bluuebunny/crossref_metadata_2025 huggingface dataset:
Healthy or Not: A Way to Predict Ecosystem Health in GitHub
Authors: Liao Zhifang , Yi Mengjie , Wang Yan , Liu Shengzong , Liu Hui , Zhang Yan , Zhou Yun
Published: January 2019

With the development of open source community, through the interaction of developers, the collaborative development of software, and the sharing of software tools, the formation of open source software ecosystem has matured. Natural ecosystems provide ecological services on which human beings depend. Maintaining a healthy natural ecosystem is a necessity for the sustainable development of mankind. Similarly, maintaining a healthy ecosystem of open source software is also a prerequisite for the sustainable development of open source communities, such as GitHub. This paper takes GitHub as an example to analyze the health condition of open source ecosystem and, also, it is a research area in Symmetry. Firstly, the paper presents the healthy definition of GitHub open source ecosystem health and, then, according to the main components of natural ecosystem health, the paper proposes the health indicators and health indicators evaluation method. Based on the above, the GitHub ecosystem health prediction method is proposed. By analyzing the projects and data collected in GitHub, it is found that, using the proposed evaluation indicators and method, we can analyze the healthy development trend of the GitHub ecosystem and contribute to the stability of ecosystem development.
Application of the Extended HOMED (Harmonic Oscillator Model of Aromaticity) Index to Simple and Tautomeric Five-Membered Heteroaromatic Cycles with C, N, O, P, and S Atoms
Authors: Raczyńska Ewa D.
Published: January 2019

The geometry-based HOMA (Harmonic Oscillator Model of Aromaticity) descriptor, based on the reference compounds of different delocalizations of n- and π-electrons, can be applied to molecules possessing analogous bonds, e.g., only CC, only CN, only CO, etc. For compounds with different heteroatoms and a different number of CC, CX, XX, and XY bonds, its application leads to some discrepancies. For this reason, the structural descriptor was modified and the HOMED (Harmonic Oscillator Model of Electron Delocalization) index defined. In 2010, the HOMED index was parameterized for compounds with C, N and O atoms. For parametrization, the reference molecules of similar delocalizations of n- and π-electrons were employed. In this paper, the HOMED index was extended to compounds containing the CP, CS, NN, NP, PP, NO, NS, PO, and PS bonds. For geometrical optimization of all reference molecules and of all investigated heterocompounds, the same quantum–chemical method {B3LYP/6-311+G(d,p)} was used to eliminate errors of the HOMED estimation. For some tautomeric systems, the Gn methods were also employed to confirm tautomeric preferences. The extended HOMED index was applied to five-membered heterocycles, simple furan and thiophene, and their N and P derivatives as well as for tautomeric pyrrole and phosphole and their N and P derivatives. The effects of additional heteroatom(s) in the ring on the HOMED values for furan are parallel to those for thiophene. For pyrroles, aromaticity dictates the tautomeric preferences. An additional N atom in the ring only slightly affects the HOMED values for the favored and well delocalized NH tautomers. Significant changes take place for their rare CH forms. When intramolecular proton-transfer is considered for phosphole and its P derivatives, the PH tautomers seem to be favored only for 1,2,3-triphosphole/1,2,5-triphosphole and for 1,2,3,5-tetraphosphole. For other phospholes, the CH forms have smaller Gibbs energies than the PH isomers. For phosphazoles, the labile proton in the favored form is linked to the N atom. The PH forms have smaller HOMED indices than the NH tautomers but higher than the CH ones.
Neutrosophic Compound Orthogonal Neural Network and Its Applications in Neutrosophic Function Approximation
Authors: Ye Jun , Cui Wenhua
Published: January 2019

Neural networks are powerful universal approximation tools. They have been utilized for functions/data approximation, classification, pattern recognition, as well as their various applications. Uncertain or interval values result from the incompleteness of measurements, human observation and estimations in the real world. Thus, a neutrosophic number (NsN) can represent both certain and uncertain information in an indeterminate setting and imply a changeable interval depending on its indeterminate ranges. In NsN settings, however, existing interval neural networks cannot deal with uncertain problems with NsNs. Therefore, this original study proposes a neutrosophic compound orthogonal neural network (NCONN) for the first time, containing the NsN weight values, NsN input and output, and hidden layer neutrosophic neuron functions, to approximate neutrosophic functions/NsN data. In the proposed NCONN model, single input and single output neurons are the transmission notes of NsN data and hidden layer neutrosophic neurons are constructed by the compound functions of both the Chebyshev neutrosophic orthogonal polynomial and the neutrosophic sigmoid function. In addition, illustrative and actual examples are provided to verify the effectiveness and learning performance of the proposed NCONN model for approximating neutrosophic nonlinear functions and NsN data. The contribution of this study is that the proposed NCONN can handle the approximation problems of neutrosophic nonlinear functions and NsN data. However, the main advantage is that the proposed NCONN implies a simple learning algorithm, higher speed learning convergence, and higher learning accuracy in indeterminate/NsN environments.
Laplace Adomian Decomposition Method for Multi Dimensional Time Fractional Model of Navier-Stokes Equation
Authors: Mahmood Shahid , Shah Rasool , khan Hassan , Arif Muhammad
Published: January 2019

