bluuebunny/crossref_metadata_2025 huggingface dataset:
Non-stoichiometric amorphous magnesium-iron silicates in circumstellar dust shells
Authors: Gail Hans-Peter , Tamanai Akemi , Pucci Annemarie , Dohmen Ralf
Published: November 2020

Aims.We study the growth of dust in oxygen-rich stellar outflows in order to find out to which extent dust growth models can quantitatively reconcile with the quantities and nature of dust as derived from observations of the infrared emission from circumstellar dust shells.

Methods.We use a set of nine well-observed massive supergiants with optically thin dust shells as testbeds because of the relatively simple properties of the outflows from massive supergiants, contrary to the case of AGB stars. Models of the infrared emission from their circumstellar dust shells are compared to their observed infrared spectra to derive the essential parameters that rule dust formation in the extended envelope of these stars. The results are compared with a model for silicate dust condensation.

Results.For all objects, the infrared emission in the studied wavelength range, between 6 and 25μm, can be reproduced rather well by a mixture of non-stoichiometric iron-bearing silicates, alumina, and metallic iron dust particles. For three objects (μCep, RW Cyg, and RS Per), the observed spectra can be sufficiently well reproduced by a stationary and (essentially) spherically symmetric outflow in the instantaneous condensation approximation. For these objects, the temperature at the onset of massive silicate dust growth is of the order of 920 K and the corresponding outflow velocity of the order of the sound velocity. This condensation temperature is only somewhat below the vapourisation temperature of the silicate dust and suggests that the silicate dust grows on the corundum dust grains that formed well inside of the silicate dust shell at a much higher temperature. The low expansion velocity at the inner edge of the silicate dust shell further suggests that, for these supergiants, the region inside the silicate dust shell has an only subsonic average expansion velocity, though a high degree of supersonic turbulence is indicated by the widths of spectral lines.

Conclusions.Our results suggest that for the two major problems of dust formation in stellar outflows, that is (i) formation of seed nuclei and (ii) their growth to macroscopic dust grains, we are gradually coming close to a quantitative understanding of the second item.
AMICO galaxy clusters in KiDS-DR3: Evolution of the luminosity function betweenz= 0.1 andz= 0.8
Authors: Puddu E. , Radovich M. , Sereno M. , Bardelli S. , Maturi M. , Moscardini L. , Bellagamba F. , Giocoli C. , Marulli F. , Roncarelli M.
Published: November 2020

Aims.By means of ther-band luminosity function (LF) of galaxies in a sample of about 4000 clusters detected by the cluster finder AMICO in the KiDS-DR3 area of about 400 deg2, we studied the evolution with richness and redshift of the passive evolving (red), star-forming (blue), and total galaxy populations. This analysis was performed for clusters in the redshift range [0.1, 0.8] and in the mass range [1013 M⊙, 1015 M⊙].

Methods.To compute LFs, we binned the luminosity distribution in magnitude and statistically subtracted the background. Then, we divided the cluster sample in bins of both redshift and richness/mass. We stacked LF counts in each 2D bin for the total, red, and blue galaxy populations; finally, we fitted the stacked LF with a Schechter function and studied the trend of its parameters with redshift and richness/mass.

Results.We found a passive evolution withzfor the bright part of the LF for the red and total populations and no significant trends for the faint galaxies. The mass/richness dependence is clear for the density parameter Φ⋆, increasing with richness, and for the total population faint end, which is shallower in the rich clusters.
Coastal Area Management Strategy Through Strengthening Community Capacity in Sumber Jaya Kampung Melayu District Bengkulu City
Authors: Darmi Titi , Ledyawati  , Eka Patrisia Novliza , Miftakhul Mujtahid Iqbal
Published: November 2020

In general, the socioeconomic life of the coastal communities of Kampung Melayu is still in a circle of poor life, identical to the lives of the fishing communities living in the coastal areas. This is influenced by the low capacity of human resources, social economy, culture, environment, and government policies. This research aims to 1) describe the conditions and problems faced by fishing communities living in coastal areas: 2) know the strategy for building the capacity of people living in the coastal areas of Kampung Melayu, through field observations methods, interviews, FGD`s, and related literature. The results of this study are often the condition of people living in a better location within the coastal areas of Kampung Melayu. This involves the government, which provided infrastructure in the form of environmental roads, sanitation, and parks. However, there is a need to increase the capacity of human resources, alternative innovations for people's livelihoods, technology development, easy access to capital, provision of infrastructure, and market governance. In line with this, the government needs to collaborate with universities, private media sector, and local communities, for a greater success.
Development of Ecotourism-Based Strategy: A Case Study of Tinjomoyo Tourism Forest
Authors: Susanto Novie , Nurkertamanda Denny , Prastawa Heru , R Nugraha Aditya
Published: November 2020

