scholarly journals ANALISIS FAKTOR-FAKTOR DETERMINASI PASAR BENIH KELAPA SAWIT DI INDONESIA

2013 ◽  
Vol 1 (1) ◽  
pp. 33
Author(s):  
Tony Liwang ◽  
Arief Daryanto ◽  
E. Gumbira-Said ◽  
Nunung Nuryartono
Keyword(s):  
Oil Palm ◽  
Rapid Development ◽  
Plant Production ◽  
Determinant Factors ◽  
Factors Analysis ◽  
Ordinal Logistic Regression Analysis ◽  
Gender Education ◽  
Hybrid Seeds ◽  
Convenience Sampling ◽  
Selection Of

* Plant Production and Biotechnology Division, PT SMART Tbk., Jakarta** Manajemen dan Bisnis, Institut Pertanian Bogor, Bogor.Email : [email protected] development of oil palm (Elaeis guinensis Jacq.) industry in Indonesia was very fast,especially within the last decade. This rapid development was in line with the increasing of land usedfor oil palm plantation and the availability of oil palm hybrid seeds. Until 2009 the demand of oilpalm certified hybrid seeds was beyond its supply which has resulted into the usage of the illegal oilpalm seeds with low quality. One of the strategies to solve the shortage of certified hybrid seeds wasto increase the number of seed producer in Indonesia, so that since 2009 the oil palm seeds produceddomestically was over supplied. However, the usage of illegal oil palm seeds was still taking place.Therefore, this research was designed to analysis the determinant factors of oil palm seeds market inIndonesia based on consumer's demography profile, purpose and frequency seed purchase,costumer satisfaction level and seed compatibility. This research was based on the survey taken fromthe respondents in the regency of Siak, Kampar and Rokan Hulu, province of Riau. Selection of therespondents was used the convenience sampling method and later on by judgmental sampling. Slovinmethod was used to determine number of respondent. Data was analyzed using descriptive analysisand ordinal logistic regression analysis. The results of data analysis shown that the amount of soldseeds was depend on demographic factors, i.e. gender, education level, activity and consumer statusin company, but not age of consumers. The purpose and frequency to purchase the oil palm seedswere negatively correlated to the number of sold seeds. Moreover, the level of customer satisfactionhas significant effect on the number of sold seeds.Keyword: consumer, seed, oil palm, determinant factors, analysis of ordinal logistic.

A Selection of Bandung City Travel Route Using The FLOYD-WARSHALL Algorithm

2020 ◽  
Vol 12 (7) ◽  
Author(s):  
Muhammad Ghifari Arfananda ◽  
◽  
Surya Michrandi Nasution ◽  
Casi Setianingsih ◽  
◽  
...  
Keyword(s):  
Traffic Congestion ◽  
Rapid Development ◽  
Route Selection ◽  
Tourist Attractions ◽  
Tourist Destinations ◽  
A Value ◽  
Distance Data ◽  
Simple Additive Weighting ◽  
The City ◽  
Selection Of

The rapid development of information and technology, the city of Bandung tourism has also increased. However, tourists who visit the city of Bandung have problems with a limited time when visiting Bandung tourist attractions. Traffic congestion, distance, and the number of tourist destinations are the problems for tourists travel. The optimal route selection is the solution for those problems. Congestion and distance data are processed using the Simple Additive Weighting (SAW) method. Route selection uses the Floyd-Warshall Algorithm. In this study, the selection of the best route gets the smallest weight with a value of 5.127 from the Algorithm process. Based on testing, from two to five tourist attractions get an average calculation time of 3 to 5 seconds. This application is expected to provide optimal solutions for tourists in the selection of tourist travel routes.

Pengaruh Persepsi Kegunaan, Persepsi Kemudahan, Kecepatan, Keamanan 75 dan Kerahasiaan Serta Kesiapan Teknologi Informasi Wajib Pajak terhadap Penggunaan e-Filing Bagi Wajib Pajak Orang Pribadi Di Kota Tangerang, Kecamatan Karawaci

2016 ◽  
Vol 8 (1) ◽  
pp. 75-91 ◽  
Author(s):  
Shelby Devina ◽  
Waluyo Waluyo
Keyword(s):  
Ease Of Use ◽  
Perceived Usefulness ◽  
Security And Privacy ◽  
Primary Data ◽  
Perceived Ease Of Use ◽  
Analysis Technique ◽  
Convenience Sampling ◽  
The Individual ◽  
Tax Payers ◽  
Selection Of

