Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Widyariset

widyariset
Website

Published by Lembaga Ilmu Pengetahuan Indonesia

ISSN : 14117932 EISSN : 24610976 DOI : -

Core Subject : Engineering,

Engineering

Widyariset is a scientific journal which publishes the results of research and development, assessment and systematic thinking about science and technology. The writers of the scientific papers in this journal come from researchers/researcher candidates from various institutions' research and development (R&D), and universities. Widyariset is published regularly three times a year: in April for the issue of Social Sciences and Humanities (IPSK), in August for the issue of Natural Sciences (IPA) and in December for the issue of Engineering Sciences (IPT).

Arjuna Subject : -

Articles 485 Documents

28 29 30 31 32

THE EFFECT OF MINIMUM WAGE INCREASING TO UNEMPLOYMENT RATE IN INDONESIA FOR PERIOD 1992–2010 Yuventus Effendi
Widyariset Vol 15, No 1 (2012): Widyariset
Publisher : Pusbindiklat - LIPI

This research is trying to explain Indonesian empirical evidence about minimum wage increasing effecttowards unemployment. Minimum wage increasing should become a benefit for labour force. Unfortunately, macroeconomicstheory stated that the effect of minimum wage increasing has positif correlation with labour surplus.Research method that will be used in this paper is simple regression by using panel data. The result of this researchis increasing minimum wage will be significantly affect unemployment for period 1992–2010, in Indonesia. Forevery 10% minimum wage increasing will affect unemployment about 11,35% positively. This research also findthat for every province there will be a different unemployment increasing percentage possibly depends on cost ofproduction, labour surplus, and provincial GDP.

PERANCANGAN SISTEM KUNCI ELEKTRONIK BERBASIS MIKROKONTROLER AT89C52 Briliant Adhi Prabowo; HerIan HerIan
Widyariset Vol 12, No 1 (2009): Widyariset
Publisher : Pusbindiklat - LIPI

The access security awareness using conventional keys was less practical and much risky of leaving or even loosing the keys. Besides, access can not be locked automatically whenever the authentic user forgets to lock the door. The purposed of this research was to develop the electronic lock system design using personal identification number (PIN). Using PIN as an access key will give an easier method for the authenticated user without decreasing security level, and also it is more practical and easier since the authentic user doesn't need any key at all. This electronic lock design uses microcontroller AT89C52 for main control of the system which could be implemented on restricted area like laboratories or residences as well. More than 6000 PIN data can be saved in the serial memory 24LC65, and it will be accessed when the user enter the correct PIN.

UTILIZATION OF BIOFLOCS FROM NURSERY FOR FRESHWATER PRAWN (Macrobrachium rosenbergii) LARVAE REARING Asep Sopian; Ikhsan Khasani; Fajar A
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

The Bioflocs technology development in the aquaculture industry is very prospective due to many inheren benefits, especially for water quality control and nutrition substitution. This study aims to determine the effect of media bioflocs nursery for freshwater prawn (Macrobrachium rosenbergii) larvae rearing. The experiment design with completely randomized design was used in the study with 3 treatments and 6 replications. The treatment used were: A. without bioflocs addition (control), B. the addition of 5 ml bioflocs, and C. the addition of 10 ml bioflocs. The 1st day old larvae was used in the study and reared on a 60 l conical fiberglass at 50 ind/l of density. The main parameters were larvae development or larval stage index (LSI) and survival rate (SR). Based on the result of statistical analysis showed that the addition of bioflocs affected survival rate significantly (p<0.05) and the best survival values generated by the addition biofloc treatment as much as 5 ml.

KELAYAKAN USAHA TANI PADI GOGO DENGAN POLA PENGELOLAAN TANAMAN TERPADU (PTT) DI KABUPATEN ACEH BESAR, PROVINSI ACEH Eka Fitria; M. Nasir Ali
Widyariset Vol 17, No 3 (2014): Widyariset
Publisher : Pusbindiklat - LIPI

Aceh is one of the center of rice production areas in Indonesia. Nevertheless, especially there upland, rice productivity is still very low. The purpose of this study is to determine the feasibility of upland rice farming pattern through Integrated Crop Management (ICM). Location for the study in Tubaluy Village, Darul Imarah Sub-District, Aceh Besar, during May–August 2009, is determined purposively. The study is conducted over an upland area of 3.0 ha property of several farmer. The study involves 8 farmers as well. The results shows that adopting four varieties of rice with the application of ICM is worth the effort, amidst the four varieties potentially yield very well (6–7 tonnes/ha) and are more often planted by farmers for their moderate resistance to blast attack. Highest production capability is found in Towuti (6.29 tonnes/ha) with R/C ratio (2.88). With the application of a ICM, break even production (TIP) and breakeven price (TIH) analysis of four varieties tested (Cirata 62.32%, Limboto 61.40%, Situ Bagendit 62.32% and Tuwoti 65.35%) results that the production of those four varieties will not cause loss since any reducing in productivity or prices will not exceed the value of TIP or TIH. It means the four varieties remain profitable to be produced. The development of dryland rice farming can be carried out by improving farmers’ access to resources, capital, technology, market and productivity through innovation and diversification of production. Furthermore, the development can be established by empowering farmers, develop- ing the institutions needed, and encouraging active participation of all stakeholders.

