| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Penelitian Sains dan Teknologi |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 261-272 |
| Abstraksi Narasi | : | In this research was carried out synthesis on high Tc superconductor Bi1, 8Pb0, 4Sr2CaCu2O10+x phase which grown by solid state reaction using wet mixing preparation. One of the novel properties of high Tc Superconductors is layered in its crystal structure, causing such as large anisotropy. The anisotropy parameter makes it possible to directly measure a single crystal sample. There were severe problems in growing a single crystal sample. Therefore analysis of fenomenology theory is required. In terms of ``Crossover Dimensional" which extended Aslamazov-Larkin theory, it has been estimated anisotropy parameter of Bi1, 8Pb0, 4Sr2CaCu2O10+x superconductors. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Penelitian Sains dan Teknologi |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 76-80 |
| Abstraksi Narasi | : | The in vitro study was designed to identify differentiation processes in neural crest cells originating from different levels along the anterior/posterior axis in wild type axolotl, Ambystoma mexicanum. Under minimal culture conditions cell populations from the posterior region of the crest give rise to more melanophores than other axial regions. This data indicate that there are region-dependent differentiation of pigment cells from axolotl neural crest. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Penelitian Sains dan Teknologi |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 20-24 |
| Abstraksi Narasi | : | Fermentation of durian fruit by salt addition at 5% (w/w) caused organic acids formation by microbes. The organic acids formation were determinated by chromatography technic (HPLC). The results of research showed that product of durian fruit fermentation (Tempoyak) were dominated by butyric acid 6,7% (v/w), lactic acid 1,6% (v/w), acetic acid 0,3% (v/w). The other organic acid the amounth were less than 0,01% (v/w). |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Penelitian Sains dan Teknologi |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 63-68 |
| Abstraksi Narasi | : | The experiment was carried out to characterize antibacterial substance which product by earthworm of Allolobophora rosea. This experiment was conducted at IPB Biochemistry Laboratory and General Bacteriology laboratory of Balitvet, Bogor. The antibacterial substance from earthworm of Allolobophora rosea could inhibit the growth of Gram positive bacteria (Bacillus cereus, B. thernophilus, Staphylococcus aureus and S. epidermidis) but not inhibit Gram negative bacteria (Salmonella typhi, Escherichia coli, and Pseudomonas aeroginosa). The antibacterial substance were glucopeptide. The TLC analysis showed that the antibacterial substance produced by earthworm of Allolobophora rosea had a fraction active on Rf 0.72. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Penelitian Sains dan Teknologi |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 148-157 |
| Abstraksi Narasi | : | The role of Calcium (Ca^2+) in physiological disorders of tomato fruit is still controversial. Several experiments showed different and inconsistency results. These might be caused by different dosages of application, method of application, environment, and varieties as well. An experiment to investigate the influence of CaCO3 on the incidence of blossom-end rot of tomato fruit was conduted from October 1998 to March 1999 in greenhouse of College of Agriculture, University of Lampung. The experiment was arranged factorially in a completely randomized block design with three replications. Four levels of CaCO3 (0,1,2, and 3 ton/ha) were applied into three tomato varieties (`Local`, `Ratna`, and `Spirit 385`). Results showed that the influence of CaCO3 application as additional Ca^2+ supply through soil depended on varietes as revealed by variables such as fruit weght, fruit diameter, and the incidence of blossom-end rot. Additional Ca^2+ reduced the incidence of blossom-end rot of variety `Ratna`, but not `Local` and Spirit 385`. There were also significant differences among varieties in the incidence level of catface and fruit cracking, in which variety `Local` was more susceptible than the others. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Penelitian Sains dan Teknologi |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 7-14 |
| Abstraksi Narasi | : | The increasing of corn production can be obtained by using of highly yield variety. Preliminary test of 16 corn genotipes was evaluated at dry season and wet season, start from Agustus 1997 until April 1998 located at Natar experimental farm, Sidomulyo distric, Shouth Lampung. The experiments were arranged in a randomized block design with four replications, plot size 1,5 m x 5 m, and plant spacing 20 cm x 75 cm. Fertilizers applied were 300 kg urea + 200 kg TSP + 100 kg KCi/ha. The result showed that the segregated between varieties x season and segragated to yield component, indicating different response to season among the taste lines, plant high, maturity, total plant and dry weight of grain component are more influence to yield. Genotipe STJ 9610 at dry season to yield corn 6,417 t/ha and wet season STJ 9613. STJ 9632 to yield 8,235 t/ha. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Penelitian Sains dan Teknologi |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 335-343 |
| Abstraksi Narasi | : | The effects of Tegetes erecta root extract on the nutrition indices of Spodoptera exigua larvae has been investigated. Nutrition indices were observed by giving fourth-instar larvae one of the four diets, every group of diet was added various concentration of root extract, containing either 0.20, 0.40, 0.80, or 1.60%. The result showed that, the growth and efficiencies of food use were significantly lower in the case of treated larvae than teuose of the controls. Larvae fed with diet treated had significantly higher Approximate Digestibility (AD) values as compared to the controls. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Penelitian Sains dan Teknologi |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 148-153 |
| Abstraksi Narasi | : | Molecular characterization of the pattern of gene in some diseases evokes scientists to keep study and develop the gene therapy techniques to control and to repair gene in that diseases. One of the techniques is gene transfer through receptors. The technique was performed by transfering DNA into the target nucleus by binding and interlnalization of the ligand by the membran receptors. This article of gene transfer through receptors. This is including the materials that used, preparing the DNA ligand-eomplex, and discussing the factors that affected in transfering until expressing of trans-genes inside the cells. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Penelitian Sains dan Teknologi |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 208-211 |
| Abstraksi Narasi | : | The research of the influence by existence of Lindamin herbidic to the alternate population of spore forming bacteria in ertile soil has been carried out. The research has been arrauged in Complete by Randomized Design. The treatments, consist of four different concentration of herbidic supplied, namely 0,4 ml (as much as producer suggested dosage), 0,2 ml, 0,6 ml, and 0,8 ml for each Petri dish contain 100 grams fertile soil, and without herbicide as control treatment. This design with 3 replications. The dishes were treated in incubator at the 27 degree C for 24 hours. The result of this research show that there is no significant difference between herbicide application as much as suggested dosage or more, and no herbicide treatment, but there is no significant difference between no herbicide application and the herbicide below the suggested dosage. There is no significant difference among the four grades concentration of herbicide supplied. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Penelitian Sains dan Teknologi |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 246-250 |
| Abstraksi Narasi | : | Pepper is one of export commodities which has an important role to support income of the country. Generally every mode on tendrils is a potential portion of stem where leaves and fruiting branches arise. In fact that modes of pepper close not produce fruiting brunches, even four up to six modes of it without fruiting-branch. The results of experiments showed that inducing branch could be clone by pruning. The best pruning of there pepper-varieties was to allow seven leaves still growing on the tendrils. |
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