bluuebunny/crossref_metadata_2025 huggingface dataset:
“Free won’t” after a beer or two: chronic and acute effects of alcohol on neural and behavioral indices of intentional inhibition
Authors: Liu Yang , van den Wildenberg Wery P. M. , González Gorka Fraga , Rigoni Davide , Brass Marcel , Wiers Reinout W. , Ridderinkhof K. Richard
Published: January 2020

Background

Response inhibition can be classified into stimulus-driven inhibition and intentional inhibition based on the degree of endogenous volition involved. In the past decades, abundant research efforts to study the effects of alcohol on inhibition have focused exclusively on stimulus-driven inhibition. The novel Chasing Memo task measures stimulus-driven and intentional inhibition within the same paradigm. Combined with the stop-signal task, we investigated how alcohol use affects behavioral and psychophysiological correlates of intentional inhibition, as well as stimulus-driven inhibition.

Methods

Experiment I focused on intentional inhibition and stimulus-driven inhibition in relation to past-year alcohol use. The Chasing Memo task, the stop-signal task, and questionnaires related to substance use and impulsivity were administered to 60 undergraduate students (18–25 years old). Experiment II focused on behavioral and neural correlates acute alcohol use on performance on the Chasing Memo task by means of electroencephalography (EEG). Sixteen young male adults (21–28 years old) performed the Chasing Memo task once under placebo and once under the influence of alcohol (blood alcohol concentration around 0.05%), while EEG was recorded.

Results

In experiment I, AUDIT (Alcohol Use Disorder Identification Test) total score did not significantly predict stimulus-driven inhibition or intentional inhibition performance. In experiment II, the placebo condition and the alcohol condition were comparable in terms of behavioral indices of stimulus-driven inhibition and intentional inhibition as well as task-related EEG patterns. Interestingly, a slow negative readiness potential (RP) was observed with an onset of about 1.2 s, exclusively before participants stopped intentionally.

Conclusions

These findings suggest that both past-year increases in risky alcohol consumption and moderate acute alcohol use have limited effects on stimulus-driven inhibition and intentional inhibition. These conclusions cannot be generalized to alcohol use disorder and high intoxication levels. The RP might reflect processes involved in the formation of an intention in general.
Millettia pinnata: a study on the extraction of fibers and reinforced composites
Authors: Mohankumara P. B. , Thakare Shraddha Prashant , Guna Vijaykumar , Arpitha G. R.
Published: January 2020

In this work, the potential for usingMillettia pinnatastalk for extracting cellulosic natural fibers and its subsequent use in reinforced composites was studied. The extracted fibers were characterized for its composition, mechanical, thermal stability and morphological properties. Compositional analysis showed that the fibers possessed 54% cellulose, 12% hemicellulose, 15% lignin and 11% ash. The tensile strength of the fiber was 310 MPa, which is comparable to cotton and linen. The tensile strength of theM. pinnatafiber-reinforced polypropylene composites was 17.96 MPa which was similar to other natural fiber-based composites.M. pinnatafibers appear promising for a wide range of applications including textiles and other typical composites applications.
Cornea modelling
Authors: Pandolfi Anna
Published: January 2020

Background

Biomechanics introduces numerous technologies to support clinical practice in ophthalmology, with the goal of improving surgical outcomes and to develop new advanced technologies with minimum impact on clinical training. Unfortunately, a few misconceptions on the way that computational methods should be applied to living tissues contributes to a lack of confidence towards computer-based approaches.

Methods

Corneal biomechanics relies on sound theories of mechanics, including concepts of equilibrium, geometrical measurements, and complex material behaviors. The peculiarities of biological tissues require the consideration of multi-physics, typical of the eye environment, and to adopt customized geometrical models constructed on the basis of advanced optical imaging and in-vivo testing.

Results

Patient-specific models are able to predict the outcomes of refractive surgery and to exploit the results of in-vivo test to characterize the material properties of the corneal tissue.

Conclusions

Corneal biomechanics can become an important support to clinical practice, provided that methods are based on the actual multi-physics and use customized geometrical and mechanical models.
Breakfast consumption habits of Australian men participating in the “Typical Aussie Bloke” study
Authors: Quatela Angelica , Patterson Amanda , Callister Robin , MacDonald-Wicks Lesley
Published: January 2020

Background

Breakfast is often regarded as “the most important meal of the day” but there is limited reporting of the foods/beverages currently constituting a typical breakfast. This study investigated current breakfast habits of Australian men.

Methods

Men aged 18-44y were recruited from metropolitan and regional NSW Australia and completed an online survey investigating breakfast consumption habits and other lifestyle parameters including demographic characteristics and waking habits.

Results

112 men participated. Most (83.5%) ate breakfast ≥5 times/week and consumed this meal before 8 am (84.0%). Breakfast for habitual breakfast eaters consisted of one or more of the following foods or beverages eaten ≥5 times/week: breakfast cereal (50.0%), milk for cereal (51.1%), fruit (28.7%), toast (13.8%), spreads (11.7%), yogurt (12.8%), and/or coffee (40.4%). Breakfast may also include the following foods 1–4 times/week: eggs (58.5%), bacon (30.9%), juice (19.1%), and/or tea (17.0%).

