bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Biaya Dan Waktu Pada Pekerjaan PVD – Preloading Proyek Jalan Tol Trans Sumatera Ruas Simpang Indralaya – Prabumulih Dengan metode Konsep Earned Value Analysis
Authors: Anggraini Fitri , Nisumanti Sartika , Hadiyana Djaenudin
Published: June 2023

ABSTRACT

 The implementation of this toll road construction project requires cost and time control. For this reason, research is carried out using the earned value analysis method in order to detect as early as possible if there is a cost overrun or delay that may occur in the implementation of a project. For the results of the analysis, it is found that based on the calculation of the performance analysis of the progress of this work, the cost performance index is 1.212 this value indicates a CPI > 1 which means that the expenditure is smaller than the planned budget. The schedule performance index is 0.889, this value indicates SPI < 1, which means that the work has been delayed from the plan. The result of the calculation of the estimated cost at the time of project completion (EAC) is Rp 19,035,298,952. So, the total cost needed to complete the project is Rp 19,035,298,952 indicating that the cost required for project completion is less than the planned budget of Rp 23,073,860,159, from this value the difference is Rp 4,038,561,207. From the analysis of the estimated completion time or Estimate Completion Date (ECD), it is found that the time required to complete the project is 465 days, which means that the work has been delayed by 15 days.

 Keywords: Time, Cost, Earned Value Concept, PVD-Preloading.

 

ABSTRAK

 Pelaksanaan proyek pembangunan jalan tol ini dibutuhkan pengendalian dari segi biaya dan waktu. Untuk itu dilakukan penelitian dengan menggunakan metode earned value analisys agar dapat mendeteksi sedini mungkin bila terjadi pembengkakan biaya maupun keterlambatan yang mungkin terjadi dalam pelaksanaan suatu proyek. Untuk hasil analisis yang didapatkan bahwa berdasarkan perhitungan analisa prestasi progress pekerjaan ini, indeks penampilan biaya bernilai 1,212 nilai ini menunjukkan CPI > 1 yang artinya pengeluaran lebih kecil dari anggaran yang direncanakan. Indeks penampilan jadwal bernilai 0,889 nilai ini menunjukkan SPI < 1 yang artinya pekerjaan mengalami keterlambatan dari rencana. Hasil perhitungan prakiraan biaya saat penyelesaian proyek (EAC) Rp 19.035.298.952. sehingga total biaya yang dibutuhkan untuk menyelesaikan proyek adalah Rp 19.035.298.952 menunjukkan bahwa biaya yang diperlukan untuk penyelesaian proyek lebih kecil dari anggaran yang direncanakan sebesar Rp 23.073.860.159, dari nilai tersebut didapat selisih sebesar Rp 4.038.561.207. Dari hasil analisa prakiraan waktu penyelesaian atau Estimate Completion Date (ECD) didapat waktu yang dibutuhkan hingga akhir proyek selama 465 hari yang artinya pekerjaan mengalami keterlambatan selama 15 hari.

Kata kunci: Waktu, Biaya, konsep nilai hasil (Earned Value Concept), PVD-Preloading.
STRATEGI DAN SKENARIO PERENCANAAN KOTA CHICAGO, ILLINOIS, AS
Authors: Kinasih Sitti Sarifa Kartika
Published: June 2023

The research about urban design within sustainable development system in Chicago descripts about environmental planning, renewable energy, to be appropriated with economic development that is going on in the city. Sustainability planning in the first skyscraper city in the world began with Heat Wave tragedy that caused by the global warming effect on 1995 having 3 eminent programmes, include Chicago Climate Action Plan, Chicago Green Roof Program, and Chicago Conservation Corps. The earnestly of this city on sustainable development showed from the unceasing and effectively city strategies and ordinances that launched by the Chicago government, also the departments is very massive to support sustainable development. Fund incentive, technical support, and great enthusiasm is totally given to the Chicago inhabitants. The research method that used to explain this research is content analysis. The environment responsibility showed on Chicago cityÂ  governmentâ€™s care for the aspect of waste, water, green roof, land, and tenant aggrement. The economic opportunities showed on Chicago cityÂ  governmentâ€™s care for the aspect of transportation, air, and energy. The social equity principal showed by Chicago cityÂ  governmentâ€™s actions with made a rehabilitations for slum areas, make research about housing and job opportunities, made a coalition for comprehensive education fund intercities, and made a Chicago conservation corps.Keywords: sustainable development, city, environment, resource, policy
PERKEMBANGAN PERUMAHAN SKALA KECIL DAN FAKTOR-FAKTOR YANG MEMPENGARUHI PERKEMBANGANNYA DI KELURAHAN BUKIT LAMA PALEMBANG
Authors: Putri Faradiah Hildy
Published: June 2023

Housing construction by private developers in Kelurahan Bukit Lama began in 1986 with the construction of Perumahan Poligon. Since then, housing construction continues in Kelurahan Bukit Lama. Residential housing is developed by private developers with the goal to the middle to the top. At the beginning, it is built a large-scale housing or housing that has numbers of units but this time more housing developments leading to small-scale housing. Small scale housing developments is seen in three aspects; growth, spatial, and actors. These three aspect are changed in different time unit. Small-scale residential development is influenced by factors of housing location. Housing location factors are seen from developer and buyer.Keywords: development, factors
PENGGUNAAN KOMBINASI TITIK IKAT STASIUN GLOBAL IGS DAN TITIK IKAT STASIUN GPS REGIONAL YANG DIIKATKAN PADA ITRF-2008 DALAM PENDEFINISIAN STASIUN GNSS CORS GMU1
Authors: Artini Sri Rezki
Published: June 2023

