bluuebunny/crossref_metadata_2025 huggingface dataset:
Análise da criação de valor por meio do EVA® e o retorno das ações das companhias real estate no Brasil
Authors: Hedson da Costa Francisco , Ataíde Sampaio Rossana Medeiros , Vasconcelos Marcelo Rangner , De Lima Tavares Adilson
Published: April 2017

Nos últimos anos, o setor de real estate do Brasil cresceu e se consolidou, ocasionando a abertura de capital de várias companhias deste segmento. Esse cenário faz surgir a necessidade de se avaliar o desempenho financeiro e a criação de valor deste setor. Diante desta situação, o presente estudo tem o objetivo verificar qual a relação entre o Valor Econômico Agregado (EVA®) e o retorno da ação de cada empresa do segmento de Construção Civil que compõem o Índice BM&FBOVESPA Imobiliário (IMOB). Quanto aos procedimentos metodológicos, trata-se de uma pesquisa bibliográfica, descritiva e como também um estudo de multicaso, contemplando nove empresas que compõem o referido índice em 2015. A capacidade de geração de valor desse setor foi analisada por meio do Valor Econômico Agregado (EVA®), em que foram coletadas informações das empresas analisadas referentes aos exercícios de 2010 a 2014, com o propósito de obter o Retorno sobre o Investimento (ROI), o Valor Econômico Agregado (EVA®) e o Retorno da Ação. De forma geral, os resultados da pesquisa que o desempenho médio das empresas, nos referidos exercícios, representa a destruição de valor, proporcionado pelo impacto do custo de capital, que foi superior aos resultados líquidos das Companhias. Por fim, o EVA® nominal e o Retorno da Ação estão negativamente correlacionados. Por outro lado, o ROI residual e o Retorno da Ação estão correlacionados positivamente de modo significativo.
Análise das exportações do setor mineral brasileiro
Authors: Franck Alison Geovani Schwingel , Schuh Aline Beatriz , Silva Rodrigo Abbade da , Coronel Daniel Arruda
Published: April 2017

Este trabalho buscou analisar o padrão de especialização das exportações do setor mineral brasileiro, identificando os setores produtivos mais dinâmicos, no período entre 1999 e 2015. Para isso, calcularam-se os indicadores de Taxa de Cobertura das Importações (TC), de Comércio Intraindústria (CII) e de Concentração Setorial das Exportações (ICS). Os dados foram coletados no Sistema de Análise de Informações do Comércio Exterior (Alice Web). Os resultados indicaram que o Brasil tem poucos grupos minerais competitivos na sua pauta exportadora e a mesma é concentrada em poucos setores. Com isso, foi possível constatar que os setores mais competitivos de minério foram nióbio, ferro, manganês, ouro semimanufaturado, alumínio, cobre e outros.
O ensino da contabilidade para não contador: como os estudantes de administração e economia aprendem
Authors: Floret Ivanice Teles
Published: April 2017

O Ministério da Educação (MEC) institui as Diretrizes Curriculares Nacionais do Curso de Graduação em Administração, as quais determinam que essas graduações devem possibilitar a formação do profissional, com pelo menos competências e habilidades em equacionar soluções, pensar estrategicamente e exercer, em diferentes graus de complexidade, o processo da tomada de decisão. Sob esse aspecto, este estudo objetivou, principalmente, observar na percepção dos discentes quais são as formas de aprendizado que lhes são favoráveis para aquisição de conhecimentos alusivos à Contabilidade. A pesquisa foi realizada por meio de uma pesquisa de campo em 4 renomadas Universidades do Brasil, situadas em Curitiba, Pernambuco, Rio de Janeiro e São Paulo. Foi utilizado um questionário contendo perguntas com afirmações positivas e negativas. O programa Statistical Package for Social Sciences (SPSS), versão 20.0 foi utilizado para processamento dos dados obtidos, cujas análises foram submetidas ao teste Mann Whitney. Os resultados mostram que, na percepção dos alunos, o aprendizado em Contabilidade é mais eficaz quando o ensino está associado à resolução de exercício e atividades práticas.
Promoción del trabajo colaborativo mediante la integración de las tecnologías digitales en el contexto escolar
Authors: Baltodano Enríquez Manuel
Published: April 2017

Este ensayo presenta algunas estrategias para el desarrollo de proyectos pedagógicos mediante la promoción del trabajo colaborativo con el apoyo de las tecnologías digitales. Durante varios años, el Departamento de Investigación, Desarrollo e Implementación de la Dirección de Recursos Tecnológicos en Educación del Ministerio de Educación Pública de Costa Rica, ha promovido diversas iniciativas para potenciar ambientes de aprendizaje colaborativo entre educadores y estudiantes, mediante el aprendizaje en red y el intercambio intercultural de estudiantes de distintas zonas del país. Todo lo anterior tiene sentido, cuando los proyectos educativos tienden a la resolución de problemas comunitarios y a la atención de los intereses de los actores curriculares involucrados. Desde la perspectiva anterior, se propone el desarrollo de proyectos pedagógicos a partir de cinco fases: la preparación, la planificación, la implementación, la evaluación y la divulgación. Con estas fases, se espera generar expectativas para el desarrollo psicomotor, socioafectivo y cognitivo de los actores curriculares que participan en los proyectos.
Increasing Army Supply Chain Performance Using an Integrated End-to-End Metrics System
Authors: Tseng Fan , Burns Laird , Simpson James , Berkowitz David
Published: April 2017

