cover
Contact Name
Hendry Izaac Elim, Ph.D
Contact Email
editorsciencenature@gmail.com
Phone
+6285243358669
Journal Mail Official
ya.lesnussa@fmipa.unpatti.ac.id
Editorial Address
Lantai 2, Gedung Biotek, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura, Jln. Ir. M. Putuhena, Poka-Ambon, 97233, Maluku, Indonesia
Location
Kota ambon,
Maluku
INDONESIA
Science Nature
Published by Universitas Pattimura
ISSN : -     EISSN : 26546264     DOI : https://doi.org/10.30598/SNvol2iss3pp192-207year2
Core Subject :
Science Nature is a frontier journal in natural sciences and its multitasking applications involving various interdisciplinary fields such as the character of nature, properties of scientific development, and the applications of natural engineering. The scientific scope of this newly frontier multidisciplinary journal involve the following three main poinnt: 1. Educating scientist of their better contributions to other 2. Developing knowledge and improving wisdo of people based on excellent understanding of the truth in nature and science 3. Engineering scientific finding of the real technology, and its useful products such as medicine products, foods, and drinks, and another useable human daily products and smart devices as well as applied engineering technology products involving mass transportation vehicles, and movable building system
Arjuna Subject : -
Articles 28 Documents
A Frontier 2D Nanobattery: “Improving Challenges (Hotumese) and Development” Elim, Hendry Izaac; Reddy, MogalahalliVenkatesh Venkatashamy; Jose, Rajan
SCIENCE NATURE Vol 2 No 2 (2019): SCIENCE NATURE
Publisher : Faculty of Mathematics and Natural Sciences, University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/SNvol2iss2pp114-121year2019

Abstract

A brief conceptual challenges improvement (hotumese) and development of nanobattery is explained in a wide insight of intuition idea and technology planning for a better future human kind life particularly in their needs of mobile effective energy.
SCIENCE NATURE VOL. 2(2), PP.90-127, June 2019 (PDF of FULL MAGAZINE) nature, science
SCIENCE NATURE Vol 2 No 2 (2019): SCIENCE NATURE
Publisher : Faculty of Mathematics and Natural Sciences, University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/SNvol2iss2pp90-127year2019

Abstract

This issue entitled as NEW MAN has 5 original papers from 3 different countries authors of Indonesia, Canada and Malaysia. The incredible things in this issue are about customary laws findings in Aru islands region of 804 small islands to improve local people life from coastal marine areas, and the discovery of new herbal medicine products based on Galoba (zingiberaceae fruits) Maluku called as Herbal Blessing which is better than former Love herbal invented from STIKES Halmahera. Another conceptual thought to expand the improvement of nanobattery research was about anti-crack and a bit elastic nanobattery system for future technology and multitasking applications.
INFLUENCE OF ORGANIC FERTILIZER SAGO COMPOST ON ULTISOLS SOIL PHYSICAL PROPERTIES OF TELAGA KODOK SUB VILLAGE IN HITU VILLAGE OF CENTRAL MALUKU DISTRICT AND THE CORN (Zea Mays Ceratina) CORPS PRODUCTION Talakua, Silwanus M.; Kaya, Elizabeth
SCIENCE NATURE Vol 2 No 1 (2019): SCIENCE NATURE
Publisher : Faculty of Mathematics and Natural Sciences, University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/SNvol2iss1pp042-056year2019

Abstract

This study aims to prove that the giving of organic fertilizer sago compost can improve soil physical properties and improve yields of maize crops on Ultisols. This research was conducted in Telaga Kodok Subvillage, Hitu Village Central of Maluku District in April 2016 until its completion. Soil analysis was conducted at Balai Penelitian Tanah Bogor. This research used Factorial Random Block Design which consist of one factor and repeated three times with compost dosage of sago compost is K0 (no compost), K1 (30 ton/ha), K2 (45 ton/ha), K3 (60 ton/ha ). Giving the ela sago compost can improve soil physical properties that is able to reduce the bulk density (0.73 g/cm3), particle density (1.78 g/cm3) and rapid drainage pores (7.69%) and able to improve/increase moisture content of field capacity (43.91%) and water available pore (17.00%). The ela sago compost as organic fertilizer can increase the yield of corn crop is 89,80 g/plant or 4,28 t/ha. The optimum dosage of ela sago compost as organic fertilizer found to improve soil physical properties and increase the yield of corn crop is 60 t/ha.
INTERPRETATION OF ALTERATION MINERALS AROUND THE OMA-HARUKU HOT SPRINGS, CENTRAL OF MOLUCCAS Andayany, Helda; Kelibulin, Josephus Ronny
SCIENCE NATURE Vol 2 No 2 (2019): SCIENCE NATURE
Publisher : Faculty of Mathematics and Natural Sciences, University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/SNvol2iss2pp090-096year2019