The CORS GNSS station can be used as a reference point in determining relative positions in both real time and post processing. This reference point is used for the measurement of points on the surface of the earth. In this measurement requires a high accuracy that is up to a fraction of a millimeter. In this research, GNSS CORS station which is used is GNSS CORS GMU1 which has been operated since 2009 which is located in Engineering Faculty Building of Department of Geodesy Engineering (Level Three) Universitas Gadjad Mada Yogyakarta, Indonesia. This study redefined the coordinates of GNSS CORS GMU1 using GNSS observation data for seven days from July 14, 2012 until July 20, 2012 using a combination of IGS and regional global bundle points. The tipping points of IGS global station used in this research are DGAR, GUAM, IISC, KARR, KUNM, PIMO, and TOW2. While the binding point of Regional station used is BAKO, CJPR, CDNP, CSRJ, SAMP, CBAL and CBIT. Data processing using scientific software GAMIT / GLOBK. The result of this research is 3D cartesian coordinate value from GNSS CORS GMU1 station in 2012 and its position speed. Coordinate of processing result that is X (m) = -2200206,97088 m Â± 26,08 mm; Y (m) = 5924895,45433 m Â± 26,30 mm; Z (m) = -855932,55993 m Â± 192,51 mm. It can be seen that the standard deviation resulting from the combined processing of bundle points of Global IGS and regional stations is up to millimeter fraction. Speed position of GNSS CORS GMU1 station in 2012, that is VX = 0,02907 m / year Â± 0.25410 m; Vy = 0.13655 m / year Â± 0.47235 m; Vz = -0.07798 m / year Â± 1.39 m.Keywords: GNSS CORS GMU1 station, GPS connectivity, GAMIT software
PENGARUH PERUBAHAN TATAGUNA LAHAN TERHADAP KARAKTERISTIK HIDROGRAF BANJIR (Studi Kasus DAS Dengkeng dan DAS Jlantah Bagian Hulu Bengawan Solo Kabupaten Sukoharjo, Provinsi Jawa Tengah)
Authors: Aurdin Yulyana
Published: June 2023

The flood event on December 26, 2007, in Bengawan Solo river, the Province of Jawa Tengah has caused loss and submerged housed of thousands of people. The growing issue in regard to the event indicated that the cause was the changing response of the catchment area to the rainfall due to the land use changing. The changing of the hydrograph shape and the amount of peak discharge can be interpreted as the form of land use changing consequences. Thus, it is required to have a hydrological analysis to identify the changing of peak discharge due to the impact of land use changing. In this study, hydrological analysis was carried out for Dengkeng and Jlantah watershed as the critical catchment areas. The method used for the analysis was calculating unit hydrograph by using the Collins method in the conversion process of rainfall-runoff translation, calculating the effective rainfall by using the Soil Conservation Service-Curve Number (SCS-CN) and calculating the design flood with return periods of 2, 5, 10, 25, and 50 years by using the frequency analysis method. The design flood calculation was carried out for various land use conditions. Results of this study showed that the CN value as the main variable of the land function in Dengkeng and Jlantah watershed from 2003 to 2009 has not indicated significant improvement changes. Therefore, in order to rehabilitate forest and critical land as well as to optimally improve the development of the catchment areas in the future land use control is necessary. Based on the plans by BPDAS Solo, the results indicated that such rehabilitation influenced the changing of CN value and the losses factor as well as to the effective rain in rainfall-runoff translation. This was indicated by the declining flood peak discharge in 2025 from 18% to 66%.
KUAT TEKAN BETON MUTU TINGGI DENGAN PENAMBAHAN CONPLAST SP 337
Authors: Asri Rusman , Nisumanti Sartika
Published: June 2023

Concrete is one of the building materials are very useful in the construction, where concrete is a mixture ofPortland cement (PC) or other hydraulic cement composition includes a mixture determined between fineaggregate, coarse aggregate and water, with or without the use of additional materials. The study was conductedto determine the compressive strength of concrete and other specifications that concrete is achieved by theaddition of Conplast SP 337. That is done using a cube-shaped test specimens measuring 15 cm x 15 cm x 15 cmwith 5 (five) variation of mixture B1, B2, B3, B4, and B5, each four (4) specimens. for each test age of 3 days, theage of 7 days, 14 days, 21 days and 28 days. From the research, it was found that the compressive strength ofconcrete with each stir the mixture obtained 1.2: 2: 3 (B5) compressive strength greater of 4.5% of thecompressive strength of normal concrete specimen (B1). And the compressive strength of the mortar 1: 2,5: 3 withthe addition of SP 337 (B5) is lower than the compressive strength of normal concrete specimen (B1) amounted to23.71%.
KONSEP PERKEBUNAN KELAPA SAWIT BERKELANJUTAN
Authors: Dara Kospa Herda Sabriyah
Published: June 2023

