bluuebunny/crossref_metadata_2025_split huggingface dataset:
Penerapan Model Problem Based learning (PBL) dipadu Student Team Achievement Division (STAD) melalui Lesson Study (LS) untuk Meningkatkan Aktivitas dan Hasil Belajar Siswa MAN 3 Malang
Authors: Widyaningrum Diyah Ayu 
Published: October 2016

Berdasarkan observasi pembelajaran Biologi di MAN 3 Malang, secara garis besar kegiatan pembelajaran Biologi masih menggunakan model ceramah sehingga pembelajaran cenderung pasif. Diperlukan proses pembelajaran yang inovatif, menarik dan menyenangkan melalui penerapan PBL dipadu STAD berbasis Lesson Study (LS). Tujuan penelitian adalah untuk mengetahui peningkatan aktivitas dan hasil belajar siswa melalui penerapan PBL dipadu STAD berbasis LS. Jenis penelitian yang digunakan adalah Penelitian Tindakan Kelas (PTK). Langkah-langkah PTK melalui LS meliputi perencanaan, pelaksanaan terintegrasi dengan observasi, dan refleksi. Penelitian ini menggunakan 2 siklus, jenis data yang diperoleh adalah data kualitatif dan kuantitatif. Hasil penelitian ini adalah: (1) Meningkatnya kualitas pembelajaran setiap pertemuan dalam setiap siklus dan meningkatnya persentase keterlaksanaan pembelajaran dari siklus 1 ke siklus 2, yaitu sebesar 75,6% (siklus 1) dan 95,6% (siklus 2). (2) Meningkatnya aktivitas belajar siswa dari siklus 1 ke siklus 2 dengan persentase aktivitas belajar siswa 50% (siklus 1) dan 100% (siklus 2). (3) Meningkatnya hasil belajar kognitif siswa dari siklus 1 sebesar 65% ke siklus 2 sebesar 100%. (4) Hasil belajar afektif siswa mengalami peningkatan dari siklus 1 sebesar 65% ke siklus 2 sebesar 100%. (5) Hasil belajar psikomotorik siswa mengalami peningkatan dari siklus 1 sebesar 50% ke siklus 2 sebesar 100%.
Model Quantum Teaching dengan Pendekatan Cooperative Learning untuk Meningkatkan Kualitas Pembelajaran PKn
Authors: Aka Kukuh Andri 
Published: October 2016

Permasalahan pembelajaran PKn pada siswa kelas V SDN Bendo 1 tahun pelajaran 2014/2015, yaitu (1) pembelajaran cenderung berpusat pada guru, (2) pembelajaran belum memusatkan siswa untuk belajar secara aktif (3) dalam RPP belum memaksimalkan peran siswa, kegiatan cenderung individualistik, dan penilaian masih berbasis kognitif, (4) penerapan strategi/model inovatif jarang dilakukan. Dari masalah tersebut diperlukan sebuah penelitian yang bertujuan meningkatkan kualitas pembelajaran PKn, meliputi aktivitas belajar siswa, baik secara afektif dan psikomotor, serta meningkatkan hasil belajar siswa. Desain penelitian yang digunakan adalah penelitian tindakan kelas (PTK). Hasil penelitian menunjukkan peningkatan dan keberhasilan guru dalam melakukan pembelajaran menggunakan Quantum Teaching dengan pendekatan Cooperative Learning terlihat skor keberhasilannya siklus I mencapai 93% dan 100% pada siklus II. Aktivitas belajar siswa meningkat dari 77% pada siklus I dan 86% pada siklus II. Hasil belajar siswa meningkat dari 79% pada siklus I dan 91% pada siklus II. Selama pembelajaran, aktivitas belajar siswa meningkat dan setelah pembelajaran hasil belajar siswa meningkat. Karena penggunaan Quantum Teaching dengan pendekatan Cooperative Learning mampu meningkatkan, aktivitas belajar siswa dan hasil belajar siswa sebaiknya guru menggunakan model ini pada mata pelajaran PKn dan diharapkan guru lebih sering berinovasi dengan model-model pembelajaran inovatif.
Peningkatan Soft Skill Mahasiswa Calon Guru Matematika Melalui Critical Lesson Study
Authors: Santia Ika 
Published: October 2016

