bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of contextual teaching and learning approach and motivation of learning on the ability of understanding the mathematics concepts of grade V student
Authors: Rama Yeni Yuvita , Syarifuddin Hendra , Ahmad Riska 
Published: August 2019

Abstract
The purpose of this study was to obtain information about the effect of the CTL approach and learning motivation on the ability to understand mathematical concepts in class V students. This research is a quasy type experimental research. The population is all students in class V SDN Gugus I Kecamatan Tanjung Harapan Solok City and the sample is 57 students in grade V SDN 01 Tanjung Paku. This sampling technique uses randomized sampling. Research data is obtained from the ability to understand mathematical concepts and questionnaires. The results of the study showed that: (1) The ability to understand mathematical concepts of students participating in learning with the Contextual Teaching and Learning approach was better than using conventional learning; (2) the ability to understand the mathematical concepts of students who have high learning motivation who follow learning with the Contextual Teaching and Learning approach is better than using conventional learning; (3) The ability to understand mathematical concepts of students who have low learning motivation who follow learning with the Contextual Teaching and Learning approach is better than using conventional learning; (4) There is no significant interaction between the Contextual Teaching and Learning approach and students ‘learning motivation on the ability to understand students’ mathematical concepts.
Model of socio-economic recovery of farmers in erupted areas of mount Sinabung in Karo Regency
Authors: Leonardo Nainggolan Hotden , Ginting Albina , Tampubolon Jongkers , Aritonang Johndikson , Rudianto Saragih Jef 
Published: August 2019

AbstractThis study aims to find a model of socio-economic recovery of farmers in erupted areas of Mt. Sinabung in Karo Regency. The study was conducted in Payung and Namanteran Districts with a sample of 30 respondents determined purphosically, with descriptive research methods. The result of research; a) Social recovery of farmers carried out by the government through community group development, customs are still minimal, b) Training on adaptation/mitigation technology related to farming for the process of socio-economic recovery has not been optimal, c) There has been no use of new varieties that are tolerant of diversity that match power support land, d) There is no access to cooperation with partners for the agricultural product market. In accordance with the results of the study it is recommended; a) Efforts are needed to restore the socio-economic conditions of farmers, through empowerment to improve the ability of farmers, b) A holistic approach is needed to touch all aspects of socio-economic farmers, c) The government must provide free space for farmers to increase their socioeconomic strata through activities that productive nature, d) The government must carry out a specific identification process to determine the slow process of recovery in the socio-economic area of farmers affected by eruption.
Estimations of limestone resources using three dimension block kriging method, a case study: limestone sediment at PT Semen Padang
Authors: Gusman M , Muchtar B , Syah N , Akbar M D , Deni A V 
Published: August 2019

Abstract
Making of block model was performed by geostatistic approach using kriging method to estimate and modeling of limestone source quality at Karang Putih Hill. Modeling and counting of source were based on three-dimension block model concept which was divided into block units with grid size 100 100 15 m which was appropriate with the size of mining block at location of the study. Variable used for limestone source estimation were CaO, SiO2and H2O levels, according to conditions of raw material quality which has been specified.The result from variogram analysis showed that spatial characteristic of CaO, SiO2 and H2O levels in limestone had nugget effect percentage of 47, 36%, 30, 92%, dan 33, 3% with range 145 - 230 m and range for vertical direction 21 - 40 m. Percentage (%) error of limestone estimation with confidence level 95% for CaO level were 54, 74% 0, 04%, SiO2: 0, 72% 0, 04% and H2O: 0, 36% ± 0, 007% respectively. Limestone resource quantity estimation at Karang Putih Hill up to elevation 214 meters above sea level which fulfilled the standard quality of CaO level ≥ 48 %, SiO2 level < 10%, and H2O level < 6 % was 158, 01 million ton, while tonnase in the form of 799, 94 thousand ton of silica and 1, 17 million ton of basalt.
Dynamic model of land use change in landslide hazard zones in Tanah Datar District, West Sumatra
Authors: Umar Iswandi , Dewata Indang , Barlian Eri 
Published: August 2019

Abstract
Population growth has an impact on land resource needs, pressure on land use will have an impact on environmental degradation. As an effort to reduce pressure, policy efforts in land use are needed. This study aims to develop dynamic models in land use and develop land use policy direction.The method used in dynamic modeling uses system analysis and land change policy direction using ISM analysis. In dynamic modeling, land use change uses three scenarios, namely: optimistic scenario, muder scenario, and pessimistic scenario. In determining the direction of the policy involving all stakeholders as many as 15 experts. The results of dynamic model analysis show that forest area changes from time to time of 1.6 percent per year. Changes in forest areas will have an impact on increasing environmental disasters. As an effort to save the environment, there is a need for law enforcement and strict sanctions against perpetrators of forest area destruction.
Transmission of dengue hemorrhagic fever and climate variability in Jakarta
Authors: Kusnoputranto Haryoto , Maria Sintorini Margareta , Warno Utomo Suyud , Aliyyah Nurusysyarifah , Ria Kristina Sinaga Epi , Assetya Pratiwi Okky 
Published: August 2019

