bluuebunny/crossref_metadata_2025 huggingface dataset:
Random and match game for education purposes with model learning technology system architecture
Authors: Rahim R. , Kurniasih N , Daengs GS A , Saddhono K , Riasti B K , Rangka I B , Kurniawan D E , Permana Erwin Putera , Anam Fatkul , Listiawan Tomi , Rumambo Pandin Moses Glorino , Gumono G , Yensy. B Nurul Astuty , Chandra Wardhana Dian Eka , Mustika Wida Prima , Rindawati Sepeti
Published: August 2019

Education in Indonesia still faces various problems and challenges in teaching and learning process both internal and external factors such as props, media and also implementation of information technology. The use of multimedia-based learning media in the learning process will helps students to understand the material to be delivered. Random and match is a game consisting of 4 different games that are addressed to kindergarten children to know the use of technology positively in learning process, and by applying Model Learning Technology System Architecture learning an utilization using computer will be more useful for teacher and kindergarten students.
The Contribution of Redesigning Curriculum and Teaching Skills on Strengthening Teachers’ Character of State Islamic Madrasah Aliyah Negeri (MAN) of Padangsidimpuan City
Authors: Asfiati
Published: August 2019

The contribution of redesigning the curriculum and teaching skills is done by designing and streamlining learning process to create reinforcement of educational character. The research problem formulation is: is there any relationship between redesigning curriculum and teaching skills together with strengthening the character of teachers in the State Islamic Senior High School (MAN) of Padangsidimpuan. The research methodology was quantitative with correlational types. Stratified proportional random sampling technique was used. The research instruments were questionnaires arranged according to the Likert scale. The results showed that the contribution of redesigning curriculum to strengthening educational characters was 18.3%, the contribution of teaching skills to the strengthening of educational characters was 15%, while the contribution of the two variables was 26.8%.
APEL (Anak Peduli Lingkungan) Program: Mathematics and Science Learning Experience through Natural Environmental Preservation for Grade 1 and 2 Elementary School Students
Authors: Rudiyanto  , Kurniati Euis , Fitriani Andhin Dyas , Rengganis Ira , Mirawati
Published: August 2019

This paper discusses conceptual studies related to environmental programs for children or APEL program as one of the programs assumed to provide experiences in learning mathematics and science through the preservation of the natural environment. Nature essentially contains various materials that can be used as learning resources for students and one of them can be used in the APEL program. The APEL program is one of the programs in the development of After School Care services for grade 1 and 2 elementary school students. There are three subtopics that will be elaborated in this paper, including the nature of children’s environmental programs (APEL), types of activities in the APEL program, a general overview of mathematics and science learning for grade 1 and 2 elementary school students, as well as mathematics and science learning experiences. in the APEL program. This article is expected to help readers to find a more comprehensive view of alternative mathematics and science learning for grade 1 and 2 elementary school students that can be done not only in the classroom but also can be done through other interesting activities outside the classroom. The conclusion of the authors in this article refers to the importance of positive experiences in mathematics and science learning for students to support their understanding of the concepts of mathematics and science itself, one of which is through the introduction and preservation of the natural environment.
Technology of Traditional Houses in the New Era in the Education Paradigm
Authors: Suaizisiwa Sarumaha Martiman
Published: August 2019

Home as a home for humans. The Nias community has a traditional house called the omo hada which is built on empirical experience not through education achieved with an education degree as a graduate architect. Traditional houses as cultural heritage become a place of residence for residents. Building this traditional house is designed as a building that is resistant to climate, weather and even to earthquakes. The technology contained in this traditional house can educate the public, who are able to provide evidence of traditional technology that can be aligned with current building construction. This traditional house can be used as a learning medium for students because the structure of the traditional community house building has given an educational value that can survive until now and which has become evidence of civilized society. The existence of the Southern Nias traditional house has provided educational values in building behavior of its people in the new era.
Detection and Extraction Features for Signatures Images via Different Techniques
Authors: Alsuhimat F M , Mohamad F S , Iqtait M
Published: August 2019

Signature is one of the most important features to identify individuals. It represents a specific mark that includes handwritten characters or symbols. Also, signing takes place in a wide range of businesses, such as bank transactions and government documents so it provides a good way to maintain security, in biometric systems. Signature is used as a feature to identify the user by extracting a set of features. Over time, a number of techniques have been developed to identify and extract a set of features from the signature image. Although there are many of these techniques, there is a set of elements that determines the feasibility of using a particular technique, such as accuracy, computational complexity, and the time needed to extract features. In this paper, three widely used feature detection algorithms, SURF, BRISK and FAST, these algorithms are compared to calculate the processing time and accuracy for set of signatures correctly. Three techniques have been applied using (UTSig) dataset; the results showed that the BRISK algorithm got the best result among the feature detection algorithm in terms of accuracy and the FAST algorithm got the best result among the feature detection algorithm in terms of run time.
The Application of Passive Design Chart on the Analysis of Natural Ventilation of Low and Middle Income Flats Case Study Sky View Apartment and ‘Rusunawa’ Manis Jaya, Tangerang
Authors: Chandra B , Trisno R , Gunanta S , Widayati N , Susetyarto B M , Lianto F
Published: August 2019

