bluuebunny/crossref_metadata_2025_split huggingface dataset:
PERBANDINGAN PENERAPAN METODE DRILL DAN RESITASI TERHADAP HASIL BELAJAR KOGNITIF MATEMATIKA SISWA KELAS XI IPA DI SMA ABC CIKARANG [A COMPARISON OF THE IMPLEMENTATION OF DRILL AND RECITATION METHODS TOWARD GRADE 11 SCIENCE STUDENTS’ COGNITIVE ACHIEVEMENT AT A HIGH SCHOOL IN CIKARANG]
Authors: Soponyono Andreas Eko , Sinaga Kelly , Seleky Jacob S. 
Published: May 2018

<p>This research aims to investigate the comparison of the improvement average in student’s mathematics cognitive learning outcomes between an 11<sup>th</sup> grade science class taught by drill strategy and by recitation method. This research used quasi-experimental with pre-test post-test comparison group design. The sample was taken by a convenient random sampling. The instruments were tried before being given to the research sample to measure the validity, reliability, difficulty index and discriminating power. The analysis uses the U Mann-Whitney test. The results of the research show that there are no different improvement average in mathematics cognitive outcomes between an 11<sup>th</sup> grade science class that taught by drill and by recitation method (p= 0,152 &gt; 0,05).</p><p><strong>BAHASA INDONESIA ABSTRAK: </strong>Tujuan penelitian ini untuk menyelidiki perbandingan peningkatan hasil belajar kognitif Matematika antara siswa kelas XI IPA yang mengalami pembelajaran dengan metode <em>drill</em> dan yang dengan resitasi. Metode penelitian yang digunakan adalah kuasi eksperimen dengan <em>pre-test post-test comparison group design</em>. Instrumen telah diujicoba sebelum diberikan kepada sampel penelitian untuk mengukur validitas, reliabilitas, taraf kesukaran dan daya pembeda. Analisis data menggunakan tes U Mann-Whitney. Hasil penelitian menunjukkan bahwa tidak terdapat perbedaan peningkatan hasil belajar kognitif Matematika antara siswa yang diterapkan metode <em>drill</em> dengan yang diterapkan metode resitasi (p= 0,152 &gt; 0,05).</p><p> </p>
PENERAPAN TEAM QUIZ UNTUK MENINGKATKAN KEMAMPUAN KERJA SAMA ANTAR SISWA KELAS VIII-B PADA MATA PELAJARAN MATEMATIKA [THE IMPLEMENTATION OF A TEAM QUIZ TO IMPROVE COOPERATION SKILLS AMONG GRADE 8B STUDENTS IN MATHEMATICS]
Authors: Marcella Adelia , Wulanata Imanuel Adhitya , Listiani Tanti 
Published: May 2018

<p>Based on observations of grade 8B students in a Christian junior high school in Kupang, it was found that students were not able to demonstrate the ability to cooperate in mathematics lessons. To overcome this, the researcher implemented a Team Quiz to assist students in developing their cooperative skills. This research used Kemmis &amp; McTaggart’s model for Classroom Action Research (CAR). The research was done in two cycles. The instruments used were mentor’s and peer’s observations, student’s questionnaires, and tests. The findings showed that Team Quiz could help grade 8B students to improve their cooperation skills in mathematics subjects.</p><p><strong>BAHASA INDONESIA ABSTRAK: </strong>Berdasarkan hasil observasi pada siswa kelas VIII-B di salah satu SMP Kristen Kupang, ditemukan bahwa siswa belum mampu menunjukkan kemampuan kerja sama dalam pelajaran Matematika. Untuk mengatasi hal tersebut, peneliti menerapkan Team Quiz untuk membantu siswa dalam mengembangkan kemampuan kerja sama. Metode penelitian yang digunakan adalah Penelitian Tindakan Kelas (PTK) model Kemmis dan Mc Taggart. PTK ini berlangsung dalam dua siklus. Instrumen yang digunakan adalah lembar observasi check-list mentor dan teman sejawat, lembar observasi rating scale mentor dan teman sejawat, lembar angket siswa, dan lembar wawancara mentor. Hasil Penelitian Tindakan Kelas (PTK) menunjukkan bahwa penerapan Team Quiz dapat meningkatkan kemampuan kerja sama antar siswa kelas VIII-B pada mata pelajaran Matematika.</p><p> </p>
Agricultor familiar e produtor rural no Brasil: os efeitos jurídicos de sua formalização como empresários individuais
Authors: Ferreira Daniela Dos Santos , Chaves Vinícius Figueiredo , Sant´Anna Leonardo Da Silva 
Published: May 2018