Abstract
Dengue hemorrhagic fever (DHF) has become an endemic in major cities in Indonesia. The climate change and poor level of awareness and knowledge of the community in Indonesia have caused an increase in the DHF cases. Outbreaks on January until April 2015, the morbidity rate reached 50.75. In 1996, the Intergovernmental Panel on Climate Change (IPCC) predicted threefold increase in the dengue hemorrhagic fever incidents in Indonesia by 2070, if the environment and community conditions do not improve. This study aims to provide a dynamic model to predict the dynamics of the DHF incidents based on climate variability in the Special Capital Region of Jakarta. The design of this study was ecologic study with hypothesis test, modelling, simulation, and intervention. In collecting the data, interview with respondents and measurement of climate variables were conducted. Interviews with respondents include the level of knowledge, attitudes, and behaviour (PSP) of the community. Measurements of climate factors include rainfall, temperature, humidity and CO2 level in the ambient environment. The DHF system dynamics model simulation shows that the significant effect on the decline of Breeding Places and the decrease of DHF cases were achieved by increasing the participation of the community to actively control water places that are potential for mosquito breeding places.
Examining the effectiveness of prodira policy on improving human development index at Province of Gorontalo
Authors: Arwildayanto  
Published: August 2019

Abstract
The purpose of this study was to determine the effectiveness of the implementation of an education program for the local people policy - Program Pendidikan untuk Rakyat (PRODIRA) in the improvement of Human Development Index (HDI) in the Province of Gorontalo. Through PRODIRA the local government has already issued the regional budget (APBD), which the impact of the budget allocation will be measured by the HDI. The research approach employed a qualitative method of semi-structured interview, observation, and focus group discussion on key informants, which involved in compilation and implementation of the PRODIRA in Gorontalo Province. The study result showed that the PRODIRA provided acceleration on educational equity for the population aged 16-18 years, which enrolled at the level of secondary education. PRODIRA has also significantly impact in increasing the Human Development Index of Gorontalo Province during 2012-2016, that it proved by the increasing the literacy rate from 95% to 99.81%, the average number of school years from 8 years to 12.88 years. The result also revealed that the PRODIRA is able to reduce levies in some schools and it increase acceleration of all education services to school age 16-18 years through accelerated national education service. The research recommended that the central government needs to encourage local governments to innovate in developing the PRODIRA in order to achieve the target of to ards the nation of Indonesia is independent and highly competitive in 2025.
The role of gender as a model of climate change adaptation in fisherman settlement communities
Authors: Riviwanto M , Basuki A 
Published: August 2019

Abstract
Women are the largest proportion of the world’s poor, including children and young women. Women are very vulnerable to climate change. But until now gender considerations are still not explicitly stated in various climate change policies. In the marine and fisheries sector, extreme climate change makes many fishermen unable to go to sea and fish declines. The unequal division of gender roles causes the level of vulnerability to climate change to differ between women and men. This study aims to analyze the vulnerability and gender roles of fishing communities due to climate change in West Sumatra. A positivistic-deductive research approach. Indicators / parameters used by the index to measure vulnerability in 2 coastal areas, namely Bungus Beach and Pariaman Beach. Secondary data obtained from the Geophysical Meteorology Agency station. Primary data through interviews with questionnaire tools on 60 respondents. The vulnerability model (V) is a function of exposure (E), sensitivity (S), and adaptive capacity (AC), which are then expressed mathematically. The results showed a vulnerability index of 305 with a vulnerable classification. Efforts to increase adaptive capacity and reduce women’s vulnerability to climate change through a comfortable place to live, better access to climate change information and livelihood options. Gender-based climate change adaptation models for coastal areas are increasing women’s political role, increasing women’s skills capacity through field schools Climate and enhancement productive work.
The identifications of the availability of facilities and infrastructure at the temporary evacuation of Padang
Authors: Rita Eva , Carlo Nasfryzal , Sugiono  , Bakar Yusrizal 
Published: August 2019

