bluuebunny/crossref_metadata_2025 huggingface dataset:
Signal protection methods in channels with Nakagami fading
Authors: Rabin A V , Lipatnikov V A , Kuzin P I
Published: May 2020

Existing methods for modeling the quality of digital communications based on adaptive radio links usually assume the stationarity of the parameters of the investigated system and the method of frequencies’ group use. The possibilities of these methods are largely limited due to the complexity of calculating the posterior distributions of a hypothetical environment that occurs when a signal is received. As a result of this, at present, in engineering practice, there are few models that make it possible to evaluate the quality of quasicoherent reception of adaptive radio lines even in simple situations of orthogonal signals’ transmitting. The goal of this research is to develop a way to increase the noise immunity of communication in channels with fading under the Nakagami distribution law. Analytical dependences of the error probability and the radio link utilization coefficient on the permissible signal-to-noise ratio were obtained using intermittent communication in channels with fading according to the Nakagami distribution law. The method was developed to increase the noise immunity of communication in comparison with known reception methods. For example, with the fading depth 1.4, for the error probability 10–4, the energy gain will be more than 14 dB. The proposed method can be used to provide electronic protection in various communication systems.
Theoretical basis for measuring and compensating for deviations of ship pipelines at the design and installation stages
Authors: Ngo G V
Published: May 2020

In this article, the author considered the problem of increasing technological efficiency of the pipelines of ship systems at the design stage and presented the way of manufacturing and assembling of ship pipelines without measuring at the ship. For that, the author created the theoretical basis for measuring and compensating for deviations of ship pipelines at the design and installation stages. There has been done the analysis of standardized deviations controlled in the process of pipe manufacturing according to the drawings. The article reveals the reasons making inappropriate the technology of manufacturing pipes according to the project documentation by the method of bending. The reasons of deviation development and amount of deflection from structural dimensions that arise during the pipe manufacturing have been determined.
Statistical metrics for providing the population with drinking water of standard quality
Authors: Parshukov D V , Shaporova Z E , Yu Koloskova I
Published: May 2020

The problem of providing the population with drinking water is global in nature and is one of the main tasks for civilization in the long term. It is necessary not only to provide the population with water, but also to meet the regulatory requirements for hygienic, microbiological and sanitary-chemical standards. This article presents the results in statistical studies of drinking water quality for rural population. Object of research is water supply systems in rural areas of the Krasnoyarsk territory. Main research methods are descriptive statistics, Bootstrap method, and correlation and regression analysis. Based on the application of these methods statistical metrics of drinking water quality from various sources of water supply are identified, and a statistical relationship between the drinking water quality and the health of the rural population for the first time registered diseases of the digestive and endocrine systems is described. The most acute problem is the unsatisfactory condition of water supply facilities, the quality of water from underground and surface sources of centralized water supply, as well as from distribution networks.
Laws of environmental protection in Vietnam - Situation and solutions
Authors: Chu X D
Published: May 2020

Research the current situation of Vietnam’s environment. Researching the real situation of the law on environmental protection: the achievements of the law on environmental protection; Current issues raised in the regulation of environmental protection legislation. Proposing and proposing major solutions to perfect the environmental protection legislation in the coming time: perfecting the environmental protection legislation; complete the national standards and technical regulations on environment; complete the regulations on environmental impact assessment; complete the regulations on waste management, especially those in urban and industrial areas; complete the regulations on environmental protection of soil, water and air; issue documents specifying the process of publication and democratization of environmental protection activities.
Modeling of the operation modes of the electric power system to improve its sustainability of functioning
Authors: Shishlakov V F , Ya Solenaya O , Solyonyj S V , Rysin A V , Kvas E S , Kuzmenko V P
Published: May 2020

the factors affecting the increase in the static and dynamic stability of electric power systems are investigated. The modeling of the operating modes of the complex-closed power supply circuit was carried out using the DIgSilent PowerFactory software and computing system. The scheme of the electric power system with the optimal configuration and technical parameters, corresponding to the standards for ensuring the quality of electricity, was developed.
At scale, renewable natural gas systems could be climate intensive: the influence of methane feedstock and leakage rates
Authors: Grubert Emily
Published: May 2020