Lesson study merupakan salah satu model pembinaan profesi pendidik yang relevan dengan kebutuhan peningkatan keterampilan pendukung pembelajaran (soft skill) guru. Peningkatan soft skill dapat dikembangkan dengan pembelajaran critical. Penelitian ini bertujuan untuk mendeskripsikan (1) peningkatkan soft skill mahasiswa calon guru matematika melalui penerapan lesson study, dan (2) peningkatan kegiatan mahasiswa pada fase pembelajaran criting setelah penerapan lesson study. Penelitian ini merupakan penelitian deskriptif, yaitu penelitian yang menjelaskan peningkatan soft skill dan elemen criting FRISCO (Focus, Reason, Inference, Situation, Clarity, Overview) pada fase pembelajaran criting lesson study. Teknik sampling yang digunakan adalah purposive sampling. Subjek penelitian adalah mahasiswa pendidikan matematika yang menempuh mata kuliah MKPBM 4. Data penelitian dikumpulkan melalui teknik observasi. Langkah-langkah penelitian diawali dengan kegaian plan (perencanaan), do (pelaksanaan) dan see (refleksi) antara dosen model (peneliti) dan observer. Hasil penelitian ini menunjukkan bahwa lesson study memberikan kontribusi positif dalam pembelajaran. Hal ini terlihat dari peningkatan soft skill mahasiswa mencapai rerata akhir 2,18 (pada taraf sedang) dan kemampuan berpikir kritis mencapai rerata 2,35 (pada taraf tinggi). Kontribusi tersebut mewujudkan keterbukaan dalam pembelajaran bagi semua pihak. Suatu kelas yang memiliki keterbukaan untuk semua orang akan memberikan dampak positif bagi dosen model, mahasiswa, dan observer.
CHEMICAL AND MINERALOGICAL PROPERTIES OF ULTISOLS OF SASAMBA AREA, EAST KALIMANTAN
Authors: Prasetyo B.H. , Suharta N. , H. Subagyo , Hikmatullah Hikmatullah 
Published: October 2016

Ultisols are a major group of marginal soils extensively found in the upland area of Indonesia. To better understand the potential of the Ultisols developed from claystone and sandstone in the Sasamba Integrated Economical Development Area in East Kalimantan, chemical and mineralogical characteristics of 27 Ultisols pedons consisting of 76 topsoil and 118 subsoil samples were investigated. Besides analysis and interpretation of data, relationships of several soil characteristics were constructed using simple regression. The results indicated that Ultisols showed acid to very acid reaction, had low content of organic matter and low base saturation. Soils generally exhibited net negative charge, and the point of zero charge was reached at pH 3.6. Both potential and available phosphates were low, and there was a trend that amorphous aluminum was responsible for phosphate fixation. The low content of exchangeable potassium in topsoil and subsoil indicated a positive correlation with potential potassium. Clay mineral was composed chiefly of kaolinite, with small amounts of illite, vermiculite, and quartz. The domination of kaolinite and low organic matter content causes the soils to have low cation exchange capacity. Soil management in this area should be focused on building up and maintaining soil fertility, and applying appropriate soil conservation techniques to minimize erosion. To obtain sustained productivity, various soil amendments including the use of farm and/or green manure, liming with agricultural lime, and application of rock phosphate and K fertilizers were highly recommended.
SOIL CONTROLLING FACTORS OF METHANE GAS PRODUCTION FROM FLOODED RICE FIELDS IN PATI DISTRICT, CENTRAL JAVA
Authors: Setyanto P. , A.B. Rosenani , Makarim A.K. , I. Che Fauziah , Bidin A. , Suharsih Suharsih 
Published: October 2016

