bluuebunny/crossref_metadata_2025 huggingface dataset:
Plano Diretor de cidades gêmeas: análise sob a ótica da teoria institucional de Douglass North.
Authors: Xavier Delson Fernando Barcellos , Nantes Rosalina Alves , Oliveira Saiera Silva de
Published: April 2020

A Portaria 213/2016 do Ministério da Integração Nacional, reconhece 32 cidades gêmeas em razão do território municipal fazer limite com o país vizinho e sua sede se localizar no limite internacional. Fundamentando-se no path dependence, onde as influências históricas são responsáveis pela manifestação das instituições no instrumento normativo, destaca-se o Plano Diretor Municipal, obrigatório para cidades com mais de 20 mil habitantes e requisito para obtenção de determinados recursos junto ao Governo Federal. A metodologia tem perspectiva exploratória descritiva ao analisar o conteúdo de cada instrumento normativo dos municípios de fronteira que instituíram o Plano Diretor, na interpretação das características individuais, utilizando do aporte teórico da teoria institucional. Analisou-se os Planos Diretores de doze cidades-gêmeas de fronteira, para verificar se o modelo adotado contemplou a realidade dos municípios. Os resultados apontaram a não enfatização às questões históricas que influenciam no desenvolvimento das cidades, concluindo que os Planos Diretores de cidades-gêmeas de fronteira podem explorar em seu instrumento normativo nessa variável identificada, recomendando que em pesquisas futuras se investigue o motivo pelo qual mais de 66% dos municípios de fronteira não consideram relevantes a serem incluídas no Plano Diretor as potencialidades históricas que marcam a região de fronteira gêmea.
PARÂMETROS TECNOLÓGICOS, COMERCIAIS E NUTRACÊUTICOS DO AÇAÍ (Euterpe oleracea)
Authors: Furlaneto Fernanda De Paiva Badiz , Soares Anelisa De Aquino Vidal Lacerda , Furlaneto Laura Badiz
Published: April 2020

Dada à tendência crescente do consumo do açaí-fruto objetivou-se sumariar dados referentes aos parâmetros tecnológicos, comerciais e nutracêuticos do açaí (Euterpe oleracea) explorado no Brasil. Os dados foram apresentados na forma descritiva, após a revisão integrativa da literatura. Notou-se que a exploração comercial do açaí, por ser uma atividade relativamente recente (década de 1990), precisa de ajustes tecnológicos relacionados ao sistema de produção. Há necessidade de estudos referentes ao melhoramento do açaizeiro visando disponibilizar novas cultivares para o plantio em terra firme. Atualmente, o maior entrave na cadeia produtiva do açaí refere-se ao transporte do campo para os entrepostos e/ou indústria de processamento e a logística de distribuição do produto processado. A alta incidência da informalidade ocasiona contaminação e descaracterização dos produtos colocando em riscos à saúde do consumidor. Por ser um produto altamente perecível, mesmo sob refrigeração, torna-se primordial pesquisas direcionadas para tecnologias de processamento, e conservação do açaí. Observou-se ser imprescindível intensificar a fiscalização sanitária nos locais de venda direta ao consumidor e agroindústrias de processamento levando em consideração o fato da polpa do açaí ser alcalina, facilitando a proliferação de fungos e bactérias, além do risco de transmissão oral da Doença de Chagas. Pesquisas comprovaram efeitos benéficos para a saúde humana de alguns compostos bioativos presentes no açaí. Em termos de uso como fármacos vislumbra-se diversas alternativas de emprego na área da saúde a curto e médio prazo. Tal aptidão tem despertado o interesse de pesquisas na comunidade científica nacional e internacional.
A modified bordered construction for self-dual codes from group rings
Authors: GILDEA Joe , KAYA Abidin , TYLYSHCHAK Alexander , YILDIZ Bahattin
Published: April 2020

We describe a bordered construction for self-dual codes coming from group rings. We apply the constructions coming from the cyclic and dihedral groups over several alphabets to obtain extremal binary self-dual codes of various lengths. In particular we find a new extremal binary self-dual code of length 78.
Some bounds arising from a polynomial ideal associated to any $t$-design
Authors: J. MARTIN William , R. STINSON Douglas
Published: April 2020

We consider ordered pairs $(X,\mathcal{B})$ where $X$ is a finite set of size $v$ and $\mathcal{B}$ is some collection

of $k$-element subsets of $X$ such that every $t$-element subset of $X$ is contained in exactly $\lambda$

``blocks'' $B\in \mathcal{B}$ for some fixed $\lambda$. We represent each block $B$ by a zero-one vector $\bc_B$ of

length $v$ and explore the ideal $\mathcal{I}(\mathcal{B})$ of polynomials in $v$ variables with complex coefficients which vanish on

the set $\{ \bc_B \mid B \in \mathcal{B}\}$. After setting up the basic theory, we investigate two parameters related to

this ideal: $\gamma_1(\mathcal{B})$ is the smallest degree of a non-trivial polynomial in the ideal $\mathcal{I}(\mathcal{B})$

and $\gamma_2(\mathcal{B})$ is the smallest integer $s$ such that $\mathcal{I}(\mathcal{B})$ is generated by a set of polynomials

of degree at most $s$. We first prove the general bounds $t/2 < \gamma_1(\mathcal{B}) \le \gamma_2(\mathcal{B}) \le k$.