The biggest environmental problem of this century is global warming where the earth’s surface temperature has increased since the pre-industrial era which damage the environment and threaten human life on earth. CO2 Emission is the most influential cause in global warming from the fossil fuel combustion process. Buildings have great impact towards the increasing of CO2 emission due to the electricity produced by the fossil fuel. On the other hand, Indonesian government has been trying to reduce the housing shortage of vertical housings or flats, specifically for medium and low income families. This study developed passive design charts for architects to design vertical housings which follow passive design principles to save energy consumption and provide living health and comfort. The researchers observed and analysed the design of two medium and low income flats in Tangerang using passive design charts. The research demonstrates that the design of the flats which comply with passive design requirement would not only cause energy savings in electricity, but also provide more comfort and healthy environment.
Mukolitik Activities Test Curcuma Aeruginosa Roxb Towards The Duck Egg White Through In Vitro
Authors: Ramdhani Susan Sintia , Fauziyah Kiki Rizki
Published: August 2019

Indonesia is the rich of natural resources country, a part of society use the plant as medicine toward various disease. One of them is curcuma aeruginosa roxb that contain of chemical saponin to occur the cough especially for cough with phlegm, so many people have used this plant. Mukolitik is some medicines that help to recover of viskosits sputum, especially on lower respiratory track. Methodology extraksi that used is infusa method, that is research method by searching simplisia on pan contain of boiled water, heat on the boiled water almost 15 minutes on the temper. Making of mucus analogue factitious by duck egg white, mukolitik activities test used 5 groups, that are positive control (acetylcysteine), negative control (aqua destillata), and simple test each concentrate 0,1%, concentrate 0,3%, concentrate 0,5%. From the research result show that infusa of curcuma aeruginosa roxb with concentrate 0,1%, 0,3%, 0,5% founded there is mukolitik activities. Infusa curcuma aeruginosa roxb concentrate 0,1% it was reach of positive control.
Measuring of the Population Happiness Index of Bandung City
Authors: Hidayat Yuyun , Purwandari Titi , Sukono  , Subiyanto
Published: August 2019

The progress of development based on economic indicators, is considered not reflect the level of welfare. Happiness Index is an indicator that measures of well-being subjectively is beyond GDP. Happiness Index is a composite index based on the level of satisfaction with the 10 essential aspects of life: health, education, occupation, household income, family harmony, the availability of free time, social relations, housing conditions and assets, the environment and safety conditions. Bandung Regional Development Planning Agency has cooperated with the Laboratory of Quality Control Department of Statistics University Padjadjaran to measure the level of happiness of the population of Bandung. Survey carried out in 30 Districts with the random sampling design that is intended to represent the level of happiness of the citizens of Bandung. Covered 151 villages in Bandung with a sample of more than 2 times than in 2014- SPTK-BPS Happiness index of Bandung in 2015 was 70.60. Calculations using the framework of the American Customer Satisfaction Index produces greater happiness index which is 74. Three aspects of life that have the highest contribution are Employment (11.91%), Social Affairs (11:39%) and Harmony Family (11.28%). The highest happiness index is related to family harmony. Strategic recommendations given are the increase in the program: employment and self-employment, housing, education, increased hedonic level of Affect, increase self-function.
On The Javanese Ethnoastronomy: Time Dimension on the Calendrical Inscriptions on Majapahit Era until Now
Authors: Prabowo A , Tripena A , Sugandha A , Riyadi S
Published: August 2019

The Saka calendrical inscriptions recorded the time journey in its own specific way, such as the use of suklapaksa and kresnapaksa, equipped with saptawara, pancawara and sadwara day names. At the next stage, it is addedd with wuku. During the Majapahit era, the time dimensional recording was expanded to include such elements as naksatra, yoga, karaṇa, muhūrta, dewatā, grahacāra, parweśa, mandala, and rāśi. This article traces the journey of usage of these time dimensions and completes it with the sculpture samples in some inscriptions from Majapahit era or after, and proposes it as the archipelago’s ethnoastronomy.
LC 50 of Rind Durian (Durio zibethinus murr) Extract to Mortality of Aedes aegypti Larvae
Authors: Arrizqiyani T , Hidana R , Sopian M A , Nurpalah R , Meri
Published: August 2019

One of durian parts is its rind which contains essential oil, flavonoid, saponin, cellulose, lignin, as well as 11 starch content. Those content can be used as a larvacide against Aedes aegypti larvae. The aim of this research is to analysis LC50 of durian rind extract to mortality of Aedes aegypti larvae. In this research, we used the experimental method. Aedes agypti larvae are 440 larvae instar III divided into 12 groups which are negative control, positive control, durian rind extract with a concentration of 1%-10%. To identified the influence of durian rind extract to mortality of Aedes Aegypti larvae, data were analyzed using Probit Analysis with the program IBM SPSS Statistic 21.0. On the Probit Analysis, durian rind extract that could kill larvae 50% (LC50) is at concentration 7,76%. Based on that analysis, durian (Durio zibethinus murr) rind extract has an influence to mortality of Aedes aegypti larvae.
Egg Weight and Hen Day Production (HDP) Layer Commercial at High and Low Altitude
Authors: Rahayu N , Widjastuti T
Published: August 2019