This study aimed to design a concept of sustainable palm oil management that took into account economic, socio-political, and environmental aspects using the Agribusiness Partnership approach. The approach used to establish a concept was using synergic relationships between stakeholders (government, private sector and community) with considering sustainable natural resource management aspects. The result considered that the concept of agribusiness partnership in the management of oil palm plantations can be sustainable if it meets three aspects of sustainable management. From the economic point of view, it can increase community's income. Meanwhile, in terms of social welfare, it can improve through the equitable distribution of palm oil. Environmental issues can be maintained because of the synergic cooperation between government, private and community. Keywords : Sustainable palm oil, Oil Palm Cultivation, Integrated Farming Partnership Â
PENGADAAN TANAH UNTUK PEMBANGUNAN PERUMAHAN DI KOTA PALEMBANG
Authors: Agustian Endy
Published: June 2023

Residential development in Palembang city is not a simple problem, because residential development needÂ  always grows and population growth increases every year,Â  but the supply of land for residential development is limited. The research shows that residential developers have noticed the three factors of land provision for residential development. Based on the physical aspect, the wide area of residential is 4 hectare, and land designation statusÂ  is garden soil. The easy access and appropriatenessÂ  to the RTRW are the considerations of developers for building the residence. Based on the institutional aspect, the status of land rights is property rights by way of purchase. Moreover, land supply through land bank is assessed helping the residential developer. Local governments sometimes help the developers, but the developers have difficulty in particular section permits the acquisition of development principles at a location due to government bureaucracy and complex rule. Based on the economic aspect, land prices are cheap and profitable and they become the reasons for choosing the location of residential developers.Â  The price of land per meter2 at the time of purchase was relatively high, indicating the residential developers in Palembang city are very effective in raising the economic of land value. Of the three aspects, the economy aspect is prioritized by residential developers, because residential developers as enterpreneurs have an orientation to get the profit.Keywords : Development, Residential Developer
EVALUASI KELAYAKAN GEDUNG NEGARA (BPBD PAGAR ALAM) DENGAN METODE DaLA
Authors: Puspita Norma
Published: June 2023

According to Law Decree No. 28 of 2002 that the building is important as a man carries out its activities in order to achieve various objectives that support the realization of national development goals. Given the importance of the office building, the construction of office buildings should be viewed from several sides. These include a review of the feasibility of the construction of the building, in conjunction denagan classification of office buildings in accordance with the level of service and the ability to receive the load. Unlike the construction of private buildings in which the amount of revenue per year from the building in question can be calculated, whereas in building the State, the value of the advantages seen from the benefits received by the public of the existence of the building and the performance of the agency, the profit received by the government or the State are social benefits itangible. This study aimed to evaluate the feasibility of building the State BPBDs Pagar Alam based disaster mitigation management. The method used in this study using spatial analysis, DaLA (Damage and Loss Assessment), and the method of SWOT (Strength, Weakness, Opportunities, and Threats) analysis to determine the feasibility of recommendations for the construction of state buildings. The results of the feasibility analysis of investment based methods DaLA known that the payback period occurred in the year to 8 under the assumption that acceptance comes from the local budget, while expenditure is the amount of compensation issued by the State disaster. Based on the analysis of spatial planning both sites located outside the district administrative center. Meanwhile, if viewed from the analysis of disaster-prone building at the site suggested BPBDs Atung Youngest who are outside the danger zone of the mountain api.berdasarkan SWOT analysis is known that the location in the Village of Ulu Rurah more recommended for building construction BPBDs. Keywords : Feasibility, the State House, DaLA, SWOT
KARAKTERISTIK PERMUKIMAN KUMUH DI KELURAHAN PAYU PUTAT PRABUMULIH
Authors: Alhafez Ricky Ravsyan
Published: June 2023

Economic factors and the increasing number of residents resulted in the availability of land decreases. Communities with middle and upper economic level course will easily find suitable land allotment for a place to stay. While inversely proportional to the lower middle income people who can hardly be said of land - the land they occupy is certainly not in conformity with the allotment of land as a place for living. And usually with a low economic level of the occupancy of the community are far from habitable. Can hardly be said that all parts of Indonesia there are slums, and not least in the area of Breast Putat village Prabumulih. The area is located in the banks of the river should be a green open spaces are just a lot of settlements - settlements that are not habitable building with major construction timber and do not care about good sanitation as if - if mushroomed in the region. See the facts on the ground which does not allow for the relocation of people living in the area at this time to be a challenge to help both the community and the government to give an idea as to what the character of the existing settlements in the Region's Breast Putat. So that could be considered for the government to relocate or improve existing settlements. Keywords: Economic factors, slums, Payu Putat Prabumulih Village
PERENCANAAN DAN PERANCANGAN ISLAMIC CENTER DI KABUPATEN LUMAJANG
Authors: Alhafez Ricky Ravsyan , Wicaksono Bambang , Solikhudin M.
Published: June 2023

The Islamic Center in Lumajang district is a religious institution as a center for the development and development of religion and Islamic culture in a continuous and directed, so as to realize an active and dynamic religious life in the community towards the full development of people, which emphasizes on non-formal education in a mass. The pattern of activities of Islamic Center in Lumajang Regency which will be planned to have the scope of service area of Lumajang Regency and its surroundings, the emphasis of operational activities that include ritual, social and commercial activities with attention to the potential of Islam and local cultural characteristic so that its existence can be an integral part of growth society is increasingly dinamis.Pendekatan on the analysis of the Islamic Center in Lumajang District Planning approach Islamic Center in Lumajang using suppression approach that includes design: geometry approach in Islamic architecture, facade precedent geometry in architecture, approach to offenders and activity, and the amount of space studies. The main activity groups include: building guidance of ummah (such as mosque, multipurpose room, da'wah media), administration and management building (management building), education building (Madrasyah, library building). Supporting activity groups include: (food court), service activities service buildings.Keywords: Planning, Islamic Center, Lumajang District
PERENCANAAN DAN PERANCANGAN GEDUNG CONVENTION CENTRE DIKABUPATEN PENUKAL ABAB LEMATANG ILIR (PALI)
Authors: Yasir Abdul , Sastika Anta , Supriyono Supriyono
Published: June 2023

