bluuebunny/crossref_metadata_2025 huggingface dataset:
Aplikasi Model Cox Proportional Hazard pada Pasien Stroke RSD Balung Kabupaten Jember
Authors: Qomaria Tutik , Fatekurohman Mohamad , Anggraeni Dian
Published: December 2019

According to the World Health Organization (WHO) cardiovascular disease is a disease caused by impaired heart and blood vessel function. There are many types of cardiovascular disease, but the most common and most well-known are coronary heart disease and stroke. Stroke is a syndrome characterized by symptoms and / or rapidly developing clinical signs in the form of focal and global brain functional disorders lasting more than 24 hours (unless there are surgical interventions or bringing death), which are not caused by other causes besides vascular causes. The number of stroke patients in Indonesia in 2013 based on the diagnosis of health personnel (Nakes) was 1.236.825 (7,0%), while based on the diagnosis of symptoms was 2.137.941 (12,1%). In this study the factors that can affect the survival of stroke sufferers were analyzed using the Cox proportional hazard regression model, the dependent variable was the length of time the patient was treated and the independent variables were gender, age, hypertension status, cholesterol status, Diabetes Militus (DM) status, stroke type, and Body Mass Index (BMI). The result showed that age, DM status, and type of stroke were the most influential factors on the survival of stroke patients at Balung Regional Hospital.
Keywords : stroke disease, survival analysis, Cox proportional hazard model
Genetic Characterization of Melipona subnitida Stingless Bee in Brazilian Northeast
Authors: Barbosa Marcela De Matos , Bonatti Vanessa , Galaschi Teixeira Juliana S. , Correia Rêgo Márcia Maria , Francoy Tiago Maurício
Published: December 2019

The study of M. subnitida, stingless bee well adapted to extreme environmental conditions, is noteworthy once the Northeastern Brazil faces climate changing predictions in which the precipitation rates are expected to decrease, and the average of temperatures to increase. The well-studied populations are limited to the Caatinga biome, where the species was considered endemic. However, the occurrence of this species has been reported in contrasting environments from arid region, such as mangrove and sandbanks in Maranhão state. Our primary goal was to characterize samples from these different environments and compare them with previously studied populations. We identified a unique mitochondrial haplotype per region. The haplotype found in Lençóis Maranhenses National Park was exclusive from this location and differed regarding the amino acid sequence when compared to the literature presented haplotypes from Caatinga, which might be related with different evolutionary processes in the distinct environments, though further studies are needed to confirm. Melipona subnitida is highly adapted to extreme environmental conditions and can survive under long drought periods, since during water and resource scarcity, the bees reduce the colony size to a minimum number of brood and workers. Thus, the species maintains only essential tasks for the nest, being an important mechanism to save the resources stored during the bloom of rainy periods (Maia-Silva et al., 2014; 2015). Assuming the climate change predictions for Northeastern Brazil (Marengo et al., 2011) in the semi-arid region, where average reductions in precipitation rates of up to 40–50% are expected (PBMC, 2013), the study bees resistant to these conditions, such as M. subnitida, is noteworthy. Considering the importance of this species regarding resistance to extreme climatic conditions, distributional modeling
Social wasps as biological control agents against Diaphania hyalinata (Linnaeus, 1767) (Lepidoptera, Crambidae), a cucumber pest in Amazonas, Brazil
Authors: Lourido Gilcélia Melo , Lopes Thiago Mahlmann V. , Somavilla Alexandre , Guerra Karla Francini G.
Published: December 2019

Diaphania hyalinata (Lepidoptera: Crambidae), popularly known as “melonworm moth”, is considered a main pest of the cucumber, and depending on the intensity of infestation, the damage can reach 100%. Herein, we report the predation of D. hyalinata larvae by seven social wasp species: Brachygastra lecheguana, Polybia dimidiata, Polybia ignobilis, Polybia liliacea, Protopolybia minutissima, Synoeca surinama and Synoeca virginea, and predation of D. hyalinata pupae by Polybia liliacea. We suggest that Polybia liliacea, should be considered as a potential biological control for cucumbers, due to its high index of captured prey and intense foraging activity.
Impacts of Fire in Social Wasps Community in an Area of Regenerating Brazilian Savanna
Authors: Clemente Mateus Aparecido , Ceridório Harquimedes Ferreira , Mendes Douglas Rodrigo Santos , Guevara Roger , Silveira Orlando Tobias , Giannotti Edilberto , Moleiro Hugo Ribeiro , Vieira Karine Munck
Published: December 2019

Fire is one of the most common natural harassments and it is characterized as an important component of the systems, although little studied regarding the influence of this event in social wasps communities. One month after the end of the collections, the area of Regenerating Brazilian Savanna of the present study undertook a fire in exactly half of the points sampled, which motivated one further year of sampling. The aim of this study was to compare the social wasps fauna collected before and after the fire, indicating a possible impact on their populations. In the first year of collection, before the fire, 21 species (seven genera) were sampled with a total amount of 297 individuals. In the second year, after the fire, 14 species were collected (reduction of 33,33% in richness) and six genera, with an abundance of 153 wasp individuals of Vespidae (loss of 48,48% of individuals). The area 1 in the first year, presented an abundance of 182 individuals (61,27%) and 16 species (76,19%) and the area 2, 115 (38,73%) and 19 species (90,47%). For the area 1 in the second year, 74 individuals (48,36%) and 12 species (85,71%) were captured and for the area 2 there were 79 individuals (51,64%) distributed among nine species (64,28%). However, we did not find significant values for both the abundance and for the richness among the areas and the years of sampling. Nine species were not registered in the second year, although two presented their registration only after the fire.
Invasive Ants Affect Spatial Distribution Pattern and Diversity of Arboreal Ant Communities in Fruit Plantations, in Tarakan Island, Borneo
Authors: Rahim Abdul , Ohkawara Kyohsuke
Published: December 2019