Apoiado em pesquisa bibliográfica, documental e de levantamento de dados, este artigo estuda as figuras do agricultor familiar e do produtor rural no Brasil, com foco na análise crítica dos efeitos jurídicos de sua formalização como empresários individuais rurais. Inicialmente é realizada uma breve síntese sobre o fomento do Estado à profissionalização da agricultura familiar, a partir da concessão do crédito rural. Após, são tratados os aspectos gerais relacionados à teoria da empresa, seguidos da apresentação do conceito e da natureza da categoria jurídica empresário individual rural. Na sequência, discute-se a questão da equiparação do agricultor familiar e do produtor rural à figura do empresário, assim como os efeitos jurídicos decorrentes de sua formalização como empresários individuais, cujas vantagens são questionadas haja vista as demais alternativas que lhes permitem mover suas empresas.
Elementos para uma compreensão histórica do controle da constitucionalidade no Brasil (1891 e 1965)
Authors: Continentino Marcelo Casseb 
Published: May 2018

Esta investigação analisa dois momentos constitutivos fundamentais da história do controle da constitucionalidade das leis no Brasil, de modo a oferecer uma visão crítica das narrativas constitucionais hegemônicas, bem como contribuir para a ciência do direito constitucional. Destaca-se, a exemplo do controle judicial, que os mesmos institutos podem dar ensejo a usos e práticas antagônicas ao longo do tempo.
Os quatro pilares para a preservação da imparcialidade técnica das agências reguladoras
Authors: Araújo Valter Shuenquener de 
Published: May 2018

A disseminação da regulação por intermédio de agências reguladoras no Brasil tem originado uma série de controvérsias alusivas aos limites de sua atuação e ao alcance de sua discricionariedade técnica. A maior autonomia técnica dessas autarquias de regime especial não pode se consubstanciar em diretriz existente apenas no papel. Este trabalho analisa, assim, os quatro pilares centrais para a preservação da autonomia reforçada e da imparcialidade técnica das agências reguladoras. São eles: a regra do mandato fixo, o princípio da menor intensidade (deferência) no controle dos atos das agências, a vedação de contingenciamento de seus recursos orçamentários e a impossibilidade de supressão de competências das agências por medida provisória. Sem a manutenção desses pilares, as agências terão diminuta capacidade institucional e ficarão comprometidas na sua atuação neutra em matéria técnica.
PROTECTIVE ROLE OF XINNAONING TABLET IN ISCHEMIC STROKE IN RAT MODEL
Authors: Wang Ling , Lv Hongdi , Xie Guoqi , Su Feng , Geng Xiuli , Hao Shaojun , Zhang Zhengchen 
Published: May 2018

Background: Stroke has been considered as the second leading cause of death worldwide. The survivors of stroke experience different level of impair brain function. In China, Chinese traditional medicine had been widely accepted for stroke therapy and prevention. In this study, we developed Traditional Chinese Medicine based Xinnaoning (peace of heart and brain) Tablet and tested its protective role for ischemic stroke in rat model.
Material and Methods: Male Wistar rats (n=60) with 12 weeks old and weight from 180 to 200 gram were randomly divided to five groups (n=12). For the groups with Xinaoning administration, the drug was administrated to rats once per day for 7 consecutive days. The blood clotting time and the thrombus wet weight was measured. Serum samples were collected from each rat for further Measurement of biochemical indicators.
Results: Our results demonstrated that Xinnaoning tablet reduced lactate acid (LD) level and increased lactic acid dehydrogenase (LDH) in cerebral ischemia model as well as reduced the infarct size caused by stroke. Besides, evaluation of the level of different ATPases suggested Xinnaoning tablet could modulate ATPases activity and confer a protective role in brain. Moreover, analysis indicated Xinnaoning tablet have the anti-coagulation effect in vivo which may contribute to the protection of ischemia.
Conclusion: Our findings suggest that Xinnaoning tablet may be a potential way for cerebral ischemia prevention.
EVALUATION OF THE WOUND HEALING POTENTIAL OF OINTMENT PREPARATION OF ETHYL-ACETATE EXTRACT OF MORINGA OLEIFERA (LAM) IN RATS
Authors: Coker Morenike , Adejo Grace , Emikpe Benjamin , Oyebanji Victor 
Published: May 2018

