bluuebunny/crossref_metadata_2025_split huggingface dataset:
Brain responses to high frequencies (270 Hz-480 Hz) changes due to vibratory stimulation of human fingertips: An fMRI study
Authors: Seri F A S , Abd Hamid A I , Abdullah J M , Idris Z , Omar H 
Published: April 2020

Abstract
This fMRI study investigated the effects of vibratory stimulation on somatosensory areas during high-frequencies stimulation using a piezoelectric finger stimulation system during an fMRI scan. Twelve healthy right-handed subjects were stimulated at 270 Hz-480 Hz and the fMRI dataset was analysed to generate the activated regions due to the high-frequencies stimulation. The activated regions were identified and thresholded at Puncorrected<0.001 for multiple comparisons. The average effect of frequencies revealed significant activation in the left thalamus, right inferior parietal gyrus, right medial frontal gyrus, and right precuneus whereas the main effect of frequencies revealed significant activation in the left thalamus. The positive effect of frequencies displayed significant activation in the left pallidum, right amygdala, right superior temporal gyrus, right medial temporal gyrus. The vibratory stimulation at a frequency of 330 Hz and 360 Hz (330 Hz<360 Hz) revealed a significant difference in the left thalamus. Findings indicated the role of the secondary somatosensory areas processing and transporting sensory information to perform the perceptual and cognitive function.
Radiation dose management in CT imaging: Initial experience with commercial dose watch software
Authors: Osman N D , Isa S M , Karim N K A , Ismail N , Roslee M A A M , Naharuddin H M , Razali M A S M 
Published: April 2020

Abstract
In this study, a patient dose tracking software was utilised for the management patient doses and optimisation of scanning protocols for computed tomography (CT) imaging. This study aimed to evaluate the used of GE DoseWatch software for local dose tracking and management. The commercial DoseWatch software was first installed at Imaging Unit, Advanced Medical and Dental Institute, Universiti Sains Malaysia (AMDI, USM), Penang on November 2018. All the CT scans were tracked by this software connected on-line to the Siemens SOMATOM AS+ CT scanner and GE Discovery SPECT/CT scanner. A total of 361 CT dose dataset were evaluated during the period of 10 months started from November 2018 until August 2019. From the initial experience, this software allows rapid and reliable collection and management of the CT dose data involving large number of examinations. From comparative study with our established local dose reference level, the mean DLP for few CT protocols exceeded the LDRLs such as TAP (10%), Routine Brain (89%), and HeadRoutine (38%) CT study which need further assessment and audit on the current local CT protocols. However, implementation of the software required knowledgeable and well-trained user for the full-benefits. Accurate data and protocol types should also be selected by the users during the CT scanning as it will influence the whole process of dose tracking and management on the software.
Validation of kVp measurement using the HVL approach for standard beam qualities for mammography
Authors: Ismail Wan Hazlinda , Kabir Norlaili A 
Published: April 2020

Abstract
In mammography imaging, the most common target material used in mammography machines are Molybdenum (Mo) target with Mo filters. In the publication of International Electrotechnical Commission (IEC) 61267, the establishment of mammography beam qualities assembly are given in 3 fixed parameters namely the target material which is Mo, the Mo filter thickness and the tube voltage. While, Mo target with rhodium (Rh) filters combination standard beam qualities were established by the Physikalish-Technische Bundesanstalt (PTB) primary standard Laboratory. The objective of this study is to measure the kVp and HVL ranging from 23-31 kV. Later compare the displayed kilovoltage peak (kVp) on the control panel with the kVp measured using a non-invasive kVp meter and validating them with the HVL measurement. From the results, the kVp dialed and kVp measured shows significant difference by 2-4 kV. The HVL measured for the kVp before and after corrected also shows similar pattern, where the HVL after kVp is correct is almost identical to the standard beam qualities with the difference of 1%. This verifies that the kVp measurement using a non-invasive kVp meter can be validated with just a simple measurement of its HVL for mammography standard beam qualities.
Effects of different volumes of inhomogeneous medium to the radial dose and anisotropy functions in HDR brachytherapy
Authors: Ab Shukor N S , Musarudin M , Abdullah R , Abd Aziz M Z 
Published: April 2020

