Judul: Pemenuhan perkembangan tugas keluarga serta kepuasan pernikahan pada lansia laki-laki dan perempuan
Abstrak: Penelitian ini bertujuan mengidentifikasi perkembangan tugas keluarga serta kepuasan pernikahan lansia laki-laki dan perempuan. Desain penelitian yang digunakan adalah cross sectional study. Penelitian bertempat di Kecamatan Bogor Barat khususnya Kelurahan Pasir Jaya, Cilendek Barat, dan Menteng. Pengambilan contoh dilakukan secara purposive dengan kriteria berada pada masa lansia awal dan berstatus menikah. Responden yang terlibat berjumlah 62 orang dengan 31 orang berjenis kelamin laki-laki dan 31 orang berjenis kelamin perempuan. Penelitian ini menggunakan Kuesioner Perkembangan Tugas Keluarga Lansia dan Marital Satisfaction Questionnaire for Older Persons. Usia dan jumlah anggota keluarga berhubungan negatif dengan perkembangan tugas keluarga. Pendapatan keluarga berhubungan positif dengan perkembangan tugas keluarga. Responden laki-laki memiliki kepuasan pernikahan yang lebih tinggi dibandingkan perempuan. Variabel pola tempat tinggal dan perkembangan tugas keluarga mempengaruhi kepuasan pernikahan., The aim of this research was to analyze family developmental tasks and marital satisfaction of older persons. A cross sectional study was used as a design of this study. The research took place in District West Bogor, particularly in three Sub-Districts, those were Pasir Jaya, Cilendek Barat, dan Menteng. Participants in this research were taken purpossively by characteristics such as categorized as early elderly and married. The amount of participants in this research were 62, 31 male and 31 female. This research used Family Aging Couple Developmental Tasks Questionnaire and Marital Satisfaction Questionnaire for Older Persons. Age and amount of member’s family were negatively correlated with family developmental tasks. Family’s monthly income was positively correlated to family developmental tasks. Male participants had higher score of marital satisfaction than female participants. The pattern of the older persons live and family developmental tasks was influence towards marital satisfaction.
Keyword: kepuasan pernikahan, lansia awal, pensiunan, perkembangan tugas keluarga, pola tempat tinggal

Judul: Tugas Perkembangan Keluarga, Kepuasan Perkawinan, dan Kualitas Hidup Keluarga Lansia di Perdesaan dan Perkotaan
Abstrak: Kemajuan ilmu pengetahuan dan teknologi meningkatkan kemampuan hidup manusia yang lebih lama sehingga jumlah lansia dan masalah terkait dengan lansia semakin meningkat. Tujuan penelitian adalah menganalisis pengaruh pemenuhan tugas perkembangan keluarga dan kepuasan perkawinan terhadap kualitas hidup lansia yang berada di perdesaan dan di perkotaan. Desain studi yang digunakan adalah cross sectional study. Penelitian bertempat di Desa Leuwimekar (Kecamatan Leuwiliang) dan Kelurahan Empang (Kecamatan Bogor Selatan). Tugas perkembangan keluarga dan kepuasan perkawinan berhubungan positif. Pendapatan keluarga dan pendidikan suami berpengaruh positif terhadap perkembangan keluarga, sedangkan cacat fisik berpengaruh negatif terhadap tugas perkembangan keluarga. Tugas perkembangan keluarga dan kepuasan perkawinan berpengaruh positif terhadap kualitas hidup subyektif.
Keyword: kepuasan perkawinan, kualitas hidup lansia, tugas perkembangan keluarga

Judul: Adsorption Studies of Fe(III) Ion on Glutaraldehyde Cross-linked Chitosan and Its Application to Vetiver Oil Purification.
Abstrak: Adsorption of Fe(III) ions by glutaraldehyde cross-linked chitosan (Chitosan-GA) was studied by the batch method. The objectives of this research are to know optimum adsorption condition of Fe(III) ions by Chitosan-GA, then to study about isothermal adsorption, kinetics, and influence of Cu(II) ion for adsorption of Fe(III) ion and its application to vetiver oil. Optimum conditions are finding out by response surface Box Behnken method. The adsorption isotherm models that were studied in this research are Langmuir and Freundlich model. Percent adsorption of Fe(III) ion by glutaraldehyde cross-linked chitosan (Chitosan-GA) is about 91,8439% in optimum conditions : adsorbent weight 0,75 gram, temperature 25 o The existence of Cu(II) ions can decrease percent adsorption of Fe(III) ion by chitosan-GA. Percent adsorption of Fe(III) ion by chitosan-GA is higher than adsorption of Cu(II) ion in all conditions. Percent adsorption of Fe(III) and Cu(II) ion by chitosan-GA in vetiver oil is lower than other condition (solution of FeC, time contact 360 minutes. Adsorption process of Fe(III) ion by chitosan-GA is fit to Freundlich and second-order models. Adsorption process is exothermic and not spontaneous. Percent desorption of chitosan-GA-Fe by 0.1 M HCl is about 9.0605% and achieved in 150 minutes. 3+ and Cu2+ ion with its concentration ratio 1:1). Vetiver oil color was changed from dark brown to red brown after adsorption by chitosan- GA.
Keyword: cross-linked chitosan, glutaraldehyde, adsorption, Fe(III) ion