Regency of Penukal Abab Lematang Ilir (PALI) is one of regencies in South Sumatera Province. As newly formed districts cause the lack of facilities and infrastructure to support public needs. This is because the local government is currently more focused on development and infrastructure. As a result of the unavailability of various public facilities in the Pali regency, many activities and events held by local government agencies and private sector should be held in places that are not in accordance with its function, due to the absence of buildings that can accommodate these activities. The development of Pali district into a new district will certainly be a lot of large-scale events to be held in Pali District. The planning of the Convention Center in Pali Regency is planned with the assumption that 10 years ahead the condition of urban infrastructure and economy of Pali regency have progressed, so that there will be more activities in Pali regency, and more and more investors entering Pali regency can become target market for the Convention Center Building.Key words: Public Facilities, events, infrastructure, Convention Center.
PENGADAAN TANAH UNTUK PEMBANGUNAN PERUMAHAN DI KOTA PALEMBANG
Authors: Agustian Endy
Published: June 2023

Residential development in Palembang city is not a simple problem, because residential development needÂ  always grows and population growth increases every year,Â  but the supply of land for residential development is limited. The research shows that residential developers have noticed the three factors of land provision for residential development. Based on the physical aspect, the wide area of residential is 4 hectare, and land designation statusÂ  is garden soil. The easy access and appropriatenessÂ  to the RTRW are the considerations of developers for building the residence. Based on the institutional aspect, the status of land rights is property rights by way of purchase. Moreover, land supply through land bank is assessed helping the residential developer. Local governments sometimes help the developers, but the developers have difficulty in particular section permits the acquisition of development principles at a location due to government bureaucracy and complex rule. Based on the economic aspect, land prices are cheap and profitable and they become the reasons for choosing the location of residential developers.Â  The price of land per meter2 at the time of purchase was relatively high, indicating the residential developers in Palembang city are very effective in raising the economic of land value. Of the three aspects, the economy aspect is prioritized by residential developers, because residential developers as enterpreneurs have an orientation to get the profit.Keywords: Development, Residential Developer
Kinerja Katalis Naoh dan KOH ditinjau dari Kualitas Produk Biodiesel yang dihasilkan dari Minyak Goreng Bekas
Authors: Andalia Winny , Pratiwi Irnanda
Published: June 2023

AbstractThe use of waste cooking oil as raw material for biodiesel is very advantageous in terms of health and also in terms of process. The process of transesterification reaction with an alkali catalyst with NaOH or KOH to produce quality products with excellent biodiesel. The research objective is to find out how to increase the influence of methanol concentration on the quality of biodiesel as determined by ASTM or EN. For all comparisons methanol concentration the result showed of acid number, viscosity and density tends to constant with increasing concentration of methanol, while the water content and methanol content increased slowly with increasing concentrations of methanol and this occurs for both types of catalyst used.Keywords : waste cooking oil, quality of biodiesel, methanol consentrationÂ AbstrakÂ Minyak goreng bekas (jelantah) merupakan minyak goreng yang telah mengalami oksidasi selama proses penggunaannya, sehingga tidak aman bagi kesehatan bila terus digunakan. Salah satu pemanfaatan minyak jelantah adalah untuk pembuatan biodiesel. Biodiesel adalah bioenergi atau bahan bakar nabati yang dibuat dari minyak nabati (lemak hewani) melalui proses transesterifikasi. TransesterifikasiÂ  adalah proses reaksi (trigliserida) yang terkandung dalam minyak direaksikan dengan metanol dan dibantu oleh katalis alkali, sehingga menghasilkan alky ester (biodiesel). Tujuan penelitian adalah menentukan kondisi optimum pada katalis NaOH dan KOH dalam mendapatkan produk biodiesel yang berkualitas pada suhu 60-650C yaitu pada katalis KOH dengan FFA 0,2048, water content 0,317, metanol content 0,317, angka asam 0,019635, densitas 0,85806, viskositas 4,5684, konversi 98,89%,Â  dan yield 90%.Kata kunci : Biodiesel,Â  transesterifikasi,Â  methanol dan water content, angka asam,Â  viskositas, densitas, yield
Analisis Dinamik Fondasi Mesin Generator Sets pada Power House Building Project Lube Oil Blending Plant
Authors: Hertiany Isti Radhista , Hardiyatmo Hary Christady , Faris Fikri
Published: June 2023