Abstract
The aim of this study is to study the effects of non –homogenous region closer to the HDR Brachytherapy source. Radial widths of 1, 3 and 5 cm of an inhomogeneous cylindrical area filled with bone and lung tissue in a water phantom are modelled in this study. The effects of this inhomogeneity to the g(r) and F(r,θ) of Nucletron 192Ir microSelectron HDR source are assessed. The results show that the assumption of homogeneous water leads to underestimation of the bone dose by the treatment planning system. Meanwhile, overestimation of the dose is observed in the surrounding area. A relative difference of up to 19% is calculated for the largest bone volume. Contrast results are observed for the lung inhomogeneity model. A relative difference of up to 12% is observed in the lung dose. The presence of inhomogeneous region in the water phantom affects the anisotropy function; at a radial distance greater than 5 cm. Our results indicate that the presence of bone and lung inside the water phantom affect the g(r) and F(r,θ) in HDR brachytherapy. The degree of the effects depends on the material, position and volume of the inhomogeneity area.
Forests and emerging infectious diseases: unleashing the beast within
Authors: Guégan Jean-François , Ayouba Ahidjo , Cappelle Julien , de Thoisy Benoît 
Published: April 2020

Abstract
Deforestation and associated changing landscapes are major components of environmental changes, with important implications for ecosystem functioning and biodiversity conservation. Tropical forests are hot spots of biodiversity and provide multiple goods and ecosystem services which benefit people in many ways. Forests also play an important role in health-related legends, myths, and fairy tales from all over the world, and are important sources of new potential emerging microbial threats to humans. Although plausibly numerous abundant microbial forms with a forest origin may exist, our systematic literature review shows that forest-derived infection studies are relatively unexplored, and both taxonomically and geographically biased. Since biodiversity has been associated with emergence of novel infectious diseases at macro-scale, we describe the main biogeographical patterns in the emerging infection-biodiversity-forest loss nexus. Then, we illustrate four fine-scale case studies to decipher the underlying processes of increased infection risk in changing forest clearing landscapes. Finally, we identify scientific challenges and regional management measures required to mitigate these important new emerging threats.
Dynamical response of atmospheric circulation to below-normal East Sea sea surface temperatures associated with heavy snowfall in eastern Korea
Authors: Kim Taekyun , Kim Yoonjae , Moon Jae-Hong , Jin Emilia Kyung 
Published: April 2020

Abstract
Prior studies have shown that above-normal sea surface temperatures (SSTs) enhance snowfall over Korea. Here, we show that heavy snow is also associated with below-normal East Sea SSTs, and we investigate the dynamical response of the atmosphere to this surface condition using observations and numerical modeling. The results indicate that anomalous southeasterly/easterly winds are induced by heavy snowfall-related cold SST anomalies, and consequently, the moisture flux is converged. The existence of the southeasterly winds and the accompanied moisture flux convergence appear to be instrumental in producing the heavy snowfall events. The anomalous southeasterly/easterly winds associated with heavy snowfall-related cold SST anomalies reduce the climatological northwesterly/westerly winds, leading to relatively warm and wet conditions over the east coast of Korea that are favorable for forming and intensifying snowfall events in the region.
Compatibility of trap cropping system and insecticides in managing leafminers Liriomyza spp. (Diptera: Agromyzidae) on shallot crop
Authors: Saleh S , Anshary A , Yunus M , Hasriyanty  
Published: April 2020

AbstractTrap cropping system has been widely used as a management strategy against various types of pests. However, the efficacy of this strategy varies and need to be increased by combining it with another additional control strategy. This study aimed to evaluate the efficacy of trap cropping system and insecticides against leafminers, an important pest of crops in the world including in shallot crop in Indonesia. The study was arranged in a randomized complete block design with 6 treatments, which were 1) without any treatments (control), 2) trap crops, 3) botanical insecticide (Agonal), 4) synthetic insecticide (Abamectin) 5) trap crops and Agonal, 6) trap crops and abamectin. The results showed that the trap cropping system has a stronger effect on reducing infestation than the population of leafminers. Trap crops reduced leafminer infestation by around 50% when combined with insecticides but only reduced by 32 % without insecticides. Agonal and abamectin insecticides had similar efficacy against leafminers. Trap crop application combined with insecticides had the highest parasitoid population compared with insecticides and control. This study revealed that trap crops were compatible with insecticides in controlling shallot leafminers and supports the integrated pest management of leafminers.
Flavor ingredients in the rodenticide formulation to improve consumption rate and mortality of house rat (Rattus tanezumi L.)
Authors: Syahputri D A A , Priyambodo S 
Published: April 2020

