bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessing the temporal uniformity of CIELAB hue angle
Authors: Kong Xiangzhen , Wei Minchen , Murdoch Michael J. , Vogels Ingrid , Heynderickx Ingrid
Published: January 2020

In recent work [J. Opt. Soc. Am. A 36, 1022 (2019)JOAOD60740-323210.1364/JOSAA.36.001022], we found that

Δ

E

ab

∗

/

s

in CIELAB is not suitable for describing the perceived speed of temporal color changes in full-room illumination. Two hue transitions with the same physical speed of change, in terms of

Δ

E

ab

∗

/

s

, were not perceived to change at the same speed. This is not really surprising, since CIELAB was not designed to characterize the perception of temporal color transitions in illumination. In this study, we further investigate the temporal uniformity of CIELAB. The stimuli were presented in a square of 4.3° visual angle surrounded by a 4000 K adapting field, similar to the viewing condition for which CIELAB was designed (i.e., where color stimuli are presented on-axis surrounded by a static adaptation field). The human observers viewed pairs of temporal color transitions which were presented sequentially, and were asked to select the one that appeared to change faster. The results confirmed that under these conditions CIELAB was also not temporally uniform. We present preliminary attempts to improve the temporal uniformity for both CIELAB and cone-excitation spaces (i.e., LMS and DKL (Derrington–Krauskopf–Lennie [J. Physiol. 357, 241 (1984)JPHYA70022-375110.1113/jphysiol.1984.sp015499]).
Non-contact surface grating coupling for arrays of atom–photonic devices
Authors: van Lange A. J. , Lof A. , van Oosten D.
Published: January 2020

For future atom–photonic devices, the incoupling method is expected to become the main bottleneck in the scaling of the number of devices, as current devices use side-coupling, which is restricted to the sample edges. This paper describes how light from above is coupled directly from free space into a freestanding membrane of 220 nm thin silicon nitrite (

Si
3

N
4

) with surface grating couplers. The design for these couplers is modeled, captured in an elegant design formula, and experimentally tested. A coupling efficiency of 12% makes experimental coupling to an array of atom–photonic devices possible. The elegant design formula makes grating design straightforward for all-dielectric materials and wavelengths. For this formula, determination of the correct effective index of the specific waveguide mode inside the grating layer is essential.
Localized surface plasmon enhanced Ga2O3 solar blind photodetectors
Authors: Tang Ruifan , Li Guanqi , Li Cheng , Li Jinchai , Zhang Yanfang , Huang Kai , Ye Jiandong , Li Cheng , Kang Junyong , Zhang Rong , Zheng Youdou
Published: January 2020

Enhancement in the light interaction between plasmonic nanoparticles (NPs) and semiconductors is a promising way to enhance the performance of optoelectronic devices beyond the conventional limit. In this work, we demonstrated improved performance of Ga2O3 solar-blind photodetectors (PDs) by the decoration of Rh metal nanoparticles (NPs). Integrated with Rh NPs on oxidized Ga2O3 surface, the resultant device exhibits a reduced dark current of about 10 pA, an obvious enhancement in peak responsivity of 2.76 A/W at around 255 nm, relatively fast response and recovery decay times of 1.76 ms/0.80 ms and thus a high detectivity of ∼1013 Jones. Simultaneously, the photoresponsivity above 290 nm wavelength decreases significantly with improved rejection ratio between ultraviolet A (UVA) and ultraviolet B (UVB) regions, indicative of enhanced wavelength detecting selectivity. The plasmonic resonance features observed in transmittance spectra are consistent with the finite difference time-domain (FDTD) calculations. This agreement indicates that the enhanced electric field strength induced by the localized surface plasmon resonance is responsible for the enhanced absorption and photoresponsivity. The formed localized Schottky barrier at the interface of Rh/Ga2O3 will deplete the carriers at the Ga2O3 surface and lead to the remarkable reduced dark current and thus improve the detectivity. These findings provide direct evidence for Rh plasmonic enhancement in solar-blind spectral region, offering an alternative pathway for the rational design of high-performance solar-blind PDs.
Multi-layered full-field phase imaging using continuous-wave terahertz ptychography
Authors: Wang Dayong , Li Bing , Rong Lu , Tan Fangrui , Healy John J. , Zhao Jie , Wang Yunxin
Published: January 2020

Due to the unique properties of terahertz (THz) waves, THz phase imaging has been widely investigated to retrieve the absorption and phase modulation of dielectric two-dimensional thin samples, as well as multiple stacked samples. In this Letter, we apply the three-dimensional ptychographic iterative engine algorithm for continuous-wave THz full-field multi-layered phase imaging. The complex-valued transmission function of two-layered polypropylene thin plates and the corresponding probe function are reconstructed, respectively, which are immune to crosstalk of different layers. The phenomenon of the field-of-view enlargement at the second object layer is observed. This lensless compact imaging method can be potentially used for THz three-dimensional imaging.
Spontaneous parametric down conversion in a doubly resonant one-dimensional photonic crystal
Authors: Introini Viola , Steel M. J. , Sipe J. E. , Helt L. G. , Liscidini Marco
Published: January 2020

We study spontaneous parametric down conversion (SPDC) in a one-dimensional photonic crystal designed to operate in a doubly resonant configuration, where the frequencies of the pump and the generated photons are both tuned to band-edge resonances. We investigate the spectral correlations of the generated photons as a function of the spectral width of the pump, and demonstrate that the SPDC generation rate can scale with the fifth power of the structure length in the limit of a quasi-continuous-wave pump. We show that such an unusual scaling can be simply connected with the scaling of second-harmonic generation in the same structure, illustrating the general link between spontaneous and stimulated parametric nonlinear processes.
Underwater 3D deblurring-gated range-intensity correlation imaging
Authors: Wang Minmin , Wang Xinwei , Sun Liang , Yang Yuqing , Zhou Yan
Published: January 2020