Examining important families of examples, we find that, for symmetric 2-designs and

Steiner systems, we have $\gamma_2(\mathcal{B}) \le t$. But we expect $\gamma_2(\mathcal{B})$

to be closer to $k$ for less structured designs and we indicate this by constructing infinitely many

triple systems satisfying $\gamma_2(\mathcal{B})=k$.
Discontinuities in photonic waveguides: rigorous Maxwell-based 3D modeling with the finite element method
Authors: Demésy Guillaume , Renversez Gilles
Published: April 2020

In this paper, a general methodology to study rigorous discontinuities in open waveguides is presented. It relies on a full vector description given by Maxwell’s equations in the framework of the finite element method. The discontinuities are not necessarily small perturbations of the initial waveguide and can be very general, such as plasmonic inclusions of arbitrary shapes. The leaky modes of the invariant structure are first computed and then injected as incident fields in the full structure with obstacles using a scattered field approach. The resulting scattered field is finally projected on the modes of the invariant structure making use of their bi-orthogonality. The energy balance is discussed. Finally, the modes of open waveguides periodically structured along the propagation direction are computed. The relevant complex propagation constants are compared to the transmission obtained for a finite number of identical cells. The relevance and complementarity of the two approaches are highlighted on a numerical example encountered in infrared sensing. Open source models allowing us to retrieve most of the results of this paper are provided.
Multi-hop nondestructive teleportation between terminal nodes equipped with limited technology
Authors: Fu Fenxiang , Li Huayang , Xue Shibei , Jiang Min
Published: April 2020

In this paper, we propose a scheme for the multi-hop nondestructive teleportation of an arbitrary single-qudit state via channel modulation performed by one cloud node in a network. Considering the limited quantum technology of the sender, the receiver, and the ordinary intermediate nodes, we assume that there are certain cloud nodes in a quantum network equipped with quantum processing capability of performing high-dimensional multi-qudit unitary operations. In our scheme,

N

intermediate nodes, involving one cloud node and

N
−
1

ordinary relay nodes, are connected in a chain through

N
+
1

different non-maximally entangled Bell pairs. Our scheme reduces the hardware requirement of the terminals, which makes it more flexible and adaptable in a network. In addition, our scheme enables preservation of the original single-qudit state, even if the teleportation fails. Our finding provides a methodology for the multi-hop nondestructive teleportation in a network with limited technical processing capabilities of terminals.
Luminescence in Africa: a brief overview [Invited]
Authors: Menon Samvit G. , Swart Hendrik C.
Published: April 2020

A short overview of the luminescence research done in Africa is presented. A summary of the number of publications, with the necessary explanation, is given to elaborate on the research done to date. Most of the research was done on phosphor materials as well as luminescence dating by using optically stimulated luminescence. Phosphor materials have several applications, which are given as examples of the progress of research in Africa. A short future perspective is added at the end of the overview.
Integrated coherent optical receiver with feed-forward carrier recovery
Authors: Xuan Zhe , Aflatouni Firooz
Published: April 2020

Coherent optical communication provides optical links with a high spectral efficiency and sensitivity. An essential feature of a coherent optical receiver is to phase lock the optical local oscillator to the carrier of the incoming signal. In this work, we propose and demonstrate, for the first time, a novel coherent optical receiver, where the relative instantaneous phase between the incoming optical carrier and a semiconductor laser (SCL), serving as the optical local oscillator, is first detected using a balanced photodiode, filtered, and used in a feed-forward scheme to modify the phase of the optical local oscillator, effectively recovering the input carrier, which is then used for data recovery. The proposed architecture leverages high-performance on-chip photonic devices to realize a low-power coherent optical receiver without utilizing a phase-locked loop and eliminates the required high data-rate ADC, lowering the complexity of the backend DSP. The photonic part of the implemented prototype was integrated on a 180 nm silicon-on-insulator photonic process within a footprint of 1.0 mm × 0.8 mm. Clock and data recovery at 10 GBaud/s with bit-error-rates better than 10−6 and 10−3 for optical BPSK and QPSK have been demonstrated, respectively.
Diode-pumped cw Alexandrite laser with temporally stable 6.5 W in TEM00 operation with prospect of power scaling
Authors: Walochnik Martin , Jungbluth Bernd , Huber Hans , Ammersbach Jana , Munk Alexander , Strotkamp Michael , Traub Martin , Hoffmann Dieter , Poprawe Reinhart
Published: April 2020

We present the design of a longitudinally diode-pumped Alexandrite laser in continuous-wave operation and resulting performance data. A laser power of 6.5 W in fundamental mode operation was measured, which is, to the best of our knowledge, the highest laser power in fundamental mode operation yet reported. The laser crystal was pumped by two diode modules emitting at 637 nm. The pump radiation was polarization-combined and spatially symmetrized. The laser operates at an output power of 6.5 W with an optical-to-optical efficiency of 26%, temporally stable output with stability of 8% on ms timescale, a beam quality of M2 = 1.1 in both spatial directions and emission of an output wavelength of 752 nm. Measurements of the thermal dioptric power at pumping intensities up to 9.5 kW/cm2 support the appropriate approach of the design. Based on our results, we estimate the potential and show our concept for future scaling of the output power.
Noise evolution with the phase-sensitive gain in a hybrid fiber phase-sensitive amplifier
Authors: Liu Zhanchang , Chen Zhirong , Guo Xiaojie , Du Jiangbing , Li Zhaohui
Published: April 2020

We investigate the noise evolution of a hybrid fiber phase-sensitive amplifier (PSA) with an erbium-doped fiber amplifier (EDFA) as a function of the phase-sensitive gain. The noise performance of the hybrid amplifier with a large overall gain of 45.6 dB is experimentally evaluated in optical and electrical domains. The experimental results are in good agreement with theory, showing that significant improvement of the overall noise figure (NF) of the hybrid amplifier occurs in a low PSA gain region. A combined NF below 3 dB has been obtained in the hybrid amplifier with a PSA gain of 9 dB, which is 1.1 dB better than a conventional EDFA with an equivalent overall gain.
Optimizing magnesium thin films for optical switching applications: rules and recipes
Authors: Karst Julian , Hentschel Mario , Sterl Florian , Linnenbank Heiko , Ubl Monika , Giessen Harald
Published: April 2020