Renewable natural gas (RNG) is a fuel comprised of essentially pure methane, usually derived from climate-neutral (e.g. biogenic or captured) carbon dioxide (CO2). RNG is proposed as a climate friendly direct substitute for fossil natural gas (FNG), with the goal of enabling diverse natural gas users to continue operating without substantial infrastructure overhauls. The assumption that such substitution is climate friendly relies on a major condition that is unlikely to be met: namely, that RNG is manufactured from waste methane that would otherwise have been emitted to the atmosphere. In practice, capturable waste methane is extremely limited and is more likely to be diverted from a flare than from direct atmospheric release in a climate-conscious policy context, which means that RNG systems need to be more destructively efficient than a flare to provide climate benefits versus the likely alternative management strategy. Assuming demand levels consistent with the goal of using existing FNG infrastructure, RNG is likely to be derived from methane that is either intentionally produced or diverted from a flare, so essentially any methane leakage is climate additional. Further, in a decarbonizing system, RNG will likely compete with lower-emissions resources than FNG and thus provides fewer net emissions benefits over time. Anticipated leakage is climatically significant: literature estimates for methane leakage from biogas production and upgrading facilities suggest that leakage is in the 2%–4% range (mass basis), up to as much as 15%. Policy makers should consider that under reasonable leakage and demand assumptions, RNG could be climate intensive.
The application of architecture in the tradition of building house based on The Tajul Muluk text
Authors: Lubis Hanifatul Azha , Kembaren Mardiah Mawar , Waty Kembaren Farida Replita
Published: May 2020

This Study Aim to describe the application of architecture in the tradition of building a house written in a manuscript which is teh intellectual propert of tradition society in Indonesia archipelago. The data of this study were obtained from Tajul Muluk text belongs to Mr. Malim Husin who lives in Tanggabosi, Mandailing Natal District, North Sumatra. This text is basically written in Jawi character consisting of 146 pages, and contain various description of human life and it’s surrounding nature. In this study, the researchers only focus on the tradition of building house which is explained in Tajul Muluk text. The data were analyzed by using descriptive-qualitative method. The finding indicates that the tradition of building a house is displayed in accordance with the texts, starting from choosing the right day, selecting the timber, gauging columns, deciding the builder and tools, knowing the conditions to build a house which was already established, good and bad influence, selecting the land, and also some advice in building a house.
The Modelling of Commercial Zone Management on The Strip Development in Medan
Authors: Lindarto D , Harisdani D D , Sembiring S G
Published: May 2020

The face of urban development is accelerating with the development of strip development models that are not followed by environmental planning. Dr. Mansur street corridor in Medan city showing the strip development causing by growing activity of Universitas Sumatera Utara (USU). Such unplanned growth poses problems for the city’s degradation and the economic vitality along Dr. Mansur street. Such commercial zones shows a crowding atmosphere. The aims of this study was to create a model of city management addressing sprawl issues and un-sequential scenes in Dr. Mansur street, qualitatively descriptive with visual and behavioral observation methods through the identification of regional attractiveness. Using linkage strategies derived models in the form of sequential patterns that emphasize local characters visually, structurally, and collectively. The results show that with a linkage strategy linking USU’s campus and hospital districts, Bens Café, Selayang Swimming Pool, PPIA, and Syafiatul school via the pedestrian path of Dr. Mansur street corridor, sporadic growth can be organized into clusters that minimize crowding. This study is useful to the city government as a guidance of commercial zone management and revitalization programs in purposes to improving the vitality of the city.
The Study About The Comparation Between Batak Toba Traditional House in Huta Raja Samosir and Lumban Binanga Toba Samosir
Authors: Napitupulu N , Aritonang E , Silitonga S
Published: May 2020

Tobanesse is a part of Bataknesse that most of them live around Lake Toba. In every area inhabited by Tobanesse, there are some traditional houses that still can be seen today. Batak Toba traditional house is generally full of symbols. The traditional house of Batak Toba was being built not only for shelter but also full of philosophies which become the guidelines of life This research is classified into a study using descriptive research method that is comparative. The research method is being used to review the traditional house of Batak Toba by comparing the traditional house in Huta Raja Samosir and Lumban Binanga Toba Samosir based on theories about Batak Toba traditional house. The benefit of this research is to know about the comparison of Batak Toba traditional house in Huta Raja (Lumban Suhi-Suhi, Samosir) and Lumban Binanga (Jangga Dolok, Toba Samosir). The comparison can be seen based on the parts of the Batak Toba traditional house in both villages. From the results of comparisons made, there are some differences in Batak Toba traditional house in Huta Raja Samosir and Lumban Binanga Toba Samosir.
Protection of public interests in the administration of legal metrology in Medan
Authors: Pasaribu M P J , Sirait N N , Siregar M
Published: May 2020

As a metropolitan city, Medan has several advantages that support the trading activities. However, these advantages must be underpinned by legal certainty in conducting trade transactions. Measuring instruments serves as the prominent equipment in building mutual trust in business relationships. The instruments are regulated in Law Number 2 of 1981 concerning Legal Metrology (LLM). This study is legal research using a normative legal method. The data were collected from literature and were analyzed qualitatively. The results reveal several problems in the administration of legal metrology. Limited budget, lack of calibration officers, lack of support from local policies in the implementation of services, and insufficient facilities and infrastructure are the current circumstances in almost all regions including Medan. Such condition occurs because of the incomplete issues of competency in the field of legal metrology between the central and local governments after regional autonomy implementation. In conclusion, the overlapping authority between the central and local government resulted in a non-optimal administration of legal metrology in the regions. A synergy between the centralized LLM and decentralized Law Number 32 of 2014 concerning Local Government is needed. Thus protection will be achieved in the application of legal metrology services.
The influence of agroindustry on the formation of rural settlements. Case study: Bangun Sari Village, Tanjung Morawa
Authors: Aulia D N , Handayani P A N
Published: May 2020

