bluuebunny/crossref_metadata_2025 huggingface dataset:
Controle da podridão apical da goiaba com tratamentos alternativos em pós-colheita
Authors: Fischer Ivan , Palharini Maria , Fileti Mirian , Galli Juliana , Nogueira Júnior Antônio
Published: April 2018

Objetivou-se avaliar o efeito de produtos alternativos [fosfito de potássio, cloreto de cálcio, fécula de mandioca, 1-metilciclopropeno (1-MCP), etanol seguido de dicloro s. triazinatriona sódica dihidratada (etanol+cloro)] e de hidrotermia, isoladamente e em associação de dois tratamentos, na ocorrência da podridão apical e nas características cor da casca e firmeza da polpa de goiabas ‘Pedro Sato’. Os tratamentos foram avaliados em goiabas naturalmente infectadas, em três estádios de maturação, armazenadas a 22ºC por 8 dias. A eficácia das associações de tratamentos também foi avaliada após 8, 16 e 24 horas da inoculação de Fusicoccum aesculi, Neofusicoccum ribis e N. parvum nos frutos. A incidência da doença foi crescente com o estádio de maturação e inferior nas associações de tratamentos (hidrotermia/fécula, etanol+cloro/1-MCP e etanol+cloro/fécula). Nos frutos inoculados, comprovou-se a eficiência dos tratamentos no controle da doença, com uma maior eficiência da associação hidrotermia/fécula nas inoculações com Neofusicoccum spp. As associações de tratamentos controlaram de forma semelhante F. aesculi. A eficiência de controle decresceu com o aumentou do tempo entre a inoculação e o tratamento. A manutenção da qualidade das goiabas com as associações de tratamentos foram evidenciadas pelo atraso na mudança de coloração da casca e menor redução na firmeza.
Efeito do volume individual e declividade do terreno na produtividade do harvester no desbaste de pinus
Authors: Burgin Mário Rodolfo Boff , Lopes Eduardo da Silva , Rodrigues Carla Krulikowski
Published: April 2018

Objetivou-se avaliar o efeito do volume individual por árvores e declividade do terreno na produtividade do harvester em povoamentos de Pinus taeda L. submetidos ao desbaste. O estudo foi realizado em uma empresa florestal localizada no município de Bituruna, Paraná. A coleta dos dados foi realizada em povoamentos com 10 anos de idade, conduzidos em terrenos com declividade de 0º a 12º e de 12º a 24º. Por meio de um estudo de tempos e movimentos pelo método de multimomento foi determinado o grau de disponibilidade mecânica, grau de disponibilidade técnica, eficiência operacional e produtividade da máquina. Considerando um delineamento inteiramente casualizado, comparou-se as duas classes de declividade, através do teste t ao nível de 5% de significância. Foram ajustados três modelos para a predição da produtividade da máquina, em função do volume individual por árvore e da declividade do terreno. Os resultados mostraram que a produtividade reduziu com o aumento da declividade, bem como, aumentou com o incremento do volume individual por árvore. Para a estimativa da produtividade do harvester, o modelo mais adequado apresentou um coeficiente de determinação de 0,98, com um erro padrão da regressão de 10,5%, demonstrando elevada influência destas variáveis na produtividade da máquina.
Uso de fertilizante organomineral no desenvolvimento de mudas de rúcula
Authors: Oliveira Roberta Camargos , Silva João Eduardo Ribeiro , Aguilar Ariel Santivañez , Peres Diego , Luz Jose Magno Queiroz
Published: April 2018

A rúcula é uma brássica cujas folhas são ricas em vitaminas, sais minerais e apresentam efeito medicinal. A produção de mudas é uma etapa importante do sistema de produção de hortaliças, pois influencia o desenvolvimento, o ciclo, a qualidade e a quantidade a ser produzida.  Dentre as práticas de manejo, o uso de produtos organominerais líquidos ainda é recente. Diante disso, objetivou-se avaliar o efeito do carbono orgânico proveniente de um fertilizante organomineral líquido no desenvolvimento inicial de mudas de rúcula. O experimento, em delineamento de blocos ao acaso, em esquema fatorial (4 x 2) + 1, avaliou quatro doses (0.50; 0.75; 1.00 e 1.25%), duas fontes (Sulfato de zinco e fertilizante organomineral líquido) mais um tratamento testemunha sem a aplicação de produtos. A coleta das plantas foi realizada 32 dias após a semeadura. A presença de carbono orgânico é favorável ao desenvolvimento de mudas de rúcula. A aplicação do fertilizante organomineral líquido resultou em melhores médias das variáveis comprimento de raiz, número de folhas, massa seca da parte aérea, massa seca raiz, teor de clorofila A e teor de clorofila total em comparação com o sulfato de zinco, porém sem efeito em relação à testemunha.
Diversidade de famílias de Coleoptera associada à cultura da romãzeira no Semiárido da Paraíba
Authors: Santos William de Sousa , Guedes Rozileudo da Silva
Published: April 2018