ABSTRACTGenerator set machine foundations in the Power House Building Project Lube Oil Blending Plant is located on Cilegon Industrial Estate Area (KIEC), Banten. Machine foundation is analyzed in three conditions to check the safety condition against the dynamic load. The first condition is the existing condition where the block foundation is not embedded in the ground. From the results of the analysis of this condition, the natural frequency value is 20,077 Hz. It is very close to frequency of machine foundation, although it is safe from resonance. The vertical and horizontal amplitude is safe because smaller than permission amplitude. In the second condition, the effect of the embedded block foundation is checked, the smaller natural frequency value 13,305 Hz is safe against resonance. The amplitude value obtained is also smaller. In the last condition analyzed the embedded block foundation without using piles to determine the effect of piles during the machine foundation system. Although the results of the analysis obtained a smaller natural frequency value of about 10,628 Hz but seen from its value of vertical and horizontal amplitude, the foundation without pile is not safe. In general, it can be concluded that the existing foundation is safe from dynamic load, but it would be better if the foundation of the block is embedded on the ground. The use of piles can reduce the amplitude value of machine foundation.Keywords : machine foundation, dynamic analysis, generator setsABSTRAKFondasi mesin generator sets pada Power House Building Project Lube Oil Blending Plant berlokasi di Kawasan Industrial Estate Cilegon (KIEC), Banten. Analisis fondasi mesin dilakukan dengan tiga kondisi untuk mengecek keamanan fondasi terhadap beban dinamik. Kondisi pertama adalah kondisi eksisting dimana fondasi blok tidak tertanam dalam tanah. Dari hasil analisis kondisi ini didapatkan nilai frekuensi natural 20,077 Hz. Frekuensi natural tanah ini mendekati nilai frekuensi mesin, walaupun masih saman dari resonansi. Nilai amplitudo vertikal dan amplitudo horizontal aman karena lebih kecil dari nilai amplitudo izin. Pada kondisi kedua dicek pengaruh fondasi blok tertanam dan dihasilkan nilai frekuensi natural yang lebih kecil yakni 13,305 Hz dan aman terhadap resonansi. Nilai amplitudo yang didapat juga lebih kecil. Pada kondisi terakhir dianalisis fondasi blok tertanam tanpa menggunakan pile untuk mengetahui pengaruh pile pada sistem fondasi mesin. Walaupun dari hasil analisis didapat nilai frekuensi natural yang lebih kecil yakni sekitar 10,628 Hz, namun dilihat dari nilai amplitudo vertikal dan amplitudo horizontalnya, fondasi tanpa pile ini tidak aman. Secara umum dapat disimpulkan bahwa fondasi eksistingaman terhadap gaya dinamik, namun akan lebih baik jika fondasi blok tertanam dalam tanah. Penggunaan pile mampu memperkecil nilai amplitudo pada fondasi mesin.Kata kunci : Fondasi mesin, analisis dinamik, generator sets
PEMANFAATAN SISTEM INFORMASI GEOGRAFIS (SIG) UNTUK PEMETAAN RUMAH PENDUDUK DI RW 01/RT 02 KELURAHAN SEKARJAYA KECAMATAN BATURAJA TIMUR
Authors: Lucyana Lucyana
Published: June 2023

Lack of data that contains information on people's houses also acts as an obstacle to the completion of the mapping of resident houses that is not spared from the importance of information in supporting all activities contained therein, the information generated must be relevant so that decisions made based on the information are right on target, the form of presentation according to is a factor that influences the quality of the information conveyed. So far the presentation of data and information in Kelurahan generally uses diagrams or graphs depending on what data you want to present.In utilizing the geographical information system for mapping population houses, the numbering and names of residents' houses have been adjusted. On this map, the addresses of residents of RW 01 / RT 02 KelurahanKelurahanSekar Jaya have been ordered. Based on the results of data processing, it was concluded that the Desktop-GIS that was built was able to display the mapping information of residents' houses in RT 02 / RW 01, Sekarjaya Village, East Baturaja District.Keyword : Geographic Information System, Sekarjaya Urban VillageÂ
Pengaruh Penambahan Zat Aditif Sika Viscocrete Terhadap Kuat Tekan Mutu Beton K-300 Umur 14 Hari
Authors: Riwayati R.R. Susi , Habibi Roby
Published: June 2023

Research on concrete which is ongoing at this time aims to obtain good quality and high quality concrete, to get it it needs to be mixed with additives (Admixture) as an added material for concrete mixtures. Sika Viscocrete is an added material that can help concrete improve its performance at a faster time and has the dual function of reducing the amount of water mixing required to produce concrete with a certain consistency and speed up the bonding of the concrete. The purpose of this study was to determine the effect of adding the additive ViscoCrete sika to the compressive strength of the K-300 concrete. The sample used was 15cm x 15cm x 15cm cuboid at the age of 14 days. With variations, namely Normal Concrete and Normal Concrete + Sika Viscocrete 1%, 2%, 3% with 9 samples in each variation. The results showed that the value of the compressive strength of concrete with the addition of 2% Sika Viscocrete-3115N aged 14 days to normal concrete was 315, 07 Kg / Cm2. While the addition of 3% Sika Viscocrete-3115N obtained the optimum value at the age of 14 days of 358.13 Kg / Cm2.Â Kata Kunci : K-300 Concrete, Additives, Viscocrete Sika and Concrete Presure
Analisa Kuantitas Dan Kualitas Air Sumur Bor Di Desa Tihang Kecamatan Lengkiti Kabupaten Ogan Komering Ulu
Authors: Azwar Azwar
Published: June 2023