Conclusion

A majority of Australian men younger than 45 years old were found to eat breakfast most days of the week. Cereal, milk and fruit were the most common foods consumed for breakfast. Breakfast is considered to be an important meal among health professionals and we found a majority of Australian men do eat breakfast regularly. Approximately half of the young men in the study reported consuming cereal and milk for breakfast most of the time, a breakfast option that is linked to higher daily wholegrain, fibre and micro-nutrient intakes.
Novel indoor positioning system based on ultra-wide bandwidth
Authors: Wei Zhen , Jiang Rui , Wei Xing , Cheng Yun-An , Cheng Lei , Wang Cai
Published: January 2020

To tackle challenges such as interference and poor accuracy of indoor positioning systems, a novel scheme based on ultra-wide bandwidth (UWB) technology is proposed. First, we illustrate a distance measuring method between two UWB devices. Then, a Taylor series expansion algorithm is developed to detect coordinates of the mobile node using the location of anchor nodes and the distance between them. Simulation results show that the observation error under our strategy is within 15 cm, which is superior to existing algorithms. The final experimental data in the hardware system mainly composed of STM32 and DW1000 also confirms the performance of the proposed scheme.
Testes para avaliação das previsões de value-at-risk e expected shortfall
Authors: Lincovil Jaime Enrique , Chiann Chang
Published: January 2020

A avaliação das previsões de medidas de risco, como o Value-at-Risk (VaR) e o Expected Shortfall (ES), é uma atividade muito relevante para as instituições financeiras. Os testes que realizam esta avaliação foram introduzidos com o objetivo de verificar a efiiência destas previsões. Neste trabalho comparamos o poder empírico de novas classes de testes de avaliação presentes na literatura. Além disso, utilizamos estes procedimentos para avaliar a efiiência das previsôes geradas pelo método de simulação histórica e baseados na distribuição generalizada de Pareto. Para avaliar previsões de VaR, a classe de testes Geométrico-VaR destacou-se por ter um poder empírico maior que os outros testes nos cenários simulados. Isto evidencia as vantagens de trabalhar com durações discretas e incluir covariáveis nos modelos de testes. Para avaliar previsões de ES, aqueles baseados em distribuições condicionais do retorno ao VaR mostraram um alto poder para grandes tamanhos amostrais. Adicionalmente, mostramos que o método baseado na distribuição generalizada de Pareto utilizando durações e covariáveis resulta em ótimo desempenho nas previsões de VaR e ES.
A extensão do poder constituinte estadual no STF: a jurisprudência da Corte no período militar (1964-85)
Authors: Nunes Alynne Nayara Ferreira , Schlobach Rafael Viotti
Published: January 2020

The extent of states’ constitution-making power according to the Brazilian Supreme Federal Court: case-law during the military regime (1964-85) O presente artigo objetiva examinar a jurisprudência do Supremo Tribunal Federal (STF) acerca dos limites ao poder constituinte estadual, durante o período autoritário e centralizador do regime militar (1964-85). Em seguida, pretendemos comparar os resultados com a jurisprudência atual, sob a vigência da Constituição Federal de 1988, que atribuiu maior autonomia e competências aos estados-membros, segundo a pesquisa de Schlobach (2014). Concluímos que, no período autoritário, o STF adotou jurisprudência restritiva relativa ao âmbito de atuação dos poderes constituintes, ressalvados os ministros Aliomar Baleeiro e Victor Nunes Leal, que se destacaram por ficarem vencidos e por defenderem maior autonomia aos constituintes estaduais. Ao final do regime, o STF desenvolveu argumentos para estimular o federalismo cooperativo, que, no entanto, não foi observado durante o período pós-CF/88, no qual a Corte manteve referências à jurisprudência do período militar. This article aims to examine the case-law of the Brazilian Supreme Federal Court about the limits to the constituent power of member States during the authoritarian and centralizing military regime (1964-1985). Afterwards, we compared the results with the current case-law, under the Federal Constitution of 1988, which attributed more autonomy and competences to the States, according to the research made by Schlobach (2014). We concluded that, in the authoritarian regime, the Supreme Federal Court developed a restrictive case-law about the scope of action of the States’ constituent powers, except for Justices Aliomar Baleeiro and Victor Nunes Leal, which stood out by their dissenting opinions and their defense of more autonomy to the constituent powers. At the end of the regime, the Supreme Federal Court developed arguments in favor of a cooperative federalism, which was not, however, observed after 1988, period when the Court still referred to the military regime case-law.
Condutas anticompetitivas praticadas por sites de buscas online
Authors: Vila Conselheira Polyanna Ferreira Silva
Published: January 2020

Anticompetitive Behavior by Online Search Engines
Formulação estratégica no CIEE Lisboa
Authors: Cunha Sara Las , Costa Renato Lopes da , Gonçalves Rui Alexandre Henriques
Published: January 2020