O levantamento populacional de insetos presentes em monoculturas é um importante passo para estudos de manejo de pragas, como também para estudos ecológicos. Neste sentido, objetivou-se avaliar a diversidade de famílias de Coleoptera associada à cultura da romãzeira (Punica granatum L.) em um pomar orgânico na região Semiárida da Paraíba. Coletas mensais foram realizadas no período de agosto/2012 a janeiro/2013, utilizando-se rede entomológica e guarda-chuva entomológico em doze plantas do pomar. Os indivíduos coletados foram preservados em potes plásticos e conduzidos ao laboratório de Entomologia Florestal da Universidade Federal de Campina Grande, Patos, PB, local onde se efetuou a triagem, etiquetagem, contagem e identificação em nível de famílias. Foram coletados 2.115 indivíduos pertencentes a 15 famílias e 66 morfoespécies de Coleoptera. Houve variação populacional na abundância dos insetos ao longo do período estudado, sendo as famílias mais abundantes: Curculionidae (33,76%), Anthicidae (29,93%), Coccinellidae (13%) e Chrysomelidae (10,17%), compreendendo 86,57% dos indivíduos coletados. Esse trabalho é o primeiro a fornecer informações sobre a entomofauna de Coleoptera associada à cultura da romãzeira no Brasil.
Maturação fisiológica e armazenamento pós-colheita de frutos e sementes de tomate cereja em transição agroecológica
Authors: Rocha Raimundo Gleidison Lima , Ribeiro Maria Clarete Cardoso , Silva Fred Denilson Barbosa da
Published: April 2018

A cultura do tomateiro é uma das mais importantes hortaliças cultivadas no Brasil, sendo sua utilização muito variada e com grande número de tipos de frutos existentes. O presente trabalho teve como objetivo verificar a influência dos estádios de maturação e armazenamento pós-colheita na qualidade fisiológica das sementes de tomate cereja da variedade Carolina. O trabalho foi realizado na fazenda experimental da Universidade da Integração Internacional da Lusofonia Afro-Brasileira (UNILAB), localizada em Piroás, distrito de Redenção-CE. Foi utilizado o (DIC), em esquema fatorial 3x4 (três períodos de maturação: 40, 50 e 60 dias e quatro períodos de armazenamento pós-colheita: 0, 5, 10, 15 dias). Foram avaliadas as variáveis: emergência de plântulas (%; índice de velocidade de emergência (IVE); altura de plântulas; diâmetro de caule e comprimento de raiz. Sementes coletadas aos 40 DAA podem ser semeadas quando feito o armazenamento pós-colheita durante três dias. Sementes coletadas aos 50 DAA pode-se fazer a semeadura quando não for feito o armazenamento pós-colheita. Sementes com maior vigor foram obtidas quando coletadas aos 50 DAA e não armazenadas. O menor período de maturação e de armazenamento pós-colheita reduz os custos da produção de sementes.
Percepções sobre a importância do solo: estudo de caso em uma escola de Itapetim – PE
Authors: Freitas Amanda de Lira , Vital Adriana de Fátima Meira , Nascimento Bianca Maria Silva , Lustosa Maria Aparecida Felix Soares , Souza Maílson Pereira de , Ramos Gabriela Gomes
Published: April 2018

A popularização do ensino de solos é uma necessidade em função do avanço da degradação. A pesquisa objetivou verificar a compreensão dos alunos da escola pública de Itapetim-PE sobre o solo durante o período compreendido entre os dias 24 à 28 de julho de 2017. A pesquisa constou de um questionário semiestruturado, aplicado a educandos do 5º ano do ensino fundamental, distribuído em dois momentos: na apresentação da proposta e após as palestras didáticas e oficina temática. Inicialmente as crianças associavam a palavra “solo” com terra e chão ou a atividades agrícolas, mas desconheciam suas características, importância e funções. Quanto ao entendimento sobre práticas que degradam o solo apresentaram visões distorcidas ou não souberam responder. Mais da metade dos educandos (65%) disseram nunca ter participado de projetos ou atividades com o solo. Durante a oficina de geotinta os educandos mostraram interesse e encantamento pela atividade e após essa prática suas respostas foram mais pontuais. É possível concluir que a adoção de metodologias participativas contribui para estimular o aprendizado em sala de aula, motivando e sensibilizando os estudantes para o saber. A prática pedagógica centrada na educação ambiental e educação em solos é uma importante ferramenta para popularização dos conceitos sobre esse valioso recurso ambiental e adoção de posturas pró-ativas para o cuidado com a natureza.
Caracterização do consórcio coqueiro-bananeira no Perímetro Irrigado das Várzeas de Sousa, PB.
Authors: Alencar Isabelle , Azevêdo Pedro
Published: April 2018

No município de Sousa, Paraíba, agricultores familiares do Perímetro Irrigado das Várzeas de Sousa (PIVAS) fazem consórcio do coqueiro-anão com a bananeira, aproveitando o espaçamento entre os coqueiros, visando uma produção mais constante e estável ao longo do tempo. A representatividade desses cultivos de alta demanda hídrica nessa localidade semiárida só é possível graças ao PIVAS, cujo fornecimento de água depende exclusivamente do complexo de barragens Coremas/Mãe d’água. Esse trabalho teve por objetivo caracterizar esse consórcio, no ano de 2016, em seus aspectos ambientais, econômicos e sociais através de estudo de campo, fazendo uso de entrevistas e análises de água e solo. O fator mais limitante à produção do coco-da-baía e da banana foi o estresse hídrico decorrente da estiagem prolongada que assola a região desde 2012, o qual afeta diretamente a produtividade e o perfil socioeconômico dos agricultores. A análise de água indicou a não potabilidade da água, mas seu uso seguro para irrigação A análise do solo indicou um empobrecimento generalizado do solo dos lotes estudados quando comparados ao solo da reserva legal.
Avaliação ergonômica da colheita florestal em área com madeira danificada pelo vento
Authors: Schettino Stanley , Minette Luciano José , Soranso Denise Ransolin , Camarinha Anna Carolina Minetti , Schettino Carolina Freitas
Published: April 2018