Suburban area as a part of the structure of urban space where sub-urban areas are an important part of creating urban space. Its own characteristics due to being a transition area from city to village and has quite complex activities. One of the sub-urban livelihoods is agro-industry or agriculture. The variables in this study are morphology elements of settlements, factors that influence the formation of morphology and agroindustry, and various other indicators related to variables. The objective of this paper is to examine the characteristics of agroindustry area and find the factors that influence the formation of rural settlements. The research can provide a reference for optimizing land use in rural settlements. In this stud, the researcher used a qualitative and quantitative method. Data collection methods are recording what events were in the field carried out by informing when interviewed and observed to obtain good results and support accurate and reliable research results. The data will be processed using the SPSS method to get the required results and become integrated results. From the result, it is expected that rural settlements need more attention to improve the environments and public services. They are improving the quality of harmonious relations between urban and rural areas through agro-industry activities.
Spatial Analysis of Critical Land in Sub-Watershed of Lawe Pakam, Mardingding District, Karo Regency, North Sumatra Province
Authors: Riviana Jeni , Rauf Abdul , Rahmawaty
Published: May 2020

The Lawe Pakam Sub-watershed, Mardingding Sub-district, Karo Regency is the upstream area of the watershed. It is dominated by protected forests, which will result in significant natural disasters in the watershed downstream such as flash floods, landslides, and drought. The objectives of this study were to analyze the criticality level of land and its changes. The research method used was the critical land spatial analysis with primary data from 2019, to make comparison of secondary data from 2013 sourced from BPDAS Sei Wampu Ular to find out the changes in the critical land, and to have field examination. The results demonstrtated changes in the critical land. The criticality level of the land in Lawe Pakam Sub-watershed, Mardingding District in 2013 was categorized into very critical covering an area of 2,155.47 Ha, critical 4627.93 Ha, rather critical 6,019.72 Ha, criticallyl potential 2,307.35 Ha and not critical 3,788.04 Ha, whereas that of in 2019 was categorized into very critical covering an area of 8,014.23, critical 1,226.77 Ha, rather critical of 8,462.19 Ha, potentially critical of 268.87 Ha and not critical at 926.44 Ha. The results showed that changes in the criticality level of the land were caused by changes in the land cover. it is recommended that the critical land be rehabilitated, especially that of in protected forest areas.
Park use patterns among children– dual roles of neighbourhood parks
Authors: Yusof Nor’Aini , Abulzawaid Abrar , El-Khateeb Samah M.
Published: May 2020

The close link between neighbourhood parks and people’s physical and mental health is widely acknowledged. However, most neighbourhood parks were developed without consulting park users. As a result, many parks were deserted and not well utilised. While there is an increased interest in neighbourhood park research, little is known on the park use patterns among children. The main aim of this paper is to explore the park use patterns – or type of activities – that children perform at neighbourhood parks. Children in Alazizeyyah neighbourhood in Jeddah, Saudi Arabia were chosen as participants. The data were collected through children’s drawings and oral descriptions. The data were analysed using thematic analysis. The results showed that children engage more in active park use, in which swinging, family gathering and sliding are the top park use patterns among children in the study area. The results suggested the dual-roles of neighbourhood park – to promote physical and mental health among children and to encourage social ties among family members and friends. The results imply the importance of considering child-friendly environment in the development of neighbourhood parks to increase park visitation and use and subsequently, improve health and wellbeing.
Determination of recharge areas to optimize the function of urban protected areas on a small island
Authors: Achmad A , Burhan I M , Zuraidi E , Ramli I
Published: May 2020

The increase in population and economy as a whole has an impact on the urban and regional growth patterns, through the development of settlements, infrastructure, and other supporting activities. The city on the small island also experiences the same pattern, particularly in the city appointed as one of the national strategic areas. Uncontrolled and sporadic growth pattern will cause serious effect on environmental degradation. Sabang, nationally announced as a strategic special zone, located on a small island with land-use dominated by forests, natural topography, mountains, and hills. One effort to maintain the environment due to the development growth is to optimize the catchment areas. The purpose of this study is to determine the recharge area, which would be a consideration in planning the spatial pattern of Sabang. The factors reviewed in this study are rainfall, slope, land-use, and soil conditions. Scoring techniques were used to measure the value of these factors. Furthermore, the Geographic Information System (GIS) was used to identify the recharge areas and to overlay both raster and vector data. The result shows that the potential area as the recharge areas is 63.8% of Sabang (7,873.67 ha), which includes forest areas, mangrove beaches, housing, green open spaces, terrestrial nature reserves, mixed plantations, industrial estates, tourism, trade and services, landslide-prone areas, river areas and beaches, and reservoirs. The finding indicates that there is the need to review the land-use plan to be ecologically compatible, particularly in the so-called eco-sensitive zones where the recharge areas are necessary.
The performance of thermal property in concrete containing waste pet (polyethylene terephthalate) as an alternative sustainable building material
Authors: Halim N F A , Taib N , Aziz Z A
Published: May 2020

