bluuebunny/crossref_metadata_2025_split huggingface dataset:
Urgency of Chemistry Instrumentation for Students of Medical Laboratory Technology
Authors: Maharani Endang Tri wahyuni 
Published: November 2019

The background of the research is that the chemical instrumentation course reviews all instrumentation used for health laboratory examinations in accordance with the demands of a health analyst's competence. This material is basic knowledge, so students need to understand these three aspects, namely: the concept and function of chemical instrumentation, the basics of chemical instrumentation analysis, and the classification of chemical analysis.The research method is quantitative descriptive with 80 students and the main data collection tool is a questionnaire / instrument. Variables were examined from all three aspects, each aspect contain 20 questions, so that in the whole questionnaire there were 60 questions. efore the questionnaire was used to retrieve data, the validity and reliability tests had been carried out and the results were declared valid and reliable, while the data analysis technique was used descriptive analysis by comparing the calculated results with the criteria set by the researcher.The results of the study concluded: 1) the concept and function of chemical instrumentation obtained a score of 69 or 86.25% with very good criteria; 2) the basics of chemical instrumentation analysis obtained a score of 72 or 90.00% with good criteria; and 3) the classification of chemical analysis obtained a score of 73 or 91.25% with very good criteria, so the final conclusion is the perception of Health Analyst students' study programs on the urgency of chemical instrumentation material is very good.
Experimental and Numerical Investigations of Composite Concrete–Steel Plate Shear Walls Subjected to Axial Load
Authors: Abbas Jinan Laftah , Allawi Abbas A. 
Published: November 2019

This research is presented experimental and numerical investigations of composite concrete-steel plate shear walls under axial loads to predicate the effect of both concrete compressive strength and aspect ratio of the wall on the axial capacity, lateral displacement and axial shortening of the walls. The experimental program includes casting and testing two groups of walls with various aspect ratios. The first group with aspect ratio H/L=1.667 and the second group with aspect ratio H/L=2. Each group consists of three composite concrete -steel plate wall with three targets of cube compressive strength of values 39, 54.75 and 63.3 MPa. The tests result obtained that the increase in concrete compressive strength results in increasing the ultimate axial load capacity of the wall. Thus, the failure load, the corresponding lateral displacement and the axial shortening increased by increasing the compressive strength and the rate of increase in failure load of the tested walls was about (34.5% , 23.1%) as compressive strength increased from 39 to 63.3 MPa for case of composite wall with aspect ratio H/L=1.667 and H/L=2, respectively. The effect of increasing aspect ratio on the axial load capacity, lateral displacement and axial shortening of the walls was also studied in this study. Compared the main performance characteristic of the testing walls, it can be indicated that the walls with aspect ratio equal to (2) failed under lower axial loads as compared with walls with aspect ratio equal to 1.667 ratios by about (5.8, 12, 15.6 %) at compressive strength (39, 54.75, 63.3 MPa), respectively and experienced large flexural deformations. The mode of failure of all walls was characterized by buckling of steel plates as well as cracking and crushing of concrete in the most compressive zone. Nonlinear three-dimensional finite element analysis is also used to evaluate the performance of the composite wall, by using ABAQUS computer Program (version 6.13). Finite element results were compared with experimental results. The comparison shows good accuracy.
Different Growth Partitioning and Shoot Production of <i>Talinum triangulare</i> Treated with Organic and Inorganic Fertilizer
Authors: Aziz Sandra A. , Mualim Leo , Farchany Sitta Azmi 
Published: November 2019

Talinum triangulare or waterleaf is an underutilized tropical plant, mostly found as weeds, and has been used more as medicinal plant than as vegetable in Indonesia. The study of Talinum triangulare cultivation has been explored to increase the shoot production as functional vegetables. The effects of organic fertilizer applications at 0.50, 0.75, 1.00, 1.25 and 1.50 of the standard rate on waterleaf growth were tested in a Leuwikopo research station, Bogor, West Java, Indonesia. Standard rate of organic fertilizer consisted of 12.3 t..ha-1 of cow manure, 226.8 kg. .ha-1 of guano, and 5.5 t.ha-1 of rice hull ash that is equal to 100 kg urea, 60 kg SP-36 and 100 kg KCl.ha-1. Net assimilation rate (NAR) of the organic fertilizer-treated plants was lower than the inorganic fertilizer-treated with plant at two to four weeks after planting (WAP). However, the plants treated with 0.75-1.25 organic fertilizer had a higher NAR than those treated with inorganic fertilizer at four to six WAP. Plants treated with 0.75 rate of organic fertilizer had similar relative growth rate (RGR) to plants treated with the inorganic fertilizer at two to four WAP, whereas plants treated with 1.00, 1.25 and 1.50 standard rate had higher RGR than plants treated with inorganic fertilizer at 4-6 WAP. Plants treated with 1.50 organic fertilizer rate had 34.55% more marketable shoots compared to those treated with inorganic fertilizer whereas those treated with 0.50 rate of organic fertilizer had 179.54% at 6 WAP. The percentage of marketable shoots to total fresh weight of the organic fertilizer-treated plants was lower than the inorganic fertilizer-treated plants.Keywords: Talinum triangulare, leafy vegetables, organic
Are Tacca leontopetaloides (Linn.) O. Kuntze Mini-tuber Growth Affected by Media Composition and Tuber Size?
Authors: Aziz Sandra A. , Susanto Rendi 
Published: November 2019

