bluuebunny/crossref_metadata_2025_split huggingface dataset:
HYBRID KITOSAN/BENTONIT SEBAGAI MATRIKS UNTUK PELEPASAN ION AMONIUM DALAM AIR
Authors: Piluarto Bambang , Mahendra Yusril Ihza , Andarini Novita 
Published: December 2017

AbstrakHybrid kitosan/bentonit dalam bentuk bead telah berhasil dibuat dengan berbagai rasio komposisi kitosan dan bentonit. Dalam penelitian ini, bead dari hybrid ini digunakan sebagai matriks untuk ion amonium. Bead dibuat dengan pengendapan suspensi kitosan dan bentonit menggunakan koagulan NaOH. Bead hybrid yang diperoleh dikarakterisasi daya serap air (DSA) dan pelepasan ion amonium dalam air. Hasil yang diperoleh menunjukkan bahwa bentuk bead dipengaruhi oleh kandungan bentonit dalam hybrid. Peningkatan kandungan bentonit dalam hybrid menurunkan nilai DSA, namun meningkatkan pelepasan ion amonium dalam air. Sisa basa pada permukaan bead hybrid mempengaruhi deteksi pelepasan ion amonium dalam air. Kata kunci: hybrid, bead, suspensi, daya serap air, pelepasan ion AbstractChitosan/bentonite hybrid in the form of beads was successfully prepared in various of chitosan and bentonite composition ratio. In this study, beads of hybrid play role as matrix for ammonium ions. Beads prepared by precipitation of chitosan and bentonite suspension using NaOH as coagulant. Characterization beads obtained were carried out on water uptake and release of ammonia ions in the water. The results showed that forms of bead were affected by bentonite content in the hybrid. Increasing of bentonite content decreased water uptake of hybrid, however the release of ammonia ions in the water increased. Remaining base in the beads surface affected detection of release of ammonia ions in the water. Keywords: hybrid, beads, suspension, water uptake, release of ions
DAYA SERAP KULIT KACANG TANAH TERAKTIVASI ASAM BASA DALAM MENYERAP ION FOSFAT SECARA BATH DENGAN METODE BATH
Authors: Irdhawati Irdhawati , Andini Alling , Arsa Made 
Published: December 2017

AbstrakKulit kacang tanah digunakan sebagai adsorben untuk menyerap ion fosfat dalam larutan. Sebelum digunakan sebagai adsorben, kulit kacang tanah dicuci, dikeringkan, dihaluskan menggunakan blender dan diayak dengan ukuran partikel ≤ 100 mesh. Serbuk halus diaktifkan dengan asam (H2SO4) dan basa (NaOH) pada berbagai konsentrasi. Selanjutnya, adsorben dengan dan tanpa aktivasi digunakan untuk menentukan kadar fosfat yang terserap secara optimum. Parameter adsorpsi yang digunakan adalah waktu kontak dan kapasitas adsorpsi. Kapasitas adsorpsi diukur dengan mereaksikan ion fosfat dengan adsorben, dan sisa analit dalam larutan ditambahkan dengan amonium molibdat membentuk senyawa kompleks amonium fosfomolibdat berwarna biru dalam larutan asam. Konsentrasi senyawa kompleks ditentukan dengan metode spektrofotometri UV-Visible.Hasil dalam proses aktivasi menunjukkan konsentrasi optimum asam adalah 0,05 M, dan basa sebesar 0,5 M. Waktu kontak optimum diperoleh 45 menit untuk adsorben tanpa aktivasi dan aktivasi basa, sedangkan untuk aktivasi asam 30 menit. Kapasitas adsorpsi optimum berturut-turut adalah 8,5 mg/g; 8,8 mg/g, dan 10,4 mg/g menggunakan adsorben tanpa aktivasi, teraktivasi asam dan teraktivasi basa. Adsorben teraktivasi basa memiliki kapasitas adsorpsi tertinggi dibandingkan adsorben tanpa aktivasi dan teraktivasi asam. Kata kunci: kulit kacang tanah, ion fosfat, adsorpsi, amonium fosfomolibdat AbstractPeanut shell was used as adsorbent to adsorb phosphate ion in solution. Before using as adsorbent, the peanut shell was washed, dried, mashed and sifted with particle size <100 mesh. The fine powder was activated by acid (H2SO4) and base (NaOH) with various concentrations. Furthermore, the adsorbent with and without activation was used to determine the optimum phosphate concentration that can be adsorbed. The parameters adsorption such as contact time and adsorption capacity, were examined. The adsorption capacity was measured by reacting the phosphate ion with adsorbent, and the rest of analyte in the solution reacted with ammonium molybdate formed ammonium phospho molybdate complex compound whose blue color in acidic solution. The concentration of complex compound can be determined by UV-Visible spectrophotometry method. The results in activation process showed the optimum concentration of acid is 0.05 M, and base is 0.5 M. The optimum contact time obtained 45 minutes for adsorbent without and base activated, while 30 minutes for acid activated. The optimum adsorption capacity is 8.5 mg/g, 8.8 mg/g, and 10.4 mg/g using adsorbent without, acid, and base activated, respectively. Adsorbent in base activated has the highest adsorption capacity compared with no and acid activated. Keywords: peanut shell, phosphate ion, adsorption, ammonium phospho molybdate
Penentuan Kapasitas Adsorpsi Selulosa Terhadap Rhodamin B dalam Sistem Dinamis
Authors: Asnawati Asnawati 
Published: December 2017