Human activities influence ant community structure. In tropical areas, the habitat characteristics of crop plantations frequently shape the structure of arboreal ant communities. The present study investigated the spatial distribution of arboreal ants dwelling in durian Durio zibethinus and citrus Citrus amblycarpa plantations in the Tarakan Island, North Kalimantan. Specifically, it was investigated whether ant communities are dominated by native or invasive species; and if ant arboreal mosaics occur. This study included two sites (A and C) comprising durian and citrus plantations and one site B with only citrus plantations. Ant workers dwelling on crop trees were collected by branch beating, and subsequently identified and counted. Across all sites, a total of 64,360 workers, from 22 ant species, were collected from 59 durian and 63 citrus trees. In site A, the invasive species Tapinoma melanocephalum and the native species Oecophylla smaragdina were numerically dominant. A null model analysis of species co-occurrence revealed that species segregation existed in this site. Conversely, in sites B and C the invasive species T. melanocephalum and Technomyrmex albipes were dominant, and native arboreal ants almost co-occurred with the two species. Moreover, the number of T. melanocephalum and T. albipes workers was negatively correlated with the species diversity index of arboreal ants. However, the number of O. smaragdina workers showed no significant correlation. The results suggest that the invasion and domination of non-native species dissasemble spatial structures and reduce the species diversity in arboreal ant communities. The community structures of arboreal ants in fruit plantations were varied, depending on the fruit species and the properties of dominant ants.
Myrmecophily and Myrmecophagy of Attacobius lavape (Araneae: Corinnidae) on Solenopsis saevissima (Hymenoptera: Myrmicinae)
Authors: Mendonça Cindy Anne Ferreira , Pesquero Marcos Antônio , Carvalho Rosalinda Dos Santos Damasceno , Arruda Filipe Viegas de
Published: December 2019

Attacobius lavape, a small spider from the Corinnidae family, has been recently described living inside a fire ant colony of Solenopsis saevissima species in the municipality of Morrinhos, south region of the Goiás State, Brazil. Yet several aspects of this spider relationship with the host ant remain unknown. In this way, we performed an extension study to determine its local (Morrinhos) and regional (latitudinal transect) occurrence. We also investigated if the spider uses the host ant as a feeding source. For this, we established arenas with a known number of young and adult ant individuals plus one spider and observed the feeding rate for some determined time. Regarding local distribution, differently from most socially parasitic myrmecophiles, A. lavape showed high local infestation, being found in 47% of the colonies in the sites where the spider occurred, and high transmission, being found in 42% of the 12 collection sites. Regionally, among the 11 study sites, this species only occurred in the municipality of Morrinhos, but its distribution still needs to be verified in the north region. Attacobius lavape consumed eggs, larvae and pupae, confirming that the myrmecophily was explained by myrmecophagy. The spiders consumed eggs (not estimated), 4.45 ± 2.14 larvae and/or 3 ± 0.87 pupae per day. Considering that the mean abundance was approximately seven spiders per colony (extent 1-23), we foresee an impact of 35 larvae and/or 21 pupae consumed per day in each hosting colony. The possibility of consuming sexual eggs, larvae and pupae classifies A. lavape as a potential agent of biological control of S. saevissima.
First Record of Myrcia magna D.Legrand (Myrtaceae) as a Myrmecophyte Host for Myrcidris epicharis Ward, 1990 (Formicidae: Pseudomyrmecinae)
Authors: Gaem Paulo Henrique , Farroñay Francisco , Santos Talitha Ferreira , Cabello Nicolli Bruna , Mazine Fiorella Fernanda , Vicentini Alberto
Published: December 2019

The association of the ant Myrcidris epicharis with the plant Myrcia magna is reported for the first time. This association was registered in two localities along the Negro river basin, in the region of Manaus, Amazonas state, Brazil. The ants inhabit swollen shoots in apical and subjacent nodes of the branches. This record represents the second plant species of Myrtaceae to be associated with Myrcidris epicharis.
A New Species of the Swarming Social Wasp Chartergellus Bequaert, 1938 (Vespidae: Polistinae: Epiponini) from Acre, Brazil
Authors: Somavilla Alexandre , Andena Sérgio Ricardo
Published: December 2019

A new species of Chartergellus­, collected in Acre, Northern Region of Brazil, is described and comparative remarks are given.
A Short Note on an Artisanal Incubator for Fermentation of Apis mellifera Artificial Diets
Authors: Lisboa Paiva Juliana , Gama Carolina , Drago Paula , Barbieri Jr Celso , Manfrini Morais Michelle
Published: December 2019

Considering the importance of offering food supplementation to the swarms during dearth periods, we developed in this project an artisanal incubator for fermentation of supplementary protein diets for Apis mellifera bees, obtaining a fresh, nutritious and palatable product, made on the property, thus facilitating access to the beekeeper to this resource.
High-quality sapphire microprocessing by dual-beam laser induced plasma assisted ablation
Authors: Li Yang , Liu Huagang , Hong Minghui
Published: December 2019