Army Materiel Command and the University of Alabama in Huntsville partnered to develop an integrated end-to-end performance metrics system. The integration includes data pulls from multiple data systems into a metrics calculation and aggregation system that generates strategic performance metrics such as Customer Wait Time (CWT), with capabilities spanning from bottom-up supply chain performance aggregation capabilities to in-depth traceability to source (tactical) level data and documents. To support the best national defense, we must ensure that our warfighters receive the supply support they need in a timely and efficient manner. Supporting this effort requires a near-real-time system that measures and reports on supply chain strategic performance characteristics such as CWT. Data integrity is an integral part of the process, as is reaching common agreement on appropriate data sources, algorithms to calculate metrics, and the design of a visual dashboard that supports leadership decisions and performance evaluation, with drill-down capability for lower level decision making.
Impaired Glutamatergic Neurotransmission in the Ventromedial Hypothalamus May Contribute to Defective Counterregulation in Recurrently Hypoglycemic Rats
Authors: Chowdhury Golam M.I. , Wang Peili , Ciardi Alisha , Mamillapalli Ramanaiah , Johnson Justin , Zhu Wanling , Eid Tore , Behar Kevin , Chan Owen
Published: April 2017

The objectives of this study were to understand the role of glutamatergic neurotransmission in the ventromedial hypothalamus (VMH) in response to hypoglycemia and to elucidate the effects of recurrent hypoglycemia (RH) on this neurotransmitter. We 1) measured changes in interstitial VMH glutamate levels by using microdialysis and biosensors, 2) identified the receptors that mediate glutamate’s stimulatory effects on the counterregulatory responses, 3) quantified glutamate metabolic enzyme levels in the VMH, 4) examined astrocytic glutamate reuptake mechanisms, and 5) used 1H-[13C]-nuclear magnetic resonance (NMR) spectroscopy to evaluate the effects of RH on neuronal glutamate metabolism. We demonstrated that glutamate acts through kainic acid receptors in the VMH to augment counterregulatory responses. Biosensors showed that the normal transient rise in glutamate levels in response to hypoglycemia is absent in RH animals. More importantly, RH reduced extracellular glutamate concentrations partly as a result of decreased glutaminase expression. Decreased glutamate was also associated with reduced astrocytic glutamate transport in the VMH. NMR analysis revealed a decrease in [4-13C]glutamate but unaltered [4-13C]glutamine concentrations in the VMH of RH animals. The data suggest that glutamate release is important for proper activation of the counterregulatory response to hypoglycemia and that impairment of glutamate metabolic and resynthetic pathways with RH may contribute to counterregulatory failure.
POLA RELASI BISNIS DAN POLITIK DI INDONESIA MASA REFORMASI: KASUS RENT SEEKING
Authors: Solihah Ratnia
Published: April 2017

Patterns of business and political relations in the reform period is one form of transformation of the pattern of political and business relations of the New Order. This relation involving actors in the political and economical sector through the actions taken to share the resources of the state, where the practice of rent seeking is done openly in a democratic regime. Rent seeking in the reform period was transformed through regime change, from the authoritarian New Order regime to democratic regime in reform period. In the transformation process, rent seeking growing not only among economical and political / governmental actors at the central level but also extends to localactors. The shift in the relation of power from the center to the regions shifting the map of corruption that was once centralized and then spread to smaller level of area. Pattern of business and political relationships was transformed due to the reorganization of the business actors during the New Order to the current political situation to keep control of economic resources; The appearance of new businesses as new economic powers; and the presence of political/governmental actors still dominated by predatory power relations and clientelism.
Acquisition of academic literacy in an Engineering communication course: Integration of English for Specific Purposes (ESP) and Systemic Functional Linguistics (SFL)
Authors: Devira Merina
Published: April 2017

This study investigated academic literacy practices by an EFL student at an Engineering Communication course in the University of Adelaide, Australia. It focused on finding a description of engineering written communication skills designed in the specific course and investigating the student’s response in the construction of a specific text type in the engineering community. A qualitative case study method was used where the data were taken from classroom observations, the student’s interviews, his writings, and other supporting data, such as a course booklet and several PowerPoint slides. The findings showed that working in a group discussion at the workshop sessions was perceived as the most useful academic literacy practice in acquiring engineering communication skills. It also revealed that academic literacy practices, such as accessing MyUni, using databases for a specific discipline, recognising graphic skills and using effective reading strategies were considered by him as new and useful practices in an academic culture which helped him execute written engineering communication assignments into a cohesive and coherent argumentative text. Overall, although he had different perceptions before and after completion of the course, he viewed the course design positively. Some ideas on how the course developers or tutors could match the course design with his practical needs were offered, such as mutual collaboration with the English lecturers who were providing the course and the implementation of a program of academic English for first year students.
Reading comprehension achievement: A comparative study between science and social science students
Authors: Muliawati Ida
Published: April 2017

This study was aimed at finding different achievements in reading comprehension between the science and social science students at a senior high school in Banda Aceh. It was also aimed at finding factors that influenced their achievements by using a comparative study involving 40 second grade (year 11) students of the school. The instruments used for this study were a reading comprehension test and a questionnaire searching for answers about language attitude, intelligence and motivation of the students towards the English subject. The result from the t-test was 3.67 which were higher than t-table of 2.042 at the level of significance of 0.05. This indicated that the levels of students’ achievement in reading comprehension in the two programs were quite different. The study also found and discussed the factors that made positive differences in achievement of these two groups of students in reading comprehension; they were positive attitudes toward the language, high motivation and higher intelligence.
Peran Pupuk Organik dalam Meningkatkan Efektivitas Pupuk NPK pada Bibit Kelapa Sawit di Pembibitan Utama
Authors: Sari Vira Irma , , Sudradjat , , Sugiyanta , , Sudradjat , , Sugiyanta
Published: April 2017

