bluuebunny/crossref_metadata_2025 huggingface dataset:
Fabrication of uniform arrays of silver nanoparticles on silicon by electrodeposition in ethanol solution and their use in SERS detection of difenoconazole pesticide
Authors: Dao Tran Cao , Luong Truc Quynh Ngan
Published: November 2020

An array of silver nanoparticles in a monolayer form with nanometer separation was electrodeposited onto silicon in an ethanol electrolyte and used as a SERS substrate in trace detection of difenoconazole pesticide.
A plant-mediated synthesis of nanostructured hydroxyapatite for biomedical applications: a review
Authors: Alorku Kingdom , Manoj M. , Yuan Aihua
Published: November 2020

Plant-mediated sythesis of nanostructured hydroxyapatite for multifunctional biomedical applications.
Chromium-free Cu@Mg/γ-Al2O3 – an active catalyst for selective hydrogenation of furfural to furfuryl alcohol
Authors: Arundhathi Racha , Reddy Panyala Linga , Samanta Chanchal , Newalkar Bharat L.
Published: November 2020

A catalyst for selective hydrogenation of furfural to furfural alcohol in a solvent free environment.
Identification of an extracellular vesicle-related gene signature in the prediction of pancreatic cancer clinical prognosis
Authors: Xu Dafeng , Wang Yu , Zhou Kailun , Wu Jincai , Zhang Zhensheng , Zhang Jiachao , Yu Zhiwei , Liu Luzheng , Liu Xiangmei , Li Bidan , Zheng Jinfang
Published: November 2020

Although extracellular vesicles (EVs) in body fluid have been considered to be ideal biomarkers for cancer diagnosis and prognosis, it is still difficult to distinguish EVs derived from tumor tissue and normal tissue. Therefore, the prognostic value of tumor-specific EVs was evaluated through related molecules in pancreatic tumor tissue. NA sequencing data of pancreatic adenocarcinoma (PAAD) were acquired from The Cancer Genome Atlas (TCGA) and International Cancer Genome Consortium (ICGC). EV-related genes in pancreatic cancer were obtained from exoRBase. Protein–protein interaction (PPI) network analysis was used to identify modules related to clinical stage. CIBERSORT was used to assess the abundance of immune and non-immune cells in the tumor microenvironment. A total of 12 PPI modules were identified, and the 3-PPI-MOD was identified based on the randomForest package. The genes of this model are involved in DNA damage and repair and cell membrane-related pathways. The independent external verification cohorts showed that the 3-PPI-MOD can significantly classify patient prognosis. Moreover, compared with the model constructed by pure gene expression, the 3-PPI-MOD showed better prognostic value. The expression of genes in the 3-PPI-MOD had a significant positive correlation with immune cells. Genes related to the hypoxia pathway were significantly enriched in the high-risk tumors predicted by the 3-PPI-MOD. External databases were used to verify the gene expression in the 3-PPI-MOD. The 3-PPI-MOD had satisfactory predictive performance and could be used as a prognostic predictive biomarker for pancreatic cancer.
Data mining of immune-related prognostic genes in metastatic melanoma microenvironment
Authors: Han Wei , Huang Biao , Zhao Xiao-Yu , Shen Guo-Liang
Published: November 2020

Skin cutaneous melanoma (SKCM) is one of the most deadly malignancies. Although immunotherapies showed the potential to improve the prognosis for metastatic melanoma patients, only a small group of patients can benefit from it. Therefore, it is urgent to investigate the tumor microenvironment in melanoma as well as to identify efficient biomarkers in the diagnosis and treatments of SKCM patients. A comprehensive analysis was performed based on metastatic melanoma samples from the Cancer Genome Atlas (TCGA) database and ESTIMATE algorithm, including gene expression, immune and stromal scores, prognostic immune-related genes, infiltrating immune cells analysis and immune subtype identification. Then, the differentially expressed genes (DEGs) were obtained based on the immune and stromal scores, and a list of prognostic immune-related genes was identified. Functional analysis and the protein–protein interaction network revealed that these genes enriched in multiple immune-related biological processes. Furthermore, prognostic genes were verified in the Gene Expression Omnibus (GEO) databases and used to predict immune infiltrating cells component. Our study revealed seven immune subtypes with different risk values and identified T cells as the most abundant cells in the immune microenvironment and closely associated with prognostic outcomes. In conclusion, the present study thoroughly analyzed the tumor microenvironment and identified prognostic immune-related biomarkers for metastatic melanoma.
Feasible Implementation Strategies for Improving Vocabulary Knowledge of High-Risk Preschoolers: Results From a Cluster-Randomized Trial
Authors: Kelley Elizabeth Spencer , Barker R. Michael , Peters-Sanders Lindsey , Madsen Keri , Seven Yagmur , Soto Xigrid , Olsen Wendy , Hull Katharine , Goldstein Howard
Published: November 2020

Purpose

Many children begin school with limited vocabularies, placing them at a high risk of academic difficulties. The goal of this study was to examine the effects of a vocabulary intervention program,Story Friends, designed to improve vocabulary knowledge of at-risk preschool children.