Abstract
House rat (Rattus tanezumi L.) is an urban pest that are disturbing in the settlements habitat. It can cause destruction and as a reservoir of pathogen to human. Control efforts have been conducted, both non-chemical and chemical. A flavoring ingredient in the formulation of rodenticide is required for chemical control. The objective of this study was to investigate the preference of house rat to flavor ingredients i.e. egg, sugar, monosodium glutamate, cooking oil, and soy sauce. The benefit of this research is to provide information and knowledge on the preference of house rat to the flavor type combined with rodenticide. These ingredients could be attractive enough to combine with acute rodenticide (zinc phosphide) and chronic rodenticide (coumatetralyl) for application in the field. Research conducted at Vertebrate Pest Laboratory, Dept. of Plant Protection, IPB Univ. for 6 month. Preliminary trial conducted to test the different concentration of several flavoring ingredients. Then, it mixed with 2 rodenticides, acute and chronic. The preliminary trial indicated that 10% of egg was the most preferable bait. The daily consumption on acute rodenticide (1.29 g) was significantly different to positive control (0.24 g). On the other hand, the consumption on chronic rodenticide was very high (3.34 g) and significantly different to negative control (2.18 g) and positive control (0.21 g). Mortality rate of test animal on acute and chronic rodenticide was 80% and 90%, respectively.
Diversity of dung beetle (Coleoptera: Scarabaeidae) in oil palm agropasture ecosystem in West Kotawaringin Regency, Central Kalimantan, Indonesia
Authors: Sa’roni S M , Prabowo R , Sahari B , Buchori D 
Published: April 2020

Abstract
Cattle grazing on oil palm plantation (agropastoral) has the potential to increase biodiversity by providing new habitats and providing foods for invertebrates. Dung beetles use the cattle’s dung for food and to lay eggs. The aim of this research is to study the effect of cattle grazing on oil palm plantation toward the diversity, abundance and ecosystem services of dung beetles. The research was conducted in the oil palm plantation of PT. Astra Agro Lestari Tbk. Central Kalimantan Province. Samplings were done on 6 oil palm blocks (4 plots on each block) consisting of 3 blocks that have been grazed by cattle (agropastoral) and 3 blocks that were not grazed (non-agropastoral). Samplings were done using baited pitfall traps and dung removal test. The treatments were replicated 4 times (0, 4, 8 and 12 wk). In total 24 species belonging to 5 genera and 11 019 individuals dung beetle have been collected. The most diverse group were genera from Onthophagus (16 species; 66.7% of collected species) and follow by Aphodius (4 species; 16.6%), Catharsius (2 species; 8.3%), Panelus (1 species; 4.2%) and Oniticellus (1 species; 4.2%). The result showed that the diversity of dung beetle was the same in agropastoral and non-agropastoral, but the abundance was 4 times higher in agropastoral habitat. Dung removal in non-agropastoral was 16% higher than agropastoral. Overall the result showed that cattle grazing has increased dung beetle population, although it has no effect on the diversity and ecosystem service of dung beetle.
Biology and dynamics Hypsipyla robusta (Moore) (Lepidoptera: Pyralidae)
Authors: Nuraeni Y , Nuroniah H S 
Published: April 2020

Abstract

Hypsipyla shoot borer (Hypsipyla robusta (Moore)) (Lepidoptera: Pyralidae) is the main pest of mahogany plants. This pest attacks the apical shoots and inhibits the growth of mahogany. This study observed the biology, damage, and attack patterns of Hypsipyla shoot borer attack on mahogany plants. The study was conducted for 1 yr by periodically monitoring per 2 mo of 3 blocks of mahogany plantation in KHDTK Haurbentes, Jawa Barat. Data collected included 1) observation of symptoms, signs, presence of pests, effects of attacks, and 2) number of attacks. The symptom of the shoot borer was the presence of a hole filled with powder from the secretion of pests; the sign of an attack was the appearance of shoot borer larvae in the stem hole of the shoot area; while the effects of attacks were the death of the shoot and the emergence of multishoots. Observation showed that shoot borer attacks were not influenced by the weather, with the highest attack occurred in March 2017. Various levels of instars could be found at one time, indicating that insect growth in the field was not uniform. One cycle takes 5 to 8 wk. The highest rate of repeated attacks founded was 7 times/tree/yr, the average attack occurred 2-4 times/tree/yr.
The effect of pesticide residue on mortality and fecundity of Elaeidobius kamerunicus (Coleoptera: Curculionidae)
Authors: Setyawan Y P , Naim M , Advento A D , Caliman J P 
Published: April 2020