Main nursery is the first step affecting oil palm’s age and productivity. Good plant growth will produce high quality and yield of oil palm. The demand of oil palm seedlings for extensification and replantation increases continuously, and therefore this need to be supported by precise fertilization programs. The objectives of this experiment were to investigate the role of organic fertilizer and to obtain the best organic-NPK fertilizer combination in increasing the effectiveness of the use of NPK fertilizer for the growth of oil palm (Elaeis guineensis Jacq.) seedling in the main nursery. The experiment was conducted from December 2011 to September 2012 at IPB Teaching Farm Dramaga Bogor. The treatment was arranged in a factorial randomized block design with three replications. The first factor was amount of organic fertilizer consisted of 0:6, 1:6, 2:6, and 3:6 of the soil volume (6 kg). The second factor was NPK fertilizer rates, i.e., 0.0, 127.5, 255, and 382.5 g NPK per plant. The results showed that application of organic fertilizer increased the effectiveness of NPK fertilizer and could be a substitute for NPK fertilizer in oil palm seedlings. The best combination treatment was 2:6 (organic fertilizer:top soil) and 382.5 NPK g per plant with effectiveness of 158.9, 209.1 and 170.1 % for plant height, leaf number and stem diameter, respectively. The efficiency of N, P, and K application were 56.2, 11.1, and 29.0% for the same variables, respectively. Based on morphological variables, recommended rate of an NPK compound fertilizer 15-15-15 was in the range of 396.05 g per seedling for eight months. Recommended NPK were 7.00, 12.59, 37.58, 56.41, 36.74, 87.00, 86.60, and 72.97 g per seedling for first to eighth months, respectively.

Keywords: chlorophyll, fertilizer recomendation, morphological and physiological response, nutrient balance
Induksi Poliploidi Phalaenopsis amabilis (L.) Blume dan Phalaenopsis amboinensis J. J. Smith dengan Kolkisin dalam Kultur In Vitro
Authors: Rahayu Eka Martha Della , Sukma Dewi , Syukur Muhamad , , Rawati
Published: April 2017

ABSTRACT

Phalaenopsis amabilis (L.) Blume and Phalaenopsis amboinensis J.J. Smith (diploid) are important in Phalaenopsis breeding. Polyploid species are needed for crossing with polyploid hybrid varities of Phalaenopsis. The objectives of this study were to obtain effective concentration of colchicine to induce polyploidy and to produce polyploid plantlets of P. amabilis and P. amboinensis. Experiment was arranged in randomized complete block design with one factor, the colchicine concentration. Protocorms of P. amabilis and P. amboinensis were immersed in half strength of Murashige-Skoog (1/2 MS) liquid media added with colchicine (0; 0.5; 5; 25; 50, and 75 mg L-1) for 10 days. The results showed that higher concentration of colchicine on both species did not have significant effect on the survival of the plantlets at 24 weeks after treatment. The average number of leaves and roots of colchicine treated planlets from both species were less than the control plantlets. Immersing protocorm in colchicine at concentration of 50 mg L-1 for 10 days was effective in inducing polyploid plantlets of P. amabilis and P. amboinensis with the frequency of 33.3% and 40%, respectively. Polyploid plantlet has larger stomata size and lower stomata density than the diploid ones.

Keywords: chromosome number, colchicine, polyploid, protocorm, stomatal density, stomatal size
Pengaruh Naungan dan Zat Pengatur Tumbuh terhadap Pertumbuhan dan Hasil Tanaman Kentang Kultivar Atlantik di Dataran Medium
Authors: Hamdani Jajang Sauman , , Sumadi , Suriadinata Yayat Rochayat , Martins Lourenco
Published: April 2017

ABSTRACT

Use of shade on the cultivation of  potato in medium altitude is expected to reduce both light intensity and temperature, and therefore is more suitable for potatoes to grow in medium altitude. While the use of growth regulators subtances improving the process of assimilate distribution from the leaves to the tuber. Therefore  use of shade followed by plant growth regulators applications are expected to increase of  growth and yield. The objectives of the experiment were to determine growth and yield of  potato cultivar Atlantik grown  at medium  altitude with different types of shading and  plant growth regulators. The experiment was conducted at an experimental station of the Faculty of Agriculture, Padjadjaran University, Jatinangor, Sumedang, at an altitude 685 m asl. The experiment was arranged in  a split plot design  consisting of two factors and three replications. The main plots were types of shading (without shading, paranet 45%, UV polyethylene, and corn plant) and the sub plots were combination of plant growth regulators (benzylaminopurine + paclobutrazol), (benzylaminopurine +chloro choline chloride), benzylaminopurine, paclobutrazol, chloro choline chloride).  The results showed that the effect of interaction between shading and plant growth regulator on growth and yield of the potato were not significant. Paranet shade and corn plant shade  increased plant height, leaf area index, tuber weight per plant, yield  per hectar and tuber grade A of potato cultivar Atlantik. Corn plant shading gave potato yield 21.6 ton ha-1 with 64% grade A tuber. Paclobutrazol decreased potato plant  height,  but  increased  number  of  tuber per plant and yielded highest tuber weight of 702.1 per plant (23.3 ton ha-1 ), with 70.9% grade A tuber.    

