MONITORIA NA DISCIPLINA MATEMÁTICA BÁSICA I

O presente trabalho pretende relatar a experiência de participar da monitoria da disciplinaMatemática Básica I, junto a Universidade do Sul e Sudeste do Pará (UNIFESSPA) no campus de Santana doAraguaia, para os alunos ingressantes no curso de Licenciatura Plena em Matemática. A monitoria consiste narealização de atividades didáticas, sob a colaboração do professor, e permite uma primeira experiência para oaluno monitor como professor, contribuindo assim para a sua formação acadêmica e seu desenvolvimento paraa futura profissão de professor de Matemática. Esta experiência facilita o contato prévio com a docência, nessesentido, apresenta-se neste relato a importância da monitoria, tanto para os alunos que participam, quanto parao monitor, suas vantagens e dificuldades que surgem no decorrer da disciplina. No entanto, a relevância damonitoria é de fato essencial para a formação acadêmica e incontestável, mas esta monitoria em particular noperíodo de 2020.5 foi sem dúvida a mais desafiadora que todos os discentes e docentes realizaram, por haverde maneira atípicas aulas a distância, on-line, por decorrência do distanciamento social devido a pandemia queocorreu neste período. Por esse motivo, a adaptação e superação das dificuldades foram de suma importância,percebeu-se que devido ao novo formato de aulas a procura pela monitoria seria maior, foi necessário tomarmedidas para proporcionar uma melhor interação entre os alunos da disciplina e o aluno monitor, criando,assim, estratégias metodológicas, como o uso de tecnologias. De acordo com os resultados, mostra-se que épossível que os alunos se adaptem com novas maneiras de ensinar e aprender e essa experiência proporcionouum crescimento pessoal e profissional aos futuros Docentes de Matemática, além de favorecer uma visão reale permitir criar novas maneiras de proporcionar um ensino de qualidade

Controle de Pseudoplusia includens (Walker, 1857) na cultura de soja com diferentes inseticidas

The aim of this research was to test the efficacy of different insecticides, and dosage against Pseudoplusia includens in the soybean culture. The treatments were: (1) alphacypermethrin + teflubenzuron, (2) teflubenzuron, (3) diflubenzuron and (4) profenophos + lufenuron, in different doses. All the insecticides tested in this research presented high efficacy on the control of Pseudoplusia includens in the soybean culture. These insecticides and dosages were: (1) mixture of alphacypermethrin and teflubenzuron at dosages from 9.0 to 11.25 g a.i.ha-1, (2) teflubenzuron at dosage from 6 to 12 g a.i.ha-1, (3) diflubenzuron at dosage from 10 to 20 g a.i.ha-1 and (4) the mixture profenophos and lufenuron at dosage 75.0 and 7.5 g a.i.ha-1, respectively. All these insecticides after 15 days of application promote 100% dead caterpillars. None these insecticides decrease soybean yield.O objetivo desse trabalho foi testar a eficácia de diferentes inseticidas e doses para o controle da Pseudoplusia includens em soja. Os tratamentos consistiram de: (1) alfacipermetrina e teflubenzuron, (2) teflubenzuron, (3) diflubenzuron e (4) profenofós e lufenuron, em diferentes dosagens. Todos os inseticidas testados nessa pesquisa apresentaram alta eficiência no controle de Pseudoplusia includens em soja. Esses inseticidas e dosagens foram: (1) mistura de alfacipermetrina e teflubenzuron nas dosagens de 9,0 a 11,25 g i.a.ha-1, (2) teflubenzuron na dosagem de 6 a 12 g i.a.ha-1, (3) diflubenzuron nas dosagens de 10 a 20 g i.a.ha-1 e (4) profenofós e lufenuron na dosagem de 75,0 e 7,5 g i.a.ha-1, respectivamente. Todos os inseticidas aos 15 dias da aplicação promoveram 100% de morte nas lagartas. Nenhum destes inseticidas diminui a produtividade da cultura

The Precursors and Products of Justice Climates: Group Leader Antecedents and Employee Attitudinal Consequences

Drawing on the organizational justice, organizational climate, leadership and personality, and social comparison theory literatures, we develop hypotheses about the effects of leader personality on the development of three types of justice climates (e.g., procedural, interpersonal, and informational), and the moderating effects of these climates on individual level justice- attitude relationships. Largely consistent with the theoretically-derived hypotheses, the results showed that leader (a) agreeableness was positively related to procedural, interpersonal and informational justice climates, (b) conscientiousness was positively related to a procedural justice climate, and (c) neuroticism was negatively related to all three types of justice climates. Further, consistent with social comparison theory, multilevel data analyses revealed that the relationship between individual justice perceptions and job attitudes (e.g., job satisfaction, commitment) was moderated by justice climate such that the relationships were stronger when justice climate was high

A 1,000 Frames/s Programmable Vision Chip with Variable Resolution and Row-Pixel-Mixed Parallel Image Processors

A programmable vision chip with variable resolution and row-pixel-mixed parallel image processors is presented. The chip consists of a CMOS sensor array, with row-parallel 6-bit Algorithmic ADCs, row-parallel gray-scale image processors, pixel-parallel SIMD Processing Element (PE) array, and instruction controller. The resolution of the image in the chip is variable: high resolution for a focused area and low resolution for general view. It implements gray-scale and binary mathematical morphology algorithms in series to carry out low-level and mid-level image processing and sends out features of the image for various applications. It can perform image processing at over 1,000 frames/s (fps). A prototype chip with 64 × 64 pixels resolution and 6-bit gray-scale image is fabricated in 0.18 μm Standard CMOS process. The area size of chip is 1.5 mm × 3.5 mm. Each pixel size is 9.5 μm × 9.5 μm and each processing element size is 23 μm × 29 μm. The experiment results demonstrate that the chip can perform low-level and mid-level image processing and it can be applied in the real-time vision applications, such as high speed target tracking