Background: This study examined the in vitro antibacterial property of extracts of Moringa oleifera and the effect of different concentrations of the ethyl-acetate extract on cutaneous wound using an ointment delivery base. The aim of the study was to screen the extracts with best antibacterial property and evaluate effectiveness of different concentrations of the best extract when delivery is modified to ensure prolonged contact and reduced frequency of administration using an ointment base delivery vehicle.
Materials and Methods: Dried and pulverized leaves of Moringa oleifera were screened for secondary metabolites. Successive gradient extraction was carried out using n-hexane, ethyl acetate and methanol. Leaf extracts were screened against clinical wound isolates of Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae and Proteus mirabilis using agar cup diffusion technique. The ethyl acetate extract was investigated for its healing efficiency on excision wound model in rats. The study made use of wistar rats (150-180 kg), randomized into Gentamicin, M. oleifera ointment (5% and 3.25%), and ointment base treatment groups. Treatments were applied topically on days 0, 7 and 14. The percentage wound closure rate was measured and histopathology of the healed wounds carried out.
Results: In vitro antimicrobial screening showed that ethyl-acetate extract was effective against the test isolates. Topical application of ointment with 3.25% of the plant extract resulted in faster wound closure rate, rapid epithelization, resolution of granulation tissue, and remodeling at histology.
Conclusion: This may be due to less interference by components of M. oleifera which appear to retard wound healing at higher concentrations. Therefore, M. oleifera 3.25% ointment preparation is recommended topically for wound healing.
Nitrogen Fertilization of Soybean in Mississippi Increases Seed Yield but Not Profitability
Authors: McCoy Justin M. , Kaur Gurpreet , Golden Bobby R. , Orlowski John M. , Cook Donald , Bond Jason A. , Cox Michael S. 
Published: May 2018

Core Ideas
Nitrogen applications increased soybean yields by 4% for sandy/silt loam soil.
Nitrogen applications increased soybean yields by 8% for clay soil.
Yield components response to N applications parallels the trends observed for yield.
Nitrogen application is not an economically feasible way to improve soybean yield.
Trials were conducted in 2014 and 2015 at Delta Research and Extension Center in Stoneville, MS, to evaluate soybean [Glycine max (L.) Merr.] response to N sources (ammonium sulfate [AMS], polymer‐coated urea [PCU], urea+urease inhibitor [Urea+NBPT, N‐(n‐butyl) thiophosphoric triamide]), N application rate (0, 45, 90, 135, 179 kg N ha−1) and timing (V4, R1), on two soil textures (sandy/silt loam and clay) that are commonly used for soybean production in Mississippi. Urea+NBPT produced 5 and 8% greater aboveground biomass than AMS and PCU on sandy/silt loam soil. Nitrogen applications at the V4 growth stage resulted in 6% greater biomass production than the R1 application timing on sandy/silt loam. Averaged over N rates where a seed yield increase was observed, N applications increased soybean yields by 4% for sandy/silt loam soil and by 8% for clay soil compared to unfertilized soybeans. No differences were observed for soybean yields between N rates of 45, 90, 135, and 179 kg N ha−1. Soybean yield from PCU was 2.5% greater than urea+NBPT on sandy/silt loam soil. Nitrogen rates influenced soybean yield components including pods and seeds plant−1 on sandy/silt loam soil as well as seeds and seed mass plant−1 on clay soil. Yield component response to N fertilization parallels the trends observed with overall soybean seed yield increases on both soil textures. Despite increases in seed yield observed with N application, analysis of partial returns suggests that N application is not an economically feasible way to improve soybean seed yield.
Effect of Diammonium Phosphate as In‐Furrow Starter Fertilizer on Winter Canola Grain Yield and Quality
Authors: Abit M. Joy M. , Lofton Josh , Arnall D. Brian 
Published: May 2018