Atmospheric methane (CH4) is recognized as one of the most important greenhouse gases. Methane, with some 15-30 times greater infrared-absorbing capability than CO2 on a mass basis, may account for 20% of anticipated global warming. Soils are one of the key factors, which play an important role in CH4 production and emission. However, data on CH4 emission from different soil types and the characteristics affecting CH4 production are lacking when compared to data on agronomic practices. This study was conducted to investigate the potential of CH4 production of selected soils in Java, and determine the limiting factors of CH4 production. The results showed that addition of 1% glucose to the soils led to an increase in CH4 production by more than twelve fold compared to no glucose addition. The CH4 production potential ranged between 3.21 and 112.30 mg CH4 kg-1 soil. The lowest CH4 production potential occurred in brown-grayish Grumosol, while the highest was in dark-gray Grumosol. Chemical and physical properties of the soils have great influence on CH4 production. Stepwise multiple regression analysis of CH4 production and soil characteristics showed that pH and the contents of Fe2O3, MnO2, SO4, and silt in the soil strongly influenced CH4 production. Results of this study can be used for further development of a model on CH4 emission from rice fields.
SOIL PROPERTIES OF THE EASTERN TOPOSEQUENCE OF MOUNT KELIMUTU, FLORES ISLAND, EAST NUSA TENGGARA AND THEIR POTENTIAL FOR AGRICULTURAL USE
Authors: Hikmatullah Hikmatullah , Subagyo H. , Prasetyo B.H. 
Published: October 2016

Kelimutu stratovolcano is one of the young volcanoes extensively found in Flores island. Studies on volcanic soil properties and their suitability for agricultural development in the whole island are lacking. The research was conducted to evaluate the relationship of elevation and soil properties, and suitability for agricultural development. Five representative pedons at elevation of 550, 1,000, 1,200, 1,400, and 1,600 m above sea level (asl), respectively, were studied in the field, and 22 soil samples were analyzed in the laboratory. The results indicated that elevation significantly affected soil properties and degree of soil weathering. With decreasing elevation, sand content, amorphous material content, and phosphate retention decreased. Concomitantly, clay content, H2O-pH, exchangeable Ca and Mg, base saturation, and soil-CEC increased. A highly positive correlation was shown between P retention and NaFpH, Al, and (Al+0.5 Fe) contents extracted by acid ammonium oxalate. Soil-CEC also showed significant positive correlation with clay and silt contents, organic carbon, and exchangeable Ca and Mg. Degree of weathering increased with decreasing elevation as reflected by decreasing silt/clay ratio. Soils developed from Entisols (Lithic Udorthents) at 1,600 m asl, to Andisols (Typic Hapludands) at 1,000-1,400 m asl, and Mollisols (Typic Hapludolls) at lower elevation down to 550 m asl. Soils at 1,400-1,600 m asl are unsuitable for agriculture. Soils at 1,000-1,200 m are moderately suitable for food crops, horticulture, and estate crops. Dominant limiting factors are steep slopes and P retention. Soils at 550 m asl are suitable for food and estate crops, and also lowland horticulture.
EFFECT OF PERMEABLE VESSEL CLOSURE AND GELLING AGENT ON REDUCTION OF HYPERHYDRICITY IN IN VITRO CULTURE OF CARNATION
Authors: Winarto B. , Aziz M.A. , Rashid A.A. , Ismail M.R. 
Published: October 2016