The research about “Egg weight and Hen Day Production (HDP) Layer Commercial at High and Low Altitude” was conducted at Bogor district (low altitude) and Majalengka district (high altitude). Location farms in Majalengka (altitude of about 1.200 meters above sea level; the average daily temperature: 15-220C); Bogor (height of about 140 meters above sea level; the average daily temperature 22-310C). This aims to determine the level of egg production (egg weight and Hen Day Production (HDP)). Data collection technique was purposive sampling. The data comes from eight cages in the high altitude and fifteen cage on low altitude. The observed data were analyzed descriptively and t test. The results showed that the high altitude environment (Majalengka) supports the achievement of the egg weight and Hen Day Production (HDP) optimal.
Research and Analysis on Gas Performance Index of Pine Particle Gasification
Authors: Niu Yonghong , Zhang Liqi , Li Yike , Wang Songsheng , Wu Huijun
Published: August 2019

The gasification test was carried out with pine particle as raw material, how temperature and steam flow rate affect gas gasification performance index was studied by using self-made gasification test system platform. The results show that the volume fraction of hydrogen increases, the volume percentage of carbon monoxide decreases and CH4 content decreases with the increase of temperature in steam flow rate of 0.3kg/h; Its the gas volume fraction of the trend is similar with the steam flow rate of 0.3kg/h, but the total gas energy with the temperature increased first and then reduced and the total gas increased by 28393.39KJ/Kg at 800 °C; The steam flow from 0.3kg/h to 0.6kg/h, the low calorific value of gas varies from 10 to14MJ/m3, the increase of the calorific value of gas is 2111. 36KJ/m3.
Performance Analysis of Single Cell Alkaline Electrolyser Using Mathematical Model
Authors: Sanath Y. , De Silva K. , Middleton Peter Hugh , Kolhe Mohan
Published: August 2019

The generation of hydrogen using electrolysis process with integrated renewable energy sources is very important specially in environmental aspects. In this paper, we demonstrate that, the performance of electrolysis process which could be enhanced by decreasing the distance between electrodes while changing the properties of electrodes. At first, two single cell alkaline electrolysers are fabricated using an in-house 3D printer. Thereafter, the best performing cell is selected by considering its performance through different experiments. Finally, the performance of the selected cell is analysed by changing the distance between electrodes and changing the properties of electrodes. Throughout this research study the SolidWorks is used as the design software while using Mathlab Simulink as a modelling tool.
Demand Response Management in the Presence of Renewable Energy Sources using Stackelberg Game Theory
Authors: Singh Pushpendra , Talwariya Akash , Kolhe Mohan
Published: August 2019

A demand response algorithm for electricity trading using renewable energy sources using stackelberg game methodology. Energy consumption is rapidly increasing day by day and to maintain the balance between energy consumption and generation needs solution to generate electricity from renewable energy sources and demand response methodology is essential. Demand response (DR) algorithm maintain the balance and reduce the peak to average energy consumption ratio. Large number of constraints (i.e. number of appliance at consumer end, different consumers, renewable energy sources, electric vehicles, etc.) interface make the DR algorithm complex. Stackelberg game theory is provided the solution based on one leader N follower strategy where leader first decide their best response and followers select their best response on the basis of leaders strategy and then leader again optimize the new strategy. Process is repeat again and again to find nash equilibrium between consumers and utilities. Proposed methodology increase the generation from renewable energy sources and manage the appliances. Simulation results showed that stackelberg game with demand response algorithm is effective for optimal energy consumption control of appliances.
Operational Analysis of Institutional Energy System for Developing a Micro-grid
Authors: Sharma Arvind , Kolhe Mohan , Konara K. M. S. Y. , Muddineni Kapil , Mudgal Ashwini , Garud Shirish , Ulltveit-Moe Nils
Published: August 2019

In most of the institutional buildings solar photovoltaic (PV) systems are used for fulfilling the local energy requirement. In this work, a typical institution with solar PV and battery energy storage is selected for analyzing the system’s operation to fulfil the institutional energy demand. To operate this energy system as a micro-grid, distributed generator is selected for fulfilling the institutional load demand in coordination with PV, battery and during the grid outage time. The operation of distributed generator has improved the system performance and coordinated the contribution among local energy resources e.g. PV energy and battery throughput. In this work, relative analysis of the intuitional energy system with and without distributed generator has been analyzed for annual load profile. It has been observed; the distributed generator is not only useful for supplying the energy to the essential load but also during the grid outage conditions. The analysis shows that if, the grid outage continues for longer period then distributed generator can provide the power to the institutional load and operate as a micro-grid. It has been observed, the battery energy throughput as well as effective utilization of local energy resources can be improved by installing distributed generator. The presented analysis is going to be useful for operating the institutional energy system as a micro-grid with different energy and power management strategies.
Study on wear behaviour of 4Cr4Mo2NiMnSiV die steel at high temperature
Authors: Renheng Han , Ning Li , Huang Yao , Li Zhiming , Bao Ziming , Zhao Chengzhi , Zhang Hexin
Published: August 2019