Abstract
The building of Temporary Evacuation Sites (shelter tsunami) has been done in West Sumatra. One of them is the Padang shelter, located in North Ulak Karang Village, Padang. The location has met the requirement of PEMA 646. However, the facilities and infrastructure are still insufficient. Consequently, this study is conducted to inventory, analyze and recommended the facilities and infrastructure so that the mitigation of tsunami disaster will be optimal. The method used is descriptive evaluative, method by doing field observations. The data in the field is tabulated and analysed based on Regulation of Public Works No 19 / PRT / M / 2001, Indonesian National Standard number 7766: 2012, and 7743: 2011. The results of the study show that the early warning facility (EWS) has functioned well, the logistics room, medical room, public kitchen, and warehouse have not got the equipment yet; clean water and electricity have not functioned. There are 22 evacuation road meeting the wide requirement of environment streets out of 71 existing streets, evacuation signs on 9 streets. To cope with tsunami disaster risk optimally, Padang shelter needs to be equipped with public facilities, additional evacuation maps, evacuation signs, and the improvement of evacuation streets to Padang shelter.
Soil chemistry, and not short-term (1–2 year) deer exclusion, explains understory plant occupancy in forests affected by acid deposition
Authors: Begley-Miller Danielle R , Diefenbach Duane R , McDill Marc E , Drohan Patrick J , Rosenberry Christopher S , Just Domoto Emily H 
Published: August 2019

AbstractThe loss of species diversity and plant community structure throughout the temperate deciduous forests of North America have often been attributed to overbrowsing by white-tailed deer (Odocoileus virginanus). Slow species recovery following removal from browsing, or reduction in deer density, has been termed a legacy effect of past deer herbivory. However, vegetation legacy effects have also coincided with changes to soil chemistry throughout the north-eastern USA. In this paper, we assess the viability of soil chemistry (i.e. pH, extractable nutrients and extractable metals) and other factors (topography, light, overstory basal area and location) as alternative explanations for a lack of vegetation recovery. We compared the relative effects of soil chemistry, site conditions and short-term (1–2 year) deer exclusion on single-species occupancy probabilities of 10 plant taxa common to oak-hickory forests in central Pennsylvania. We found detection for all modelled species was constant and high (p^ > 0.65), and occupancy probability of most taxa was best explained by at least one soil chemistry parameter. Specifically, ericaceous competing vegetation was more likely to occupy acidic (pH < 3.5), base cation-poor (K < 0.20 cmolc kg−1) sites, while deer-preferred plants were less likely to occur when soil manganese exceeded 0.1 cmolc kg−1. Short-term deer exclusion did not explain occupancy of any plant taxon, and site conditions were of nominal importance. This study demonstrates the importance of soil chemistry in shaping plant community composition in the north-central Appalachians, and suggests soil as an alternative, or additional, explanation for deer vegetation legacy effects. We suggest that the reliance on phyto-indicators of deer browsing effects may overestimate the effects of browsing if those species are also limited by unfavourable soil conditions. Future research should consider study designs that address the complexity of deer forest interactions, especially in areas with complex site-vegetation histories.
Phenotypic and genetic divergence in reed frogs across a mosaic hybrid zone on São Tomé Island
Authors: Bell Rayna C , Irian Christian G 
Published: August 2019

AbstractAlthough naturally heterogeneous environments can lead to mosaic hybrid zones, human-induced habitat fragmentation can also lead to environmental heterogeneity and hybridization. Here we quantify phenotypic and molecular divergence across a reed frog mosaic hybrid zone on São Tomé Island as a first step towards understanding the consequences of hybridization across this heterogeneous landscape. The São Tomé giant reed frog (Hyperolius thomensis) is strongly tied to cool, wet, forest habitats whereas the distribution of Moller’s reed frog (H. molleri) spans cool, wet, forests to warm, dry, disturbed habitats. Correspondingly, hybridization is concentrated in the more forested, cool, wet sites relative to non-forested, warmer, drier habitats. Four of six sites with hybrid frogs are artificial water bodies near the forest edge, indicating that both breeding habitat and broader scale environmental variation are probably important for understanding interspecific interactions and the extent of hybridization in this system. Phenotypic variation (body size and ventral coloration) largely tracks genetic and environmental variation across the hybrid zone with larger and more pigmented frogs occurring in forested, cool, wet habitats. Understanding whether human-induced changes in habitat break down reproductive barriers will be essential for conservation management of the less abundant, forest-associated H. thomensis in the face of rampant hybridization.
Eradication of a Multidrug-Resistant, Carbapenemase-Producing Klebsiella pneumoniae Isolate Following Oral and Intra-rectal Therapy With a Custom Made, Lytic Bacteriophage Preparation
Authors: Corbellino Mario , Kieffer Nicolas , Kutateladze Mzia , Balarjishvili Nana , Leshkasheli Lika , Askilashvili Lia , Tsertsvadze George , Rimoldi Sara Giordana , Nizharadze Deia , Hoyle Naomi , Nadareishvili Lia , Antinori Spinello , Pagani Cristina , Scorza Daniele Giuseppe , Romanò Ai Ling Loredana , Ardizzone Sandro , Danelli Piergiorgio , Gismondo Maria Rita , Galli Massimo , Nordmann Patrice , Poirel Laurent 
Published: August 2019