Sapphire is a kind of ultrahard transparent material with good chemical resistance. These great properties also make sapphire functional device fabrication a big challenge. We propose a novel dual-beam laser induced plasma assisted ablation (LIPAA) for high-quality sapphire microprocessing. One laser beam is focused on a sacrificial target for nano-particle generation by LIPAA to assist the sapphire ablation by the other laser beam. The new technology can reduce the ablation threshold of sapphire and the roughness of the fabricated structures. The laser fluence for particle generation is optimized. Furthermore, we demonstrate a sapphire Dammann grating and an OAM generator fabricated by this method. This method can be expanded to arbitrary transparent material precision machining for various applications.
Three-dimensional chirped Airy Complex-variable-function Gaussian vortex wave packets in a strongly nonlocal nonlinear medium
Authors: Peng Xi , He Yingji , Deng Dongmei
Published: December 2019

Three-dimensional chirped Airy Complex-variable-function Gaussian vortex (CACGV) wave packets in a strongly nonlocal nonlinear medium (SNNM) are studied. By varying the distribution parameter, CACGV wave packets can rotate stably in a SNNM in different forms, including dipoles, elliptic vortices, and doughnuts. Numerical simulation results for the CACGV wave packets agree well with theoretical analysis results under zero perturbation. The Poynting vector related to the physics of the rotation phenomenon and the angular momentum as a torque corresponding to the force are also presented. Finally, the radiation forces of CACGV wave packets acting on a nanoparticle in a SNNM are discussed.
Adjustable slab-aberration compensator for high power slab laser
Authors: Shao Chongfeng , Guo Yading , Chen Zhongzheng , Bo Yong , Li Yang , Zhang Lin , Yuan Lei , Xu Yuanzhai , Meng Shuai , Peng Qinjun , Xu Zuyan
Published: December 2019

An adjustable slab-aberration compensator (ASAC) with the ability to compensate the large magnitude inherent wavefront aberrations in the slab width direction is proposed and experimentally demonstrated. The ASAC has a size of 130mm×45mm (effective aperture of 75mm×28mm) and 11 actuators along the length with a contact spacing of 8 mm. The design is optimized by simulations in terms of the mirror’s coupling coefficient with the contact areas, mechanical properties of the driving units, and the mirror thickness. The initial surface figure of the ASAC has PV and RMS values of 55 nm and 10 nm, and the dynamic range is 30 µm. In our experiments, a 20 kW Nd: YAG quasi-continuous wave (QCW) slab laser is further compensated by the ASAC system. The beam quality increases from 15× to 3.5× diffraction limit at 20 kW output after correction. Besides, the proposed ASAC can maintain the surface shape after power shutdown and have good thermal stability. The temperature rise of the ASAC is less than 7 °C in the 20 kW laser correction experiment.
Investigation of the effect of a male singing model on kindergarten children’s use of singing voice achievement
Authors: Rutkowski Joanne
Published: December 2019

Replicable singing models are important as children learn to use their singing voices. Previous research indicates that for elementary school-aged children a child model is most effective, then a female model, then a male falsetto model, then a male baritone model. In my work with preschool children in a more informal setting, I noticed that many of these children did not seem to have difficulties singing along with male undergraduate students. In a recent study I conducted, significant differences in male and female models were found, favouring the female model. However, gains in singing were not noted until the second half of the year and the male teacher was only part of instruction for the first half of the year. Therefore, the purpose of this study was to investigate the effect of a male singing model over an entire academic year of instruction on kindergarten children’s singing voice achievement. Kindergarten children (N=15, n=10) received informal music guidance once a week for 30–40 minutes from October to May from a team of two music teachers, one female and one male. The teachers sang together during activities, but sometimes the female teacher would take the lead; other times the male teacher. The Singing Voice Development Measure (SVDM) was administered four times during the instructional period. For each test time, the female teacher administered the test with her voice as the singing model; on a different day the male teacher administered the test with his baritone voice as the singing model. Two raters evaluated the randomized recordings of the children’s singing; reliabilities were acceptable. A three-way repeated-measures ANOVA revealed a significant interaction by time and model. The children’s scores, while quite high on the pretest, showed an increase over time for both models except for the final performances when singing with text with the female model; one of these performances appears to be an outlier.
‘When I sing I use all my tools’: Singing to infants as an expression of creativity in mothers
Authors: Brisola Elizabeth B. V. , Cury Vera Engler , Davidson Larry
Published: December 2019

When considering singing as an everyday creative activity in which people engage, investigations of children singing are more easily found than those of adults singing. Mothers commonly sing to their infants as part of caregiving, for the most part in the intimacy of their homes, perhaps making their creativity less visible to researchers. The purpose of this article is to address mothers’ creative expression in singing to their infants and its implications on their psychological health. In order to do so, we first summarize knowledge derived from existing research literature pertaining to mothers’ creativity in singing to their infants. A review of eleven selected texts revealed the following themes: mothers discovering their creativity, being spontaneous, being present, expressing themselves, adapting song material, using their own life experiences, and having fun. Although mothers do not necessarily consider themselves to be creative singers, they often invent lyrics and create melodies, add new verses to songs according to their particular child, and adapt the lyrics to each situation. They make use of their life experiences as they express their thoughts, feelings and perceptions through song. As they sing to their infant, they live in the present moment and instil meaning to their relationship in fun-filled interactions. We then discuss this musical creative expression in terms of mothers’ psychological health. We propose that this musical activity contributes to mothers’ health during the complex and transforming experience of motherhood, bringing satisfaction, relief and fulfilment, contributing to their personal growth as they move towards self-actualization, as described by humanistic psychology.
Design of Experimental Approach to Analytical Robustness Study for UHPLC Method Developed
for Separation and Quantification of Spironolactone and its Impurities in Drug Substances
Authors: Veerendra Y.V.S. , Brahman Pradeep Kumar , Mankumare Sharad D. , CH Jaya Raju , Satish J.
Published: December 2019