Hyperhydricity, an abnormal morphological appearance and physiological<br />function, is an important problem in carnation tissue culture. The problem causes premature flowering, high occurrence of abnormal shoots, difficulty in transferring hyperhydric plantlets to soil, and low survival rate of plantlets. High relative humidity and the water potential are considered as the key factors involved in the abnormality. Furthermore, permeable culture vessel and gelling agent were assured to be high potential treatment to eliminate it. Objective of this research was to reduce hyperhydricity in regenerants of carnation using different permeable vessel closures and gelling agents and to assess the multiplication and acclimatization abilities of recovered shoots. Experiment was arranged in randomized complete block design with four replications. First factor was different types of closure, i.e. cotton wool, plastic wrap, parafilm and aluminium foil, while second one was gelling agents, i.e. bacto agar, phytagel, swallow agar, and Type 900 agar. The recovered shoots were then multiplied, rooted, and acclimatized. The results showed that hyperhydricity was successfully reduced by applying permeable closure (cotton wool and plastic wrap) in combination with Type 900 agar. The<br />combination of plastic wrap and Type 900 agar was the most appropriate treatment in reducing hyperhydricity and producing good quality shoots. The treatment reduced the problem down to 23% of total condition of hyperhydricity (100%) and increased leaf chlorophyll content from 0.0883 to 0.1288 mg mg-1. The plastic wrap was easily applied and cheaper material compared to cotton wool. The recovered shoots were able to produce 1-3 healthy axillary shoots and easily rooted on half-strength MS. The recovered plantlets were simply acclimatized with survival rate up<br />to 100% on kossas peat + soil (1:1, v/v) and flowered 4-5 months after acclimatization with decreasing in number and size of flower.
Efficiency of Phosphorus Use for Dinitrogen Fixation Varies between Common Bean Genotypes under Phosphorus Limitation
Authors: Lazali Mohamed , Blavet Didier , Pernot Catherine , Desclaux Dominique , Drevon Jean Jacques 
Published: October 2016

Core Ideas
Phosphorus use efficiency may be classified as trait for P‐deficiency tolerance.
Low soil P availability is a limiting factor of the rhizobial symbiosis.
The increase of P content may be involved in the regulation of nodulation.
Low P availability in the soil is a major constraint to legume production, and efforts are being made to identify legume genotypes with tolerance to low P and greater phosphorus use efficiency (PUE) for N2 fixation. Common bean (Phaseolus vulgaris L.) genotypes vary in their adaptation to low‐P soils. To investigate to what extent this variation may be related to PUE for N2 fixation, six recombinant inbred lines (RILs) of common bean contrasting in PUE for symbiotic N2 fixation, namely RILs 147, 115, 104, 83, 34, and 29 were studied in the field conditions during four growing seasons from 2011 to 2015. We collected biomass (aboveground and belowground) at flowering stage, and both samples were analyzed P content. Results indicate that low‐P availability in the soil significantly limited plant growth, nodulation, and N2 fixation for all common bean RILs though with highest extent for common bean RILs 147, 83, and 29, whereas in this soil, common bean RILs 34 and 104 showed highest PUE for their N2 fixation. The genotypes with high PUE for N2 fixation showed greater mycorrhizal‐plant symbiosis activity rate than the genotypes with low PUE for N2 fixation. We also found a significant correlation between nodule biomass and nodule P content for all common bean RILs. We conclude that quantifying PUE for N2 fixation may contribute to characterize the level of adaptation of N2–fixing legumes to low‐P soils.
Intrapartum pneumomediastinum and subcutaneous emphysema
Authors: Denniss Hermione , Onofrei Mihaela , McCormick Alison 
Published: October 2016

SummarySpontaneous pneumomediastinum associated with subcutaneous emphysema (Hamman's syndrome) is a rare complication of pregnancy, usually occurring in the second stage of labour. We present one case of spontaneous subcutaneous emphysema presenting during the first stage of labour and discuss the pathophysiology, clinical presentation, treatment and prognosis of this condition. This case report highlights the importance of thorough anaesthetic follow‐up of parturients and team work between the midwives and anaesthetists, even though this patient's symptoms and signs were initially incorrectly attributed to the epidural anaesthetic.
Association of Preoperative Urinary Uromodulin with AKI after Cardiac Surgery
Authors: Garimella Pranav S. , Jaber Bertrand L. , Tighiouart Hocine , Liangos Orfeas , Bennett Michael R. , Devarajan Prasad , El-Achkar Tarek M. , Sarnak Mark J. 
Published: October 2016

Background and objectives
AKI is a serious complication after cardiac surgery. Although high urinary concentrations of the tubular protein uromodulin, a marker of tubular health, are associated with less AKI in animal models, its relationship in humans is unknown.