In this paper, with reference to the composition and properties of widely used H13 hot working die steel, and the amount of alloying elements in the steel is reasonably improved, and a new steel grade of 4Cr4Mo2NiMnSiV die steel is designed. A new process was designed and the wear properties of 4Cr4Mo2NiMnSiV die steel were studied. SEM, EDS and XRD were utilized to observe the microstructure of the worn surface, and the wear products were analyzed to discuss the wear mechanism. Conclusion illustrates the coefficient of friction of cast steel 4Cr4Mo2NiMnSiV gradually increases with increasing temperature. Wear of the 4Cr4Mo2NiMnSiV die steel is mainly caused by spalling and high-temperature oxidation. The surface oxidation products of high temperature wear samples are Fe2O3 and Fe3O4, and spalling debris caused by fatigue cracks is blocky and a small amount of long flake oxide. The oxide film generated during the high temperature wear process effectively reduces the wear of the material. Through comparison experiments, it is found that the 4Cr4Mo2NiMnSiV die steel of martensite and bainite structure has the best wear resistance, followed by martensitic alloy steel, and the wear resistance of H13 steel which is involved in comparison is lower than that of alloy steel.
Application of Design for Six Sigma (DFSS) In Sustainable Product Design: A Case Study on an Electric Kettle
Authors: Hassan Mohd Fahrul , Chandra Mohan Tillak R , Ismail Al Emran , Taib Ishkrizat , Mahmood Salwa , Kafuku John Mbogo
Published: August 2019

Sustainability is one the most crucial aspects currently focused by competitive companies who are coerced to consider their companies environmental, social and economic performance as requirements for product design. The intricate philosophy of designing physical objects, products, built environment and services to comply with the principles of social, economic and ecological sustainability is called sustainable product design. The main of this study is to improve product sustainability using Design for Six Sigma (DFSS) approach. This research primarily focuses on reviewing current sustainable product development approaches, developing a new framework to incorporate Design for Six Sigma into Sustainable Product Development and to conduct a case study on a product using this new framework. The chosen product is an electric kettle. An electric kettle is usually subjected to more extreme usage and physical damage than normal kettles. Most original internal components are very hard to come by in the replacement parts market making it a difficult product to repair and extend its life of use. The design tools used in this new framework are survey methodology, Quality Function Deployment (QFD), morphological chart and weighted rating method, SolidWorks 3D modelling and Sustainability Analysis besides DFM and DFA analysis software. Through applying the new framework under the DFSS approach a new electric kettle concept has been generated and it has been proven to be more sustainable than its predecessors proving that the new proposed framework is suitable for use in sustainable product development.
Microstructure mechanism of the hydroxyapatite densification process
Authors: Selimin M A , Lee T C , Haq R H A , Idris M I , Abdullah H Z
Published: August 2019

Hydroxyapatite (HA) is a well-known materials used as biomaterials in various applications. Numerous studied had been done for unlocking the pros and cons of this material. Sintering process has been used for extraction of pure HA that have similar Ca/P ratio to human bone mineral. This study aims to investigate the effect of sintering temperature on the properties of synthetic HA as well as to develop the mechanism of this densification process. Synthetic HA powder (Sigma-Aldrich #04238) was mixed together with binders, namely polyvinyl alcohol (PVA) and polyethene glycol (PEG) in wet mixing condition using ball mill. Pressed HA (15 g, 65 mm x 12 mm) was sintered with temperature ranging from 1000°C to 1200°C with heating rate and cooling rate of 10°C/min. It has been found that, pure HA was obtained when the HA was sintered with temperature ranging from 1000°C to 1200°C. The thermogravimetric analysis showed that there are there were two mass loss stages on the heating process from room temperature to 1250°C; 100-500°C (dehydroxylation) and 680-1080°C (decomposition). From the microstructure data, the mechanism of the densification process of HA was developed.
Performance evaluation of wearable antenna printed using syringe-based deposition system on fabric
Authors: Khirotdin R K , Mahadzir M A , Seman F C , Dahlan S H , Hassan N
Published: August 2019

Wearable antenna is recently known as part of clothing for communication purposes. Syringe-based deposition system had been proven capable of printing functional antenna structure but the printed antenna performances have not been discussed in details especially on resisting bending under various angles, curvature radiuses and wet conditions. Hence, this paper discusses the performance of printed antenna under various bending angles, curvature radiuses and wet conditions. The effect of several bending angles, curvature radiuses and wet conditions on resonance frequency, return loss and radiation pattern were discussed and compared accordingly with simulation. The antennas were observed to resonate best at frequency of 1.571 GHz as expected and the return loss obtained was at -20 dB that is 30% more than simulation which offers better performance. The radiation pattern obtained was as predicted since larger magnitude for the main lobe was produced than the side lobe. The antenna exhibited exceptional elasticity as it resists bending up to 30° angle and 5 cm of vertical convex curvature radius. Polyester fabric performed as a good candidate for textile wearable applications and water had only minor effect on antenna performance makes the proposed antenna suitable for humid condition.
Portable Mini Turntable for Close-Range Photogrammetry: A Preliminary Study
Authors: Thomas Adrian Savari , Hassan Mohd Fahrul , Ismail Al Emran , Abdul Haq Reazul Haq , Tajul Arifin Ahmad Mubarak , Ahmad Md Fauzi
Published: August 2019

