bluuebunny/crossref_metadata_2025_split huggingface dataset:
Phosphorus Sorption and Sedimentation in a Multipond System within a Headstream Agricultural Watershed
Authors: Liu Yang , Fu Qiang , Yin Chengqing 
Published: May 2018

Abstract
The movement, transformation, and assimilation of phosphorus (P) in a watershed are often related to the physicochemical characteristics of the sediments of the water storage structures in the watershed. Field and laboratory experiments were conducted to study P sorption by pond sediments in a multipond system in a watershed of 6.9 km2 in southeastern China. Being scattered in different ambient land uses, and receiving soil particles from various sources, the multipond system provides an excellent research example for P sorption as well as the relationship between pond properties and their location in a watershed. It was found that the pond sediments showed largely variable P sorption capacities in this watershed. The P sorption maximum (Smax) ranged from 390.0 to 729.2 mg/kg, and equilibrium P concentration (EPC0) ranged from 0.007 to 0.023 mg/L. The mean degree of P saturation (DPS) of the pond sediments was only 9.5%. Due to the large annual delivery of sediments to the ponds by soil erosion, the pond sediments never reached saturation. The location of the ponds could influence the physicochemical properties of sediments and their sorption characteristics. For Smax, the Hill pond value was significantly higher than that for the Village pond. For EPC0, the result was reverse. The oxalate-extractable Fe (Ox-Fe) and KCl-extractable P (KCl-P) were the key factors that influenced P sorption of the pond sediments. Ox-Fe could explain 84% of the variability in Smax and KCl-P could explain 82% of the variability in EPC0. The acidic and high Fe contents of laterite soil in southeastern China was the most important cause of the high P sorption capacity of the pond sediments.
Perfluorinated Alkyl Acid Concentrations in Canadian Rivers and Creeks
Authors: Scott Brian F. , Spencer Christine , Lopez Emma , Muir Derek C.G. 
Published: May 2018

Abstract
Perfluorinated alkyl acids (PFAs) belong to a family of chemicals that are highly persistent and potentially ecotoxic. They are under scrutiny by government agencies who must determine their risk to humans and the environment. Numerous studies have measured perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) in selected areas of the world, but there has been no systematic cross-Canada study of these compounds in surface waters. This report describes the concentrations of PFAs in 38 rivers across Canada (42 to 60°N and 62 to 136°W). Samples were collected upstream and downstream of populated areas. PFOS and PFOA were the predominant PFAs detected. Values of PFOS ranged from &lt;0.020 to 34.6 ng/L and PFOA ranged from 0.044 to 9.9 ng/L. Highest concentrations occurred in areas of high population densities, generally at downstream sites. The shorter chain perfluorocarboxylates (PFCAs) (C6)to C9) were present in most samples but the longer chain PFCAs (C10 to C14) were not often detected. Perfluorohexane sulfonate was the next most frequently detected perfluoroalkylsulfonate while perfluoro-1-octanesulfonamide (PFOSA) was detected infrequently.
The Effects of Final Treated Effluent and In-Mill Waste Streams from a Canadian Thermomechanical Pulp and Paper Mill on Mummichog (Fundulus heteroclitus) Reproduction
Authors: Bosker Thijs , Hewitt L. Mark , Munkittrick Kelly R. , Melvin Steven D. , MacLatchy Deborah L. 
Published: May 2018

Abstract
The effect on fish reproduction of final treated effluent from a thermomechanical pulp mill in Saint John, New Brunswick, Canada, was studied using mummichog (Fundulus heteroclitus), an endemic fish species of the Atlantic coast of North America. A 1997 artificial stream study at the same mill showed a reduction in gonad sizes in mummichog after a 28-day exposure to 3% final treated effluent. In 2005, we reevaluated final treated effluent, and conducted a toxicity source evaluation to identity waste stream sources within the mill that may cause reproductive effects. Relative to reference, no significant differences in gonad size, plasma levels of gonadal sex steroids, egg production, or stage of egg development were observed in fish exposed to 1, 3, 10, 30, and 100% final treated effluent or in-mill waste streams. Unlike the previous study in 1997, these data indicate a low potential for an effect of final effluent on fish reproduction. Since the 1997 study there were no major process changes that could explain the differences in the results. However, there was high variability in gonad size, egg production, and endocrine endpoints measured in the more recent test, which resulted in low power to detect differences. This has prompted research to refine the current reproductive test by optimizing study design.
Caractérisation et traitement physico-chimique des lixiviats de la décharge publique d'El-Kerma (Algérie) par adsorption en discontinu sur de la sciure de bois naturelle et activée chimiquement
Authors: Bennama Tahar , Younsi Abdelkader , Derriche Zoubir , Debab et Abdelkader 
Published: May 2018