Tinjomoyo Tourism Forest Area is an object or tourist destination with the concept of ecotourism-based nature conservation in the city of Semarang, Central Java Province. The number of visitors, based on the tourist destination in the last three years (2015-2017) shows that the number of tourists visiting the Tinjomoyo Tourism Forest Area are 5,949 tourists in 2015, to 13,755 tourists in 2017. The area is inversely proportional to tourism in Semarang, including the park, Wildlife, Lele Park and Kreo Goa. To improve the visitor attention, it needs a development of potential strategy Ecotourism-based tourism objects using strengths, weaknesses, opportunities, threats (SWOT) analysis and Quantitative Strategic Planning Matrix (QSPM) analysis. This study recommends development strategies that are analysed through data processing from internal and external factors and alternative strategies that become priority strategies that can be implemented. The results of the study found 23 indicators of strength indicators and 12 weakness indicators. While for external factors there are 12 indicators that appear with details of 6 opportunity indicators and 6 threat indicators. From the indicators found, a data processing is performed using the QSPM method that produces priority strategies.
Sustainability Development Environment: Improving Social Economy in Kalikondang Village, Demak Regency
Authors: Sunarti S , Yuliastuti Nany , Arastya Dewi Lala , Bellia Putri Sari
Published: November 2020

Success in upgrading slums over time will tend to return to slums. This is due to unrelated economic, social, and environmental aspects. The newly upgraded Kalikondang Village tends to experience this problem because the economic sector does not support sustainability. Based on these problems, the purpose of this study is to find a sustainable model for settlement development and maintenance in Kalikondang Village, Demak Regency. The research method uses a mixed-method with a concurrent embedded model. Quantitative and qualitative descriptive analysis techniques by combining two existing forms of data with the literature. The results showed that the model of a sustainable development environment in the village of Kalikondang was to increase the economic sector first with new business dwellers, supported by increased institutional capacity at the community level as business managers. Both sectors will result in an increased income of citizens, so they can be managed by institutions in the community for sustainable development and environmental preservation. The research contribution is a model of the form of economic, social, and environmental sector relations which is the development of the theory of sustainable housing.
Flood Inundation Mapping of Cempaka Tropical Cyclone Effect in Gunung Sewu Karst Landscape Using Sentinel 1
Authors: Pambudi Ridwan Arif , Riadini Fitri , Naldi Ari , Putri Nadya Paramitha
Published: November 2020

Cempaka Tropical Cyclone (TC) occurred on November 27, 2017, at the Indian Ocean and induced high rainfall leading to flooding in the southern part of Java island. One of the most affected areas is the karst landscape of Gunung Sewu. This study aims to identify flood inundated areas caused by the Cempaka TC in the Gunung Sewu karst landscape through satellite imagery of Sentinel 1B. Sentinel 1B imageries were used to extract the flood inundation area through the processing of random forest (RF) and the thresholding value (TV). A significant difference in flood inundated area was obtained between RF and TV, where RF shows a result of 526.07 ha of the total inundated area while the TV shows a result of 105.46 ha. However, both methods show the same sequence for three regencies with the highest total flood inundated area (Gunungkidul, Pacitan, and Wonogiri) and show the same range of each flood inundated area (0-0.5 ha). This distribution of flood inundated area can be used by policymakers as a basis for spatial planning in Gunung Sewu karst landscape.
Removal of Ammonia Nitrogen by Activated Sludge Process Using Simultaneous Nitrification Denitrification Method
Authors: Junaidi  , Sumiyati Sri , Sitinjak Ronauli
Published: November 2020

Nitrogen concentrations are often found in ammonia, nitrite, nitrate, and neutral nitrogen waters. This research has investigated the simultaneous removal of biological nitrogen nitrification and denitrification (SND) in a continuous flow system of activated sludge processes. This research was conducted by variations in carbon sources is namely glucose and methanol. Variations of C / N ratios of 5, 10, and 20 were also carried out. The main parameters were analyzed every day until the end of the research period. The main parameter analyzed is ammonia-nitrogen. Besides, additional parameters were also analyzed in the form of COD, nitrate-nitrogen, nitrite-nitrogen, pH, MLSS, SVI, and DO. The results of research indicate artificially excess nitrogen wastewater can be treated using SND and can produce sufficiently good effluent quality if the operations are running optimally. The highest ammonia-nitrogen removal efficiency of 100% shown by the variation of the carbon methanol source and value of the C / N 20 ratio then followed by the C / N 10 ratio of 78% and the C / N 5 ratio of 59%. Overall, the data shown appropriate controls for carbon and nitrogen inputs are needed to achieve an efficient SND. Proper SND technology can save operating time and energy, and may replace two traditional stages: biological nitrification and denitrification processes.
Literature review: The contribution of mangrove ecosystem condition to mosquito population
Authors: Siwiendrayanti Arum , Anggoro Sutrisno , Nurjazuli Nurjazuli
Published: November 2020

Previous studies indicated that coastal areas are vulnerable for mosquito-borne diseases. Socio-economic limitations and tidal flooding result in sanitation problems for coastal settlements. Mangrove ecosystems grow on tropical and subtropical coastal areas which can be mosquito breeding and resting places. This study aimed to explore the evidence of the contribution of mangrove ecosystem conditions to mosquito population through a literature review. Articles collection was done by using Scopus, SpringerLink and EBSCO databases. The inclusion criteria in selecting articles to be reviewed are publications in 2010-2020 and containing the words "mangrove" and "mosquito" in the tittle. The exclusion criteria were article in press status, review form (non-original research), retracted status, and the unrelated topics. It was obtained 6 articles that met the inclusion and exclusion criteria. Evidence of the association between the dynamics of the mangrove ecosystem and mosquito density is inconsistent. Following future study is needed to confirm and clarify the results of this review, using methodologies and confounding controls that are appropriate both epidemiologically, spatially, and experimentally.
Mercury (Hg) concentration of river water and sediment in Tambang Sawah village due to gold mining without permission
Authors: Mulyadi Irwan , Zaman Badrus , Sumiyati Sri
Published: November 2020