The present work demonstrates the development of an optimal, robust, validated UHPLC method for
quantification of related impurities and assay determination of spironolactone. Design of experiment
procedure, in combination with statistical evaluation of the data was used to test the robustness of
developed method. A stability indicating method was established by forced degradation experiments.
Analytical robustness was determined using design of experiment approach. The chromatographic
separation was achieved with Agilent SB-C18 RRHD column using gradient elution with mobile
phase-A consists of a mixture of 0.1 % each formic acid and ammonia in water and methanol as
mobile phase-B respectively. The developed method is exhaustively validated for parameters like
precision, accuracy, linearity, LOD, LOQ, ruggedness and robustness. The stability tests were also
performed on drug substances as per ICH norms. Base line separation was achieved for all impurities,
degradation products and the API. All impurities were eluted within 12 min, there was a remarkable
3.5-fold decrease in runtime and a clear baseline separation between all peaks in comparison with
Ph.Eur monograph. A multi-dimensional design space was built to study the robustness of developed
method using design expert software. Significant parameters such as effect of flow rate, buffer strength
and mobile phase compositions were optimized at three levels. Plackett-Burman design was applied
for screening of chromatographic conditions and factorial design was applied for optimization of
essential factors in robustness studies.
Removal of Uranium(VI) from Aqueous Solution by Iron Nanoparticles Synthesized from Testa Extract of Annacardium occidentale: A Fluorimetric Study
Authors: Chandra Ch , Khan Fahmida , Agrawal Sonalika , Soni Vipin Kumar
Published: December 2019

Uranium(VI) is one of the most harmful and carcinogenic ion if present in water above its permissible limit. The main objective of this study is removal of uranium(VI) from water sample using nano zerovalent iron prepared by green synthesis approach with the help of Annacardium occidentale testa extract in which the whole process is completely environmental friendly and cost effective and does not involve any hazardous chemicals. Size of AO-Fe nanoparticle is characterized through UV-visible
spectroscopy and FTIR analysis. Morphology of nanoparticle is studied using SEM-EDS and XRD analysis. The adsorption capacity of AO-Fe nanoparticle is studied using batch experiments. Effect of different parameters are then analyzed such as pH, adsorbent dosage, contact time and U(VI) ion concentration. Adsorption isotherm is also studied using Langmuir and Freundlich adsorption isotherm where correlation constant R2 is about 0.99.
Colorimetric Detection of Iron(III) Ion Based on 4-Aminothiophenol and Schiff Base Naphthalene-2-ol Modified Silver Nanoparticles
Authors: Samerjai Wachirawit , Jittangprasert Piyada , Tongraung Pan
Published: December 2019

A facile, highly selective colorimetric sensor based on 4-aminothiophenol (4-ATP) and Schiff base naphthalene-2-ol (L) modified silver nanoparticles (4-ATP-L-AgNPs) for detection of Fe(III) ion in aqueous solution. The presence of Fe(III) ion induced the aggregation of AgNPs that caused the red-shift from 430 to 440 nm, through a cooperative metal-ligand interaction from the coordination bond between Fe(III) ion and functional groups on AgNPs surface resulting in a colour change from dark brown to
dark yellow with increasing absorption at 365 nm. The absorbance at 365 nm is linear with the concentration of Fe(III) ion ranging from 9.0 × 10-6 M to 9.0 × 10-3 M with a correlation coefficient of 0.9991. The detection limit of the developed method was 7.9 × 10-6 M. The practical application of 4-ATP-L-AgNPs for selective sensor for Fe(III) ion in various drinking water samples were demonstrated.
Magnetic, Thermal and Electrical Transport Properties of o-Substituted Polyanilines Encapsulated with Fe2O3 Nanoparticles
Authors: Suganthi R. , Padmaja S. , Mary S. Jhancy
Published: December 2019

Poly(2-nitroaniline), poly(2-nitroaniline)-Fe2O3 and poly(2-methylaniline)-Fe2O3 nanocomposites synthesized by in situ chemical oxidative polymerization technique were characterized by XRD, thermal (TGA and DTA) and FTIR & UV-visible spectroscopic techniques. The thermal stability was confirmed by the integral procedural decomposition temperature (IPDT) and oxidation index (OI) calculations. The electrical conductivity and dielectric properties were also investigated. At low frequency region,
the dielectric constant decreases with increase in frequency due to electrical relaxation process. At high frequencies, dielectric constant is independent of frequency. At low frequency, there was strong frequency dispersion of permittivity and above 3 Hz, a frequency independent behaviour in permittivity was observed. The materials exhibit ferromagnetic behaviour.
Adsorptive Removal of Anionic Azo Dye Acid Black 194 from
Aqueous Solution using NNMBA-Crosslinked Poly N-Vinyl Pyrrolidone Hydrogel
Authors: Jose Rino Laly , Gigimol M.G. , Mathew Beena
Published: December 2019

N,N-Methylene bis-acrylamide crosslinked poly-N-vinyl pyrrolidone hydrogels were synthesized and binding of the hydrogel with the dye solution was followed spectrophotometrically. The chemical structure and morphology of the hydrogel before and after adsorption of acid black 194 was confirmed by FT-IR and SEM. Effect of various physico-chemical parameters such as concentration, temperature, pH, time and the amount of hydrogel used were investigated by batch adsorption studies. Hydrogel used as adsorbent in this study was characterized by UV-Vis spectrophotometer before and after adsorption of acid black 194. Kinetic studies suggested pseudo second order reaction. Langmuir and Freundlich isotherms were applied on equilibrium adsorption data and found that Freundlich isotherm fit better for the present investigation. N,N-methylene bisacrylamide crosslinked poly-N-vinyl
pyrrolidone hydrogel displayed excellent properties for the removal of the azo dye, acid black 194 from aqueous solution.
Synthesis and Antimicrobial Activity of Some Novel 1,4-Dihydropyridine Trimer Derivatives
Authors: Ashokkumar D. , Gopalakrishnan M. , Ramalingam G.
Published: December 2019