Keywords: Benzylaminopurine, microclimate, paclobutrazol, temperature
Fenologi, Morfologi, dan Hasil Empat Aksesi Kacang Bambara (Vigna subterranea (L.) Verdc.)
Authors: Manggung Raden Enen Rindi , Qadir Abdul , Ilyas Dan Satriyas
Published: April 2017

ABSTRACT

Characterization and evaluation of genetic potential of bambara groundnut accessions is very important in order to obtain accessions with high yield potential and early maturity. The objective of this research was to study the phenology, morphology, and yield of four bambara groundnut accessions. This experiment was conducted using a randomized completely block design with one factor i.e. origin of accessions (Bogor and Sukabumi black testa, Sumedang black and brown testa). The results showed that days to seedling emergence of Sumedang brown testa were 9.7 days after sowing (DAS), three other accessions ranged from 8.0 to 8.3 DAS. Days to 75% flowering of Sumedang brown testa was 45.3 days, the other three accessions ranged from 46.0 to 46.7 DAS. Days to pod formation of Bogor and Sumedang accessions with black testa were 49 DAS, Sumedang brown testa at 50 DAS, and Sukabumi accession at 54 DAS. Physiological seed maturity of Bogor and Sukabumi accessions at 112 DAS, Sumedang brown testa at 116 DAS and black testa at 128 DAS. Morphological variation of four bambara groundnut accessions included color of plumule, petiole, seed coat (testa), and leaf shape. Accessions of Sukabumi and Bogor black testa were potential to be developed further because of its showing higher number and weight of pods, and earlier maturity compared to those of Sumedang accessions with black and brown testa.

Keywords: early maturity, leaf shape, pod, seedling emergence, testa color
Morfologi dan Pertumbuhan Planlet Hasil Induksi Poliploidi melalui Perlakuan Kolkisin pada Kuncup Bunga Anggrek Bulan (Phalaenopsis amabilis (L.) Blume)
Authors: Azmi Tubagus Kiki Kawakibi , Sukma Dewi , Aziz Sandra Arifin , Syukur Dan Muhamad
Published: April 2017

Induction of polyploid gametes is one of useful plant polyploidization methods. Some of its benefits are to obtain triploid and tetraploid progenies at the same time by cross and self pollination. Previous research showed that some morphological characters which could be the indications of polyploidy plantlets before the analysis of chromosome number. Colchicine treatment on flower bud of diploid Phalaenopsis amabilis was conducted to determine the effect of colchicine on flower bud development, plantlets morphology and growth, and potential of polyploidy induction based on plantlets morphology. Colchicine concentrations in the experiment were 0, 50, 500, 1,000, and 2,000 mg L-1, with three days duration of treatments with aluminium foil wraps on flower buds. The results showed that high colchicine concentrations (2,000 mg L-1) inhibited flowers blooming of treated flower buds. Based on morphological characters, plantlets were classified into normal and putative polyploid plantlets. Putative polyploid plantlets from colchicine with the concentration of 50, 500, and 1,000 mg L-1 were 71.2, 86.4, and 100.0% respectively.

Keywords: colchicine concentration, morphological characters, normal plantlets, putative polyploidy, reproductive organ
Ketahanan Beberapa Klon Kentang (Solanum tuberosum L.) terhadap Asam Fusarat dan Penyakit Busuk Kering Umbi
Authors: Sari Dewi Citra , Dinarti Diny , Suwarno Willy Bayuardi , Purwito Dan Agus
Published: April 2017

ABSTRACT

Fusaric acid produced by Fusarium spp. played a major role in potato dry rot development. Using fusaric acid as a selection agent may be useful to identify resistant clones. The aim of this experiment was to evaluate the morphological responses of 10 potato clones (Granola, Atlantic, Cipanas, DTO 28, DTO 33, Russet Burbank, IPB 1, CIP 801040, CIP 801045, dan CIP 801050) and their resistance level to fusaric acid and Fusarium solani. The research was conducted in Plant Breeding Laboratory and Tissue Culture Laboratory 3, Departement of Agronomy and Horticulture from April 2014-February 2015. The in vitro experiment was arranged in a randomized block design with 4 fusaric acid concentrations and 4 replications, while the F. solani infection experiment was arranged in a completely randomized design with 5 replications. The result showed that fusaric acid inhibits growth, reduce microtubers production, and caused planlets death. Correlation analysis between in vitro resistance to fusaric acid and F. solani infection on tuber showed positive and notable result. Accordingly, fusaric acid can be used to identify any clones resistant to F. solani.

Keywords: Fusarium solani, phytotoxin, selection
Pemacuan Pertumbuhan Melon (Cucumis melo L.) dengan Cendawan Mikoriza Arbuskula dan Bakteri Azospirillum sp.
Authors: Tetelepta Lady Diana , , Triadiati , Sukarno Dan Nampiah
Published: April 2017

ABSTRACT

Melon (Cucumis melo L.) is a high economic value horticultural crop that is cultivated in some regions of Indonesia under fertilization management. Application of inorganic fertilizer continuously can reduce soil microbial abundance. One of the soil microbial that promote plant growth is arbuscular mycorrhizal fungi (AMF) and Azospirillum sp. The aim of this study was to analysed the effect of AMF and Azospirillum sp. in promoting growth and production of melon. The experiment was carried out in a greenhouse and was arranged in a completely randomized design with five replicates. Five treatments tested were: control, fertilized with NPK, inoculated with AMF, inoculated with Azospirillum sp., inoculated with AMF + Azospirillum sp. The results showed that the effect of AMF on root growth and shoot growth were similar to NPK fertilizer. Azospirillum sp. increased root growth. On the other side, the effect of Azospirillum sp. on shoot growth was similar to NPK fertilizer. However, AMF and Azospirillum sp. inoculation solely increased plant height, fruit weight, fruit diameter, flavor and length of fruit storage. Meanwhile, combination of AMF and Azospirillum sp. increased plant height, root growth, shoot growth, fruit weight, fruit diameter, flavor and length of fruit storage. This study revealed that application of AMF and Azospirillum sp. in melon cultivation was more effective and efficient than NPK fertilizer.