The rise of mining activities without permission (PETI) which was a people’s mining from Dutch colonial legacy, located in the Tambang Sawah Village, Pinang Belapis District, Lebong Regency has caused environmental problems especially mercury pollution in that village river water. The sampling method refer to Japan Public Health Association (JPHA), then sample analyzed in the national standard laboratory and the results were compared with the Government Regulation of Republic Indonesia No. 82 of 2001 on Management of Water Quality and Control Over Water Pollution. Concentration of total mercury in river water at five sampling points from upstream to downstream of the Tambang Sawah Village river, respectively <0,0003 ppm, 0,0004 ppm, 0,0007 ppm, 0,0008 ppm and 0,0011 ppm and total concentration of mercury in river sediments respectively 1.34 ppm, 4.18 ppm, 35.89 ppm, 50.32 ppm and 114.37 ppm, has exceeded the threshold limit.
Escalate groundwater potential for acquiring sustainability and resilience in Pekalongan City, Indonesia – a review
Authors: Cahaya Hati Asri , Triadi Putranto Thomas , Hadiyanto  , Arief Budihardjo Mochamad
Published: November 2020

Groundwater in Pekalongan City suffered vulnerability. Water catchment quality in there is already at a critical threshold. The anthropogenic and natural factors which have fluctuating rainfall stressed groundwater. There are 4580 companies, 33 accommodation services, and 318 restaurants that exert clean water for their performance. The population of Pekalongan city in 2019 has reached 307,097 people, which has increased by almost 25% of the inhabitants in 1993. The local Health Department reported that there was an increase in the morbidity rate of 27.62% compared to 2018. The increase in flooding and land subsidence had triggered a diminish in land value and engender other economic losses. This study executed with a comprehensive literature review of (1)groundwater characteristics, (2)techniques for enhancing groundwater potential, and (3)alternatives of groundwater preservation that proper it. The assessment approach leads to accelerated groundwater infiltration through cutting material with low permeability by crossing less conductive aquifer layers through the installation infrastructure with large diameters. The unit provides the ability to carry out lateral infiltration and increase water storage in the soil to support sustainability and resilience.
Vegetation resilience to absorbing carbon dioxide emissions in the Gajahmada Street
Authors: Widanirmala Miftachurahma , Maryono Maryono , Muhammad Fuad
Published: November 2020

Gajahmada Street is one of the main streets in the city of Semarang. The location is very strategic, which connects the Golden Triangle Region in Semarang City which is the center of the city. As a city center, transportation activities in the area are very high. Transportation activities produce carbon dioxide emissions. The accumulation of carbon dioxide emissions is dangerous for health and the environment. Semarang City Government provides green open space along the road section to reduce carbon dioxide emissions. The purpose of this study was to determine the vegetation resilience to absorbing carbon dioxide at that location. The data collection method uses literature collection and field observations. The results showed the ability of green open space to absorb carbon dioxide emissions is 1.218,7 tons/ha/year. While the emissions produced are 6.832 tons/year, meaning that there is residual carbon dioxide that is not absorbed, that is 5.613,3 tons/year.
The Paradox of Juluk Adek Adat Pepadun Megou Pak Tulangbawang Ritual Related to Restructuring Social Environtment
Authors: Wahyuni Tri , Nurhayati Nurhayati
Published: November 2020

This article discusses the paradox in the juluk adek 'giving customary/ adat title' ceremony of the adat Pepadun Megou Pak Tulangbawang, Lampung. This descriptive qualitative research in the scope of ethnography of communication uses primary data in the form of communication patterns in the juluk adek ceremony conducted by bi kelamou 'wife of groom’s uncle', which seen by punyimbang ‘the leader of adat’, peghwatin 'adat’s actor', and the bride-groom's family. The author uses the distance elicitation method with virtual interview techniques, records, and notes. There were 13 lexicons in the form of verbal spoken by kelamou which have the meaning changing adjusted to the current social conditions of society. In addition, there were also 7 lexicons that should not be used and carried out in the procession of the juluk adek ceremony because they were considered to be sengok 'bad consequences'. If these things were violated, the consequence was that the bride-groom’s family must pay the dau 'adat fines' decided in the pepung 'adat meeting' in the sesat agung 'traditional hall' of Lampung Pepadun Megou Pak Tulangbawang, Lampung. Although many rituals must be undertaken, in the current social and pandemic conditions the procession is still carried out with some adjustments.
The Language Variety and the Meaning of Javanese Culture in the Event of Tantingan and Tebus Kembar Mayang in the Night of Midodareni
Authors: Magfiroh Hanif , Subiyanto Agus
Published: November 2020