Em uma era em que o mercado está cada vez mais competitivo e globalizado, as empresas são forçadas a repensar e inovar sua estratégia. O objetivo desta investigação é averiguar se o CIEE Lisboa está a recorrer à implementação de estratégias corporativas, com o intuito de atingir seus objetivos estratégicos, ampliar sua área de atuação e aumentar seu desempenho empresarial. A metodologia utilizada neste estudo foi de caráter qualitativo e teve por base a realização de 18 entrevistas, que posteriormente foram submetidas a uma extensa análise de conteúdo. O estudo conclui que o CIEE está a implementar estratégias de diversificação que lhe permitem crescer organicamente, e que essa aposta é um dos fatores-chave para a criação de barreiras à entrada de novos concorrentes. Também é possível concluir que a formação de alianças estratégicas é um pilar vital no sucesso da empresa, podendo ter impacto positivo na satisfação dos consumidores. Por fim, a investigação mostra que, na visão dos colaboradores entrevistados, o recurso a uma fusão e/ou aquisição (F&A) não é a opção mais viável para a empresa neste momento.
Application of Near-Infrared Spectroscopy for the identification of rock mineralogy from Kos Island, Aegean Sea, Greece
Authors: Kokkaliari Maria , Iliopoulos Ioannis
Published: January 2020

Near-Infrared spectroscopy (NIR) is a useful tool for direct and on-site identification of rock mineralogy in spite of the difficulties arising in spectral evaluation, due to limited availability of spectral libraries at the time. Especially in the field, a functional methodology for the identification and evaluation if possible, of the geologic materials, is of interest to many researchers. However, several different parameters (such as grain size, color, mineralogy, texture, water content etc.) can affect the spectroscopic properties of the samples resulting in spectral variability. The subject of the present work focuses in various lithotypes (monzodiorite, diorite, altered diorite, actinolite schist, cataclasite, slate) from Kos Island, Aegean Sea, in Greece, all bearing hydrous minerals in various amounts. The evaluation of the results obtained from NIR spectroscopy offered important qualitative information about the mineralogy of the lithotypes examined. The important asset of the method is that no sample preparation was necessary. From the reflectance spectra, the NIR-active minerals that were identified include chlorite, micas, amphiboles and epidotes. Petrographic and mineralogic analyses were also employed in order to confirm the NIR results and provide more detailed information about the mineralogy of the samples, the grain size and the orientation of the minerals. Correlation of wavelength positions at ~1400 nm with loss on ignition (LOI) values led us to relate the various lithotypes in terms of their petrological affinities. NIR spectroscopy was proved to be a useful tool, especially for the mineralogic identification of rocks underwent low- to medium grade metamorphism, from greenschist to amphibolite facies.
Re-assessment of depositional conditions of Cretaceous deposits around the Amfilochia and Arta areas
Authors: Dimopoulos Nikolaos , Georgoulas Eleftherios , Peridis Savvas , Iliopoulos George , Bourli Nikolina , Antoniou Panayiota , Zelilidis Avraam
Published: January 2020

Sedimentological studies of the Cretaceous limestones in the central Ionian basin (Amfilochia, Arta as well as Kerasonas areas) indicate that these deposits are composed of calciturbidites interbedded with breccia-microbreccia deposits. In the Amfilochia new cross-section, with a NNW-SSE direction, the lower Cretaceous Vigla limestones and Vigla shales were outcropped for the first time. This section is directed parallel to the paleo Ionian basin axis and the fact of the lateral discontinuity of Vigla limestones and Vigla shales indicate that during the sedimentation of these two Formations there was a restriction along the paleo basin axis, probably due to synsedimentary transfer fault activity. Forty-two (42) samples from Vigla shales were analyzed for their content in CaCO3 and TOC, showed that these sediments present poor to fair hydrocarbon potential. In the Arta new cross-section, with a NE-SW direction, the Upper Cretaceous Senonian deposits showed strong deformation that took place during the compressional regime that affected the Ionian basin after sedimentation. This deformation appears stronger in the western part being close to a major thrust, and thus it is possible that this deformation could be responsible for the high secondary porosity of Upper Cretaceous deposits. Microfacies analysis of these deposits showed in general that deep-sea depositional environments prevailed, nevertheless in a few cases indications for the presence of environments with a shallow character imply the existence of isolated carbonate platforms close to the studied sections. In the studied sections with an E-W direction, no lateral changes were observed in the depositional conditions within the same Formation introducing standard depositional conditions across the paleo basin.
A Review of Obsidian Source Exploitation in pre-Columbian South America
Authors: Periferakis Argyrios
Published: January 2020

The focus of this paper is the obsidian quarries of the Pacific coast of pre-Columbian South America, which were exploited by the indigenous populations since ca. 11000 BC. The importance of obsidian in geoarchaeology and palaeoanthropology has already been demonstrated in sites from all around the world. In this paper, the presence of obsidian in correlation to tectonic activity and volcanism of South America is presented, along with the main sources in their regional geological context. Obsidian artefacts were the mainstay of everyday life of indigenous populations and obsidian was also used in manufacturing weapons. Despite advances in metallurgy, which were comparable with those of contemporary European states, obsidian was never supplanted by metal implements and weapons, until the Spanish conquest. Obsidian is as useful today, as it was to these civilisations, albeit in the different role, of discerning interactions between local societies, elucidating aspects of everyday life, and tracing palaeomobility and trade networks.
Reflections on the Importance of Academic Conferences
Authors: Divjak Blazenka
Published: January 2020

The following opening remarks were given by Dr. Blazenka Divjak, founder of the Central European Conference of Information and Intelligent Systems (CECIIS), University of Zagreb’s Faculty of Informatics Professor, and current Minister of Science and Education of Croatia. They constitute an interesting reflection on the value of attending academic conferences.
Species composition and structure of degraded mangrove vegetation in the Air Telang Protected Forest, South Sumatra, Indonesia
Authors: Eddy SYAIFUL , MOH. RASYID RIDHO  , ISKHAQ ISKANDAR  , ANDY MULYANA
Published: January 2020