In this research paper, a hybrid method called Laplace Adomian Decomposition Method (LADM) is used for the analytical solution of the system of time fractional Navier-Stokes equation. The solution of this system can be obtained with the help of Maple software, which provide LADM algorithm for the given problem. Moreover, the results of the proposed method are compared with the exact solution of the problems, which has confirmed, that as the terms of the series increases the approximate solutions are convergent to the exact solution of each problem. The accuracy of the method is examined with help of some examples. The LADM, results have shown that, the proposed method has higher rate of convergence as compare to ADM and HPM.
Web of Things Platforms for Distance Learning Scenarios in Computer Science Disciplines: A Practical Approach
Authors: Tobarra Llanos , Robles-Gómez Antonio , Pastor Rafael , Hernández Roberto , Cano Jesús , López Daniel
Published: January 2019

Problem-based learning is a widely used learning methodology in the field of technological disciplines, especially in distance education environments. In these environments, the most used tools, which provide learning scenarios, are remote and virtual laboratories. Internet of Things (IoT) devices can be used as remote or virtual laboratories. In addition to this, they can be organized/orchestrated to build remote maker spaces through the web. These types of spaces are called the Web of Things (WoT). This paper proposes the use of these types of spaces and their integration as practical activities into the curricula of technological subjects. This approach will allow us to achieve two fundamental objectives: (1) To improve the academic results (grades) of students; and (2) to increase engagement and interest of students in the studied technologies, including IoT devices. These platforms are modeled using archetypes based on different typologies and usage scenarios. In particular, these usage scenarios will implement a learning strategy for each problem to be solved. The current work shows the evolution of these archetypes and their application in the teaching of disciplines/subjects defined in computer science, such as distributed computing and cybersecurity.
The Effects of Endophytic Beauveria bassiana Inoculation on Infestation Level of Planococcus ficus, Growth and Volatile Constituents of Potted Greenhouse Grapevine (Vitis vinifera L.)
Authors: Moloinyane Siphokazi , Nchu Felix
Published: January 2019

Endophytic entomopathogenic fungi are being explored for the management of phytophagous insect pests. The effects of Beauveria bassiana (Hypocreales) inoculation of grape plants on the infestation level of P. ficus, tissue nutrient contents, and growth and volatile constituents of potted grape plants were assessed. Grapevine plants were individually inoculated with a suspension of 1 × 108 conidia mL−1 of B. bassiana by drenching before experimentally infesting each of them with thirty adult females of P. ficus. At four weeks post-treatment, the fungus was re-isolated from leaves of 50% of the fungus-exposed plants. However, no significant difference (p > 0.05) was observed in all the plant growth parameters measured in the fungus-treated and control plants. Plant tissue analysis revealed markedly higher contents of calcium (Ca) and magnesium (Mg) in the leaf tissue of plants exposed to the B. bassiana relative to the control. Gas chromatography mass spectrometry (GC-MS) analyses showed that a significantly (X2 = 5.1; p < 0.02) higher number of known anti-insect volatile compounds (nine) were present among fungus treated plants compared to the control plants (five). Naphthalene, which is toxic to insects and humans, was detected only in the volatiles of the fungus-exposed plants. B. bassiana did not have any significant effect on total polyphenol, alkaloid, and flavonoids. Overall, treatment with fungus did not inhibit the infestation by P. ficus. In conclusion, these findings shed light on some of the mechanisms involved in endophytic fungus-plant-insect interactions.
Requirement of Cellular Protein CCT7 for the Replication of Fowl Adenovirus Serotype 4 (FAdV-4) in Leghorn Male Hepatocellular Cells Via Interaction with the Viral Hexon Protein
Authors: Gao Junfeng , Zhao Mingliang , Duan Xueyan , Wang Yongqiang , Cao Hong , Li Xiaoqi , Zheng Shijun J.
Published: January 2019

Fowl adenovirus serotype 4 (FAdV-4) causes hepatitis-hydropericardium syndrome (HHS), leading to severe economic losses in the poultry industry. Although the pathogenesis of FAdV-4 infection has caused much attention, the underlying molecular mechanisms remain poorly understood. Here, we identified chaperonin containing TCP-1 subunit eta (CCT7) as an interacting partner of the FAdV-4 capsid protein hexon. We found that ectopic expression of CCT7 in leghorn male hepatocellular (LMH) cells enhanced hexon expression in pRK5-flag-hexon transfected cells. On the contrary, knockdown of cellular CCT7 by RNAi markedly reduced hexon expression in FAdV-4-infected cells and suppressed viral replication. These data suggest that CCT7 is required for FAdV-4 replication and may serve as a potential target for controlling FAdV-4 infection.
Cell-Penetrating Mx1 Enhances Anti-Viral Resistance against Mucosal Influenza Viral Infection
Authors: Jung Hi Eun , Oh Ji Eun , Lee Heung Kyu
Published: January 2019

Dynamin-like GTPase myxovirus resistance protein 1 (Mx1) is an intracellular anti-viral protein following the activation of type I and type III interferon signaling. Mx1 inhibits viral replication by blocking the transcription of viral RNA, and a deficiency in this protein enhances susceptibility to influenza infection. Thus, Mx1 could be another efficient target of anti-influenza therapy. To test our hypothesis, we fused poly-arginine cell-penetrating peptides to the C terminus of Mx1 (Mx1-9R) and examined the anti-viral activity of Mx1-9R in vitro and in vivo. Madin-Darby Canine Kidney epithelial cells internalized the Mx1-9R within 12 h. Pre-exposure Mx1-9R treatment inhibited viral replication and viral RNA expression in infected cells. Further, intranasal administration of Mx1-9R improved the survival of mice infected with the PR8 influenza viral strain. These data support the consideration of Mx1-9R as a novel therapeutic agent against mucosal influenza virus infection.
The Role of Marek’s Disease Virus UL12 and UL29 in DNA Recombination and the Virus Lifecycle
Authors: Previdelli Renato , Bertzbach Luca , Wight Darren , Vychodil Tereza , You Yu , Arndt Sina , Kaufer Benedikt
Published: January 2019