Design, setting, participants, & measurements
A post hoc analysis of a prospective cohort study of 218 adults undergoing on–pump cardiac surgery between 2004 and 2011 was conducted. Multivariable logistic and linear regression analyses were used to evaluate the associations of preoperative urinary uromodulin-to-creatinine ratio with postoperative AKI (defined as a rise in serum creatinine of >0.3 mg/dl or >1.5 times baseline); severe AKI (doubling of creatinine or need for dialysis) and peak postoperative serum creatinine over the first 72 hours.

Results
Mean age was 68 years, 27% were women, 95% were white, and the median uromodulin-to-creatinine ratio was 10.0 μg/g. AKI developed in 64 (29%) patients. Lower urinary uromodulin-to-creatinine ratio was associated with higher odds for AKI (odds ratio, 1.49 per 1-SD lower uromodulin; 95% confidence interval, 1.04 to 2.13), which was marginally attenuated after multivariable adjustment (odds ratio, 1.43; 95% confidence interval, 0.99 to 2.07). The lowest uromodulin-to-creatinine ratio quartile was also associated with higher odds for AKI relative to the highest quartile (odds ratio, 2.94; 95% confidence interval, 1.19 to 7.26), which was slightly attenuated after multivariable adjustment (odds ratio, 2.43; 95% confidence interval, 0.91 to 6.48). A uromodulin-to-creatinine ratio below the median was associated with higher adjusted odds for severe AKI, although this did not reach statistical significance (odds ratio, 4.03; 95% confidence interval, 0.87 to 18.70). Each 1-SD lower uromodulin-to-creatinine ratio was associated with a higher adjusted mean peak serum creatinine (0.07 mg/dl per SD; 95% confidence interval, 0.02 to 0.13).

Conclusions
Lower uromodulin-to-creatinine ratio is associated with higher odds of AKI and higher peak serum creatinine after cardiac surgery. Additional studies are needed to confirm these preliminary results.
Diet Soda Consumption and Risk of Incident End Stage Renal Disease
Authors: Rebholz Casey M. , Grams Morgan E. , Steffen Lyn M. , Crews Deidra C. , Anderson Cheryl A. M. , Bazzano Lydia A. , Coresh Josef , Appel Lawrence J. 
Published: October 2016

Background and objectives
Diet soda consumption is common in the United States and is associated with impaired glucose metabolism, diabetes, and metabolic syndrome.

Design, setting, participants, & measurements
We prospectively analyzed diet soda consumption, assessed by food frequency questionnaire at baseline (1987–1989) and a follow-up examination (1993–1995), and incident ESRD through December 31, 2012 in the Atherosclerosis Risk in Communities study (n=15,368).

Results
Baseline mean age of participants was 54 years, 55% were female, and 27% were black. The majority of participants (43.5%) consumed <1 glass/wk of diet soda; 17.8% consumed 1–4 glasses/wk; 25.3% consumed 5–7 glasses/wk; and 13.5% consumed >7 glasses/wk. Over a median follow-up of 23 years, 357 incident ESRD cases were observed. Relative to <1 glass/wk of diet soda, consuming 1–4 glasses/wk, 5–7 glasses/wk, and >7 glasses/wk, respectively, was associated with 1.08-times (95% confidence interval [95% CI], 0.75 to 1.55), 1.33-times (95% CI, 1.01 to 1.75), and 1.83-times (95% CI, 1.01 to 2.52) higher risk of ESRD after adjusting for age, sex, race-center, education level, smoking status, physical activity, total caloric intake, eGFR, body mass index category, diabetes, systolic BP, and serum uric acid (P value for trend <0.001). Results were similar after additional adjustment for dietary acid load, diet quality, dietary sodium, dietary fructose, sugar-sweetened beverages, and dietary phosphorus. Risk estimates were similar by body mass index category (P value for interaction = 0.82), but the association between diet soda and ESRD was only significant for those who were overweight or obese at baseline. Sugar-sweetened beverage consumption was not significantly associated with ESRD in the fully adjusted model.