Abstract. Eddy S, Ridho MR, Iskandar I, Mulyana A. 2019. Species composition and structure of degraded mangrove vegetation in the Air Telang Protected Forest, South Sumatra, Indonesia. Biodiversitas 20: 2119-2127. Air Telang Protected Forest (ATPF) is one of the protected forests in the coastal area of South Sumatra, Indonesia which is around 12,660.9 hectares. This area is strategic because it borders directly with the Bangka Strait and adjacent to Sembilang National Park making it easy to access by the community. Various anthropogenic activities in the region such as residential, farming, agriculture, aquaculture, port and timber harvesting have led to degradation and loss of primary mangrove forest. This study aims to analyze the species composition and community structure of mangrove vegetation in the ATPF. The data were collected through observations at several point-centered samplings which were used to analyze the species composition and community structure of the vegetation and the physicochemical conditions of the environment. The species composition of this area consists of 20 species belonging to 14 families. The dominant species of tree, sapling and seedling stages are Nypa fruticans, Rhizophora apiculata and Acrostichum aureum, respectively. Overall species diversity index in this region is classified as very low, ranging from 0.00 to 0.73. Cluster analysis showed three types of vegetation structures in this region, namely Cyperus-Acrostichum type (shrub vegetation), Acrostichum-Rhizophora type (secondary forests) and Nypa-Avicennia (primary forests).
Interaction of Arg194Trp and Arg399Gln genotypes with the risk of radiation on cancer patients
Authors: SURNIYANTORO HARRY NUGROHO EKO , NASTITI RAHAJENG  , YANTI LUSIYANTI  , TUR RAHARDJO  , DYAH ERAWATI  , LINA CHORIDAH  , WIGATI DHAMIYATI  , SRI RETNA DWIDANARTI
Published: January 2020

Abstract. Surniyantoro HNE, Rahajeng N, Lusiyanti Y, Rahardjo T, Erawati D, Choridah L, Dhamiyati W, Dwidanarti SR. 2019. Interaction of Arg194Trp and Arg399Gln genotypes with the risk of radiation on cancer patients. Biodiversitas 20: 2128-2133. Two of the common single-nucleotide polymorphisms are X-ray repair cross-complementary group 1 on exon 6 (Arg194Trp) and exon 10 (Arg399Gln). The purpose of this study was to determine the interactions between Arg194Trp and Arg399Gln genotypes combination with the risk of radiation on cancer patients in Indonesia, linked to micronuclei frequency as a biomarker of DNA damage. This study consisted of 19 patients with various cancer as the case group and 37 non-cancer participants as the control group. The determination of Arg149Trp and Arg399Gln alleles were performed using Polymerase Chain Reaction-Restriction Fragment Length Polymorphism. Micronuclei assay was performed using Cytokinesis-block micronuclei cytome assay. The results of our study showed that micronuclei frequency was very significantly higher in the cancer patients compared to controls (111.16 ± 76.24 versus 16.89 ± 9.72, p<0.0001). Patients with heterozygous mutant genotypes CT had a lower frequency of micronuclei than patients with normal CC genotypes (105.6 ± 80.97 versus 117.33 ± 74.97). Likewise, patients with mutant genotype AA had a lower frequency of micronuclei than patients with normal GG genotype (64 versus 129.71 ± 90.68). The genetic polymorphisms of Arg194Trp and Arg399Gln demonstrated an association with the level of DNA damage on cancer patients.
The Indigenous endomycorrhizal fungi at salak (Salacca zalacca) plantations in Bali, Indonesia and their colonization of the roots
Authors: RAI I Nyoman , Suada I Ketut , Proborini Meitini Wahyuni , Wiraatmaja I Wayan , SEMENOV Mikhail , Krasnov George
Published: January 2020

Abstract. Rai IN, Suada IK, Proborini M, Wiraatmaja IW, Semenov M, Krasnov G. 2019. Indigenous endomycorrhizal fungi at salak (Salacca zalacca) plantations in Bali, Indonesia and their colonization of the roots. Biodiversitas 20: 2410-2416. Cultivation of snake fruit, commonly known as salak usually done organically on dry land with limited fertilizer in Bali. This research aimed to observe and to identify the indigenous endomycorrhizal fungi on salak roots. The exploration was carried out by collecting soil and root samples in salak producing areas in Bali, i.e. Bebandem and Selat of Karangasem Regency, Payangan of Gianyar, and Pupuan of Tabanan Regency. At each location, 9 random samples were taken, resulting in a total of 36 samples. Spore extraction was carried out using a wet filtration technique followed by centrifugation according to the method by Brunndrett et al. (2009). Morphological identification was carried out at the genus and species level using the Manual for Identification of Mycorrhiza Fungi for identifying Vesicular-Arbuscular-Mycorrhiza (VAM) fungi (Schenk and Perez, 1990), while molecular identification was carried out according to Tedersoo et al. (2014). The percentage of root infections was carried out using the coloring method with trypan blue. The results showed there were only two genera of endomycorrhizae (Glomus and Entrophospora) identified at the locations of study sites. The results also showed that samples from Bebandem and Selat regions had 3 Glomus species, Payangan had 3 Glomus species and 1 Entrophospora species, while in Pupuan had only 2 Glomus species. Identification results based on morphological characters showed that all species in the genus Glomus consisted of 3 species, namely Glomus sp-1, Glomus sp-2, and Glomus sp-3, while one species in the genus Entrophospora was Entrophospora sp. Genetic identification results based on the nucleotide arrangement showed that Glomus sp-1 concluded as Glomus cubence, Glomus sp-2 concluded as Glomus custos, and Glomus sp-3 concluded as Glomus indicum, while Entrophospora species concluded as Entrophospora_sp_SH197095.06FU. The average of root colonization/ infection was very high, reaching 93.33% in Bebandem and Selat, 95.00% in Pupuan, and 100% in Payangan. The very high root infection rates indicated that the indigenous endomycorrhiza found in these areas was very adaptive in salak plantation, so there is an opportunity to be developed as biofertilizers.
Convergent evolution of sexual dimorphism in species of the family Dolichopodidae (Diptera)
Authors: Chursina Mariya Alexandrovna
Published: January 2020