This research discusses the quantity and quality of clean water that has been used by the community in Tihang Village, Lengkiti District, Ogan Komering Ulu Regency. In the daily process, the local community uses a lot of drilled well water to facilitate their daily activities. There are 7 Drilled Well points in Tihang Village, but only 3 Drilled Well points are active. Tihang Village has a population of 1663 people (2016 statistical data center). Therefore, Tihang Village is included in the rural category with water consumption of 50 liters / person / day. The borehole water distribution system is carried out by flowing the air from the well using the intake pump to the booster, the distribution pump discharge is determined based on fluctuations in water use in one day schedule. It turns out that after conducting a simple water test that has reached the community, the pH of the water passes into the requirements stipulated under Permenkes No. 32 of 2017 concerning Environmental Health Quality Standards and Water Health Requirements. The quality of water from these three sources is quite good because the water test results simply show that the water is odorless. And from the results of laboratory test analysis, both Physical and Chemical, the clarity is sufficient because the differences are not too far away. The highest pH was 7.40 in Hamlet V, while the pH of the three hamlets was only 1% different. However, the results of water from Dusun III, IV and V are good enough to be used as raw material for drinking water because the pH is neutral and non-toxic. After a simple test of water pH in Tihang Village, namely vilage III, IV and V passed the applicable requirements Keywords: Quantity, Quality, Drilled Well Water.
Support for “doing your own research” is associated with COVID-19 misperceptions and scientific mistrust
Authors: Chinn Sedona , Hasell Ariel
Published: June 2023

Amid concerns about misinformation online and bias in news, there are increasing calls on social media to “do your own research.” In an abundant information environment, critical media consumption and information validation are desirable. However, using panel survey data, we find that positive perceptions toward “doing your own research” are associated with holding more misperceptions about COVID-19 and less trust in science over time. Support for “doing your own research” may be an expression of anti-expert attitudes rather than reflecting beliefs about the importance of cautious information consumption.
Assessment of the Effects of Indoor and Outdoor Laboratory Experiences on Secondary School Students Achievement and Retention in Ecology - A Case Study of Jalingo Education Zone, Taraba State, Nigeria
Authors: - Jeremiah Aondolumun Gor , - Barkindo Jaji , - Amos Cletus Ngezack
Published: June 2023

This study was carried out to assess the effects of indoor and outdoor laboratory experiences on achievement and retention in ecology among secondary school students in Ardo-Kola Local Government Area of Jalingo Education Zone in Taraba State, Nigeria. A quasi-experimental research design, which utilized pretest, posttest, and post-posttest, was adopted. The population of the study consisted of 849 SSII students from 11 public schools in the Ardo-Kola Local Government Area of the State. One out of 11 schools were randomly selected as a sample, and two groups were used as the experimental and control groups. The experimental group was taught using an outdoor teaching strategy, while the control group was taught using an indoor strategy. Two intact classes were selected to form a sample of 60 students. The instrument used for the study was the Ecology Achievement Test (EAT). Research questions were answered using means and standard deviation, and the hypotheses were tested at the 0.05 level of significance. The t-test statistical tool was used in analyzing the collected data. Major findings of the study revealed that the ecology concept favored outdoor teaching strategies. The study further confirmed that outdoor teaching strategies enhanced student achievement and retention, and they are gender-friendly. From the results of the analysis discussed, recommendations were made, one of which was that there is a need for teaching and learning strategies involving student participation, such as outdoor teaching strategies, which enhance student achievement and retention.
A Systematic Overview of Monkeypox: from Origin to Treatment
Authors: Ali Sheikh Rezzak , Alom Shahnaz , Kumari Shuby , Ali Farak , Afruja Jakia , Singh Gireesh Kumar , Bhat Hans Raj , Ghosh Surajit Kumar , Shakya Anshul
Published: June 2023

The objective of this paper is to analyze existing data related to the monkeypox virus, its genomic characterization, transmission, prevention, and treatment available considering the current scenario of the monkeypox outbreak globally and posing a threat to public health. The literature search was performed in databases including PubMed, Science Direct, and Google Scholar up to September 2022. The monkeypox virus is a re-emerging threat to international travel and public health that poses fresh difficulties. Due to these effects, the World Health Organization (WHO) declared a human monkeypox public health emergency of international concern on July 23, 2022. The illness can spread from animals to humans, from humans to animals, and possibly from humans to humans. However, humanto-human transmission of the monkeypox virus is much more uncommon than animal-to-human transmission. During the outbreak of monkeypox in 2022, 5 continents have shown test positive in less than three months. Most of the cases were in men who have sex with men. There are several methods for diagnosis like genetic method, phenotypic method, immunological method, and electron microscopy. To prevent the spreading of the monkeypox virus, numerous precautions can be taken such as avoiding direct or indirect contact with an infected person, vaccination, or specific medication.
Effect of Oxytocin Massage on Uterine Involution in Postpartum Mothers at Rengasdengklok Health Center, Karawang Regency
Authors: Armiyanti  , Nurjanah
Published: June 2023

Background. After giving birth, the uterus will normally experience involution, which is the process of shrinking and returning to its pre-pregnancy size and shape. The process of involution involves uterine contractions, decreased blood flow, and the expulsion of unnecessary tissue. However, in case of failed uterine involution, the uterus cannot return to its normal size and shape in a timely manner, and leads to bleeding. This study aimed to determine the effect of oxytocin massage on uterine involution of postpartum mothers at the Rengasdengklok Health Center, Karawang Regency, Indonesia.

Methods. This study was an experimental study, where as many as 30 research subjects participated in this study. Data analysis was performed bivariate to assess the effect of oxytocin massage on uterine involution.

Results. The results of the study showed that the control group had a slower process of uterine involution compared to the intervention group, p-value 0.003 (p<0.05).