Conclusions
Diet soda consumption was associated with higher ESRD risk in this general population sample. Further research is necessary to validate these findings in other study populations and to examine potential mechanisms through which diet soda could impact kidney disease.
Torre Latinoamericana: 50 años. Restauración de un testigo
Authors: Hernández Flores Fabiola 
Published: October 2016

En este artículo se toma la metodología de la biografía cultural propuesta por Arjun Appadurai para bosquejar el proceso de singularización de la Torre Latinoamericana, que parte de ser un edificio comercial construido en 1956 hasta llegar a las prácticas desencadenadas después de ser declarada Patrimonio Monumental de México en 1997. El objetivo es mostrar que la remodelación iniciada en 2002 opera como un proyecto de restauración física e histórica del rascacielos, donde se construye un discurso cultural conformado por episodios de la historia de la ciudad, del edificio y significantes propios del nacionalismo en México, que contribuye a generar y difundir en el imaginario urbano la noción de la Torre Latinoamericana como patrimonio, en calidad de objeto testigo.
Los siete colores de la pintura: tratadística y afirmación pública de la dignidad del arte en el siglo XVII novohispano
Authors: Mues Orts Paula 
Published: October 2016

En este artículo se narra la manera en que los pintores de la ciudad de México aprovecharon los festejos públicos de la mayoría de edad de Carlos II, en 1676, para reivindicar abiertamente el estatuto liberal e intelectual del arte del pincel, según se documenta en la relación contemporánea del poeta Alonso Ramírez de Vargas. Empleando el lenguaje de la emblemática, y el arte efímero, los artistas crearon un carro triunfal para presentar al arzobispo-virrey fray Payo Enríquez de Ribera sus demandas de reconocimiento profesional e hicieron una declaración pública de identidad corporativa que puede ayudar a explicar la reorganización del gremio de pintores de la capital novohispana a partir de 1681.
Miguel Cabrera y la congregación de la Purísima
Authors: Alcalá Luisa Elena 
Published: October 2016

Este artículo profundiza en la relación entre Miguel Cabrera y la Compañía de Jesús a través del análisis del retrato grabado que hizo del jesuita Juan Antonio de Oviedo y de su entorno social. Considera además la posibilidad de que el Miguel Cabrera que aparece como firmante oficial en el Libro de la Congregación de la Limpia Concepción de Nuestra Señora en 1761 sea el famoso pintor novohispano. Tratándose de una de las más prestigiosas congregaciones marianas de los jesuitas, se plantea cómo este tipo de noticias sobre las actividades socio-religiosas de los pintores amplían nuestro conocimiento no sólo de sus carreras sino también de los caminos de la pintura en una época en que se fraguaba un proyecto académico.
Bildwissenschaft. Una disciplina en construcción
Authors: Alvarez Portugal Tania Vanessa 
Published: October 2016

En su estudio, Introducción a la Bildwissenschaft, Gustav Frank y Barbara Lange presentan el estado de la Bildwissenschaft, una disciplina cuya constante construcción se ha enriquecido con planteamientos y sugerencias provenientes de diversas posturas y atendiendo a variadas interrogantes. La obra presenta la problemática actual de la Bildwissenschaft, así como reflexiones respecto al discurso historiográfico del arte, básicas para el historiador contemporáneo en el estudio de la imagen que abarca no sólo las tradicionalmente denominadas imágenes artísticas. La Introducción a la Bildwissenschaft, conjuga teoría e investigaciones a partir de ejemplos culturales, articulación que la vuelve sumamente inteligible, y la constituye como una obra de gran utilidad para el estudioso de la imagen y la cultura.
Dar presencia al cuerpo: prácticas performáticas en el tardofranquismo
Authors: Garbayo Maeztu Maite 
Published: October 2016

El presente artículo aborda las implicaciones estético-políticas de la presencia del cuerpo en las prácticas de performance que tuvieron lugar durante los últimos años de la dictadura franquista en España. Por medio del análisis de diversos performances, se abordan cuestiones relacionadas con la represión política, el feminismo, la construcción de género o los discursos corporales heredados del franquismo. El performance se presenta como estrategia a partir de la cual torcer el lenguaje, como lugar de excepción desde el que nombrar aquello que no puede ser dicho. Lo estético aparece como espacio en el que comparecen lo social, lo político o lo ético.