Abstract. Chursina MA. 2019. Convergent evolution of sexual dimorphism in species of the family Dolichopodidae (Diptera). Biodiversitas 20: 2480-2485. In this study, we investigated patterns of sexual dimorphism in four dolichopodid species namely Dolichopus acuticornis Wiedemann, 1817, D. longicornis Stannius, 1831, Rhaphium appendiculatum Zetterstedt, 1849, and R. caliginosum Meigen, 1824 that are exhibiting similar patterns of sexual dimorphism. Although they are distantly related, males of all these species exhibit similar sexual dimorphic characters in term of elongation of postpedicel. A comparison of variation made it possible to assumed that although sexual selection acts differently, all four species exhibited similar patterns of sexual dimorphism in wings and legs; females possessed relatively widened wing and elongated fore and hind femora than males. Cluster analysis for the morphometry data demonstrated that the differences between sexes significantly exceeds the differences between species. These results may reflect the presence of some conservative genetic structure of covariation among characters.
Streptomyces spp. from rhizosphere soil of maize with potential as plant growth promoter
Authors: Wahyudi Aris Tri , Priyanto J.A. , Fijrina HANIFA NUR , Mariastuti HIMA DEWI , Nawangsih ABDJAD ASIH
Published: January 2020

Abstract. Wahyudi AT, Priyanto JA, Fijrina HN, Mariastuti HD, Nawangsih AA. 2019. Streptomyces spp. from rhizosphere soil of maize with potential as plant growth promoter. Biodiversitas 20: 2547-2553. Actinomycete is one group of rhizobacteria that plays an important role as a plant growth promoter. This study was aimed to evaluate the potential of Actinomycetes isolated from maize rhizosphere in promoting plant growth in vitro including their ability to produce IAA, promote maize sprout growth, solubilize phosphate, and grow in N-free medium. Thirty isolates have been isolated from maize rhizosphere using a spread plate method. All 30 isolates were probably not pathogenic to plants as tested by hypersensitivity reaction test on tobacco leaves. Based on the colorimetric assay, 30 isolates (100%) were able to produce IAA with concentrations ranging from 1.05 to 26.89 ppm. The highest concentration of IAA (26.89 ppm) produced by ARJ 21 and the lowest IAA concentration (1.05 ppm) produced by ARJ 12. By using the Ragdoll method, it showed that 9 isolates (30%) were able to promote maize sprout growth significantly on five growth parameters including primary root length, stem length, number of lateral roots, wet weight and dry weight. Twenty-one isolates (70%) were capable of solubilizing phosphate in Pikovskaya medium containing tricalcium phosphate. Also, 30 isolates (100%) were able to grow on N-free medium, suggesting their ability to fix nitrogen. Based on 16S-rRNA, five potential isolates with plant growth-promoting properties were highly similar to Streptomyces spp. Based on their potential characters, these Actinomycetes isolates have the potential to be further developed as a biofertilizer agent for sustainable maize farming.
Implementation of a Parenting Coordination Pilot Project in Montreal, Canada: What Did We Learn?
Authors: D’Abate Dominic A. , Cyr Francine , Quigley Catherine
Published: January 2020

For parents who experience high conflict following their separation or divorce, the various psychosocial and legal services provided by the government of Quebec or in the private sector have proven to be inadequate, resulting in an over-dependence on the court system and child protective services to provide solutions. In response to this social dilemma, the Quebec Ministry of Justice agreed in 2012 to fund a pilot project to determine if parenting coordination could provide some relief to the families and to the judicial system. A research team also had the mandate to evaluate the extent to which parenting coordination could eventually be integrated with other services being offered in both the public and private sectors. Between 2012 and 2014, ten families were followed by two parenting coordinators for a period ranging from six to 18 months. This article will present the interdisciplinary model put forward in the implementation of a parental coordination project, some highlights of the results of this pilot project and the recommendations that ensued.
High-speed 3D digital image correlation for rolling deformation of a tire sidewall and measuring dynamic contact patch length
Authors: Gao Xueliang , Zhuang Ye , Liu Shu , Fan Weiguang , Zhu Chengwei , Chen Qiang
Published: January 2020