Javanese tribe has special acts in doing their sacred ceremony or ritual. One of their sacred ceremony is called midodareni belongs to the event of tantingan and tebus kembar mayang. The purpose of this study is to analyse the varied language used and its meaning related to the way of Javanese people through those two events. Therefore, this study is examined by using the theory of etnography communication. This study uses secondary data collected from Youtube. The result of the study shows that there are language variations in communicating to the interlocutor who has different role since Javanese people adhere to the communication pattern of unda usuk. The meaning of sub-event of tantingan is appropriate with Javanese culture of doing every single thing carefully so there is a speech act aimed at reconfirming. Then, in the sub-event of tantingan also describes the characteristic of Javanese tribe who love their daughters. The meaning of that sub-event of tebus kembar mayang is correlated to Javanese culture of hoping an everlasting marriage which is symbolized with kembar mayang, and every form kembar mayang not be separated from the nature, so it shows that Javanese people have a synergy with nature.
The influence of waters environment on the existence of Martapura port in Banjarmasin, South Kalimantan
Authors: Susilowati Endang
Published: November 2020

This article examines the influence of waters environment on the existence of Martapura port in Banjarmasin, South Kalimantan. Martapura port is a port located on the banks of Martapura River, Banjarmasin. This port has been an essential trade center since the 17th century during the heyday of Banjar sultanate. The strategic port location along the riverbank that divides Banjarmasin makes Martapura port crowded and visited by sailors and traders from various islands and other regions in Indonesia, even from other countries. Through historical research methods consisting of heuristics, source criticism, interpretation, and historiography, this article reveals how the waters environment influenced the existence of Martapura port until finally the port had to be moved to a new location. The results emphasize that the narrowing Martapura river due to the development of economic centers and residential settlements in the form of floating houses on both sides of the river and also sedimentation in the estuary, caused disruption of the shipping lanes to the port and the silting of the turning basins. As a result, the waterway became narrow and large ships were no longer able to move into the port. Therefore, in 1961, the construction of a new port on the banks of Barito river began and since 1965 Martapura port has only been used for the activities of small wooden ships and sailboats.
Tracing the Notion of Rural Environmental Development Concept by M. Saleh Lahade, South Sulawesi in 1950s
Authors: Malihu La , Rochwulaningsih Yety , Puguh Dhanang Respati
Published: November 2020

This paper aims to trace M. Saleh Lahade's notion on the concept of rural development in South Sulawesi in the 1950s. Used historical method which includes several phases, namely: heuristics, criticism, interpretation and historiography. The result reveals the fact that M. Saleh Lahade's ideas were based on the physical environment and severe human settlement were damaged, the stagnation of the economy and the occurrence of stagnation in social life as a result of prolonged armed conflict. The concepts offered are based on falsafah and local wisdom that has long been developed, such as the spirit to act when finding something that is broken, the spirit of never giving up, the spirit of honesty, the spirit of independence (to maradeka), and the spirit of building harmony in people's lives. To develop his ideas M. Saleh Lahade used the concept of cluster units. Through this approach, rural service units are built in one mini cluster to create effectiveness and efficiency in public services. In addition, it also encourages the creation of a better physical and social environment, a more secure public health, and faster economic wheels.
Entrepreneurship Empowerment of UMKM Diversity Growth in Cultural Environment Semarang
Authors: Indrahti Sri , Andita Meirina Fildza
Published: November 2020

This paper seeks to research and portray how business behavior of UMKM with diversity type of entrepreneurial in cultural environment in Semarang. Entrepreneurial was given of empowerment from Government by means of the training with the purpose to create independence entrepreneurship with emphasize potential entrepreneurship. Entrepreneurs open the opportunity of economic and employment to alleviate property. It’s not just economy, entrepreneurship UMKM had a principles that are applied, such as hard-work, be patient, priority to quality of product, and teach how to sharing with others. That principles brings cultural behavior in entrepreneurship spirit. Data collection methods in this paper consists of primary data by interviews with entrepreneurship of UMKM, and secondary data, by books, publication journal, government policy, and digital newspaper. This research wants to portray the benefits that entrepreneurship of UMKM is not only centered on economic, but for cultural environment to be principles from entrepreneurship of UMKM.
Solid State Anaerobic Digestion for Biogas Production from Rice Husk
Authors: Hawali Abdul Matin Hashfi , Syafrudin Syafrudin , Suherman Suherman
Published: November 2020

Increased rice production in Indonesia not only brings good news socially and economically, but also brings bad news for environmental ecology. In each rice crop produces 50% rice straw and 50% grain. The grain is divided into two again, namely 80% rice and 20% rice husk. In 2018, counted the rice husk up to 10,379,625 tons, a fantastic number if cannot be managed properly so that it can pollute the environment. One alternative to deal with the high rice husk is through conversion to biogas. Biogas is an energy that is formed under anaerobic conditions with organic material so that it is also called renewable energy. The development of research on biogas production from rice husks based SS-AD has experienced a positive increase in hardness. Studies have been conducted on the pre-treatment to other influencing factors. But after the authors describe the latest development of biogas research from rice husk, there are still some variables that have not been tested such as physical treatment, the influence of temperature, pH and alkalinity. Based on this review, further research is needed to complete a number of variables that have not been carried out so that it is expected that the development of biogas production from rice husk based SS-AD can move toward larger scales such as pilot scale and industrial scale.
Cost Estimates Related to COVID-19 Treatment in Indonesia: What Should be Concerned?
Authors: Patria Jati Sutopo , Budiyono  , Tiyas Budiyanti Rani , Suhartono  , Ginandjar Praba , Sriatmi Ayun , Nandini Nurhasmadiar
Published: November 2020