Keywords: arbuscular mycorrhizal fungi, Azospirillum sp., Cucumis melo L.
Analisis Kemiripan 20 Aksesi Temu Ireng (Curcuma aeruginosa Roxb.) Berdasarkan Warna Rimpang, Hasil Ekstrak, dan Kandungan Fitokimia
Authors: Nurcholis Waras , Khumaida Nurul , Syukur Muhamad , Bintang Dan Maria
Published: April 2017

ABSTRACT

Curcuma aeruginosa Roxb., popularly known as “temu ireng”, is considered as a potential source of medicinal plant for pharmacological activities. However, varieties of C. aeruginosa are still limited in Indonesia so it needs more accessions for improvement and development of new varieties. Rhizome colors, phytochemical contents and extract yield from 20 promising lines of C. aeruginosa were investigated by qualitative method for rhizome colors and phytochemical contents, and maceration method using 70% ethanol for yield extract. Similarity analysis was used for cluster analysis based on rhizome colors, phytochemical contents and yield extract. Blue was the color characterization of rhizome C. aeruginosa. The extract yield for 20 promising lines of C. aeruginosa varied from 7.92 to 19.71%, with KN and BH promising lines having the lowest and highest value, respectively. All promising lines of C. aeruginosa contain saponin and triterpenoid. Based on similarity analysis, all promising lines could be divided into 3 clusters. Cluster I consisted of 14 promising lines i.e. WG, SH, KA, GD, BH, KP, NW, PW, MB, PR, PT, KN, MD, and PK. Cluster II consisted of 4 promising lines i.e. LC, CB, KL, and GK. Cluster III consisted of 2 promising lines i.e. KD and SG.

Keywords: promising lines, saponin, triterpenoid
Produktivitas Tiga Genotipe Kedelai dengan Air Berbeda dan Kedalaman Muka Air pada Berbagai Kondisi Tanah di Pasang Surut
Authors: Pujiwati Hesti , Aziz Sandra A. , Ghulamahdi Munif , Yahya Sudirman , Haridjaja Dan Oteng
Published: April 2017

ABSTRACT

Soybean extensification on mineral and peaty mineral soils of tidal land are limited by Al and Fe toxicity.  Modification of growing environment and the use of tolerant variety are the possible alternatives to overcome the limitation.  The research was aimed to study soybean productivity in various soil types with different depth of water level and different water compositions. The experiment was held under mineral, peaty mineral soils with interaction types B and C  of tidal swamp in Banyuasin, South Sumatera from May to August 2014.  At each location, there was a three factor experiment was arranged in a split-split plot design. The first factor was two water depth (10 and 20 cm), the second factor was three varieties (Tanggamus, Cikuray, Ceneng) and third factor was three different water compositions (river water, peat water, high-tide water). The results showed productivity on mineral soil types C, peaty  mineral soil types B, and mineral soil types B were 4:50, 3.65, 0:32 ton ha-1 respectively. In peaty mineral soil types B, Ceneng with a depth of 20 cm water level resulted in highest productivity. In the mineral soil overflow type B, Cikuray with peat water composition had highest productivity.

Keywords: mineral, peaty mineral, sensitive, tolerant
Pewarisan Karakter Kualitatif Cabai Hias Hasil Persilangan Cabai Besar dan Cabai Rawit
Authors: Hapshoh Siti , Syukur Muhamad , Wahyu Yudiwanti , Widodo Dan
Published: April 2017

ABSTRACT

The fruit of ornamental chili functioned as ornamental as well as for consumption, and therefore it requires diversity of traits for selection process. Information on inheritance pattern of the traits are needed for effective selection. The ideotype of ornamental chili are shortened internode that form a bouquet of flowers, erect fruit orientation and contain anthocyanins for attractive appearance. The research was aimed to study qualitative characters inheritance associated with shortened internode, fruit orientation and anthocyanins content. This study used 6 population including female parent (P1) which has anthocyanin in flower parts, the male parent (P2) bird pepper which has the character of a shortened internode, F1, F1R, BCP1, BCP2, and F2. Data were analyzed with Chi-square test to determine the Mendelian ratio in the F2 population. The results showed that there were characters that was controlled by one gene or two genes. Shortened internode and erect fruit orientation were controlled by a single recessive gene with a ratio of 1:3. On the other hand the color of anthocyanin in the anther stem was controlled by one dominant gene with a ratio of 3:1. The characters controlled by two genes that were dominant and recessive epistasis was the color of anthocyanins in the anther with the ratio 13:3.