Marek’s disease virus (MDV) is an oncogenic alphaherpesvirus that infects chickens and integrates its genome into the telomeres of latently infected cells. MDV encodes two proteins, UL12 and UL29 (ICP8), that are conserved among herpesviruses and could facilitate virus integration. The orthologues of UL12 and UL29 in herpes simplex virus 1 (HSV-1) possess exonuclease and single strand DNA-binding activity, respectively, and facilitate DNA recombination; however, the role of both proteins in the MDV lifecycle remains elusive. To determine if UL12 and/or UL29 are involved in virus replication, we abrogated their expression in the very virulent RB-1B strain. Abrogation of either UL12 or UL29 resulted in a severe impairment of virus replication. We also demonstrated that MDV UL12 can aid in single strand annealing DNA repair, using a well-established reporter cell line. Finally, we assessed the role of UL12 and UL29 in MDV integration and maintenance of the latent virus genome. We could demonstrate that knockdown of UL12 and UL29 does not interfere with the establishment or maintenance of latency. Our data therefore shed light on the role of MDV UL12 and UL29 in MDV replication, DNA repair, and maintenance of the latent virus genome.
Phage Lytic Enzymes
Authors: Briers Yves
Published: January 2019

Phage lytic enzymes are enzymes produced by bacterial viruses, either as part of their virion to facilitate bacterial infection through local peptidoglycan degradation, or as soluble proteins to induce massive cell lysis at the end of the lytic replication cycle [...]
New Method for Differentiation of Granuloviruses (Betabaculoviruses) Based on Real-Time Polymerase Chain Reaction (Real-Time PCR)
Authors: Krejmer-Rabalska Martyna , Rabalski Lukasz , Jukes Michael D. , Lobo de Souza Marlinda , Moore Sean D. , Szewczyk Boguslaw
Published: January 2019

Baculoviridae is a highly diverse family of rod-shaped viruses with double-stranded DNA. To date, almost 100 species have had their complete genomic sequences deposited in the GenBank database, a quarter of which comprises granuloviruses (GVs). Many of the genomes are sequenced using next-generation sequencing, which is currently considered the best method for characterizing new species, but it is time-consuming and expensive. Baculoviruses form a safe alternative to overused chemical pesticides and therefore there is a constant need for identifying new species that can be active components of novel biological insecticides. In this study, we have described a fast and reliable method for the detection of new and differentiation of previously analyzed granulovirus species based on a real-time polymerase chain reaction (PCR) technique with melting point curve analysis. The sequences of highly conserved baculovirus genes, such as granulin and late expression factors 8 and 9 (lef-8 and lef-9), derived from GVs available to date have been analyzed and used for degenerate primer design. The developed method was tested on a representative group of eight betabaculoviruses with comparisons of melting temperatures to allow for quick and preliminary granulovirus detection. The proposed real-time PCR procedure may be a very useful tool as an easily accessible screening method in a majority of laboratories.
Phage Reduce Stability for Regaining Infectivity during Antagonistic Coevolution with Host Bacterium
Authors: Yuan Yihui , Peng Qin , Zhang Shaowen , Liu Tingting , Yang Shuo , Yu Qiuhan , Wu Yan , Gao Meiying
Published: January 2019

The coevolution between phage and host bacterium is an important force that drives the evolution of the microbial community, yet the coevolution mechanisms have still not been well analyzed. Here, by analyzing the interaction between a Bacillus phage vB_BthS_BMBphi and its host bacterium, the coevolution mechanisms of the first-generation phage-resistant bacterial mutants and regained-infectivity phage mutants were studied. The phage-resistant bacterial mutants showed several conserved mutations as a potential reason for acquiring phage resistance, including the mutation in flagellum synthesis protein FlhA and cell wall polysaccharide synthesis protein DltC. All the phage-resistant bacterial mutants showed a deleted first transmembrane domain of the flagellum synthesis protein FlhA. Meanwhile, the regain-infectivity phage mutants all contained mutations in three baseplate-associated phage tail proteins by one nucleotide, respectively. A polymorphism analysis of the three mutant nucleotides in the wild-type phage revealed that the mutations existed before the interaction of the phage and the bacterium, while the wild-type phage could not infect the phage-resistant bacterial mutants, which might be because the synchronized mutations of the three nucleotides were essential for regaining infectivity. This study for the first time revealed that the synergism mutation of three phage baseplate-associated proteins were essential for the phages’ regained infectivity. Although the phage mutants regained infectivity, their storage stability was decreased and the infectivity against the phage-resistant bacterial mutants was reduced, suggesting the phage realized the continuation of the species by way of “dying to survive”.
Chewing the Fat: The Conserved Ability of DNA Viruses to Hijack Cellular Lipid Metabolism
Authors: Lange Philip T. , Lagunoff Michael , Tarakanova Vera L.
Published: January 2019