Abstract
In July 2017, a patient presented colonization with a multidrug-resistant, carbapenemase (KPC-3)-producing Klebsiella pneumoniae isolate. A custom-made, lytic bacteriophage preparation was administered to the patient in December 2017, with subsequent eradication of the microorganism and without adverse effects.
Validating biochemical features at the genome level in the Antarctic bacterium Hymenobacter sp. strain UV11
Authors: Marizcurrena Juan José , Herrera Lorena M , Costábile Alicia , Morales Danilo , Villadóniga Carolina , Eizmendi Agustina , Davyt Danilo , Castro-Sowinski Susana 
Published: August 2019

ABSTRACT
We present experimental data that complement and validate some biochemical features at the genome level in the UVC-resistant Antarctic bacterium Hymenobacter sp. UV11 strain. The genome was sequenced, assembled and annotated. It has 6 096 246 bp, a GC content of 60.6% and 5155 predicted genes. The secretome analysis, by combining in silico predictions with shotgun proteomics data, showed that UV11 strain produces extracellular proteases and carbohydrases with potential biotechnological uses. We observed the formation of outer membrane vesicles, mesosomes and carbon-storage compounds by using transmission electron microscopy. The in silico analysis of the genome revealed the presence of genes involved in the metabolism of glycogen-like molecules and starch. By HPLC–UV–Vis analysis and 1H-NMR spectra, we verified that strain UV11 produces xanthophyll-like carotenoids such as 2′-hydroxyflexixanthin, and the in silico analysis showed that this bacterium has genes involved in the biosynthesis of cathaxanthin, zeaxanthin and astaxanthin. We also found genes involved in the repair of UV-damaged DNA such as a photolyase, the nucleotide excision repair system and the production of ATP-dependent proteases that are important cellular components involved in the endurance to physiological stresses. This information will help us to better understand the ecological role played by Hymenobacter strains in the extreme Antarctic environment.
Adjoint inversion of the thermal structure of Southeastern Australia
Authors: Mather B , Moresi L , Rayner P 
Published: August 2019

SUMMARY
The variation of temperature in the crust is difficult to quantify due to the sparsity of surface heat flow observations and lack of measurements on the thermal properties of rocks at depth. We examine the degree to which the thermal structure of the crust can be constrained from the Curie depth and surface heat flow data in Southeastern Australia. We cast the inverse problem of heat conduction within a Bayesian framework and derive its adjoint so that we can efficiently find the optimal model that best reproduces the data and prior information on the thermal properties of the crust. Efficiency gains obtained from the adjoint method facilitate a detailed exploration of thermal structure in SE Australia, where we predict high temperatures within Precambrian rocks of 650 °C due to relatively high rates of heat production (0.9–1.4 μW m−3). In contrast, temperatures within dominantly Phanerozoic crust reach only 520 °C at the Moho due to the low rates of heat production in Cambrian mafic volcanics. A combination of the Curie depth and heat flow data is required to constrain the uncertainty of lower crustal temperatures to ±73 °C. We also show that parts of the crust are unconstrained if either data set is omitted from the inversion.
Automation of cleaning and reconstructing residential address histories to assign environmental exposures in longitudinal studies
Authors: Fecht Daniela , Garwood Kevin , Butters Oliver , Henderson John , Elliott Paul , Hansell Anna L , Gulliver John 
Published: August 2019

Abstract

Background
We have developed an open-source ALgorithm for Generating Address Exposures (ALGAE) that cleans residential address records to construct address histories and assign spatially-determined exposures to cohort participants. The first application of this algorithm was to construct prenatal and early life air pollution exposure for individuals of the Avon Longitudinal Study of Parents and Children (ALSPAC) in the South West of England, using previously estimated particulate matter ≤10  µm (PM10) concentrations.

Methods
ALSPAC recruited 14 541 pregnant women between 1991 and 1992. We assigned trimester-specific estimated PM10 exposures for 12 752 pregnancies, and first year of life exposures for 12 525 births, based on maternal residence and residential mobility.

Results
Average PM10 exposure was 32.6  µg/m3 [standard deviation (S.D.) 3.0  µg/m3] during pregnancy and 31.4 µg/m3 (S.D. 2.6  µg/m3) during the first year of life; 6.7% of women changed address during pregnancy, and 18.0% moved during first year of life of their infant. Exposure differences ranged from -5.3  µg/m3 to 12.4  µg/m3 (up to 26% difference) during pregnancy and -7.22  µg/m3 to 7.64  µg/m3 (up to 27% difference) in the first year of life, when comparing estimated exposure using the address at birth and that assessed using the complete cleaned address history. For the majority of individuals exposure changed by &lt;5%, but some relatively large changes were seen both in pregnancy and in infancy.

Conclusions
ALGAE provides a generic and adaptable, open-source solution to clean addresses stored in a cohort contact database and assign life stage-specific exposure estimates with the potential to reduce exposure misclassification.