Three-dimensional (3D) range-gated imaging has great potential in underwater target detection, navigation, and marine scientific research due to good backscatter suppression. However, in turbid water, apparent backscatter leads to bad range resolution and accuracy in 3D reconstruction. To solve this problem, a 3D deblurring-gated range-intensity correlation imaging method is proposed based on light propagation property in water. In the method, only the water attenuation coefficient and a reference image are needed to calculate the depth-noise maps (DNM) of target gate images at different ranges. By subtracting the DNMs from target gate images, new gate images with less noise can be obtained, and then 3D images with high range resolution and accuracy are reconstructed. To prove the feasibility of the proposed method, experiments have been performed in pools under different water conditions. The results show that a higher peak signal-to-noise ratio improvement is about 9 dB in new gated images.
TESS: The Little Satellite with a Big Job
Authors: Coffey Valerie C.
Published: January 2020

The Transiting Exoplanet Survey Satellite is surveying the solar
neighborhood for Earth-like exoplanets—and reaping a data harvest
with potential impact far beyond the search for life.
Transzkulturális utazás Papp Sándor Zsigmond Gyűlölet című regényében
Authors: Bányai Éva
Published: January 2020

Írásomban Papp Sándor Zsigmond Gyűlölet (2018) című regényében vizsgálom a transzkulturalitás, a hibriditás jegyeit, a másság/idegenség szövegbeli megnyilvánulását, különböző regiszterek váltását és azok egymásrahatását. A kétnyelvűség, a másik nyelv szövegformáló és -alakító komponense a regénynek, amelynek kiemelt tétje a jelzett térség eltérő, köztességében vizsgált kulturális, vallási és mentalitásbeli viszonytereinek megformálása, a transzkulturalitás meghatározottságának dominanciája.
Physico-Chemical Properties of Nickel Promoted Sulfated Zirconia Powder Prepared using Different Procedures
Authors: Amin Amalia Kurnia , Wijaya Karna , Trisunaryanti Wega
Published: January 2020

In this work, nickel promoted sulfated zirconia (Ni/SZ) as catalyst was prepared by either by reflux (Ni/SZ-R) or hydrothermal Ni impregnation (Ni/SZ-H) routes. The aim of this study was to evaluate the influences of two preparative methods on the physico-chemical properties of prepared catalysts. Both the catalysts were characterized by XRD, FTIR, ammonia adsorption, SEM-EDX, TEM-SAED, AAS and BET. It was found that the presence of sulfate and nickel could enhance the Brønsted and Lewis active acid sites. In relation to the effect of Ni impregnation method, acidity, amount of sulfate and Ni found in Ni/SZ-R were higher than those in Ni/SZ-H. Unfortunately, higher impregnated sulfate and nickel on zirconia support led to a decrease in surface area and pore volume and an increase
in crystallite size of grainy aggregated mesoporous nickel promoted sulfated zirconia (Ni/SZ).
Synthesis, Structure and Antioxidant Activity of Mixed
Ruthenium(III) Benzoyl Pyridine Complex
Authors: Jayanthi E. , Anusuya M. , Anusuya R. , Thenmozhi K. , Nagaveni A. , Bhuvanesh N.S.P.
Published: January 2020

A new ruthenium arsine complex was prepared by reacting equimolar ratio of [RuBr3(AsPh3)3] and 2-benzoyl pyridine. It was characterized by microanalysis, FT-IR and single crystal X-ray diffraction studies. X-ray diffraction data showed the distorted octahedral geometry of the complex. The pyridine nitrogen and carbonyl oxygen of the ligand coordinated with the metal center. Antioxidant activity of the complex was analyzed using different assays, which manifested significant activity. It has been found that a newly synthesized complex possessed better antioxidant activity than the ligand and precursor
complex.
Green Synthesis and Applications of Nano CeO2/rGO Solar Active Photocatalyst for the Degradation of Basic Auramine-O Dye
Authors: Loganathan A. , Sivakumar A. , Murugesan B. , Sivakumar P.
Published: January 2020

In present study, the preparation of solar active photocatalyst and its application for the detoxification and degradation of dye molecules in aqueous medium is demonstrated. The reduced graphene oxide (rGO) is prepared from graphene oxide (GO) using Carica papaya leaf extract. Nanosize CeO2 was coated over the rGO surface to make a nanocomposite photocatalyst. Prepared composite catalyst was characterized using SEM, HRTEM, XRD, EDX, FTIR, FT-Raman and UV-DRS techniques. The prepared composite catalyst was used for the degradation of auramine-O dye in its aqueous solution using UV and solar irradiations. The degradation kinetics is also evaluated using Langmuir-Hinshelwood
kinetic model. The kinetic curves are analyzed using basic algorithm. A deviation from the experimental values and the reaction order is enumerated.
Synthesis, Characterization, Stability and Cytotoxic Evaluation of Novel Titanium(IV)
Complexes of 8-Hydroxyquinoline and 2-Hydroxy-N-phenylbenzylamine Derivatives
Authors: Samuel Blassan , Pathak Madhvesh
Published: January 2020

