A secure data outsourcing scheme based on Asmuth – Bloom secret sharing

The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.Data outsourcing is an emerging paradigm for data management in which a database is provided as a service by third-party service providers. One of the major benefits of offering database as a service is to provide organisations, which are unable to purchase expensive hardware and software to host their databases, with efficient data storage accessible online at a cheap rate. Despite that, several issues of data confidentiality, integrity, availability and efficient indexing of users’ queries at the server side have to be addressed in the data outsourcing paradigm. Service providers have to guarantee that their clients’ data are secured against internal (insider) and external attacks. This paper briefly analyses the existing indexing schemes in data outsourcing and highlights their advantages and disadvantages. Then, this paper proposes a secure data outsourcing scheme based on Asmuth–Bloom secret sharing which tries to address the issues in data outsourcing such as data confidentiality, availability and order preservation for efficient indexing

Evaluasi Dimensi Instalasi Pengolahan Air Limbah Rumah Sakit Umum Daerahdokter Rubini Mempawah

Air limbah rumah sakit merupakan limbah yang bersifat infeksius, yang harus diolah dengan baik. Rumah Sakit dr. Rubini merupakan rumah sakit satu-satunya yang ada di Kota Mempawah. Rumah sakit ini memiliki IPAL yang dibangun pada tahun 2006, namun kualitas hasil olahan masih berada diatas ambang baku mutu berdasarkan KepMen LH No. Kep-58/MENLH/12/1995 sehingga perlu dilakukan evaluasi pada IPAL tersebut. Tujuan penelitian ini adalah mengetahui permasalahan yang ada di IPAL Rumah Sakit dr. Rubini Mempawah, mengevaluasi dimensi unit-unit pengolahan dan memberikan rekomendasi. Tahapan penelitian ini meliputi identifikasi masalah, pengumulan data, pengambilan sampel air limbah dengan metode grab sample, analisa data, evaluasi dan rencana perbaikan IPAL. Evaluasi dilakukan dengan metode perbandingan hasil perhitungan berdasarkan kriteria disain. Dari hasil evaluasi maka perlu dilakukan perancangan perbaikan untuk unit pengurai anaerob dan unit up flow filter karena berdasarkan hasil evaluasi dimensi kedua unit ini rasio dengan waktu detensi tidak memenuhi kriteria disain. Perancangan kembali unit pengurai anaerob dengan dimensi P = 3,5 m, L = 3,5 m, T = 3 m, dan unit up flow filter dengan dimensi P = 21,16 m, L = 4 m, T = 2 m. Dengan rancangan ini diharapkan hasil olahan memenuhi standar baku mutu yang telah ditetapkan

Predicting the minimum liquid surface tension activity of pseudomonads expressing biosurfactants

Bacteria produce a variety of biosurfactants capable of significantly reducing liquid (aqueous) surface tension (γ) with a range of biological roles and biotechnological uses. In order to determine the lowest achievable surface tension (γMin), we tested a diverse collection of Pseudomonas-like isolates from contaminated soil and activated sludge, and identified those expressing biosurfactants by drop-collapse assay. Liquid surface tension reducing ability was quantitatively determined by tensiometry, with 57 isolates found to significantly lower culture supernatant surface tensions to 24.5 – 49.1 mN m−1. Differences in biosurfactant behaviour determined by foaming, emulsion and oil-displacement assays, was also observed amongst isolates producing surface tensions of 25 – 27 mN m−1, suggesting that a range of structurally-diverse biosurfactants were being expressed. Individual distribution identification (IDI) analysis was used to identify the theoretical probability distribution that best fitted the surface tension data, which predicted a γMin of 24.24 mN m−1. This was in agreement with predictions based on earlier work of published mixed–bacterial spp. data, suggesting a fundamental limit to the ability of bacterial biosurfactants to reduce surface tensions in aqueous systems. This implies a biological restriction on the synthesis and export of these agents or a physical-chemical restriction on their functioning once produced

Future Prospects of 3D Human Chromosome Imaging by Serial Block Face Scanning Electron Microscopy

The higher order structure of human chromosomes remains to be elucidated with the 30 nm mystery still remaining. For internal structure determination, transmission electron microscopy (TEM) cannot be used as the chromosomes are too thick (approx. 1.4 microns) and scanning electron microscopy (SEM) is a surface imaging technique. For this purpose, the three-dimensional (3D) serial block face scanning electron microscopy (SBFSEM) was used on imaging mitotic human chromosome for the first time

Prevalence and antibiotic susceptibility of AmpC and ESBLs producing clinical isolates at a tertiary health care center in Kano, north-west Nigeria