Core Ideas
In‐furrow application of diammonium phosphate (DAP) as a starter fertilizer could be a beneficial component of a comprehensive soil fertility program for winter canola production.
Effect of in‐furrow starter, DAP, on the oil and protein content of winter canola was not significant.
It is important to account for both soil test P (STP) and soil pH completely when providing nutrient recommendations in winter canola.
Winter canola is a valuable rotational crop in Oklahoma. Starter fertilizer application is viewed as a way to improve canola yields. Field experiments were conducted in Dacoma, El Reno, Fairview, Fort Cobb, Kingfisher, Lahoma, Lamont, Miami, and Perkins, OK to evaluate the effect of applying diammonium phosphate (DAP, 18–46–0: N–P2O5–K2O) in‐furrow on winter canola grain yield and quality. Diammonium phosphate was applied with the seed at planting at 22 and 30 lb/ac in no‐till (NT) and minimum/conventional till (CT) systems, respectively. Canola variety ‘DKW 46–15’ was seeded from September 10 to October 10, 2016 at 3.75 lbs/ac spaced at 7.5 (CT) and 15 in (NT). Four of the 10 locations responded to in‐furrow application of DAP. Yield response ranged from 1 to 6 bu/ac. Locations that had low soil test phosphorus and low soil pH generally had higher yield response (3–6 bu/ac) than all other locations. Effect of in‐furrow DAP on the oil and protein content of winter canola was not significant. Results indicated the importance of accounting for both soil test phosphorus and soil pH completely when providing nutrient recommendations in winter canola.
Benefits of polymeric membranes in Oil and Gas produced water treatment
Authors: Sutton-Sharp E. , Ravereau J. , Guennec M. , Brehant A. , Bonnard R. 
Published: May 2018

Abstract
Falling oil prices and increased environmental concern lead oil and gas companies to reinject produced water(PW) to reduce both their water management costs and environmental footprint. Membrane processes are an attractive opportunity because they generate a higher quality effluent than conventional PW treatment technologies at a competitive cost.
The objective of the study was to compare the performances of ten membranes to treat PW and identify which of the structural and operational characteristics of the membranes are the success factors to ensure cost-effective, long-term and reliable operation. In oil and gas applications, ceramic filtration media is often preferred owing to its high structural robustness. Nevertheless, polymeric membranes offer the benefits of being less expensive and result in a lower footprint and weight.
Tests using real oilfield PW were run to assess and compare ten membranes according to their oil rejection rate, permeability, resistance to fouling, life expectancy and resistance to ageing.
All membranes tested achieved more than 99% removal of insoluble oil versus 80–85% for conventional technologies. The permeability over time and resistance to fouling were used to identify the most reliable and cost-effective membranes. The robustness of polymeric membranes was confirmed based on good resistance to ageing.
Unconventional methods for pressure loss reduction in standard pipe elements
Authors: Gönczi Gábor 
Published: May 2018

Abstract
Reduction of pressure at pump houses are the most feasible and most advantageous as the pipe design method that is used, is more than 200 years old and is based up on 19th century production technology. My research focuses on a general approach on improving and reducing the pressure loss of these pipe elements with the help of non-conventional methods, thus resulting in a lower and more optimal energy usage of pump houses. The problematic zones are identified with the help of numerical modelling, geometry changes can be made and tested the same method. The geometrical changes aiming at pressure loss reduction follow non-conventional ideas, form hemodynamic and other biomechanics sources. Pipes in the pump houses are designed, for more than 50 years of operation. Even a small pressure loss reduction with this new method will mean large amount of energy saving in total. The results show that 15%–60% of pressure loss reduction is feasible, according to the complexity of the geometry. Pressure loss reduction will reduce energy consumption of water pumps which will result in a more efficient water works operation.
AecomixTM for efficient energy recovery from wastewater and waste streams
Authors: Menkveld H. W. H. , Broeders E. , Smith G. O. J. 
Published: May 2018

Abstract
Food and beverage production plants are major wastewater contributors and often have food waste. Particularly plants with wastewaters with a significant total suspended solids and/or fats, oils and greases like in the dairy, redmeat and chicken industry needs to pre-treat their wastewater before high rate anaerobic reactors can be applied. This pre-treatment generally includes undesirable chemical treatment and generates a concentrated side stream which needs to be dealt with.
The AecomixTM reactor is an anaerobic reactor with solids retention, particularly suited to treat such effluents, together with available organic wastes. In this manner two waste streams are dealt with in one system and a high level of conversion to biogas is achieved. The solids retention is achieved by Dissolved Biogas Flotation. A full scale AecomixTM reactor treated the effluent of a chocolate/candy factory with a COD concentration varying between 10,000–60,000 mg/l at an average of 37,000 mg/l. The removal for COD and TSS was more than 95% on average. To meet with local discharge regulations a post aerobic biological treatment may be required. The excess sludge from this aerobic system can be returned to the AecomixTM reactor, which is another advantage over high rate (UASB or EGSB type) reactors. The AecomixTM is approximately 50% lower in yearly costs compared to a chemical treatment plant based on flocculation flotation followed by an EGSB reactor.
Enhancing the quality of arsenic-contaminated groundwater using a bio-sand filter with iron-mixed clay pellets
Authors: Te Borano , Wichitsathian Boonchai , Yossapol Chatpet , Wonglertarak Watcharapol 
Published: May 2018

