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Articles by Sri Hartati
Total Records ( 6 ) for Sri Hartati
  Aminudin Sulaeman , Rudi Dungani , Nuruddin Nurudin , Sri Hartati , Tati Karliati , Pingkan Aditiawati , Anne Hadiyane , Yoyo Suhaya and Sulistyono
  The properties of bamboo are unique compared to solid wood and other ligno- and non-lignocellulosic materials especially for manufacturing, designing and construction usages. Recent technological advancements for bamboo processing has proven the positive advantages of bamboo for various interior and exterior applications including furniture, bio-composites, packaging, transport, building and so on. The variability in size, length and diameter of bamboo, its growth and production is a big challenge for their applications as bio-based material along with durability. Since bamboo has a low durability, protection against biotic and abiotic degradation. Since it has vital importance for its longer service life. Preservation and modification treatment of bamboo are therefore regarded as a necessity. Those preservation and modification techniques would ensure the quality and durability of bamboo resulting sustainability and advanced engineering utilization of bamboo. This article reviews the preservation and modification techniques of bamboo which are crucial for advanced products manufacturing and utilization. The article also summarizes the importance of preservation and modification process, its principles and the challenges in quality and durability enhancement of bamboo products. At the end of the article, applications specially the modern one has also been discussed along with its further advancement.
  Sri Hartati , Tri Untari , Bambang Sutrisno and Ida Fitriana
  Background and Objective: Colibacillosis caused by Escherichia coli (E. coli ) and can cause economic losses in the poultry industry. One of the failures to overcome colibacillosis is the occurrence of bacterial resistance to some antibiotics. This study aimed to determine the effect of Phyllanthus niruri and Curcuma longa on the function of liver and renal layer chicken infected E. coli. Methodology: Fifty layers (DOC) were used in this study. After having infected E. coli, the layers were grouped into 5 and labeled with groups A, B, C, D and E. Group A was those who were treated with Curcuma longa 300 mg kg–1, group B was treated with Phyllanthus niruri 500 mg kg–1, group C was treated with equal dosage (1:1) of Curcuma longa and Phyllanthus niruri, group D was treated with Curcuma longa and Phyllanthus niruri whose dosages were 2: 1 and group E was without herbal treatment. Blood and organ samples were collected at 3 weeks post-herbal-treatment. Blood sample were used for examination of Alanine Transaminase (ALT) and creatinine concentration. Liver and renal samples were for histological examination. The results were analyzed by one-way ANOVA test. Results: Concentration of group B ALT was significantly different with group A, D and E (p<0.05). Group A had the highest ALT concentration i.e., 23.77±0.44 IU L–1 and Group E (without herbal treatment) had the highest creatinine concentration i.e., 0.38±0.02 mg dL–1. Creatinine concentration of group B was significantly different with all treatment groups (p<0.05). Histological observation of liver organs of group A showed infiltration of heterophile cells in the kiernan trigonum areas. Histological observation of renal organs showed that all groups were normal and there was no pathology. Conclusion: Phyllanthus niruri does not cause toxic effects for 21 days, so it can be alternative in the treatment of infectious disease of diarrhea caused by E. coli.
  Kusrini Last Name , Sri Hartati , Retantyo Wardoyo and Agus Harjoko
  Problem statement: The Case Based Reasoning (CBR) method can be implemented in differential diagnosis analysis. C4.5 algorithm has been commonly used to help the method’s knowledge building process. This process is completed by constructing decision tree from previously handled cases data. The C4.5 algorithm itself can be used with an assumption that all the cases has an exact and equal truth value thus have an exact contribution in decision tree building process. However, the decision makers sometimes not sure about the truth of the cases in the cases database, therefore the confidence value can be different for case by case. Besides that, the C4.5 algorithm can only handle cases that are stored in a flat table with data in form of categorized text or in discrete class. This algorithm has not yet explained about how is decision tree building mechanism in situation when the data are stored in relational tables. It also has not yet explained about the process of knowledge building when the data are in the form of number in continuous class. Meanwhile, the observed objects in this research, that is medical record data, are mostly stored in a complex relational database and have common form of categorized text, discrete number, continuous number and image. Therefore, the C4.5 is needed to be improved so it can handle decision building for cases database of medical record. Approach: We develop a knowledge building framework that can handle confidence level difference of cases in cases database. The framework we build also allows the data are stored in relational database. Moreover, our framework can process data in the form of categorized text, discrete number, continuous number and image. This framework is named CUC-C4.5, abbreviated from Complex Uncertain Case C4.5 as it is the improvement from C4.5 algorithm. Results: The CUC-C4.5 framework has been applied on the case of differential diagnosis knowledge building in a group decision support system to handle geriatric patient. This framework was implemented by using PHP and Javascript programming language and MySQL DBMS. Conclusion: The CUC-C4.5 can support differential diagnosis analysis on group decision support system for geriatric assessment.
  Sri Hartati and Imas S. Sitanggang
  Problem statement: Evaluating land suitability and selecting crops in modern agriculture is of critical importance to every organization. This is because the narrower area of land, the more effectiveness in planting is required in accordance with the desires of the land. Process of evaluating land suitability class and selecting plants in accordance with decision marker’s requirements is complex and unstructured. Approach: This study presented a fuzzy-based Decision Support System (DSS) for evaluating land suitability and selecting crops to be planted. A fuzzy rules was developed for evaluating land suitability and selecting the appropriate crops to be planted considering the decision maker’s requirements in crops selection with the efficient use of the powerful reasoning and explanation capabilities of DSS. The idea of letting the problem to be solved determines the method to be used was incorporated into the DSS development. Results: As a result, effective decisions can be made for land suitability evaluation and crop selection problem. An example was presented to demonstrate the applicability of the proposed DSS for solving the problem of evaluating land suitability and selecting crops in real world situations. Conclusion: Fuzzy based model can represent and manipulate agriculture knowledge that is incomplete or vague and it can be used to determine land limitation rating. The rating value was used to determine limitation level of the land and used to determine what the most suitable crops to cultivate for the existing condition of the land.
  Sri Hartati
  Background and Objective: Almost all of Coelogyne species from Indonesia are epiphytic. Some of these are facing the extincion and need to be conserved through plant breeding programs. Unfortunately, there are not many research reports on the genetic diversity of orchids which are substantial for genetic conservation and plant breeding program. The study aimed to identify the genetic diversity of some important species of genus Coelogyne spp., performed using inter simple sequence repeats (ISSR) molecular marker. Materials and Methods: The DNA of six orchid species from the genus of Coleogyne spp. was separated and served as samples in the PCR amplification reaction using 10 ISSR primers. Results: This study found that using six orchid species from the genus of Coelogyne spp. (C. pandurata, C. massangeana, C. mayeriana, C. asperata, C. celebensis and C. rumphii ), the ISSR primers yielded as many as 106 amplified fragments which varied in size from 250-3000 bp. Conclusion: Moreover, this study showed that the polymorphic amplification bands reached as high as 98.9% and the similarity coefficient of the six orchid species studied revolved between 0.32-0.70, meaning that the genetic diversity of the orchid species studied was spread out between 0.30-0.68.
  Melia Famiola , Sri Hartati and Amilia Wulansari
  This study explores the antecedent motivation of CSR engagement among Small and Medium Enterprises (SMEs) in Indonesia by using institutional and resources-based approach. Collecting data through interview and observation, this study found that SME engagement CSR is driven by normative aspect of owner’s belief and understanding the cultural tradition of Indonesia. It also indicate the organizational capability is not in place of their CSR decision making and seen that owner’s personal values are translated directly into corporate values.
 
 
 
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