Method

Twenty-four early-childhood classrooms were enrolled in a cluster-randomized design to evaluate the effects of a revisedStory Friendscurriculum. In each classroom, three to four preschoolers were identified as having poor language abilities, for a total of 84 participants. In treatment classrooms, explicit vocabulary instruction was embedded in prerecorded storybooks and opportunities for review and practice of target vocabulary were integrated into classroom and home practice activities. In comparison classrooms, prerecorded storybooks included target vocabulary, but without explicit instruction, and classroom and home strategies focused on general language enrichment strategies without specifying vocabulary targets to teach. Intervention activities took place over 13 weeks, and 36 challenging, academically relevant vocabulary words were targeted.

Results

Children in the treatment classrooms learned significantly more words than children in the comparison classrooms, who learned few target words based on exposure. Large effect sizes (meand= 1.83) were evident as the treatment group averaged 42% vocabulary knowledge versus 11% in the comparison group, despite a gradual decline in vocabulary learning by the treatment group over the school year.

Conclusions

Findings indicate that a carefully designed vocabulary intervention can produce substantial gains in children's vocabulary knowledge. TheStory Friendsprogram is feasible for delivery in early childhood classrooms and effective in teaching challenging vocabulary to high-risk preschoolers.

Supplemental Material

https://doi.org/10.23641/asha.13158185
FI‐GAN: fewer iterations GAN for rapid synthesis controllable realistic images
Authors: Yu He , Yu Nannan
Published: November 2020

Conditional generative adversarial networks (GANs) have led to considerable improvements in the task of conditional image generation. However, there are still some problems, including the low definition of generated images, mode collapse, gradient disappearance and slow convergence, which need to be solved. In this study, the authors proposed a novel conditional GAN model, fewer iterations GAN (FI‐GAN), that requires fewer iterations to generate controllable and realistic images. First, to improve the performance of feature extraction of the discriminator and data distribution fitting of the generator, two residual blocks are added into the discriminator and generator. Then, two new loss functions, including quality and category loss functions for both the discriminator and generator, are designed to enhance the details and distinguishability of the generated images. Finally, to avoid mode collapse and improve the convergence, the Wasserstein distance is used as the quality loss function. With the CIFAR‐10 and large scene understanding datasets, FI‐GAN can generate delicate and diverse colour samples with fewer iterations. It achieved better performance evaluated by three objective criteria, the inception score, Fréchet inception distance and kernel maximum mean discrepancy, compared with four methods of conditional GAN.
Comment on ‘SFVCC: Chaotic map‐based security framework for vehicular cloud computing’
Authors: Irshad Azeem , Ashraf Chaudhry Shehzad
Published: November 2020

This comment is presented to identify the drawbacks in a recently published scheme SFVCC by Mishra et al. doi:10.1049/iet‐its.2019.0250. In this scheme, a malicious adversary may initiate a replay attack and denial of service attack after eavesdropping the communication. These attacks render the scheme inapplicable for practical deployment.
Modeling proton and electron heating in the fast solar wind
Authors: Adhikari L. , Zank G. P. , Zhao L.-L. , Nakanotani M. , Tasnim S.
Published: November 2020

Context. The Parker Solar Probe (PSP) measures solar wind protons and electrons near the Sun. To study the thermodynamic properties of electrons and protons, we include electron effects, such as distributed turbulent heating between protons and electrons, Coulomb collisions between protons and electrons, and heat conduction of electrons.

Aims. We develop a general theoretical model of nearly incompressible magnetohydrodynamic (NI MHD) turbulence coupled with a solar wind model that includes electron pressure and heat flux.

Methods. It is important to note that 60% of the turbulence energy is assigned to proton heating and 40% to electron heating. We use an empirical expression for the electron heat flux. We derived a nonlinear dissipation term for the residual energy that includes both the Alfvén effect and the turbulent small-scale dynamo effect. Similarly, we obtained the NI/slab time-scale in an NI MHD phenomenology to use in the derivation of the nonlinear term that incorporates the Alfvén effect.

Results. A detailed comparison between the theoretical model solutions and the fast solar wind measured by PSP and Helios 2 shows that they are consistent. The results show that the nearly incompressible NI/slab turbulence component describes observations of the fast solar wind periods when the solar wind flow is aligned or antialigned with the magnetic field.
Enhanced proton parallel temperature inside patches of switchbacks in the inner heliosphere
Authors: Woodham L. D. , Horbury T. S. , Matteini L. , Woolley T. , Laker R. , Bale S. D. , Nicolaou G. , Stawarz J. E. , Stansby D. , Hietala H. , Larson D. E. , Livi R. , Verniero J. L. , McManus M. , Kasper J. C. , Korreck K. E. , Raouafi N. , Moncuquet M. , Pulupa M. P.
Published: November 2020

Context.Switchbacks are discrete angular deflections in the solar wind magnetic field that have been observed throughout the heliosphere. Recent observations by Parker Solar Probe (PSP) have revealed the presence of patches of switchbacks on the scale of hours to days, separated by ‘quieter’ radial fields.

Aims.We aim to further diagnose the origin of these patches using measurements of proton temperature anisotropy that can illuminate possible links to formation processes in the solar corona.