The objective of this research was to examine the effect of perceived usefulness, perceived ease of use, speed, security and privacy and readiness technology tax payers information to e-Filing usage. The object of this study is the individual tax payers in Tangerang City, Karawaci District. The selection of the sample is determined based on convenience sampling method. Data used in this study was primary data, id est: questionnaires. The respondent in this study were 110. Data analysis technique in this study using multiple linear regression. The result of this study were (1) perceived usefulness have a significant impact towards e-Filing usage; (2) perceived ease of use have a significant impact towards e-Filing usage; (3) speed does not have a significant impact towards e-Filing usage; (4) security and privacy does not have a significant impact towards e-Filing usage; (5) readiness technology tax payers information does not have a significant impact towards e-Filing usage; (6) perceived usefulness, perceived ease of use, speed, security and privacy and readiness technology tax payers information all simultaneously, have a significant impact towards e-Filing usage. Keywords: e-Filing usage, perceived usefulness, perceived ease of use, readiness technology tax payers information, security and privacy.

scholarly journals Estimates of parameters, prediction and selection of an oil palm population in Ecuador

2018 ◽  
Vol 71 (2) ◽  
pp. 8477-8487
Author(s):  
Digner Ortega Cedillo ◽  
Carlos Felipe Barrera ◽  
Jorge Ortega Cedillo ◽  
Jorge Orellana Carrera ◽  
Marcos Deon Vilela de Resende ◽  
...  
Keyword(s):  
Oil Palm ◽  
Santo Domingo ◽  
Selection Of

Fue empleado el método REML/BLUP para estimar los parámetros genéticos, y seleccionar los mejores individuos provenientes de una población de hermanos germanos de Dura x Dura, a partir de un análisis de correlación entre caracteres, realizando un agrupamiento de familias por disimilaridad multivariada y determinación del número de medidas repetidas necesarias para la selección de las características (número y peso medio de racimos). Fueron evaluadas 24 familias procedentes de tres ensayos del banco de germoplasma de la estación experimental Santo Domingo del INIAP en Ecuador. La evaluación fue realizada en un periodo de cinco años, empleando un diseño en bloques al azar, con doce plantas por parcela y cuatro repeticiones. La variabilidad de la población en relación a las características evaluadas y heredabilidad de individuos dentro del bloque, similar a la encontrada dentro de familias en las parcelas. La ganancia genética de las 10 plantas seleccionadas representa un 43% superior a la media general. La correlación fue baja y negativa para número de racimos y peso medio de racimos. Con base en el agrupamiento de Tocher se obtuvieron seis grupos, donde el grupo IV agrupa las familias seleccionadas por el Rank-medio multivariado (3A, 5C y 7B). Se puede concluir que las estimativas obtenidas por el BLUP, estimulan la continuidad del programa de mejoramiento genético de racimos, con posibilidad de maximizar las ganancias genéticas en generaciones futuras.

scholarly journals THE ESTIMATION OF PEAS COLLECTION IN THE ALTAI

2019 ◽  
pp. 48-52
Author(s):  
S. K. Shchukis ◽  
E. R. Shchukis
Keyword(s):  
Plant Height ◽  
Rapid Development ◽  
Climatic Conditions ◽  
Source Material ◽  
Pea Aphid ◽  
Diverse Source ◽  
Selection Of ◽  
Vast Territory

The article emphasizes the importance of peas as a source of vegetative protein, and indicates on insufficient areas under peas both in Russia and in the Altai. One of the reasons of reducing its acreage is the high costs on peas planting and protecting from pests, diseases and weeds. Climate changing contributes to rapid development of such harmful diseases as ascohitoz, bacteriosis, fusarium, rust, significant number of weevil, pea aphid and moth mullet. Considering the main directions in pea breeding, it should be emphasized that the Altai Area, with its vast territory and diverse natural and climatic conditions, requires highly productive, well-adapted varieties of different use which are capable to effectively use agro-climatic resources of different zones. All this requires the active study of the source material, the selection of new, economically valuable forms and their introduction into the breeding process. It has been noted that the production requires more advanced varieties, the development of which is impossible without the presence of diverse source material. The purpose of the study was to identify the best productive plants in the pea collection of 2012-2017. The material has been represented by 113 variety samples of domestic and foreign selection. The varieties with best productivity were ‘Mnogoplodny 163’, ‘Rheinperle’, ‘Flagman 12’, ‘806’9, ‘Varyag’, ‘Altaisky Usaty’, ‘Pioner’, ‘LittleMarwel’, ‘Mnogoplodny 27’, ‘Zeleny Tsukat’, ‘Ryadovoy’, ‘576/80’. The best forage productivity was produced by ‘Novosibirets’, ‘Varyag’, ‘Pino’, ‘Zeleny Tsukat’, ‘Mnogoplodny 105’. The most fast-ripening varieties were ‘Rheinperle’ and ‘Pyrama’. The samples ‘Novosibirets’, ‘Varyag’, ‘Pino’ and ‘8067’ were characterized with high plant height. The samples ‘Pyrama’, ‘Flagman 12’, ‘Novosibirets’, ‘Sihirobana-Kinusaja’, the line ‘312’ produced large-sized kernels. The great lodge resistance has been shown by ‘Altaisky Usaty’, ‘Svetozar’, ‘Kamerton’, ‘Flagman 12’.