While magnesium holds great potential as hydrogen storage material, interest has recently shifted to its use in optical switching applications. The hydrogen-induced phase transition from metallic magnesium to dielectric magnesium hydride is a promising candidate for switchable and active plasmonic systems. Most studies in the past have been performed on magnesium thin films and were directed to the investigation and optimization of hydrogen storage rather than to the optical properties. While these studies found a strong influence of the material morphology and crystallinity on the bulk and thin film properties, no in-depth study has revealed rules and recipes to tune and control the nanoscale morphology. Here, we demonstrate that the nanocrystallinity, that is, the crystallite size and morphology on the nanoscale, as well as the surface roughness of magnesium thin films in an optically switchable geometry, can be tuned and adjusted by a comprehensive set of evaporation parameters. The required film geometries, optical properties, and the applications at hand determine the deposition parameters and need to be chosen accordingly. Further, we find that the surface roughness changes drastically upon hydrogenation. Our results have an immediate impact on the understanding as well as the fabrication of optically active devices where magnesium is being used.
Apresentação
Authors: Camponez Carlos
Published: April 2020

https://doi.org/10.14195/2183-6019_1
Surveillance and Entanglement: How mandatory sex offender registration impacts criminalised survivors of human trafficking
Authors: Mogulescu Kate , Goodmark Leigh
Published: April 2020

This short article describes how some victims of human trafficking in the sex industry in the United States are prosecuted alongside traffickers and put on sex offender registries. The result is both a criminal record and an indefinite digital mark that limits their ability to find a job, settle in a new community, and see their children. The article concludes with a call for a careful, critical look at the system of sex offender registries and, more broadly, policing and prosecution strategies, including in cases of human trafficking, in the United States.
There’s an App for That? Ethical consumption in the fight against trafficking for labour exploitation
Authors: Limoncelli Stephanie
Published: April 2020

Among the market-based strategies being used to fight trafficking for labour exploitation are apps aimed at encouraging ethical consumption. Such apps have surfaced in tandem with the increased involvement of businesses in anti-trafficking efforts and the promotion of social entrepreneurism. In this article, I describe and critically analyse three apps aimed at individual consumers, arguing that they do little to actually address labour exploitation. They rest on questionable assumptions about consumption, employ problematic assessment methodologies, and rely on business models that do more to provide opportunities for social entrepreneurs in the burgeoning anti-trafficking field than solutions for labour exploitation in the global economy.
Same Same but Different? Gender, sex work, and respectability politics in the MyRedBook and Rentboy closures
Authors: Majic Samantha
Published: April 2020

Among the many policies implemented to eradicate trafficking in the sex industry, US government agencies have targeted online platforms that market and facilitate sex work. In this paper, I consider two instances of this activity: the Federal Bureau of Investigation’s 2014 raid and subsequent closing of MyRedbook.com, and the Department of Homeland Security’s 2015 raid and closing of Rentboy.com. Drawing from a qualitative-interpretive analysis of the media coverage of these raids, I show that the responses to them emphasised how the sites’ closures increased both men’s and women’s economic vulnerability, but the similarities largely ended there. Instead, I argue broadly that public responses to these events reflected and reinforced gendered notions of women’s vulnerability and men’s agency in the sex industry. While these responses may seem unsurprising, they are also potentially productive, calling into question the limits of respectability politics and signalling new solidarities in the struggle for sex worker rights.
Preliminary Chemical, Total Polyphenol, Total Flavonoid Contents and
Antioxidant Activity of Eucalyptus camaldulensis Dehnh.
Authors: Thuy Nguyen Van , Tien Nguyen Minh , Quy Nguyen Ngoc , Cang Mai Huyng , Quan Pham Minh , Bui Le Minh , Minh Le Van , Muoi Nguyen Van
Published: April 2020

This study aimed to identify phytochemicals and evaluate antioxidant activities of different extracts
from Eucalyptus camaldulensis, an aromatic plant in the Myrtaceace family. Examined extracts in
different solvents such as diethyl ether extract (DEE), the ethanolic extract (EE) and the aqueous
extract (AE). Total polyphenol and total flavonoid contents were determined via aluminum chloride
colorimetric method. Antioxidant activity was performed via ABTS and DPPH radical scavenging
assays. The results showed that a wide variety of pharmacologically active compounds such as alkaloid,
oil, flavonoid, triterpenoid, saponin, tannin and polyphenol were present in the leaves of Eucalyptus
camaldulensis. The result of quantitative determination showed that total polyphenol content of the
diethyl ether extract, ethanolic extract and aqueous extract achieved 73.47 ± 1.64, 306.48 ± 3.87 and
76.47 ± 1.64 mgGAE/g, respectively. Meanwhile, total flavonoid content was 41.74 ± 2.21, 45.98 ±
1.79 and 18.05 ± 0.81 mgQE/g, respectively. The ethanolic extract exhibited the highest DPPH (IC50
= 10.52 ± 0.14 μg/mL) and ABTS (IC50 = 9.86 ± 0.17 μg/mL). These results indicate that Eucalyptus
camaldulensis leaves can be used in dietary applications with the potential to reduce oxidative stress.
Potentiometric Studies of Mixed Copper(II) Complexes with δ-Aminolevulinic Acid and Some Selected Peptides
Authors: Al-Qahtani Salhah D.
Published: April 2020

Ternary complex formation in the system Cu(II)-ALA-L (ALA = δ-aminolevulinic acid drug; L = peptides) has been studied by pH-potentiometrically at 25 ± 0.1 ºC with I = 0.10 mol L-1 NaCl. The stability constants of binary and ternary complexes were calculated and interpretated. The concentration distribution of the complexes in solution was graphically presented using the HySS program. In addition, the values of Δlog K, log X and relative stabilization percentage (% R.S.) for the mixed-ligand complexes studied have been evaluated and discussed.
4-{[4-(Dimethylamino)benzylidene]amino}-5-methyl-4H-1,2,4-triazole-3-thiol as Corrosion Inhibitor for 316 Stainless Steel in 2.5 M Sulphuric Acid: An Experimental and Theoretical Investigation
Authors: Shet N. , Nazareth R. , Murthy P. Krishna , Suchetan P.A.
Published: April 2020

