Pengaruh Rubbing Terhadap Kondisi Getaran Mesin Rotasi

Pada penelitian ini, getaran pada rumah bearing yang diakibatkan gesekan rotor (rubbing) dikaji dengan mengaplikasikan seperangkat alat gesekan rotor (mechanical rub kit) pada simulator kerusakan mesin (machinery fault simulator). Pengaruh gesekan penuh (full annular rub) pada sistem mesin rotasi dengan mempertimbangkan perbedaan material gesek dan kecepatan rotasi poros dikaji secara eksperimen. Eksperimen dilakukan dengan menggunakan tiga variasi material gesek yaitu alumunium, akrilik dan karet. Kemudian untuk variasi kecepatan rotasinya menggunakan 1000 rpm, 2000 rpm dan 3000 rpm. Getaran dari hasil gesekan poros pada rumah bearing di analisa. Hasil menunjukkan bahwa amplitudo getaran pada rumah bearing meningkat secara signifikan diikuti dengan kecepatan rotasi yang meningkat. Spektrum untuk material gesek lunak memiliki karakteristik unik, jadi bahwa tingkat getaran pada material lunak lebih rendah daripada getaran tanpa gesekan (baseline

Dampak Pemekaran Desa terhadap Kesatuan Hukum Adat (Studi Kasus Pemekaran Desa Sibiruang Menjadi Desa Bandur Picak Kecamatan Koto Kampar Hulu Kabupaten Kampar)

Governance Management mounted by Countryside of Bandur Picak of District of Koto of Pate;Upstream Camphor generate various polemic in management of countryside governance, specially Countryside of Bandur Picak, where countryside management during the time namely countryside of mains of Countryside Sibiruang cannot be locked out of a concept " String of Bapilin Tigo or Tigo of Stove Sajarangan" with the meaning activity management in countryside very relate to the institute of exist in countryside namely, Countryside Governance, Ninik Mamak (leader of tribes) and Moslem intelectual. Target of research is to know and explain the impact of pemekaran countryside to unity of Customary Law in Countryside of Sibiruang and Countryside of Bandur Picak of District of Koto of Pate;Upstream Camphor, and description of about effort is solving of the problem of unity customary law in Countryside of Sibiruang and Countryside of Bandur Picak of District of Koto of Pate;Upstream Camphor. Analyse the data of performed within this research is data analysis qualitative. Target of research is to know and explain the impact of pemekaran countryside to unity of Customary Law in Countryside of Sibiruang and Countryside of Bandur Picak of District of Koto of Pate;Upstream Camphor, and description of about effort is solving of the problem of unity customary law in Countryside of Sibiruang and Countryside of Bandur Picak of District of Koto of Pate;Upstream Camphor. Analyse the data of performed within this research is data analysis qualitative. Affect the breaking countryside to unity of Customary Law in Countryside of Sibiruang and Countryside of Bandur Picak of District of knowable Koto Pate;Upstream Camphor namely, Breaking of Countryside of Countryside of Bandur Picak of District of Koto of Pate;Upstream Camphor from its mains countryside is Countryside Sibiruang generate the polemic in execution of values and unity [of] customary law of exist in both the countryside. Both the countryside difficult cut loose from customary law unity is woke up by since of old. Before formed by Countryside of Bandur Picak of District of Koto of Pate;Upstream Camphor, unity of customary law well-held orderlyly is fluent without existence of various problem that happened. But after happened by the break, unity of customary law still coalesce namely Custom Sprout in Countryside of Bandur Picak of District of Koto of Pate;Upstream Camphor, while sprout Syara (religion) in Countryside Sibiruang. Affect the breaking countryside to unity of Customary Law in Countryside of Sibiruang and Countryside of Bandur Picak of District of knowable Koto Pate;Upstream Camphor namely, Breaking of Countryside of Countryside of Bandur Picak of District of Koto of Pate;Upstream Camphor from its mains countryside is Countryside Sibiruang generate the polemic in execution of values and unity [of] customary law of exist in both the countryside. Both the countryside difficult cut loose from customary law unity is woke up by since of old. Before formed by Countryside of Bandur Picak of District of Koto of Pate;Upstream Camphor, unity of customary law well-held orderlyly is fluent without existence of various problem that happened. But after happened by the break, unity of customary law still coalesce namely Custom Sprout in Countryside of Bandur Picak of District of Koto of Pate;Upstream Camphor, while sprout Syara (religion) in Countryside Sibiruang. Keyword : Village Expansion, Regional Autonomy, and Common Law Keyword : Village Expansion, Regional Autonomy, and Common La