Photogrammetry is a science formed of technology exhibiting over a century of historical features and evolution. Moving forward on techniques employed in acquiring data from object portrayed in imaging has refashioned significantly from a pure optic-mechanical literature to an utterly digitize workflow nowadays. Parallel to this, the handling becomes elementary and thus it is practicable for non-photogrammetric naturalist to realize on this practice that the ability to develop 3D modelling from captured 2D photographic images is a noteworthy feature. However, capturing perfect photographic images comprising of all detailed textures and features is a troublesome task. Therefore, in acquiring higher quality and precision modelling, photography procedure techniques are vital to be comprehended. On the other side, an innovative portable mini turntable is planned to be designed as one of the shooting strategies to aid in the photogrammetry process. In this paper, a preliminary study on portable mini turntable development that purposely for close-range photogrammetry is discussed. This study is a part of the design process where several important considerations are identified to ensure the successful of the portable mini turntable development. Based on this study, the future works will be easily executed with a correct justification.
Detection of thin high contrast dielectrics from boundary measurements
Authors: Ambrose David M , Gupta Eesha Das , Moskow Shari , Ozornina Valentina , Simpson Gideon
Published: August 2019

We develop an efficient inversion method for thin high contrast scatterers when the contrast is on the order of the reciprocal of the thickness of the scatterer. We extend prior theory for the Helmholtz equation to arbitrary bounded domains and multiple scatterers in two and three dimensions to obtain a fast forward solver with complexity of one dimension lower. The lower-dimensional approximation is then paired with optimization to form the basis for parameter inversion. We show numerical results for the forward and inverse problems in two dimensions and describe extensions to Maxwell.
WITHDRAWN: Dynamic response of concrete slab under blast covered with aluminium foam: Numerical investigation
Authors: Zhang Jinhua , Chen Li , Fang Qin , Zhang Yadong
Published: August 2019

This article was withdrawn on 4 September 2019 at the request of the authors.

This paper is focused on the dynamic properties of concrete slab under blast. Firstly, a numerical model of reinforced concrete slab covered with aluminium foam is set up. The hydrocode, LS-DYNA, is employed in simulation. Secondly, numerical simulations are carried out to validate the numerical model. Thirdly, investigations are conducted to reveal the dynamic response of the protected concrete slab. The relationships between the configurations of the protecting foam layer and the dynamic response of the concrete slab are studied. The deformation mode of the protected slab is discussed. Results show that a perfect match between the protecting and the protected layers is critical for the improvement of the blast resistance. A mismatch can lead to unexpectedly serious damage.
Neuropsychiatric Symptoms in Parkinson’s Disease with and without Mild Cognitive Impairment
Authors: Bocanegra Y , Baena A , Carmona J , Aguirre D C , Pineda D , Buriticá O , Quiroz Y , Lopera F
Published: August 2019

Objective

Neuropsychiatric symptoms (NPS) are common clinical features of patients with Parkinson’s disease (PD). However, such symptoms in non-demented PD patients have scarcely been investigated. To address this issue, we describe the neuropsychiatric profile in PD patients with and without Mild Cognitive Impairment (MCI).

Participants and Method

Eighty non-demented PD patients were included. The patients were divided into two groups depending on the presence or absence of MCI (PD-MCI and PD-nMCI, respectively). MCI diagnosis was made according to the Movement Disorder Society Task Force Level I criteria. NPS were evaluated using the Neuropsychiatric Inventory (NPI). For each domain, the presence and magnitude of symptoms (frequency x severity) was calculated. The total NPI score was also computed, in which higher scores suggest greater behavioral disturbance.

Results

PD-nMCI (n = 59, 74%) and PD-MCI (n = 21, 26%) groups were similar in the disease stage and years since diagnosis. In contrast with the PD-nMCI group, participants in the PD-MCI group were older. Fourteen PD-MCI (66%) and 45 PD-nMCI (76%) patients reported at least one neuropsychiatric symptom in the previous month. In both groups, the most frequent NPS were sleep disorders, depression, anxiety, apathy, irritability, and disinhibition. Additionally, the proportion of these symptoms between groups did not differ significantly (p > 0.05). There was only a tendency of greater score in the disinhibition subscale in PD-MCI group (p < 0.02). In both groups, NPS were not associated with clinical variables (years since diagnosis, Unified Parkinson's Disease Rating Scale -III) after adjusting for age.

Conclusions

Preliminary findings suggest that NPS are frequent in PD patients independent of the degree of cognitive impairment, and they may encompass non-motor features of the clinical spectrum of the disease. Further longitudinal investigations are needed to determine whether such symptoms may predict the cognitive decline in these patients.
Quality of Education over Level of Education in Associations with Executive Functioning in Older American Indians
Authors: Burks A , Avila J , Kaz G , Romero A , Verney S
Published: August 2019

Objective

Education is strongly associated with neuropsychological performance, with many tests normed to education level. Educational achievement, often measured in years of school completed, is associated with executive functioning and overall health. However, education level does not account for the quality of education, which may be a better educational index for racial/ethnic minority groups. Older American Indians (AIs) suffer disproportionate rates of many age-related chronic diseases, and many have suffered traumatic educational experiences, such as mandatory boarding schools away from families and tribes that were focused on assimilation rather than subject knowledge. This study investigated the relationship between executive functioning and indices of the quality of education in older AIs.