Tacca (Tacca leontopetaloides (Linn.) O. Kuntze) is a tropical plant that is widely used for its starch in some countries as well as a medicinal plant. Tacca has advantages as it can grow on sand in tropical seashore areas and rain forests. Farmers in Madura Island Indonesia cultivated tacca by using mother tubers as propagules and harvest the daughter tubers, but no studies have been conducted on the growth of mini tubers and their cultivation. The purpose of this study was to find the best combination of planting media and the size of mini tuber for growing tacca. The experiment was set in a completely randomized block design with two factors and three replications. The planting media are sand : rice-hull charcoal : cow manure (1:1:1 v/v), soil : sand : cow manure (1:1:1 v/v), soil : rice-hull charcoal : cow manure (1:1:1 v/v), and soil : cow manure (1:1 v/v);mini-tuber weight are1-5 and 5.1-20 g. The result showed that Polynesian arrowroot grow best on sand : rice-hull charcoal : cow manure (1:1:1 v/v) and rice-hull charcoal : cow manure (1:1 v/v) media. Both propagules sizes can be used, but plants from large mini-tuber had better growth and produced larger mother and daughter tubers. Key words: mini tuber, parent tuber, Polynesian arrowroot, organic media planting, secondary tuber
Proliferation of Protocorm-Like Bodies of Dendrobium mannii and Dendrobium mirbelianum in Chitosan-containing Media In Vitro
Authors: Rahmah Syifaur , Wiendi Ni Made Armini , Suwarno Willy B. , Krisantini Krisantini 
Published: November 2019

Dendrobium mannii and Dendrobium mirbelianum were rare and endangered orchid species. In vitro micro propagation could be used to conserve and proliferate these species. The aims of this study were to determine the effects of chitosan on proliferation of the protocorm-like-bodies (PLBs) of in vitro grown Dendrobium mannii and D. mirbelianum. Chitosan has been reported as an important component to promote orchid growth in vitro. In this study chitosan was included in the in-vitro media at the concentrations of 0, 1, 2, 3, and 4 mg.L-1. The highest PLBs formation, clump diameter, and fresh weight on D. mannii were obtained from explants cultured on medium supplemented with 1 mg.L-1 chitosan. After 14 weeks of culture, fresh weight, clump diameter and average number of PLBs of D.mannii were 29.52 %, 33.00 % and 35.88% greater at chitosan (1 mg.L-1) compared to control media. D. mirbelianum treated with low chitosan concentrations (1 and 2 mg.L-1) had 65.71% more leaves than those without chitosan treatment. Chitosan, however, had an adverse effects on growth of both species at 4 mg.L-1. Medium contain 4 mg.L-1 chitosan induced PLBs proliferation of D.mannii, but inhibited PLBs proliferation of D.mirbelianum. These results suggested that chitosan had important roles in PLB proliferation and could be used for the propagation of D. mannii PLBs in vitro. Keywords: rare orchid species, in-vitro
The Use of Bokashi to Enhance Agricultural Productivity of Marginal Soils in Southeast Sulawesi, Indonesia.
Authors: Karimuna La , Rahni Nini Mila , Boer Dirvamena 
Published: November 2019