Keywords: Mendelian ratio, antosianin, shortened internode
Imaginação e criação na infância: ensaio psicológico
Authors: Moura Jónata Ferreira de
Published: April 2017

VIGOTSKI, Lev. S. Imaginação e criação na infância: ensaio psicológico. Apresentação e comentários de Ana Luiza Smolka. Tradução de Zoia Prestes. São Paulo: Ática, 2009.
Formações discursivas na EJA: posicionamentos discursivos de professores de língua inglesa
Authors: Leite Natália Costa , Neves Maralice de Souza
Published: April 2017

Ancorado nos pressupostos da Análise do Discurso Franco-Brasileira (ADF), este artigo objetiva analisar os efeitos de sentido mobilizados pelos professores sobre o projeto EJA e o ensino de língua inglesa. Em nossas análises, pinçamos diversos significantes que caracterizaram a EJA como um espaço menor ou periférico. Nomeamos tais regularidades como FD do Conformismo. Já a FD da Ruptura sinalizou um corte nesses sentidos (pre)vistos e apontou para a produção de outros (não)saberes e novas/outras memórias perante o aluno e o ensino de Língua Inglesa.
Morphologies and Growth Mechanisms of the Eutectic Particles in As-Cast Al-Mg-Sc Alloy
Authors: Pan D. , Zhou S. , Zhang Z. , Li M. , Li H. , Wu Y.
Published: April 2017

Primary particles with faceted cubic morphology were produced in as-cast Al-Mg alloy due to the addition of Sc. The cross-section of the particles revealed some eutectic structure composed of multilayer of ‘Al3Sc + α-Al + Al3Sc····’. At the cooling rate of 200 – 300 K/s, Al3Sc primary phase nucleated initially on oxides within the melt and developed to a cubic structure with a ‘cellular-dendritic’ mode of growth. The formation of α-Al structural shells was attributed as a reason for the segregation of Mg-rich lamellar dendrites at later stages. A growth mechanism for multilayer structure was proposed using the results presented.
Computer-Tomography and its Use in Failure Analysis
Authors: Panzenböck M. , Borchert M. , Freitag C.
Published: April 2017

In the last fifteen years computer-tomography has proven to be a valuable aid in the fields of medicine, materials technology and forensics. Nowadays it is hard to image non-destructive testing being carried out without its use. This article serves to demonstrate the power of the technique within the field of failure analysis with reference to two chosen case studies. The first case concerns the failure of magnetic valves, the second case focusses on the failure of corrosion resistant screws.
„Die Zeit kommt nicht wieder“: Elterngeldnutzung erwerbstätiger Väter in Bayern
Authors: Peltz Kathrin , Streckenbach Luisa Antonie , Müller Dagmar , Possinger Johanna , Thiessen Barbara
Published: April 2017

The popularity of the ‘Elterngeld’ – the current parental allowance legislation in Germany – is considerably growing among fathers. By means of a multiple-method research approach, the influence of employment on paternity leave is investigated through the example of Bavaria – a federal state that has a particularly high rate of fathers taking parental leave. Contextual factors that might influence fathers’ involvement at the district level are investigated based on aggregated regional data using linear regression. It shows that a low rate of unemployment, job opportunities for highly qualified workers and an equitable balance in the participation of women and men in working life correlate with a higher rate of paternity leave. Individual rationales for taking parental leave are reconstructed on the basis of problem-focused interviews with Bavarian fathers and couples during paternity leave. The analysis revealed that, besides financial considerations, the emotional attachment to working life is of great importance for the decision of fathers taking parental leave. Even though the high income level in Bavaria is not – differently than previously assumed – crucial for the extensive use of ‘father months’, the findings confirm the overall importance of employment and the income level of both parents for the fathers’ decision on taking parental leave.

Zusammenfassung

Das Elterngeld erfreut sich bei Vätern zunehmender Beliebtheit. Am Beispiel Bayerns – einem Bundesland, in dem die Nutzung der ‚Vätermonate‘ besonders hoch ist und gleichzeitig regional variiert – wird mithilfe eines multimethodischen Designs untersucht, welche Bedeutung die Erwerbsarbeit für den Elterngeldbezug von Vätern hat. Auf der Grundlage aggregierter Regionaldaten wird zunächst mittels linearer Regression analysiert, welche Kontextfaktoren die Väterbeteiligung auf Kreisebene beeinflussen. Dabei zeigt sich, dass vor allem eine geringe Arbeitslosigkeit, das Arbeitsplatzangebot für hoch qualifizierte Beschäftigte und eine ausgewogene Erwerbsbeteiligung von Frauen und Männern mit einer höheren Väterbeteiligung am Elterngeld einhergehen. Zudem werden auf Grundlage problemzentrierter Interviews mit Vätern und Paaren individuelle Begründungen für den Elterngeldbezug des Vaters rekonstruiert. Neben finanziellen Erwägungen bestimmt eine emotionale Verwobenheit mit der Erwerbsarbeit die Elterngeld-Entscheidung. Insgesamt zeigt sich, wie bedeutsam die Erwerbsarbeit und das Einkommen beider Elternteile für die Elterngeldentscheidung sind, auch wenn das hohe bayerische Einkommensniveau nicht ausschlaggebend für die hohe Nutzung der Partnermonate ist.
Methodology for Groundwater Extraction in the Coastal Aquifers of Purba Midnapur District of West Bengal in India under the Constraint of Saline Water Intrusion
Authors: Maity Prabir Kumar , Das Subhasish , Das Rajib
Published: April 2017

The objective of this paper is to assess the field-based study on the sub-surface characteristics and groundwater quality variation in the coastal region of Purba Midnapur district, West Bengal, India. The fact that the coastal area receives inadequate surface water, the use of groundwater has become increasingly important for domestic, irrigation and industrial purposes; however threat exists associated with groundwater over-exploitation that leads to the intrusion of seawater. Hydro-geochemical site characterizations at individual locations were selected and detailed investigations were carried out on subsoil condition and groundwater quality assessment. Based on the field test results, contour lines were plotted for chloride concentration. Three dimensional views of piezometric surface of pre-monsoon, monsoon and post-monsoon depth to groundwater level and pre-monsoon piezometric surfaces contours had also been developed. This paper presents a mathematical analysis for estimating the safe yield from shallow vertical well and the qanat well structures coupled with vertical risers are presented as a viable solution to the problem of upconing below deep vertical wells. The vertical wells may not be feasible in several situations and qanat coupled with vertical risers may be successfully used in Purba Midnapur geology context.
PM10 Bound Elements, Ions, Carbon and PAHs during Festive Biomass Burning over the Brahmaputra Valley
Authors: Barman Nivedita , Bhuyan Pranamika , Chabukdhara Mayuri , Deka Pratibha , Hoque Raza Rafiqul
Published: April 2017