Conclusion. It can be concluded that there is an influence between oxytocin massage and the uterine involution process.
Adaptive Fuzzy Control of a Four-Wheeled Mobile Robot Subject to Wheel Slip
Authors: Hendzel Zenon , Trojnacki Maciej
Published: June 2023

In this paper, the adaptive fuzzy tracking control of a four-wheeled mobile robot subject to wheels slip is considered. We proposed an adaptive scheme in that fuzzy logic approximators are used to approximate the unknown system functions in designing the adaptive tracking control of a mobile robot. Fuzzy systems are expressed as a series expansion of basis functions, to adaptively compensate for the mobile robot nonlinearities. The proposed control system works online, parameter adaptation is realized in every discrete step of the control process, and a preliminary learning phase of fuzzy system parameters is not required. The stability of the algorithm is established in the Lyapunov sense, with tracking errors converging to a neighborhood of zero. Simulation results illustrate the effectiveness of the approach.
Budkavlen 2014
Authors: Åström Anna-Maria
Published: June 2023

Budkavlen 2014 ägnas frågeställningar om kulturarvet ur några speciella synvinklar. Dels är det fråga om hur kulturarvet överhuvudbörjar nyttjas som begrepp i Svenskfinland, dels hur vissa materiella produkter såsom t.ex. kvinnlig hemslöjd börjar betraktas som ett kulturarv inte bara värt att bevaras utan även vidareutvecklas. Den första vågen att nyttja kulturarvet – också med ekonomiska förtecken – uppstod redan på 1920-talet. I vår tid finns otaliga exempel på hur kulturarvet, det lokala arvet och vissa produkter nyttjas med denna stämpel. Det kan som i en av artiklarna gälla t.ex. bagerier och chokladbutiker. Då är det fråga om att vädja till konsumenternas känsla för det förgångna, det ”äkta” och småskaliga. Det faktum att kulturarvet hos deras bärare ofta väcker känslor av stolthet kan undersökas när det gäller det nationella kulturarvet och det lokala arvet.
Från plastbåt till barkskepp
Authors: Westerlund Kasper
Published: June 2023

Bibliografi av maritimetnologen, fil.lic. Kim Montin (1948–2004).
Studi Komparasi Teori Pembelajaran â€˜Athiyah Al-Abrasyi dan Pendidikan Karakter Serta Relevansinya dengan Pendidikan Islam
Authors: Yudhiyantoro Bagas Ilham
Published: June 2023

AbstractLearning is basically a process, an organizing process, the process of regulating the environment around the student's environment, so that it can encourage and motivate students so that there is a willingness to carry out the learning process. Learning can also be said as a step in providing assistance or guidance to students in the learning process. To form intelligent people, schools not only develop mastery in the academic field, but also in accordance with national education goals. The use of media by children in the educational process must also be supervised by parents and educators, if the child is not supervised by parents or educators, the child will lose control over himself, including the child's religious character. Character education has experienced a decline in the quality of society, many incidents have happened to school children such as pornography, violence, brawls and others. To prevent this, character education must be implemented and implemented in formal education at all levels of education in Indonesia. The purpose of this study was to compare the learning theory of 'Athiyah Al-Abrasyi and Character Education and its relevance to Islamic education. This study uses library research methods (library research). Sources of data come from books and related journals. The results of this study state that the learning concept offered by 'Athiyah Al-Abrasyi is more directed to moral education based on spiritual/religious values, the learning theory of 'Athiyah Al-Abrasyi has shortcomings which are considered as problems in learning. education World. while the lack of character education theory is the absence of a special curriculum in the implementation of character education and the relevance of Islamic education to the learning theory of 'Athiyah Al-Abrasyi and character education is found in the learning method.Keywords: Learning, 'Athiyah Al-Abrasyi, Character Education, Islamic Education
Correlation between Family Incomes and Students English Achievement at MTs Nurul Hidayah Malang
Authors: Abdillah Ainul Yaqin , Sholah Hanif Maulaniam
Published: June 2023

AbstractThe purpose of this research was to find a relationship between family income and studentâ€™s English achievement at MTs Nurul Hidayah Bantur. In this study, the author uses quantitative analysis techniques in which he performs a series of tests including: validity test, reliability test, descriptive statistic test, normality test, linearity test, chi square test to test hypotheses, and coefficient of determination test to find out how much influence between variables tested.The results showed that there were 41 respondents in this study, of which all came from class VIIB and VIIIB, the instrument validity test showed that of the 14 instruments tested were declared valid because all of them had a sig 2 tailed value below 0.05. The reliability test is at .924 with the meaning that the instrument that the author uses is in reliable condition, in the above test the author uses a shadow sample of 20 children. The normality test got a 2-tailed sig value at .200, with a meaning of .200 < 0.05 then it was stated that the data distribution was normally distributed. Linearity test gave a sig deviation from linearity value at .186 with a meaning of .186 > 0.05 with the meaning that the independent variable and the dependent variable has a linear relationship. Chi square test gets a value of .000 with the meaning that .000 < 0.05 then H1 is accepted and H0 is rejected, there is an influence between family incomes and student's English achievement. This test is also supported by the results of the coefficient of determination test which is at number .542 with the meaning that the independent variable affects the dependent variable by 54.2%.Keywords: Correlation, Family Incomes, and Studentâ€™s English Achievement
Konsep dan Karakteristik Wali Allah dalam Surat Yunus Ayat 62
Authors: Fery Muhammad
Published: June 2023