Viruses manipulate numerous host factors and cellular pathways to facilitate the replication of viral genomes and the production of infectious progeny. One way in which viruses interact with cells is through the utilization and exploitation of the host lipid metabolism. While it is likely that most—if not all—viruses require lipids or intermediates of lipid synthesis to replicate, many viruses also actively induce lipid metabolic pathways to sustain a favorable replication environment. From the formation of membranous replication compartments, to the generation of ATP or protein modifications, viruses exhibit differing requirements for host lipids. Thus, while the exploitation of lipid metabolism is a common replication strategy, diverse viruses employ a plethora of mechanisms to co-opt these critical cellular pathways. Here, we review recent literature regarding the exploitation of host lipids and lipid metabolism specifically by DNA viruses. Importantly, furthering the understanding of the viral requirements for host lipids may offer new targets for antiviral therapeutics and provide opportunities to repurpose the numerous FDA-approved compounds targeting lipid metabolic pathways as antiviral agents.
DNA-Protein Vaccination Strategy Does Not Protect from Challenge with African Swine Fever Virus Armenia 2007 Strain
Authors: Sunwoo Sun-Young , Pérez-Núñez Daniel , Morozov Igor , Sánchez Elena G. , Gaudreault Natasha N. , Trujillo Jessie D. , Mur Lina , Nogal Marisa , Madden Daniel , Urbaniak Kinga , Kim In Joong , Ma Wenjun , Revilla Yolanda , Richt Juergen A.
Published: January 2019

African swine fever virus (ASFV) causes high morbidity and mortality in swine (Sus scrofa), for which there is no commercially available vaccine. Recent outbreaks of the virus in Trans-Caucasus countries, Eastern Europe, Belgium and China highlight the urgent need to develop effective vaccines against ASFV. Previously, we evaluated the immunogenicity of a vaccination strategy designed to test various combinations of ASFV antigens encoded by DNA plasmids and recombinant proteins with the aim to activate both humoral and cellular immunity. Based on our previous results, the objective of this study was to test the combined DNA-protein vaccine strategy using a cocktail of the most immunogenic antigens against virulent ASFV challenge. Pigs were vaccinated three times with a cocktail that included ASFV plasmid DNA (CD2v, p72, p32, +/−p17) and recombinant proteins (p15, p35, p54, +/−p17). Three weeks after the third immunization, all pigs were challenged with the virulent ASFV Armenia 2007 strain. The results showed that vaccinated pigs were not protected from ASFV infection or disease. Compared to the non-vaccinated controls, earlier onset of clinical signs, viremia, and death were observed for the vaccinated animals following virulent ASFV challenge. ASFV induced pathology was also enhanced in the vaccinated pigs. Furthermore, while the vaccinated pigs developed antigen-specific antibodies, immunized pig sera at the time of challenge lacked the capacity to neutralize virus, and instead was observed to enhance ASFV infection in vitro. The results of this work points to a putative immune enhancement mechanism involved in ASFV pathogenesis that warrants further investigation. This pilot study provides insight for the selection of appropriate combinations of ASFV antigens for the development of a rationally-designed, safe, and efficacious vaccine for ASF.
Towards A Situated Urban Political Ecology Analysis of Packaged Drinking Water Supply
Authors: Kooy Michelle , Walter Carolin T.
Published: January 2019

The inclusion of packaged drinking water (PDW) as a potentially improved source of safe drinking water under Goal 6.1 of the Sustainable Development Goals (SDG) reflects its growing significance in cities where piped water has never been universal or safe for drinking. Using the case of PDW in Jakarta, Indonesia, we call for theorizing the politics of PDW through a situated Urban Political Ecology (UPE) analysis of the wider urban water distributions in which it is inserted. We do so in order to interrogate the unevenness of individual “choices” for securing safe drinking water, and highlight the ambiguity of PDW’s impact on inequalities in access. We first review research on PDW supply to specify how dominant theoretical approaches used for understanding PDW supply through analyses of the individual making “choices” for drinking water are power neutral, and why this matters for achieving equitable water access. We illustrate these points through a case study of PDW consumption by low income residents in Jakarta, and then identify how a situated UPE framework can help attend to the uneven societal relations shaping different socio-material conditions, within which individual “choices” for PDW are made. For Jakarta, connecting choices of the individual to power relations shaping geographies of urban water access and risk explains the rise in PDW consumption by low income residents as a situated response to the uneven exposure of poorer residents to environmental hazards. We conclude with reflections on how this can inform interventions towards more just distributions of safe drinking water.
Probabilistic Prediction Algorithm for Cycle Life of Energy Storage in Lithium Battery
Authors: Wang Xue , Gao Chunbin , Sun Meng
Published: January 2019