AbstrakPenelitian ini bertujuan untuk menentukan kapasitas adsorpsi selulosa, massa optimum dan pH optimum. Kapasitas adsorbsi ditentukan dengan sistem dinamis dengan kecepatan 1 mL/12 menit melalui kolom, diameter 8 mm mengandung selulosa. Metoda ini dibuat dengan menvariasikan massa adsorbent dan pH Rhodamine B. kapasitas adsorpsi selulosa ditentukan dengan menggunakan persamaan Thomas. kurva Breakthrough digunakan untuk mengetahui keefektifan kolom dalam mengadsorpsi Massa adsorben divariasikan sebesar 0,1; 0,2; dan 0,3 gram serta pH larutan influen divariasikan pada pH 5, 6 dan 7. Massa adsorben dan pH larutan influen dengan kapasitas adsorpsi paling optimum adalah massa 0,3 gram dan pH 7. Kapasitas adsorpsi selulosa terhadap Rhodamin B sebesar 5, 94 mg/g. Kata kunci: Adsorpsi, Rhodamin B, selulosa, sistem dinamis AbstractThis study is to determine the adsorption capacity of the cellulose to Rhodamine, the mass optimum and pH optimum. Cellulose adsorption capacity is determined in a dynamic method with a flow rate of 1 mL/12 minutes through the column, diameter of 8 mm, containing cellulose. This method was made variations of the mass of adsorbent and the pH of the influent Rhodamine B solution. Determination of the adsorption capacity of cellulose in this study used the model equations Thomas. Breakthrough curves were used to determine the effectiveness of the column in which cellulose adsorb. Mass adsorbent and the pH of the influent with the highest adsorption capacity is mass of 0.3 grams and pH 7. The adsorption capacity of cellulose to Rhodamine B is 5,94 mg/g Keywords: Adsorption, Rhodamine B, cellulose, dynamic system
Integração da Psicologia e Odontologia na DTM: revisão sistematizada
Authors: Zavanelli Adriana Cristina , Alves Rezende Maria Cristina Rosifini , Santos-Neto Otavio Marino dos , Fajardo Renato Salviato 
Published: December 2017

A etiologia mais provável da disfunção temporomandibular (DTM) é multifatorial. Esse fato torna complexo o seu diagnóstico e tratamento para a área de Odontologia. Um dos componentes importantes na etiologia e perpetuação da DTM, ainda pouco explorado no tratamento dessa síndrome, é o psicológico. Sendo assim, este artigo teve como objetivo apresentar revisão sistematizada da literatura enfocando a integração da DTM e psicologia. Foi realizado um levantamento nas bases de dados Pubmed e Scielo no período de 2010 a 2017 utilizando como critério de inclusão: artigos publicados na língua inglesa ou portuguesa com os descritores psicologia e síndrome da articulação temporomandibular ou psicoterapia e articulação temporomandibular. Foram excluídos os artigos onde o componente psicológico nos casos de DTM foi apenas citado e não avaliado e artigos de revisão de literatura. A busca selecionou 23 artigos, dos quais 17 citavam a psicologia como etiologia, relacionado com a qualidade de vida e somente 4 propuseram terapias psicológicas para o tratamento da DTM, sendo que 1 associou a psicoterapia com o relaxamento. Os resultados obtidos enfatizaram a importância da integração entre as áreas do saber para proporcionar atendimento integral aos portadores desta disfunção. Apesar disso, a literatura disponível abordando terapias psicológicas no tratamento da DTM é escassa justificando a necessidade de estudos nessa área.Descritores: Síndrome da Disfunção da Articulação Temporomandibular, Odontologia, Psicoterapia.
Use of Molecular Markers to Compare Escherichia coli Transport with Traditional Groundwater Tracers in Epikarst
Authors: Bandy Ashley , Cook Kimberly , Fryar Alan E. , Polk Jason 
Published: December 2017