AbstractThe effect of pesticide residue (acaricide, insecticides, herbicides, and fungicides) commonly used in oil palm plantations was assessed to pollinating weevil,Elaeidobius kamerunicusunder laboratory condition. The study showed that all insecticides and acaricide in the spikelet were harmful to the weevil, causing mortality ranged from 37% to 100% application. Dimehypo, carbosulfan and deltamethrin cause 100% mortality at 10 hr after treatment (HAT) followed by fipronil, acephate, pyridaben, imidacloprid andBacillus thuringiensiscause 87%, 83%, 60%, 40% and 37% mortality at 10 HAT respectively. Our study also revealed that all herbicides recidu in the spikelet had a negative impact on the weevil. Metsulfuron-methyl caused the highest mortality (83%) of the weevils death, followed by triclopyr, ammonium glufosinate, glyphosate, and fluroxyphyr caused 63%, 43%, 33% and 30% at 10 HAT, respectively. Fungicides also had negative impact with lower extent. Exposing mancozeb was causing 27% mortality, significantly higher than benomyl (13%). Further analysis showed that acaricide and insecticides significantly reduce fecundity of the weevil except forB. thuringiensis,herbicides, and fungicides. The study suggests that choosing correct active ingredients would maintain sustainable number of weevil in oil palm plantation and would avoid the declining regeneration effect of pollinating weevil.
Electronic nose for early detection of basal stem rot caused by Ganoderma in oil palm
Authors: Kresnawaty I , Mulyatni A S , Eris D D , Prakoso H T , Tri-Panji  , Triyana K , Widiastuti H 
Published: April 2020

Abstract
The successful control of basal rot disease (BSR) determined by early detection of infection because when the symptoms already appear, generally plants are difficult to save. The earlier the Ganoderma infection is known, the easier the control will be and the losses can be minimized. Therefore, early detection of Ganoderma infection is very necessary, which in this study was carried out by detecting volatile compounds using electronic nose (E-nose). E-nose detection has been carried out to analyze the compounds formed in pure Ganoderma culture. Detection of plants in the field carried out at 4 levels of infection, i.e. healthy, early, moderate and severe infection. The results concluded that Ganoderma mycelium when compared with other fungi (Trichoderma, Aspergillus and Omphalina) showed significant differences when analyzed using an unsupervised PCA chemometric system. The E-nose data processed using machine learning Support Vector Machine (SVM) was able to distinguish the aroma between Ganoderma boninense CSB, G. boninense ‘Rejosari’, and G. lucidum with an accuracy rate of 99.64%. E nose was able to differentiate with high accuracy (90.95%) of each infection level even though there was still a slice between in root sample.
Incidence of basal stem rot disease of oil palm in converted planting areas and control treatments
Authors: Priwiratama H , Prasetyo A E , Susanto A 
Published: April 2020

Abstract
The incidence of BSR was observed over years in 4 historically-different planting areas i.e. land converted from rubber, cacao and swamp, and continuous oil palm replanting area. In addition, we observed the effect of surgery-mounding to the lifetime of Ganoderma-infected palms and the effectiveness of different replanting techniques on the incidence of BSR disease. The infection rate of Ganoderma was faster in oil palm replanting area at 7.68% per yr, followed by land conversion from swamp, cacao, and rubber at 4.67%, 3.81%, and 1.06% per yr, respectively. Surgery-mounding of Ganoderma-infected palms can prolong the lifetime of the infected palms with number of death palm up to 4.45%. Meanwhile, removal of Ganoderma inoculum sources during replanting contributes to lower BSR incidence in the first nine years. The lowest incidence of BSR was observed following the complete removal of oil palm debris in combination with big-hole planting system with less than 5% infected palms. On the other hand, the incidence of BSR on the individual use of big-hole planting system during replanting was at 6.29% at 9 yr after planting. The result suggests the importance of inoculum removal during replanting to prevent Ganoderma infection in the early phase of oil palm development.
Morphological and molecular characteristics of Hemicriconemoides cocophillus from the origin of Robusta coffee plantation in Malang, East Java
Authors: Budiman A , Supramana  , Giyanto  
Published: April 2020