A new class of moisture stable heteroleptic titanium(IV) complexes, synthesized from
8-hydroxyquinoline of the type [(Q)2Ti(2-O-5-X-C6H3CH2NC6H4R] (3a-j), was prepared by reacting the antecedent molecule [(Q2)Ti(OiPr)2] (2) with various 2-hydroxy-N-phenyl-benzylamine analogues in 1:1 molar ratios in dry toluene (where, HQ = 8-hydroxyquinoline; iPr = isopropyl; R = H, 4-CH3, 4-OCH3, 2-Cl, 4-Cl, 2-Br, 4-Br; X= H, Br). Moisture sensitive study disclosed that these new metal complexes were unreacted for 72 h. Mass spectral data were employed for proving the mono-nuclearity of the new derivatives. Thermal decomposition pattern of the new derivatives was explained by
thermogravimetric analyses. Elemental analyses data are in concordance with their expected values. The hexa-coordinated way of titanium-ligand linkage is further proved through NMR, FTIR, and UV-visible spectral studies. The cytotoxic efficiency of new complexes was tested against MDA-MB-231 human breast carcinoma cell line. Complex 3a exhibited the highest cytotoxic potential of 0.039 μM in comparison to all its analogues of this series by employing cisplatin as the standard
Immediate placement of denture over undiagnosed ameloblastoma
Authors: Santos Nathalia Curto dos , Schwarzmeier Lígia Ângelo Tavares , Carta Celina Faig Lima , Carvalho Yasmin Rodarte de , Almeida Janete Dias
Published: January 2020

Ameloblastoma is an odontogenic tumor that affects the bones of the jaw, often affecting posterior region of the mandible. It is a benign neoplasm and is fre­quently associated to an unerupted tooth. The purpose of this article is to report a case of failure in making an immediate full denture in a patient that had an ameloblastoma. A female patient aged 67 years complained of a hard swelling in the right mandible at the premolar region, that she noted after teeth extraction and confection of an immediate denture. Intraoral examination showed buccal and lingual cortical plate expansion and radiograph examination showed multilocular radiolucency with a well-defined margin. Fine needle aspiration was nonproductive and the provisional diagnosis was ameloblastoma. An incisional biopsy was performed and the histopathological report was conclusive of an acanthomatous ameloblastoma. The patient was sent for surgical excision of the lesion and after three years, the patient returned reporting that she was operated elsewhere in the past year and had an unsuccessful bone graft. She was sent to a prosthodontist to make a complete denture. In the present case the ameloblastoma was diagnosed only after the teeth extraction and immediate denture. KeywordsAmeloblastoma; Diagnosis; Mandibular neoplasms; Odontogenic tumors.
Botulinum toxin-A injections as therapy for chronic painful post-traumatic trigeminal neuropathy: case report
Authors: De la Torre Canales Giancarlo , Poluha Rodrigo Lorenzi , Ferreira Dyna Mara , Stuginski-Barbosa Juliana , Conti Paulo Cesar Rodrigues
Published: January 2020

Painful post-traumatic trigeminal neuropathy (PTTN) involves spontaneous and evoked pain, of moderate to severe intensity, continuous and described as burning or shooting. The first line treatment is pharmacological. However, botulinum toxin - A (BoNT-A) can be used when medications cannot control pain. This article describes the use of BoNT-A in a case of PTTN refractory to conventional pharmacological treatment. A 44-year-old male patient presented with an 8-years history of pain in the lower left second molar region. Pain was burning, lasting for seconds, with multiple pain episodes per day. Diagnosis hypothesis was PTTN. After no improvement with conventional pharmacological treatment, injections of BoNT-A were elected. Somatosensory assessment showed a significant reduction in visual analog scale for touch, cold and pinprick sensitivity. Likewise, patient's impression of change in pain significantly improved after BoNT-A injections. Our results suggest that BoNT-A could be used as a treatment for PTTN refractory to conventional treatments.KeywordsPost-traumatic trigeminal neuropathy; Trigeminal neuropathic pain; Botulinum toxin.
Diagnostic accuracy of dental pulse oximeter with customized sensor holder, thermal test and electric pulp test for the evaluation of pulp vitality: an in vivo study
Authors: Janani Krishnamachari , Palanivelu Ajitha , Sandhya Raghu
Published: January 2020

Background: the efficiency of the diagnostic aids plays an important role in the treatment plan. This study aims to assess the diagnostic accuracy of dental pulse oximeter with a customized sensor holder, thermal test and electric pulp tester in assessing the actual pulp status and to evaluate the oxygen saturation level in control healthy teeth, non-vital and teeth with irreversible pulpitis. Material and methods: thirty-seven single canal teeth requiring endodontic therapy were included in the study. The selected teeth were tested with dental pulse oximeter, electric pulp test, cold spray, and heated gutta percha stick. Between each test a time lag of 2 minutes was allowed for the central sensitization to occur.  Three blinded operators were involved in the study. The actual status of the pulp was evaluated after the initiation of endodontic treatment. To assess the actual pulp status direct visual examination of access cavity as performed. The data was statistically analysed using (ANOVA) Analysis of Variance and Post-hoc Tukey test. Results: sensitivity of pulse oximeter, heat test, cold and electric pulp test, was 100, 25, 50, and 12, respectively. The specificity of these tests was 100, 72 81, and 77, respectively. The ANOVA showed that there was statistical difference between all the groups (p=0.0005). Post-Hoc Tukey revealed that there was statistical difference among all the groups, nonvital group (p=0.0005), control group (p=0.01) and for irreversible pulpitis (p=0.01). The overall diagnostic accuracy of pulse oximeter was 100% followed by cold test 66%, heat test to be 49% and electric pulp test to be 45%. Conclusion: the custom-made holder used in the present study aided in providing accurate response for pulp vitality testing. In this study the diagnostic accuracy was high with dental pulse oximeter followed by cold, heat and the least was electric pulp tester in different pulpal conditions.KEYWORDS Cold test; Heat test; Oxygen saturation; Pulse oximeter; Vitality tests.
Clinical performance of whitening on devitalized teeth: a retrospective observational study
Authors: Correia Ayla , Matos Felipe , Huhtala Maria Filomena , Bresciani Eduardo , Caneppele Taciana
Published: January 2020

