scholarly journals Why Is the Attic Ventilation Disappearing from the Current Urban Houses in the Humid Tropics?

2019 ◽  
Author(s):  
Jefrey I Kindangen ◽  
Octavianus H A Rogi ◽  
Verry Lahamendu
Keyword(s):  
Energy Savings ◽  
Humid Tropics ◽  
Selling Price ◽  
Traditional Architecture ◽  
North Sulawesi ◽  
Comprehensive Knowledge ◽  
Metal Aluminum ◽  
A Cell ◽  
Almost All ◽  
Roof Vents

The construction of a townhouse built today no longer has roof vents, compared to colonial buildings as well as traditional architecture scattered in humid tropics. In Indonesia, many buildings are made with a zinc roof, even in North Sulawesi province 92 percent of zinc roofed buildings or metal aluminum. This article has two purposes, the first is to assess the benefits of attic ventilation, especially for zinc roofed buildings and the second is to find out why the ventilation loft is no longer used to present buildings. Research by building two same test cells where one cell has roof vents, and the other cell does not. The test cell with ventilated roofs has the advantage that the interior temperatures are lower on average by 1.2 ∘C than those in a cell without ventilation. Almost all buildings today have a modern and minimalist style where the shape and pattern are delicate and do not allow for roof ventilation; such structures cannot form adequate attic spaces. Based on observation and evaluation, this is the leading cause of the disappearing of attic ventilation. Another thing was caused by efforts to reduce the selling price of a house with consideration of people’s purchasing power. Ignorance from building owners and developers on the benefits of attic ventilation to reduce room temperature and lighting is one of the factors found in this study; even this problem is made worse by architects who often ignore these benefits in their designs. Comprehensive knowledge is needed for the general public and also for architects for the use of roof ventilation which in turn is an effort to achieve thermal comfort and energy savings in the domestic sector

PENERAPAN ALGORITMA K-MEANS UNTUK PENGELOMPOKAN DAERAH RAWAN BENCANA DI INDONESIA

2019 ◽  
Vol 1 (2) ◽  
pp. 1-10
Author(s):  
Amril Mutoi Siregar
Keyword(s):  
Natural Disasters ◽  
Accurate Data ◽  
Disaster Victims ◽  
Central Java ◽  
North Sulawesi ◽  
Natural Beauty ◽  
Or Groups ◽  
Disaster Data ◽  
The Government ◽  
Almost All

Indonesia is a country located in the equator, which has beautiful natural. It has a mountainous constellation, beaches and wider oceans than land, so that Indonesia has extraordinary natural beauty assets compared to other countries. Behind the beauty of natural it turns out that it has many potential natural disasters in almost all provinces in Indonesia, in the form of landslides, earthquakes, tsunamis, Mount Meletus and others. The problem is that the government must have accurate data to deal with disasters throughout the province, where disaster data can be in categories or groups of regions into very vulnerable, medium, and low disaster areas. It is often found when a disaster occurs, many found that the distribution of long-term assistance because the stock for disaster-prone areas is not well available. In the study, it will be proposed to group disaster-prone areas throughout the province in Indonesia using the k-means algorithm. The expected results can group all regions that are very prone to disasters. Thus, the results can be Province West java, central java very vulnerable categories, provinces Aceh, North Sumatera, West Sumatera, east Java and North Sulawesi in the medium category, provinces Bengkulu, Lampung, Riau Island, Babel, DIY, Bali, West Kalimantan, North Kalimantan, Central Sulawesi, West Sulawesi, Maluku, North Maluku, Papua, west Papua including of rare categories. With the results obtained in this study, the government can map disaster-prone areas as well as prepare emergency response assistance quickly. In order to reduce the death toll and it is important to improve the services of disaster victims. With accurate data can provide prompt and appropriate assistance for victims of natural disasters.