The corrosion inhibition competence of 4-{[4-(dimethylamino)benzylidene]amino}-5-methyl-4H-1,2,4-triazole-3-thiol (DBTT) on 316 stainless steel (316 SS) in 2.5 M H2SO4 was studied using various electrochemical as well as weight-loss measurements. The alloy surface was examined by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). Concentration effect on inhibition efficiency was investigated by varying concentration from 5 to 2000 ppm in the temperature range 30-60 °C. Results indicated mixed-type inhibitory action of DBTT. The efficiency increased with the raise in concentration of DBTT and temperature, reaching a highest of 92.4 % at 60 °C. Langmuir adsorption isotherm is obeyed. Calculation of different thermodynamic factors suggests that the adsorption is via both physisorption and chemisorption. In addition to these, several global reactivity parameters were calculated using DFT method at B3LYP/6-311++(d,p) basis set. Theoretical calculations are in good concurrence with the experimental results.
Synthesis and Characterization of [CrLCl2]Cl Complexes
(where L = S4 Macrocyclic Ligands): A Photoelectron Spectroscopic Study
Authors: Yadav Krishna Kumar , Kumar Anil , Aziz Mohd Kashif , Saba Rafat , Rajak Ashish , Srivastava Shekhar
Published: April 2020

In this study, five complexes of the type [CrLCl2]Cl [where L = S4 macrocyclic ligands] were prepared and analyzed by elemental analysis, molar conductivity, infrared and X-ray photoelectron spectroscopy and their geometry was established as octahedral.
Supramolecular Assembly Interceded by C-H···O Hydrogen Bonds and Nitro···π(arene) Interactions of Antibacterial 4-Methyl-(2-nitro benzylidene)aniline using DFT and its Spectral Studies
Authors: Mini R. , Beaula T. Joselin , Muthuraja P. , Jothy V. Bena
Published: April 2020

4-Methyl-(2-nitrobenzylidene)aniline (MNBA) was grown and its structural as well as spectral analyses (FT-IR, FT-Raman, UV and NMR) using experimental and DFT computations were performed to understand its biological applications. Stability of molecule, charge delocalization, charge analysis and charge transfer interactions had been explored to examine the structural analysis. Docking studies also suggested that 4-methyl-(2-nitrobenzylidene)aniline exhibit antibacterial activity. Supramolecular assembly of 4-methyl-(2-nitrobenzylidene)aniline molecule was interceded by C-H···O hydrogen bonds and nitro···π(arene) interactions.
Structure Elucidation of New Flavone and Antioxidant, Anti-Inflammatory Activities from Leaves of Vitex negundo Linn.
Authors: Manivannan R. , Devi D. Shiamala
Published: April 2020

A medicinally active chemical investigation on the leaves of Vitex negundo induce the confinement and identification of flavones apigenin (1), kaempferol (2) and one new flavone 5,7,4′-trihydroxy-3,3′,6,8-tetramethoxy flavone (3) and one known and rare flavone 5,7,4′-trihydroxy-6,3′,5′-trimethoxyflavone (4). These compounds composition were well-established on account of chromatography and spectroscopic sign and correlation with literature data. Antioxidant and carrageenan-induced paw edema in male albino rats were determined. Compounds 1 and 2 exhibited the most potent antioxidant effect at a dose of 200 mg/kg. Compound 1 produced noticeable anti-inflammatory effects (2.66 ± 0.08 at 3 h of injection) lightly off that of other compounds.
Solar Photocatalytic Activity of Nanocrystalline ZnO Obtained from Different Precursors
Authors: Quraishi I.S. , Pawar R.A. , Shinde D.R. , Tambade P.S. , Chaskar M.G.
Published: April 2020

In present study, ZnO photocatalysts were successfully synthesized by thermal decomposition of
different precursors. Thermal decomposition temperatures of precursors were obtained by
thermogravimetric analysis. The synthesized ZnO photocatalysts were characterized for their crystalline
phase, surface morphology and band gap, respectively by powder X-ray diffraction, scanning electron
microscopy and diffuse reflectance spectroscopic methods. Chemical analysis of synthesized ZnO
photocatalysts was performed for Zn(II) content. Photocatalytic activity of ZnO photocatalysts was
evaluated under the solar irradiation on crystal violet dye in aqueous solution. The results of experiments
showed that ZnO synthesized from zinc carbonate consists of higher photocatalytic activity than ZnO
synthesized from other precursors, which is even higher than bench mark Degussa P-25 TiO2
photocatalyst. ZnO synthesized from zinc carbonate is further used for mineralization of dyes from
three different effluents.
Synthesis, Spectroscopic and Antimicrobial Studies of Co(II), Cu(II) and
Ni(II) Complexes of Schiff Base Derived from Citral and L-Histidine
Authors: Bencela M. , Kumari S. Sudha
Published: April 2020

A new series of [M(L)Y]X·nH2O (M = Co(II) and Cu(II), where Y = H2O, X= NO3
–, n = 3), M = Ni(II),
where Y = H2O, X = NO3
–, n = 2) complexes with new Schiff base ligand (L) were synthesized by the
condensation of citral and L-histidine. The ligand and its M(II) complexes were characterized based
on elemental analysis, spectroscopic studies like FT-IR, electronic, 1H NMR, 13C NMR, ESR data,
also accompanied with thermal studies, magnetic susceptibility and molar conductance measurements.
In the light of these results, distorted square planar geometry were proposed for the M(II) complexes
in which the M(II) centres are present in NNO coordination sphere. To evaluate the biological properties
of the Schiff base ligand ( L) and its metal complexes, they were screened for their antibacterial and
antifungal activities and the results indicate that the complexes exhibit the significant activity.
Novel Cr(III), Co(II), Zn(II) and Cd(II) Complexes of Schiff Base Ligand Derived from
Salicyaldehyde and 3,4-Diaminotoluene: Synthesis, Characterization and Biological Screening
Authors: Singh Netra Pal , Agarwal Uma , Kumar Anuroop , Kumar Kaushal
Published: April 2020

