Brushes of flexible, semiflexible and rodlike diblock polyampholytes: Molecular dynamics simulation and scaling analysis

Planar brushes of flexible, semiflexible and rodlike diblock polyampholytes are studied using molecular dynamics simulations and scaling analysis in a wide range of the grafting density. Simulations show linear dependence of the average thickness on the grafting density for all the brushes regardless of their different equilibrium conformations and different flexibility of anchored chains. Slopes of fitted lines to the average thickness of the brushes of semiflexible and rodlike polyampholytes versus the grafting density are approximately the same and differ considerably from that of the brush of flexible chains. The average thickness of the brush of diblock polyampholytes is also obtained as a function of the grafting density using a simple scaling analysis which is in good agreement with the results of our simulations.Comment: 5 Figure

Immunization of Children in a Rural Area of North Kashmir, India: A KAP Study.

Background: Knowledge, attitude and practices about immunization among mothers of children aged 1-2 years was assessed. Method: 300 mothers were administered a semi-structured questionnaire at PHC Hajan from 1st march to 1st may 2011 to elicit the information about the knowledge, attitude and practices of the mothers regarding immunization. Results: 100% of mothers knew that vaccination is beneficial and protects their children from diseases. 39% knew OPV protects from polio while only 1% were aware of protective role of BCG. All mothers knew about immunization in pregnancy but 86% were unaware about its preventive role. 26% mothers believed that 3 doses of T.T (tetanus toxoid) are to be given during pregnancy. Whereas 98% of children were completely immunized, 93% completed on schedule. Eighty percent of mothers reported of fever following DPT. All mothers had received tetanus toxoid during pregnancy. Conclusion: Considering mothers' poor knowledge and good attitude, health education on immunization is emphasized to improve their practices

Dampak Kompleksitas Teknologi Informasi Bagi Strategi dan Kelangsungan Bisnis

Teknologi Informasi (TI) yang berkembang sangat pesat telah memksa Perusahaan harus mengikuti perkembangan tersebut. Pengguna TI yang tidak direncanakan dengan baik akan berdapak pada kompleksitas TI bagi strategi dan kelangusan bisnis. Untuk itu, perencanaan sebagai bagian pertama dalam setiap perancangan sistem harus dilakukan dengan baik. Kompleksitas TI terjadi disebabkan banyaknya alternatif pilihan dalam pengaplikasian TI bagi Perusahaan. Sebagai alasan utama bagi Perusahaan untuk menggunakan TI adalah untuk memenangkan persaingan dan mendatangkan keunggulan kompetitif (Kettinger et asl., 1994), namun jika penggunaan TI tidak dibarengi dengan kesiapan organisasi untuk mengaplikasikan TI, maka tujuan yang ingin diharapkan akan jauh melenceng

Stock assessment and maximum sustainable yield of common kilka (Clupeonella cultriventris Borodin, 1904) in Iranian waters of the Caspian Sea

The main objectives of the present study were to estimate of biomass during 1997-2014 and maximum sustainable yield of common kilka Clupeonella cultriventris Borodin, 1904 in 2013 in Iranian waters of the Caspian Sea. This paper examines the maximum sustainable yield (MSY) and fishing intensity at MSY (fMSY) and then using fMSY, yield-per-recruit and spawning biomass-per-recruit under various harvest strategies of Fmax, F0.1 and F40%; the acceptable biological catch (ABC) was estimated. During 1997-2014, the biomass of common kilka was increased from 22000 in 1997 to 112000 t in 2009 then declined to 83300 in 2013. In the period, the instantaneous coefficient of fishing mortality varied between 0.246/yr to 1.640/yr and the exploration rates were 0.327 and 0.764. The reference points of common kilka at F0.1 and F40% were estimated 0.92 and 0.80 year−1 , respectively. According to Schafer model the MSY and fMSY were estimated 22670 t and 8690 vessel×nights (a unit of effort). During 2013, the ABC of common kilka was estimated 17500, 20060, 23500 and 18900 t in tiers 2, 3, 4 and 5, respectively. However, for the implementation of a precautionary management approach the lower and more accurate ABC-value, based on more information, should be selected and thus the catch should be restricted to 17500 t

Investigation on spawning season, fecundity rate and length at maturity Lm_(50) of common kilka, Clupeonella cultriventris, in Mazandaran Province coastal waters

The spawning season, fecundity rate, male to female ratio and Lm _ (50) of the Caspian Sea common kilka (Clupeonella cultriventris) were investigated during March 2005 to February 2006 in the coastal waters of Mazandaran province. The mean fork length and the weight of ovary females were 99.47 ±9.8mm and 8.3 ±2.0g respectively. The sex ratio was 2:1 in which females were dominant. The common kilka spawning started from January and its peak occurred in May. The mean gonadosomatic index was 2.1 ±6.0mm and its maximum was estimated at 0.28 and 8.9 respectively with its highest recorded in May. The condition factor was calculated at 1.5 ±0.12. More than 50 percent of the fish specimens matured when their length exceeded 94.17mm