Este estudo teve por objetivo realizar a análise ergonômica do trabalho de seis atividades de colheita florestal em área danificada pelo vento. Para cada uma das atividades, foi realizada a avaliação biomecânica, através da aplicação do Modelo Biomecânico Tridimensional de Predição de Posturas e Forças Estáticas (3DSSPPTM), desenvolvido pela Universidade de Michigan, além dos fatores ambientais calor, vibração e ruído, de forma a determinar os riscos ergonômicos a que os trabalhadores estavam expostos durante o desenvolvimento da colheita florestal. A avaliação biomecânica indicou que para as atividades de extração e carregamento manual os valores de carga estavam acima do limite recomendado, com elevado risco de desenvolvimento de lesões na coluna vertebral e nas articulações avaliadas. As condições térmicas do ambiente de trabalho, apresentaram risco aos trabalhadores, principalmente no período da tarde e em todas as atividades. O ruído foi o fator ambiental que apresentou maior risco ergonômico aos trabalhadores das atividades de derrubada e traçamento, seguido da vibração. Conclui-se que a colheita de madeira em área danificada pelo vento possui elevado risco ergonômico para os trabalhadores durante a execução de suas atividades, o que, aliado as condições ambientais adversas, proporciona elevados e iminentes riscos de desenvolvimento de lesões e doenças osteomusculares relacionadas ao trabalho.
Ideologia constitucional e políticas públicas: uma crítica ao Novo Regime Fiscal
Authors: De Lelis Davi Augusto Santana
Published: April 2018

Realiza-se uma análise do Estado Democrático de Direito em duas perspectivas: a ética e a financeira. Entendendo por Estado ético aquele que se compromete a realizar os direitos fundamentais, tanto em conotação das liberdades individuais quanto das responsabilidades coletivas de bem-estar social; e entendendo por Estado financeiro aquele que se preocupa com o equilíbrio das contas públicas e da remuneração do capital privado. Demonstra-se, por meio de uma análise no Novo Regime Fiscal que a opção por um ou por outro Estado não é neutra e que se há pretensão de resolver a crise econômica e social é preciso a predileção do Estado ético sobre o Estado financeiro.
O que faz a economia funcionar?
Authors: Dowbor Ladislau
Published: April 2018

Tanto os avanços da sociedade nos anos 2003 a 2013, período que o Banco Mundial qualificou de Golden Decade da nossa economia, como o desastre que se seguiu, intrigam pelo contraste. A leitura dos promotores do golpe, de que as políticas sociais e econômicas de inclusão geraram a crise, constitui um engodo ideológico, narrativa da boa dona de casa que deve gastar apenas o que tem, e que foi martelada incessantemente na mídia dominante. Aqui se trata de mostrar os mecanismos. E não são misteriosos. O presente artigo mostra como funciona o ciclo virtuoso em que a demanda de massa dinamiza a atividade empresarial e o emprego, sendo que ambos geram receitas para o Estado, equilibrando o processo. E mostra como juros exorbitantes endividaram as famílias, as empresas e o Estado, desequilibrando o conjunto. Finalmente, veremos a deformação do sistema tributário e da fiscalidade em geral, que explica como o marasmo se perpetua. Numa economia em que fazer aplicações financeiras rende mais do que o investimento em bens e serviços, o resultado é justamente o capital improdutivo e o travamento do conjunto.
CARBONATION RESISTANCE OF SLAG MORTARS ACTIVATED BY DIFFERENT ALKALI ACTIVATORS
Authors: BİLİM Cahit , ATİŞ Cengiz
Published: April 2018

In this study, the carbonation depths of slag mortars activated by sodium silicate (water glass), sodium hydroxide and sodium carbonate were investigated and the results were compared to those of control mortar with CEM I 42.5 R normal Portland cement. In the mixture, the sand/binder ratio was 2.75 and the water/binder ratio was 0.50. Na concentrations in the mixture proportions were determined as 4%, 6%, and 8% for all the activators. For liquid sodium silicate activator, SiO2/Na2O ratios (Ms) of 0.75, 1, 1.25, and 1.5 were also chosen. Prismatic specimens having 40 x 40 x 160 mm dimensions were prepared from both fresh Portland cement and slag mortar mixtures for the measurements. The day after the mortar casting, the prisms were demolded and placed in a humidity cabinet at 65% ± 5 relative humidity and 22 ± 2 °C temperature. The carbonation tests of mortars were conducted at 7, 28, 90 and 180 days. It was observed that the carbonation resistance of slag mortars activated by alkalis was lower than that of control mixture with Portland cement. However, it was also seen that an increment in the Na dosage of activator improved the resistance of the activated slag mortars to carbonation.
pH CHANGE IN ELECTROCHEMICAL OXIDATION OF IMIDACLOPRID PESTICIDE USING BORON-DOPED DIAMOND ELECTRODES
Authors: Körbahti Bahadır K. , Erdem Mustafa Ceyhun
Published: April 2018

In this study, pH and ΔpH change in the electrochemical oxidation of imidacloprid (IMD) pesticide using boron-doped diamond (BDD) electrodes was investigated in the presence of Na2SO4 electrolyte. The process parameters were operated as imidacloprid concentration (40-200 mg/L), electrolyte concentration (2-10 g/L), current density (4-20 mA/cm2) and reaction temperature (20-60°C). pH and ΔpH values increased with increasing Na2SO4 concentration, current density, and reaction temperature, and decreasing the imidacloprid concentration at 120 min reaction time. The results of this study showed that the pH of the wastewater solution maintained the local pH discharge limits between 6 and 9 after the electrochemical oxidation.
DESIGN AND PROTOTYPE OF A COMPACT, ULTRA WIDE BAND DOUBLE RIDGED HORN ANTENNA FOR BEHIND OBSTACLE RADAR APPLICATIONS
Authors: YILMAZ Betül , ÖZDEMİR Caner
Published: April 2018