Polyethylene Terephthalate (PET), known as plastic, is the most widely used product in the world today. However, the increase in the amount of imperishable plastic waste is a concern today. Repurposing of plastic waste in useful products such as concrete appears as an alternative in the construction industry. This paper’s main objective is to explore the performance of thermal properties in concrete by incorporating waste Polyethylene Terephthalate (PET) as an aggregate in a concrete mix. Other than reducing energy usage in buildings, reusing waste PET should introduce an improvement in friendly waste management. Laboratory experimental analysis was done by measuring the parameters of thermal conductivity on four types of concrete design mix which includes 0% PET, PET 5%, PET 15% and 25% PET in concrete block. Finally, an implementation of a sustainable approach to these new concrete materials; the obtained results highlight their mechanical properties of enhancement in thermal property, which reduces heat gain and achieve better thermal insulation compared to a traditional concrete mixture with a similar application of test type. This implementation has been proved to optimize efficient thermal performance towards sustainable building material.
Taman Monas Resilience on vegetation due to response to the festival or “Pesta Rakyat”
Authors: Lavandya D , Dewi O , Widyarta M
Published: May 2020

Merdeka Square, where National Monument stand, is the pride of Indonesia citizen. Many festivals or “Pesta Rakyat,” such as nation ceremonies, religious events, and New Year’s Eve have been held there as determined by government regulations. There are 249 events, including festivals, that were held in year 2018 (source: Utilization of National Monument Area data). Unfortunately, they often cause environmental damage particularly on Taman Monas, the park where vegetation dominates the area. Thus, it charged initial atmosphere and function of the square and restricts people flexibility to spend their leisure time or recreation in there. In the meantime, vegetation refinement takes time. Their recovery depends on the level of damages of the plaza. With the data shown descriptively collected from the results of observations and interviews, this study focuses on Taman Monas resilience, mainly based on the vegetation, which happened due to the festivals. The purpose of this study is to know Taman Monas, as recreation space, resilience on vegetation in the way to response festival or Pesta Rakyat.
The effect of morphology of post-tsunami coastal physiography on sustainability system of relocation settlement. Case study: Gampong Saney, Lhoong sub-district, Aceh Besar regency
Authors: Elysa W , Fahmi A , Evalina Z , Myna A
Published: May 2020

Development after the 2004 tsunami in Aceh province included the relocation of housing to disaster-safe areas, and the community can continue their lives, especially in the northern and western coastal regions of Aceh. A few years after the tsunami that damaged the beach, there was a change in the physiography of the coast (growing land), so that people returned to their original activities. This paper aims to describe the changes in the management of the area and patterns of community living that adapt to changes in coastal physiography in a sustainable manner. This discussion is essential, related to the new knowledge needed as a reference for post-disaster settlement development so that the synergy between national policies and local wisdom. The Approach of the studies is interpretative phenomenological research with case studies in Gampong Saney, Lhoong sub-district, Aceh Besar District. The research method is in the form of qualitative inquiry by describing the symptoms of residence (location of housing, place of livelihood activities) and interpreting it on aspects of community life, the natural environment, and regional development factors. The results showed that relocation housing was located on a dynamic, ecologically developed hill. Regional infrastructure development has a perspective on local disaster and wisdom. Society is more sensitive to natural changes and seeks to empower. The old life is slowly reawakening to adjust to the current conditions. The observation concludes that there is a change in the pattern of settlement space, which is oriented back to the sea, and economic activity becomes more diverse between land and sea. Disasters that change the coast’s physiographic have increased the diversity of natural resources and made more effectiveness to village spatial arrangements that improve the sustainability system of community life.
Capacity building for citizens in creating green and clean villages based on empowerment and social intervention
Authors: Herdiansyah Herdis , Lucianto Andrean Eka , Asteria Donna , Handayani Dwini
Published: May 2020

The subdistrict of Koja, North Jakarta is one of the settlement areas which is densely populated. The high-density level leads to poor environmental quality, especially in terms of cleanliness and sanitation that finally disturb residents’ health, such as suffering dengue fever in early 2019. The method of writing used in this study was based on a community empowerment program that focuses on social interventions, in the form of increasing the capacity of citizens in maintaining environmental hygiene and sanitation. The aim of this program was to form an independent community that is aware of the importance of maintaining cleanliness and environmental sanitation. Social interventions are actions that carried out by a person or group of intervening people with efforts to cause change. The stages that have to be done in the empowerment process are the Stage of Awareness and Formation of Behaviour, the Stage of Transformation and the Stage of Intellectual Ability Upgrading. The results of those stages can slowly provide a forum for the implementation of some materials in the previous workshop, so that they can directly apply it to create a Clean and Green environment in urban areas.
Obstacles as determining factors of independent wheelchair user’s spatial experience at public transitional space
Authors: Fauzana Hedianur , Hendrajaya Isnaeni Ir. , Enira Arvanda S.T. , Nevine Rafa Kusuma S.Ars.
Published: May 2020