Preserving Privacy of High-Dimensional Data by l-Diverse Constrained Slicing

In the modern world of digitalization, data growth, aggregation and sharing have escalated drastically. Users share huge amounts of data due to the widespread adoption of Internet-of-things (IoT) and cloud-based smart devices. Such data could have confidential attributes about various individuals. Therefore, privacy preservation has become an important concern. Many privacy-preserving data publication models have been proposed to ensure data sharing without privacy disclosures. However, publishing high-dimensional data with sufficient privacy is still a challenging task and very little focus has been given to propound optimal privacy solutions for high-dimensional data. In this paper, we propose a novel privacy-preserving model to anonymize high-dimensional data (prone to various privacy attacks including probabilistic, skewness, and gender-specific). Our proposed model is a combination of l-diversity along with constrained slicing and vertical division. The proposed model can protect the above-stated attacks with minimal information loss. The extensive experiments on real-world datasets advocate the outperformance of our proposed model among its counterparts

Profil Pasien Tb-hiv dan Non Tb-hiv di Rscm

Tuberculosis (TB) is the most common opportunistic infection and cause of death in patients with Human Immunodeficiency Virus (HIV) in developing countries. TB-HIV cases showed an increase in recent years. There has been no report on TB-HIV patient profiles in RSCM. The purpose of this study was to obtain data an demographic, clinical, laboratory, and radiological TB-HIV patients. This study was a descriptive cross-sectional study design to document medical records of HIV-TB patients who came for treatment to the Pokdisus RSCM between July 2008-December 2010. A number of 522 patients consisted of 424 males (81.2%) and 98 females (18.8%), with a mean age of 31.92 years, the majority in the age group 18-40 years (90.8), 53.1% married, tribal Betawi 28.4%, and 64.2% graduated from high school. The proportion of injecting drug transmission (56.5%). Concomitant infection is hepatitis C infection (42.9%) and oral candidiasis (26.4%). Chronic cough is the most clinical manifestation (67.5%), followed by prolonged fever (57.5%) and weight loss (50.4%). Patients with sputum smear-negative (36.2%), CD4 <200 (78.0%) and chest X-ray finding of TB (32.8%).Keywords : tuberculosis, hiv.AbstrakTuberkulosis (TB) merupakan infeksi oportunistik terbanyak dan penyebab kematian utama pada pasien Human Immunodeficiency Virus (HIV) di negara berkembang. Kasus TB-HIV menunjukkan kenaikan dalam beberapa tahun terakhir. Belum ada laporan mengenai profil pasien TB-HIV di RSCM. Tujuan penelitian ini adalah untuk mendapatkan data demografi, klinis, laboratoris, dan radiologis pasien TB-HIV. Penelitian ini merupakan rancangan studi potong lintang deskriptif dengan menelusuri rekam medik pasien TB-HIV yang datang berobat ke Kelompok Studi Khusus (Pokdisus) RSCM antara bulan Juli 2008-Desember 2010. Sejumlah 522 penderita yang terdiri dari 424 laki-laki (81,2%) dan 98 wanita (18,8%), dengan usia rerata 31,92 tahun, mayoritas pada kelompok usia 18-40 tahun (90.8), sudah kawin 53.1%, suku Betawi 28,4%, dan tamat SMA 64,2%. Proporsi transmisi narkoba suntik (56,5%). Infeksi penyerta adalah infeksi hepatitis C (42,9%) dan kandidiasis oral (26,4%). Batuk kronik merupakan manifestasi klinik terbanyak (67,5%), diikuti dengan demam lama (57,5%) dan berat badan turun (50,4%). Pasien dengan sputum BTA negatif (36,2%), CD4 <200 (78,0%) dan gambaran TB pada foto toraks (32,8%).Kata kunci : tuberculosis, hiv