Abstract

Petrographic analysis to rock samples located at Oma-Haruku hot springs was dominated by mudstone. Another alteration mineral types of the rocks in this area are quartz, aragonite/calcite and feldspar minerals. Petrographic analysis was supported by the XRD method. The method indicated that the alteration minerals content was generally dominated by the presence of aragonite/calcite with particle size of 0.05 - 2 mm, the abundance of 55% and the spread evenly. Based on such presence of aragonite/calcite, one can interpret that the origin rock was carbonate. Alteration minerals which were generally dominated by mudstone indicate that the type of hot spring area in Oma-Haruku is a type of high-temperature reservoir, namely > 175 oC. Therefore, the area is potentially as geothermal field in Central of Moluccas.
USING POINT COUNTERPOINT METHOD TO IMPROVE SPEAKING ABILITY OF GERMAN LANGUAGE STUDENTS AT PATTIMURA UNIVERSITY Serpara, H.; Karuna, K.; Nikijuluw, Maria M.
SCIENCE NATURE Vol 2 No 4 (2019): SCIENCE NATURE
Publisher : Faculty of Mathematics and Natural Sciences, University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/SNvol2iss3pp208-218year2019

Abstract

This research is a classroom action research, which carried out to describe the development of students' speaking abilities as the effect of using the point counterpoint method. This research has been carried out in semester 5 (five) in academic year 2019/2020. The population of this study is the students of the German Language Study Program, while the selected sample is the 5th semester students in total 30 people. The procedure of this research was carried out in cycles, starting from planning, observation and reflection. Research instruments are test and non-test. The results of cycle 1 indicate that students have not yet reached a minimum score or passing grade, on average score of 58.93. The results of the second cycle test show that results increased, namely on average score of 72.5. Overall, the results of this study indicate that using a point counterpoint method can improve students' speaking abilities, especially in creative thinking and argumentation. Thus, using this method in teaching is useful to support the achievement of speaking competency at a B1-GER level.
H_∞ state feedback for linear systems with decentralized control inputs Fadhilah, Helisyah Nur; Zhai, Guisheng; Adzkiya, Dieky; Apriliani, Erna
SCIENCE NATURE Vol 2 No 4 (2019): SCIENCE NATURE
Publisher : Faculty of Mathematics and Natural Sciences, University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/SNvol2iss4pp219-231year2019

Abstract

This paper considers state feedback with decentralized structure for interconnected systems. The connection between subsystems is described by a directed graph. To design a decentralized controller, we use the information from its own subsystem and other subsystems based on the interconnection. Decentralized controller is defined as a solution of bilinear matrix inequality (BMI) problem, which is then solved by using the homotopy approach. Two numerical examples are performed to show validity of the design procedure
The Culture of Sasi In Babar Islands: Traditional and Church Wisdom Ratumanan, Tanwey G.; Marantika, J. E. R.
SCIENCE NATURE Vol 2 No 3 (2019): SCIENCE NATURE
Publisher : Faculty of Mathematics and Natural Sciences, University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/SNvol2iss3pp167-176year2019