The increase in production of Extended Spectrum Beta Lactamase (ESBL) and Amp C beta lactamase among clinical isolates in our hospitals is of utmost importance. Failure to detect these enzymes in many of our hospitals has greatly led to treatment failure and uncontrolled spread of multi drug resistant pathogens. It was for this purpose that the present study was conducted to determine the prevalence, distribution and susceptibility pattern of Gram negative bacteria producing ESBLs and Amp C beta lactamases in the largest tertiary health care provider in Kano, North-West Nigeria. A total of 75 ESBL and 10 AmpC producing bacteria were involved in the study which were obtained from a study involving 500 Gram negative clinical bacterial isolates from various hospital wards over a period of 9 months from Aminu Kano Teaching Hospital (AKTH), Kano, Nigeria. Isolates were screened for ESBLs and AmpC using Double Disc Diffusion Method and Amp C Disc test respectively. All confirmed ESBL and Amp C producing isolates were tested for susceptibility to sixteen (16) different antibiotics by the Disc Diffusion Method (DDM). The prevalence of ESBLs was high in Shigella spp. (1/2 or 50%), followed by Klebsiella pneumoniae (10/50 or /20%), and E. coli (47/247 or 19.3%) while Amp C producers were detected more in Klebsiella pneumoniae (4%) and E. coli (2.8%). Of the specimens screened, distribution varies between ESBL and AmpC producers, but more prevalent in urinary tract pathogens in both. Highest prevalence of ESBLs and AmpC producers was recorded in intensive care units and surgical wards. ESBL and AmpC production in the hospital is not sex dependent statistically, thought higher in males (52 and 60%) than in females (48 and 40%) for ESBL and AmpC respectively. ESBL and AmpC producers were both sensitive to Imipenem, Nitrofurantoin and Levofloxacin and resistance to Amoxycillin, Ceftazidime and Tetracycline. The study indicates the occurrence of ESBL and AmpC producers in our tertiary health provider, widely distributed in various clinical samples, wardsand sexes and are multi drug resistant posing serious threat in managing life threatening infections.Key words: prevalence, distribution, ESBL producers, Amp C producers, antibiotic susceptibilit

In-Vitro Studies on the Sensitivity of Staphylococcus aureus to Some Ethno-Medicinal Preparations Sold around Kano, Nigeria

Five traditional herbal preparations were sampled between May-June, 2009 in Kano. The samples were investigated for invitro antibacterial activities against clinical isolates of Staphylococcus aureus. Likewise, phytochemical screening tests were conducted to determine some of the phytochemicals present in the ethanolic and water extracts of the samples. Various concentrations of the extracts were prepared using serial doubling dilutions (5000=l/ml, 2500=g/ml, 1250=g/ml, 625=g/ml and 312.5=g/ml). All the test extracts showed slight antibacterial activity against the test organism, with ethanolic extract of sample E having the highest zone diameter of inhibition, while sample H had the lowest diameter of inhibition. The standard antibiotic disc (Gentamicin) had demonstrated the highest activity on the test organisms. The results of the Phytochemical screening revealed the presence of steroid in all the samples, tannin in samples A, C, D and E, reducing sugars in sample A, D and E respectively. The result of the minimum inhibitory concentration (MIC) was found to be above 312.5=g/ml for samples C, D and E. Keywords: Staphylococcus aureus, Herbal preparations, antibacterial activity, Phytochemical screening and minimum inhibitory concentration

Child Adoption Practices in the Bugis Community: Between Bugis Tradition and Ulama Views

This article reviews the tradition of adoption among Bugis people through the views of Bugis scholars and values of local wisdom. This research is a qualitative research using a content analysis approach. The study finds the fact that Bugis scholars have identified two forms of adoption practices. First, the practice of adoption as it is currently happening which change the nasab (lineage) so that it can inherit each other. Second, adoption practices that do not change the nasab. The first model is adoption that is prohibited in Islam in order to maintain the law and the descent according to the intentions of cultural values of paccing and sticking. The second model is allowed adoption. Such adoption practices are even encouraged if the motives are humanitarian motives and also in accordance with the values of the pesse culture (pacce), namely a deep sense of humanity and sibaliperri (mutual cooperation spirit)

Two-Frequency Jahn-Teller Systems in Circuit QED

We investigate the simulation of Jahn-Teller models with two non-degenerate vibrational modes using a circuit QED architecture. Typical Jahn-Teller systems are anisotropic and require at least a two-frequency description. The proposed simulator consists of two superconducting lumped-element resonators interacting with a common flux qubit in the ultrastrong coupling regime. We translate the circuit QED model of the system to a two-frequency Jahn-Teller Hamiltonian and calculate its energy eigenvalues and the emission spectrum of the cavities. It is shown that the system can be systematically tuned to an effective single mode Hamiltonian from the two-mode model by varying the coupling strength between the resonators. The flexibility in manipulating the parameters of the circuit QED simulator permits isolating the effective single frequency and pure two-frequency effects in the spectral response of Jahn-Teller systems.Comment: 8 pages, 4 figures, figures revise

Hubungan Lingkungan Rumah Dengan Kejadian Infeksi Saluran Pernapasan Akut (ISPA) Pada Masyarakat Pesisir Kelurahan Lapulu Kecamatan Abeli Tahun 2014

Acute Respiratory Infection (ARI) is a major cause of morbidity and mortality in children. ARI in Indonesia was ranked 6th in the world, reaching 6 million cases per year. One of factors that influence incidence of ARI is house environment. This study aimed to determine the relationship bertween house environment with acute respiratory infections (ARI) incidence in coastal communities in Lapulu Village, Subdistrict of Abeli 2014. This study is analytical observational with cross sectional study design. The sample size was 88 samples by applying proportional sampling technique. The independent variable were household crowding, natural ventilation, natural lighting, humidity, floor type, wall type and location of the kitchen. The data were analyzed by using chi-square test. The result at significance level α = 0,05 showed that there is relationship between household crowding (p-value = 0,000, CC = 0,415), natural ventilation (p-value=0,000, CC=0,394) , natural lighting (p-value= 0,001, CC= 0,330) , and humidity (p-value=0,015, CC= 0,250) with ARI incidence. Meanwhile, floor type (p-value=0,880, CC= 0,016), wall type (p-value=0,084, CC= 0,181), and location of the kitchen (p-value=0,582, CC= 0,059) does not show a relationship with ARI incidence. The conclusion that there are relationship between household crowding, natural ventilation, natural lighting and humidity with ARI incidence. In contrast, floor type, wall type, and location of the kitchen are not related with ARI incidence