Objective: This retrospective observational study evaluated the clinical performance of intracoronal whitening and correlated the main factors that interfere with its stability and patient satisfaction. Material and Methods: The paper was designed following the STROBE statement. Patients from the Institute of Science and Technology - ICT/UNESP database who underwent nonvital tooth whitening from August 2010 to July 2015 were selected. Data collection was performed by researching the institution records, patients interview, clinical and radiographic examination. Data were analyzed using Mann-Whitney test and Spearman's correlation (p<0.05). Results: The initial search on 1275 records resulted in 43 patients, of whom 18 were selected according to eligibility criteria. There was positive correlation only between the degree of patient’s satisfaction and the perception of color difference after whitening treatment (p<0.05). Color relapse was observed in all conditions, independently of the period of follow-up (p>0.05). There was no case of external cervical root resorption. Conclusion: Color changes after whitening influenced patient’s satisfaction. There was no correlation among the color relapse and height of gutta-percha, return interval or cause of darkening.KEYWORDSTooth discoloration; Tooth nonvital; Tooth whitening.
Molecular identification of actinomycetes with antimicrobial, antioxidant and anticancer properties
Authors: Abdel-Aziz Mohamed S , Hathout Amal S , El-Neleety Aziza A , Hamed Ahmed A , Sabry Bassem A , Aly Soher E , Abdel-Wahhab Mosaad A
Published: January 2020

The objectives of this study were to isolate and identify the actinomycetes strains from the soil and marine sediments and to evaluate the antimicrobial, antioxidant and cytotoxic activity of their bioactive secondary metabolites. Eight actinomycetes strains were isolated from soil and marine sediment samples collected from different areas in Egypt. Only three actinomycetes exhibited a wide spectrum of antimicrobial activities. They were active in vitro against microbial pathogen viz: Staphylococcus aureus, Escherichia coli, Salmonella typhi, Aspergillus parasiticus, Fusarium solani and Fusarium oxysporum. These promising isolates were selected and identified using molecular identification technique and identified as Streptomyces spp. The crude extracts from the three Streptomyces exhibited potent antimicrobial activities against a set of microbial pathogens as well as antioxidant and anticancer activity in human hepatocellular carcinoma cell line (HepG2). The crude extract of Streptomyces isolate D showed antitumor activity with lC50 0.85 µg/ mL. Forty compounds were identified from the two most promising ethyl acetate extracts of culture broth of Streptomyces sp. (D-EGY) by Gas Chromatography-Mass Spectrometry analysis. It could be concluded that the streptomycetes isolated from the Egyptian environment are promising candidates as antimicrobial, antioxidant and anticancer.
Chlorophyll fluorescence as a tool to select salinity-tolerant cowpea genotypes
Authors: Andrade Jaima Ribeiro de , Maia Júnior Sebastião De Oliveira , Barbosa José Wilson Da Silva , Alencar Aryadne Ellen Vilar de , Jovino Raphael Silva , Nascimento Ronaldo Do
Published: January 2020

The use of saline water reduces the growth and productivity of crops, so the need for techniques that make possible the use of this resource such as the use of salinity tolerant genotypes and efficient selection methods are of great importance. Thus, this study aimed to evaluate the tolerance of cowpea (Vigna unguiculata L. Walp.) genotypes to salt stress, through the chlorophyll fluorescence analysis. The experiment was conducted in a protected environment at the Federal University of Campina Grande, Paraíba, Brazil, using a completely randomized design in a 2 x 10 factorial arrangement, with three replications, consisting of two levels of irrigation water salinity (0.6 and 5.1 dS m-1) and ten cowpea genotypes: (G1: MNCO1-649F-2-1, G2: MNCO3-736F-2, G3: PINGO DE OURO-1-2, G4: BRS GURGUÉIA, G5: BRS MARATAOÃ, G6: MNCO2-676F-3, G7: MNCO2-683F-1, G8: MNCO3-737F-5-4, G9: MNCO3-737F-5-9, and G10: BRS TUMUCUMAQUE). The stem length, stem diameter, SPAD index, and chlorophyll fluorescence transients were evaluated. The G2 and G4 genotypes had the lowest reductions in the growth, stem diameter, initial fluorescence, and primary and maximum photochemical efficiency of PSII, proving to be tolerant to salinity. Chlorophyll fluorescence is a tool that can be used in the selection of salinity-tolerant cowpea genotypes.
Glycoalkaloids as medicinal agents from callus and regenerated plants of Solanum nigrum var. judaicum
Authors: Al-Ashaal Hanan Abd Al-Hay
Published: January 2020

The target of this study is production of glycoalkaloids from cultures of Solanum nigrum var. judaicum Besser. Further, to evaluate their therapeutic effects. S. nigrum var. judaicum leaves were implanted in MS media containing growth regulators for in vitro study. HPLC analyses were applied for qualitative and quantitative determination of glycoalkaloids. Cytotoxic effects against human carcinoma cell lines were evaluated. In addition, antiviral, antioxidant, anti-inflammatory and antiparasitic activities of the formed glycoalkaloids were estimated.  HPLC data indicated the success of in vitro solasodine and solanidine glycosides production. Solasonine represented the highest concentration. Biological assays illustrated that obtained glycoalkaloids exhibited cytotoxic activity against human carcinoma cell lines that may be attributed to free radical scavenging activity (69.98%). Strong antiherps performance was observed (94%). In addition, the glycoalkaloids showed in vitro schistomicidal (IC50 76.4 ppm) and fasciolicidal (IC50 76.6 ppm) activities. In vivo anti-inflammatory assay revealed potent activity against carrageenan induced edema. Glycoalkaloids were formed 2-5 folds that of intact plant pointed to the efficiency of the cultures. The present findings referred to the pronounced biological performance of the produced glycoalkaloids including antiviral, cytotoxic anti-inflammatory and antiparasitic activities. Botanical derived medication from S. nigrum var. judaicum could be accomplished guided with the present data.
Genetic diversity in ornamental pepper plants
Authors: Fortunato Flávia Laís Gomes , Do Rêgo Elizanilda Ramalho , De Carvalho Michelle Gonçalves , Dos Santos Cristine Agrine Pereira , Do Rêgo Mailson Monteiro
Published: January 2020