The yield of agriculture crops tends to be decreasing in many parts of world including in Indonesian farmers’ land. One of the causes of the decreased yields is the reduction of organic matter in the soil. Peanut is one of the important crops in southeast Sulawesi and is usually intercropped with maize. However, the yield of peanut and maize crops were low as they were grown in marginal lands that have low nutrient contents, low CEC, high acidity, and low organic matter. The objectives of this paper were to summarize the results of our studies on the use of bio fertilizer bokashi plus fertilizer to improve peanut yields grown in marginal soil in southeast Sulawesi, Indonesia. The study also examined the agronomical performance of several local peanut varieties which had high adaptability to the local conditions and marginal lands. The results of this study demonstrated that application of mulch and bokashi increased maize and peanut production, seed dry weight and 100-seed weight. This practice has potentials to be applied in other agricultural lands of southeast Sulawesi region with similar soil and climatic condition to increase peanut yield, and promote the sustainable agriculture production of the region.
Evaluation of Yield Components of New Sweet Corn Hybrids in Bogor, Indonesia
Authors: Aprilianti Devi Kurnia , Syukur Muhamad , Suwarno Willy Bayuardi 
Published: November 2019

The demand of sweet corn in Indonesia has been increasing; therefore breeding efforts are aimed for high yielding sweet corn varieties with superior quality. This research was aimed to evaluate the yield of five newly developed sweet corn hybrids compared to the commercial varieties. The research was conducted at the Leuwikopo experimental field of IPB, and Laboratory of Genetics and Plant Breeding, Department of Agronomy and Horticulture, IPB Darmaga campus from September to December 2015. The experiment was arranged in a completely randomized block design with three replications. Five new sweet corn hybrids, “ JM8 x JM2”, “JM8 x JM7”, “JM16 x JM8”, “JM17 x JM6” and “JM17 x JM7”, and four commercial varieties, “Bonanza”, “Master Sweet”, “Sugar 75” and “Sweet Boy”, were tested. The results showed that the new hybrids vary in plant height, days to anthesis, days to silking, ear height, ear length, sugar content, number of kernel rows, the weight of husked ear, and number of ears per plant, downy mildew infected area, and productivity. F1 of “JM8 x JM2” has longer ears than “Master Sweet” and “Sugar 75”, higher sugar content than “Sugar 75”, and higher resistance against downy mildew than “Master Sweet” and “Sweet Boy”.
Conservation Status of Lontar Palm Trees (Borassus flabellifer Linn) In Jeneponto District, South Sulawesi, Indonesia
Authors: Sirajuddin Sukamaluddin , Mulyadi Mulyadi , Dirawan Gufran D. , Amir Faizal , Pertiwi Nurlita 
Published: November 2019

This study aimed to describe the botanical description, conservation status and potentials of Sulawesi native lontar palm trees (Barassus flabellifer Linn) in Jeneponto district, South Sulawesi, Indonesia. This study was extended to include a study on the community’s attitude towards preservation of lontar palm trees involving 30 people distributed over three research sites. Overall 53% of the dry-land in Jeneponto district is grown by lontar palm trees with the tree density ranging from 50 trees per ha for trees aged between 1-5 years; 37 trees per ha for trees aged between 5-10 years; and 32 trees per ha for trees aged more than 10 years. New lontar palm trees which are being managed by the local communities are planted on 27% of the land area. Tamalatea sub- district has the largest lontar palm tree population in Jeneponto District.
The Roles of Asystasia gangetica (L.) T. Anderson and Ridge Terrace in Reducing Soil Erosion and Nutrient Losses in Oil Palm Plantation in South Lampung, Indonesia
Authors: Asbur Yenni , Yahya Sudirman , Murtilaksono Kukuh , Sudradjat Sudradjat , Sutarta Edy Sigit Sutarta Sigit 
Published: November 2019

Asystasia gangetica (L.) T. Anderson is a weed commonly found on oil palm plantations and can be used as cover crop for mature oil palm plantations due to its tolerance to shading. The use of cover crop is a soil conservation technique to support sustainable availability of soil nutrients by reducing erosion and nutrients loss, particularly during the rainy seasons. This research aims to determine the roles of A. gangetica as cover crop for measures against erosion and nutrients loss in mature oil palm plantation. This research was conducted in oil palm plantation, Unit Rejosari, PT Perkebunan Nusantara (PTPN) VII, District of Natar, South Lampung Regency from August 2014 to April 2015. The research used split block design in randomized complete block design with two factors and six replications. The main plots were ridge terrace, namely with and without ridge terrace. The sub plots were cover crops, namely with and without cover crops A. gangetica. The results show that using A. gangetica as cover crops in mature oil palm plantations effectively minimized erosion and loss of organic C, N, P, and K by 95.7%, 93.4%, 96.0%, and 90.0 %, respectively. The use of cover crop became more effective when combined with ridge terrace and reduced erosion by 94.1% and loss of organic C, N, P and K by 99.1%, 99.2%, 90.0% and 98.5%, respectively.
Controlling Poinsettia (Euphorbia pulcherrima Will.) Height with Growth Retardant Application in West Java, Indonesia
Authors: Sukma Dewi , Megawati Gina 
Published: November 2019