An efficient multi-component one pot synthesis of some novel bioactive 1,4-dihydropyridine derivatives from melamine using various aldehydes and 1,3-dicarbonyl compounds are reported. This reaction carried out microwave irradiation under solvent free condition using low cost and efficient acetic acid catalyst. The excellent futures of this method are eco-friendly, short reaction time and mild reaction
condition. This method is convincing route for highly substituted dihydropyridine trimer synthesis. The synthesized dihydropyridine derivatives are screened for antimicrobial properties.
Kinetics of Micellar Effect of Non-Ionic Surfactant on Oxidative Degradation of Ciprofloxacin
Authors: Singh Ajaya Kumar , Shrivastava Alpa , Shrivastava Dilip R. , Patel Rajmani , Sachdev Neerja
Published: December 2019

Oxidative degradation kinetics of leading fluoroquinolone family drug ciprofloxacin (CIP) by chloramine-T (CAT) in TX-100 micelle media was studied spectrophotometrically at 275 nm and 298 K. In pseudo-first-order conditions the rate constant (kobs) decreased regularly with increasing [TX-100]. To understand the self-organizing activities of TX-100, CMC values in varying reaction conditions had been evaluated. The role of non-ionic surfactant in the oxidative degradation process of ciprofloxacin by chlorinating agent chloramine-T is explained in terms of mathematical model explained by Menger-Portnoy. The reaction showed first to zero order dependence on [CAT] and fractional order on [CIP]. Increasing [H+] decreased the rate of reaction. The effect of ionic strength and solvent polarity of the medium in reaction conditions were studied. The effects of added salts [HSO4Na], [KCl], [KNO3] and [K2SO4] had also been studied. The stoichiometry of the reaction determined was 1:2 and the oxidation products were identified by LC-EI-MS. The analysis of degradation product of ciprofloxacin evidently reveals that the piperazine moiety is active site for oxidation in the reaction. Activation
parameters were studied to propose appropriate mechanism for the reaction.
Ultrasonic and Optical Studies of Binary Mixtures of Ethanol with
Diisopropyl Ether, Cyclohexane or n-Alkanes (C6-C9) from 298.15 to 318.15 K
Authors: Kashyap Pinki , Rani Manju , Tiwari D.P.
Published: December 2019

Ultrasonic speeds (u) and refractive indices (n) of the binary liquid mixtures of ethanol with diisopropyl ether (DIPE) or cyclohexane or n-alkane (C6-C9) were experimentally measured from 298.15 to 318.15 K over entire composition range. Using these measurements deviation in ultrasonic speed (Δu), deviation in refractive index (Δn), excess intermolecular free length (Lf E ) and excess isentropic compressibility
(Ks E ) were calculated and fitted with Redlich-Kister equation. The Δu values are negative for all binary mixture and magnitude of negative deviation for binary mixture of ethanol and n-alkane decreases as chain length increases. At equimolar composition, Ks E follows the order: n-hexane > n-heptane >n-otcane > n-nonane > diisopropyl ether > cyclohexane. Experimental results were analyzed to understand the various molecular interactions present in the binary mixtures. The u values for all binary liquid solutions were also correlated using different empirical correlations such as Nomoto, impedence dependence relation and van Dael ideal mixing relation. The u for binary liquid mixtures
were also computed theoretically using Schaaff′s collision factor theory. Free length theory was used to compute inter-molecular free length (Lf E ). Various correlations e.g., Arago-Biot (A-B), Gladstone-Dale (G-D), Heller (H), Lorentz-Lorentz (L-L), Eyring-John (E-J), Newton (Nw) and Weiner (W) were used for calculating refractive indices of selected systems theoretically.
Pyridine Alkaloid Derivatives of Dithiophosphoric Acids and Their Antimicrobial Evaluation
Authors: Nizamov Ilyas S. , Timushev Ildus D. , Salikhov Ramazan Z. , Nizamov Ilnar D. , Nikitin Yevgeniy N. , Shulaeva Marina P. , Pozdeev Oscar K. , Voznesenskaya Tatyana Yu. , Batyeva Elvira S. , Cherkasov Rafael A.
Published: December 2019

A new series of (S)-(–)-nicotinium salts of cyclic dithiophosphoric acids were synthesized by the reactions of 5,5-dimethyl-2-mercapto-2-thiono-1,3,2-dioxaphosphorinane and 4-methyl-2-mercapto-2-thiono-1,3,2-dioxaphosphorinane with (S)-(–)-nicotine. Picolinic and nicotinic acids and potassium pyridine-3-carboxylate reacted with O,O-diterpenyl dithiophosphoric acids on
the basis of (1R)-endo-(+)-fenchyl alcohol and (S)-(–)-menthol to afford the corresponding 2-carboxypyridinium, 3-carboxypyridinium and potassium pyridinium-3-carboxylate dithiophosphates. The antibacterial and antifungal activity of (S)-(–)-nicotinium 4-methyl-2-mercapto-2-thiono-1,3,2- dioxaphosphorinane and salts of O,O-diterpenyl dithiophosphoric acids on the basis of nicotine and nicotinamide were evaluated.
Microwave Assisted Synthesis of Titanium(IV) Doped Hydroxyapatite and its Antibacterial Activities
Authors: Jenifer A. , Sakthivel P. , Senthilarasan K. , Arumugam S. , Sivaprakash P.
Published: December 2019