Eicosapentaenoic Acid (EPA) from Fish Oil and Margarine as Bioactive Compound for Anti-inflammation in Occupational Dermatitis

Occupational dermatitis (OCD) is a skin inflammatory disease caused by allergens and irritant agents in the workplace. The disease is related to hypersensitivity reaction, which is correlated with an immunological mechanism (allergic contact dermatitis) and a nonimmunological mechanism (irritant contact dermatitis). Patients with atopic history (rhinitis allergy, asthma, and atopic dermatitis) have a higher risk of contracting OCD. Atopic individuals suffer from barrier skin damage that increases the risk of allergen and irritant penetration. Inflammatory reaction involves T-helper 1 (Th1), which produces cytokine tumor necrosis factor alpha (TNF-α) and interferon-γ (INF-γ), while T-helper 2 (Th2) produces interleukin (IL-4, IL-6, IL-8, IL-10). Eicosapentaenoic acid (EPA) is an omega-3 substance from polyunsaturated free fatty acids (PUFAs)that has been shown to have an anti-inflammatory effect and the ability to decrease macrophage accumulation. In the inflammatory process, EPA inhibits IL-6, IL-8, and TNF-α, which are mediated by the free fatty acid-binding proteins (FABPs). The aim of this study was to determine the bioactivity compound of EPA for anti-inflammatory agents and its target, based on in silico screening. The bioinformatic tools based on reverse docking used in this study were the PubChem compound database, the protein target prediction database, PharmMapper, SwissTargetPrediction, molecular docking software PyRx 0.8, ligand docking, and binding site analysis using PyMOL software. Docking and binding site analysis showed that EPA was able to interact withFABPs, with the binding affinity of EPA with FABP 4 higher (–4.2 kcal/mol) than that of hydrocortisone with FABP 4 (–7.4 kcal/mol). EPA has the same binding site and relative bonding power as the FABPs; thus, it has potential as an alternative anti-inflammatory medicine in OCD. Keywords: occupational dermatitis, eicosapentaenoic acid (EPA), free fatty acid binding proteins (FABPs), reverse dockin

Josephson-phase qubit without tunneling

We show that a complete set of one-bit gates can be realized by coupling the two logical states of a phase qubit to a third level (at higher energy) using microwave pulses. Thus, one can achieve coherent control without invoking any tunneling between the qubit levels. We propose two implementations, using rf-SQUIDs and d-wave Josephson junctions.Comment: REVTeX4, 4pp., 6 EPS figure files; N.B.: "Alec" is my first, and "Maassen van den Brink" my family name. v2: gate universality fleshed out, small fix in d-wave decoherence para, discussion expanded, two Refs. added. v3: some more Refs., a molecular example, and a few minor fixes; final, to appear in PRB Rapid

Analysis of Bird Diversity for Supporting Ecotourism Development in Rajegwesi, Meru Betiri National Park