A study was conducted to evaluate the effects of the growth retardant Cycocel application in the growth and development of poinsettia (Euphorbia pulcherrima) ‘Freedom Red’. Cycocel was applied by spraying plant shoots at the concentrations of 1000, 1500, 2000, 2500 ppm. The increase in cycocel concentrations reduced plant height, leaf size, internodal length, plant spread and the number of flowering plants. All cycocel concentrations resulted in an ideal potted plant height. The optimum spray concentration of Cycocel used to obtain compact and uniformly flowering plants under tropical West Java environment was 1000 ppm.
Nodulation and Nitrogen Fixation of Pongamia pinnata
Authors: Calica Phoebe N. 
Published: November 2019

Nitrogen is one of the most important nutrients required by plants as a major component of all nucleic acids and proteins such as enzymes which control and enable their growth and reproduction. While much research has been conducted on the legume tree Pongamia (a candidate source for renewable biofuel), there is only a handful of studies on the mechanisms and regulation of nitrogen fixation, which is considered as one of the most important domestication traits that needs to be investigated. Steps to optimize the symbiotic nitrogen fixation of Pongamia is, firstly, to select the best rhizobial isolates as inoculum among the naturally-occurring pool of bacteria in soils across Queensland. There have been reports on rhizobia nodulating Pongamia isolated from Western Australia and India but not in Queensland, Australia. This study is the first to report such rhizobia isolates that nodulated Pongamia. Secondly, is to establish efficient nodulation by studying the factors such as nitrate and salinity. The published literature has provided extensive details on the effects of these factors in nodulation and their mechanisms in various legumes. However, only one preliminary study was published from our laboratory; the present study is the in-depth continuation of that effort. Lastly, nitrogen fixation in Pongamia must be assessed to determine if fixed nitrogen is sufficient to support its growth and reproduction. Acetylene reduction assay is the simplest and most common method of assessing fixed nitrogen but in this research, different methods were explored in order to compare both qualitative and quantitative results. This review summarises the current knowledge related to Pongamia, rhizobia, nodulation and nitrogen fixation.
Evaluation of Growth, Flowering and Seed Morphology of Batflower, Tacca chantrieri Andre
Authors: Ajisyahputra Nikko Rizky , Palupi Endah Retno , Krisantini Krisantini , Wiendi Ni Made Armini , Mulyono Joko 
Published: November 2019

Tacca chantrieri is a perennial plant belongs to Taccaceae family that has the potential to be marketed as an ornamental plant due to its unique shape and dark color inflorescence. To date, very limited publication on T. chantrieri are available. The aim of this research was to examine plant growth pattern and flower phenology of T. chantrieri from West Borneo, Indonesia, and from Queensland, Australia in relation to their potential development as ornamental pot plants. The study was extended to examine T. chantrieri seed morphology with an inclusion of an accession from Thailand. The field experiment was conducted at the Leuwikopo experimental station in Darmaga, Bogor, Indonesia. Seed morphology examination was conducted at the Histology Laboratory of Department of Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University. T. chantrieri from West Borneo blooms six times a year whereas the Queensland accession twice a year. West Borneo accession had smaller bractea, fewer numbers of flowers per inflorescence and shorter flower stalk than Queensland accession. In addition, T. chantrieri Queensland grew faster than Borneo with the one leaf formed every two to three weeks, whereas it was at least four weeks in the Borneo accession. Both accessions were susceptible to leaf brown spot disease caused by Cercospora taccae. T. chantrieri Queensland seeds are oval dark brown, whereas West Borneo and Thailand accessions were shaped like kidneys (reniform) with a lighter brown color. This study demonstrated that there is great diversity in T. chantrieri including plant morphology, seed shape and color, which are important for species identification and for development of T. chantrieri as ornamental pot plant.
Optimization of Nitrogen Fertilization and Seedling Density of A New Rice Type (Oryza sativa L.) “IPB 3S”
Authors: Sugiyanta Sugiyanta , Kusuma Galih Angga 
Published: November 2019

