POLA SOSIALISASI PERGURUAN TINGGI DALAM MENINGKATKAN JUMLAH PENERIMAAN MAHASISWA BARU PADA IAIN PALU

This article discusses the effectiveness of the new student admission socialization program on the decision of the prospective student to enroll in the State Islamic Institute (IAIN) Palu. The problem studied is How are the efforts of socialization of new student admissions applied at IAIN Palu? What is the most effective socialization attempt for student candidate's admission at IAIN Palu? This research uses survey research design combined with descriptive qualitative analysis model. Data collection using questionnaire method supported by interview and collecting a documentations. The results showed that the socialization efforts applied in IAIN Palu was by utilizing mass media and school visit. An effective efforts of socialization for introducing institutions to the public is unprogrammed in schedules, they used word to word (door to door) and publicity promotion. Nevertheless, regular programmed socialization models are held regularly every day before the admission of new students, usually used advertising and “personal selling” through visits to schools, is still quite effective. While the main consideration factor for enrolling in IAIN Palu is the availability of courses appropriate to their interests.

Synthesis and Characterization of Heteroleptic Copper Complexes: As Prospective Antimicrobial, Cytotoxic and Antioxidative Agents

Copper(I) halide complexes with N,Nʹ-disubstituted thioureas and triphenylphosphine have been synthesized by the reaction of halotris(triphenylphosphine)copper(I) and respective thioureas (121) at 60 °C. The newly synthesized complexes were fully characterized by various instrumental techniques like FT-IR, multinuclear (1H, 13C, 19F, 31P) NMR spectroscopy while elemental analyses were carried out using a CHNS analyzer and atomic absorption spectroscopy. Some of the copper(I)-N,Nʹ-disubstituted thiourea complexes (A3, A7, A9, A16, B1, B3, B4, B6, B13, B14, B18, B19, C1, C3, C8, C9, C10, C12, C14, and C15) were analyzed via single crystal XRD for structural elucidation. From single crystal XRD it has been identified that copper(I) adopted distorted tetrahedral geometry in coordination with sulphur (substituted thiourea), two phosphorus (triphenylphosphine) and halogen. Most of the complexes were stabilized by intramolecular hydrogen bonding. The synthesized complexes were screened for cytotoxicity (Brine shrimp), antibacterial, antifungal, antileishmanial, antioxidant and DNA binding studies. In Brine shrimp lethality assay complexes B17 and B11 were the most active with LC50 of 19.6 µg mL–1 and 20.1 µg mL–1, respectively. In case of antibacterial activities, in the chlorinated series (A), the most active complex against E. Aerogens was A15, against B. Bronchiseptaca it was A12 and against S. Typhimurium were A9 and A3 with ZOI value comparable to that of the reference commercial drug. Similarly, in the iodinated series (C), the most active complex against B. Bronchiseptaca was C13 and against S. Typhimurium it was C9 with ZOI values of 20±1.46 and 19±1.27 mm, respectively. Against A. fumagatus(Fungi) the most active complex was B14 with a ZOI value of 19.5±1.46 mm which was comparable to that of the reference value. In Leishmanicidal activity all the test samples were active against L. tropica with LC50 values in the range of 20 to 50 µg mL–1. In the assay of DPPH Free-Radical Scavenging, all the test samples were significantly active toward DPPH and the antioxidant activity of the complexes was found within the range of 54.96-62.67%. From UV-vis spectroscopy and molecular docking studies it has also been observed that copper(I) tetrahedral complexes interact strongly with the DNA via a groove binding mode. From molecular docking the highest value of Kb was found to be 1.08×105 for A12 which is attributed to the intra-strand cross linking of benzo[d]thiazol-2-yl of thiourea in the complex with DA17 and DT6 base pairs of DNA in addition to groove binding interactions.