Bacterial contamination of karst aquifers is a global concern as water quality deteriorates in the face of decreasing water security. Traditional abiotic groundwater tracers, which do not exhibit surface properties similar to bacteria, may not be good proxies for risk assessment of bacterial transport in karst environments. This study examined the transport and attenuation of two isolates of Escherichia coli in relation to traditional groundwater tracers (rhodamine WT dye and 1‐μm‐diam. latex microspheres) through ∼30 m of epikarst in western Kentucky. Differential movement of the four tracers was observed, with tracer behavior dependent on flow conditions. Dye arrived at the sampling site prior to particulates. Molecular biology techniques successfully detected bacteria in the cave and showed attenuation was greater for a bacterial isolate with high attachment efficiency compared with an isolate known to have low attachment efficiency. Microspheres were first detected simultaneously with the low‐attachment isolate but attained maximum concentrations during increases in discharge >11 d post‐injection. Bacteria were remobilized by storm events >60 d after injection, illustrating the storage capacity of epikarst with regard to potential contaminants. The two bacterial strains were not transported at the same rate within the epikarst, showing breakthroughs during differing storm events and illustrating the importance of cell surface chemistry in the prediction of microorganism movement. Moreover, this study has shown that molecular analysis can be successfully used to target, quantify, and track introduced microbial tracers in karst terrains.Core Ideas
Differential movement of bacteria, dye, and microspheres was evident in epikarst.
Surface chemistry should be considered for prediction of bacterial movement in karst.
Molecular analysis can be used to track microbial tracers in karst terrains.
Selection of Expression Reference Genes with Demonstrated Stability in Barley among a Diverse Set of Tissues and Cultivars
Authors: Gines Michael , Baldwin Thomas , Rashid Abdur , Bregitzer Phil , Maughan Peter J. , Jellen Eric N. , Klos Kathy Esvelt 
Published: December 2017

ABSTRACTReference genes are selected based on the assumption of temporal and spatial expression stability and on their widespread use in model species. They are often used without validation in the studied species. For barley (Hordeum vulgare L.), previous reference gene validation studies have been limited by the number of tissues, cultivars, and/or reference gene candidates assayed. Publically available bioinformatic resources are now available that enable efficient assessment of much larger numbers of candidate genes than is possible with empirical approaches. Expression sequence tag profile viewer data from the UniGene library were used to predict the expression stability of 655 barley genes. The expression profiles of 20 gene candidates predicted to be stable across tissue types were evaluated in eight tissues of the cultivar ‘Conlon’ by real‐time quantitative polymerase chain reaction. The five most stable genes were then tested in the barley cultivars ‘Golden Promise’ and ‘Harrington’ and (to test potential applicability to other Poaceae species) in the oat (Avena sativa L.) cultivar ‘Hifi’. The traditional reference gene actin and the candidate genes elongation factor EF‐2 and malate dehydrogenase demonstrated the most stable expression. The predictive capacity of bioinformatics to identify suitable reference genes was demonstrated. Four genes with better stability than all except one traditionally used reference gene were discovered.
Lateral Transfer of Organic Carbon and Phosphorus by Water Erosion at Hillslope Scale in Southern Spain Olive Orchards
Authors: Gómez J.A. , Francia J.R. , Guzmán G. , Vanwalleghem T. , Durán Zuazo V.H. , Castillo C. , Aranda M. , Cárceles B. , Moreno A. , Torrent J. , Barrón V. 
Published: December 2017

