Peningkatan Minat Peserta Didik Dalam Pembelajaran Tematik Terpadu Menggunakan Pendekatan Saintifik Di SD

The purpose of this study to describe the increasing interest of learners in an integrated thematic learning to use scientific approach in Public Elementary School Fourth Grade 28 Nanga Tayap Ketapang. The method used in this research is descriptive method of research is a survey studies Form. Type class action research. Subjects in this study were educators and learners who totaled 20 people. Interest students in learning from initial research by 23.33% increase in cycle 3 of 80.00% an increase of 56.67%. Attention students also increased from the initial research by 28.00% increase in cycle 3 of 93.00% an increase of 65.00%. The willingness of students to follow the lessons of the early research of 18.33% increase in cycle 3 of 86.67% an increase of 68.34%. With a scientific approach shows learners learning activities at State Elementary School fourth grade 28 Nanga Tayap more interesting, inspire creativity, fun and meaningful for learner

Analysis of Ultramafic Rocks Weathering Level Using the Magnetic Susceptibility in Konawe Regency, Southeast Sulawesi, Indonesia

The Konawe region is part of the Sulawesi Southeast Arm ophiolite belt where ultramafic rocks are exposed in the form of dunite and peridotite. The formation of nickel deposits is closely related to the weathering process of ultramafic rocks as a source rock. Ultramafic rocks exposed to the surface will experience weathering which is influenced by many factors, including in the form of climate change, topography, and existing geological structures. The weathering process in the source rock can influence variations in chemical elements and magnetic properties in laterite soil profiles. For example, the chemical weathering might affect magnetic mineralogy and the physical weathering could affect granulometry as well as the quantity of magnetic minerals in the soil. Condition of weathering of ultramafic rocks (initial, moderate and advanced) can affect nickel content in laterite sediments. The weathering profile study of serpentine mineral is an indication of the lateralization process that occurs in ultramafic rocks and is carried out through petrographic analysis of thin cuts and polish cuts. Determination of weathering level like this is based on the level of weathering of the mineral serpentine. In this study, the determination of the weathering level of ultramafic rocks (initial, moderate, and continued) uses magnetic susceptibility parameter. A total of 232 ultramafic rock core samples obtained from 34 hand samples were taken from different places and weathered levels were analyzed. The results of the research have shown that the magnetic susceptibility of ultramafic rocks in the study area varies, from 580 x 10-6 SI to 4.724 x 10-6 SI. Based on the value of magnetic susceptibility, magnetic minerals contained in ultramafic rock samples are hematite and geotite minerals. This means that the weathering level of ultramafic rock samples is the continued weathering level. The level of continued weathering that occurs in ultramafic rocks in the study area produces nickel laterite deposits with a nickel content of 1.65 - 2.40% in the saprolite zone, 0.42% in the saprock zone, and 0.20 - 0.51% in the basic rock zone (bedrock)

Changes in Yogurt Fermentation Characteristics, And Antioxidant Potential And In Vitro Inhibition Of Angiotensin-1 Converting Enzyme Upon The Inclusion Of Peppermint, Dill And Basil

The present study investigated the effects of peppermint (Mentha piperita), dill (Anethum graveolens) and basil (Ocimum basilicum) on yogurt formation, proteolysis and inhibition of angiotensin-1 converting enzyme (ACE). Herbal-yogurts had faster rates of pH reduction than plain-yogurt. All herbal-yogurts had higher (p < 0.05) antioxidant activities than plain-yogurt, both at the end of fermentation and throughout the storage period. The o-phthalaldehyde (OPA) peptides in herbal-yogurts increased by 28 -36% after 7 days of storage. All herbal-yogurts showed higher anti-ACE activity than plain-yogurt at corresponding storage periods. M. piperita yogurt had highest inhibitory effect on ACE activity throughout the storage period. Peppermint, dill and basil may be used to modify microbial fermentation of milk with the intention of producing dairy products with higher antioxidant and enhanced anti-ACE activities. (C) 2011 Elsevier Ltd. All rights reserved

Hybrid web page prediction model for predicting a user's next access

The web user sessions are clustered with incorporating the sequence of web page visits. A sequence-based clustering is developed by proposing new sequence representations and new similarity measures. The resulting sequence representation allows for calculation of similarity between web user sessions and then, can be used as input of clustering algorithms. This study proposed a hybrid prediction model (HyMFM) that integrates Markov model, Association rules and Fuzzy Adaptive Resonance Theory (Fuzzy ART) clustering together. The three approaches are integrated to maximize their strengths. A series of experiments was conducted to investigate whether, clustering performance is affected by different sequence representations and different similarity measures. This model could provide better prediction than using each approach individually

SPATIO-TEMPORAL ESTIMATION OF INTEGRATED WATER VAPOUR OVER THE MALAYSIAN PENINSULA DURING MONSOON SEASON

This paper provides the precise information on spatial-temporal distribution of water vapour that was retrieved from Zenith Path Delay (ZPD) which was estimated by Global Positioning System (GPS) processing over the Malaysian Peninsular. A time series analysis of these ZPD and Integrated Water Vapor (IWV) values was done to capture the characteristic on their seasonal variation during monsoon seasons. This study was found that the pattern and distribution of atmospheric water vapour over Malaysian Peninsular in whole four years periods were influenced by two inter-monsoon and two monsoon seasons which are First Inter-monsoon, Second Inter-monsoon, Southwest monsoon and Northeast monsoon

Characteristics of Ultramafic Igneous Rock Ofiolite Complex in Asera District, North Konawe Regency Southeast Sulawesi Province, Indonesia