A new Schiff base ligand (L) [2,2′-((1Z,1′Z)-((4-methyl-1,2-
phenylene)bis(azanylidene))bis(methanylylidene))diphenol], derived from condensation of
salicyaldehyde and 3,4-diamino toluene. The synthesized ligand was used for complexation with
different metal ions Cr(III), Co(II), Zn(II) and Cd(II) using a molar ratio of metal:ligand (1:1). The
synthesized ligand and its metal complexes were characterized by TLC, NMR (1H & 13C), UV-visible,
mass, FT-IR spectroscopies, elemental analysis, magnetic moment and conductivity measurement.
On the basis of above studies the proposed structure of synthesized mononuclear metal complexes have
been found to possess tetrahedral geometry while Cr(III) and Co(II) ions possess octahedral geometry.
The spectral studies revealed that the synthesized ligand was acting as tetradentate chelating agent
and coordinated to metal centre via deprotonated phenolate oxygen and azomethine-N atom. The
biological activity of ligand and its metal complexes were screened in vitro against Gram-negative
bacteria (Salmonella typhimurium and E. coli), Gram-positive bacteria (Staphylococcus aureus and
Bacillus subtilis) and fungus (Aspergillus fumigatus) to ascertain their antibacterial and antifungal
properties.
Analysis of Organochlorine Pesticides in Drinking Water and their Degradation by Synthesized Iron oxide Nanoparticles
Authors: Bharti  , Jangwan J.S. , Kumar Amrish , Kumar Vivek
Published: April 2020

This study reports the analysis of drinking water sources of river Krishni catchment, contaminated by
organochlorine pesticides. Iron oxide nanoparticles had been synthesized through co-precipitation method
and utilized for the degradation of organochlorine pesticides using advanced oxidation processes. The
sharp and narrow peaks of X-ray diffraction patterns revealed the crystalline nature of synthesized iron
oxide nanoparticles having size less than 100 nm. The nanoparticles were also characterized using TEM,
UV-Vis and IR spectral analysis. Liquid-liquid extraction and GC-MS were used for the detection analysis
of pesticides. GC-MS technique was used for further quantitative analysis of 19 pesticides. The degradation
analysis showed the maximum amount of degradation (up to 98.38 %) of organochlorine pesticides.
N-t-Butyl-α-aryl Nitrones as Potent Spin Traps: DFT Analysis of Electron
Localization Function Topology, Local Selectivity, Reactivity and Solvent Effects
Authors: Acharjee Nivedita , Mondal Sourav
Published: April 2020

Density functional theory studies were performed to analyze the reactivity and selectivity of radical
capture by N-t-butyl-α-aryl nitrones. Biologically relevant three important radicals viz. hydroxyl, methyl
and hydroperoxyl were selected for the study. Topological analysis of the electron localization function
(ELF) allows to classify these nitrones as zwitter-ionic type three atom components (TAC). Effects of
electron withdrawing and electron donating C-aryl substituents on the electronic chemical potentials,
global hardness, electrophilic and nucleophilic indices of nitrones were observed. Radical attack at
the carbon atom was predicted by Merz-Kollman algorithm, which is in agreement with the experiments
unlike the natural population analysis. Hydroxyl adducts were predicted to be more stable than methyl
and hydroperoxyl adducts. cis-Adducts were more stable than the trans-, with the highest differences
in stability noted for the methyl adducts. Relative energies of adducts was lowered in non-polar solvents
and thus increase in stability was observed along the series from water to heptane.
The π-π Stacking Interaction of Azaborine and Some of its Derivatives:
A Quantum Mechanical Study
Authors: Choudhury Mahasweta , Sharma Shruti , Ahmed Benzir , Bezbaruah Bipul
Published: April 2020

Derivatives of azaborine viz., diazaborines, borazine and pseudoborazine, but interestingly all of them
are not purely aromatic. The sequence of aromaticity of some azaborine and its derivatives were given
as azaborine > diazaborine > pesudoborazine > borazine. Also they have different ring bond distances
as B-B, N-N and B-N. Due to their difference in properties of aromaticity and structure, the π-π
stacking interaction was also very interesting and quite different from the normal aromatic systems.
Quantum mechanical, MP2 method is quite useful for determining the π-π stacking interaction in
different azaborine dimers and its derivatives for eclipsed and staggered stacked conformations. Stacked
models of azaborine derivatives with intermolecular rotations also shows different interaction energies.
Synthesis, Characterization and Docking Studies of Anti-HCV Molecules
Authors: Kumar Satish , Santra P.K. , Dwivedi J. , Aryan R.C.
Published: April 2020

The present study reports the synthesis and characterization of novel molecules inhibiting the spread
of hepatitis C. The molecules were designed as to block the NS3/4A protease enzyme on HCV RNA.
The molecules were synthesized using usual peptide synthesis techniques. Compounds with purity
more than 95% were characterized and docking studies were also performed. All the compounds were
characterized using physico-chemical techniques such as determination of melting point by DSC and
NMR, mass, IR spectral studies. The docking studies were also conducted to assess the activity of
molecules for inhibition of hepatitis C virus.
Nos entremeios: o biológico e o social no Brasil no contexto da COVID-19 e o papel da Atenção Primária à Saúde.
Authors: Spadacio Cristiane , Alves Márcia Guimarães de Mello
Published: April 2020