Atropselective syntheses of (-) and (+) rugulotrosin A utilizing point-to-axial chirality transfer

Chiral, dimeric natural products containing complex structures and interesting biological properties have inspired chemists and biologists for decades. A seven-step total synthesis of the axially chiral, dimeric tetrahydroxanthone natural product rugulotrosin A is described. The synthesis employs a one-pot Suzuki coupling/dimerization to generate the requisite 2,2'-biaryl linkage. Highly selective point-to-axial chirality transfer was achieved using palladium catalysis with achiral phosphine ligands. Single X-ray crystal diffraction data were obtained to confirm both the atropisomeric configuration and absolute stereochemistry of rugulotrosin A. Computational studies are described to rationalize the atropselectivity observed in the key dimerization step. Comparison of the crude fungal extract with synthetic rugulotrosin A and its atropisomer verified that nature generates a single atropisomer of the natural product.P50 GM067041 - NIGMS NIH HHS; R01 GM099920 - NIGMS NIH HHS; GM-067041 - NIGMS NIH HHS; GM-099920 - NIGMS NIH HH

The SDSS-III Baryon Oscillation Spectroscopic Survey: Quasar Target Selection for Data Release Nine

The SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS), a five-year spectroscopic survey of 10,000 deg^2, achieved first light in late 2009. One of the key goals of BOSS is to measure the signature of baryon acoustic oscillations in the distribution of Ly-alpha absorption from the spectra of a sample of ~150,000 z>2.2 quasars. Along with measuring the angular diameter distance at z\approx2.5, BOSS will provide the first direct measurement of the expansion rate of the Universe at z > 2. One of the biggest challenges in achieving this goal is an efficient target selection algorithm for quasars over 2.2 < z < 3.5, where their colors overlap those of stars. During the first year of the BOSS survey, quasar target selection methods were developed and tested to meet the requirement of delivering at least 15 quasars deg^-2 in this redshift range, out of 40 targets deg^-2. To achieve these surface densities, the magnitude limit of the quasar targets was set at g <= 22.0 or r<=21.85. While detection of the BAO signature in the Ly-alpha absorption in quasar spectra does not require a uniform target selection, many other astrophysical studies do. We therefore defined a uniformly-selected subsample of 20 targets deg^-2, for which the selection efficiency is just over 50%. This "CORE" subsample will be fixed for Years Two through Five of the survey. In this paper we describe the evolution and implementation of the BOSS quasar target selection algorithms during the first two years of BOSS operations. We analyze the spectra obtained during the first year. 11,263 new z>2.2 quasars were spectroscopically confirmed by BOSS. Our current algorithms select an average of 15 z > 2.2 quasars deg^-2 from 40 targets deg^-2 using single-epoch SDSS imaging. Multi-epoch optical data and data at other wavelengths can further improve the efficiency and completeness of BOSS quasar target selection. [Abridged]Comment: 33 pages, 26 figures, 12 tables and a whole bunch of quasars. Submitted to Ap

Effects of two contrasting canopy manipulations on growth and water use of London plane (Platanus x acerifolia) trees

Aims: Two contrasting canopy manipulations were compared to unpruned controls on London plane trees, to determine the effects on canopy regrowth, soil and leaf water relations. Methods: ‘Canopy reduction’, was achieved by removing the outer 30 % length of all major branches and ‘canopy thinning’, by removing 30 % of lateral branches arising from major branches. Results: Total canopy leaf areas recovered within two and three years of pruning for the canopy-thinned and reduced trees respectively. Canopy reduction increased mean leaf size, nitrogen concentration, canopy leaf area density and conserved soil moisture for up to 3 years, whereas canopy thinning had no effects. Another experiment compared more severe canopy reduction to unpruned trees. This produced a similar growth response to the previous experiment, but soil moisture was conserved nearer to the trunk. Analysis of 13C and 18O signals along with leaf water relations and soil moisture data suggested that lower boundary layer conductance within the canopy-reduced trees restricted tree water use, whereas for the canopy-thinned trees the opposite occurred. Conclusions: Only canopy reduction conserved soil moisture and this was due to a combination of reduced total canopy leaf area and structural changes in canopy architecture

Worldwide topology of the scientific subject profile: a macro approach in the country level

[Background] Models for the production of knowledge and systems of innovation and science are key elements for characterizing a country in view of its scientific thematic profile. With regard to scientific output and publication in journals of international visibility, the countries of the world may be classified into three main groups according to their thematic bias.[Methodology/Principal Findings] This paper aims to classify the countries of the world in several broad groups, described in terms of behavioural models that attempt to sum up the characteristics of their systems of knowledge and innovation. We perceive three clusters in our analysis: 1) the biomedical cluster, 2) the basic science & engineering cluster, and 3) the agricultural cluster. The countries are conceptually associated with the clusters via Principal Component Analysis (PCA), and a Multidimensional Scaling (MDS) map with all the countries is presented.[Conclusions/Significance] As we have seen, insofar as scientific output and publication in journals of international visibility is concerned, the countries of the world may be classified into three main groups according to their thematic profile. These groups can be described in terms of behavioral models that attempt to sum up the characteristics of their systems of knowledge and innovation