Participants and Method

Participants were recruited from a southwestern urban area, who self-identified as AI, aged 55 to 80 years (n = 42). Participants who completed questionnaires, interviews, achievement (Wide Range Achievement Tests, WRAT), and executive functioning tests (WASI and verbal semantic fluency, VSF) over two sessions were included in this analysis.

Results

Educational achievement was positively correlated with executive functioning measures. WRAT Reading scores were significantly associated with WASI Matrix scores. WRAT reading scores were also significantly associated with VSF animals and plants, but not VSF fruits and vegetables scores. Education level was positively correlated with WASI Matrix, WASI Similarities, and VSF plants scores, but to a lesser extent than WRAT Reading scores.

Conclusions

Our findings suggest that, for AIs, education quality may be a better measure of education than education level. WRAT reading, as an index of education quality, had a stronger correlation with executive functioning measures. These results are consistent with the literature on other racial/ethnic groups and highlight the need for further exploration of cultural context.
Quédate Quieto Niño: Bilingualism and ADHD Presentation
Authors: Del Corral Winder S , Cook A J , Poulakis M
Published: August 2019

Objective

This poster will focus on findings pertaining to the relationship between bilingualism and Attention Deficit/Hyperactivity Disorder (ADHD), a gap that currently exists in cultural neuropsychology. This poster will introduce the literature regarding bilingualism and the development of individuals’ executive functioning throughout their lifespan. Bilingual individuals often have enhanced executive functioning. This review will provide a foundation for the present study. Then, we will compare racial and ethnic differences in ADHD diagnosis and treatment. ADHD diagnoses tend to be higher for White children than for Hispanics raised in a non-English household. These findings suggest that bilingualism may affect the diagnosis and the expression of ADHD.

Participants and Method

This poster will consider the acquisition of executive control skills and language. Since ADHD and language develop before adolescence, this poster will focus on individuals between the ages of 3 and 12. This will allow us to better understand how language acquisition and the factors that surround language affect the expression of ADHD.

Results

The poster will present results from the literature review to better understand the results of bilingualism on ADHD. Bilinguals tend to outperform monolinguals in tasks related to reasoning and problem solving. However, bilinguals tend to struggle in tasks related to vocabulary retrieval. This is key because individuals with ADHD tend to perform worse on tasks related to executive functioning. The poster will display different methods used in past research in order to expand future implications.

Conclusions

ADHD appears to interrupt some skills that bilingual individuals possess. This interference may affect ADHD symptom expression and performance on neuropsychological testing. This may lead to misdiagnoses and a resulting lag in the provision of effective treatments for bilingual children. Thus, this poster will propose alternatives and implications for practice.
Demographically-Corrected Norms for the Grooved Pegboard Test and Finger Tapping Test in monolingual Spanish speakers from the U.S.-Mexico Border Region
Authors: Heaton A , Gooding A , Cherner M , Umlauf A , Franklin D , Rivera Mindt M , Suarez P , Artiola i Fortuny L , Heaton R K , Marquine M J
Published: August 2019

Objective

We developed demographically-corrected norms for US-dwelling, Spanish-speaking Hispanics on two widely used tests of motor skills - the Grooved Pegboard Test (Pegs) and Finger Tapping Test (Tapping). We then examined the effects of applying established norms for non-Hispanic Caucasians (NH Whites) and non-Hispanic African Americans (NH Blacks) on motor test results from our Hispanic population.

Participants and Method

254 participants living in the US-Mexico border region of San Diego, CA and Tucson, AZ completed Pegs, and a subset (n = 183) completed Tapping. Age ranged from 19-60 and education from 0-20 years, with 59% women. Raw test scores were converted to demographically-corrected T-scores with a fractional polynomial procedure and compared to a fitted curve for the original data.

Results

Findings included significant main effects of education on both tests (p < .001), and of age for Pegs (p < .001). There was a significant interaction of sex and age on Tapping, such that older age was associated with lower scores in men only (p = .02). The resulting normative T-scores were confirmed to be free from demographic influences. Using a T < 40 cut point, rates of impairment in the Spanish speaking normative sample for dominant (D) and nondominant (ND) hands, respectively, were 17% and 14% for Pegs, and 12% and 10% for Tapping. Applying existing norms for NH Whites and NH Blacks to the raw scores of Spanish speakers generally yielded lower impairment rates on all measures, with one exception, Pegs ND, for which NH White norms overestimated impairment (23%).

Conclusions

Normative standards from other groups are not a good fit for interpreting motor test performance in this Hispanic population, which in the current instance would have generally underdiagnosed fine motor impairment. These findings underscore the importance of appropriate, population-specific normative data- even for tests of motor ability.
Intellectual, Psychological, and Clinical Predictors of Quality of Life in Patients with Epilepsy from a Level IV Epilepsy Center in South Florida
Authors: Miranda M , Kaur S , Slugh M , Bermudez-Andrews C , Millan C , Fernandez – McInerney K , Kanner A M , Velez Ruiz N , Ribot R , Lowe M , Palomeque M , Detyniecki K , Rey G
Published: August 2019

Objective

To examine clinical, cognitive, and psychological predictors of Quality of Life (QOL) among Hispanics and non-Hispanics with epilepsy.