Lithium batteries are widely used in energy storage power systems such as hydraulic, thermal, wind and solar power stations, as well as power tools, military equipment, aerospace and other fields. The traditional fusion prediction algorithm for the cycle life of energy storage in lithium batteries combines the correlation vector machine, particle filter and autoregressive model to predict the cycle life of lithium batteries, which are subjected to many uncertainties in the prediction process and to inaccurate prediction results. In this paper, a probabilistic prediction algorithm for the cycle life of energy storage in lithium batteries is proposed. The LS-SVR prediction model was trained by a Bayesian three-layer reasoning. In the iterative prediction phase, the Monte Carlo method was used to express and manage the uncertainty and its transitivity in a multistep prediction and to predict the future trend of a lithium battery’s health status. Based on the given failure threshold, the probability distribution of the residual life was obtained by counting the number of particles passing through the threshold. The wavelet neural network was used to study the sample data of lithium batteries, and the mapping relationship between the probability distribution of the residual life of lithium batteries and the unknown values were established. According to this mapping relation and the probability distribution of the residual life of lithium batteries, the health data could be deduced and then iterated into the input of the wavelet neural network. In this way, the predicted degradation curve and the cycle life of lithium batteries could be obtained. The experimental results show that the proposed algorithm has good adaptability and high prediction efficiency and accuracy, with the mean error of 0.17 and only 1.38 seconds by average required for prediction.
Disease-related factors affecting timely lymphoma diagnosis: a qualitative study exploring patient experiences
Authors: Howell Debra A , Hart Ruth I , Smith Alexandra G , Macleod Una , Patmore Russell , Roman Eve
Published: January 2019

Background

Expediting cancer diagnosis is widely perceived as one way to improve patient outcomes. Evidence indicates that lymphoma diagnosis is often delayed, yet understanding of issues influencing this is incomplete.

Aim

To explore patients’ and their relatives’ perceptions of disease-related factors affecting time to diagnosis of Hodgkin and non-Hodgkin lymphoma.

Design and setting

Qualitative UK study involving patients with indolent and aggressive lymphomas, and their relatives, from an established population-based cohort in the north of England.

Method

Semi-structured interviews with 35 patients and 15 of their relatives. Interviews were audiorecorded and transcribed, and qualitative descriptive analysis was undertaken.

Results

Participant accounts suggest that certain features of lymphoma can impact on patients’ and healthcare providers’ (HCPs) responses to disease onset. Three characteristics stand out: disease occurrence (rare), manifestation (varied), and investigative options (often inconclusive). Interviewees described how they, and some HCPs, lacked familiarity with lymphoma, seldom considering it a likely explanation for their symptoms. Symptoms reported were highly variable, frequently non-specific, and often initially thought to be associated with various benign, self-limiting causes. Blood tests and other investigations, while frequently able to detect abnormalities, did not reliably indicate malignancy. Interviewees reported the potential for improvements among HCPs in information gathering, communication of uncertainty, and re-presentation advice for non-resolving/progressive health changes.

Conclusion

This study demonstrates the complex characteristics of lymphoma, perceived by patients as prolonging time to diagnosis, often despite significant effort by themselves, their relatives, and HCPs to expedite this process. The findings also illustrate why simple solutions to delayed diagnosis of lymphoma are lacking.
Advertising Events: Content and Semiotic Analyses of Cannes Film Festival Posters
Authors: Sel Zehra Gokce , Aktas Gurhan
Published: January 2019

The visual, textual, and symbolic elements used in printed advertising can help target markets in that these appeal to their expectations and needs. This research investigates the historical evolution of printed advertising, namely posters, for the Cannes Film Festival. It aims to understand
how the design and content of these posters have altered over time and what contextual and symbolic meanings could be derived from their analysis. To this end, the document archive of the Cannes Film Festival, one of the major international film festivals of Europe, was accessed and posters
used between 1946 and 2016 were analyzed through a reliance on content and semiotic analyses. The findings of these analyses offer insight into how marketing strategies and efforts of organizers have changed over time, from the early days of the "establishment" to the current "prominent" status
of the festival as one of the leading arts festivals in Europe. The findings also reveal that the festival has been emphasizing the visual more than the textual elements in its posters with the branding efforts progressively shifting towards the nearly exclusive reliance on visual elements
over time, especially since the year 2000 onwards. Interestingly, over time the posters have also become art pieces in their own right through contribution of visuals by various artists.
Beyond the Frame: Use of Augmented Screenings as a Visual Methodology in Critical Event Studies
Authors: Lamond Ian R. , Agar Laura
Published: January 2019

Disrupt is an ongoing project exploring methodologies appropriate to critical perspectives in event studies, suitable for researching activism, protest, and events of dissent. This article considers the use of augmented film screenings, which combine cinematic presentation with
nonfilm/live elements and panel-led discussions, as one of the approaches trialed as part of the project. Rooted in techniques based in photo and video elicitation, while incorporating aspects of the use of film to educate, stimulate, and provoke radical debate, employed by Latin American
activists since the 1960s, the augmented screening approach explored in this article formulates an innovative approach in evental visual research methodology. Going further than photo and video elicitation, it combined film with live disruptive elements in the attendee experience to legitimize
participant engagement with narratives that challenge the dominant hegemonic discourses in which we act and interact. In conclusion we consider some of the limitations and opportunities of evental research methods that use film as a key element within a framework anchored in a visual elicitation
approach.
IMPACT OF ROAD MAINTENANCE SALTS ON WATER ECOSYSTEMS ACCORDING TO DIATOM FLORA INVESTIGATION
Authors: Oškinis Vytautas , Kasperovičius Tomas
Published: January 2019

Road maintenance chlorides have a negative environmental impact. Chemical solutions of melting snow inevitably get into the soil and change its chemical composition. They also get into ponds. Five water basins in Vilnius city, at 5–80 m from roads, were chosen for investigation. The highest chloride concentrations were established by roads where winter road maintenance is performance at the highest level. The hydrophysical and chemical parameters of the investigated lakes depend on anthropogenic processes. Diatoms were used as indicators for reconstruction of the paleo‐ecological history of the lakes. They respond sensitively to changes in lake water salinity. The total number of 35 indifferentic‐halophilic species from all the 78 diatom taxa were identified in the lake bottom sediments. Fluctuations of their abundance could be caused by the impact of salts in different periods stimulating the productivity of indifferentic‐halophilic specie
EXPERIMENTAL INVESTIGATION OF PARTICLE CONCENTRATION USING MASS AND OPTICAL METHODS
Authors: Baltrenas Pranas , Kvasauskas Mindaugas
Published: January 2019