Core IdeasA 3‐yr hillslope study presents DOC, DOC, TP, and DRP losses from several olive orchards.Losses of DOC and TOC were higher than those measured in other agricultural systems.Losses of TP were at the high‐end range of losses measured in agricultural systems.Temporary cover crops in lanes can reduce TOC and TP losses through reduced sediment losses.Cover crops did not significantly reduce DOC and DRP in runoff compared with conventional tillage.Dissolved organic C (DOC) and dissolved reactive P (DRP) in runoff and total organic C (TOC) and total P (TP) in sediment were measured in three olive (Olea europaeaL.) orchards, during a 3‐yr runoff plot experiment under two soil management systems (temporary cover crop in lanes [CC]; conventional tillage [CT]). Losses of DOC (7.8–13.6 kg ha−1yr−1) were equivalent and losses of TOC (101–432 kg ha−1yr−1) were higher than those measured in other agricultural systems, so both sources of organic C, dissolved and in sediment, should not be neglected when accounting fluxes to water bodies in the region and soil organic C (SOC) balances at the hillslope scale in olive orchards. Losses of DRP (0.03–0.21 kg ha−1yr−1) were in the lower to medium range, while losses of TP (2–39 kg ha−1yr−1) were in the higher range than those reported from agricultural areas. The average annual concentration of DOC in runoff was similar for both systems (20.9–9.1 vs. 21.4–8.7 mL L−1for CC and CT, respectively) and also for DRP (0.45–0.02 vs. 0.20–0.02 mg L−1for CC and CT, respectively). Concentrations of TOC and TP were higher under CC, but under CC the TOC and TP fluxes were lower because of reduced sediment losses. To achieve a large reduction in TP and TOC, CC management should provide early ground cover beginning in early fall, the start of the rainy season. A conceptual model of TOC and TP losses was developed to estimate the impact of different cover crop soil conservation strategies.
Erosion and Lateral Surface Processes
Authors: Assouline S. , Govers G. , Nearing M.A. 
Published: December 2017

Core Ideas
This special section is a snapshot of current work and understanding of lateral surface transport processes.
The particular focus is on soil erosion.
Soil erosion is a very large and very important topic.
It must be addressed from both practical and rigorous scientific angles.
Erosion can cause serious agricultural and environmental hazards. It can generate severe damage to the landscape, lead to significant loss of agricultural land and consequently to a reduction in agricultural productivity, induce surface water pollution due to the transport of sediments and suspended material to waterways and rivers, and alter the operation of hydraulic structures due to clogging of channels and sediment loading in reservoirs, estuaries, and oceans. The loss of soil due to erosion will also diminish its capacity to store water, which will not only negatively affect plant growth but might also increase the risk of flooding. Furthermore, erosion plays a significant role in the biogeochemical cycles of carbon, nitrogen, and phosphorus as it redistributes significant amounts of these elements across the surface of the Earth. This special section focuses on many of these aspects and gathers studies presenting valuable experimental and monitoring data, recent relevant technologies and measuring tools, and new modeling approaches that allow a better estimate of the intensity of the degradation processes and a better assessment of their multiscale nature and their coupling with biogeochemical processes as well as soil functioning.
Distribution of human fecal marker GB-124 bacteriophages in urban sewage and reclaimed water of São Paulo city, Brazil
Authors: Prado Tatiana , Bruni Antônio de Castro , Barbosa Mikaela Renata Funada , Bonanno Vilma Marques Santos , Garcia Suzi Cristina , Sato Maria Inês Zanoli 
Published: December 2017

Abstract
Bacteriophages infecting Bacteroides fragilis GB-124 have been described as potential markers of human fecal contamination in water sources. The aim of this study was to evaluate the occurrence of GB-124 phages in raw sewage, secondary effluents and reclaimed water of the São Paulo city using a low-cost microbial source tracking method. Samples were collected monthly from April 2015 to March 2016 in four municipal wastewater treatment plants that operate with activated sludge processes followed by different tertiary treatments (sand-anthracite filtration, membrane bioreactor/reverse osmosis) and final chlorination. GB-124 phages were detected in 100% of the raw sewage samples, with viral loads varying from 7.5 × 103 to 1.32 × 106 PFU/L. Virus removal efficiency in activated sludge processes ranged from 1.89 to 2.31 log10. Frequencies of phage detection were lower in reclaimed water samples (0–22.2%). The results indicated that GB-124 phage could be a complementary low-cost viral marker for the detection of human fecal pollution in waters impacted with urban sewage in this region. However, the datasets of tertiary effluents resulted in several samples with concentrations below the detection limit (DL ≤1 PFU/mL) suggesting the need to obtain analytical methods with lower DL for greater accuracy of negative results.
Rapid decolorization of textile wastewater by green synthesized iron nanoparticles
Authors: Ozkan Z. Y. , Cakirgoz M. , Kaymak E. S. , Erdim E. 
Published: December 2017