Potential ecotourism attraction in Rajegwesi Village, Meru Betiri National Park is high due to its high biodiversity, especially bird diversity, in the form of bird watching activity. This study was aimed to determine the species, level of abundance, and diversity of birds found in the Rajegwesi area. Further, this basic information is important to develop the bird watching track at Rajegwesi. We used Quantum-GIS to create the land classification and observation mapping. Bird observation used point count method in the morning and evening with three periods of hour and three repetitions. The study confirmed about 76 species of 39 bird families was found in Rajegwesi. The highest abundance was Pygnonotus goiavier (E:Yellow-vented Bulbul), at the meadows, village, and rehabilitation land. The diversity index showed that the highest diversity was found at the heterogeneous forest (H index 3.745), followed by homogenous forest (H index 3.150), rehabilitation land (H index 2.845), village (H index 2.693), paddy fields (H index 2.529), and savanna (H index 1.880). The observation track was divided into 3 lines based on the birds distribution, the Village Rehabilitation Land track (6.5 Km), Village track (2.3 Km), and Village Rafflessia Park track (7.5 Km). Total of 25 bird species were found at the Village Rehabilitation Land track, 22 species were found at the Village track, and 29 bird species were found at the Village Rafflessia Park track. For the future of ecotourism development through birding development program, there are several issues that should be promoted: promoting birds conservation in the community through bird watching and birds observation competition (Bird race), training on conservation and ecotourism for the community, and strengthening the capacity and capability of Rajegwesi Ecotourism Society (RES) on the ecotourism program management. Keywords: bird watching, conservation, ecotourism development, RE

Antimicrobial, Cytotoxic and Phytotoxic Potency of Ethyl Acetate Extract of Rhizopus stolonifer Culture

Purpose: To evaluate the antimicrobial, cytotoxic and phytotoxic activities of the organic extract of Rhizopus stolonifer whole cell static culture in order to determine the presence of potentially bioactive compounds in the culture.Methods: The organic extract was obtained by extracting the whole cell culture of R. stolonifer with Ethyl Acetate (EtOAc). The antifungal activity was determined by inhibitory effect on the growth of Alternaria alternate, Aspergillus flavus, Curvularia protuberata and Fusarium oxysporum, cytotoxic activity by brine shrimp lethality test, antibacterial activity against Ervinia carotovora and Xanthomonas campestris by disc diffusion technique, and phytotoxic activity by testing the crude extract against theLemna minor frond.Results: The extract showed phytotoxic activity (at 95% level of  significance) against Lemna minor (67.7 % lethality) with Fronds Inhibition (FI50) of 167.85 ìg mL-1. The extract exhibited a significant (at 95% level of significance) cytotoxic activity (LC50 of 115.71 ìg mL-1) against brine shrimp. Maximum mortality (56.7 %) was obtained at a concentration of 200 ìg mL-1 concentration after 48 h. In the antifungal test, the highest inhibitory effect was observed against Fusarium oxysporum (88.8 %)followed by Alternaria alternata (81.5 %), Aspergillus flavus (70.5 %) and Curvularia protuberata (37.5 %) at 1000 ìg. mL-1 when compared to negative reference. Antibacterial activity against Ervinia carotovora and Xanthomonas campestris was minimal even at extract level of 2000 ìg mL-1.Conclusion: The ethyl acetate extract of R. stolonifer possesses significant herbicidal, cytotoxic and antifungal properties. Isolation and  characterization is required for structural elucidation of its bioactivecompounds.Keywords: Rhizopus stolonifer, Antifungal, Antibacterial, Phytotoxicity, Cytotoxicity

Spatial and Temporal Distribution of Natural Enemies Visiting Refugia in a Paddy Field Area in Malang

Human activities in seeking agricultural lands, has change the traditional agricultural system into intensive cultivation system. One effort to minimize intensive agriculture system is the use of natural enemies to control pests. Habitat management should be implemented by creating habitat favored by natural enemies. This research aims to determine the spatial and temporal distribution of natural enemies of wild plants: Mimosa pudica, Vernonia cinera, Marsilea crenata, and Pistia startiotes on agricultural land. This research was conducted in March-April 2010 in Malang Sawojajar farmland. Plants placed in the corner field (refugia areas), visiting insects was observed starting from refugia areas and two meters away from the refugia area. Observations of insect use the "visual control" metode. The results showed that natural enemies visiting to the refugia areas were 6 orders (15 families): Coleoptera, Odonata, Aaraneae, Hymenoptera, Diptera, and Orthoptera. Not all natural enemies have spatial and temporal distribution, only 9 families who indicate a pattern spatial or and temporal distribution. Overall, natural enemies do not show any significant spatial pattern (F> 0.05), but indicate a temporal pattern (