As autoras tomam a emergência da COVID-19 como analisador das relações estabelecidas entre o social e o biológico, a partir dos discursos político-sanitários vigentes, no contexto atual brasileiro. A base conceitual dessa reflexão é a noção de epidemia como “evento social” de Stark (1977), ou seja, considerando as dimensões ideológicas, políticas e socioeconômicas desse evento. Partem de notícias recentes, veiculadas em periódicos de pequena e grande circulação, para refletir acerca da contribuição das ciências sociais, sob, pelo menos, duas perspectivas: uma crítico-reflexiva, acerca de políticas neoliberais, especialmente no Brasil e sua influência na garantia de benefícios sociais para grupos mais vulneráveis; e outra, interacional, a fim de compreender os diversos significados de algumas das principais medidas para contenção da epidemia: o distanciamento e isolamento social. Por fim, procuram demonstrar a potência da Atenção Primária à Saúde no enfrentamento da
Ensino de álgebra no ensino fundamental: uma revisão histórica dos PCN à BNCC
Authors: Scremin Greice , Righi Flávia Pereira
Published: April 2020

Este trabalho apresenta e discute os resultados de um estudo documental realizado em uma pesquisa desenvolvida no contexto do Programa de Pós-graduação em Ensino de Ciências e Matemática da Universidade Franciscana. O objetivo foi realizar uma análise histórica das orientações para o ensino de álgebra nos anos finais do Ensino Fundamental. Tratou-se de um estudo documental nos Parâmetros Curriculares Nacionais (PCN) e na Base Nacional Comum Curricular (BNCC), referentes à área de Matemática, no componente curricular de Matemática. A análise de conteúdo buscou identificar as alterações ocorridas de um documento para outro, no que tange aos conteúdos de álgebra. Percebeu-se que a Álgebra esteve fortemente enraizada na Aritmética e no caráter tecnicista das operações, mas, na BNCC, o eixo ganhou destaque, assumindo o compromisso com a construção do pensamento e da linguagem algébrica e contribuindo com o desenvolvimento do pensamento computacional e com a argumentação matemática.
Currículo e ensino-aprendizagem da Matemática na educação ribeirinha no Amapá: um diálogo com a Etnomatemática
Authors: Custódio Elivaldo Serrão
Published: April 2020

O presente artigo busca investigar de que maneira o professor da educação básica utiliza do diálogo entre a etnomatemática e o processo de ensino e aprendizagem da matemática em sua prática pedagógica. Acredita-se que ao aplicar a etnomatemática em classe, os alunos conseguem perceber que a matemática tem relação com seu cotidiano, melhorando assim sua aprendizagem. Trata-se de um estudo exploratório quanti-qualitativo, que utilizou a bibliografia, a observação direta e o questionário como forma de investigação. Os resultados apontam que apesar das dificuldades enfrentadas pela escola pesquisada, o docente busca aplicar a etnomatemática com seus discentes, fazendo com que eles se sintam mais valorizados, tornando as aulas mais atrativas, onde também o docente consegue maior participação por parte dos mesmos. Assim, valorizando a realidade cultural dos alunos é possível afirmar que existe um melhor rendimento no processo de ensino e aprendizagem da matemática na educação básica.
Metodologia ativa em aulas práticas de anatomia humana: A conjunta elaboração de roteiros
Authors: Strini Polyanne Junqueira Silva Andresen , Strini Paulinne Junqueira Silva Andresen , Bernardino Júnior Roberto
Published: April 2020

A Anatomia Humana estuda o corpo por diferentes métodos, incluindo as metodologias ativas. Este estudo objetivou relatar uma das metodologias utilizadas durante um Curso de Especialização latu sensu. Vinte alunos do citado curso foram divididos em quatro grupos para elaboração de um roteiro contendo nomes de estruturas ósseas, musculares e articulares da região de cabeça e pescoço. Em seguida, os roteiros foram repassados ao próximo grupo para registro fotográfico das estruturas anatômicas listadas. O mesmo roteiro foi então entregue para outros grupos para a identificação das estruturas nas imagens fotográficas e na sequência para a correção. Finalizou-se com a conferência e análise do grupo original que elaborou a lista de estruturas. Pode-se notar diferenças entre os grupos quanto à quantidade de estruturas selecionadas, gerando roteiros sucintos ou extensos. Conclui-se que tal método foi eficaz para complementação do estudo teórico e prático dos conteúdos e exige participação intensa dos alunos.
Conteúdo de Matemática no Exame de Admissão: memórias de professoras aposentadas
Authors: Santiago Zélia Maria de Arruda , Figueirêdo Maria de Fátima Caldas de
Published: April 2020

Este artigo discute o conteúdo da Matemática em vigor no Exame de Admissão ao Ginásio, adotado no sistema escolar brasileiro nas décadas 40-70  do século XX, tendo-se como referencial de análise narrativas de professoras pedagogas aposentadas e o livro de admissão por elas utilizado. As narrativas revelam experiências da formação continuada condicionada a sua aprovação, nelas, verificando-se conteúdos matemáticos adotados ou não no manual de admissão analisado. Esta discussão funda-se na abordagem qualitativa ao interpretar fontes bibliográficas, documentais e orais. Ao estabelecer uma relação entre as narrativas das professoras e as propostas do conteúdo matemático contidos no manual do Exame de Admissão, constatam-se conteúdos distantes da sua formação escolar e prática docente. Verifica-se que as professoras enfrentaram situações pedagógicas desafiadoras à formação docente, pois deveriam aprender conteúdos não vivenciados na formação escolar e atuação docente.
Optimizing The Utilization of FIlter Pressmud to Increase Plant Nutrient Uptake in The Production of Granule Compound Fertilizers
Authors: Kasmadi Kasmadi , Nugroho Budi , Sutandi Atang , Anwar Syaiful
Published: April 2020