Abstract
The effectiveness of green tea (Camellia sinensis) and pomegranate (Punica granatum) extracts for the production of iron nanoparticles and their application for color removal from a textile industry wastewater was investigated. Polyphenols in extracts act as reducing agents for iron ions in aqueous solutions, forming iron nanoparticles. Pomegranate extract was found to have almost a 10-fold higher polyphenolic content than the same amount of green tea extract on a mass basis. However, the size of the synthesized nanoparticles did not show a correlation with the polyphenolic content. 100 ppm and 300 ppm of iron nanoparticles were evaluated in terms of color removal efficiency from a real textile wastewater sample. 300 ppm of pomegranate nanoscale zero-valent iron particles showed more than 95% color removal and almost 80% dissolved organic carbon removal. The degradation mechanisms are is considered to be adsorption and precipitation to a major extent, and mineralization to a minor extent.
Plant growth and nutrient uptake in treatment wetlands for water with low pollutant concentration
Authors: Vincent Gilles , Shang Kankan , Zhang Guowei , Chazarenc Florent , Brisson Jacques 
Published: December 2017

Abstract
The objective of this study was to determine how macrophytes commonly used in treatment wetlands (TWs) respond to water with low pollutant concentration. We measured pollutant removal efficiency and compared growth and nutrient uptake of five macrophytes in demonstration scale units (volume &gt;40 m3) irrigated by water with pollutant concentrations representative of average urban stormwater quality. All species showed a strong productivity gradient along the beds, starting with high biomass – high density near the inlet, then decreasing progressively with distance. Cyperus was by far the most productive species. Phragmites and Thalia had higher biomass in the first few metres of the beds than Typha and Arundo. In terms of pollutant removal, decreasing plant growth may be interpreted as indicative of high efficiency when caused by nutrient depletion. Differences in aboveground biomass between species did not translate into measurable differences in removal efficiency at the outlet. Although Phragmites australis is the species most commonly used in TWs, under the low nutrient load, Cyperus had twice its biomass, and higher N and P uptake. These results highlight the importance of considering wastewater characteristics when selecting macrophyte species for TWs.
Don Quijote y Próspero
Authors: Longres María Isabel 
Published: December 2017

El presente ensayo explora las similitudes en la manera en que los personajes de Alonso Quijano en el Quijote de Miguel de Cervantes Saavedra, y Próspero en La Tempestad de William Shakespeare se vinculan en su calidad de lectores leídos con sus libros y con el acto de leer. Aunque en apariencia condenados, libros y lecturas son, en realidad, irónicamente celebrados como el vehículo que genera y favorece el desarrollo de la imaginación y, en consecuencia, la creación de ficción.
Cross-cultural Adaptation of the Victorian Institute of Sport Assessment-Achilles (VISA-A) Questionnaire for Spanish Athletes With Achilles Tendinopathy
Authors: Hernández-Sánchez Sergio , Poveda-Pagán Emilio José , Alakhdar-Mohmara Yasser , Hidalgo Maria Dolores , Fernández-de-las-Peñas César , Arias-Buría José L. 
Published: December 2017

Study Design Clinical measurement study. Background Achilles tendinopathy is a prevalent sport-related injury. The Victorian Institute of Sport Assessment-Achilles (VISA-A) questionnaire is a widely used patient-reported outcome to assess the severity of symptoms for this injury. Objective To adapt the VISA-A questionnaire into Spanish and to assess its psychometric properties. Methods Cross-cultural adaptation was conducted according to recommended guidelines. The Spanish VISA-A (VISA-A-Sp) questionnaire was administered to 210 subjects: 70 healthy students, 70 active at-risk subjects (participating in running and jumping), and 70 patients diagnosed with Achilles tendinopathy. Participants were assessed at baseline and after 3 to 5 days. The injured subjects were also evaluated with a quality-of-life questionnaire (Medical Outcomes Study 36-Item Short-Form Health Survey [SF-36]) and at discharge. The final VISA-A-Sp was evaluated for reliability, validity, and responsiveness. Results Cronbach alpha for the VISA-A-Sp was greater than .8. The intraclass correlation coefficient (model 2,1) was 0.993 (95% confidence interval: 0.991, 0.995; P<.05). In the confirmatory factor analysis, a 1-factor solution obtained a relatively good fit. Subjects with Achilles tendinopathy scored significantly lower than the other 2 groups (P<.001). The VISA-A-Sp score within the Achilles tendinopathy group showed significant correlations with SF-36 physical components (Spearman rho>0.5, P<.001). The standard error of the measurement was 2.53, and the minimal detectable change at the 95% confidence level was 7 points. The responsiveness indicators included an effect size of 2.16 and a standardized response mean of 1.92. Conclusion The VISA-A-Sp showed satisfactory psychometric properties that were comparable to the original English-language version. Therefore, it can be recommended for use in clinical practice and research for assessing the severity of symptoms in Spanish-speaking athletes who suffer from Achilles tendinopathy. J Orthop Sports Phys Ther 2018;48(2):111–120. Epub 13 Dec 2017. doi:10.2519/jospt.2018.7402