Abstract
La décharge publique d'El-Kerma d'Oran (Ouest algérien) constitue un exemple type de détérioration des ressources naturelles en eau par les déchets solides. Elle génére des volumes importants de lixiviats á forte charge polluante (CE extrême de 130 mS/cm et DCO extrême de 28000 mg d'O2/L), dont le traitement s'impose. Le traitement physico-chimique des lixiviats de cette décharge par adsorption en discontinu de la matiére organique sur de la sciure de bois activée á la soude 3 N (SB3), de masse optimale de 0,3 g, á un temps d'équilibre de 40 min, á pH 11,0 et á une température de 55°C, a donné une capacité maximale d'adsorption de 100 mg/g, selon le modéle de Langmuir. Cette adsorption est endothermique et s'effectue á une cinétique rapide et du premier ordre. Les essais de traitement successif des lixiviats bruts effectués sur une série de cinq réacteurs ont permis de réaliser un taux d'abattement de la matiére organique de 98 % sur la sciure SB3 et dés á la sortie du troisiéme réacteur. Le matériau adsorbant utilisé a montré une efficacité comparable á celle d'autres matériaux largement utilisés dans l'épuration des effluents.
Reproductive Steroid Responses in Fish Exposed to Pulp Mill Condensates: An Investigation of Cause Case Study
Authors: MacLatchy Deborah L. , Milestone Craig , Shaughnessy Kevin S. , Belknap Andrew M. , Dubé Monique G. , Hewitt L. Mark 
Published: May 2018

Abstract
An investigation of cause (IOC) approach integrating artificial stream exposures and laboratory bioassays has been used to identify waste stream sources of contaminants at the Irving Pulp & Paper Ltd. mill, in Saint John, New Brunswick, Canada. Chemical recovery condensates have shown the greatest potential for reducing circulating steroids in mummichog (Fundulus heteroclitus), an endemic fish species. A solid phase extraction (SPE) technique was developed to isolate hormonally active substances from the condensates, and a toxicity identification evaluation approach was used to gain a better understanding of the chemical characteristics of the active substances. Extracts were fractionated by high performance liquid chromatography (HPLC) and the fractions were used in a seven-day bioassay. Dose-response experiments indicated that steroid reductions in male mummichog were observed consistently after a 4% (vol/vol) exposure. At 4% (vol/vol), however, steroid reductions were not observed in fractions of the active SPE extract generated by HPLC. Some fractions actually induced increases in plasma testosterone. Recent work has focused on understanding what methodologies must be used to handle the semivolatile condensates to ensure 100% chemical recovery and retention of biological activity. Results are summarized in the context of developing an industry-wide IOC framework.
Responses in a Fathead Minnow (Pimephales promelas) Lifecycle Test and in Wild White Sucker (Catostomus commersoni) Exposed to a Canadian Bleached Kraft Mill Effluent
Authors: Parrott Joanne L. , Hewitt L. Mark , Kovacs Tibor G. , MacLatchy Deborah L. , Martel Pierre H. , van den Heuvel Michael R. , Van Der Kraak Glen J. , McMaster Mark E. 
Published: May 2018