Abstract

Sasi is a culture that is still practiced and preserved in Maluku province in general and in Babar islands in particular until today. Sasi is a form of prevention of taking natural resources both land and sea within a certain period to let them grow and develop. The Babar islands are known for two types of Sasi, the traditional and the church. Currently, the implementation of Sasi is more dominated by the church – the traditional Sasi is rarely implemented. Sasi provides some benefits both to the environment and community. These benefits include preserved natural resources before harvest, economy increase, public appreciation encouragement, build-up social interaction, and prevention of theft. The long-term application of Sasi consistently will develop positive values of each member in the community, such as (1) appreciation to the environment, (2) devoted to custom rules, and (3) intimacy and mutual share.
Overcoming the Existence of Extreme Outlier Data by Using Robust MM Method Based on The Objective Function of Tukey bisquare Tinungki, Georgina Maria
SCIENCE NATURE Vol 1 No 1 (2018): SCIENCE NATURE
Publisher : Faculty of Mathematics and Natural Sciences, University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/SNvol1iss1pp022-032year2018

Abstract

A widely used estimation method in estimating regression model parameters is the ordinary least square (OLS) that minimizes the sum of the error squares. In addition to the ease of computing, OLS is a good unbiased estimator as long as the error component assumption () in the given model is met. However, in the application, it is often encountered violations of assumptions. One of the violation types is the violation of distributed error assumption which is caused by the existence of the outlier on observation data. Thus, a solid method is required to overcome the existence of outlier, that is Robust Regression. One of the Robust Regression methods commonly used is robust MM method. Robust MM method is a combination of breakdown point and high efficiency. Results obtained based on simulated data generated using SAS software 9.2, shows that the use of objective weighting function tukey bisquare is able to overcome the existence of extreme outlier. Furthermore, it is determined that the value of tuning constant c with Robust MM method is 4.685 and it is obtained95% of efficiency. Thus, the obtained breakdown point is 50%.
Aspect-ratio Dependence of Optical Nonlinearities on Resonance with Longitudinal Surface Plasmon in Au Nanorods: Unique Character versus Common Behavior Elim, Hendry I.; Ji, Wei; Dhoni, Mohan Singh; Venkatram, N.; Yang, Jian; Lee, Jim Yang
SCIENCE NATURE Vol 1 No 1 (2018): SCIENCE NATURE
Publisher : Faculty of Mathematics and Natural Sciences, University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/SNvol1iss1pp001-007year2018

Abstract

Unique character and common behavior are two distinguished things. In frontier nanoscience and nanotechnology, unique characters were normally obtained in some novel exotics materials such as metal-metal core-shell materials, metallic-semiconducting hybrid nanomaterials, and organic-inorganics complex nano-compounds. On the other hand, normal behavior of natural phenomena including in nano-size objects were obviously predicted based on their exact size related to confinement effect, and capability to interact with another physical system in nature. Here, we report an example of unique character due to evolution nonlinear behavior observed in gold nanorod with their aspect-ratio dependence of optical nonlinearities investigated by femtosecond Z-scan measurements closed to resonance longitudinal surface plasmon peak in gold nanorods (Au NRs). Saturable absorption manifests itself at low excitation (laser irradiances < ~7.0 GW/cm2), while reverse saturable absorption dominates at higher excitation. Both the nonlinear processes are found to increase with the aspect ratio of Au NRs. Based on the discrete dipole approximation, qualitative explanations are presented for the observed nonlinear behavior. While common behavior in metallic quantum dots or other shapes of metallic nanomaterials was not the significant in our observation.
The Influence of Calcination Temperatures in TiO2 Impregnated Ouw’s Natural Clay on Its Degradation Activity of Methylene Blue Dye Teddy, Moylani; Bijang, Catherina M.; Nurdin, Muh.; Kapelle, Berly
SCIENCE NATURE Vol 1 No 1 (2018): SCIENCE NATURE
Publisher : Faculty of Mathematics and Natural Sciences, University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/SNvol1iss1pp008-014year2018

Abstract

The influence of calcination temperatures in TiO2 impregnated Ouw’s natural clay on its degradation activity of methylene blue dye has been done. Calcination process was conducted at various temperatures of 200, 300, and 400 oC. The characterization of TiO2 impregnated clay’s structure was examined by IR analysis. The result showed that Ouw’s natural clay has characterized vibrations of montmorillonite and thermal effect didn’t affect the structure of TiO2 impregnated clay. The highest result of methylene blue’s degradation occurred in the addition of TiO2 impregnated clay calcinated at 200 oC (98.69%). This result was found that calcination temperatures of impregnation process were significantly affect the degradation activity of TiO2­ impregnated clays.

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