Tires play a vital role in a vehicle’s operational stability, comfort, and security. However, due to the influence of test equipment and tire operating conditions, the perception of rolling tire characteristics is still in the stage of gradual improvement, especially the analysis of sidewall rolling deformation and dynamic contact peculiarities of tires/road interactions, which has restricted the analysis of rolling energy dissipation and the accurate observation of tire forces. In this paper, the high-speed stereo-vision system was created by high-speed cameras, and the relative rigid and flexible displacement, strain, and trajectory trend of marker points and the real-time global displacement field of the sidewall during the tire-rolling cycle were acquired utilizing the improved digital image correlation algorithm under different rolling velocities. Meanwhile, the periodic dissipation of the strain concentration region was observed, and the phenomenon of strain resonance appeared at the overlap of the periods. The relative flexibility strain and shear strain of the marker point were obtained on the plane element, which resulted in the relative flexibility major principle strain of the plane element, and then it achieved recognition of the leading and trailing points of the contact patch and the accurate measurement of dynamic contact patch length.
Simultaneous measurement of temperature and refractive index based on a hybrid surface plasmon resonance multimode interference fiber sensor
Authors: Zhang Yu , Liu Meijiang , Zhang Yaxun , Liu Zhihai , Yang Xinghua , Zhang Jianzhong , Yang Jun , Yuan Libo
Published: January 2020

We propose and demonstrate a hybrid fiber-based sensor combining a multimode interference (MMI) structure and a surface plasmon resonance (SPR) structure for simultaneous measurement of temperature and refractive index (RI) of a liquid sample. We configure the MMI structure by connecting a single-mode fiber, a no-core fiber, and a single-mode fiber sequentially. We set up the SPR structure by coating a gold film with a thickness of 50 nm on the surface of the no-core fiber. We measure the sensitivity of RI and the temperature of the MMI and SPR structure, respectively. Then we obtain the coefficient matrix to simultaneously measure the temperature and RI of a liquid sample and obtain the highest RI sensitivity of 2061.6 nm/RIU and temperature sensitivity of 37.9 pm/°C. We verify the feasibility of the sensor in liquid alcohol. The testing results indicate that the proposed sensor and testing method are feasible, accurate, and convenient.
CO2 laser thermal reflow shaped convex glass microlens array after Bessel picosecond laser inscribing and hydrofluoric acid processing
Authors: Yang Shuyu , Peng Kuang , Cao Xin , Wang Wenfeng , Chen Yong , Li Yuebin , Zhao Jiang , Li Bo
Published: January 2020

In this paper, a convex micro-glass lens array fabrication process that utilizes

C
O

2

laser thermal reflow in the Bessel picosecond laser inscribing and hydrofluoric acid processed micro-glass pillars array is presented. The Bessel picosecond laser permits high tolerance and precise micro-pillar fabrication. In the thermal reshape process, the

C
O

2

laser power, relative defocus length, and scanning velocity are three crucial parameters to the microlens array’s focal length. By using this method, microlens arrays with focal length ranging from several tens of micrometers to several hundred micrometers can be created. This research provides another way to fabricate convex micro-glass lens arrays with several hundred micrometers focal length in good utility.
Thermal accumulation effect of a three-junction GaAs cell with multipulse laser irradiation
Authors: Qi Lei , Liu Yali , Jing Hao , Xie Yanxin , Yang Xiaomin , Zhang Rongzhu
Published: January 2020

A theoretical model on accumulation of temperature and stress in a three-junction GaAs solar cell is proposed to analyze its damage characteristics while irradiated by a multipulse laser. The distribution and accumulation effect of temperature and stress with different pulse widths are calculated. Specifically, the influences of pulse energy and duty ratio on the accumulation effect are discussed. Results show that the accumulation is weakened as pulse energy and duty ratio decrease and differ with the different pulse widths. The accumulation rate of stress is more rapid than that of temperature under nanosecond laser irradiation. Furthermore, tensile stress damage is the main damage form under nanosecond laser irradiation, and melting damage will change to main damage from a millisecond laser.
Miniature high-speed, low-pulse-energy picosecond Raman spectrometer for identification of minerals and organics in planetary science
Authors: Blacksberg Jordana , Alerstam Erik , Cochrane Corey J. , Maruyama Yuki , Farmer Jack D.
Published: January 2020

The motivation behind time-resolved Raman spectroscopy for planetary surface exploration is (1) to provide comprehensive identification of minerals (nearly all rock-forming minerals and weathering products) and many organics of prime importance including fossilized carbonaceous materials; (2) to do so ensuring that it is possible to characterize even the most sensitive materials that would be altered by current state-of-the-art pulsed lasers (e.g., dark minerals, organics). These goals are accomplished here using a lightweight, high-speed (MHz) pulsed (

<

100

p
s

) Raman spectrometer based on a high-speed microchip laser combined with a single photon avalanche diode detector array. Using a Mars analog sample set and an automated grid sampling technique, we demonstrate consistent identification of major minerals and kerogen detection at

∼≥

1

%

by volume, without losses typically associated with the two biggest problems: fluorescence interference and sample damage. Despite improvements, we find that time-resolved Raman spectroscopy is still limited by the availability of a suitable laser and detector. As technology advances and such devices become available, we expect that this technique will hold an important place in Raman spectroscopy for both commercial and planetary science applications. We also discuss the utility of Raman point mapping for planetary science (e.g., in comparison with other common techniques like infrared reflectance spectroscopy) and conclude that the choice of technique must be planetary mission-specific; one must consider whether incurring the time to map single microscopic points is worthwhile, and how many points would be sufficient to gain the required information to characterize the surface.
Inverse scattering for reflection intensity phase microscopy
Authors: Matlock Alex , Sentenac Anne , Chaumet Patrick C. , Yi Ji , Tian Lei
Published: January 2020