In this paper, we propose an ultrawide band design for the double ridged horn (DRH) antenna to be used behind the obstacle radar (BOR) applications such as ground penetrating radar (GPR) and through the wall radar (TWR) imaging. The design is developed and optimized by the help of full electromagnetic simulator code; CST. The design parameters such as frequencies of operation and the half power beam width (HPBW) are taken into account by considering the BOR application requirements. The design double ridged horn antenna provides a frequency bandwidth between 1.5 GHz and 7 GHz and HPBW around 30° around the center frequency that are very suitable for GPR and TWR applications. The final optimized design that is formed by CST is physically manufactured and measured. The prototyped DRH antenna’s measurement antenna parameter results are in good agreement with the simulated ones.
MINERALOGICAL, GEOCHEMICAL AND MICROMORPHOLOGICAL CHARACTERISTICS OF CALCITE PRECIPITATED FROM A THIN COVER OF RECENT WATER TAKEN FROM THE STALAGMITES IN KÜPELI CAVE, ESENPINAR (ERDEMLI, MERSIN), SOUTHERN TURKEY
Authors: EREN Muhsin , KADİR Selahattin , AKGÖZ Murat
Published: April 2018

Küpeli cave in southern Turkey (UTM: 36.606085 °N, 34.114917 °E, 742 m asl) shows recent stalagmite development at several points beneath dripping water on a stack of blocks due to collapse of the cave ceiling. Calcite precipitated from water supersaturated with respect to CaCO3 under the surface conditions taken from a thin cover of water on the upper surface of stalagmites was analysed using the several analytical techniques, including XRD, DTA-TG, IR, ICP-OES and MS and stable isotope analyses. The results revealed that the precipitated material consists almost entirely of calcite. In the SEM images, the precipitate is composed mainly of euhedral to subhedral equant calcite crystals with size of 5-10 µmand an interwoven mass of calcite filaments. Stable isotope values of the calcite (δ18O = –3.81 ‰ V-PDB and δ13C = –6.92 ‰ V-PDB) indicate precipitation from meteoric soil water. The crystalline fabric of the precipitate points out inorganic precipitation whereas filamentous forms suggest calcified green algae at advance stage of evaporation.
AQUIFER THERMAL ENERGY STORAGE SYSTEMS: BASIC CONCEPTS AND GENERAL DESIGN METHODS
Authors: AYDIN  ERTUĞRUL Nihan , HATİPOĞLU BAĞCI Zübeyde , ERTUĞRUL Özgür Lütfi
Published: April 2018

Renewable energy plays an important role in meeting the ever increasing energy demand of the modern world. At this point, underground thermal energy storage has been suggested as a clean and efficient alternative of energy extraction for the sustainable future as one of the renewable energy varieties. Thermal energy storage systems in the aquifers have preluded the energy market with great success in many countries. Hot and cold natural energy sources are stored in the aquifer by using underground water to store the heat in this system. Efficiency of the system depends on several factors including groundwater temperatures and flow characteristics. Among the different underground thermal energy storage options, one of the most promising and commercial option is known as aquifer thermal energy storage (ATES). Based on the recent developments reported in the literature, general design procedures and construction techniques as well as relationships related with the efficiency of ATES systems are reviewed within the scope of this paper. The applications from the world and Turkey were discussed in a comparative approach.
APPLICABILITY OF SOLAR AND WIND ENERGY TECHNOLOGIES FOR A NON-RESIDENTIAL BUILDING
Authors: BAYHAN Burhan , ARSLAN Gökhan
Published: April 2018

In this study, applicability of wind and solar energy technologies in a non-residential building located in Mersin, Turkey is investigated. As the non-residential building, a polyclinic was examined. Meteorological data was obtained from Turkish State Meteorological Service to investigate the solar and wind energy technologies. The data was examined statistically. By using wind turbine with 0.9 kW rated power, 2223.5 kWh electricity energy was generated. Similarly, PV panel with 20 % panel efficiency, 5kW total power and 15 m2 surface area, 4240 kWh electricity energy was generated. Annual energy consumption of the polyclinic was calculated 26107.52 kWh by using EnergyPlus software. To meet heating and cooling loads of the polyclinic, the air source heat pump was preferred. 8.51 % of the total demand can be supplied from wind turbine and 16.24 % by photovoltaic panels. The proposed wind-solar hybrid system for investigated region is not applicable due to low of the wind energy potential of the investigated region, the high price of the wind turbine and the proximity to the lifetime of the utilized components in the system to depreciation time. On the other hand, by using only photovoltaic panels system to generate electricity, it was determined that depreciation time will decrease from 17 to 11 years.
MEASURES TO BE DETERMINED AND RECEIVED IN UNIVERSITIES OF OCCUPATIONAL HEALTH AND SAFETY RISKS
Authors: ZİLE Mehmet
Published: April 2018

Occupational health and safety related to the work done in workplaces in general people full body health and safety provision. In our country, the occupational health and safety risk assessment analysis moral, legal, and indirect costs have become crucial. Located in the workplace or identification of hazards from outside intrusion, it turned into a risk of danger that led to the factors analyzed by ranking of the risks arising from the dangers with and control measures will be utilized for the purposes of risk assessment and analysis work required. The work done in the business risks, in-flight transactions are used various methods, materials, and all kinds of machinery and equipment, job location or in the vicinity of the workplace are environmental conditions and various organizations created elements interact with each other. In this study, the University occupational health and safety measures to be taken by determining risks that are emphasized.
MODULAR APPROACH TO THE DESIGN OF PATH GENERATING PLANAR MECHANISMS
Authors: ÖZKUL İskender , MUTLU Hüseyin
Published: April 2018