Pengaruh Corporate Governance Dan Leverage Terhadap Tax Avoidance Pada Perusahaan Manufaktur Yang Terdaftar Di Bursa Efek Indonesia (Bei) Tahun 2011-2015

The purpose of this study was to examine the influence of institutional ownership, board of directors, audit quality, audit committee, and leverage against tax avoidance. The population in this research is manufacturing companies listed in Indonesia Stock Exchange during 2011 to 2015 with the number of 132 companies. The samples were selected in the study using purposive sampling method. Testing the influence of institutional ownership, board of directors, audit quality, audit committee, and leverage against tax avoidance measures. Research analysis using multiple linear regression with SPSS 20.0. The results showed there were 46 companies meeting the targets set out in the study population. Based on the test results of multiple linear analysis with a significance level of 35.8%, the results of this study concluded that: (1) institutional ownership effect on tax avoidance (2) commissioners effect on tax avoidance (3) The tax effect on audit quality avoidance (4) audit committee influence on tax avoidance (5) the leverage effect on tax avoidance

Analisis Perhitungan Harga Pokok Produksi Dengan Penerapan Metode Full Costing Pada UMKM Kota Banda Aceh

Calculation and acquisition cost of production is strongly Influenced by the application of the method right, so the cost of production is obtained to indicate the actual value occurs. This study conducted on Banda Aceh micro, small and medium enterprises, especially processing businesses of tofu. The purpose of this study is to analyze the production cost price calculation and allocation of costs applied by Banda Aceh micro, small and medium enterprises with the calculation the cost of production using the full costing method. The type of data used in this study is qualitative data which presented in a descriptive or shape description, and quantitative data is presented in the numbers. Sources of data derived from primary data results of interviews conducted with business owners tofu in Banda Aceh, and secondary data obtained from the literature review and other literature that supports the writing of this study. The results indicate that the acquisition cost of production using the full costing method is better in analyzing production costs, its caused the calculation cost of production using the full costing method has included all overhead costs, both fixed and variable during the production process.Keywords— Cost of Production, Full Costing, Process Cos

Analisis Break Even Point sebagai Dasar Pengambilan Keputusan Penetapan Harga Jual pada USAha Kecil dan Menengah (UKM) di Kota Banda Aceh

The purpose of this research is to analyse the break even point on selling price determination, to know the difference of selling price between the one which is stated by SMEs in trading sector in Banda Aceh and the one which is the result of break even point analysis, and also to know the correlation between the break even point and selling price. Type of this research is statistical descriptive analysis. Population in this research are SMEs listed in Dinas Perindustrian, Perdagangan, Koperasi, dan UKM in Banda Aceh. Based on certain criterias, there are 30 SMEs as the samples of the research. This research shows that there is a difference betweet the rate of selling price determined by the SMEs and break even point analysis result. Based on correlation test, there is positive significant correlation between selling price and break even point

Analisis Penerapan Metode Variable Costing Dalam Menentukan Harga Pokok Produksi Pada UKM Di Banda Aceh

Cost of production is a collection of the costs incurred to process raw materials into finished goods. The study is aimed to know how calculation of the cost of production in the home furnishings industry UKM using variable costing method. the sample of this study as many as 10 SMEs (Annex 3) with Characteristic which produce two-door closet and a dining table laminating a size of 120 x 90 x 75 cm. The method used is descriptive analysis method, which is just to explain or deskriptive how determine Cost of production with ude the Variable Costing of UKM in the industrial sector of building materials for home furnishings in Banda Aceh especially for produce two-door closet and a dining table laminating a size of 120 x 90 x 75 cm. The study states that the calculation of the cost of production is generating significant differences that affect the determination of the selling price. To that end, the company should separate the costs of production and non-production costs and further optimize its production activities so as to produce the exact cost of production at a low cost, order that the company can earn a maximum profit

Investigation of the Effect of Modeling of Control Tunnel in Retaining Structure of J2 Station of Mashhad Metro Using Plaxis 2D

Nowadays using of underground concrete arch excavation method is very common for execution of retaining structures (soldier structure) of deep and semi deep metro stations all around the world. In this method executer can use retaining structure as a part of main structure of station in next construction steps with using of piles of retaining structure as a part of main structure\u27s wall. One of the first steps in building retaining structure of metro station is control tunnel (patrol tunnel) that usually is a prefabricated controlling tunnel in the middle of retaining structure. This tunnel is used for digging bores for concrete piles and arches of retaining structure and will be removed at the end of excavation process. Usually designers don\u27t consider this tunnel in modeling of whole retaining structures in numerical modeling in computer programs like PLAXIS. We have done 2 different modeling of retaining structure of J2 station in Mashhad metro (with and without control tunnel) for considering of the impact of modeling of control tunnel on stresses, deflections, axial forces, bending moments, etc of the model using PLAXIS 8.5 2D. Results and differences between these two kinds of modeling showed that neglecting the patrol tunnel in analyses can cause important reductions in forces and moments of piles and ribs of the retaining structure