Reflection phase imaging provides label-free, high-resolution characterization of biological samples, typically using interferometric-based techniques. Here, we investigate reflection phase microscopy from intensity-only measurements under diverse illumination. We evaluate the forward and inverse scattering model based on the first Born approximation for imaging scattering objects above a glass slide. Under this design, the measured field combines linear forward-scattering and height-dependent nonlinear back-scattering from the object that complicates object phase recovery. Using only the forward-scattering, we derive a linear inverse scattering model and evaluate this model’s validity range in simulation and experiment using a standard reflection microscope modified with a programmable light source. Our method provides enhanced contrast of thin, weakly scattering samples that complement transmission techniques. This model provides a promising development for creating simplified intensity-based reflection quantitative phase imaging systems easily adoptable for biological research.
New ℓ2 − ℓ0 algorithm for single-molecule localization microscopy
Authors: Bechensteen Arne , Blanc-Féraud Laure , Aubert Gilles
Published: January 2020

Among the many super-resolution techniques for microscopy,
single-molecule localization microscopy methods are widely used. This
technique raises the difficult question of precisely localizing
fluorophores from a blurred, under-resolved, and noisy acquisition. In
this work, we focus on the grid-based approach in the context of a
high density of fluorophores formalized by a ℓ2
least-square term and sparsity term modeled with ℓ0
pseudo-norm. We consider both the constrained formulation and the
penalized formulation. Based on recent results, we formulate the
ℓ0 pseudo-norm as a convex minimization problem. This is
done by introducing an auxiliary variable. An exact biconvex
reformulation of the ℓ2 − ℓ0 constrained and
penalized problems is proposed with a minimization algorithm. The
algorithms, named CoBic (Constrained Biconvex) and PeBic (Penalized
Biconvex) are applied to the problem of single-molecule localization
microscopy and we compare the results with other recently proposed
methods.
Predicting color matches from luminance matches
Authors: Lee Kassandra R. , Richardson Alex J. , Walowit Eric , Crognale Michael A. , Webster Michael A.
Published: January 2020

Color vision and spectral sensitivity vary among individuals with normal color vision; thus, for many applications, it is important to measure and correct for an observer’s sensitivity. Full correction would require measuring color and luminance matches and is rarely implemented. However, luminance matches (equiluminance settings) are routinely measured and simple to conduct. We modeled how well an observer’s color matches could be approximated by measuring only luminance sensitivity, since both depend on a common set of factors. We show that lens and macular pigment density and

L

/

M

cone ratios alter equiluminance settings in different ways and can therefore be estimated from the settings. In turn, the density variations can account for a large proportion of the normal variation in color matching. Thus, luminance matches may provide a simple method to at least partially predict an observer’s color matches without requiring more complex tasks or equipment.
Terahertz switching between broadband absorption and narrowband absorption
Authors: Song Zhengyong , Chen Apeng , Zhang Jiahe
Published: January 2020

A multilayer metamaterial with switchable functionalities is presented based on the phase-transition property of vanadium dioxide. When vanadium dioxide is in the metallic state, a broadband absorber is formed. Calculated results show that the combination of two absorption peaks enables absorptance more than 90% in the wide spectral range from 0.393 THz to 0.897 THz. Absorption performance is insensitive to polarization at the small incident angle and work well even at the larger incident angle. When vanadium dioxide is in the insulating state, the designed system behaves as a narrowband absorber at the frequency of 0.677 THz. This narrowband absorber shows the advantages of wide angle and polarization insensitivity due to the localized magnetic resonance. Furthermore, the influences of geometrical parameters on the performance of absorptance are discussed. The proposed switchable absorber can be used in various applications, such as selective heat emitter and solar photovoltaic field.
Spatial Goos-Hänchen and Imbert-Fedorov shifts of rotational 2-D finite energy Airy beams
Authors: Gao Mingsheng , Deng Dongmei
Published: January 2020

Expressions of Goos-Hänchen and Imbert-Fedorov shifts of rotational 2-D finite energy Airy beams are introduced in this paper. The influences of the second-order terms of the reflection coefficient on the spatial Goos-Hänchen shift (GHS) and spatial Imbert-Fedorov shift (IFS) of rotational 2-D finite energy Airy beams are theoretically and numerically investigated at the surface between air and weakly absorbing medium for the first time. It is found that the axial symmetry of the initial field of beams has huge influences on GHS and IFS and both of the GHS and IFS can be controlled by adjusting the rotation angle of the initial field distribution.
Theoretical formalism for off-normal angular coupling into selective and parity-dependent modes in a planar waveguide
Authors: Carnio B. N. , Elezzabi A. Y.
Published: January 2020

A theoretical formalism is presented to describe coupling of an electromagnetic field into the modes of a planar waveguide, where the electromagnetic field has a non-uniform transverse profile and is incident at an arbitrary angle. The theoretical approach is used to investigate coupling of a Gaussian electromagnetic field into a