ACOUSTIC PANEL CHICKEN FEATHER WASTE ENVIRONMENTALLY FRIENDLY

2020 ◽  
Author(s):  
Ansarullah ◽  
Ramli Rahim ◽  
Baharuddin Hamzah ◽  
Asniawaty Kusno ◽  
Muhammad Tayeb
Keyword(s):  
Animal Feed ◽  
Environmentally Friendly ◽  
Selling Price ◽  
Chicken Feather ◽  
Chicken Feathers ◽  
The Road ◽  
Feather Waste ◽  
Chicken Feather Waste ◽  
Almost All ◽  
The Impact

Chicken feathers are the result of waste from slaughterhouses and billions ofkilograms of waste produced by various kinds of poultry processing. This hal is a veryserious problem for the environment because it causes the impact of pollution. Hasmany utilization of chicken feather waste such as making komocen, accessories,upholstery materials, making brackets to the manufacture of animal feed but from theresults of this activity cannot reduce the production of chicken feathers that hiscontinuously increase every year. This is due to the fact that the selling price of chickenmeat has been reached by consumers with middle to upper economic levels. This caneasily be a chicken menu in almost all restaurants and restaurants to the food stalls onthe side of the road. An alternative way of utilizing chicken feathers is to makecomposite materials in the form of panels. Recent studies have shown that the pvacmaterial can be utilized as a mixing and adhesive material with mashed or groundfeathered composites to form a panel that can later be used as an acoustic material.The test results show that the absorption of chicken feathers and pvac glue into panelscan absorb sound well with an absorption coefficient of 0.59, light. This result is veryeconomical so it is worth to be recommended as an acoustic material. Apart from theresults of research methods carried out is one of the environmentally friendly activitiesin particular the handling of waste problems

scholarly journals The AWA1 Gene Is Required for the Foam-Forming Phenotype and Cell Surface Hydrophobicity of Sake Yeast

2002 ◽  
Vol 68 (4) ◽  
pp. 2018-2025 ◽  
Author(s):  
Hitoshi Shimoi ◽  
Kazutoshi Sakamoto ◽  
Masaki Okuda ◽  
Ratchanee Atthi ◽  
Kazuhiro Iwashita ◽  
...  
Keyword(s):  
Cell Wall ◽  
Cell Surface ◽  
Repetitive Sequences ◽  
Alcoholic Beverage ◽  
Cell Surface Hydrophobicity ◽  
Surface Hydrophobicity ◽  
A Cell ◽  
Characteristic Sequences ◽  
Foam Forming ◽  
Almost All

ABSTRACT Sake, a traditional alcoholic beverage in Japan, is brewed with sake yeasts, which are classified as Saccharomyces cerevisiae. Almost all sake yeasts form a thick foam layer on sake mash during the fermentation process because of their cell surface hydrophobicity, which increases the cells' affinity for bubbles. To reduce the amount of foam, nonfoaming mutants were bred from foaming sake yeasts. Nonfoaming mutants have hydrophilic cell surfaces and no affinity for bubbles. We have cloned a gene from a foam-forming sake yeast that confers foaming ability to a nonfoaming mutant. This gene was named AWA1 and structures of the gene and its product were analyzed. The N- and C-terminal regions of Awa1p have the characteristic sequences of a glycosylphosphatidylinositol anchor protein. The entire protein is rich in serine and threonine residues and has a lot of repetitive sequences. These results suggest that Awa1p is localized in the cell wall. This was confirmed by immunofluorescence microscopy and Western blotting analysis using hemagglutinin-tagged Awa1p. Moreover, an awa1 disruptant of sake yeast was hydrophilic and showed a nonfoaming phenotype in sake mash. We conclude that Awa1p is a cell wall protein and is required for the foam-forming phenotype and the cell surface hydrophobicity of sake yeast.