Coronavirus Disease-2019 (COVID-19) is a pandemic disease in all over the world caused by SARS-COV-2 virus. This disease also spread all over Indonesia. The cost of treating People Under Surveillance and Patient under Monitoring, also confirmed patient of COVID-19 will be financed by the Indonesian Government. This research aimed to identify the estimated cost for treating the Covid-19 patients in Indonesia. The calculation method used top up costs and INA CBGs based on the number of hospitalized positive patients. The data source was COVID-19 data in Central Java and national data. Case growth calculated by doubling time positive cases of COVID-19 in Central Java were 1.7 (range 1.73 – 2.73). Range of days was between 6-8 days. The amount of top up cost for one day treatment refers to Health Ministry of Indonesia Decree Number HK.01.07/MENKES/238/2020 and cost estimation of INACBGs with the severity level II and III. This calculation did not include donations, outpatients and other costs. The result of this study, estimation if patients were treated in ICU for 8 days and non ICU for 7 days, and the rest of inpatients according to INACBs, so the cost of COVID-19 treatment for 14 – 28 days estimated at 75.7-77.3 million rupiah/patient. Whereas if the patient treated in ICU for 14 days and non ICU for 14 days, the rest of inpatient according to INACBs, the cost for COVID-19 treatment estimated at 130.4- 133.2 million rupiah/patient. The COVID-19 treatment is quite expensive and can be a burden for the Government of Indonesia’s budget. In addition, the limited access and health facilities also become an obstacle. Strengthening promotive and preventive efforts are needed to prevent the surge of COVID-19 case. Policies which support strict social and physical distancing are needed so that the interventions become more effective.
Using FHE in a binary ring Encryption and Decryption with BLE Nano kit microcontroller
Authors: Temirbekova Erlanovna Zhanerke , Pyrkova Anna
Published: November 2020

An integrated circuit (IC) that can be programmed to perform a series of functions to control a range of electronic devices is a microcontroller. What makes the microcontroller special is that it is programmable. In this article, we're going to try to rely on the mbed platform, the most common open source microcontroller development platform; we use completely homomorphic encryption in a binary number ring to ensure the data protection feature. Let us compare the time it takes to perform encryption and decryption on a Visual Studio C ++ and a Bluetooth Low Energy (BLE) Nano kit microcontroller. Experimental results show that the device can complete a fully homomorphic encryption in a binary number ring in 64.2 microseconds, which is reasonable in a real application scenario and illustrates the feasibility of implementing a more complex cryptographic system using a microcontroller.
Monitoring of Noise Contour Mapping and Hearing Conservation Program of Rice Milling Workers in Griyan Karanganyar
Authors: Rinawati Seviana , Rachmawati Siti , Suryadi Iwan , Setyono Prabang , Hawali Abdul Matin Hashfi , Kusumaningrum Lia , Suhardono Sapta
Published: November 2020

The use of production machines for a rice mill creates noise in the workplace, in addition to causing hearing loss and also disrupting work performance. So that the potential danger of noise at work must be controlled. The purpose of this study was to determine the noise mapping and implementation of a hearing conservation program in the Griyan Karanganyar rice mill. The research methods used in this paper is descriptive method describing research data in the form of noise map using the surfer 13 application and assessment of hearing conservation programs through the employee assessment form. The results of data collection in the thresher machine area = 110.15 dBA, in the skin crushing machine area = 109.39 dBA, in the bleaching machine area = 107.97 dBA, in the sifting area = 85.56 dBA and in the drying area = 80.53 dBA. All above Threshold Limited Value (TLV) except in the drying area. Overall stated that the Hearing Conservation Program (HCP) was declared unsuccessful from the worker's assessment of 40% agreeing and 60% disagreeing.
Empirical estimation of uncertainties of Charpy impact testing transition temperatures for an RPV steel
Authors: Marini Bernard
Published: November 2020

The aim of the present work is to derive empirically a simple expression of the uncertainties on Charpy transition temperatures (TT), which depends only on the test temperatures and the number of tests at each of these temperatures. Calculations of the TT uncertainties of a RPV steel are performed based on an empirical representation of Charpy test results and a Monte Carlo procedure to generate large numbers of data sets for different test matrices. Applying usual procedures to determine the TT to the generated data sets gives access to the distributions of these quantities from which the uncertainties are calculated.An analytical expression for these uncertainties is proposed.
Usage des traducteurs en ligne et enjeux affectifs de l'apprentissage de l'anglais en lycée
Authors: Bourdais Aurélie
Published: November 2020