Devices of various design and measuring methods are applied for determining particle matter (PM) concentration. Therefore, it is important to know measuring precision of different measuring devices. Measurements were carried out by a recognized and widely used mass as well as the optical method. Materials commonly occurring in technological processes were used for investigation: particles of wood, cement, quartz sand and metal from polishing processes, clay and charcoal particles. Besides, the concentration of PM at one of the most bustling crossroads of Vilnius city was measured to estimate and compare the results of the mentioned methods and evaluate their suitability for measuring very low concentrations of PM. Measuring results of PM concentration are compared and estimated in this work, and coefficients, showing measuring differences among different devices and methods, are given and measuring errors are rated.
APPLICATION OF VOLATILE ADSORPTION PROCESS TO TIRE COMPONENT STOCK PREPARATION TECHNOLOGY EMPLOYING AIR-STEAM BED CONVEYOR TRANSPORT
Authors: Syritsyn Leonid , Vlasov Genadij , Tchemerinski Viatcheslav
Published: January 2019

The paper describes technical and environmental aspects of hardware implementation of air‐steam bed conveyor system aimed at creating a pollution‐free zone at the stock preparation department of a tire factory. The approach presented will facilitate volatile compound adsorption into the air‐steam space from an adhesive film formed by assembling solution on the tread surface. A model of saturated adsorbent desorption, with electric contact heat applied, is developed. The results of mathematical modeling of assembling solution‐volatile matter adsorption are presented.
REDUCTION OF NOX CONCENTRATIONS IN BOILER FLUE GAS BY INJECTING SELECTIVE REAGENTS
Authors: Buinevičius Kestutis , Puida Egidijus
Published: January 2019

Present EU regulations promote search for efficient means of reducing environmental pollution caused by fuel‐burning equipment. Primary means of NOx reduction are of a limited efficiency. The aim of this study is investigation and development of Selective Non‐Catalytic Reduction (SNCR) for NOx Control. This method can be applied in the existing boilers that have no external flue gas cleaning equipment, and that is the main advantage of the method. Experimental investigation of the influence of various reagent solutions on NOx concentration was carried out in a stand simulating a boiler furnace. Reagents and their operation conditions were selected, desirable efficiency of SNCR method was determined. The experimental results indicated positive application perspectives of this method. Reduction of NOx concentration by 40 % was reached. It was determined that improperly selected SNCR technology can even increase NOx concentration.
REMEDIATION TECHNOLOGIES FOR SOILS CONTAMINATED WITH HEAVY METALS
Authors: Jankaite Audrone , Vasarevičius Saulius
Published: January 2019

Heavy metals, such as lead, chromium, zinc, cadmium and cooper may cause hazardous harm to human health and the environment because of their dissolubility and mobility. Selection of the most appropriate soil remediation method depends on site characteristics, concentration, types of pollutants to be removed and the final use of a contaminated medium. This paper reviews soil remediation technologies, such as isolation and containment, solidification/ stabilization technologies, soil washing and flushing technologies, electrokinetics and phytoremediation.
INVESTIGATION INTO BIOLOGICAL NUTRIENT REMOVAL FROM WASTEWATER
Authors: Vaboliene Giedre , Matuzevičius Algirdas Bronislovas
Published: January 2019

Nitrogen and phosphorus removal is necessary to avoid eutrophication of water bodies when treated wastewater is outlet to slowly flowing water bodies or recycled as technological water. The “BioBalance” technology as the latest way of nitrogen and phosphorus removal was applied at Utena Wastewater Treatment Plant. Composition of wastewater has an impact on biological phosphorus removal, particularly the ratio of biochemical oxygen demand and total phosphorus (BOD7/Total-P) in wastewater after mechanical treatment. Nitrates in the anaerobic zone can have a negative effect on biological phosphorus removal. Consequently, it is necessary to evaluate the impact of the mentioned factors on biological nitrogen and phosphorus removal.

Biological nitrogen and phosphorus removal was evaluated and compared by using the “BioBalance” technology for biological nitrogen and phosphorus removal and technology before reconstruction during this investigation. The correlation regressive analysis of the biochemical oxygen demand and total phosphorus (BOD7/Total‐P) after mechanical treatment and the total phosphorus concentration in the effluent was evaluated. The correlation regressive analysis of nitrates in an anaerobic zone on the aeration tank and the efficiency of phosphorus removal was also evaluated.
REMOVAL OF PETROLEUM PRODUCTS FROM WATER USING NATURAL SORBENT ZEOLITE
Authors: Mažeikiene Aušra , Rimeika Mindaugas , Valentukevičiene Marina , Oškinis Vytautas , Paškauskaite Neringa , Brannvall Evelina
Published: January 2019