A rapid, efficient and cost-effective method for the synthesis of titanium(IV) doped hydroxyapatite using microwave assisted wet chemical method is reported. The synthesized hydroxyapatite and titanium(IV) doped hydroxyapatite (THA) samples were characterized by using XRD, FTIR and HR-TEM with EDAX. The antibacterial activity against Staphylococcus aureus and Escherichia coli was investigated by using the disc diffusion method showed good results. The anti-inflammatory activity by using the protein denaturation method proves to be less inflammable for in vivo applications.
The hemolytic test showed that the samples are less hemolytic.
Impact of 2-Aminonicotinic Acid and/or β-Cyclodextrin on the
Morphology of Metal Carbonates (M = Ca2+ and Sr2+) Crystallization
Authors: Sreeram V. , Basaveswara Rao M.V. , Rao Koya Prabhakara
Published: December 2019

We examined the crystallization impact of the surfactant, 2-aminonicotinic acid and/or β-cyclodextrin on the formation of two anhydrous metal carbonates, MCO3 (M = Ca2+ and Sr2+), from their respective calcium chloride and strontium chloride salts along with NaHCO3 at room temperature. By varying the concentrations of this hybrid surfactant to the concentrations of MCO3 during the preparations and examined their particle sizes by PXRD, FTIR, TGA and SEM. The characterization on these newly
formed anhydrous metal carbonates clearly indicated that CaCO3 formed with three different shapes such as truncated calcite, hexagonal calcite and rod shaped aragonite. Whereas, SrCO3 formed with two different shapes such as hexagonal poles and bloom scale bars by varying concentrations of the surfactants. The mixed surfactant certainly made an impact on the metal carbonates formations with different shapes and sizes by varying surfactants concentrations and conditions.
Microwave Assisted Green Synthesis of Silver Nanoparticles using Pomegranate
Peel Extract: Characterization and Antibacterial Activity Studies
Authors: Yaku Gugulothu , Rajkumar Bandi , Prasad Rao T.V.D.
Published: December 2019

In the present work, a simple and low cost and eco-friendly technique is applied for the microwave assisted synthesis of silver nanoparticles (AgNPs) using the extract of pomegranate peel wastes, which does not require any use of external stabilizing agent. The extract of pomegranates peelings waste served as a reducing as well as capping/stabilizing agent. The synthesized silver nanoparticles were characterized by using powder X-ray diffraction (XRD), transmission eelectron microscopy (TEM), FT-IR, UV-visible spectroscopy and scanning electron microscopy-energy dispersive X-ray analysis (SEM-EDX). The stability of AgNPs was analyzed by zeta potential measurements. The antibacterial activity of synthesized AgNPs was also evaluated on six Gram-positive and Gram-negative bacteria using agar well diffusion method.
Transtorno Mental em Profissionais de Enfermagem no Setor de Urgência e Emergência: Revisão Sistemática da Literatura / Mental Disorder in Nursing Professionals at the Emergency Room: Systematic Literature Review
Authors: Nonnenmacher Lucielle Lirio , Loiola Aline Marrafão Seleguim , Silva Fernanda Da , Melo Flavia Alves de Oliveira , Freitas Rafael Carvalho , Almeida Malu Suzane De
Published: December 2019

O desenvolvimento do trabalho do enfermeiro no setor de urgência e emergência pode levar a exigências cotidianas que geram transtornos mentais, além de sofrimento psíquico e somático. O presente artigo tem como objetivo apresentar uma revisão sistemática de literatura de produções científicas dos anos de 2008 a 2016, referente à prevalência de transtornos mentais em profissionais de enfermagem no setor de urgência e emergência. Foram utilizados marcadores (como: Estresse Psicológico, Esgotamento Profissional, Transtorno Mental, Enfermeiro, Urgência, Emergência, Estressores e Riscos Profissionais) com apresentação dos resultados pelo método descritivo, por intermédio de quadros, sendo, portanto, um estudo do tipo secundário, cujos resultados são apresentados de forma sintética. Ao identificar esses fatores, é possível encontrar maneiras de intervir a fim de diminuir esse tipo de exposição. Findando a pesquisa, os resultados apontam para uma grande prevalência de Transtornos Mentais Comuns no âmbito da saúde, com índices maiores na área da enfermagem..
Análise sobre Accountability, Participação social e Transparência Pública no Estado de Alagoas: Um estudo de Caso / Analysis on Accountability, Social Participation and Public Transparency in the State of Alagoas: A Case Study
Authors: Mota Paulo Rocha , Valente Maria José Andrade Pais
Published: December 2019

Uma abordagem extremamente emergente na Gestão Pública é a ação e atuação da Accountability, que como descrito trata-se de um conceito novo e que tem desempenhado função de levar até a sociedade informações sobre o orçamento (arrecadação, utilização e alocação dos recursos públicos), abrindo canais de contato com a mesma para que eventuais discordâncias e inquietações sejam protocoladas e, neste sentido, atendidas pelos órgãos de comunicação e competência. O presente estudo objetivou uma Análise sobre Accountability, Participação social e Transparência Pública no Estado de Alagoas. Trata-se de um estudo de caso, descritivo, em instituição, selecionada pela sua especificidade, quanto a transparência das informações sobre as contas públicas, e baseado em algumas fontes de informação eletrônica. Os resultados demonstraram que, embora os sites pesquisados estejam em conformidade com a Lei de Acesso à Informação e Lei da Transparência, ainda há bastante espaço para a participação social no processo de elaboração e discussão do planejamento do Orçamento Público. Palavras-chave: Accountability, Contas públicas, Portal da Transparência.
Diversidade de Gênero no Mercado de Trabalho / Gender Diversity in the Labor Market
Authors: Dantas João Victor Diógenes , Gomes Filho Antoniel Dos Santos
Published: December 2019