The genus Capsicum comprises a wide variety of peppers and peppers, with different sizes, colors and flavors. The present work had the objective to characterize and evaluate the genetic divergence among eight accessions of pepper (Capsicum annuum). The experiment was developed at the Federal University of Paraíba, Areia - PB. Eight accessions of pepper belonging to the germplasm bank of the CCA-UFPB were used. The experimental design was completely randomized. Data were submitted to analysis of variance by the F test at a level of 5% and 1% significance and the means were grouped by the Scott Knott test at 5% and 1% significance. For the analysis of genetic divergence, the Tocher grouping method and canonical variables were used. The treatment effects were significant, by the F test, at a level of 1% for all the characteristics evaluated, except for crown width and stem diameter, which were significant at 5% probability. According to the results obtained in the Scott & Knott test at 5% and 1% probability, the accessions were differentiated into two to six different classes. According to Tocher’s methodology the accessions were grouped into two groups. In the analysis of the canonical variables, the first three variables explained 94.18% of the total variance, and four different groups were formed according to the graphical dispersion.
Biofertilizers in horticultural crops
Authors: Cavalcante Lourival Ferreira , Bezerra Francisco Thiago Coelho , Souto Antônio Gustavo de , Bezerra Marlene Alexandrina Ferreira , Lima Geovani Soares de , Gheyi Hans Raj , Pereira Jorge F. da Silva , Beckmann-Cavalcante Márkilla Zunete
Published: January 2020

Bovine manure biofertilizers can exert physical, chemical, and biological effects on the soil and the phytoprotective, physiological, and productive actions in horticultural crops. The literature review was performed to compile information on the production, uses, and effects of bovine manure biofertilizers on soil properties and plants. Biofertilizers are produced by organic components, minerals, and inoculants. Among the organic sources, the bovine manure is the most used. The fermentation of the bovine manure in water constitutes the Vairo biofertilizer, the most employed in Brazilian horticulture. With the chemical enrichment of this preparation came the Supermagro, Agrobio, and Agrobom biofertilizers. In the soil, it can act in the improvement of soil fertility, physical properties, and in the diversity and abundance of the biota. Also, it can act in control of pests and diseases, leaf composition concerning macro and micronutrients, and in the production and post-harvest quality of horticultural crops. Therefore, this review describes the preparation, chemical composition, and utilization of bovine manure biofertilizers in both soil and plants, offering perspectives of research on the formulations, application, and effects of these inputs on horticultural species.
Uma proposta de modelagem matemática aplicada a prevenção de possíveis surtos de cólera
Authors: Leite Maria de Fátima da Silva , Lima Bertrand Luiz Corrêa
Published: January 2020

Este artigo pretende apresentar uma modelagem matemática com o intuito de caracterizar e determinar possíveis prevenções de surtos de cólera, isto é, determinar os fatores causadores desta doença e buscar resultados que mostrem formas de controle e irradiação das mesmas. Desenvolvido no âmbito do curso de Licenciatura em Matemática da Faculdade de Ciências e Tecnologia da Universidade de Coimbra em parceria com o Instituto de Ciências Exatas e Naturais do Pontal, o objetivo principal deste trabalho é expor um modelo matemático determinístico de cólera que foi desenvolvido por Codeço (2001) e Fakai, Ibrahim e Danbaba (2013). Inicialmente, realizou-se um estudo acerca dos modelos Suscetíveis - Infectados - Suscetíveis (SIS) com o propósito de compreender e delinear como se dava a representação de um modelo matemático para possíveis prevenções de surtos de cólera. Vale destacar que neste modelo dentre os resultados alcançados, destacam-se os relacionados com o número básico de reprodução (R0) e o número crítico ou limiar (Sc), os quais são usados para prever e estimar a ocorrência do surto de cólera. Quando R0 < 1, o estado de equilíbrio livre de doença é assintoticamente estável, isto é, os casos reduzirão e desaparecerão. Se R0 > 1 a estabilidade do equilíbrio livre de doença é instável, isto é, o surto de cólera ocorrerá na comunidade de interesse. Já em relação ao (Sc) se o número de suscetíveis na população é maior que o número crítico (Sc), um surto de cólera ocorrerá.
Etnomatemática nas práticas laborais da pesca: relato de experiências e memórias
Authors: Martins Gustavo , Freitas Adriano Vargas
Published: January 2020