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3

planar waveguide, where the calculations are shown to be in excellent agreement with finite-different time-domain simulations. This formalism is essential to phase-matched frequency-conversion waveguides based on nonlinear optical phenomena, which can rely on coupling the excitation field into selective higher-order waveguide modes of either even or odd parity.
High-efficiency AlGaN/GaN/AlGaN tunnel junction ultraviolet light-emitting diodes
Authors: Pandey A. , Shin W. J. , Gim J. , Hovden R. , Mi Z.
Published: January 2020

AlGaN is the material of choice for high-efficiency deep UV light sources, which is the only alternative technology to replace mercury lamps for water purification and disinfection. At present, however, AlGaN-based mid- and deep UV LEDs exhibit very low efficiency. Here, we report a detailed investigation of the epitaxy and characterization of LEDs utilizing an AlGaN/GaN/AlGaN tunnel junction structure, operating at

∼
265
  
nm

, which have the potential to break the efficiency bottleneck of deep UV photonics. A thin GaN layer was incorporated between

p
+

and

n
+

-AlGaN to reduce the tunneling barrier. By optimizing the thickness of the GaN layer and thickness of the top

n

-AlGaN contact layer, we demonstrate AlGaN deep UV LEDs with a maximum external quantum efficiency of 11% and wall-plug efficiency of 7.6% for direct on-wafer measurement. It is also observed that the devices exhibit severe efficiency droop under low current densities, which is explained by the low hole mobility, due to the hole hopping conduction in the Mg impurity band and the resulting electron overflow.
Analise socioambiental de uma comunidade costeira amazônica amapaense
Authors: Silva Gomes Raimunda Kelly , Ferreira Robson da Costa , Baldez de Sousa Francele Benedito
Published: January 2020

Este estudo visou compreender a percepção dos moradores da comunidade de Jaranduba, na zona costeira amazônica, arquipélago do Bailique, no Estado do Amapá, localizada a 185 km da capital do Estado (Macapá). A metodologia pautou-se em observação direta, entrevistas semiestruturadas e check list dos principais problemas ambientais. Os resultados apontam que a maioria dos investigados possuem baixos níveis de escolaridade, e as atividades de pesca e agricultura de subsistência é que garantem o sustento das famílias. Enquanto que os principais problemas socioambientais são: o lixo, o desmatamento e a erosão. Portanto, os problemas de caráter socioambiental evidenciados na comunidade, são ocasionados pela ausência de políticas públicas efetivas.
A educação ambiental como articuladora dos saberes e fazeres do mar nas escolas do campo das ilhas do litoral do Paraná
Authors: Andreoli Vanessa Marion , De Mello Lilian Medeiros
Published: January 2020

RESUMO

Compreendendo a Educação ambiental crítica como potencializadora do diálogo de saberes, da valorização e do fortalecimento comunitário, este texto traz o relato da experiência de um projeto de extensão, atualmente em curso, desenvolvido junto às comunidades das Ilhas do litoral paranaense atendidas por Escolas do Campo. Tem-se a escola como um espaço no qual é necessário criar situações que possibilitem o aprofundamento de temáticas oriundas das realidades socioambientais locais. Durante a primeira fase do projeto foi realizado um diagnóstico participativo nas nove escolas de Ensino Fundamental (de Sexto a Nono Ano) e Médio em funcionamento nas ilhas do Paraná. Foi possível identificar as principais problemáticas e interesses locais, assim como as demandas que possibilitam adequar a proposta formativa a cada realidade. Verificou-se que o professor, como mediador do processo educativo, necessita articular o currículo com a prática social dos estudantes e das comunidades. Para tanto, o projeto prevê a construção coletiva de materiais didáticos que contemplem a realidade socioambiental de cada região, assim como os saberes e fazeres locais aliados ao currículo.

Palavras Chave: Educação ambiental crítica; Educação do campo; Oceanografia socioambiental; Saberes e fazeres do mar; Formação continuada; Extensão universitária.

ABSTRACT

Understanding Critical Environmental Education as a potentiator of the dialogue of knowledge, valorization and community empowerment, this text presents the experience of an extension project, currently underway, developed with the communities of the Parana Coastal Islands served by Rural Schools. The school is understood as a space in which it is necessary to create situations that allow the deepening of themes from the local socio-environmental realities. During the first phase of the project, a participatory diagnosis was carried out in the nine elementary schools (from 6th to 9th grade) and high schools operating in the islands of Paraná. It was possible to identify the main issues and local interests, as well as the demands that make it possible to adapt the formative proposal to each reality. It was found that the teacher, as a mediator of the educational process, needs to articulate the curriculum with the social practice of students and communities. To this end, the project foresees the collective construction of didactic materials that contemplate the socio-environmental reality of each region, as well as local knowledge and practices combined with the curriculum.

Keywords: Critical environmental education; Rural education; Socioenvironmental oceanography; Knowledge and practices of the sea; Continuing formation; University extension.
World electronic signature legislation
Authors: Mason Stephen
Published: January 2020

Table of electronic signature legislation. Prepared, maintained and copyright Stephen Mason. The list of statutes below is probably not comprehensive and, although the author has tried to check the accuracy of citations and gather as much relevant information about the legislation as possible from lawyers in the jurisdictions included in this list. For obvious reasons, it is not possible to rely on the accuracy of this list, which is provided as a first point of research.