Experiencing space holds an important role in shaping one’s perception in interpreting the meaning of a space. Humans interpret spatial experiences differently, depending on their bodily experience and the senses that are included. However, for independent wheelchair users, the difference in experiencing space may be more obvious. Liebergesell et.al.[1], and Stafford [2] stated that the way wheelchair users see space is driven by their efforts to be able to mobilize easily so that accessible space becomes essential The objective of this study is to examine the role of mechanical and psychological obstacle according to wheelchair users in the public transitional space. The difficulties found by wheelchair users result a worrying spatial experience. This study uses qualitative methods with direct observation and firsthand experience. The findings of this study show that the intensity of mechanical obstacles is linear with the psychological obstacles, and both of them cause certain emotional response that determines the spatial experiences according to wheelchair users. The findings of this study can help understand the role of obstacles that might reduce the ease of access and potentially produce an unpleasing impression of public space according to wheelchair users to create inclusiveness in urban space.
Dark tourism’s products development: the cases of Fatahillah Dungeon and Taman Prasasti Museum
Authors: Kusumawardhana Indra , Tarigan Wendy Purnama , Komsary Kasih Cakaputra , Maulana Yopy
Published: May 2020

Despite academic interest in the tourism industry, there is a more sophisticated set of practice and thinking that could distinguish tourism products between mass and niche. Dark tourism, as the niche of tourism offers an economic value for tourists’ consumption that forged between reality and imagination. However, few studies were found to understand the realm of development of dark tourism varieties and attractions, which associated with death and suffering from lower political and ideology to the highest range while consuming it. Therefore, alongside the analytical thinking towards the product’s typology and variety, the examination of both SWOT (Strength, Weaknesses, Opportunity, Threats) model and TOWS (Threat-Opportunity & Weakness-Strength) matrix, synchronize the sites’ elaboration resources and capabilities in which the dark tourism’s place and space operate. Both of the qualitative case studies of Fatahillah Dungeon and Taman Prasasti museum provide the research practice that emerges from the visitors’ voices. The findings deliver undiscovered value for the product development initiative, where at the same time bids the model for the dark tourism’s consumption in term of the value creation and experience that giving the sites’ meaning in recognizing how ‘dark’ the product is and stand out from the mass.
The Implementation of Feng Shui in The Chinatown District of Asia Mega Mas Medan
Authors: Marpaung B O Y , Jenny
Published: May 2020

As a science derived from life experiences, Feng Shui is often used in many aspects of life, such as urban landscape planning and spatial configuration. Various regions in the world, especially in China, use the principle of Feng Shui in designing the area because they believed by applying Feng Shui principles in life, it could provide a good fortune in the future. Medan, as one of the cities in Indonesia has a chinatown, which is called Medan Chinatown, namely the Komplek Asia Asia Mas. Komplek Asia Mega Mas Medan is both a residential and business area. The purposes of this study are to examine the use of Feng Shui as a basis in designing the area and to discover the advantages of Feng Shui application that is applied to the Chinatown district of Komplek Asia Mega Mas Medan. The methodology used in this study is a qualitative approach. The process of collecting data and information is done by doing various observations and interviews. The results of this study will provide benefits to the development of the theory of Feng Shui which is integrated with the business area in Chinatown and provides benefits to the local government in managing the business center in the Chinatown area.
“Aur Market Place” - Activator and Interaction Space to Support and Living Up Tourism of Kelurahan Aur
Authors: Maharani A , Kamajaya P
Published: May 2020

Istana Maimun (Maimoon Palace), located in Kelurahan Aur is one of the historical heritage Palaces during Deli Sultanate era that still stands beautifully and becoming an iconic Landmarks of Medan – Sumatera Utara, Indonesia. This Palace has a lot of historical value in branding identity also an image of Medan regarding the Glory of Deli Sultanate in the past and has a strategic location in the side of Deli River. The potential river which should be one of attraction becomes a place for waste by locals and causing problems that its existence is being covered. After a site visit and collecting data from different sources, authors think that Aur region has potential to the development of cultural, artistic, and historical tourism. However, this area still shortcoming of tourism aspects, such as commercial facilities, activities, attractions, access, and accommodations that can make visitors feel welcomed and want to spend their time enjoying the atmosphere. Therefore, authors trying to introduced more of mixed facilities that can be called as “Aur Market Place” which hopefully can support the optimization of Istana Maimun and surround its area in continuous ways, where this public space can be activator of another development by government towards Aur region and becoming magnets for all ages which can lead interactions between locals and tourist in one place.
Reconstruction of volcanic structures: examples from Kazakhstan and Egypt
Authors: Dyakonov V V , Kotelnikov A E , Mahmoud A S , Kotelnikova E M
Published: May 2020