OPTIMIZING UTILIZATION OF WATER IN VAN DER WIJCK IRRIGATION SYSTEM BY FUZZY LINEAR PROGRAMMING FOR FARMING SYSTEM Sukarjo Sukarjo
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

Van Der Wijck irrigation system was applied in Sleman and Bantul district of the Yogyakarta Special Province that has a 3,426.57 ha area. Van Der Wijck is a multipurpose irrigation system because water is used not only for growing crops, but also for sugarcane plantation and fi sh pond. Because the priority service is not clearly defi ned, confl icts among water users are easily occur. The aims of the study were (i) to compute and to predict the water availability both from rainfall and river fl ow, and (ii) to determine the use of the water in order to obtain optimum area of fi sh pond, sugarcane plantation, and other crops passed on discharge availability, seasonal water require-ment, and farm profi t. The results showed that the optimum areas for fi sh pond 17.2 ha and rice fi eld 3,309.57, 2,409.57, and 1,909.57 ha for planting season I, II, and III, respectively. The optimum areas for sugarcane are 35 ha, which is exchangeable with rice area. The optimum area of upland crops for planting season I, II, and III are 100, 1,000, and 200 ha, respectively.

THE MIRROR OF INDONESIAN MARRIAGE ACT (STUDY OF UNREGISTERED DIVORCE IN MALAY SOCIETY IN TANJUNG PURA SUBDISTRICT, LANGKAT) Fatimah Zuhrah
Widyariset Vol 14, No 1 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

The aim of this study is to see the divorce between a couple without court process decision as a crucial issue in Indonesian Marriage Act No. 1/1974. In an article 39 of the Marriage Act No. 1/1974 paragraph (1) mentioned:Divorce can only be done in front of a competence court and through the trial court after the Court tried and failed to reconcile the two sides. Even though Indonesian marriage act had reformed as a unity handbook for all Indonesian people, but in fact, its presence has not been received as positive response in terms of implementation and practice. For the majority of Malay community in the District of Tanjung Pura, the divorce can only be done in front of the judge and through the trial, as stated in article 39 of the Marriage, is relatively large wedge. Many factors causing its objections are: Fiqh oriented, internal judiciary, lack of legal awareness, and many factors related to facilities and infrastructures.

INFLUENCES OF METEOROLOGICAL PARAMETERS AND OZONE PRECURSORS TO NEURAL NETWORK MODEL IN OZONE TROPOSPHERIC CONCENTRATION (STUDY IN BANDUNG CITY) Dyah Lukita Sari; R. Driejana
Widyariset Vol 14, No 3 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

As an air pollutant, the fate of ozone is determined by the movement and chemistry of atmospheric dynamics and the precursors of ozone are emitted from the source. In that case the effect of each of meteorological param- eters and ozone precursors need to be known so that the ozone concentration can be predicted. In this research the concentration of ozone precursors (NO and NO2), temperature, solar global radiation, humidity, and wind speed as meteorology parameters were used as input in artifi cial neural network program to obtain model which can predict concentration of tropospheric ozone in Bandung city. The relation between ozone precursors concentration and meteorological parameters to ozone concentration was indicated by the correlation value. Positive correlation values, the increase in ozone concentration, was infl uenced by variables of temperature and solar radiation. A negative correlation value, the decline in ozone concentration, is affected by humidity variables. Modelling results indicate that the use of temperature and concentrations NO2 as data input appeared to be a dominant contributors rather than the other input parameters.

GOOD GOVERNANCE: CHALLENGES AND PROSPECTFOR INDONESIA Arif Budi Rahman
Widyariset Vol 14, No 1 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

This paper discusses the development of implementation of good governance in Indonesia following the stepping down of Suharto. Even though the government has designed several measures, there are still several barriers at the implementation level. These barriers include the slow bureaucratic reform, resistance of government officials on change, authoritative and centralistic regulations left by previous regime and lack of effective leadership.