Methods.We fitted 3D bi-Maxwellian functions to the core of proton velocity distributions measured by the SPAN-Ai instrument onboard PSP to obtain the proton parallel,Tp,∥, and perpendicular,Tp,⊥, temperature.

Results.We show that the presence of patches is highlighted by a transverse deflection in the flow and magnetic field away from the radial direction. These deflections are correlated with enhancements inTp,∥, whileTp,⊥remains relatively constant. Patches sometimes exhibit small proton and electron density enhancements.

Conclusions.We interpret that patches are not simply a group of switchbacks, but rather switchbacks are embedded within a larger-scale structure identified by enhancedTp,∥that is distinct from the surrounding solar wind. We suggest that these observations are consistent with formation by reconnection-associated mechanisms in the corona.
Trends in domestic energy use reduction and private renewable energy production
Authors: van Schijndel Patrick
Published: November 2020

Domestic energy use can be directly influenced by personal choices. These choices include the selection of equipment (efficiency), mode of equipment use, consumer behaviour but also by self-production of electricity, space heating and/or cooling. Intelligent meters showing the actual use of electricity give insight in domestic energy use and is crucial in decreasing domestic energy use. However, households need better access to knowledge and experiences of experts to understand the potential choices to decrease their use of energy. Housing and equipment ‘labelling’ can give some support with these choices, but need to be more uniform and clear. Households controlling their own usage of energy and home production of electricity can make substantial savings on their energy bills. The paper describes experiences in practical situations using long term scientific and professional experiences.
Determinants of latrine utilization in Munggur Village, Mojogedang District, Karanganyar Regency, Central Java
Authors: Nurjazuli Nurjazuli , Joko Tri , Bela Saputri Anggi
Published: November 2020

The use of latrines by the community will affect the incidence of ducts, such as diarrhea. The Karanganyar Regency Government has built communal latrines to reduce open defecation, however is not yet optimal and there are still many open defecation communities (BABS). This study aims to examine the determinants of latrine utilization by the community. Observational research has been carried out with Cross-Sectional design. A total of 83 family heads from 578 populations were taken by proportional random sampling as research subjects. The variables examined in this study include knowledge, attitudes, latrine ownership, availability of clean water, support from community leaders and health workers, and latrine utilization. Data collection is done by interview and direct observation of research objects, with questionnaire instruments and observation sheets. Research data were analyzed by Chi-Square Test. As many as 18.1% of the people do not use latrines to defecate. Statistical analysis showed that there was a relationship between attitudes, latrine ownership, availability of clean water, and support from community leaders with the practice of using latrines in daily bowel movements with p-values of < 0.05, respectively. This research concludes that the attitude of the community, latrine ownership, availability of clean water, and community support greatly influenced the practice of using latrines for defecation.
Environmental Consideration For Physical Housing Improvement In Bukit Kencana Jaya Semarang
Authors: Esariti Landung , Putri M.D
Published: November 2020

So far, economic factors dominate the reasons for doing physical renovation activities of the houses. This means that the more stable the condition of the household economy, the physical improvement activities will be more likely to be conducted. This study investigates how the physical changes of the house are carried out at each stage of the family life cycle in Bukit Kencana Jaya Semarang. The four stages in family life cycle are single families, families without children, families with children and elderly families. Furthermore, this study also analyse what are the environmental considerations that influence the physical changes made. The method used is survey research, with the distribution of questionnaires to 60 respondents in 5 different types of houses. This research confirms that house physical change activities are household sustainability strategies to improve quality of life and achieve well-being. Proximity to environment facilities and location attachment to neighbourhood became the main environmental considerations findings. This research output supports the objective of Sustainable Development Goals number 3 about health and well- being, and Sustainable Development Goals number 11 on sustainable communities.
Analysis of The Impact of Industrial Activities Towards River Vacancy Viewed from BODS, CODS, and TSS Using The QUAL2KW Software Method Approach (Case Study: Klampok River, Semarang District)
Authors: Hardyanti Nurandani , D Nugraha Winardi , Edgar S B Vito
Published: November 2020

The industrial sector is one of the important sector in supporting the development of a region. Utilization of land around the river that is used for industrial activities will affect the quality of river water. The river can be polluted by waste personinating from industries that operating around the river. The catchment area that used for industry, agriculture, urban development, and the use of land for making roads (gravel or footpaths) can affect the flow of surface water and sediments that it brings to the river. Waste generated from industrial activities can pollute rivers which are a source of water for daily needs and affect the development of biota in them. This can affect river water quality
Assesment Work Fatigue To Workers In Environment Underground Mining Areas Based On Fatigue Assesment Scale Questionnaires
Authors: Rachmawati Siti , Aktsari Miftaqul , Suryaningsih Anis , Hawali Abdul Matin Hashfi , Suryadi Iwan
Published: November 2020