Three-Dimensional Microfabrication System for Biodegradable Microdevices With High-Resolution and Bio-Applicability

2005 ◽  
Author(s):  
Akira Yamada ◽  
Fuminori Niikura ◽  
Koji Ikuta
Keyword(s):  
Tensile Strength ◽  
Biodegradable Polymers ◽  
Conventional Method ◽  
Three Dimensional ◽  
Single Layer ◽  
Batch Process ◽  
Potential Applications ◽  
A Cell ◽  
The One ◽  
Almost All

Biodegradable polymers are employed in medicine and its further application is expected with eagerness. But the lack of an appropriate processing method retards the progress. To overcome this problem, we have developped a novel three-dimensional microfabrication system. The system design allows us the processing of the free three-dimensional micro-level forms by stacking up melted polymers from the nozzle. Different from the conventional method, we adopted a batch process to supply materials in order to eliminate the prior process that required toxic solvents. In addition, it is possible to handle almost all biodegradable thermoplastic resins by adopting this system. A single layer from the piled-up layers of extruded lines was observed to evaluate the resolution. The lateral and depth resolutions attained are 40 μm and 45 μm, respectively. Biodegradable polymers enable three-dimensional microstructures such as micro-pipes, micro-bends, and micro-coil springs to be manufactured in less than 15 min. The biocompatibility of the newly fabricated structure was evaluated using a cell line (PC12). For this purpose, a small vessel, with a transparent base, was fabricated using PLA and cells were cultivated in it. The results were then compared with the results obtained using the standard method. The mechanical strength of our microstructures was evaluated using a tensile strength test. The tensile strength of the microstructure was lower than the one obtained from the conventional method, but has enough strength for fabrication of medical devices. Our system renders it possible to produce toxic-free, as well as transparent and leakage-free devices. Our system is expected to have potential applications in optimum design and fabrication of implantable devices, especially in tissue engineering.

scholarly journals Investigation of the Accompaniment of Calcium During Active Calcium Transport from Human Erythrocyte Ghosts

1974 ◽  
Vol 63 (5) ◽  
pp. 590-600 ◽  
Author(s):  
Erik J. Olson ◽  
Ralph J. Cazort
Keyword(s):  
Cell Membrane ◽  
Calcium Transport ◽  
Inorganic Phosphate ◽  
Adenine Nucleotide ◽  
Erythrocyte Ghosts ◽  
High Dilutions ◽  
A Cell ◽  
Active Calcium ◽  
Phosphate Analysis ◽  
Almost All

To determine whether a cell metabolite was involved in active calcium transport, the cell contents of human erythrocytes were subjected to high dilutions and the resultant ghosts were checked for their ability to actively transport calcium. It was found that the diluted erythrocyte ghosts did retain their capacity to actively transport calcium and that the characteristics of this transport process appeared to be unaltered by the high dilutions. Calcium analysis of the cell membrane and cell supernatant indicated that almost all of the calcium was lost from the cell solution rather than the cell membrane as active calcium transport proceeded. Therefore it appeared that calcium was able to cross the cell membrane without the aid of a cell metabolite. Investigations with layered erythrocytes indicated that the active transport of calcium was not assisted by centrifugation. Neither inorganic phosphate, pyrophosphate, nor an adenine nucleotide appeared to accompany calcium across the membrane as indicated by total phosphate and inorganic phosphate analysis and 260-nm readings of the deproteinized supernatant.

scholarly journals Transdifferentiation of Mucus Cells into Ciliated Cells in the Quail Oviducte (Coturnix Coturnix Japonica) II- Estroprogestative Treatment, Follow-up of Progestogenic Treatment

2020 ◽  
Vol 3 (1) ◽  
Keyword(s):  
Estradiol Benzoate ◽  
Coturnix Japonica ◽  
Secretory Cells ◽  
Ciliated Cells ◽  
Thin Sections ◽  
Coturnix Coturnix ◽  
A Cell ◽  
Mucus Cells ◽  
Almost All