O presente artigo apresenta relato de experiência elaborado a partir de pesquisa qualitativa envolvendo relato de experiências e entrevistas com pescadores e redeiros da Praia de Provetá, na Ilha Grande - em Angra dos Reis, Rio de Janeiro, região que concentram grande quantidade de caiçaras deste município. A análise das memórias e experiências laborais da pesca, que são passadas de gerações a gerações de pescadores, em uma tentativa de preservar a cultura e a sobrevivência dessa comunidade, nos permitiram verificar uma grande quantidade de conhecimentos que podem ser considerados como matemáticos, imbricados nesses saberes e fazeres. Desde a preparação para a saída da embarcação do porto, a escolha do melhor lugar para lançar a rede, até o seu retorno, quando há o acerto das contas com o proprietário da embarcação e a partilha dos resultados entre a tripulação. Mas, antes mesmo da própria pesca, uma série de outros conhecimentos estão envolvidos e são aplicados nas atividades laborais desta comunidade, por exemplo, na forma de construção e remendo das redes. Como suporte teórico para a identificação e análise desses conhecimentos, utilizamos o Programa Etnomatemática, que nos permitiu verificar o aparecimento de costumes culturais que envolvem práticas de contagem e medições diversas, muitas vezes distantes dos conhecimentos ditos escolares.
El sentido deportivo de la vida en la hermenéutica raciovitalista de Ortega y Gasset
Authors: Conill Sancho Jesús
Published: January 2020

El trabajo pretende mostrar, en primer lugar, que el raciovitalismo de José Ortega y Gasset constituye una de las líneas posibles del proceso de transformación hermenéutica del pensamiento contemporáneo. La impronta nietzscheana de carácter hermenéutico en el desarrollo del pensamiento orteguiano se manifiesta en aspectos muy relevantes, como la importancia del cuerpo y la innovadora noción de vida, que son asuntos decisivos para comprender el deporte.En segundo lugar, hay que aprovechar las ricas reflexiones de Ortega y Gasset sobre el deporte, que tienen un alcance muy relevante para la entera vida humana, a partir de la reivindicación de una noción de cuerpo viviente (Leib) y de una nueva noción de la vida. El deporte forma parte de un horizonte vital no reducido por la estrecha perspectiva utilitaria, sino que anuncia la forma superior de la existencia humana, la apertura a un sentido festival y creativo de la vida. Ésta exige una disciplina, que no se conforma con el mero cumplimiento correcto de unas normas, sino que incita a perfeccionarse indefinidamente. La cualidad de lo deportivo es la vitalidad creativa, una nueva forma de entender la vida. Porque desde esta nueva perspectiva vital, ya no sirve como modelo el homo oeconomicus, sino que el fenómeno vital entendido de modo deportivo es festival, alegre, creativo, agonal y olímpico, libérrimamente esforzado, fuente de energía con sentido. La vida es en principio creación, experimento creador, como en la concepción nietzscheana.
EFEKTIVITAS PENYELESAIAN SENGKETA PERBANKAN SYARIAH MELALUI MEKANISME FASILITASI OLEH OTORITAS JASA KEUANGAN (OJK)
Authors: Musjtari Dewi Nurul , Yunita Ani , Hamsin Muhammad Khaeruddin
Published: January 2020

OJK telah mempraktikkan model penyelesaian sengketa dengan fasilitasi. Tujuan penelitian ini adalah untuk mengetahui efektifitas penyelesaian sengketa perbankan syariah melalui OJK dan implementasi model penyelesaian sengketa yang diterapkan. Penelitian ini merupakan penelitian hukum normatif dan empiris yang menggunakan analisis kualitatif dengan paradigma konstruktif. Otoritas Jasa Keuangan (OJK) dalam praktiknya telah efektif menerapkan model penyelesaian sengketa yang dikenal dengan teknik fasilitasi, dengan melakukan klarifikasi kepada para pihak, dengan capaian seluruh pengaduan yang diterima OJK melalui bagian edukasi dan perlindungan konsumen di OJK DIY maupun Jawa Tengah dapat diselesaikan sesuai dengan jangka waktu yaitu 20 (dua puluh) hari kerja dengan perpanjangan hingga 30 (tiga) puluh hari kerja dengan tingkat keberhasilan 100 %.
RESTRUKTURISASI UTANG TERHADAP PERUSAHAAN GO PUBLIC DALAM KEPAILITAN DAN PKPU
Authors: Amboro Florianus Yudhi Priyo
Published: January 2020

Pencapaian perdamaian masih jauh dari harapan dalam hukum kepailitan. Meskipun perdamaian adalah kunci bagi perusahaan untuk tetap berlangsung, termasuk untuk perusahaan go public. Tujuan dari penelitian ini adalah untuk mendapatkan gambaran implementasi restrukturisasi utang perusahaan go public dalam proses kepailitan dan Penundaan Kewajiban Pembayaran Utang, yang dicapai dengan jalan perdamaian. Penelitian ini adalah penelitian yuridis empiris. Pendekatan yang digunakan adalah pendekatan kualitatif yang dianalisis dengan metode deduktif. Hasil penelitian adalah implementasi restrukturisasi utang perusahaan go public berdasarkan Hukum Kepailitan Indonesia adalah penjadwalan kembali pembayaran utang dan hal ini banyak digunakan dalam praktiknya dan dikombinasikan dengan model restrukturisasi utang yang lain.
Pełnomocność dziecka w edukacji wczesnoszkolnej w odsłonie krytycznych zdarzeń
Authors: Nowicka Marzenna
Published: January 2020

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Zaburzenia depresyjne wśród studentek i studentów w Polsce
Authors: Karmolińska-Jagodzik Ewa
Published: January 2020

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How to open inquiry teaching? An alternative teaching scaffold to foster students’ inquiry skills
Authors: Baur Armin , Emden Markus
Published: January 2020