A novel approach, called modular approach, is presented in this paper making possible the closed-form solutions of the planar path-generating multi-link mechanisms with lower pairs. In this approach, the mechanism is viewed as a suitable combination of some simpler components called "modules". The design of the modules is realized by applying the socalled Precision-Point, Subdomain and Galerkin methods. The approach is illustrated on 4-bar, slider-crank, double-slider, 5-bar and 6-link mechanisms. Numerical results prove the effectiveness of the approach.
The Properties of The Intensity-Curvature Measurement Approaches: Applications In Magnetic Resonance Imaging of The Human Brain
Authors: Ciulla Carlo , Shikoska Ustijana Rechkoska , Veljanovski Dimitar , Risteski Filip A.
Published: April 2018

The intensity-curvature measurement approaches (ICMAs) are re-sampling techniques. The intensity-curvature term is the product between the signal intensity and the classic-curvature and is the root concept at the foundation of the ICMAs. The concept offers six ICMAs: the classic-curvature (CC), the intensity-curvature functional (ICF), the signal resilient to interpolation (SRI), the resilient curvature (RC), the intensity-curvature term before interpolation (Eo(x, y)), and the intensity-curvature term after interpolation (EIN(x, y)). The ICMAs have the following properties. The CC and the ICF are mask images. The SRI is a filter. The RC is adept to invert, and simultaneously, to smooth and to magnify the grayscale of the image. The aforementioned properties are illustrated with two-dimensional theoretical images and with Magnetic Resonance Imaging (MRI) images of the human brain. The novelty of this work consists of the use of the Eo(x, y) and the EIN(x, y) in order to highlight human brain vessels identified with MRI. Journal of Institute of Science and Technology Volume 22, Issue 2, January 2018, Page: 19-31
Response of Soil Nematodes Under Different Pest Management Practices: A Field Experimental Approach in Tomato (Lycopersicon Esculentum L.) Growing Agro-Ecosystem
Authors: Gupta Dipak , Bhusal Daya Ram
Published: April 2018

The need of eco-friendly pest management practice is important to maintain soil biodiversity and sustainable agriculture. Therefore rigorous investigation is needed for the environmentally friendly pest management techniques worldwide including Nepalese Tomato growing farms. We conducted field experiment to monitor the diversity and community structure of soil nematodes under different pest management practices in Tomato (Lycopersicon esculentum) growing farm. The study was conducted during summer and winter season in 2015 in Tokha area of Northern part of Kathmandu valley. The field was designed as Urine mixture plot (MP), Pesticides plot (PP), Botanicals plots (BP) and Control plot (CP). Our result indicated the variation of abundance and diversity of nemato-fauna with treatment plots and seasons. The generic diversity and community composition of nematodes in Urine mixture treating plots (MP) was increased significantly whereas decreased in pesticide applying plot (PP). The F/B ratio was significantly affected with treatment system rather than seasonality and found to be increased in pesticides applying plots. The abundance samples of nematodes genera were well separated in our discriminate ordination. We highlight the need of further exploration on the diversity and community dynamics of soil nematodes under different pest management practices in Tomato growing Nepalese agro-farms for sustainable soil ecosystem service. Journal of Institute of Science and Technology Volume 22, Issue 2, January 2018, Page: 45-55
On Kenmotsu Manifolds Satisfying Certain Curvature Conditions
Authors: Shah Riddhi Jung
Published: April 2018

Available with full text.Journal of Institute of Science and Technology Volume 22, Issue 2, January 2018, Page: 56-62
Zero-Truncated Discrete Two-Parameter Poisson-Lindley Distribution with Applications
Authors: Shanker Rama , Shukla Kamlesh Kumar
Published: April 2018

A zero-truncated discrete two-parameter Poisson-Lindley distribution (ZTDTPPLD), which includes zero-truncated Poisson-Lindley distribution (ZTPLD) as a particular case, has been introduced. The proposed distribution has been obtained by compounding size-biased Poisson distribution (SBPD) with a continuous distribution. Its raw moments and central moments have been given. The coefficients of variation, skewness, kurtosis, and index of dispersion have been obtained and their nature and behavior have been studied graphically. Maximum likelihood estimation (MLE) has been discussed for estimating its parameters. The goodness of fit of ZTDTPPLD has been discussed with some data sets and the fit shows satisfactory over zero – truncated Poisson distribution (ZTPD) and ZTPLD. Journal of Institute of Science and TechnologyVolume 22, Issue 2, January 2018, Page: 76-85
Analysis of Phytoconstituents and Biological Activities on The Selected Medicinal Plants of Dolakha and Sindhualchowk District of Nepal
Authors: Subba Bimala , Thapa Susila
Published: April 2018

Phytochemical and biological activities of methanolic extract of seven plants viz. Scindapsus officinalis Schott. , Lepisorus loriformis, Nicotiana tabacum L., Clematis buchananiana DC., Astilbe rivularis D. Don, Potentilla fulgens Wall. ex Hook and Taxus wallichiana Zucc. were carried out. The brine shrimp bioassay showed that N. tabacum, A. rivularis, and P. fulgens were pharmacologically active. The antibacterial potential was studied against Staphylococcus aureus (gram positive bacteria) and Escherichia coli (gram negative bacteria) using Agar Well Diffusion Method. Roots of P. fulgens showed inhibition against gram positive bacteria while the rhizome of A. rivularis showed inhibition against both gram positive and gram negative bacteria. Antioxidant activity was evaluated by 2, 2-diphenyl-1-picryl hydrazyl (DPPH) free radical scavenging activity and ferric reducing antioxidant power FRAP assay. Both assays showed that P. fulgens has high antioxidant activities with (IC50 =15.57 ± 3.6) lower than standard ascorbic acid.  Journal of Institute of Science and TechnologyVolume 22, Issue 2, January 2018, Page: 140-147
What's in a Name? Shifting Identities of Traditional Organized Crime in Canada in the Transnational Fight against the Calabrian ‘Ndrangheta
Authors: Sergi Anna
Published: April 2018