An experimental investigation on the removal of petroleum products (PP) from wastewater by natural sorbent zeolite was carried out in a laboratory on a pilot‐scaled test bench. The pilot test bench consisted of: a tank in which gasoline (1 portion) and diesel (1 portion) were mixed mechanically with water; a pump for supplying the mixture to a filter model; a filter model filled with a zeolite layer of 0,2 m height. Zeolite used in this study was from a deposit near the village of Sokyrnytsa in the Ukrainian Transcarpathian region. The test zeolite particle size was 2,5–3,0 mm; 1,5–2,0 mm; 0,63–1,0 mm. The concentration of PP in water was measured before and after the filter every hour. The TOG/ TPH analyser was used for concentration measurements. The experimental study showed that the best adsorption results were reached in the filter with 0,63–1,0 mm particle size of zeolite media. There were 2,25 mg/1 of light hydrocarbons left in the filtrate. Such a concentration satisfies the requirements of standards regulating the percentage of PP in treated wastewater.
Transiting Exoplanet Monitoring Project (TEMP). V. Transit Follow Up for HAT-P-9b, HAT-P-32b, and HAT-P-36b
Authors: Wang Yong-Hao , Wang Songhu , Hinse Tobias C. , Wu Zhen-Yu , Davis Allen B. , Hori Yasunori , Yoon Joh-Na , Han Wonyong , Nie Jun-Dan , Liu Hui-Gen , Zhang Hui , Zhou Ji-Lin , Wittenmyer R. A. , Peng Xi-Yan , Laughlin Gregory
Published: January 2019

During the past five years, 6, 7, and 26 transit observations were carried out for the HAT-P-9b, HAT-P-32b, and HAT-P-36b systems, respectively, through the Transiting Exoplanet Monitoring Project network. Combined with the published photometric data and radial-velocity measurements, our new photometry allows us to revisit the system parameters and search for additional close-in planetary companions in these hot Jupiter systems. We measure an updated R

P
/R
* = 0.1260 ± 0.0011 for HAT-P-36 system in the R band, which is 4.5σ larger than the published i-band radius ratio of 0.1186 ± 0.0012. We also perform a transit timing variation (TTV) analysis for each system. Because no significant TTVs were found, we place an upper mass limit on an additional planet for each system.
The Arecibo Pisces–Perseus Supercluster Survey. I. Harvesting ALFALFA
Authors: O’Donoghue Aileen A. , Haynes Martha P. , Koopmann Rebecca A. , Jones Michael G. , Giovanelli Riccardo , Balonek Thomas J. , Craig David W. , Hallenbeck Gregory L. , Hoffman G. Lyle , Kornreich David A. , Leisman Lukas , Miller Jeffrey R.
Published: January 2019

We report a multi-objective campaign of targeted 21 cm H i line observations of sources selected from the Arecibo Legacy Fast Arecibo L-band Feed Array (ALFALFA) survey and galaxies identified by their morphological and photometric properties in the Sloan Digital Sky Survey. The aims of this program have been (1) to confirm the reality of some ALFALFA sources whose enigmatic nature suggest additional multiwavelength observations; (2) to probe the low signal-to-noise ratio (S/N) regime, below the ALFALFA reliability limit; and (3) to explore the feasibility of using optical morphology, color, and surface brightness to identify gas-rich objects in the region of the Pisces–Perseus Supercluster (PPS) whose H i fluxes are below the ALFALFA sensitivity limit at that distance. As expected, the reliability of ALFALFA detections depends strongly on the S/N of the H i line signal and its coincidence with a probable stellar counterpart identified by its optical properties, suggestive of ongoing star formation. The identification of low-mass, star-forming populations enables targeted H i line observations to detect galaxies with H i line fluxes below the ALFALFA sensitivity limits in fixed local volumes (D < 100 Mpc). The method explored here serves as the basis for extending the sample of gas-bearing objects as part of the ongoing Arecibo Pisces–Perseus Supercluster Survey (APPSS).
Optical Spectroscopic Survey of a Sample of Unidentified Fermi Objects: II
Authors: Paiano Simona , Falomo Renato , Treves Aldo , Franceschini Alberto , Scarpa Riccardo
Published: January 2019

We report on optical spectroscopy obtained at the 10.4 m Gran Telescopio Canarias of 28 Fermi γ-ray sources that completes the study of a sample of 60 targets of unidentified objects for which the detection of an X-ray and/or radio source inside the 3FGL error box is available. The observations aim to characterize the nature and measure the redshift of these sources. For all optical counterparts, the observations allow us to establish their active galactic nucleus nature. In particular, we found 24 BL Lac objects, one quasar, one narrow line Seyfert 1, and two objects showing spectral features typical of Seyfert 2 galaxies. For most of these, we determine a spectroscopic redshift, while for five we can set lower limits based on the lack of stellar features from the host galaxy. The global properties of the full sample are briefly discussed.
Signature of r-mode Gravitational-wave Emission in the X-Ray Afterglow of Short GRB 090510
Authors: Lin Jie , Lu Rui-Jing
Published: January 2019