Students are expected to learn scientific inquiry. It consists of several individual processes that need to be coordinated. Recent teaching concepts have suggested fading students into a limited set of interconnected processes, mostly using backwards-fading techniques. The efficiency of open approaches to learning has been criticized repeatedly in science education research. Following a brief discussion of previous scaffolded inquiry teaching concepts developing students into “open inquiry”, it is argued that these have been interpreted too strictly in science classrooms: (i) restricting inquiry to too few processes; (ii) delivering support to students in an all-or-nothing fashion; (iii) understanding opening of inquiry as a one-way-street insensitive to needs of momentary closing. This is not justified by the situated character of pedagogical considerations that depend on learners’ needs and potentials, teachers’ strengths and insecurities, and potential constraints from content. An alternative matrix for teaching inquiry is suggested that distinguishes five processes in four variations of openness. An example from chemistry shows that the achieved degree of openness is derived from situated considerations and is not ruled by a priori decisions on openness. Nor is this decision governed by faithfully adhering to a schematic sequence (confirmatory → structured → guided → open inquiry).
Vibration measurements of paper prints and the data analysis
Authors: Kilikevicius Arturas , Jurevicius Mindaugas , Urbanavicius Robertas , Turla Vytautas , Kilikeviciene Kristina , Fursenko Antanas
Published: January 2020

This paper discusses about the scatter of the intensity of vibration signals of paper prints and analyses their mechanical parameters applying the theory of covariance functions. It is an important practical problem, before starting printing process of colour prints, expecting the correct position of fixed raster points, to adjust the paper sheet tension between printing machine sections. The results of measuring the intensity of vibration signals at the fixed points were presented on a time scale in the form of arrays (matrices). The estimates of cross-covariance functions between digital arrays result in measuring the intensity of vibrations, and the estimates of auto-covariance functions of single arrays were calculated upon changing the quantization interval on the time scale. Application of normed auto-covariance and cross-covariance functions enables reduction of preprinting experimental measurements, which saves time (what is actual for industry). Tension force depends on the mechanical properties of the paper sheet and print. These characteristics depend on paper type, layers of printing colors and positioning of the coverage. In the calculation, the software Matlab 7 in batch statement environment was applied.
Labour-process-related Racism in Transnational European Production: Fragmenting Work meets Xenophobic Culturalisation among Workers
Authors: Hürtgen Stefanie
Published: January 2020

This article discusses labour-process-related racism and xenophobia among workers. It uses empirical findings from different projects to argue that, to a large extent, actual racism and xenophobia refer to experiences of objectification/reification, namely by harsh social competition in contemporary fragmented and transnationalised production. Racism and xenophobia are discussed as specific forms of subjectification which reproduce and stabilise these competitive social relations among workers, within and beyond countries. Racism thus is part of a “restrictive agency” developed by workers – that is, their orientation towards the subordination under objectifying, seemingly non-changeable structures. As a consequence, the article concludes, the repressive structures have to be questioned, and for this purpose the intense debate on racism and right-wing populism among workers is one-sided; there must be more attention paid to progressive labour-process-related, universalistic orientations that exist, despite already long-lasting neo-liberalism.

KEY WORDS: racism; Labour Process Theory; transnational production networks; fragmentation; Europeanisation; Critical Psychology
Ten Years of the Global Labour Journal: Reflecting on the Rise of the New Global Labour Studies
Authors: Webster Edward , O'Brien Robert
Published: January 2020

The article examines the origins of the Global Labour Journal (GLJ) and its goal of broadening labour studies. It shows how, over the past decade, the GLJ has recorded and analysed the forms of action and organisation that fall outside the traditional focus of labour studies. Through a range of careful case studies, the Journal has made an important contribution to the growing field of global labour studies. The two topics that have been the focus of most attention across all types of submissions have been: 1) precarious work and new forms of labour struggles; and 2) international trade unionism or transnational/global labour. The Journal has been successful in giving a platform to content from the Global South, but it is uneven and limited. Another major limitation is the failure to bridge the divide between the big questions raised in the Marx/Polanyi debates during the early phase of the Journal with the more concrete accounts of labour rediscovering its power on the periphery of labour movement.  The article concludes by pointing towards possible options facing labour and the choices facing the GLJ.

KEY WORDS: Global labour; global labour studies; precarious work; future of labour
Spatiotemporal Transition in the Role of Synaptic Inhibition to the Tail Beat Rhythm of Developing Larval Zebrafish
Authors: Roussel Yann , Paradis Melissa , Gaudreau Stephanie F. , Lindsey Ben W. , Bui Tuan V.
Published: January 2020

Significant maturation of swimming in zebrafish (Danio rerio) occurs within the first few days of life when fish transition from coiling movements to burst swimming and then to beat-and-glide swimming. This maturation occurs against a backdrop of numerous developmental changes - neurogenesis, a transition from predominantly electrical to chemical-based neurotransmission, and refinement of intrinsic properties. There is evidence that spinal locomotor circuits undergo fundamental changes as the zebrafish transitions from burst to beat-and-glide swimming. Our electrophysiological recordings confirm that the operation of spinal locomotor circuits becomes increasingly reliant on glycinergic neurotransmission for rhythmogenesis governing the rhythm of tail beats. This transition occurred at the same time that we observed a change in rhythmicity of synaptic inhibition to spinal motoneurons (MNs). When we examined whether the transition from weakly to strongly glycinergic dependent rhythmogenesis occurred at a uniform pace across the length of the spinal cord, we found that this transition occurred earlier at caudal segments than at rostral segments of the spinal cord. Furthermore, while this rhythmogenic transition occurred when fish transition from burst swimming to beat-and-glide swimming, these two transitions were not interdependent. These results suggest that there is a developmental transition in the operation of spinal locomotor circuits that is gradually set in place in the spinal cord in a caudo-rostral temporal sequence.
Integration of Hypernatremia and Angiotensin II by the Organum Vasculosum of the Lamina Terminalis Regulates Thirst
Authors: Kinsman Brian J. , Simmonds Sarah S. , Browning Kirsteen N. , Wenner Megan M. , Farquhar William B. , Stocker Sean D.
Published: January 2020