The Italian antimafia authorities have warned Canadian law enforcement about the risks and the growing concerns for the infiltration of clans of the Calabrian mafia, known as ‘ndrangheta, in Eastern Canada. 3 The alarm linked to the rise of the ‘ndrangheta challenges the paradigms of traditional organized crime in Canada, because the ‘ndrangheta is presented as traditional but also innovative and more pervasive than other mafia-type groups. Through access to confidential investigations and interviews of key specialist law enforcement teams in Toronto and Montreal, this article investigates today's institutional perception of mafia – the ‘ndrangheta in particular – in Canada when compared to Italian conceptualizations. I will argue that the changes in narratives in Canada can be read in relation to changes in the Italian identity in the country, moving towards regionalization and specialist knowledge of ethnic differences.
Qualitatively Unpacking Canadian Public Safety Personnel Experiences of Trauma and Their Well-Being
Authors: Ricciardelli Rose , Carleton R. Nicholas , Groll Dianne , Cramm Heidi
Published: April 2018

We thematically analysed responses volunteered by 828 of the nearly 9,000 public safety personnel (PSP) who participated in an online survey on occupational stress injuries and symptoms. Participants responded to an open-ended optional request for “additional feedback” located at the end of the survey. Salient response themes reveal that, across occupations and organizations, PSP report witnessing, enduring, and encountering extensive trauma, directly and vicariously, acutely and cumulatively. PSP reported effects of such trauma on themselves and their families as including physical (e.g., headaches, back pain, cardiac arrest, digestive symptoms), psychological (e.g., crying, feeling unhappy, living in fear, experiencing anxiety and anger), and social or interpersonal impacts (e.g., social exclusion, avoidance, cynicism towards others). The effects on their families included marital breakdown and relationship dissolution with children, as well as increased familial stress, strain, and anger. PSP also reported fatalistic attitudes; specifically, they felt that nothing would change, that they had no voice, and that both their employer and the different levels of government did not care about their well-being.
Oberflächenvorbehandlung vor dem Galvanisieren
Authors: Uhlmann Eckart , Jaczkowski Robert
Published: April 2018

Kurzfassung

In diesem Beitrag wird die Eignung verschiedener Fertigungs- und Reinigungsverfahren als Vorbehandlungsverfahren vor dem Beschichten von Aluminiumwerkstücken aus AlMg3 sowie AlSi12 untersucht. Die Messung von Oberflächenkennwerten, insbesondere des Abrollwinkels α, erlaubte dabei eine Vorhersage über die Beschichtbarkeit der Werkstücke. Die Werkstücke wurden anschließend galvanisch beschichtet und die Schichthaftfestigkeit durch einen Gitterschnittversuch bestimmt.
Energieflexibilität im Maschinen- und Anlagenbau
Authors: Stoldt Johannes , Wolf Tom , Büttner Thomas , Schlegel Andreas , Langer Tino , Putz Matthias
Published: April 2018

Kurzfassung

Wollen Maschinen- und Anlagenbauunternehmen ihre Wettbewerbsfähigkeit erhalten, so sind sie gefordert, sich auf die Veränderungen im Zuge der Energiewende einzustellen. Dies umfasst vor allem die Synchronisation des Energiebedarfs ihrer Produktionsprozesse mit dem marktseitigen Energieangebot. Um insbesondere mittelständische Unternehmen dabei zu unterstützen, stellt der Beitrag ein Vorgehen und weitere Hilfsmittel (u. a. einen Maßnahmenkatalog) zur Identifikation, Bewertung und Auswahl geeigneter Maßnahmen vor.
Entwicklung einer Methode zur quantitativen, mehrdimensionalen Fabriklayoutplanung
Authors: Aurich Paul , Stonis Malte , Nyhuis Peter
Published: April 2018

Kurzfassung

Die derzeitig genutzten Methoden zur Planung von Fabriklayouts sind hinsichtlich ihrer Bewertungsmethoden beschränkt. Die Fabrikbewertung erfolgt entweder qualitativ oder quantitativ, hierbei aber beschränkt auf wenige Zielgrößen. Diese Defizite wurden durch die Entwicklung einer Methode zur quantitativen, mehrdimensionalen Ad-hoc-Fabrikbewertung überwunden. Auf dieser Basis ist es nun möglich, eine Fabriklayoutplanungsmethode zu erarbeiten, die den Planungsaufwand reduziert und die Lösungsgüte deutlich erhöht.
Braunschweiger Shopfloor Management Assessment
Authors: Dombrowski Uwe , Wullbrandt Jonas , Jäger Fabian , Linge Sophia
Published: April 2018