Les émotions jouent un rôle non négligeable dans le processus d’apprentissage [1]. Le présent article a pour but d'explorer dans quelle mesure les usages des traducteurs en ligne par les lycéens sont liés aux enjeux affectifs relatifs à l’apprentissage de l’anglais en milieu institutionnel. Il s’appuie sur une étude dont l’objectif était d’observer le rôle des traducteurs en ligne dans le cadre d’activités de production écrite proposées à des lycéens en cours d’anglais. Des captures d’écran vidéo réalisées en salle multimédia ont donné à voir le processus de rédaction et plus particulièrement les recherches effectuées par les élèves. Les entretiens individuels effectués à la suite de cette séance de production écrite ont permis à 5 participants de visualiser la capture d’écran réalisée sur ordinateur et de la commenter. La méthodologie adoptée a permis une mise à distance des émotions ressenties lors de l’activité en vue d’en faciliter la verbalisation, mais le contexte interactionnel de l’entretien a également provoqué l’émergence de nouvelles émotions.
Versorgungsprobleme von Patienten mit chronischer Hepatitis C während der COVID-19-Pandemie und der Lockdown-Verordnungen
Authors: Hüppe Dietrich , Niederau Claus , Serfert Yvonne , Hartmann Heinz , Wedemeyer Heiner ,   für das DHC-R
Published: November 2020

Einleitung Die COVID-19-Pandemie und die damit verbundenen Lockdown-Verordnungen stellen das Gesundheitswesen und die Patientenversorgung vor Herausforderungen. Um den Einfluss der COVID-19-Pandemie und der mit ihr verbundenen Einschränkungen auf die Versorgung von Patienten mit chronischer Hepatitis C zu erfassen, haben wir unter den am Deutschen Hepatitis C-Register (DHC-R) mitwirkenden Zentren eine Umfrage durchgeführt.

Methodik Alle 320 für die Dokumentation im DHC-R freigeschalteten Zentren wurden zu einer internetbasierten Umfrage eingeladen. Davon hatten 74 Zentren im Verlauf der letzten 12 Monate mindestens 5 neue Patienten dokumentiert und zumindest die Screeningvisite abgeschlossen.

Ergebnisse 64 Zentren haben an der Befragung teilgenommen. Aufgrund des Lockdowns zwischen März und Mai 2020 hatten 11 % der Zentren ihre Lebersprechstunde vorübergehend eingestellt, 58 % teilweise eingeschränkt und 32 % unverändert fortgesetzt. Mehr als die Hälfte der Terminabsagen ging von den Patienten aus. 52 % der Zentren haben neue oder zusätzliche Telefonsprechstunden und 17 % neue Videosprechstunden eingerichtet. Zwischen März und Mai 2020 wurden deutlich weniger neue Patienten antiviral behandelt als im gleichen Zeitraum 2019. Ab Juli 2020 kehrten alle Zentren zum üblichen Sprechstundenangebot zurück. Fast 80 % der befragten Zentren gaben keine wesentliche Einschränkung der Patientenversorgung an. Immerhin stellten aber 22 % der Zentren fest, dass eine Leberdekompensation erst später erkannt, und 9,4 % gaben an, dass ein hepatozelluläres Karzinom verzögert diagnostiziert wurde. Ausreichend Schutzausrüstung war bei 56 % der Zentren vorhanden. Mit den behördlichen Informationen waren 63 % der Zentren zufrieden.

Zusammenfassung Diagnostik, Therapie und Überwachung von chronischen Lebererkrankungen waren durch die COVID-19-Pandemie beeinträchtigt. Nach Einschätzung der Mehrheit der Zentren kam es jedoch mittel- und langfristig zu keiner Unterversorgung. Sorge bereitete hingegen, dass gerade die akut lebensbedrohlichen Komplikationen wie die Leberdekompensation in erheblichem Maß verspätet erkannt wurden.
DNA origami nanorulers and emerging reference structures
Authors: Scheckenbach Michael , Bauer Julian , Zähringer Jonas , Selbach Florian , Tinnefeld Philip
Published: November 2020

The DNA origami technique itself is considered a milestone of DNA nanotechnology and DNA origami nanorulers represent the first widespread application of this technique. DNA origami nanorulers are used to demonstrate the capabilities of techniques and are valuable training samples. They have meanwhile been developed for a multitude of microscopy methods including optical microscopy, atomic force microscopy, and electron microscopy, and their unique properties are further exploited to develop point-light sources, brightness references, nanophotonic test structures, and alignment tools for correlative microscopy. In this perspective, we provide an overview of the basics of DNA origami nanorulers and their increasing applications in fields of optical and especially super-resolution fluorescence microscopy. In addition, emerging applications of reference structures based on DNA origami are discussed together with recent developments.
The impact of project financing in optimizing microgrid design
Authors: Pecenak Zachary K. , Mathiesen Patrick , Fahy Kelsey , Cannon Charles , Ayandele Ebun , Kirk T. J. , Stadler Michael
Published: November 2020

A disconnect between real world financing and technical modeling remains one of the largest barriers to widespread adoption of microgrid technologies. Simultaneously, the optimal design of a microgrid is influenced by financial as well as technical considerations. This paper articulates the interplay between financial and technical assumptions for the optimal design of microgrids and introduces a design approach in which two financing structures drive an efficient design process. This approach is demonstrated on a descriptive test case, using well accepted financial indicators to convey project success. The major outcome of this paper is to provide a framework which can be adopted by the industry to relieve one of the largest hurdles to widespread adoption, while introducing multiple debt financing models to the literature on microgrid design and optimization. An equally important outcome from the test case, we provide several points of intuition on the impact of varying financing terms on the optimal solution.
Anomalous Hall effect and negative longitudinal magnetoresistance in half-Heusler topological semimetal candidates TbPtBi and HoPtBi
Authors: Pavlosiuk O. , Fałat P. , Kaczorowski D. , Wiśniewski P.
Published: November 2020