Filter pressmud is the waste most considered to pollute the environment and is a problem for sugar factories and the community.  There is also an opinion that filter pressmud is worthless waste and considered as B3 waste.  Filter pressmud is an organic material with abundant and has not been used optimally.  Filter pressmud contains nutrients that are needed by plants, so it is very good for increasing the composition of nutrients in granule compound fertilizer.  The objectives to be achieved in this study are: to examine the effect of the addition of filter pressmud on the production process of granule compound fertilizer on plant nutrient uptake.  The results obtained, the addition of filler blotong 60% -90% in the treatment using SOP can increase N uptake by 84.93-384.18 mg, P uptake of 2.65-11.62 mg, and K uptake of 25.04-  82.38 mg.  Whereas the treatment using KCl had a positive influence on the addition of filler filter pressmud by 70%, with an increase in N, P and K nutrient uptake of 45.62 mg, 3.87 mg and 4.89 mg, respectively
Pengolahan Air Sumur Bor Menggunakan Adsorben Fly-ash/ Zeolit dan Ultrafiltrasi
Authors: Nasir Subriyer , Damayanti Atikah , Nugraha Rizki , Putra Roma Dhona Indra , Prabowo Agung , Hakki Helmi
Published: April 2020

Penelitian ini bertujuan untuk memanfaatkan adsorben sebagai pengolahan awal sebelum proses ultrafiltrasi untuk pengolahan air sumur bor menjadi air layak konsumsi. Variabel proses yang diteliti adalah waktu operasi dan laju alir air umpan menuju membran ultrafiltrasi. Parameter kualitas air yang menjadi fokus adalah pH, turbidity, kadar nitrat, Fe, dan Mn serta bakteri e-coli dan coliform. Hasil yang diperoleh menunjukan bahwa kombinasi fly-ash dan ultrafiltrasi dapat meningkatkan pH air sumur bor dari 5,43 menjadi 7,0-8,1 dengan persentase penurunan turbiditi mencapai 98,80% sedangkan kombinasi zeolit dengan ultrafiltrasi dapat meningkatkan pH sampel menjadi 7,1 sampai 7,3 dengan penurunan turbiditi sebesar 99,71%.  Penggunaan adsorben sebelum membran ultrafiltrasi dapat meningkatkan kualitas air sehingga menjadi layak konsumsi.
ANALISIS KANDUNGAN GIZI DAN AKTIVITAS ANTIOKSIDAN PADA YOGHURT DENGAN PENAMBAHAN NANAS MADU (Ananas Comosus Mer.) DAN EKSTRAK KAYU MANIS (Cinnamomum Burmanni)
Authors: Kusumawati Inmas , Purwanti Rachma , Afifah Diana Nur
Published: April 2020

Latar belakang : Penelitian ini bertujuan untuk mengetahui kandungan gizi dan aktivitas antioksidan pada yoghurt dengan penambahan nanas madu dan ekstrak kayu manis. Metode : Penelitian eksperimental dengan sampel yoghurt dengan penambahan nanas madu (0%, 20%, 40% dan 60%)  dan ekstrak kayu manis (2% dan 4%). Protein dianalisis dengan metode Bradford, lemak dianalisis dengan metode soxhlet, kadar air dianalisis dengan metode oven, kadar abu dianalisis dengan metode Drying Ash, karbohidrat dianalisis dengan metode Carbohydrate by different, kandungan vitamin C dianalisis dengan spektrofotometri UV-Vis. Aktivitas antioksidan dianalisis dengan metode DPPH, sedangkan uji organoleptik dianalisis dengan uji hedonik. Hasil : Pada penelitian ini didapatkan hasil kandungan protein tertinggi sebesar 4,62 mg, kandungan lemak tertinggi sebesar 3,10 mg, kandungan kadar air tertinggi sebesar 84%, kandungan kadar abu tertinggi sebesar 4,54% ,kandungan karbohidrat tertinggi sebesar 19,51%, sedangkan kandungan vitamin C dan aktivitas antioksidan tertinggi yaitu sebesar 4,29 mg dan 62,4%. Simpulan : Berdasarkan skoring yang dilakukan peneliti dengan mempertimbangkan kandungan yang sesuai dengan SNI dan tingkat penerimaan konsumen yoghurt dengan penambahan nanas madu dan ekstrak kayu manis sebanyak 60% dan 2% (sampel N60K1) adalah yang paling direkomendasikan.
HUBUNGAN ANTARA ASUPAN PROTEIN DAN KADAR PROTEIN AIR SUSU IBU
Authors: Prastiyani Lien Meilya Muriasti , Nuryanto Nuryanto
Published: April 2020

Latar Belakang: ASI merupakan makanan terbaik bayi 0-6 bulan karena mengandung  semua  unsur  zat  gizi yang dibutuhkan bayi serta mengandung antibodi untuk melindungi bayi dari penyakit. Kandungan zat gizi ASI salah satunya dipengaruhi oleh asupan zat gizi. Protein merupakan salah satu zat gizi yang berperan dalam pertumbuhan, pembentukan jaringan dan organ penting dan pertahanan tubuh bayi.Tujuan penelitian ini adalah untuk mengetahui hubungan antara asupan protein dengan kadar  protein  air susu ibu (ASI).Metode: Jenis penelitian ini adalah observasional dengan desain studi cross sectional. Jumlah sampel sebanyak 33 orang ibu menyusui bayi 0-6 bulan di wilayah Kecamatan Candisari dan Kecamatan Tembalang yang dipilih secara acak. Asupan protein diperoleh melalui recall 3x24 jam melalui wawancara dengan metode food recall dengan hari yang berbeda. Kadar protein ASI dianalisis dengan metode Kjeldahl. Hubungan antara asupan protein dengan kadar protein ASI diuji menggunakan uji korelasi Rank Spearman.Hasil: Rerata asupan protein ibu menyusui 58,06±10,51gram dan rerata tingkat asupan protein 49,74±9,29%.Hasil penelitian menunjukkan adanya hubungan signifikan antara asupan protein dengan kadar protein ASI dengan nilai p= 0,029 (p<0,05). Simpulan: Terdapat hubungan signifikan antara asupan protein dengan kadar protein ASI.
HUBUNGAN STATUS GIZI DAN KUALITAS TIDUR DENGAN KUALITAS HIDUP PADA LANJUT USIA
Authors: Hermawan Febriyanti , Widyastuti Nurmasari , Tsani A Fahmy Arif , Fitranti Deny Yudi
Published: April 2020