Fatigue is recognized as a high potential risk for accidents and therefore an assessment of work fatigue is required. The purpose of this study is to describe the overall work fatigue assessment and based on work fatigue factors using questionnaires for the fatigue rating scale for workers in underground mining areas. This study used a descriptive method to describe the overall assessment of work fatigue and assessment of work fatigue based on factors related to fatigue using questionnaire scale fatigue assessment of workers in underground mining areas at PT. Y. Overall fatigue assessment based on fatigue evaluation questionnaire results obtained 54.55% of workers who experience fatigue. Fatigue assessment based on factors related to work fatigue shows that workers who tend to experience fatigue are> 45 years of age, <7 hours of sleep,> 5 years of work, 12 hours of work, supervisor type II / jumbo operator drill, jumbo drill operator, LHD operator, and service crew / helper jumbo drill, work climate> NAB (> 29.00 C) and noise> NAB (> 85 dB A). Underground mining workers tend to experience fatigue. The older the worker's age, the less sleep time, the longer the work period, the longer work time, the heavier the type of work, the hotter the working climate and the noisier it tends to experience fatigue.
Flood risk spatial index analysis in the coastal Pekalongan, Central Java, Indonesia
Authors: Mustika Anindita Ratna , Susilowati Indah , Muhammad Fuad
Published: November 2020

The North coast of Java is increasingly exposed to flood risks due to land subsidence and climate change, resulting in sea-level rise. This paper developed a flood risk spatial index model in the coastal Pekalongan. The model was systematically arranged from various flood risk indicators related to the social, economic, and environment of coastal Pekalongan based on surveys and interviews with the communities and regional governments. These indicators are then integrated into hazard and vulnerability as components of risk. Using the index system method and ArcGIS, the risk index is classified into five levels (very high, high, medium, low, very low) and generated into a flood risk spatial distribution map. We found that the risk in the study area varies between a medium to a very high level of risk. The very high level of risk was located in Tratebang, Pecakaran, and Tegaldowo Village. A risk spatial distribution map can be used to evaluate potential risks and flood mitigation.
Study of The Use of Biogas Into Electrical Energy by The Farmer Group Dulur Ganjar, Langse Village, Margorejo District, Pati Regency, Central Java
Authors: Puspito Aji Kurniawan , Nur Bambang Azis
Published: November 2020

Processing of agricultural and livestock waste produces biogas which is then used by the community to substitute natural gas energy and substitute electricity for clean water supply and produce organic fertilizer for farming purposes. This research was conducted using descriptive methods, by describing how to treat agricultural and livestock waste. Then a quantitative approach is used which aims to describe or explain the conversion of biogas energy into electrical energy. Biogas has good prospects as an alternative energy substitute for non-renewable energy in Indonesia which is experiencing an energy crisis which is characterized by increasingly scarce and high fuel prices which have an impact on the higher costs of generating electricity. In the Ganjar Farmers-Farm Group, the use of biogas by using goat / sheep dung is very potential, from 300 goats / sheep has the potential to produce electrical energy of 32.4 kWh / day. Most of the power plants that supply the Pati Regency region still use energy sources made from non-renewable energy materials. The depletion of fuel for these non-renewable plants, power plants with renewable fuels are absolutely necessary.
The Implementation of Land Consolidation Policy for Housing Development
Authors: Yuliastuti Nany , Haryanto Ragil
Published: November 2020

Housing and settlements have long been one of the problems faced in urban areas. The high rate of population growth and the rate of urbanization has led to high demand for housing and settlements. However, in many cases in urban areas, the available land is minimal, causing the emergence of pockets of slums. One method that can be done to solve the problem of slums is to carry out land consolidation. Therefore, this study aims to determine the criteria that influence the implementation of land consolidation. This research is a descriptive study with a literature analysis method. The results obtained are factors that influence the implementation of land consolidation are location and community factors.
The Mapping of Land Use Using Object-Based Image Analysis (OBIA) in Klaten Regency
Authors: Bashit Nurhadi , Sari Ristianti Novia , Eko Windarto Yudi , Ulfiana Desyta
Published: November 2020

Klaten Regency is one of the regencies in Central Java Province that has an increasing population every year. This can cause an increase in built-up land for human activities. The built-up land needs to be monitored so that the construction is in accordance with the regional development plan so that it does not cause problems such as the occurrence of critical land. Therefore, it is necessary to monitor land use regularly. One method for monitoring land use is the remote sensing method. The remote sensing method is much more efficient in mapping land use because without having to survey the field. The remote sensing method utilizes satellite imagery data that can be processed for land use classification. This study uses the sentinel 2 satellite image data with the Object-Based Image Analysis (OBIA) algorithm to obtain land use classification. Sentinel 2 satellite imagery is a medium resolution image category with a spatial resolution of 10 meters. The land use classification can be used to see the distribution of built-up land in Klaten Regency without having to conduct a field survey. The results of the study obtained a segmentation scale parameter value of 60 and a merge scale parameter value of 85. The classification results obtained by 5 types of land use with OBIA. Agricultural land use dominates with an area of 50% of the total area.
Maritime-Agricultural Communities: Leadership and Independence System of Javanese Village Communities in the Past
Authors: Widodo Sutejo K.
Published: November 2020