Kurzfassung

Ganzheitliche Produktionssysteme (GPS) sind heutzutage Stand der Technik in produzierenden Unternehmen. Mittlerweile etabliert sich neben den Lean-Methoden auch eine GPS-gerechte Führung – das Lean Leadership. Nachhaltiger Erfolg gelingt dabei vor allem durch Führung auf Shopfloor-Ebene und unter Einbeziehung von selbstständigen, zur Problemlösung befähigten Mitarbeitern – den wichtigsten Akteuren in einem Kontinuierlichen Verbesserungsprozess (KVP). Shopfloor Management (SFM) wird in vielen Unternehmen als zentrale Methode Ganzheitlicher Produktionssysteme praktiziert. Die Einführung der Methode sowie ihr Nutzen sind in der Literatur an vielen Stellen beschrieben, jedoch existiert bisher keine Systematik, um die Qualität des Shopfloor Managements zu bewerten. Insbesondere während der Implementierung der Methode kann die parallele Evaluierung Schwachstellen und Entwicklungsbedarfe aufzeigen und somit die nachhaltige Verankerung unterstützen. Dieser Beitrag stellt ein neuartiges Konzept zur qualitativen Erfolgsanalyse des Shopfloor Managements vor und zeigt die erfolgreiche Anwendung des Assessments anhand eines Praxisbeispiels.
Kollaboration und Interdisziplinarität: Die Triebfedern der Industrie 4.0
Authors: Ritter Armin , Sauer Olaf , Tschirner Christian
Published: April 2018

Kurzfassung

Die Entwicklung einer durchgängigen digitalen Prozesskette setzt die Schaffung geeigneter Kollaborationsplattformen voraus, auf deren Basis der gesamte Zusammenarbeitsprozess virtualisiert wird. Daneben ist jedoch auch eine Veränderung des Arbeitsverhaltens hin zu einer agilen Zusammenarbeit notwendig, einschließlich des Aufbaus neuer Tools und Kompetenzen. Ein pragmatisches Change Management, das mit dem digitalen Kompetenzaufbau gekoppelt ist, ist dabei ein zentraler Erfolgsfaktor.
Optimized Segmentation of the 3D Microstructure in Cast Al-Si Piston Alloys
Authors: Bugelnig K. , Germann H. , Steffens T. , Plank B. , Wilde F. , Boller E. , Requena G.
Published: April 2018

The thermomechanical behavior of cast Al-Si piston alloys is highly dependent on the condition of the highly interconnected hybrid 3D network which is composed of primary and eutectic silicon and intermetallic phases which are found embedded in the α-Al matrix. The very similar X-ray absorption of silicon and the α-Al matrix is problematic for the local identification of these phases and thus for the accurate segmentation and characterization of all rigid phases in the network when laboratory X-ray tomographs are used. A combination of conventional X-ray computed tomography, synchrotron computed tomography, and chemical deep etching performed on the same alloy and at the same position allows for an automatic segmentation and a more accurate characterization of phases across large representative volumes and thus provides the information necessary for a quantification of the whole 3D microstructure of the alloys.
Distribution and academic significance of learning approaches among pre-clinical medical students at Trinity School of Medicine, St Vincent and the Grenadines
Authors: Paudel Keshab Raj , Nepal Hari Prasad , Shrestha Binu , Panta Raju , Toth Stephen
Published: April 2018

Purpose: Different students may adopt different learning approaches: namely, deep and surface. This study aimed to characterize the learning strategies of medical students at Trinity School of Medicine and to explore potential correlations between deep learning approach and the students’ academic scores. Methods: The study was a questionnaire-based, cross-sectional, observational study. A total of 169 medical students in the basic science years of training were included in the study after giving informed consent. The Biggs’s Revised Two-Factor Study Process Questionnaire in paper form was distributed to subjects from January to November 2017. For statistical analyses, the Student t-test, 1-way analysis of variance followed by the post-hoc t-test, and the Pearson correlation test were used. The Cronbach alpha was used to test the internal consistency of the questionnaire. Results: Of the 169 subjects, 132 (response rate, 78.1%) completely filled out the questionnaires. The Cronbach alpha value for the items on the questionnaire was 0.8. The score for the deep learning approach was 29.4± 4.6, whereas the score for the surface approach was 24.3± 4.2, which was a significant difference (P< 0.05). A positive correlation was found between the deep learning approach and students’ academic performance (r= 0.197, P< 0.05, df= 130). Conclusion: Medical students in the basic science years at Trinity School of Medicine adopted the deep learning approach more than the surface approach. Likewise, students who were more inclined towards the deep learning approach scored significantly higher on academic tests.
Esse? Percipi? Referentiality and Subjectivity in Footfalls
Authors: Gaillard Julie
Published: April 2018

This article analyzes how, in Footfalls, Beckett erodes subjective certainty as well as bodily evidence by calling into question the stability of referential mechanisms. Focusing on proper names and analyzing closely how they articulate (or rather disarticulate) personal pronouns and bodily referents, it shows how their unhinging produces a de-stabilization of reality, which has the paradoxical effect of calling into question the subjective unity and permanence of the body present on stage. This article follows the various movements of this short play to trace series of shifts and glitches in the pragmatics of enunciation, and shows how these glitches call into question the identity of the enunciating ‘I’ as well as the reality of its links to the body that it refers to.
Choreographed Footfalls
Authors: Revely-Calder Cal
Published: April 2018

In Samuel Beckett's play Footfalls, a woman called ‘May’ walks back and forth. In this essay, I suggest that the play's physical plainness may be its most difficult aspect: Footfalls is a prime example of how Beckett's later plays are more like enigmas than riddles, frustrating us without an eventual solution. As we try to describe and interpret May's motions, we're continually repelled, and denied the critical certainty we might want. But that desire may be the wrong one to have; instead, I would venture that the play's careful choreography is both the thing that's expressive, and the thing being expressed. Focusing on this choreographic metaphor, and drawing on dance practitioners and theorists from Lucia Ruprecht to Merce Cunningham, I suggest that Footfalls is about itself, which is to say that it's about ‘about-ness’ – how we search for words to describe motions that seem resistant to paraphrase.