The research area is located in Asera District, North Konawe Regency, Southeast Sulawesi Province which has ultramafic rock lithology. The purpose of this study is to determine the characteristics of ultramafic igneous rocks using petrographic and geochemical analysis. Petrographic analysis aims to determine the types and abundance of minerals present so that rock types can be determined based on the classification of Travis (1955) and Streckeisen (1976). The geochemical analysis aims to determine the oxide/major element so that it can determine the type of magma based on the AFM classification according to Irvine and Baragar&nbsp; (1971) and the origin of the magma / original rock formation environment based on Pearce (1977).&nbsp; Petrographic analysis results showed that ultramafic rocks in the study area consisted of 2 types of rocks namely peridotite consisting of wherlit and lherzoite and serpentinite.&nbsp; The results of geochemical analysis indicate that the type of magma in the study area is thoellitic series and the origin of the magma/rock formation environment comes from the expansion of the oceanic floor or mid oceanig ridge (MOR) which is ultramafic

Development and characterization of cellulose modified surface with allylthiourea as functional sites to remove basic red 5 from aqueous solution

In this work, the removal of Basic Red 5 (BR5) by using cellulose modified surface with allylthiourea as functional sites (CMS) was studied. CMS was prepared by acidification and then the activated cellulose was mixed with allylthiourea (AT) in acetonitrile to attached AT onto activated cellulose. There were five parameters have been studied including kinetic study, pH effect, saturation study, FTIR analysis and elemental analysis. As a result, the higher the concentration of the BR5 in the solution, the higher the percentage of removal. The most efficient pH to remove the BR5 by the CMS was at pH 7 with 80% of removal. pH effect gives significant impact in this work. Carbon, hydrogen and nitrogen content were found to be slightly increased after adsorption of BR5 due to BR5 was loaded with some additional of elements such as carbon, hydrogen and nitrogen. However, the sulfur content shows slightly decreased after adsorption of the BR5 due to the contribution of active functional sites of CMS depends on the thiol functional groups. However, the sulfur content shows slightly decreased after adsorption of the dye might be due to the contribution of active functional sites of CMS was depends on the thiol functional groups which has been bonded chemically with the BR5 during separation process in batch mode

Interpretation of atmospheric wet delay in the tropical region using space-based radiometer system

Due to the inherent advantages of monitoring from space, and developments in sensor technology, satellite altimeters have brought about a revolution in the field of weather forecasting as they can measure atmospheric conditions using an onboard instrument called a passive microwave radiometer over the ocean areas. Since tropospheric wet delay in the atmosphere is one of the limiting factors to satellite altimeter measurement range, it is important for weather and climate predictions. The methods that can be used to measure wet delay are satellite altimeter, Global Positioning Systems (GPS), and Radiosonde. Weather satellites offer some potential advantages over conventional methods as they can cover marine areas, whereas conventional weather networks cover only about 20% of the globe, which are land areas using point -based solutions. A combination of these methods will improve tropospheric wet delay studies. The focus of this study was to evaluate wet delay data using radiometer measurements for tropical regions. The 10 altimeter missions used for this study consisted of ERS-1, ERS-2, Envisat, Jason-1, Jason-2, Jason-3, SARAL, Sentinel, TOPEX, and Poseidon. This study used the Radar Altimeter Database System or RADS to extract wet tropospheric corrections from radiometer measurements in the Malaysian region. The expected result was to evaluate the wet delay pattern in marine areas in tropical regions during the monsoon season. This study would also verify wet delay data from satellite altimeters with GPSderived data at 12 GPS MyRTKnet Stations in Malaysia and the European Centre for Medium- Range Weather Forecast (ECMWF) Global Tropospheric model. The verification results showed that the RMSE between altimetry-derived wet delay with GPS-derived wet delay and the ECMWF model were both about 1cm to 15cm. The observed data also gave reasonable values for the wet and dry seasons because the MyRTKnet and the ECMWF model from satellite altimeters only had slight differences. Altimetry-derived wet delay studies are very important to climate and weather forecasting and many kinds of research in marine areas and tropical regions

Serpentinization Study On Ultramafic Rock at Morombo Area, Lasolo Islands District, North Konawe Regency, Southeast Sulawesi, Indonesia

The research is in Morombo area, North Konawe Regency, Southeast Sulawesi. The purpose of this study was to determine the characteristics of serpentinized ultramafic rock and serpentine paragenesis. Research was conducted using&nbsp; field observations and laboratory analysis consisting of petrographic and geochemical analysis&nbsp; in the form of X-Ray Fluorosence (XRF). Petrographic analysis was carried out to identify the mineral content and textures in the rock and to determine the percentage of serpentine mineral presence. Both of these rocks are petrographically dominated by primary minerals olivine and clinopyroxine and secondary minerals namely lizardite, chrysotile, antiorite and opaque minerals. The XRF analysis was to determine the elements of Ni, Fe, Co, MgO, SiO2, CaO, Al2O3 and P in ultramafic rocks. The results of petrographic analysis show that serpentinized ultramafic rocks in the study area consist of serpentinized dunite and serpentinized peridotite. The formation of clay minerals in rocks does not occur because of the low serpentinization process in the rock. The results of XRF analysis showed that all samples in the bedrock showed Ni content above 0.2%. This is caused by the enrichment of Ni which is interpreted as a result of the serpentinization process along with the formation of lizardite in the rock. The serpentinization sub-processes in the study area comprised by hydration, serpentine recrystallization, and deserpentinization. Serpentine paragenesis is formed from the mid-oceanic ridge ocean floor, the orogenic phase to weathering. Substitution of Mg by Ni in ultramafic rocks will produce Ni-Serpentin. It is estimated that in the research area lizardite and chrysotile lizardite and chrysotile are the causes of Ni enrichment in bedrocks. The serpentinization characteristics of ultramafic rocks in the study area show a low to moderate level of serpentinization