical work. I argue that Aylon challenges the Jewish community with a radical feminist discourse that is often omitted from the dominant discourse of the traditional Jewish community. By analyzing the engagements with and reception of Aylon’s work within the Jewish art world and the Jewish Conservative community, I demonstrate how the artist seeks real social engagement that reaches beyond the walls of the museum, challenging the structures of religious patriarchy while engaging in a dialogue with its representatives.
Shrimps of the genus Periclimenes (Crustacea, Decapoda, Palaemonidae) associated with mushroom corals (Scleractinia, Fungiidae): linking DNA barcodes to morphology
Authors: Rauch Cessa , Hoeksema Bert W. , Hermanto Bambang , Fransen Charles H.J.M.
Published: June 2019

Most marine palaemonid shrimp species live in symbiosis with invertebrates of various phyla. These associations range from weak epibiosis to obligatory endosymbiosis and from restricted commensalism to semi-parasitism. On coral reefs, such symbiotic shrimps can contribute to the associated biodiversity of reef corals. Among the host taxa, mushroom corals (Cnidaria: Anthozoa: Fungiidae) are known to harbour various groups of symbionts, including shrimps. Some but not all of these associated species are host-specific. Because data on the host specificity of shrimps on mushroom corals are scarce, shrimp species of the genus Periclimenes were collected from mushroom corals during fieldwork in Lembeh Strait, North Sulawesi, Indonesia. Using molecular (COI barcoding gene) and morphological methods, three species of Periclimenes were identified: P. diversipes, P. watamuae and a species new to science, P. subcorallum sp. nov., described herein. Their host specificity was variable, with eight, three and two fungiid host records, respectively. It is concluded that shrimp species of the genus Periclimenes show much overlap in their host choice and that particular morphological traits in the host species appear to play a more important role than phylogenetic affinities within the host group.
Multisensory Integration Is Modulated by Auditory Sound Frequency and Visual Spatial Frequency
Authors: Green Jessica J. , Pierce Allison M. , Mac Adams Spencer L.
Published: June 2019

Accurate integration of auditory and visual information is essential for our ability to communicate with others. Previous studies have shown that the temporal discrepancies over which audiovisual speech stimuli will be integrated into a coherent percept are much wider than those typically observed for simple stimuli like beeps and flashes of light. However, our sensitivity to the low-level features of simple stimuli is not constant. We hypothesized that part of the enhanced integration of audiovisual speech may be due to it consisting predominantly of the sound frequencies and visual spatial frequencies that humans are most sensitive to. Here, we examined integration behaviors for pure tones across the sound frequency spectrum and visual gratings across the spatial frequency spectrum to examine how these low-level features modulate integration. The temporal window of integration was modulated by both sound frequency and visual spatial frequency, with the widest integration window occurring when both stimuli fell within their respective peak sensitivity ranges. These results suggest that part of the increased tolerance for temporal asynchrony typically observed for audiovisual speech may be due to the differential integration of low-level stimulus features that are dominant within complex audiovisual speech.
Hedyotis tonggulingensis (Rubiaceae): A new species from Hainan, China
Authors: JIANG GUO-BIN , WANG RUI-JIANG
Published: June 2019

Hedyotis tonggulingensis is described as a new species from China. It is similar to the sympatric species H. hainanensis, but obviously differs in having tetragonal stems with narrow wings, terminal and axillary inflorescences and the short corolla tubes. The phylogenetic analysis revealed that H. tonggulingensis was closely related to the sympatric species of H. pardifolia and H. yazhouensis but not to H. hainanensis. It was evaluated as Least Concern because of its abundant individuals, little economic use and well protected habitat.
A remarkable new species of the digger wasp genus Zanysson Rohwer 1921 from Colombia (Hymenoptera: Apoidea, Crabronidae)
Authors: OHL MICHAEL , KRAUSE STEFANIE
Published: June 2019

Zanysson gemmatus sp. nov. (Hymenoptera: Apoidea, Crabronidae) is described from northwestern Colombia and compared with all species currently assigned to this genus. It is the first new species in this strictly New World genus recognized since 1938 and the first recorded from Colombia. The new species can be identified by the remarkable scutellar structure and pattern of color and pilosity of the legs. Nothing is known about its biology, but members of Zanysson are assumed to be cleptoparasites of other crabronid wasps