Episodic meji burning (a festive biomass burning) is a significant local contributor of PM10 in the mid-Brahmaputra Valley. The PM10 samples of meji burning period were chemically characterized for elements, ions, carbon and the USEPA’s 16 priority Polycyclic Aromatic Hydrocarbons (PAHs). This paper presents the concentrations of various attributes of PM10 during meji festivities. As such, linear relationship between EC, OC and other chemical species, and diagnostic ratios of selected PAHs indicated strong influence of biomass burning on PM10 load and its properties.
Nutrient Chemistry of River Yamuna, India
Authors: Sharma Shikha , Jha Pawan Kumar , Ranjan Manju Rawat , Singh Umesh Kumar , Kumar Manish , Jindal Tanu
Published: April 2017

Water samples were collected and analyzed for dissolved nutrient concentration and organic carbon in the Yamuna river system, from June 2014 to March 2015. pH, total dissolved solids (TDS), electrical conductivity (EC) and Dissolved oxygen (DO) concentration varied (Mean ± SD) in study area as 7.33 ± 0.68, 489 ± 305.3 (mg l−1), 983.7 ± 617.4 (μs/cm) and 5.85 ± 3.41 (mg l−1). Annual average concentrations and standard deviation of nitrate (NO3-N), nitrite (NO2-N), ammonium (NH4-N), phosphate (PO4-P), silica (SiO2-Si) and dissolved organic carbon (DOC-C) were 0.48 ± 0.64, 0.14 ± 0.30, 2.43 ± 2.86, 0.43 ± 0.59, 3.22 ± 1.67 and 4.74 ± 2.57 (mg l−1), respectively in the Yamuna river system. The annual flux of nutrients from the Yamuna River for dissolved inorganic nitrogen (DIN), phosphate (PO4-P), dissolved silica (SiO2-Si), and dissolved organic carbon (DOC-C) were 43.5×104, 6.14×104, 40.9×104, 61.7×104 t year−1 respectively. The positive values of the indicator of coastal eutrophication potential (ICEP) for both nitrogen and phosphate indicates an excess of nitrogen and phosphorus over silica in the Yamuna river water. Therefore, nutrient load from the Yamuna river system have the potential to create eutrophication problem in Ganga river.
Toward the Automation of Diagnostic Conversation Analysis in Patients with Memory Complaints
Authors: Mirheidari Bahman , Blackburn Daniel , Harkness Kirsty , Walker Traci , Venneri Annalena , Reuber Markus , Christensen Heidi
Published: April 2017

Background: The early diagnosis of dementia is of great clinical and social importance. A recent study using the qualitative methodology of conversation analysis (CA) demonstrated that language and communication problems are evident during interactions between patients and neurologists, and that interactional observations can be used to differentiate between cognitive difficulties due to neurodegenerative disorders (ND) or functional memory disorders (FMD).

Objective: This study explores whether the differential diagnostic analysis of doctor-patient interactions in a memory clinic can be automated.

Methods: Verbatim transcripts of conversations between neurologists and patients initially presenting with memory problems to a specialist clinic were produced manually (15 with FMD, and 15 with ND). A range of automatically detectable features focusing on acoustic, lexical, semantic, and visual information contained in the transcripts were defined aiming to replicate the diagnostic qualitative observations. The features were used to train a set of five machine learning classifiers to distinguish between ND and FMD.

Results: The mean rate of correct classification between ND and FMD was 93% ranging from 97% by the Perceptron classifier to 90% by the Random Forest classifier.Using only the ten best features, the mean correct classification score increased to 95%.

Conclusion: This pilot study provides proof-of-principle that a machine learning approach to analyzing transcripts of interactions between neurologists and patients describing memory problems can distinguish people with neurodegenerative dementia from people with FMD.
Ethical Considerations for Deep Brain Stimulation Trials in Patients with Early-Onset Alzheimer’s Disease
Authors: Viaña John Noel M. , Bittlinger Merlin , Gilbert Frederic
Published: April 2017

Several studies of deep brain stimulation (DBS) of the fornix or the nucleus basalis of Meynert have been recently conducted in people with Alzheimer’s disease, with several recruiting participants <65 and thus have early-onset Alzheimer’s disease (EOAD). Although EOAD accounts for less than 5.5% of AD cases, ethical considerations must still be made when performing DBS trials including these participants since a portion of people with EOAD, especially those possessing autosomal-dominant mutations, have an atypical and more aggressive disease progression. These considerations include appropriate patient selection and signing of an informed consent for genetic testing; appropriate study design; potential outcomes that people with EOAD could expect; and accurate interpretation and balanced discussion of trial results. Finally, recommendations for future DBS for AD trials will be made to ensure that EOAD patients will not experience avoidable harms should they be enrolled in these experimental studies.
Biomarkers for Early Diagnosis of Alzheimer’s Disease in the Oldest Old: Yes or No?
Authors: Paolacci Lucia , Giannandrea David , Mecocci Patrizia , Parnetti Lucilla
Published: April 2017