Abstract

Hemicriconemoides cocophillus is one of the phytonematode associated with Robusta coffee plantation. Information regarding morphology, morphometry, and molecular characters of H. cocophillus has not been reported in Indonesia. This study is aimed to describe characters of H. cocophillus that was extracted from soil samples taken from Robusta coffee plantation in Malang, East Java. Nematode extraction was conducted using the flotation-centrifuge method. Morphology and morphometric characters were observed from the permanent nematode slides. Single nematode DNA extract was amplified at the D2D3 segment of 28S and ITS1-5.8S-ITS2 with universal primers. The amplicon was sequenced and analyzed for similarity and phylogenetic tree analysis. The female morphological key character of H. cocophillus are sheath looks clear and thin, stylet strong with anchor-shaped knobs, and tail tapering to a finely rounded tip. Female morphometrics key characters are n=5, L=446.5±22.5 μm, a=15.8±0.9, b=5.3±0.2, c=13.9±1.5, stylet length=51.6±2 µm, tail length=32.3±3.2 µm. Based on the D2D3 and ITS1-5.8S-ITS2 regions, H. cocophillus have similarity level of 99% and 98%, respectively with H. cocophillus from NCBI. Phylogenetic tree result using Maximum Likelihood at the D2D3 segment of 28S and ITS1-5.8S-ITS2 regions shows that H. cocophillus in this study was included in one clade with H. cocophillus from Mozambique.
Metagenomics analysis of soil microbial communities in plant agroforestry system rubber tree (Hevea brasiliensis) – Ganyong (Canna sp.)
Authors: Effendi Y , Aini N , Pambudi A , Sasaerila H Y 
Published: April 2020

Abstract
Rubber tree (Hevea brasiliensis) is one of important industrial plants in Indonesia. It is planted widely in some provinces in Indonesia, one of which is in West Java under management of the PTPN VIII plantation, Subang Regency. Intercropping system using underutilized crops Canna sp. (Ganyong) had been introduced on Rubber plantation. The aim of this research is to analyze the diversity, abundance and richness of rhizosphere soil microbial under rubber-canna agroforestry system using metagenomic analysis of 16S rRNA gene of soil rhizosphere bacteria. The research was carried out by collecting soil samples from 2 different soil conditions (soils with Canna (G) and soils without Canna (TG)). 2 different soil depths conditions (20 and 40 cm) were also investigated. The results showed that number of microbial in G soils was found more abundance than in TG soils, while based on soil depth there was no significant effect on soil microbial abundance. Based on class level was found 84 Classes. There were 3 classes that are mostly found in G and TG, namely Ktedonobacteria, Acidobacteria and Planctomycetia. Microbial diversity in family level mostly found in G and TG, Namely Koribacteraceae, Gemmataceae, Synobacteraceae, Hyphomicrobiaceae.
Utilization of rapid detection kit in measuring Huanglongbing outbreak level: case study in Koto Tinggi, West Sumatera, Indonesia
Authors: Puspitasari  , Yunimar  , Sastro Yudi 
Published: April 2020

Abstract
Huanglongbing (HLB) is a disease of citrus caused by bacterium Liberobacter asiaticus that can lead to plant death. Most farmers are unaware that their plants have been infected since the beginning of plant growth, and rather considers the condition as a result of nutrient deficiency. Detection of HLB usually is conducted in expensive and complicated laboratory test through PCR (polymerase chain reaction). Rapid detection is necessary in order to formulate a strategy to solve the HLB outbreak appropriately. HLB Rapid Detection Kit is an innovation that can identify the presence of HLB easily and inexpensive way, even farmers can do the test by themselves. An observation has done to apply the HLB Rapid Detection Kit in citrus plantation area of Koto Tinggi, Agam district, West Sumatera. The results revealed that the number of citrus plants that affected by HLB disease was 19.22% - 41.84%. HLB outbreak in citrus plantation suspected to be due to the use of citrus infected seedlings. The strategies for restoration citrus areas that have HLB outbreak are eradicating and replanting citrus plantation using certified disease-free citrus seedlings, those implementation should be integrated in citrus area.