Abstract
To evaluate currently available bioassays for their use in investigating the causes of pulp and paper mill effluent effects on fish reproduction, the responses of wild white sucker (Catostomus commersoni) collected from the receiving environment at the bleached kraft mill at La Tuque, Quebec, were compared with responses of fathead minnow (Pimephales promelas) exposed to effluent in a laboratory lifecycle test. White sucker collected at effluent exposed sites had increased liver size but none of the reproductive effects that had been documented in earlier field studies at this site. Exposure to 1, 3, 10, 30, and 100% bleached kraft mill effluent (BKME) in the lab led to significantly decreased length, but increased weight and liver size in male fathead minnow. Female length was also decreased and liver size was increased at high effluent exposures. Most effluent concentrations (1 to 30%) significantly increased egg production compared with controls. The fathead minnow lifecycle assay mirrored the effects seen in wild fish captured downstream of the BKME discharge. These results will be used to select short-term fish tests for investigating the causes of and solutions to the effects of mill effluents on fish reproduction.
Physiological Health of Common Bully (Gobiomorphus cotidianus) in the Tarawera and Rangitaiki Rivers of New Zealand: Evidence of Diminished Ecological Effects of Pulp and Paper Effluents in Wild Fish Populations
Authors: Landman Michael J. , Bleackley Natalie A. , Ling Nicholas , van den Heuvel Michael R. 
Published: May 2018

Abstract
This study examined the comparative physiological health of the endemic New Zealand common bully (Gobiomorphus cotidianus) in the Tarawera and Rangitaiki Rivers. Bully were sampled downstream of pulp and paper effluent inputs in the Tarawera River and compared with a similar inland population in the Rangitaiki River. Condition factor and liver somatic index did not differ between populations, but Tarawera River bullies possessed larger gonads. Haematological assessments found smaller erythrocytes with reduced haemoglobin content, and increased leukocyte concentrations in Tarawera River females. Male and female Tarawera River bullies had significantly induced hepatic ethoxyresorufin-O-deethylase (EROD) activity. Greater ovarian follicular steroid production was also found for Tarawera River females. Microscopic analysis of ovarian tissue samples found no histopathological abnormalities in either population and indicated a slightly advanced vitellogenic stage of development in the Tarawera River population. It is concluded that the difference in steroid production between populations was most likely linked to gonad size and developmental status. In line with the disappearance of physiological effects in recent controlled laboratory and mesocosm pulp and paper effluent exposures, this study further demonstrates that, with the exception of EROD induction, characteristic pulp and paper effluent effects are not obvious in wild Tarawera fish.
The Evolution of Pulp and Paper Mill Effluent Effects Knowledge and Issues - A Career-Based Retrospective
Authors: Hall Timothy J. , Borton Dennis L 
Published: May 2018

Abstract
The two recently retired authors have a combined career experience of over 65 years in carrying out research directed at assessing effluent effects on marine and freshwater receiving waters. As such, their work directed at the environmental information needs of the forest products industry has represented a continually evolving research program. This paper reflects a history of issues and progress on pulp and paper mill effluent research before their careers began, the progression of issues and research during their careers, how questions have changed and evolved, and also looks forward to the remaining questions that need to be addressed concerning effluent effects.
Microbial and Physico-Chemical Characteristics of Surface Water Sources Used on Dairy Farms in Ontario
Authors: Masse, Lucie , Massé Daniel I. , Topp Edward , Séguin Guy , Scott Andrew , Ortega Lina M. , Pariseau Éric 
Published: May 2018

Abstract
Six surface water sources used to wash milking equipment and provide drinking water to the animals on dairy farms in Eastern Ontario were characterized for microbial and physico-chemical characteristics over a 16 month period. The water sources were selected because they had a history of microbial contamination and presented a wide selection of physico-chemical characteristics. Results are discussed with respect to available on-site disinfection technologies. Total and fecal coliforms were detected in over 90% of all water samples, Escherichia coli and Enterococcus spp. in 77%, Clostridium perfringens and Yersinia enterocolitica in about 50%, Campylobacter spp. in 36%, and Salmonella in 25%. For all pathogens, counts were highly variable, and maximum values were 1 to 2 orders of magnitude higher than the medians. On-site disinfection systems will have to be designed to deactivate the highest count of pathogens, thereby providing a conservative safety margin for most of the year. Disinfection technologies will also have to be selected based on physico-chemical characteristics of the water sources, especially the level of hardness, turbidity and UV transmittance which can adversely affect their efficiency. On some farms, a pretreatment such as coagulation flocculation will be necessary to make the surface water suitable for low-cost disinfection technologies.
Colour Removal and the Effect of Reactive Dyes on Growth Substrate Utilization by an Unacclimated Ethanol-Enriched Anaerobic Culture
Authors: Bhattacharyya Debraj , Singh Kripa S. 
Published: May 2018