A temática da diversidade tornou-se constantemente debatida, principalmente em um país como o Brasil, que é conhecido por sua riqueza cultural. Assim, os processos de gestão da diversidade por meio da organização das pessoas no âmbito organizacional busca meios para integração e inclusão social, inclusive no que tange as questões do gênero. A busca pela igualdade e o combate das desigualdades de gênero e orientação sexual é parte da história do Brasil. O presente estudo objetiva apresentar a partir de uma pesquisa bibliográfica os principais desafios enfrentados pelas pessoas LGBTs no mercado de trabalho. Metodologicamente a pesquisa possui uma abordagem qualitativa, sendo classificada como exploratória e de tipo bibliográfica, onde foram utilizados livros e artigos que tratassem do tema diversidade nas organizações. Pode-se considerar que as recentes tendências empresariais da globalização e o aumento da diversidade étnica e de gênero estão voltando a atenção dos gerentes para a gestão das diferenças culturais. A literatura de gestão sugeriu que as organizações deveriam valorizar a diversidade para aumentar a eficácia organizacional.
A Utilização do Marketing Digital Contábil nos Escritórios da Região Centro-Sul do Estado do Ceará / The Use of Digital Accounting Marketing in the Offices of the Center-South Region of Ceará State
Authors: Angelim Filho José Nilton Moreira , Gomes Filho Antoniel Dos Santos
Published: December 2019

Resumo: O marketing digital contábil é uma tendência que vem ganhando mais adeptos nos últimos anos, o profissional contábil está procurando seguir essa nova linhagem para o avanço da sua marca. O Instagram criado em 2010 apenas para a postagem de fotografias, hoje é um dos maiores alvos do marketing, por se tornar uma rede social praticamente completa, onde o usuário manda mensagem escrita e de voz, posta fotos e vídeos, podendo ser permanentes ou durar apenas 24 horas. Objetivo: Analisar como os escritórios de contabilidade da região Centro-Sul cearense fazem uso do marketing digital contábil. Metodologia: Foram utilizadas técnicas padronizadas para a pesquisa, tais como, o método dedutivo, com abordagem qualitativa e quantitativa, de natureza básica. Na pesquisa foram avaliados os perfis de três empresas, em busca de identificar o perfil do contador diante o marketing contábil, com ênfase em tecnologia. Resultados: foi realizada uma pesquisa por comparação básica entre três perfis do Instagram de três escritórios de contabilidade. Conclusão: Concluiu-se que o perfil com mais seguidores realiza mais postagens que os outros perfis, O intuito da pesquisa foi mostrar o quanto esse meio vem crescendo e se ramificando nos dias atuais. Palavras chaves: Instagram. Marketing digital. Profissional contábil.
O Uso da Alta Frequência na Cicatrização de Lesão por Pressão / The Use of High Frequency in Pressure Injury Healing
Authors: Costa Larissa Arruda , Guimarães Márcia Meira
Published: December 2019

A pele funciona como uma barreira de proteção contra efeitos externos e protege as estruturas internas dos efeitos físicos e biológicos, mas essas funções podem ser comprometidas se a estrutura estiver lesionada. Em meio a várias lesões que aparecem com frequência temos as lesões por pressão (LP). Que são lesões na pele e/ou tecido subjacente que ocorrem frequentemente em locais de proeminência óssea e que tenha a cicatrização muito lenta. Com a intenção de reduzir os custos dos curativos, os agentes físicos começaram a ser introduzidos na cicatrização das feridas, pois a estimulação elétrica tem sido uma boa opção no processo de cicatrização, além de proporcionar alívio no quadro álgico. Este projeto traz como objetivo geral: Avaliar o benefício do uso da alta frequência na cicatrização de lesão por pressão. Trata-se de um estudo de revisão integrativa, realizado no período de março a junho, através do levantamento nas bases de dados Scielo, BVS e Science Direct.  Para busca dos artigos utilizou-se os descritores alta frequência. Cicatrização. Lesão por pressão. Os resultados deste estudo demonstram que a alta frequência é eficaz na cicatrização de lesão por pressão, contribuindo expressivamente para que profissionais e acadêmicos da área da saúde tenham um melhor aprimoramento da técnica e possam colocar em prática, visto que é um tratamento com custo baixo, mas que traz vários benefícios para  pessoas em tratamento dessas lesões.
Desempenho do Enfermeiro na Assistência ao Paciente em Parada Cardiorrespiratória: Revisão Sistemática / Nurse Performance in Patient Care in Cardiorresiratory Parade: A Systematic Review
Authors: Pinheiro Woneska Rodrigues , Pereira Sandra Braz , Silva Raul Roriston Gomes da , Silva Maria Isabel Caetano da , Bernardo Lorena Pereira , Sombra Lima Danielly Gonçalves , Da Silva Nadja Coelho , Medeiros Kátia Monaisa Figueiredo
Published: December 2019