The existing hypotheses and paradigms about the structure of the Earth’s crust and its parts, where igneous rocks are present, do not always show facial connections of rocks and explain the reasons for their formation, as well as the genetic connection of ore deposits. These issues can be solved with the help of paleovolcanic reconstruction of the territory. This paper explains the stages of formation of paleovolcanic structre in aid for their reconstruction. Such structures represent the main units of territories with existence of igneous rocks. Examples of reconstruction of certain territories of Kazakhstan and Egypt are given. These structures are tensely related to large metallic ore deposits of Mo, Cu, Zn, Au, Ag, Ni, Co, etc. These structures have various ages of formation and degree of development. Paleovolcanic structure has many similar features to recent well-preserved structures. Our model reset on the lithostatigraphic study of contributing units around oldest complexes and their geochronological sequence, spatial distribution and pattern fault systems and dykes. These researches have not only theoretical interest for science, but also practical. Reconstruction of such structures allows to allocate the most prospective areas for search the overlapped endogenous mineralization (porphyry copper-gold, copper-sulphide, poly-metallic deposits, etc.).
Changes in land use and suitability of spatial planning on the paddy field in Gorontalo Regency
Authors: Ekafitrawan M , Jamil M H , Useng D
Published: May 2020

Agricultural land is the main and unique factor of agricultural production because it is difficult to replace in an agricultural business process. This research is intended to conduct a spatial study of changes in land use, especially paddy fields and the suitability of spatial use with the regional spatial plan (RTRW). In this study, an analysis of land-use change was carried out by comparing multitemporal land cover data (time series), and the suitability analysis of spatial use by comparing actual land cover data with the direction of spatial use specified in the RTRW document. Both of these analyses were carried out by overlaying maps using GIS (Geographic Information Systems) spatial data processing software. The results showed that within ten years (2007-2017), an increase in the total area occurred in the plantation (1.4%), built land (41.37%), dry land/fields (1.97%), and lake/body of water land-use class (11.14%). While the area of forest, paddy fields, and shrubs are reduced by 0.12%, 5.09%, and 6.68%, respectively. The results of overlaying actual land use maps with spatial pattern maps on Gorontalo Regency RTRW show that most (65.67%) land use in Gorontalo Regency is still following the direction of spatial use which has been specified in the RTRW. Whereas 34.13% of other land uses were identified as not yet suitable (30.57%) and not suitable (3.55%) with the RTRW. Land use that is not yet suitable is still possible to change to adjust the spatial Plan in the future. Regarding paddy fields, the land-use suitability matrix with the RTRW shows that 86.18% of the paddy fields in Gorontalo Regency are following the RTRW (located in the allotment of wetland agriculture areas), while the remaining 13.82% are not following the RTRW. There is also the potential for new paddy fields with a total area of 6,293 hectares.
Hunting in the seas: population status and community perspectives on giant clams (Tridacnidae) and Napoleon wrasse (Cheilinus undulatus), endangered marine taxa of the Wallacea Region, Indonesia
Authors: Yusuf S , Moore A M
Published: May 2020

Giant clams (Tridacnidae) and the Napoleon wrasse (Cheilinus undulatus) are valued fisheries commodities for local consumption and trade. Heavy exploitation has greatly reduced their abundance in the Wallacea Region. This study on giant calm and Napoleon wrasse around Sulawesi is based on data from biophysical (SCUBA diving) and socioeconomic surveys from 2004 to 2016 in the Spermonde Archipelago and around Selayar Island, South Sulawesi; and in Central Sulawesi (primarily in the Togean Islands) between 2001 and 2015. Giant clam population abundance declined, with some larger species (Tridacna gigas, T. derasa, T. squamosa, Hippopus porcellanus) no longer found at many sites. Despite increasing awareness regarding the protected status of giant clams, exploitation has continued, including mass collection for traditional festivals in the South Sulawesi islands. Specifically intended for export, fishing uses destructive methods, Napoleon wrasse abundance also declined. Habitat (coral reef) degradation likely also had a negative impact. Low densities could threaten reproductive success. Effective protection measures are needed to rebuild depleted giant calm and Napoleon wrasse populations. This is done to promote the natural process of reproduction and recruitment, and degraded habitat should be rehabilitated through passive or active coral reef restoration. Ex-situ (hatchery) breeding and restocking could speed the recovery of depleted giant clam populations.
Empowering youth development and empowerment program (P3MD) in the District of Lappariaja, Bone Regency, South Sulawesi Province, Indonesia
Authors: Suherman  , Taba M I , Rahmadanih
Published: May 2020