Latar Belakang : Jumlah penduduk lanjut usia mengalami peningkatan setiap tahunnya. Peningkatan kuantitas lanjut usia harus diseimbangkan dengan peningkatan kualitas hidupnya. Status gizi dan kualitas tidur menjadi masalah yang dialami oleh lansia. Penelitian ini bertujuan untuk menganalisis hubungan status gizi dan kualitas tidur dengan kualitas hidup pada lanjut usia.Metode : Penelitian ini menggunakan metode cross-sectional. Penelitian ini dilaksanakan di Kelurahan Kalisegoro Kecamatan Gunungpati Kota Semarang. Berdasarkan hasil skrining 254 lanjut usia didapatkan 44 subjek menggunakan metode simple random sampling. Data Status gizi didapatkan melalui pengukuran langsung menggunakan timbangan digital dan alat pengukur tinggi lutut. Data kualitas tidur dan kualitas hidup diperoleh melalui wawancara menggunakan form Pittsburgh Sleep Quality Index (PSQI) dan World Health Organization Quality of Life (WHOQOL-BREF). Hasil : Tidak terdapat hubungan antara status gizi dengan kualitas hidup (r = 0,251; p = 0,101) dan tidak terdapat hubungan antara kualitas tidur  dengan kualitas hidup (r = 0,027; p = 0,862).Simpulan : Tidak terdapat hubungan antara status gizi dan kualitas tidur dengan kualitas hidup pada lanjut usia.
MEDIDAS DE REDUÇÃO DE GERAÇÃO DE RESÍDUOS SÓLIDOS NA CONSTRUÇÃO CIVIL COMO ATENDIMENTO DOS REQUISITOS DE SUSTENTABILIDADE DO PBQP-H/SIAC
Authors: Haubrick Suelen Oliveira , Gonçalves José Roberto Moreira Ribeiro
Published: April 2020

O setor da construção civil é grande fonte geradora de resíduos sólidos no país. Estudos apontam que a quantidade de resíduos gerados pelas construções se intensificaram devido ao crescimento da população urbana. Resíduos sólidos não tratados e sem destinação final adequada trazem consequências negativas para o meio ambiente e população. A problemática se dá pelo fato de grande parte do setor da construção civil negligenciar as normas e leis que contemplam o tema sustentabilidade e por desconhecerem os custos deploráveis da geração de resíduos sólidos. O presente artigo tem como objetivo apresentar, através de pesquisas exploratórias, como o setor da construção civil poderá gerenciar a redução da geração de resíduos sólidos de forma que se tenha um controle e monitoramento em todo o ciclo de vida da obra.  Por fim, através do presente artigo foi possível concluir que a redução da geração de resíduos sólidos será obtida ao desenvolver um adequado plano de gerenciamento de resíduos sólidos estruturado no PBQP-H/SiAC, Programa Brasileiro da Qualidade e Produtividade do Habitat e Sistema de Avaliação da Conformidade de Empresas de Serviços e Obras da Construção Civil, que estabelece critérios para redução dos resíduos sólidos gerados. Planejar estratégias para a redução desses resíduos é um ato que beneficia a natureza no quesito sustentabilidade e também traz consequências positivas para o setor da construção civil através da redução de custos com melhoria da qualidade.
CHALLENGE BASED LEARNING (CBL) NO CURSO DE ODONTOLOGIA DA UNIVATES
Authors: Teixeira Maurício Fernando Nunes , D’Ávila Otávio Pereira , Da Rosa Daiani Clesnei , Dhein Gisele , Kuhn Bruno Velho , Lopes Júlio Cesar
Published: April 2020

INTRODUÇÃO:  O curso de Odontologia da UNIVATES foi pensado a partir das diretrizes curriculares para a Odontologia e tem como premissas o desenvolvimento de pensamento crítico, autonomia dos sujeitos e aprendizagem significativa. Está organizado em um currículo modular integrado e o uso de metodologias ativas de ensino e de aprendizagem buscam a formação de habilidades e desenvolvimento de competências previstas nas diretrizes. OBJETIVO: Refletir sobre a utilização da metodologia denominada Challenge Based Learning (CBL) em um dos módulos em uma turma do curso. METODOLOGIA: Através do desenvolvimento do tema do planejamento as turmas foram divididas em grupos e a partir da definição de um tema geral (Big Idea), de relevância mundial, que afetasse o grupo desenvolvesse os outros passos da metodologia. Os grupos foram desafiados a desenvolver soluções/propostas para a realidade local e deveriam desenvolver um produto final publicável em redes sociais.  RESULTADOS: Os temas elencados pelos grupos foram: HIV/AIDS, IMIGRAÇÃO, DISCRIMINAÇÃO e TRABALHO ESCRAVO. Os produtos alcançados foram um seminário em conjunto com o curso de Psicologia que envolveu toda a comunidade acadêmica da instituição sobre os temas HIV e Discriminação, com debatedores especialistas na temática e quatro peças gráficas digitais divulgadas em redes sociais. Gerando 50 compartilhamentos e 165 likes no Facebook. CONSIDERAÇÕES FINAIS: O CBL permite ao estudante ter protagonismo na busca de soluções e possibilita influenciar a comunidade a enfrentar e refletir essas situações. Além disso, os estudantes direcionam o curso de sua aprendizagem e envolvem os professores de forma solidária no papel necessário de guias.
Towards restoring proper chromosome segregation and preventing ageing
Authors: Tovini Laura , McClelland Sarah E
Published: April 2020

The natural progressive dysfunction of most living organisms—ageing—has captured the attention of several studies, with the intention to develop rejuvenation strategies. Evidence is emerging of a positive correlation between natural ageing and chromosomal instability (CIN). In this issue of EMBO Reports, Barroso‐Vilares et al [1] now show a link between ageing and the erroneous assembly of the apparatus required for a proper cellular division. They compare this mechanism in young and naturally aged human cells and describe a strategy to delay age‐related CIN.