This study discusses the leadership and the independence system of Javanese villages in the Past. In maritime village communities - agrarian, there are people who are trusted to lead, with the dynamics of independence. The village naturally regulates its own community based on village bound. The village burden is related to the demands of interests originating from the colonial supra village, forcing the village to be burdened with the interests of supplying goods for the needs of the world market by intensifying feudal housing. This topic is relevant to the village funding program, empowerment of rural communities with substantial funds, but in the implementation, it is still half-hearted because there is no complete belief that the village has actually been proven capable of taking care of itself and meeting its own needs. To discuss this problem, the historical method is used by reviewing important books specifically discussing villages. The results of the study provide evidence that maritime agrarian villages in Java already have leadership independence that practices in managing and meeting among the villagers. Thus, it is undoubted about the ability to channeling the village funds.
The Representation of Human and Nature Relations in the Spell of “Poan Dorong Dopeq”
Authors: Khasanah Nurul , Nurhayati
Published: November 2020

Kedang communities in East Nusa Tenggara Province living in the foothills of Uyelewun Mountain have a close relation with nature to fulfil the needs of food, homes, and economy. Because nature provides everything for them, they are appreciate and protect the natural environment as well as possible. They always ask permission from Uhe ria ari baraq and Nature to bless them when carrying out the ritual of Poan dorong dopeq or the tradition of migration. This study aims to discuss how is the representation of human relations with nature in the spell of poan dorong Dopeq. In this case, an ethnograpic perspective is used to uncover both aspects. The spell data listed is secondary data obtained from Pos Kupang of November 24th 2019 edition. In addition, researcher also conducted interviews with native speaker and socially prominent of Kedang. The results show that the relations between humans and nature in Poan dorong Dopeq spell is clearly illustrated. Several spells mention the parable through staple food, geographical location, and natural situation of the community. Based on ethnograpic Perspective, this spell is a compulsory component in the ritual of poan dorong dopeq and must be spoken by a Molan to request blessing and prayer to the surrounding nature.
The harmonious relationship between human beings and nature in traditional song lyric during sintren ritual
Authors: Masthuroh Siti Ayu , Prihantoro
Published: November 2020

This study aims to describe how communication patterns and symbolic meaning in the procession of Cirebon sintren ritual. The data that researchers use are limited to traditional songs accompanying sintren procession so that the research discussion can be explained in a focused and directed manner. This research is a descriptive qualitative research using the ethnographic theory of communication. Research data analyzed using domain analysis techniques based on unit theory analysis presented by Dell Hymes about the setting (communication situation), event (communication event), and act (communication act). The results showed that the choice of the floral lexicon ginger, galangal, and zingiber in traditional song lyric during sintren ritual reflects the characteristics of Cirebon society who live in areas with geographical conditions of lowlands and highlands. These three floral lexicons are everyday plants that they encounter; meaning language use in a society cannot be separated from its natural environment. Meanwhile the symbolic meaning in the fragment of the song and the gesture of the sintren procession reflect the state of society during the colonial period.
Rejection of the Medical Personnel Funeral of Covid 19 Victim in Sewakul sub-Village, Semarang District: A Critical Discourse Analysis
Authors: Muzakka M , Suyanto  , Farihul Amin Mujid
Published: November 2020

This study aims to: (1) describe and explain the knowledge and beliefs of the target study communities of Covid 19 and the corpse of victims of Covid 19 and (2) explains the sociocultural factors that influence the attitudes and behavior of the community regarding Covid 19 and the rejection of the funeral of Covid 19 victims. This study uses the Fairclough model of critical discourse analysis approach with a focus on social practices of the Sewakul community, Semarang District, represented in various mass media and social media. The formal object of this study is the discourse on social media detiknews.com, republika.co.id, and solopost.com and its formal object is the rejection of the funeral of a corpse of Covid 19 victims by the Sewakul community. Data collection uses the method of listening and note taking and in-depth interviews. Data analysis through three stages, namely data reduction, data display, conclusion / verification. The results of the study show that the people of Sewakul generally have undue (low) knowledge of the Covid 19 pandemic and its victims and loss of humanity. The sociocultural factors among the Sewakul people prioritize paternalistic, shyness, and blind social solidarity.
Java and Outer Island: Economic Inequality and Inter-Island Shipping Policy in Indonesia Until the 1960s
Authors: Rinardi Haryono
Published: November 2020

This article tries to explain the relationship between economic inequality in Java and outer Java, also the inter-island shipping policy in Indonesia until the 1960s by using the historical methods. This study proves that the inequality had occurred since the colonial era when the Dutch colonial government focused on developing infrastructure on Java as the center of its government. When withdrawn again, inequality has occurred since pre-colonial times. The inter-island shipping policy that places Java as the center of shipping has increasingly encouraged economic inequality.
Online Game and the Hikikomori Phenomenon in Japan
Authors: Rosliana Lina , Widiandari Arsi
Published: November 2020