Participants and Method

Data was collected from 90 patients (52 Hispanic; H, 38 Non-Hispanic; NH) diagnosed with epilepsy and referred for neuropsychological evaluation that included measures of depression (BDI-II), anxiety (BAI), and QOL using the Personal Impact of Epilepsy Scale (PIES). We conducted multiple linear regression models with patient’s full-scale IQ, age of seizure onset, duration of seizure disorder, and anxiety and depression symptom severity entered as predictors, with the PIES as outcome measure.

Results

There were no significant differences between H and NH on any demographic or clinical variable except for longer duration of seizure disorder (t = 2.20, p = 0.03) in H. For the complete sample, higher FSIQ predicted better QOL in relation to the perceived disabling effects of seizures (β = .28, p =.02), higher BDI-II scores predicted more negative medication side effects and greater mood related disruption in QOL (β = -2.27, p =.03; β = -3.82, p =.00), and higher BAI scores were the best predictor for worse overall QOL (β = -.29, p = .05). When the sample was divided according to ethnic background, longer seizure duration was associated with the adverse effects of less medication in the H group (β = .32, p =.04), with all other findings being identical to those of the complete sample. When results for NH patients were analyzed, none of the intellectual, psychological and clinical variables were significantly associated with any of the QOL scales; however, the relationship between the BAI and comorbid mood dysfunction approached significance (β = -1.45, p = .059).

Conclusions

Our data indicates that overall QOL was primarily predicted by the severity of anxiety symptoms, but not influenced by overall intelligence, symptoms of depression, and clinical seizure variables.
Neuropsychological Profiles to Achieve Cultural Justice for Hispanic Children with Specific Learning Disabilities (SLD)
Authors: Moreno-Torres M
Published: August 2019

Objective

The purpose of this poster is to illustrate the use of a method based on a neuropsychological pattern of strengths and weaknesses (PSW) to identify specific learning disabilities (SLD) in Puerto Rican Hispanic children. The Discrepancy/Consistency Method (D/CM) (Naglieri, 2011; Naglieri & Otero, 2017) helps to identify neuropsychological processes underlying academic difficulties instead of acquired skills, which are determined by culture and language. The D/CM is a reliable approach to evaluate cultural and linguistic minorities.

Participants and Method

This case series reviewed the records of eight children, between the ages of 6 to 15, diagnosed with SLD. Reviewed neuropsychological data included the Cognitive Assessment System (CAS-2) to assess neuropsychological processes and WJ Bateria-III for academic achievement. All patients were evaluated in a private practice clinic by a neuropsychologist.

Results

All children performed between low average to below average (impaired) in reading measures. Seven of them also presented low scores in math and writing measures. In terms of neuropsychological processes, the major difficulties were found in successive processing (M = 82; range 69-93), followed by planning (M = 85; range 62-100) and attention (M = 87; range 65-123). Using the D/CM, it was possible to link a clear neuropsychological PSW with their academic difficulties.

Conclusions

The D/CM permits the attainment of a precise diagnosis to identify SLD in Hispanic children. The identification of PSW is important to provide fair interventions for children from culturally diverse backgrounds – many of who require a reliable and valid method to ascertain proper diagnoses. Federal regulations encourage the use of assessment approaches that include basic psychological measures sans cultural and language discrimination. This case series demonstrates the value of the D/CM as a model to achieve cultural justice and equity in the evaluation and intervention of the Hispanic population.

References

Naglieri, J. A. (2011). The discrepancy/consistency approach to SLD identification using the PASS theory. Naglieri, J. A., & Otero, T. M. (2017). Essentials of CAS2 assessment. John Wiley & Sons.
Subjective Cognitive Decline Predicts Concurrent Cognition in Hispanics, but not in Non-Hispanic Whites: A Pilot Study
Authors: Nakhla M , Pulido B , Salcedo-Borrego C , Lewis J , Cohen L , Yassai-Gonzalez D , Marquine M J , Schiehser D , Salmon D , Zlatar Z
Published: August 2019

Objective

Subjective cognitive decline (SCD) is prevalent among older adults and may be indicative of future cognitive decline. However, the expression of SCD may vary across ethnic groups due to factors such as educational level, awareness of decline, and depression. This study explored whether SCD scores predicted concurrent cognition in Hispanic and Non-Hispanic White older adults, after adjusting for variables known to affect this relationship.

Participants and Method

Twenty-two Hispanic (mostly Mexican-American) and 27 Non-Hispanic White older adults were recruited from ongoing studies at the University of California, San Diego. The “My Cognition” version of the Subjective Cognitive Decline Questionnaire (SCD-Q) developed in Spain measured SCD (modified to “Mexican” Spanish and administered in language of preference - 55% in Spanish). The Mattis Dementia Rating Scale (DRS) measured global cognition and the Geriatric Depression Scale (GDS) measured mood.