EMBRYONIC AND EARLY LARVAE DEVELOPMENT OF WILD BETTA (Betta imbellis LADIGES 1975) Sawung Cindelaras; Anjang Bangun Prasetio; Eni Kusrini
Widyariset Vol 1, No 1 (2015): Widyariset
Publisher : Pusbindiklat - LIPI

Cupang (Betta imbellis) is a popular ornamental and fighting fish in Indonesia. Its popularity is not followed by its scientific information. The aim of this study was to explore the embryonic stages and early larva development. This information is needed for fish breeding. Total of 20–40 eggs and larvae were observed under a microscope with 40 and 100 magnifications. Eggs were observed every cleavage stage and larvae were observed every 12 hours. Fertilized eggs were seen translucent with dark yolk egg in a diameter of 1.09±0.04 mm. Cleavage stages occurred during 4–55 minutes after fertilization. Larvae hatched ±29 hrs after fertilization.The length of hatched larvae was 2.42 ±0.076 m, while yolk volume was 0.11 ±0.028 mm2. Larvae became free-swimming in 2-3 days and yolk were fully absorbed in 3–4 days after hatching and started to eat. The cleavage stage occurs for 55 minutes after fertilization and becomes foraging with a size of mouth opening 0.31±0.005mm which could consume nauplii ofArtemiasp.

PHOSPHORUS CONTENT IN THE LOWLAND RICE (Oryza sativa L.) DERIVED FROM P-FERTILIZER AND ORGANIC MATTER Aisyah D. Suyono; Ania Citraresmini
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

A pot experiment was conducted at the experiment station PATIR – BATAN, in order to determine phospho-rous content derived from P-fertilizer and organic matters in paddy ﬁ eld, both quantitatively and qualitatively. In the experiment, factorial pattern of Randomized Group Design with 3 replication was used. The ﬁ rst factor was the dose of SP-36 with four doses, which were 0, 30, 60, and 90 kg ha/SP-36. The second dose was organic fertilizer with four doses, which were 0, 5, 10, dan 15 ton/ha. 32P isotope technique with A-value methode was used to determine the absorption of P by the plants in order to establish the composition of P derived from the soil, 32P, SP-36 and organic fertilizer. The results of the experiment proved that an increase in the P content from one of the P sources caused a decrease in the P content from other P sources.

Page 30 of 49 | Total Record : 485

28 29 30 31 32

Filter by Year

2009 2022

Filter By Issues

All Issue Vol 8, No 1 (2022): Widyariset Vol 6, No 2 (2020): Widyariset Vol 6, No 1 (2020): Widyariset Vol 5, No 2 (2019): Widyariset Vol 5, No 1 (2019): Widyariset Vol 4, No 2 (2018): Widyariset Vol 4, No 1 (2018): Widyariset Vol 3, No 2 (2017): Widyariset Vol 3, No 1 (2017): Widyariset Vol 2, No 2 (2016): Widyariset Vol 2, No 1 (2016): Widyariset Vol 18, No 2 (2015): Widyariset Vol 18, No 1 (2015): Widyariset Vol 1, No 1 (2015): Widyariset Vol 17, No 3 (2014): Widyariset Vol 17, No 2 (2014): Widyariset Vol 17, No 1 (2014): Widyariset Vol 16, No 3 (2013): Widyariset Vol 16, No 3 (2013): Widyariset Vol 16, No 2 (2013): Widyariset Vol 16, No 1 (2013): Widyariset Vol 16, No 1 (2013): Widyariset Vol 15, No 3 (2012): Widyariset Vol 15, No 3 (2012): Widyariset Vol 15, No 2 (2012): Widyariset Vol 15, No 1 (2012): Widyariset Vol 14, No 3 (2011): Widyariset Vol 14, No 2 (2011): Widyariset Vol 14, No 1 (2011): Widyariset Vol 13, No 3 (2010): Widyariset Vol 13, No 2 (2010): Widyariset Vol 13, No 2 (2010): Widyariset Vol 13, No 1 (2010): Widyariset Vol 12, No 3 (2009): Widyariset Vol 12, No 1 (2009): Widyariset More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
widyariset@mail.lipi.go.id

Editorial Address
Pusbindiklat Peneliti-LIPI (The National Training and Education Center for Researchers Development – Indonesian Institutes of Sciences) Jl. Raya Bogor Km. 46, Cibinong Science Center Cibinong - Bogor 16911

Location
Kota adm. jakarta selatan,

Dki jakarta

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official widyariset@mail.lipi.go.id

Editorial Address Pusbindiklat Peneliti-LIPI (The National Training and Education Center for Researchers Development – Indonesian Institutes of Sciences) Jl. Raya Bogor Km. 46, Cibinong Science Center Cibinong - Bogor 16911

Location Kota adm. jakarta selatan, Dki jakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
widyariset@mail.lipi.go.id

Editorial Address
Pusbindiklat Peneliti-LIPI (The National Training and Education Center for Researchers Development – Indonesian Institutes of Sciences) Jl. Raya Bogor Km. 46, Cibinong Science Center Cibinong - Bogor 16911

Location
Kota adm. jakarta selatan,

Dki jakarta

INDONESIA