Abstract
The cultures from an ethanol-enriched anaerobic master culture reactor were dosed with 0, 50, 100, 200, 400, 800, and 1600 mg/L of a mixture of three Procion reactive dyes: Red MX-8B, Red MX-5B, and Orange MX-2R, in order to study the colour removal and the inhibitory effect of dyes on the methanogenic degradation of ethanol that was added as a cosubstrate. The reduction in colour intensity, measured at 514 nm, was found to be similar to a trial using an inactivated culture. These results indicate that removal of colour by the unacclimated anaerobic population is due to adsorption of the dyes on the biomass. The dyes caused a competitive inhibition at doses above 200 mg/L on utilization of ethanol by the anaerobic bacteria.
Генотип-средовое взаимодействие: молекулярно-генетический подход к изучению волевого контроля в период беременности
Authors: Чистякова Наталья Викторовна , Сергиенко Елена Алексеевна 
Published: May 2018

The adaptive ability of organism to be changed environmentally throughout the lifespan requires the plasticity of link between a genotype and a phenotype. The genotype/environment dyad determines an adaptive profile of a phenotype and functional potentialof its plasticity. By the regulation of gene expression, the environment influences the genotype and determines phenotypic variability, which is adaptive by nature. Therefore, the need for the integrative study of genotype-environment interaction and its prospects becomes clear in order to obtain objective and comprehensive data about the true nature of individual differences in psychological features. Using this approach, heterogeneous etiology of volitional control differences among women in the third trimester of gestation was assessed. Identification of pregnancy-specific molecular and genetic predictorsof the volitional control allows defining its role in the psychological readiness of women for childbirth.
Религиозная одержимость как предмет психологического анализа: постановка проблемы
Authors: Гримсолтанова Разет Эльбрусовна 
Published: May 2018

The article considers features of the possession concept interpretations in the context of the most authoritative world religions (Islam, Christianity, Judaism), interrelation of a religious explanation and scientific grounds of the possession phenomenon. We consider the concept of possession from the point of view of psychiatry and analyze the subject inpsychology.
Социально-психологические особенности отношения к другим людям и отношения к городу жителей мегаполиса, большого и малого городов
Authors: Балакина Анна Андреевна 
Published: May 2018

This article analyzes the significant differences of expression of social andpsychological needs, the parameters of relationships with other people, components relation to the city of inhabitants of metropolis, large and small cities. This article describes the features of relationships with other people and relation to the city of urban residents ofdifferent types due to spatial and temporal parameters of living in it. The article shows the interrelation of expression of social and psychological needs, options and other types of relationships to other people with the emotional and cognitive (the image of the city, the presence/ absence of identification with the city) components to the city.The article also shows that the image of the city, the urban identity of the inhabitants of the cities due to the type, spatial and temporal parameters of living and associated with a number of social and psychological needs, options, and types of relationships toother people.
Коммуникативный ресурс как акмеологический фактор профессионального развития педагога
Authors: Щербакова Татьяна Николаевна , Малкарова Рахима Хизировна 
Published: May 2018

The article examines the communicative resource as an acmeological factor of the educator’s professional development. It presents the results of empirical research of expressiveness of components of the educator’s communicative resource: empathy, readiness for cooperation, communicative self-control, communication style. It describes projections of the communicative resource in professional pedagogical activity.
К вопросу о воспитании и обучении детей, испытывающих трудности при усвоении дошкольной образовательной программы в традиционных условиях дошкольного образовательного учреждения
Authors: Лихачёва Елена Николаевна 
Published: May 2018

Some children with mental retardation are currently pupils of mass preschools. Implementing education and training of children in preschool institutions, the teacher has some difficulties. Institutes of teachers’ professional development should promote full realizationof conditions of professional development of kindergarteners in education and upbringing of such children.
Проблема психологического ресурса замещающей семьи
Authors: Гапченко Елена Александровна 
Published: May 2018

The paper considers topical issues in the sphere of psychological and pedagogical support of substitutive families at a selection and preparation stage. It analyzes the research experience of distinguishing and search of personal and family resources of potential substitutive parents. The article also introduces the results of the empirical study of socio-demographic and psychological characteristics of the citizens who have expressed a wish to adopt an orphan child; the comparative analysis of these characteristics obtained in samples of lonely and family candidates is carried out.
Indolin-2-one Derivatives: Theoretical Studies Aimed at Finding More Potent Aurora B Kinase Inhibitors
Authors: Fernandes Ítalo Antônio , de Assis Tamiris Maria , Rosa Isael Aparecido , Ferreira da Cunha Elaine Fontes 
Published: May 2018