In the late 1970s, Beckett was certainly interested in dance. This wasn't evident only in the case of Billie Whitelaw and Footfalls. Directing Come and Go (as Kommen und Gehen) in 1978, Beckett wanted the performers’ shoes to be ‘genre ballerine’; writing Quad in 1980, he specified that ‘some ballet training’ on the performers’ part was ‘desirable’. I caution against misreading these plays as dances – they are not – but suggest that corporeal discipline was something with which Beckett became fixated. And this wasn't only a matter of stagecraft, as we can see by reading the late poetic sequence mirlitonnades, written in French between 1976 and 1980 – the period in which Beckett finished both Footfalls and its French sibling Pas. These poems are tightly linked to the plays alongside which they were written; the link, in David Wheatley's phrase, can be seen in their ‘harnessing of speech to carefully choreographed movement’. The mirlitonnades place a repeated emphasis upon their rhythms, and the ways in which they intimate physical movement without literally enacting it. This is so because, as Eric Griffiths puts it, ‘the reader must inform writing with a sense of the writer it calls up – an ideal body, a plausible voice’. In Beckett's later work, I suggest, he was attentive to how the conjunction of body and voice appeared, as much as how it meant – and he wanted to augment the difficulties that this poses for his critics’ task.
Developing inclusive later life learning environments: insights from intersectional analysis of ageing and lesbian, gay, transgendered and bisexual identities
Authors: McAllister Christopher
Published: April 2018

To date there has been minimal empirical inquiry on what may constitute inclusive learning environments for older (50+ years) lesbian, gay, bisexual and transgendered (LGBT) adults. This paper draws upon a recent life-histories study with older LGBT adults in Scotland to consider how such environments can be developed. To do so, intersectional analysis is applied to interrogate how participants’ lived realities and sense of self are enabled and constrained by the interactions between their diverse ageing, LGBT and other identities in the particular contexts of later life, post work. The paper argues that by adopting this approach to intersectional analysis, critical educational gerontology (CEG) is equipped to more effectively realise inclusive, meaningful and potentially empowering learning environments for older LGBT adults. These will be more attuned to their later life realities, enabling them to reflect on the changing significance of being LGBT as they age, while allowing potential for personal growth and renewed sense of self.
Christianisation et monde colonial à la Martinique sous l’Ancien Régime
Authors: Elisabeth Léo
Published: April 2018

In the colonies, evangelization was first State matter. No bishop, only apostolic prefects for each religious order or congregation. Division in the clergy and wage promoted an early secularization. Social and administrative pressures connected to slavery influenced apostleship. During the seventeenth century, faith was sufficient to receive sacraments. In the eighteenth, understanding of mysteries, sacrilege, security, mixed together to increase the workload by making unsacred most holy days, and restricted religious instruction given to free people of color or slaves. Baptism and wedding were not only sacraments, but also civil acts controlled by administration, in order to define the legal status of people : free people of colour could not marry a slave without an authorization and the payment of a heavy tax ; the condition of children followed the status of the mother. No wedding, no communion. Communion and wedding become social markers. Superstitions remained shared.
Field-controlled ultrafast magnetization dynamics in two-dimensional nanoscale ferromagnetic antidot arrays
Authors: De Anulekha , Mondal Sucheta , Sahoo Sourav , Barman Saswati , Otani Yoshichika , Mitra Rajib Kumar , Barman Anjan
Published: April 2018

Ferromagnetic antidot arrays have emerged as a system of tremendous interest due to their interesting spin configuration and dynamics as well as their potential applications in magnetic storage, memory, logic, communications and sensing devices. Here, we report experimental and numerical investigation of ultrafast magnetization dynamics in a new type of antidot lattice in the form of triangular-shaped Ni80Fe20 antidots arranged in a hexagonal array. Time-resolved magneto-optical Kerr effect and micromagnetic simulations have been exploited to study the magnetization precession and spin-wave modes of the antidot lattice with varying lattice constant and in-plane orientation of the bias-magnetic field. A remarkable variation in the spin-wave modes with the orientation of in-plane bias magnetic field is found to be associated with the conversion of extended spin-wave modes to quantized ones and vice versa. The lattice constant also influences this variation in spin-wave spectra and spin-wave mode profiles. These observations are important for potential applications of the antidot lattices with triangular holes in future magnonic and spintronic devices.
Fertility Massage: an Unethical Practice?
Authors: Fogarty, PhD Sarah
Published: April 2018

-
Multiple Gaps in the Disk of the Class I Protostar GY 91
Authors: Sheehan Patrick D. , Eisner Josh A.
Published: April 2018

We present the highest spatial resolution Atacama Large Millimeter/submillimeter Array (ALMA) observations to date of the Class I protostar GY 91 in the ρ Ophiuchus L1688 molecular cloud complex. Our 870 μm and 3 mm dust continuum maps show that the GY 91 disk has a radius of ∼80 au, and an inclination of ∼40°, but most interestingly that the disk has three dark lanes located at 10, 40, and 70 au. We model these features assuming they are gaps in the disk surface density profile and find that their widths are 7, 30, and 10 au. These gaps bear a striking resemblance to the gaps seen in the HL Tau disk, suggesting that there may be Saturn-mass planets hiding in the disk. To constrain the relative ages of GY 91 and HL Tau, we also model the disk and envelope of HL Tau and find that they are of similar ages, although GY 91 may be younger. Although snow lines and magnetic dead zones can also produce dark lanes, if planets are indeed carving these gaps then Saturn-mass planets must form within the first ∼0.5 Myr of the lifetime of protoplanetary disks.