Transdifferentiation is the process by which a cell that is not stem cell is differentiated into another cellular type without a dedifferentiation step. Transdifferentiation of secretory cells into ciliated cells was studied in ovariectomized quail oviduct after stimulation with Estroprogestatif and progesterone treatments. Cytological technique was applied. Semi thin sections realized in the blocks were observed and photographed by the Ultraphot II ZEISS. Estroprogestatif treatment (estradiol benzoate: 20ug +progesterone: 1mg/day) during six days induces differentiation of almost all epithelial cells into secretory cells. When this treatment is followed by progesterone alone during six days, about 50% of secretory cells transdifferentiation into ciliated cells. Following these treatments, neither DNA replication nor mitosis seems necessary for transdifferentiation of secretory cells into ciliated cells in quail oviduct.

scholarly journals FAKTOR-FAKTOR YANG MEMPENGARUHI IMPOR SAYURAN DI KABUPATEN KAIMANA PROVINSI PAPUA BARAT

Agric ◽  
2016 ◽  
Vol 26 (1) ◽  
pp. 7
Author(s):  
Obadja Andris ◽  
Dwidjono H Darwanto ◽  
Sri Widodo
Keyword(s):  
Human Body ◽  
National Level ◽  
Family Members ◽  
Disposable Income ◽  
Decisive Factor ◽  
Selling Price ◽  
North Sulawesi ◽  
West Papua ◽  
Papua Barat

<p>Vegetables Vegetables are very important as the counterweight of nutrition and vitamins for human body. Until now, Indonesia is still importing vegetables from other countries. The same circumstance also occurred in West Papua province. In Kaimana district, the supply of vegetables was imported from North Sulawesi. Meanwhile, the import process at the national level took place through a formal import mechanism. This study seeks to determine what factors are thought to influence the volume of vegetables import in Kaimana district. By using the OLS method, it was found that the purchasing price of the imported vegetables is a decisive factor influencing the import process. Vegetables selling price, age of importing traders, number of traders’ family members as well as consumers’ disposable income are not significant to prompt import.</p>

scholarly journals ANALISIS STRUKTUR MUSIKOLOGIS ARANSEMEN LAGU O INA NI KEKE UNTUK ORKESTRA

2021 ◽  
Vol 5 (2) ◽  
pp. 249
Author(s):  
Joko Suprayitno ◽  
Ayub Prasetiyo
Keyword(s):  
Qualitative Research ◽  
Music Composition ◽  
Folk Songs ◽  
Folk Song ◽  
Musical Structure ◽  
North Sulawesi ◽  
Analysis Process ◽  
Almost All ◽  
Musical Elements ◽  
Written Sources