In recent years, many efforts have been spent to identify sensitive biomarkers able to improve the accuracy of Alzheimer’s disease (AD) diagnosis. Two different workgroups (NIA-AA and IWG) included cerebrospinal fluid (CSF) and neuroimaging findings in their sets of criteria in order to improve diagnostic accuracy as well as early diagnosis. The number of subjects with cognitive impairment increases with aging but the oldest old (≥85 years of age), the fastest growing age group, is still the most unknown from a biological point of view. For this reason, the aim of our narrative mini-review is to evaluate the pertinence of the new criteria for AD diagnosis in the oldest old. Moreover, since different subgroups of oldest old have been described in scientific literature ( escapers, delayers, survivors), we want to outline the clinical profile of the oldest old who could really benefit from the use of biomarkers for early diagnosis. Reviewing the literature on biomarkers included in the diagnostic criteria, we did not find a high degree of evidence for their use in the oldest old, although CSF biomarkers seem to be still the most useful for excluding AD diagnosis in the “fit” subgroup of oldest old subjects, due to the high negative predictive value maintained in this age group.
Prediction of Conversion to Alzheimer’s Disease with Longitudinal Measures and Time-To-Event Data
Authors: Li Kan , Chan Wenyaw , Doody Rachelle S. , Quinn Joseph , Luo Sheng ,   the Alzheimer’s Disease Neuroimaging Initiative
Published: April 2017

Background: Identifying predictors of conversion to Alzheimer’s disease (AD) is critically important for AD prevention and targeted treatment.

Objective: To compare various clinical and biomarker trajectories for tracking progression and predicting conversion from amnestic mild cognitive impairment to probable AD.

Methods: Participants were from the ADNI-1 study. We assessed the ability of 33 longitudinal biomarkers to predict time to AD conversion, accounting for demographic and genetic factors. We used joint modelling of longitudinal and survival data to examine the association between changes of measures and disease progression. We also employed time-dependent receiver operating characteristic method to assess the discriminating capability of the measures.

Results: 23 of 33 longitudinal clinical and imaging measures are significant predictors of AD conversion beyond demographic and genetic factors. The strong phenotypic and biological predictors are in the cognitive domain (ADAS-Cog; RAVLT), functional domain (FAQ), and neuroimaging domain (middle temporal gyrus and hippocampal volume). The strongest predictor is ADAS-Cog 13 with an increase of one SD in ADAS-Cog 13 increased the risk of AD conversion by 2.92 times.

Conclusion: Prediction of AD conversion can be improved by incorporating longitudinal change information, in addition to baseline characteristics. Cognitive measures are consistently significant and generally stronger predictors than imaging measures.
Modeling Aerodynamics, Including Dynamic Stall, for Comprehensive Analysis of Helicopter Rotors
Authors: Truong Khiem
Published: April 2017

To fulfill the objective of a predictive tool for rotorcraft, comprehensive analysis (CA) needs to be capable of providing both accurate and time-efficient predictions of rotor air loads and structural loads. The more recent methodology based on comprehensive analysis coupled with high-fidelity computational fluid dynamics (CFD) has shown improved predictions of air loads, but it has not the strength of computational efficiency and the versatility of stand-alone CA. The present article is concerned with modeling aerodynamics about helicopter rotors for CA. The aerodynamics about rotors are very complex, encompassing subsonic to transonic flow with unsteady, stalled behavior and 3D effects. CA treats aerodynamics as separated into local and global flows. Semi-empirical models of dynamic stall were created in the 1970s–1990s for modeling unsteady local aerodynamics, including stalled flow. Most of them fail to provide good predictions of experimental results and also suffer problems of numerical convergence. The main effort in this study is about modeling local aerodynamics based on the revised “ONERA–Hopf bifurcation model”. It is implemented in the comprehensive analysis code of ONERA according to a scheme that ensures numerical convergence. The experimental results obtained in the Wind Tunnel S1 of Modane (France) in 1991 on the Rotor 7A are considered for validation of the analysis under three flight test conditions: high-speed test, high-thrust tests with light stall and deep stall, respectively. There is a reasonable agreement between the predictions of CA with experimental results. The distinct features of the stall model are the modeling of the boundary-layer effects and the vortex-shedding phenomenon.
Vortex Lattice Simulations of Attached and Separated Flows around Flapping Wings
Authors: Lambert Thomas , Abdul Razak Norizham , Dimitriadis Grigorios
Published: April 2017

Flapping flight is an increasingly popular area of research, with applications to micro-unmanned air vehicles and animal flight biomechanics. Fast, but accurate methods for predicting the aerodynamic loads acting on flapping wings are of interest for designing such aircraft and optimizing thrust production. In this work, the unsteady vortex lattice method is used in conjunction with three load estimation techniques in order to predict the aerodynamic lift and drag time histories produced by flapping rectangular wings. The load estimation approaches are the Katz, Joukowski and simplified Leishman–Beddoes techniques. The simulations’ predictions are compared to experimental measurements from wind tunnel tests of a flapping and pitching wing. Three types of kinematics are investigated, pitch-leading, pure flapping and pitch lagging. It is found that pitch-leading tests can be simulated quite accurately using either the Katz or Joukowski approaches as no measurable flow separation occurs. For the pure flapping tests, the Katz and Joukowski techniques are accurate as long as the static pitch angle is greater than zero. For zero or negative static pitch angles, these methods underestimate the amplitude of the drag. The Leishman–Beddoes approach yields better drag amplitudes, but can introduce a constant negative drag offset. Finally, for the pitch-lagging tests the Leishman–Beddoes technique is again more representative of the experimental results, as long as flow separation is not too extensive. Considering the complexity of the phenomena involved, in the vast majority of cases, the lift time history is predicted with reasonable accuracy. The drag (or thrust) time history is more challenging.