The internet, online games, smartphones are things that are very familiar with the lives of millennials today, including the millennial generation in Japan. Everything that comes with it is a necessity, including the negative effects it causes. In Japan, the society has highlighted many problems arising from the internet, online games, and smartphones, one of which is the addiction problem in using these devices. This brings us to the classic problem of Japanese society, namely, hikikomori, where a person stays at home for long periods, does not socialize and work, and only does what he/she likes. This research will further explore the relationship between online games and the hikikomori phenomenon that developed in Japan.
Technical Analysis on Household-Scale Rooftop Solar Power Plant Design with On-Grid System in Semarang City
Authors: Windarta Jaka , Saptadi Singgih , Denis  , Satrio Dimas Adi , Silaen Johanes Soritua
Published: November 2020

Indonesia has 442 GW total of potential renewable energy equivalence which can be used for electricity generation. However, the energy utilization in 2018 is only 8.8 GW or 0.019% of total potential renewable energy, while the biggest renewable energy potential is at 207.8 GWp. By also considering the growing number of household customers, utilizing the rooftop as the base of solar power plant generators can be an effective and efficient solution. The purposes of this research are to technically design and analyze the household-scale rooftop solar power plant potential with an on-grid system. Through the utilization of PVSyst 6.43 software and a variety of main components, this household-scale rooftop solar power plant potential performance planning is expected to generate 4.23 kWh / kWp per day.
Development of bioenergy plantation in Indonesia: yield regulation and above-ground carbon storage in Gliricidia (Gliricidia sepium) plantation
Authors: Mulyana Budi , Soeprijadi Djoko , Hadi Purwanto Ris
Published: November 2020

The development of gliricidia plantation (Gliricidia sepium) in Indonesia can be considered as a climate change mitigation action to reduce greenhouse gases emission. This paper investigates the yield regulation and potential above-ground carbon storage of gliricidia at Perhutani Forest Management Unit Semarang. The biomass production of gliricidia at various age (1, 2, 3, 4, 5 years) can be utilized to determine the biological cycle and estimating the potential above-ground carbon storage. The result showed that gliricidia could be harvested after 2-years to produce optimum biomass. Above-ground carbon storage in gliricidia plantation distributed in the tree (94.73%), litter (2.98%), and understorey plants (2.29%). Total above-ground carbon storage in gliricidia plantation at age 1-5 years are 6.285,45 Mg C, 8.052,58 Mg C, 9.161,93 Mg C, 14.238,63 Mg C, and 25.474,79 Mg C, respectively.
Design simulation and economic optimization of a benzene-toluene-xylene system distillation process upon the energy cost
Authors: Silviana S. , Dalanta Febio , Qurrota A’yuni Dewi , Khoiriyah Lu’luatul , Rousan Nabila Putri , Alfaris M. Fahrizal
Published: November 2020

Distillation is the most extensively used in separation process of the chemical industry. Relationships between non-linear variables, multivariable interactions, dynamic system properties, and other irregularities render the study of design simulation and process optimization an interesting challenge for process engineers. The objective of the process optimization is to produce the most economical to conduct the system. This paper discusses the process engineering strategy started from the determination method of the degree of freedom, design variables, process tools, economic parameters, and the optimization process. The distillation variable optimized in this study was limited to reflux ratio. The optimum variable was construed from the reflux ratio producing the lowest total annual cost (TAC). Furthermore, it was analyzed the energy cost as optimization parameter in the total annual cost (TAC) calculation method to obtain minimum reflux ratio in distillation unit.
Spatial Analysis of Childhood Tuberculosis and Social Determinants in Bandar Lampung
Authors: Wulan Sumekar Rengganis Wardani Dyah , Prasetyo Wahono Endro
Published: November 2020

Childhood tuberculosis is an overlooked aspect of the current tuberculosis epidemics; even the incidence is increasing and may influence children's growth and development. Several researches have studied social determinants as TB risk factors, but only a few researches have studied spatial analysis of childhood tuberculosis and social determinants. This research aimed to study spatial analysis of childhood TB and social determinants in Bandar Lampung, Indonesia. This research was cross sectional study which involved five community health centers that have childhood TB cases. Population of this research was all childhood tuberculosis cases in the study site. Sample of this research was 73 cases. Variables of this research were samples’ residence geographical coordinates and social determinants (population density and proportion of poor family) of the related sub districts. Data was collected through CHSs’ and sub districts’ secondary data which then analyzed using overlay spatial analysis. The results showed that childhood TB tend to group in middle to high population density and middle proportion of poor families areas. Therefore, regarding in reducing childhood TB incidence, TB control programs should elaborate social determinants actions in areas with low social determinants.
ARFIMA Model for Short Term Forecasting of New Death Cases COVID-19
Authors: Kartikasari Puspita , Yasin Hasbi , Asih I Maruddani Di
Published: November 2020

COVID-19 is an infectious disease that can spread from one person to another and has a high potential for death. The infection of COVID-19 is spreading massive and fast that causes the extreme fluctuating data spread and long memory effects. One of the ways in which the death of COVID-19 can be reduce is to produce a prediction model that could be used as a reference in taking countermeasures. There are various prediction models, from regression to Autoregressive Fractional Integrated Moving Average (ARIMA), but it still shows shortcomings when disturbances occur from extreme fluctuations and the existence of long memory effects in the form of analysis of a series of data becomes biased, and the power of statistical tests generated for identification become weak. Therefore, the prediction model with the Autoregressive Fractional Integrated Moving Average (ARFIMA) approach was used in this study to accommodate these weaknesses because of their flexible nature and high accuracy. The results of this study prove that ARFIMA (1,0,431.0) with an RMSE of 2,853 is the best model to predict data on the addition of new cases of patients dying from COVID-19.
Analysis of queue change of visitors and performace system in the Department of Population and Civil Regristation of Semarang City
Authors: Sugito  , Prahutama Alan , Ispriyanti Dwi , Mustafid
Published: November 2020