Development and empowerment programs for rural communities are expected to be able to have an impact on youth empowerment. This study aims to determine the impact of youth empowerment in P3MD in Lappariaja District. This research is classified as a qualitative descriptive study. The subjects of this study were P3MD experts, village assistants, sub-district governments, village governments / village officials, the Office of Community and Village Empowerment and Youth Groups. Data collection is done by using interviews, observation, documentation. Researchers are the main instrument in conducting research. Techniques used in data analysis are data collection, data reduction, data presentation, and conclusions. The results showed that youth empowerment on the implementation of the P3MD program had an impact on empowerment with two levels of empowerment, in accordance with the empowerment indicators issued by UNESCO.
Mineralogy and quality of Banti Coal, Baraka District, Enrekang Regency, South Sulawesi Province, Indonesia.
Authors: Widodo S , Sufriadin  , Thamrin M , Wahyufirmansyah  , Jafar N
Published: May 2020

Coal deposits in Banti Village, Enrekang Regency, South Sulawesi Province, Indonesia are geographically located at coordinates: 03°27‘59.72” south latitude and 119°51‘34.35” east longitude and are categorized as medium coal quality. This is evidenced by the results of several analysis that have been carried out. Microscopic analysis showed that there were three dominant minerals such as quartz, pyrite and clay. While the results of mineralogical analysis using X-ray diffraction (XRD) coal in Banti Village show the contents of minerals such as quartz, illite, kaolinite, pyrite, and hematite. Proximate and total sulfur analysis of Banti coal was carried out in 3 samples, namely; sample ENRE-1A, ENRE-1C, ENRE-1D. Banti coal samples shows the average value of total moisture 2.29%, 13.79% ash content, 28.77% volatile matter, 55.83% fixed carbon, and 1.16% total sulfur content. ENRE-1A coal sample shows total moisture 3.20%, ash content 13.72%, volatile matter 27.57%, fixed carbon 55.52%, and total sulfur content 1.84%. ENRE-1C coal sample contains the lowest total moisture which is 1.68%, the highest ash content is 16.9%, volatile matter is 27.79%, fixed carbon is 53.76%, and total sulfur content is 0.92%. ENRE-1D coal sample showed total moisture content of 1.98%, ash content of 10.76%, volatile matter of 31.06%, fixed carbon of 65.2%, and total sulfur content of 0.70%. Analysis of calorific value of Banti coal samples respectively shows 6,785 kcal/kg for sample ENRE-1A, 6,794 kcal/kg for sample ENRE-1C, and 7,229 kcal/kg for sample ENRE-1D. Analyses of the three coal samples were carried out based on ASTM 1981. The presence of quartz, illite, kaolinite, pyrite, and hematite minerals in the coal samples affects the hight ash content in Banti coal. The sulfur content present on Banti coal is mainly due to the presence of pyrite. In general, the ash and sulfur content of Banti coal is classified as medium coal category. Banti coal has good quality for further study, especially coal seam ENRE-1D (coal seam containt hight calorific value and low total sulfur content).
Consumption and in vivo digestibility of feed supplemented by katuk (Sauropus androgynus) and gamal (Gliricidia sepium) leaves in friesian holstein cattle
Authors: Sutomo S , Garantjang S , Natsir A , Ako A
Published: May 2020

The aim of this research is to understand the effects of katuk and gamal leaf supplementation on production and quality of milk at early lactation period. The research was conducted in dairy cattle husbandry, Enrekang, with completely randomized design consisting of 4 treatments and 4 repetitions, yielding totally 16 experimental units. The experimental diet was made of forage (60%), concentrate (25%), gamal leaf (15%), and katuk leaf (135 g, 155 gr, 175 g). The results showed that supplementation with katuk leaf significantly contributed to production of milk. The diet enriched with katuk leaf of 155 gr and gamal leaf of 15% (treatment P2) was evidenced to exert desirable effects on consumption and digestibility of the forage as source of fibers.
Design and Analysis of Flow Field in Electrochemical Machining of Micro Grooves on Gear Tooth Surface
Authors: Chen Yuanlong , Zhang Tengfei , Lin Hua , Chen Qi
Published: May 2020

The gear with solid lubricating material embedded in micro grooves on gear tooth surface can better adapt to severe lubrication conditions. Electrochemical machining with the mask has shown good feasibility in machining micro grooves for filling solid self-lubricating materials on the tooth surface of gear. The electrolyte flow field is a vital contributor to the accuracy of electrochemical machining, therefore, it is important to design a suitable electrolyte flow mode. In this paper, based on the distribution characteristics of micro grooves on gear tooth surface, two kinds of shaped cathodes are designed, one with electrolyte flow slot and the other without. Each cathode can form two electrolyte flow modes respectively. The effects of four electrolyte flow modes on the stability of the machining gap flow field are analyzed by using computational fluid dynamics. The simulated results show that the cathode without electrolyte flow slot is beneficial to electrolyte flow during electrochemical machining with the mask, notably when the electrolyte flows into the machining gap from the face of the gear.
Damage Assessment Using Natural Frequency on Concentric Braced Frame Steel Structures
Authors: Risadi Ahmad Zaki , Rastandi Josia Irwan , Sentosa Bastian O.B. , Orientilize M.
Published: May 2020