scholarly journals Selection gains for the palm oil production from progenies of American oil palm with oil palm

2021 ◽  
Vol 56 ◽  
Author(s):  
Rui Alberto Gomes Junior ◽  
Alessandra Ferraiolo de Freitas ◽  
Raimundo Nonato Vieira da Cunha ◽  
Antônio José de Abreu Pina ◽  
Higo Otávio Brochado Campos ◽  
...  
Keyword(s):  
Palm Oil ◽  
Oil Palm ◽  
Genetic Parameters ◽  
Recurrent Selection ◽  
Oil Production ◽  
Reciprocal Recurrent Selection ◽  
Fresh Fruit Bunches ◽  
Favorable Conditions ◽  
Selection Of

Abstract The objective of this work was to estimate the genetic parameters, correlations, and selection gains for the oil production of interspecific hybrids progenies between American oil palm, of ‘Manicoré’ origin, and oil palm, of ‘La Mé’ origin. Thirty-nine progenies were evaluated from the sixth to the ninth year after planting, for the productivity of fresh fruit bunches (PROD_FFB), oil content in the bunch (OCB), and palm oil productivity (PROD_OP). The genetic parameters and gains from direct (GDS) and indirect (GIS) selection were estimated for PROD_OP. High values of heritability for the CVg/CVe ratio indicated favorable conditions for the selection. With the selection of 20% of the progenies (selection in both sexes), the following estimates were obtained: 11.15% GDS for PROD_OP, 9.1% GIS for OCB, and 8.1% GIS for PROD_FFB. The PROD_OP of the progenies was of 6,175, 6,057, and 5,995 kg ha-1 per year with GDS and GIS for OCB and PROD_FFB, respectively. The restricted selection of the LM2T male genitor offspring resulted in 5.1% estimated GSD and in a mean of 5,800 kg ha-1 per year for PROD_OP. Selection gains for PROD_OP can be achieved immediately through the selection restricted to oil palm male genitors, and, in the medium and long term, through the interspecific reciprocal recurrent selection between American oil palm and oil palm populations.

scholarly journals Identification of Gene Related to Hard Bunch Phenotype in Oil Palm (Elaeis guineensis Jacq.)

2015 ◽  
Vol 43 (2) ◽  
pp. 147
Author(s):  
Roberdi , ◽  
Sobir , ◽  
Sudirman Yahya ◽  
Nurita Toruan-Mathius ◽  
Tony Liwang
Keyword(s):  
Dna Sequences ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Molecular Genetic ◽  
Molecular Genetic Analysis ◽  
Target Sequence ◽  
Polymorphic Markers ◽  
Copia Retrotransposon ◽  
Selection Of

<p>ABSTRACT</p><p>Molecular genetic analysis of hard bunch phenomenon in oil palm was done in order to elucidate the role of genetic factor underlying hard bunch in oil palm plantation. The aim of this study was to identify the AFLP primer combination that co-segregates with hard bunch phenotype related gene in oil palm. Molecular analysis was done by bulk segregant analysis approach. DNA was isolated from leaves of the normal and hard bunch palm. DNA from ten individual palms from each category were pooled and used as a template. A total of 56 AFLP primer combinations were selected for selection of polymorphic primer, and as a result it was found that 22 AFLP primer combinations (39.28%) were polymorphic. A total of 48 individual of palm DNA containing 24 individual for each group were further genotyped by those 22 polymorphic markers. Of these, one AFLP primer combination (E-ACC/M-CTG) was obtained as a co-segregated marker that distinguished the hard bunch DNA from the normal one. Based on the analysis of the target sequence aligned to the oil palm DNA sequences available in database, we found that our sequence has similarity with Ty-1 copia retrotransposon. This sequence distribute in all 16 linkage group of oil palm genome.</p><p>Keywords: abnormal fruits, AFLP, oil palm, Ty-1 copia retrotransposon</p>

scholarly journals WILLINGNESS TO BE VACCINATED AGAINST COVID-19 AMONG HIGHER EDUCATION INSTITUTION