The Population and Civil Registry Office in Semarang city is one of the public service units. In the public service sector, visitor / customer satisfaction is very important. It can be identified by the length of the queue, the longer visitors queue this results in visitor dissatisfaction with the service. Queue analysis is one of the methods in statistics to determine the distribution of queuing systems that occur within a system. In this study, a queuing analysis as divided into two periods. The first period lasts from 2-13 March 2015, while the second period lasts November 16th to December 20th 2019. The variables used are the number of visitors and the service time at each counter in intervals of 30 minutes. The results obtained are changes in the distribution and queuing model that is at counter 5/6 and counter 10. The queuing model obtained at the second perideo for the number of visitors and the time of service with a General distribution. The average number of visitors who come in 30 minute intervals in the second period is more than the first period, this indicates an increase in visitors. The opportunity for service units is still small, the waiting time in the queue is getting smaller. This shows that the performance of the queuing system at the Semarang Population and Civil Registry Office is getting better.
PIECES Framework and Importance Performance Analysis Method to Evaluate the Implementation of Information Systems
Authors: Fatoni Ahmad , Adi Kusworo , Widodo Aris Puji
Published: November 2020

Work plan and budget are solutions in gathering budget planning data and uniforming budgeting. the purpose of the work plan and budget is to assist all work units in preparing and managing the budget plan without mixing it with other units. The importance of performances analysis method and PIECES framework were chosen in this study because both of method were able to classify the insitution problems, opportunities and information system goals. PIECES Framework as a questionnaire criteria to responding the users and the Importance Performance Analysis method as a result of questionnaire data from 88 respondents in the form of Quadrants. The aim of the research to evaluate information systems is a user satisfaction and importance of information systems. The calculation results with IPA method shows that the user's satisfaction averages and the importance of information system quality is 93.71%. However, there are a few deficiencies that need to be improved in the development of information systems, work plans and annual budgets such as system quality, accurate informations, estimated cost of building the system, security systems efficiency and service improvement for users.
Coastline Changes On The Coast of Cirebon Using Landsat
Authors: Khadijah  , Saraswati Ratna , Wibowo Adi
Published: November 2020

The coastal region is a very dynamic region because it undergoes two processes, natural and non-natural. The coastline can change due to waves, tides and human activities. Human activities are mostly carried out in coastal areas including reclamation for ports. Coastal area of Cirebon is one of the areas that experiences land addition or port reclamation which causes changes in the coastline. Images interpretation is one way to find out changes that occur in coastal areas by using Landsat 8 OLI and Landsat 5TM imagery. The image extraction method using RGB 432 can see the differences between the sea-land and how the changes has occurred in the last ten years, by overlaying both of them which results in extensive abrasion and accretion that occurs on the coast of Cirebon. The abrasion area is 107.12 Ha and the accretion is 941.17 Ha.
Should e-Payment Trust be e-Commerce Implemented as a Consumer Satisfaction Factor?
Authors: Sutia Sabar , Fahlevi Mochammad , Saparudin Mohamad , Irma Dasih , Maemunah Sari
Published: November 2020

Consumer trust related to payment is an essential topic in several studies of online shopping. Consumers are very concerned about security in transactions including when making cashless payments. This study uses a non-parametric test using a SmartPLS with a sample of 243 respondents. The results of this study provide information that E-payment trust is an important factor for consumer satisfaction in E-commerce in Indonesia. Trust related to payments is closely linked to information security and data privacy security of consumers when making transactions on E-commerce.
Sentiment Analysis on Tokopedia Product Online Reviews Using Random Forest Method
Authors: Stephenie  , Warsito Budi , Prahutama Alan
Published: November 2020

Tokopedia is one of the most popular e-commerce sites in Indonesia that offers consumer products from various categories. In each product section, a review feature is offered. This review feature became essential in evaluating the sellers and become one consideration for customers in making purchase consideration. Sentiment analysis of Tokopedia product reviews may provide the opportunity to look on how Tokopedia customers respond to product quality and sellers’ hospitality. In evaluating the model, the reviews were grouped as: “positive sentiment” and “negative sentiment” using the Random Forest method and 10-fold cross-validation. Data labelling was carried out automatically by calculating the sentiment score using Lexicon-Based. Visualization of the labelling results was then done using a bar graph and a word cloud on each class of sentiment in order to look up for information that is considered important and most discussed. The test results showed that the accuracy of the Random Forest Method with parameter mtry = 73 and ntree = 50 is 97.38% which leads to the conclusion that the Random Forest Method could well predict the product reviews of Tokopedia. The greater the accuracy, the better performance of the classification model.
Neuropathia vestibularis – Prävalenz der stationären Fälle in Deutschland
Authors: von Bernstorff Maximilian , Pudszuhn Annett , Obermueller Theresa , Hofmann Veit Maria
Published: November 2020

Einleitung Die Neuropathia vestibularis (NV) ist eine häufig diagnostizierte, akute peripher-vestibuläre Schwindelform. Sie ist gekennzeichnet durch Drehschwindel, ipsilaterale Fallneigung mit Stand- und Gangunsicherheit und vegetative Begleiterscheinungen. Epidemiologische Studien zur Abschätzung der Häufigkeit der NV in der Gesamtbevölkerung sind selten und werden regional sehr unterschiedlich angegeben.