The new plant type of rice, or ‘padi tipe baru’ (PTB) in Indonesian, is a new group of rice cultivars with a higher productivity compared to the modern rice varieties (‘varietas unggul baru’ or VUB). This study was conducted to determine the optimum dose of nitrogen fertilization and the seedling density or number of seedlings per hill to increase growth and yield of the new type of rice “IPB 3”. The experiment was conducted in the Bogor Experimental Station in January to June 2015. Nitrogen doses (90, 120, 150, 180 kg N.ha-1) and number of seeds per hill (1, 5, 10, 15 and 20) were tested. The results showed that the increased dose of nitrogen fertilizer reduced the percentage of filled grains, the rate of photosynthesis and the grain yield per hectare. Similarly, an increase in the seedling density up to 15 seeds decreased the dry matter of the crop, the number of grains per panicle, and grain weight per plant, but increased the grain yield per hectare. The optimum yield of “IPB 3S” was achieved with 90 kg N.ha-1 with 15 seeds per hill. The results of this study have provided a guideline for an improved nitrogen management in relation to rice seedling population to increase yield of a new rice type “IPB3S”.Keywords: “IPB 3S”, new plant type, fertilizer, local variety
Степень влияния банковского сектора на страховой рынок
Authors: Тарасова Ю. А. , Хохлова Е. С. 
Published: December 2019

<span>Ставший явным контроль банков над страховым сектором в последние годы</span><span class="myHorizontalScaleForEmDashSpaceBefore"> </span><span>–</span><span class="myHorizontalScaleForEmDashSpaceAfter"> </span><span>одна из самых обсуждаемых тем в финансовой и научной среде, но пока участники дискурса не пришли к единому мнению о том, как влияет такое взаимодействие на другие секторы экономики. Кроме того, отмечено, что количество страховых компаний быстро сокращается. Цель настоящей работы</span><span class="myHorizontalScaleForEmDashSpaceBefore"> </span><span>–</span><span class="myHorizontalScaleForEmDashSpaceAfter"> </span><span>доказательство двух рабочих гипотез о том, что банки: 1) оказывают давление на страховой рынок, 2) ведут его к олигополизации с высокой концентрацией доли отдельных компаний. С помощью корреляционного, сравнительного и количественного анализа коэффициентов, отвечающих за тип структуры страхового рынка, нам удалось доказать, что банковский сектор практически полностью контролирует страховой рынок, на котором в результате давления банков происходит процесс установления олигополии.</span>
EDUKASI DAN DEMONSTRASI PEDOMAN GIZI SEIMBANG UNTUK ANAK SEHAT DAN BERPRESTASI
Authors: Jannah Miftahul , Kusumaningrum Indah 
Published: December 2019

School-age children tend to have poor eating behavior and lack of knowledge regarding nutrition, whereas that age group is the most vulnerable to malnutrition. This activity aimed to increase the knowledge about balanced nutrition guideline among students in State Elementary School Pulogebang 11, East Jakarta. This activity was conducted among all 4th grade students which numbered 109 students, in February 2019. The details of the activity are (1) education and demonstration about balanced nutrition guideline, in the form of lectures, games, singing, and exercise; (2) nutritional status assessment by measuring body weight and height of the students; and (3) food safety measurement by checking borax and formalin contained in snacks. The results of this activity shows an increase in knowledge related to balanced nutrition guideline, evidenced by students being able to answer and complete the game correctly. In terms of food safety, there are no snacks that contain formalin and borax. However, some snacks still contain other food additives, such as artificial sweetener, coloring, and flavoring. Food vendors also still lack of hygiene and sanitation. Based on nutritional status measurements, the prevalence of very thi, thin, normal, overweight, and obese were 4.6%, 7.3%, 59.6%, 12.8%, and 15.6% respectively.
Pemilihan Lokasi Usaha Vaporstore Menggunakan Metode Weighted Product
Authors: Budhi Made Arya 
Published: December 2019

Gaya hidup merupakan salah satu bagian yang tumbuh beriringan dengan era modernisasi. Gaya hidup modern yang sekarang banyak dianut oleh masyarakat kebanyakan adalah gaya hidup yang bersifat konsumtif. Vape merupakan salah satu teknologi rokok elektrik yang sedang digandrungi pada saat ini. Walaupun legalitas dari teknologi ini masih diperdebatkan hingga saat ini, namun para pengguna dari teknologi ini semakin bertambah banyak. Vapor store merupakan sebuah usaha yang menyediakan perlengkapan dari vape. Weighted Product merupakan salah satu metode yang dapat membantu dalam pemilihan lokasi. Penelitian ini bertujuan untuk membantu dalam penentuan lokasi vapor store yang berimbas pada tingginya tingkat penjualan.