The X-ray plateaus observed in the afterglows of some short gamma-ray bursts (GRBs) are usually interpreted as the contribution from newborn magnetars with magnetic dipole radiation. However, Fan et al. re-examined that interpretation and found that a rapidly rotating magnetar might lose most of the angular momentum to gravitational waves because the total energy released within the X-ray plateau phases in some short GRBs was much smaller than that expected in the magnetar model, which indicates that the signal of gravitational-wave radiation (GWR) might have already existed in current electromagnetic data of short GRBs. In addition, theoretical analysis also showed that the rotational energy of newborn magnetars was carried away via GWR, which was more efficient than magnetic dipole radiation and the shape of the light curve of GRB can be adjusted from the magnetar model merely by considering magnetic dipole radiation. With this motivation, we investigate the X-ray light curve of GRB 090510 in detail and find that the X-ray light curve can be well fit with a magnetar model supposing that the spin evolution of the magnetar is governed by both gravitational radiation generated by unstable r-mode oscillations at early-time and magnetic dipole radiation dominating late-time spin-down evolution. This result suggests that the r-mode instability is likely to play an important role in the evolution of the post-merger remnant. We also discuss the detectability of the r-mode GWR emitted by the long-lived remnant of GRB 090510.
The Induced Surface Tension Contribution for the Equation of State of Neutron Stars
Authors: Sagun Violetta V. , Lopes Ilídio , Ivanytskyi Aleksei I.
Published: January 2019

We apply a novel equation of state (EoS) that includes the surface tension contribution induced by interparticle interaction and asymmetry between neutrons and protons, to the study of neutron star (NS) properties. This elaborated EoS is obtained from the virial expansion applied to multicomponent particle mixtures with hard core repulsion. The considered model is in full concordance with all the known properties of normal nuclear matter, provides a high-quality description of the proton flow constraints, hadron multiplicities created during the nuclear–nuclear collision experiments, and equally is consistent with astrophysical data coming from NS observations. The analysis suggests that the best model parameterization gives the incompressibility factor K
0, symmetry energy J, and symmetry energy slope L at normal nuclear density equal to 200 MeV, 30 MeV, and 113.28–114.91 MeV, respectively. The mass–radius relations found for NSs computed with this EoS are consistent with astrophysical observations.
METAL: The Metal Evolution, Transport, and Abundance in the Large Magellanic Cloud Hubble Program. I. Overview and Initial Results
Authors: Roman-Duval Julia , Jenkins Edward B. , Williams Benjamin , Tchernyshyov Kirill , Gordon Karl , Meixner Margaret , Hagen Lea , Peek Joshua , Sandstrom Karin , Werk Jessica , Merica-Jones Petia Yanchulova
Published: January 2019

Metal Evolution, Transport, and Abundance in the LMC (METAL) is a large Cycle 24 program on the Hubble Space Telescope aimed at measuring dust extinction properties and interstellar depletions in the Large Magellanic Cloud (LMC) at half-solar metallicity. The 101-orbit program is composed of Cosmic Origins Spectrograph and Space Telescope Imaging Spectrograph spectroscopy toward 33 LMC massive stars between 1150 and 3180 Å and parallel Wide Field Camera 3 imaging in seven near-UV to near-IR filters. The fraction of silicon in the gas phase (depletion) obtained from the spectroscopy decreases with increasing hydrogen column density. Depletion patterns for silicon differ between the Milky Way, LMC, and SMC, with the silicon depletion level offsetting almost exactly the metallicity differences, leading to constant gas-phase abundances in those galaxies for a given hydrogen column density. The silicon depletion correlates linearly with the absolute-to-selective extinction, R

V
, indicating a link between gas depletion and dust grain size. Extinction maps are derived from the resolved stellar photometry in the parallel imaging, which can be compared to far-IR images from Herschel and Spitzer to estimate the emissivity of dust at LMC metallicity. The full METAL sample of depletions, UV extinction curves, and extinction maps will inform the abundance, size, composition, and optical properties of dust grains in the LMC, comprehensively improve our understanding of dust properties, and improve the accuracy with which dust-based gas masses, star formation rates, and star formation histories in nearby and high-redshift galaxies are estimated. This overview paper describes the goals, design, data reduction, and initial results of the METAL survey.
Evolution of Star-forming Galaxies from z = 0.7 to 1.2 with eBOSS Emission-line Galaxies
Authors: Guo Hong , Yang Xiaohu , Raichoor Anand , Zheng Zheng , Comparat Johan , Gonzalez-Perez V. , Kneib Jean-Paul , Schneider Donald P. , Bizyaev Dmitry , Oravetz Daniel , Oravetz Audrey , Pan Kaike
Published: January 2019

We study the evolution of star-forming galaxies with

over the redshift range of 0.7 < z < 1.2 using the emission-line galaxies (ELGs) in the extended Baryon Oscillation Spectroscopic Survey (eBOSS). By applying the incomplete conditional stellar mass function (SMF) model proposed in Guo et al., we simultaneously constrain the sample completeness, the stellar–halo mass relation (SHMR), and the quenched galaxy fraction. We obtain the intrinsic SMFs for star-forming galaxies in the redshift bins of 0.7 < z < 0.8, 0.8 < z < 0.9, 0.9 < z < 1.0, and 1.0 < z < 1.2, as well as the SMF for all galaxies in the redshift bin of 0.7 < z < 0.8. We find that the eBOSS ELG sample only selects about 1%–10% of the star-forming galaxy population at the different redshifts, with the lower redshift samples more complete. There is only weak evolution in the SHMR of the ELGs from z = 1.2 to z = 0.7, as well as the intrinsic galaxy SMFs. Our best-fitting models show that the central ELGs at these redshifts live in halos of mass M ∼ 1012
M
⊙, while the satellite ELGs occupy slightly more massive halos of M ∼ 1012.6
M
⊙. The average satellite fraction of the observed ELGs varies from 13% to 17%, with the galaxy bias increasing from 1.1 to 1.4 from z = 0.7 to 1.2.