Material und Methoden Es erfolgte die Auswertung aller stationären Fälle mit der Diagnose einer NV in Deutschland von 2000–2017. Die Daten wurden vom Statistischen Bundesamt bereitgestellt. Neben der jährlichen Fallzahl wurden zusätzlich Informationen über Alter bei Diagnose, Geschlecht und Liegedauer untersucht.

Ergebnisse Insgesamt wurden in Deutschland 401 242 stationäre Fälle mit NV zwischen 2000 und 2017 gemeldet. Daraus ergibt sich für das Jahr 2017 eine Prävalenz von 36,7 Fällen/100 000 Einwohner. Die Anzahl der stationären Fälle mit NV ist in Deutschland in den untersuchten 17 Jahren um ca. 180 % gestiegen. Frauen wurden häufiger als Männer mit einer NV stationär behandelt. Die Liegedauer nahm im Beobachtungszeitraum kontinuierlich um insgesamt 3,3 Tage ab.

Diskussion Die beobachtete Prävalenz der stationären NV-Fälle von 36,7 Fällen/100 000 Einwohner im Jahr 2017 und die in der Literatur beschriebene ambulante Prävalenz der NV-Fälle von 162 Fällen/100 000 Einwohner im Jahr 2015 in Deutschland ist auch bei Berücksichtigung einer Bias bei der Erfassung der Fälle deutlich höher als bisher in der Literatur beschrieben. Die kontinuierliche jährliche Zunahme der stationären Fälle mit einer NV in Deutschland ist möglicherweise mit demografischen Veränderungen der Altersstruktur und der damit verbundenen höheren Morbidität assoziiert.
Effectiveness and Safety of Apixaban, Low-Molecular-Weight Heparin, and Warfarin among Venous Thromboembolism Patients with Active Cancer: A U.S. Claims Data Analysis
Authors: Cohen Alexander , Keshishian Allison , Lee Theodore , Wygant Gail , Rosenblatt Lisa , Hlavacek Patrick , Mardekian Jack , Wiederkehr Daniel , Sah Janvi , Luo Xuemei
Published: November 2020

Background This study primarily evaluates the risk of recurrent venous thromboembolism (VTE) and major bleeding (MB) among patients with VTE and active cancer prescribed apixaban, low-molecular-weight heparin (LMWH), or warfarin, with claims data.

Methods Four U.S. commercial insurance claims databases were used to identify patients with VTE and active cancer who initiated apixaban, LMWH, or warfarin within 30 days following the first VTE event. Stabilized inverse-probability treatment weighting (IPTW) was used to balance treatment cohorts. Cox proportional hazard models were used to evaluate risk of recurrent VTE and MB.

Results All eligibility criteria were fulfilled by 3,393 apixaban, 6,108 LMWH, and 4,585 warfarin patients. After IPTW, all patient characteristics were balanced. When the follow-up was censored at 6 months, apixaban patients had a lower risk of recurrent VTE (hazard ratio [HR]: 0.61; 95% confidence interval [CI]: 0.47–0.81) and MB (HR: 0.63; 95% CI: 0.47–0.86) versus LMWH. Apixaban patients had a lower risk of recurrent VTE (HR: 0.68; 95% CI: 0.52–0.90) and similar risk of MB (HR: 0.73; 95% CI: 0.53–1.00) versus warfarin. Warfarin patients had a similar risk of recurrent VTE (HR: 0.91; 95% CI: 0.72–1.15) and MB (HR: 0.87; 95% CI: 0.68–1.12) versus LMWH. The trends were similar for the entire follow-up; however, apixaban patients had a lower risk of MB versus warfarin patients.

Conclusion Patients with VTE and active cancer who initiated apixaban had a lower risk of recurrent VTE and MB compared with LMWH patients. Apixaban patients also had a lower risk of recurrent VTE compared with warfarin patients.
Path integral Liouville dynamics simulations of vibrational spectra
of formaldehyde and hydrogen peroxide
Authors: Zhang Zhi-jun , Chen Zi-fei , Liu Jian
Published: November 2020

Formaldehyde and hydrogen peroxide are two important realistic molecules in atmospheric chemistry. We implement path integral Liouville dynamics (PILD) to calculate the dipole-derivative autocorrelation function for obtaining the infrared spectrum. In comparison to exact vibrational frequencies, PILD faithfully captures most nuclear quantum effects in vibrational dynamics as temperature changes and as the isotopic substitution occurs.