2021 ◽  
Vol 13 (2) ◽  
Author(s):  
Joel Rey Acob ◽  
Moises Neil V. Seriño ◽  
Reyvin N. Sabanal ◽  
Therese C. Ratilla ◽  
Elwin Jay Yu ◽  
...  
Keyword(s):  
Medical Profession ◽  
Education Institution ◽  
Faculty Members ◽  
Descriptive Statistics ◽  
Pharmaceutical Companies ◽  
Health Crisis ◽  
Beneficial Effects ◽  
Convenience Sampling ◽  
Increase Success Rate ◽  
Selection Of

Background: The increasing COVID-19 cases worldwide ignite pharmaceutical companies’ effort to discover safe vaccines have been eyed globally. Informed perspectives across medical profession explaining beneficial effects of inoculation, however, various personal views persist which lead to confusion among general public. Objectives: To describe demographic characteristics among education institutions and their willingness to be vaccinated. Methods: Data were collected by google forms, in February 2021. The online form was then pre-tested on 10 respondents to refine questions prior to commencing the survey. Convenience sampling was administered for the selection of voluntary respondents. Data cleaning was done prior to the data analysis. Recoding of string variables and omittion of invalid responses were also done. Descriptive statistics was undertaken in a genuine licensed software of IBM SPSS Statistics version 26. Results: A total of 401 respondents answered the survey. More than half of the respondents are female constituting 62.1% of the sample, whereas males constitute 37.9%, mostly faculty members, single (63.1%), earning 20,000 (54.2%) per month. More than half of the respondents are willing to get vaccinated against COVID-19 (54.6%) and have no preference for a specific type of COVID-19 vaccine (54.9%). Around 30.4% are still unsure if they should get vaccinated or not and 15% have indicated negatively. Comparing both sexes, a larger frequency of males is willing to get vaccinated constituting 69.1% and females (45.8%). Conclusion: Males showed more willingness to be inoculated regardless of COVID-19 vaccine types. Education and continuous campaign on the importance of vaccination program is a must to increase success rate to end the health crisis.

scholarly journals Flipping the Undergraduate Classroom: A Case Study

2019 ◽  
pp. 134-138
Keyword(s):  
Self Efficacy ◽  
Flipped Classroom ◽  
Rapid Development ◽  
Intervention Group ◽  
Control Group ◽  
Conventional Teaching ◽  
Information And Communication ◽  
Convenience Sampling ◽  
Group 2

Rapid development in information and communication technology (ICT) is changing the instructional strategies in Higher Education. This study aimed to identify the level of self-efficacy of B.Ed. (IT) undergraduates of a local University in a flipped classroom. Further it also investigated gender difference among the undergraduates self-efficacy in the classroom. A group of 35 student selected using convenience sampling method. This group divided into Group 1 as control group and Group 2 as intervention. Group one consists of 17 students and two consist of 18 students. Initially the two classes answered pre-survey questionnaire of self-efficacy. Then control group was exposed to conventional teaching whereas intervention group intervened with Padlet. Data were analyzed with SPSS and revealed the intervention group has high Cohen effect (d) = .53, which is considered moderate size compared Cohen effect (d) = .17, considered small. This study clearly exhibits intervention group has better self-efficacy than control group. Further, the effect size of control group revealed decline in self-efficacy. In study exhibits there is no difference by gender in terms of self-efficacy. It is expected further study should be conducted by taking in to account sample size, duration of intervention, and method.

Taylor series expansion scheme applied for solving population balance equation

2018 ◽  
Vol 34 (4) ◽  
pp. 561-594 ◽  
Author(s):  
Mingzhou Yu ◽  
Jianzhong Lin
Keyword(s):  
Series Expansion ◽  
Taylor Series ◽  
Numerical Study ◽  
Rapid Development ◽  
Taylor Series Expansion ◽  
Population Balance ◽  
Population Balance Modeling ◽  
Physicochemical Processes ◽  
Selection Of ◽  
Expansion Scheme

Abstract Population balance equations (PBE) are widely applied to describe many physicochemical processes such as nanoparticle synthesis, chemical processes for particulates, colloid gel, aerosol dynamics, and disease progression. The numerical study for solving the PBE, i.e. population balance modeling, is undergoing rapid development. In this review, the application of the Taylor series expansion scheme in solving the PBE was discussed. The theories, implement criteria, and applications are presented here in a universal form for ease of use. The aforementioned method is mathematically economical and applicable to the combination of fine-particle physicochemical processes and can be used to numerically and pseudo-analytically describe the time evolution of statistical parameters governed by the PBE. This article summarizes the principal details of the method and discusses its application to engineering problems. Four key issues relevant to this method, namely, the optimization of type of moment sequence, selection of Taylor series expansion point, optimization of an order of Taylor series expansion, and selection of terms for Taylor series expansion, are emphasized. The possible direction for the development of this method and its advantages and shortcomings are also discussed.

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