O objetivo deste estudo consiste em analisar o desempenho do enfermeiro na assistência ao paciente em parada cardiorrespiratória. Trata-se de uma revisão sistemática da literatura, constituída por artigos coletados nas bases de dados Biblioteca Virtual em Saúde e PubMed, em português, inglês e espanhol. Foram encontrados 269 artigos, dos quais 8 foram elegíveis. Observou-se que em 2018 houve aumento da produção de estudos sobre esta temática. As conclusões dos estudos levam a inferir que o sucesso do atendimento a pacientes em parada cardiorrespiratória e a chance de recuperação estão diretamente relacionados com a rapidez da atuação da equipe e da aplicação imediata, competente e segura das medidas de reanimação. Os estudos demonstraram que o profissional enfermeiro possui aptidão nas tomadas de decisões, na identificação e a realização dos procedimentos necessários para aumentar a sobrevida do paciente. Contudo, ainda existe alguma carência de conhecimento que interfere no desempenho do enfermeiro.
Expectativa dos ingressantes da área de contabilidade no mercado de trabalho: um estudo na Universidade Estadual do Norte do Paraná / Expectation of accounting newcomers in the labor market: A study at the State University of Northern Paraná
Authors: Marcelino José Antonio , Ribeiro Lucimara Marciano , Sanches Maria Alice
Published: December 2019

Este artigo busca realizar um panorama sobre a visão dos alunos do curso de Ciências Contábeis da Universidade Estadual do Norte do Paraná (UENP) sobre o mercado de trabalho na área contábil. A pesquisa procurou ressaltar opiniões acerca da perspectiva dos futuros profissionais de contabilidade, com o intuito de salientar a importância desses profissionais para garantir a segurança financeira das organizações, mas enfatizando a necessidade dos profissionais se atualizarem constantemente, visto que as transformações nos setores empresariais acontecem rapidamente, necessitando de um perfil dinâmico e proativo por parte dos atuantes nessa área. Os resultados demonstraram o perfil dos estudantes de Ciências Contábeis, bem como as suas perspectivas sobre a área de atuação e o mercado de trabalho.
A Inclusão do Homem no Pré-Natal / The Inclusion of Man in Prenatal
Authors: Silva Eudayris Lucas da , Santos Igor Donizete Antunes dos , Castro Nathalia Aparecida Oliveira , Furlaneto Rozane Sobrinho , Melo Flavia Alves de Oliveira , Seleguim Aline Marrafão
Published: December 2019

No período gestacional a mulher passa por inúmeras mudanças, de caráter fisiológico e emocional, cabe ao enfermeiro acompanhá-la, por ser um profissional capacitado para realizar todos os cuidados necessários em uma gravidez desde que a mesma não seja de risco para mãe e o bebê, desta forma a mãe não pode se sentir sozinha. Este artigo teve por objetivo demostrar a importância da inclusão paterna durante o pré-natal.  A Política Nacional de Atenção Integral da Saúde do Homem objetiva sensibilizar gestores(as), profissionais de saúde e a população em geral sobre os benefícios do envolvimento ativo dos homens em todas as fases da gestação e nas ações de cuidados com seus(uas) filhos(as), destacando como esta participação pode trazer saúde, bem-estar e fortalecimento de vínculos saudáveis entre crianças, homens e suas parceiras. Os profissionais de saúde devem estimular a interação dos pais durante o processo gestacional, sempre visando a realidade familiar e as diferenças culturais aonde os mesmos estão inseridos. O estímulo e a inserção do homem no pré-natal devem ser promovida de forma acolhedora e receptiva, integrando-o e fazendo com que o pai se sinta confortável a participar de todas as próximas consultas. Para a construção deste artigo de revisão literária buscou-se artigos referentes ao ano de 2005 á 2017 que trariam informações sobre o tema abordado não fugindo do mesmo assim havendo uma boa execução do trabalho.
Política y vida pública. Argentina (1930 - 1943)
Authors: Lacquaniti Leandro Gustavo
Published: December 2019

Reseña del libro de Leandro Losada  Política y vida pública. Argentina (1930 - 1943).
Reflexiones acaerca de la problemática de la cohesión social y la construcción del campo historiográfico argentino alrededor del centenario
Authors: Prado Gustavo H.
Published: December 2019

La apuesta reformista por metabolizar las asimetrías económicas y encauzar el conflicto social entre el fin de siglo XIX y la década de 1910 generó el despliegue y articulación de diversas políticas cohesivas entre las que estaba la creación de lazos identitarios capaces de generar solidaridades transversales sobre las fracturas socioeconómicas y las heterogeneidades ético-culturales existentes. El Estado realizaría una intervención decisiva e innovadora en el saber histórico para institucionalizarlo de forma que pudiera producir un conocimiento documentado, contrastado y objetivo del pasado rioplatense que contribuyera a la construcción de la nacionalidad. Esta intervención desencadenaría la constitución de la Historiografía argentina entendida como disciplina y la autonomización relativa del campo historiográfico.
El guion de exposición: texto de la actividad de estudio y dispositivo de regulación interna en los exámenes orales de estudiantes universitarios
Authors: Navarro Paula
Published: December 2019

En la Argentina el estudio de los génerosacadémico-científicos orales constituye un espaciode vacancia en la investigación lingüística y, como suconsecuencia, en la formación de los estudiantes. Eneste trabajo nos proponemos caracterizar -siguiendola metodología de análisis de la arquitectura textualdesarrollada por Bronckart (2004, 2013)- un corpusconstituido por los exámenes finales orales y los guionesde exposición de los estudiantes que accedieron a lapromoción en la asignatura de primer año Práctica de lacomunicación oral y escrita en 2017 y 2018 (Facultad

de Humanidades y Ciencias de la Universidad Nacionaldel Litoral). El análisis del corpus revela que el guionde exposición constituye no solo un pre-texto, versión oplanificación textual de la exposición oral, sino tambiénun texto de la actividad de estudio con un plan sociodiscursivoy un valor de uso propios. Su conceptualizacióncomo dispositivo de regulación interna (Schneuwlyy Bain, 1998) en la actividad metalingüística (Camposy Milian, 2000), oral en la instancia de examinaciónfinal, sustenta la potencialidad de su enseñanza parala didáctica de la «escritura».