Half-Heusler compounds have attracted significant attention because of their topologically non-trivial electronic structure, which leads to unusual electron transport properties. We thoroughly investigated the magnetotransport properties of high-quality single crystals of two half-Heusler phases, TbPtBi and HoPtBi, in pursuit of the characteristic features of topologically non-trivial electronic states. Both studied compounds are characterized by the giant values of transverse magnetoresistance with no sign of saturation in a magnetic field up to 14 T. HoPtBi demonstrates the Shubnikov–de Haas effect with two principal frequencies, indicating a complex Fermi surface; the extracted values of carrier effective masses are rather small, 0.18 me and 0.27 me. The investigated compounds exhibit negative longitudinal magnetoresistance and anomalous Hall effect, which likely arise from a nonzero Berry curvature. Both compounds show strongly anisotropic magnetoresistance that in HoPtBi exhibits a butterfly-like behavior.
Identification of a brainstem locus that inhibits tumor necrosis factor
Authors: Kressel Adam M. , Tsaava Tea , Levine Yaakov A. , Chang Eric H. , Addorisio Meghan E. , Chang Qing , Burbach Barry J. , Carnevale Daniela , Lembo Giuseppe , Zador Anthony M. , Andersson Ulf , Pavlov Valentin A. , Chavan Sangeeta S. , Tracey Kevin J.
Published: November 2020

Significance

Electronic devices that stimulate electrical activity in the vagus nerve are being studied for clinical use in rheumatoid arthritis, inflammatory bowel disease, and other inflammatory syndromes because vagus nerve signals inhibit inflammation and cytokine production. A vagus nerve mechanism, termed the inflammatory reflex, has been widely studied, but the origin and functional neuroanatomy of vagus nerve fibers controlling inflammation were previously unknown. Here we reveal cholinergic neurons in the brainstem dorsal motor nucleus (DMN) of the vagus projecting to the celiac-superior mesenteric ganglia and transmitting cytokine-inhibiting signals to the splenic nerve. By combining optogenetics, anatomical and functional mapping, and measurement of TNF production, our data show the DMN is an important brainstem locus controlling anti-inflammatory signals in the inflammatory reflex.
A (not so) paradoxical instance of compensatory lengthening: Samothraki Greek and theoretical implications
Authors: Topintzi Nina
Published: November 2020

Samothraki Greek onset-/r/ deletion with subsequent compensatory lengthening (CL) of the following vowel poses two major problems for current phonological theory. First, such a pattern should be impossible because in moraic theory onsets never bear weight, thus — under the assumption that CL is all about mora conservation (cf. Hayes 1989 and several others) — their deletion should not induce lengthening. Second, CL is an instance of opacity, and opacity is the single biggest conundrum that Optimality Theory faces. This paper addresses both issues and suggests that CL should not be treated as mora conservation, but instead as position preservation through the presence of a mora. This move sidesteps the previous problems as no reference to the input moraicity of segments is required and consequently, onsets, like codas, can cause CL. Moreover, concerns about OT’s parallelism, single input-output mapping, and Richness of the Base are taken into account ensuring that the resulting analysis observes all of them. The proposed solution neatly accounts for a number of CL cases and is successfully implemented in Samothraki Greek, an elaborate analysis of which is offered to capture the full range of facts.
Two-dimensional plasmon induced grating in a double V-type quantum system
Authors: Javanmard Mehdi
Published: November 2020

We theoretically study a two-dimensional electromagnetically induced phase grating in a four-level quantum system located near plasmonic metamaterials consisting of a periodic two-dimensional array of metal-coated dielectric nanospheres. The four-level quantum system interacts with a weak-probe laser field and a strong coherent coupling field with a standing-wave pattern. In the presence of plasmonic metamaterials the quantum system becomes sensitive to the relative phase between applied light. Therefore, the linear absorption and Kerr nonlinearity of the medium become phase dependent. Here, due to the standing-wave pattern of coupling light, an absorptive grating or phase grating can be formed in the quantum system. In our proposed model, we show that the diffraction efficiencies of the grating are related to the relative phase between applied fields, when the quantum system is located at different distances from plasmonic metamaterials.
Fuzzy Modeling Control and Simulation of a Class of Complex Dynamical Systems
Authors: Wang Disheng
Published: November 2020

In this paper, an equivalent fuzzy financial dynamic system model is established by using T-S fuzzy modeling method. According to Lyapunov stability theory, a fuzzy feedback controller is designed to realize chaos control. The results of theoretical proof and numerical simulation show that the fuzzy control scheme is effective. The fuzzy controller can simulate human’s experience knowledge and is simple and easy to implement. It can also be used to control general nonlinear chaotic systems.
A Comprehensive Prediction Model of Bead Geometry in Wire and Arc Additive Manufacturing
Authors: Wang Changxing , Bai Hao , Ren Chuanqi , Fang Xuewei , Lu Bingheng
Published: November 2020