AbstrakIndonesia memiliki kekayaan lagu rakyat yang beragam sesuai keberadaan suku-suku yang tersebar dari Sabang sampai Merauke. Warisan budaya yang tak ternilai ini tidak hanya perlu dilestarikan, tapi juga diberi langkah strategis agar dapat berkembang dan dikenal lebih jauh. Dalam konteks ini, O Ina Ni Keke, sebuah lagu rakyat dari Sulawesi Utara, telah menjadi repertoar standar orkestra yang mendunia. Penelitian ini bertujuan mengetahui bagaimana komposisi struktur musikal yang diciptakan oleh Joko suprayitno untuk lagu sederhana khas lagu rakyat seperti O Ina Ni Keke mengubah lagu tersebut menjadi kelindan melodi, harmoni, tekstur, dan struktur elemen musikal lainnya dan pada akhirnya menjadi sebuah karya yang pernah dimainkan oleh Shanghai Philharmonic Orchestra. Penelitian ini menggunakan metode penelitian kualitatif dengan paparan deskriptif. Proses analisis menggunakan analisis teoretis musikologis atas bentukan struktur elemen musikal dalam aransemen lagu O Ina Ni Keke. Pendalaman proses analisis akan ditunjang oleh sumber-sumber tertulis seperti buku-buku komposisi musik dan juga notasi atau score hasil aransemen sebagai data pokok dalam proses analisis. Penelitian ini menemukan penggunaan variasi melodi kontrapungtal, penempatan melodi pokok di hampir semua instrumen musik yang memunculkan karakter bunyi yang berbeda-beda, dan penggunaan teknik pedal point.AbstractIndonesia has a wealth of folk songs that vary according to the existence of tribes that spread from Sabang to Merauke. This valueless cultural heritage should not only be preserved but also need strategic steps to strive for it to develop and be known further. From a folk song from North Sulawesi to a global standard orchestra repertoire. This study aims to find out how to composed the musical structure of simple songs typical of folk songs such as the song O Ina Ni Keke by Joko Suprayitno into a combination of melodies, harmonies, textures and other musical elements into a masterpiece that was once played by the Shanghai Philharmonic Orchestra during a concert at the Shanghai Philharmonic Orchestra. Simfonia Hall Jakarta in the framework of the Fundraising Concert for Palu & Donggala Tsunami Victims. This research uses qualitative research with descriptive exposure. The analysis process uses musicological theoretical analysis of the formation of musical elements in the arrangement of the song O Ina Ni Keke. The deepening of the analysis process will be supported by written sources such as music composition books and of course the notation or score of the arrangement as the main data in the analysis process. The results of the study found that the use of contrapuntal melody variations, the placement of the main melody in almost all instruments gave rise to different characters, and the use of the pedal point technique

scholarly journals PELUANG USAHA KECIL KULINER RUMAHAN MASYARAKAT PERUM KHARISMA KOKA DITENGAH PANDEMI COVID 19

2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Erric Kondoy ◽  
Rahmania Rahman
Keyword(s):  
Residential Home ◽  
Family Needs ◽  
Business Opportunity ◽  
Economic Problems ◽  
North Sulawesi ◽  
The People ◽  
Typical Food ◽  
Almost All ◽  
Staying At Home ◽  
At Home

AbstrakThe policy of staying at home due to the prevention of the spread of Covid 19 is the primary of economic problems in the poor society since they were laid off by the company where they worked in and therefore, they cannot fulfill their family needs anymore. This reality force them to find solution to fulfill their family needs in which almost all society get impact of this including the Kharisma Koka residential. It encourages the people there particularly the housewives to concern with culinary business at home by selling various foods such as typical food of North Sulawesi and even some kinds of food from outside the province. Thishome culinary is regarded as the excellent business opportunity in the Covid 19 pandemic.  Key words: Kharisma Koka residential, home industry, culinary business.

Biological Pretreatment of Lignocellulosic Material for Biopulping: A Review

2016 ◽  
Vol 23 (1) ◽  
pp. 1-12
Author(s):  
Shardesh Chaurasia ◽  
Prakashchandra Mervana ◽  
Satyapal Singh ◽  
Sanjay Naithani
Keyword(s):  
Plant Cell Wall ◽  
Energy Savings ◽  
Paper Industry ◽  
White Rot Fungi ◽  
Ligninolytic Enzyme ◽  
White Rot ◽  
Cellulose Fibres ◽  
Paper Properties ◽  
Environmental Threats ◽  
Almost All

Biopulping has the potential to improve pulp quality, paper properties and to reduce energy costs and environmental impact relative to traditional pulping approaches. The technology has focused on the white rot fungi that are known to be degrader of wood constituents. This group of fungi have complex extracellular ligninolytic enzyme systems that can selectively degrade/ alter lignin structure and allow cellulose fibres to be relatively unaffected. It colonizes either on living or dead wood and decomposes almost all plant cell wall polymers including lignin and extractives making it to be extremely potential to be used in biopulping. Biopulping reduces the chemical load in paper industry and thus partially limiting environmental threats caused by conventional pulping. It has been advised that energy savings alone could make the process economically viable. Other benefits include improved burst strength and tear indices of product and reduced pitch deposition.

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