Background:
Aurora kinases perform important roles in mammals, mainly in cell cycle.
Overexpression of these enzymes is related to tumor development and is indicative of worsening of
clinical conditions. Aurora kinases are promising targets in the search for new anticancer drugs, in
particular, Aurora B.
</P><P>
Methods: This work was designed to study and understand the interactions between human Aurora
B and several indolin-2-one derivatives, structurally similar to sunitinib. MVD software was
utilized in docking analyses of indolin-2-one derivatives. Human Aurora B kinase was obtained
from the PDB (4AF3) and redocked with hesperadin, which was used as a reference compound. The
predicted model of the training group, considering 21 amino acid residues, performed in
Chemoface, achieved an R2 of 0.945, suggesting that the binding conformations of the ligands with
human Aurora B are reasonable and the data can be used to predict the interaction energy of other
Aurora B inhibitors indolin-2-one derivatives.

Results:
MolDock Score energy for compound 1 showed more stable interaction energy (-225.90
kcal.mol-1) then the other inhibitors studied, while sunitinib was the least stable (-135.63 kcal.mol-1).
Compounds 1-45, hesperadin and sunitinib, interacted with Glu171 (–NH from indolinonic moiety),
and the majority of them with Ala173 (C=O from indolinonic moiety) via hydrogen bonds, thus
these two residues are relevant for potency.

Conclusion:
Docking studies and biological activity in literature show subunits likely for structural
optimizations, leading to four new proposed derivatives (IAF61, IAF63, IAF66, IAF79) as
promising compounds for synthesis and biological evaluation against human Aurora B, validating
and ratifying the docking studies.
The Evaluation of Metal Co-ordinating Bis-Thiosemicarbazones as Potential Anti-malarial Agents
Authors: Akladios Fady N. , Andrew Scott D. , Boog Samantha J. , de Kock Carmen , Haynes Richard K. , Parkinson Christopher J. 
Published: May 2018

Background:The emergence of resistance to the artemisinins which are the current mainstays for antimalarial chemotheraphy has created an environment where the development of new drugs acting in a mechanistally discrete manner is a priority.Objective:The goal of this work was to synthesize ane evaluate bis-thiosemicarbazones as potential antimalarial agents. </P><P> Methods: Fifteen compounds were generated using two condensation protocols and evaluated in vitro against the NF54 (CQ sensitive) strain of Plasmodium falciparum. A preliminary assessment of the potential for human toxicity was conducted in vitro against the MRC5 human lung fibroblast line.Results:The activity of the bis-thiosemicarbazones was highly dependent on the nature of the arene at the core of the structure. The inclusion of a non-coordinating benzene core resulted in inactive compounds, while the inclusion of a pyridyl core resulted in compounds of moderate or potent antimalarial activity (4 compounds showing IC50 < 250 nM).Conclusion:Bis-thiosemicarbazones containing a central pyridyl core display potent antimalarial activity in vitro. Sequestration and activation of ferric iron appears to play a significant role in this activity. Ongoing studies are aimed at further development of this series as potential antimalarials.
Luz na escuridão: da leitura à apreensão de sentidos
Authors: Oliveira Sandra Regina Ramalho e 
Published: May 2018

Comecei a tirar melhores fotos quando ouvi alguém dizer “fotografia é luz”. Não sei se é uma frase célebre, um dito de algum famoso fotógrafo, ou apenas a maior das obviedades. Mas é preciso que alguém diga ou, melhor, mostre para outro alguém, quem sabe para alguém que pode vir a saber, para que o conhecimento se dissemine. Perceba-se: mostre, e não ensine. Isto porque o ensinar nem sempre coincide com o aprender; e mostrando-se o que se pretende que esse segundo alguém apreenda, talvez implique um aprendizado mais consistente. Luz lançada sobre a escuridão, em duplo sentido, pois lembra o momento bíblico no qual (Gênesis,1:3) Deus, lançando pela primeira vez a luz sobre a escuridão, diz: fiat lux et facta est lux", ou seja, faça-se a luz e a luz foi feita.