Abstract
Many people in Cambodia consume groundwater with arsenic concentrations above the WHO guideline. In this study, an iron-mixed porous pellet adsorbent was put into a lightweight bio-sand filter to treat arsenic. The filter was intermittently charged daily with 30 L influent water until the effluent arsenic concentration exceeded 10 μg/L. The results indicated that the Morrill Dispersion Index was less than 2.0, implying that the filter had preferential plug flow. Head loss accumulation led to flow rate reduction over a period of 30 days. Arsenic removal efficiency was between 97 and 99% for the influent concentration, being in the range 355 to 587 μg/L. No significant leaching of iron or organic carbon was observed. The high dissolved oxygen concentration is likely to have contributed to the aerobic conditions in the filter bed. The filter removed arsenic more efficiently than was achieved in some previous studies and might be suitable to provide household-scale, arsenic-safe drinking water.
Identifying technical synergy effects for organic micro-pollutants removal
Authors: Fundneider T. , Herrling M. P. , Kahl E. P. , Lackner S. 
Published: May 2018

Abstract
Processes for the removal of organic micro-pollutants (OMPs) from wastewater treatment plant's (WWTPs) effluents have been tested over decades, and have recently found their way into practice. Operators of WWTPs are confronted with the question of efficiency and the choice of economical process (combination). So far, a systematic approach regarding the selection of the appropriate process (combinations) is missing. There is no information available which technology is best suited for removal of OMPs and other conventional pollutants for good conditions in waterbodies. This study evaluates 52 pilot and full-scale studies regarding their removal efficiencies of various OMPs by advanced processes (adsorption and ozonation) in combination with/without filtration. The results provide a comprehensive picture of the complex state of knowledge and show that technical synergy effects enable the reduction of a wide range of OMP in combination with other conventional parameters, e.g. solids and phosphorous.
Capacitive desalination of WO3/carbon cloth supercapacitor and morphology analysis
Authors: Gui Y. , Blackwood D. J. 
Published: May 2018

Abstract
Cathode materials are important in determining the performance of a capacitive deionization cell. In this work activated carbon cloth (ACC) grafted with tungsten oxide was employed as cathode, which was first grown on ACC with a flaky morphology by a self-anodization method. The oxide was uniformly distributed over the surface of the ACC. The desalination capacity of the obtained material is deduced from electrochemical characterization, based on the preliminary stage, in the static 1 M NaCl aqueous solution over a potential range from −1 V to 0.2 V. The modified ACC attained an enhanced ion removal ability, which gives promising potential in the further application on removing heavy ions from the wastewater of industries.
A small-scale low-cost water treatment system for removal of selected heavy metals, bacteria and particles
Authors: Siwila Stephen , Brink Isobel C. 
Published: May 2018

Abstract
Two low-cost sand filtration systems incorporating granular activated carbon (GAC) and non-woven geotextile respectively were assessed for Point-of-Use water treatment. Laboratory scale models were evaluated in respect of selected heavy metals, bacterial and particulate removal when exposed to surface water for five months. System 1 (ISSF-1) incorporated GAC and system 2 (ISSF-2) incorporated non-woven geotextile. Filter-mats were placed on the filter surfaces of both systems. Flow rates ranged between 8 and 15 L/h for longer water contact with the GAC and bio-layer. On average, E.coli removals were 96% and 94%, while fecal coliform removals were 96% and 95%, by ISSF-1 and ISSF-2 respectively. Average TSS removals were 98% and 92%, while turbidity removals were 97% and 91%, by ISSF-1 and ISSF-2 respectively. Average metal removals were: Arsenic (21%), Cadmium (82%), Lead (36%), Iron (65%) and Manganese (94%) by ISSF-1, Arsenic (17%), Cadmium (&lt;LoD), Lead (&lt;LoD), Iron (92%) and Manganese (98%) by ISSF-2. Both models consistently met turbidity guideline (5 NTU) and can remove significant amounts of particles. Both systems can treat the poor-quality water used to provide relatively safe water and could be improved further for heavy metal removal. However, to guarantee continued safe-water supply, supplementary treatment by chlorination is recommended.