To explore the effect of process parameters on the bead geometry in cold metal transfer wire arc additive manufacturing(CMT-WAAW), the response surface optimization method was adopted in this paper. According to previous experiments, some process parameters were selected as independent variables. They are wire feed speed(WFS), traveling speed(TS) and substrate temperature(ST). Some geometric parameters of the welding bead were selected as dependent variables. They are the track width (w), layer height (h), penetration (p), accumulated area (A2), penetration area (A1), aspect ratio (B) and dilution ratio (D). In the given parameter interval, the prediction model behaves good. The relative error of bead size between actual value and predicted value are all within 5%. And five sets of verification experiment were carried out to prove that the accuracy of the developed model.
Research on Mining Scheme Design Based on 3D Real Scene Model
Authors: Tang Feifei , Wang Kun , Leng Zhendong , Ruan Zhimin , Shen Cheng , Wang Yunyun
Published: November 2020

Reasonable mining scheme is of great significance for safety and efficiency of mining activity and environmental protection. In view of the limitation that the traditional mine surveying and mapping method can’t provide accurate terrain data for the mining scheme design, moreover, the common mining design software can’t be combined with the 3D real scene mining situation for scheme analysis and evaluation, this paper proposed a design method based on 3D real scene model by combining the UAV Remote sensing technology and 3D geographic information technology. This method can make the mining design agree with the demand of mining efficiency and environmental protection, improving the rationality of mining design.
Differential Pricing Models on a Remanufacturing Supply Chain Considering Product Quality Upgrade under Carbon Trading Mechanism
Authors: Wu Guangqiang , Yuan Kaifu
Published: November 2020

To study the influence of product quality upgrade on pricing decisions, a remanufacturing supply chain with a manufacturer and a retailer is investigated. Based on the carbon trading mechanism, differential pricing decision models for the remanufacturing supply chain without and with product quality upgrade are developed and solved by the backward induction through the mathematics and engineering calculation software maple18. Through the comparative analysis, we get the following results: (1) New product quality upgrade is beneficial to raise the sales price and expand market demand of new products and the profits of supply chain members and system, but it will increase total carbon emissions. (2) To reduce total carbon emission, the government should encourage enterprises to invest in emission reduction and guide consumers to buy remanufactured products.
N-body Simulation of a Young Open Cluster
Authors: Li Zhongmu
Published: November 2020

The evolutionary process of young clusters remains unclear. In order to investigate the detailed dynamical evolution of star clusters, this paper simulates a young open cluster to tens of million years, via a reliable N-body simulation code. The dynamical interactions among stars, and stellar evolution of both single and bianry stars have been taken into account. The position, velocity, effective temperature, luminosity, radius and mass of each star are finally calculated at different ages. It is shown that the size of simulated cluster increases with time. The size evolution of cluster is found to depend on the initial velocities of stars. Therefore, to determine the initial states of clusters is of key importance in the simulation of star clusters. The paralell computing technique is also tested by this simulation. The result shows that the computation speed is enhanced by six times when taking 8-core paralell computation instead of 1-core computation.
Numerical Simulation of Typhoon Storm Surge in Wenzhou Coastal Areas
Authors: Tian Chunhe
Published: November 2020

Focusing on the numerical simulation of storm surge in the coastal waters of Wenzhou, this paper uses the atmospheric Mesoscale Model5 (MM5) model to provide the wind field of typhoons, and the advanced circulation (ADCIRC) model for oceanic, coastal, and estuarine waters to simulate the process of storm surges, which adopts the finite element method with a dry-wet grid. The simulated results agree well with the observed data from marine observation stations (Longwan, Aojiang, Ruian), indicating that the simulation of storm surge is accurate. The good agreement between the simulated and observed results of four typhoons (Nos. 200216, 200414, 200509, 200608) shows that the combination of the two numerical models has the capacity to calculate storm surge elevations along the coast of Wenzhou. Using this method to simulate the 23 typhoon storm surge processes of the Wenzhou sea area of the last 23 years, we find that the majority of storm surge is between 0.5 to 2.5 m, and about one-fifth have an extreme value of more than 2 m. The maximum storm surge value recorded in Wenzhou coastal waters is 3.02 m, which occurred during Typhoon Wipha (No. 200713) at 03:00 on September 19, 2007 when landed. Water decreasing processes occurred 10 h after the main water increasing process with the maximum negative storm surge of -0.5 m. This paper can be used as a reference for storm surge forecasting, coastal engineering design and damage minimization in the future.
A Summary of Aspect-based Sentiment Analysis
Authors: Fan Shouxiang , Yao Junping , Sun Yangyang , Zhan Ying
Published: November 2020

Aspect-based sentiment analysis is a subclass of sentiment analysis tasks, focusing on judging the sentiment tendency of entities or attributes, and has received extensive attention due to fine-grained analysis results. The current research mostly summarizes the research from a single point of aspect extraction or sentiment classification, and lacks of research on the methods and problems in aspect-based sentiment analysis from the overall perspective. By using the method of literature investigation, an in-depth overview of the typical methods and solutions is given in the field of aspect-based sentiment analysis from three aspects: aspect information extraction, aspect information sentiment classification and aspect-based sentiment analysis joint modeling. Then, we discuss some of the most challenging problems existing in the field in terms of model adaptability, error transmission, knowledge and reasoning, and proposes future research opportunities in terms of strengthening knowledge representation, multi-task learning and integrating knowledge and reasoning from the overall perspective of practical application.