Results

A hierarchical regression examined if ethnic group moderated the association between SCD-Q total score and DRS total score after adjusting for age, gender, education, and GDS score. Ethnicity moderated the relationship between SCD and DRS (β = -1.071, p = .024). Higher SCD-Q scores significantly predicted lower DRS scores in Hispanics (β = -.97, p < .01), but not in Non-Hispanic Whites (β = -.23, p = .33), after adjusting for co-variates. Education level was the only significant predictor of DRS scores in the Non-Hispanic group.

Conclusions

Preliminary findings indicate that the SCD-Q may be a sensitive predictor of concurrent cognitive function in Hispanics, compared to Non-Hispanic Whites, suggesting that the SCD-Q may be culturally sensitive. Future studies should replicate these findings and investigate ethnic differences in the correlates of SCD (i.e., education, acculturation, depression reporting), which may account for the current findings. Importantly, future research should investigate if SCD can predict future cognitive changes in Hispanics.
Delay Discounting and Inhibition in Adults with Type 2 Diabetes from the Border Region of Tijuana
Authors: Negrete Cortés A J , García Gomar M L , Montoya Vázquez A E , Fernadez Ruiz P A
Published: August 2019

Objective

To evaluate the function of delay discounting, impulsiveness, and behavioral inhibition in adults with type 2 diabetes (DM2) in Mexico.

Participants and Method

Twenty-two adults (14 with DM2 and 8 healthy controls) living in Tijuana (Mexico) participated in the study (Age: M = 49.3, SD = 7.27; 63.3% female; Monthly Income: M = 352.2, DE = 202.3). DM2 adults were divided in two groups: one with secondary medical conditions (DM2+) and one without secondary medical conditions (DM2-). No differences were found regarding education (Chi-Sqr = 4.3, p = .22) or monthly income (Chi-sqr = 2.32, p = .31). Each participant completed the Barratt Impulsiveness Scale (BIS-11; Barratt, 1985), the Hayling Test, and a delay discounting task on the procedure of adjusting the immediate amount (AIA) over two hypothetical quantities of money.

Results

Significant differences were found in cognitive impulsivity evaluated through the BIS-11 between the three groups (KW = 6.21, p = .04). No differences were found regarding the k-value between the three groups (Chi-sqr = 1.5, p = .47), nor in Area Under the Curve (Chi-sqr = .65, p = .72) nor for the value of s (Chi-Sqr = .81, p = .66) in the amount of 4 thousand pesos. No significant differences were found in the Hayling Test - either in the score (Z = 1.74, p = .08) or in the reaction times (z = 0.81, p = .41).

Conclusions

The data show that there are no differences in delay discounting or inhibition between groups. The only difference is in cognitive impulsivity that has been referred as a personological characteristic. However, in prior studies, there is evidence that hyperbolic function in intertemporal tasks among adults with and without diabetes shows differences in their calculated parameters, as well as in inhibition tasks. It is recommended to increase the sample size and consider cross-cultural aspects since the sample of the study belongs to a vulnerable population in the border region.

References

Barratt, E. S. (1985). Impulsiveness subtraits: Arousal and information processing. Motivation, emotion, and personality, 5, 137-146.
Normative Data for Selected Subtests of the WAIS-R in a Spanish-Speaking Adult Population Living in the U.S. – Mexico Border Region
Authors: Scott T , Morlett Paredes A , Taylor M , Umlauf A , Artiola i Fortuny L , Heaton R K , Cherner M , Marquine M J , Rivera Mindt M
Published: August 2019

Objective

Adaptations of the Wechsler Adult Intelligence Scale, Revised (WAIS-R) and accompanying norms exist for a limited number of Spanish-speaking populations, but none are available for US-dwelling Spanish speakers of Mexican origin, who make up the largest proportion of Latinas/os in the US. As part of a larger test adaptation and norming effort for Spanish-speakers from the US-Mexico border region, we generated and investigated demographically adjusted interpretive norms for selected WAIS-R subtests.

Participants and Method

Participants included 183 community-dwelling, primarily Spanish-speaking individuals, aged 20 to 55 (education range: 0-20 years; 58% female), who were residing in the US-Mexico border region. Participants completed the WAIS-R Spanish version (Block Design, Arithmetic, and Vocabulary subtests) as part of a larger neuropsychological battery. Demographically adjusted T-scores were calculated for these subtests using fractional polynomial equations, which controlled for age, education, and sex. We examined rates of neurocognitive impairment (T < 40) in our sample derived from the present demographically adjusted Spanish speaking norms and from the existing WAIS-R demographically adjusted norms for English-speaking Non-Latina/o White and Black adults.

Results

Based on the normalized distribution of T-scores, the newly developed regional Spanish-speaker norms yielded subtest rates of impaired performance between 13-16% (i.e., within the expected -1 SD). By comparison, the proportion of impaired subtest performances was between 4-6% when applying the existing English-speaking norms to our sample.

Conclusions

Regional normative data will improve interpretation of test performance on selected WAIS-R subtests for Spanish-speakers living in the US and will facilitate a more valid analysis of neuropsychological profile patterns in this population. Cross-validation with Spanish-speakers in other regions and/or with other national origins is needed.