At present, structural assessment using dynamic characteristics remains to be explored. In this study, a correlation between damage index and natural frequencies of Concentric Braced Frame steel structures has been observed. The study consists of two sections: the first section presents the calculation of the damage indices of structures by means of monotonic and semicyclic pushover analyses using OpenSEES software, while the second section evaluates the structures’ natural frequencies by means of modal analyses using SAP2000 software. Our results show a trend in which with increasing amounts of lateral load, natural frequencies of the structures decrease while the damage indices increase. There is also an apparent ‘jump’ in the damage index values after the lateral loads reach their critical limits. The study results help the understanding of the structural assessment process at the global scale.
Use of a digital delirium pathway and quality improvement to improve delirium detection in the emergency department and outcomes in an acute hospital
Authors: Vardy Emma , Collins Niamh , Grover Umang , Thompson Rebecca , Bagnall Alexandra , Clarke Georgia , Heywood Shelley , Thompson Beverley , Wintle Lesley , Nutt Louise , Hulme Sarah
Published: May 2020

Background

delirium is a common condition associated with hospital admission. Detection and diagnosis is important to identify the underlying precipitating cause and implement effective management and treatment. Quality improvement (QI) methodology has been applied in limited publications. There are even fewer publications of the role of development of the electronic health record (EHR) to enhance implementation.

Methods

we used QI methodology to improve delirium detection in the emergency department (ED). Plan Do Study Act (PDSA) cycles could be broadly categorised into technology, training and education and leadership. As part of the technology PDSA an electronic delirium pathway was developed as part of an NHS England digital systems improvement initiative (NHS England Global Digital Exemplar). The electronic pathway incorporated the 4AT screening tool, the Confusion Assessment Method, the TIME delirium management bundle, investigation order sets and automated coding of delirium as a health issue.

Results

development of the EHR combined with education initiatives had benefit in terms of the number of people assessed for delirium on admission to the ED and the total number of people diagnosed with delirium across the organisation. The implementation of a delirium pathway as part of the EHR improved the use of 4AT in those 65 years and over from baseline of 3% completion in October 2017 to 43% in January 2018.

Conclusion

we showed that enhancement of the digital record can improve delirium assessment and diagnosis. Furthermore, the implementation of a delirium pathway is enhanced by staff education.
CCLA: an accurate method and web server for cancer cell line authentication using gene expression profiles
Authors: Zhang Qiong , Luo Mei , Liu Chun-Jie , Guo An-Yuan
Published: May 2020

Cancer cell lines (CCLs) as important model systems play critical roles in cancer research. The misidentification and contamination of CCLs are serious problems, leading to unreliable results and waste of resources. Current methods for CCL authentication are mainly based on the CCL-specific genetic polymorphism, whereas no method is available for CCL authentication using gene expression profiles. Here, we developed a novel method and homonymic web server (CCLA, Cancer Cell Line Authentication, http://bioinfo.life.hust.edu.cn/web/CCLA/) to authenticate 1291 human CCLs of 28 tissues using gene expression profiles. CCLA showed an excellent speed advantage and high accuracy for CCL authentication, a top 1 accuracy of 96.58 or 92.15% (top 3 accuracy of 100 or 95.11%) for microarray or RNA-Seq validation data (719 samples, 461 CCLs), respectively. To the best of our knowledge, CCLA is the first approach to authenticate CCLs using gene expression data. Users can freely and conveniently authenticate CCLs using gene expression profiles or NCBI GEO accession on CCLA website.
Development of human ectocervical tissue models with physiologic endocrine and paracrine signaling†
Authors: McKinnon Kelly E , Sensharma Rhitwika , Williams Chloe , Ravix Jovanka , Getsios Spiro , Woodruff Teresa K
Published: May 2020

There is a shortage of research models that adequately represent the unique mucosal environment of human ectocervix, limiting development of new therapies for treating infertility, infection, or cancer. We developed three microphysiologic human ectocervix models to study hormone action during homeostasis. First, we reconstructed ectocervix using decellularized extracellular matrix scaffolds, which supported cell integration and could be clinically useful. Secondly, we generated organotypic systems consisting of ectocervical explants co-cultured with murine ovaries or cycling exogenous hormones, which mimicked human menstrual cycles. Finally, we engineered ectocervix tissue consisting of tissue-specific stromal-equivalents and fully-differentiated epithelium that mimicked in vivo physiology, including squamous maturation, hormone response, and mucin production, and remained viable for 28 days in vitro. The localization of differentiation-dependent mucins in native and engineered tissue was identified for the first time, which will allow increased efficiency in mucin targeting for drug delivery. In summary, we developed and characterized three microphysiologic human ectocervical tissue models that will be useful for a variety of research applications, including preventative and therapeutic treatments, drug and toxicology studies, and fundamental research on hormone action in a historically understudied tissue that is critical for women’s health.