This study aims to examine and analyze Waliyullah in the holy book of the Qurâ€™an, Surat Yunus verse 62. This research started with the erroneous understanding of the community towards the concept of Waliyullah, the community assumed what they got, but all the allegations that he received as the basis were very distorted by explanation of the Qurâ€™an so that researchers are interested in analyzing the concept and characteristics of Waliyullah in Surat Yunus verse 62 and how to get guardianship in the perspective of the Qurâ€™an. The path and the outline rules in this study have the aim of finding a truth about the concepts and characteristics of Waliyullah which are contained in Surat Yunus verse 62. This study is of the type of literature (library research) and this study uses a descriptive and thematic analysis method to analyze. Then the inductive method is used by the researcher in drawing a conclusion that has been generated from the analysis. The results of this study are: first, Waliyullah, are people who do not have anxiety or sadness within themselves. Secondly, Waliyullah who always has faith and belief in the One and Only God and his Prophet, he always does what Allah commands and stays away from what is forbidden, gets good news in this world and the hereafter. Third, those who leave warok worldly affairs, towards something that has no benefit to them, are kind and not angry towards believers, then are harsh towards the Quraysh infidels.
Keywords: concept, Waliyullah, Surat Yunus Verse 62
Caracterización física y nutricional de harina del tubérculo de “Malanga” Colocasia esculenta L. Schott) de Actopan, Veracruz, México
Authors: Madrigal-Ambriz Laura Virginia , Hernández-Madrigal Julia Verónica , Carranco- Jáuregui María Elena , Calvo-Carrillo María de la Concepción , Casas-Rosado Rosa de Guadalupe
Published: June 2023

Colocasia esculenta (L.) Schott, conocida comúnmente como taro o malanga se cultiva en los trópicos húmedos en varios países de África, América y Asia y su tubérculo es un alimento esencial para humanos y animales. El objetivo de este estudio fue caracterizar física y nutricionalmente la harina del tubérculo de malanga cultivada en Actopan, Edo. De Veracruz, México. Se llevaron a cabo análisis químico proximal, aminoácidos, fracciones de fibra, minerales, actividad de agua, color, factores antinutricionales y contenido de fenoles totales. Los resultados indican un contenido de humedad de 6,87 g/100 g, proteína cruda de 5,93 g/100 g, extracto etéreo 1,25 g/100 g, fibra dietaria 12,08 g/100g, cenizas 3,47 g/100 g y extracto libre de nitrógeno 77,27 g/100g. El contenido de fenoles totales fue de 113,57±14 expresado como miligramos de equivalente de ácido gálico (mg EAG/100g). La harina de malanga presentó un alto contenido de K (1743 mg/100 g) y bajo en Na (9,25 mg/100 g). Se concluye que a pesar de no ser una fuente importante de proteína el perfil de aminoácidos esenciales supera los valores de FAO, en relación a la fibra dietética total podría ser un ingrediente en formulaciones alimenticias que además aportaría K, Ca y Mg. De acuerdo a las fracciones de fibra la harina es una alternativa para la elaboración de alimentos balanceados. El contenido de fenoles totales abre la posibilidad de que se complemente con la identificación de su actividad antioxidante.
Warum das nächste iPhone wieder nicht aus Deutschland kommt: Der Zusammenhang zwischen Entwicklungsmethodik und radikalen Produktinnovationen – Ein Vergleich zwischen Stanford und Deutschland/Why the next iPhone won‘t come from Germany again: The connection between design methodology and radical product innovations – A comparison between Stanford und Germany
Authors: Koppenhagen Frank , Wecht Christoph H.
Published: June 2023

Inhalt In diesem Beitrag wird der Zusammenhang zwischen der Entwicklungsmethodik und der Generierung radikaler Produktinnovationen untersucht. Es zeigt sich, dass die an der Stanford Universität entwickelte „ME310“-Entwicklungsmethodik im Gegensatz zur VDI 2221 eine Koevolution von Problem- und Lösungsraum vorsieht und damit die Entwicklung eines grundlegend neuen Problemverständnisses unterstützt, aus dem radikale Innovationen hervorgehen können. Die Autoren leiten daraus Ansätze für die Weiterentwicklung der Entwicklungsmethodik und das Curriculum des Maschinenbaustudiums in Deutschland ab.
Predicting Deflections in Beams using Machine Learning Algorithms
Authors: Raghu Vedhanth , Thanigaiarasu S
Published: June 2023

Prediction of deflections in structures is imperative for safety and stability. Classical approach and numerical solutions are currently being employed to predict the deflections of beams. However, the results from these approaches varies when compared to tests. But testing is time consuming and expensive. During the initial design stages, designers would like to quickly perform various design iterations. In order to get a quick and accurate prediction, Machine Learning models are used. In this study, regression algorithms like linear, Lasso and Ridge are used to predict the deflections in three different beams: cantilever, clamped-clamped and overhang. The database for training the algorithm is generated using the principle of superposition of forces. Around 100 datasets were generated for each type of beams in excel. Python Scikit Learn library is used to train and test the regression algorithm. The root mean square error (RMSE) for the three types of beams is nearly zero. Hence, the linear regression model resulted in high accuracy predictions. This study proposed an effective model that is cheap, accurate and efficient, to help designers predict deflections at an early stage of the design.