The organum vasculosum of the lamina terminalis (OVLT) contains NaCl-sensitive neurons to regulate thirst, neuroendocrine function, and autonomic outflow. The OVLT also expresses the angiotensin II (AngII) type1 receptor, and AngII increases Fos expression in OVLT neurons. The present study tested whether individual OVLT neurons sensed both NaCl and AngII to regulate thirst and body fluid homeostasis. A multifaceted approach, includingin vitrowhole-cell patch recordings,in vivosingle-unit recordings, and optogenetic manipulation of OVLT neurons, was used in adult, male Sprague Dawley rats. First, acute intravenous infusion of hypertonic NaCl or AngII produced anatomically distinct patterns of Fos-positive nuclei in the OVLT largely restricted to the dorsal cap versus vascular core, respectively. However,in vitropatch-clamp recordings indicate 66% (23 of 35) of OVLT neurons were excited by bath application of both hypertonic NaCl and AngII. Similarly,in vivosingle-unit recordings revealed that 52% (23 of 44) of OVLT neurons displayed an increased discharge to intracarotid injection of both hypertonic NaCl and AngII. In marked contrast to Fos immunoreactivity, neuroanatomical mapping of Neurobiotin-filled cells from bothin vitroandin vivorecordings revealed that NaCl- and AngII-responsive neurons were distributed throughout the OVLT. Next, optogenetic excitation of OVLT neurons stimulated thirst but not salt appetite. Conversely, optogenetic inhibition of OVLT neurons attenuated thirst stimulated by hypernatremia or elevated AngII but not hypovolemia. Collectively, these findings provide the first identification of individual OVLT neurons that respond to both elevated NaCl and AngII concentrations to regulate thirst and body fluid homeostasis.

SIGNIFICANCE STATEMENTBody fluid homeostasis requires the integration of neurohumoral signals to coordinate behavior, neuroendocrine function, and autonomic function. Extracellular NaCl concentrations and the peptide hormone angiotensin II (AngII) are two major neurohumoral signals that regulate body fluid homeostasis. Herein, we present the first compelling evidence that individual neurons located in the organum vasculosum of the lamina terminalis detect both NaCl and AngII. Furthermore, optogenetic interrogations demonstrate that these neurons play a pivotal role in the regulation of thirst stimulated by NaCl and AngII. These novel observations lay the foundation for future investigations for how such inputs as well as others converge onto unique organum vasculosum of the lamina terminalis neurons to coordinate body fluid homeostasis and contribute to disorders of fluid balance.
Depression, anxiety and stress among patients with hematological malignancies and the association with quality of life: a cross-sectional study
Authors: Papathanasiou Ioanna V , Kelepouris Konstantinos , Valari Chrisoula , Papagiannis Dimitrios , Tzavella Foteini , Kourkouta Lambrini , Tsaras Konstantinos , Fradelos Evangelos C.
Published: January 2020

Αim. To evaluate psychological distress and quality of life of patients with hematological malignancies, as well as to identify the prognostic factors that aggravate their condition.

Methods. A cross-sectional, descriptive study including 87 patients with Hematological Malignancies was conducted. Data were collected with an anonymous questionnaire consisted by A) a sheet with socio-demographic characteristics, B) the Depression, Stress and Stress Scale (DASS21), and C) World Health Organization Life Quality Scale (WHOQOL - BREF30). The processing and statistical analysis of the empirical material of the research were done using the SPSS (Statistical Package for Social Science) 22.0.

Results. The results showed that the age of the sample averaged 71.22 years (SD = 8.71). Regarding their marital status, single mothers were 9.2%, married 62.1%. With regard to disease-related features, 28.7% of patients had Hodgkin's Lymphoma, 27.6% Chronic Lymphocytic Leukemia, 27.6% MDL and 16.1% of patients had myelodysplastic syndrome Multiple myeloma. In the investigation of the relationship between the Mental health Scale and the Quality of Life, negative correlations of Depression, Stress, Stress and the total DAS Scale with all dimensions of Patient Quality of Life were found.

Conclusions. Higher levels of psychological distress and poor mental health are associated with a low level of quality of life.
Distinguishing Children’s Hospitals From Non–Children’s Hospitals in Large Claims Data
Authors: Piper Kaitlin N. , Baxter Katherine J. , McCarthy Ian , Raval Mehul V.
Published: January 2020

BACKGROUND:

The first methodologic step needed to compare pediatric health outcomes at children’s hospitals (CHs) and non–children’s hospitals (NCHs) is to classify hospitals into CH and NCH categories. However, there are currently no standardized or validated methods for classifying hospitals. The purpose of this study was to describe a novel and reproducible hospital classification methodology.

METHODS:

By using data from the 2015 American Hospital Association survey, 4464 hospitals were classified into 4 categories (tiers A–D) on the basis of self-reported presence of pediatric services. Tier A included hospitals that only provided care to children. Tier B included hospitals that had key pediatric services, including pediatric emergency departments, PICUs, and NICUs. Tier C included hospitals that provided limited pediatric services. Tier D hospitals provided no key pediatric services. Classifications were then validated by using publicly available data on hospital membership in various pediatric programs as well as Health Care Cost Institute claims data.

RESULTS:

Fifty-one hospitals were classified as tier A, 228 as tier B, 1721 as tier C, and 1728 as tier D. The majority of tier A hospitals were members of the Children’s Hospital Association, Children’s Oncology Group, and National Surgical Quality Improvement Program–Pediatric. By using claims data, the percentage of admissions that were pediatric was highest in tier A (88.9%), followed by tiers B (10.9%), C (3.9%), and D (3.9%).

CONCLUSIONS:

Using American Hospital Association survey data is a feasible and valid method for classifying hospitals into CH and NCH categories by using a reproducible multitiered system.