Improvement of Paper Resistance against Moisture and Oil by Coating with Poly(-3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and Polycaprolactone (PCL)

Surface hydrophobicity and grease resistance of paper may be achieved by the application of coatings usually derived from fossil-oil resources. However, poor recyclability and environmental concerns on generated waste has increased interest in the study of alternative paper coatings. This work focuses on the study of the performances offered by two different biopolymers, poly(3-hydroxybutyrate-co-3hydroxyvalerate) (PHBV) and polycaprolactone (PCL), also assessing the effect of a plasticizer (PEG) when used as paper coatings. The coated samples were characterized for the structural (by scanning electron microscopy, SEM), diffusive (water vapor and grease barrier properties), and surface properties (affinity for water and oil, by contact angle measurements). Samples of polyethylene-coated and fluorinated paper were used as commercial reference. WVTR of coated samples generally decreased and PHBV and PCL coatings with PEG at 20% showed interesting low wettability, as inferred from the water contact angles. Samples coated with PCL also showed increased grease resistance in comparison with plain paper. This work, within the limits of its lab-scale, offers interesting insights for future research lines toward the development of cellulose-based food contact materials that are fully recyclable and compostable.

Alphabetical Lists of Confirmed and Ascribed Nobles of the Ufa and Orenburg Gubernias of the Russian Empire as a Historical source: The Second Half of the 19th – Early 20th Century

The article presents the results of the source studies analyses of the alphabetical lists of confirmed and ascribed nobles of the Ufa and Orenburg gubernias from the Russian State Historical Archive (RGIA). Imperially approved opinion of the State Council of the Russian Empire (January 2, 1861) ordered national noble assemblies to send annually to the Department of Heraldry of the Governing Senate “alphabetical lists of noble families during the year confirmed in their nobility by the Governing Senate” and “similar lists of those families, to which, in the course of the year, were attached some individuals.” Most of these lists are preserved in the materials of the “Third Department of the Senate” fond of the Russian State Historical Archive. The archives holds original copies of 39 reports and 65 lists, including 28 lists of confirmed nobles, and 37 — of ascribed, which were sent to the to the Department of Heraldry of the Governing Senate by the Orenburg Noble Assembly in 1862-1917; and 48 reports and 89 lists, including 41 of confirmed nobles and 48 — of ascribed, which were sent to the Department of Heraldry by the Ufa Noble Assembly in 1866-1917. These documents are written on plain paper on both sides of the sheet sized 22.2 (width) * 35.4 (height) cm. Most are handwritten. Reports of the Ufa Noble Assembly became typewritten from 1899 on, those of the Noble Orenburg Assembly — since 1911; lists of Ufa Noble Assembly became typewritten from 1897 on, of the Orenburg Noble Assembly — from 1908 on. The lists have a title page. Information about the nobles is given in tabular form. A list of confirmed nobles contains the following information: surname, name, patronymic of the person confirmed in hereditary nobility; date of the resolution of the Noble Assembly on declaring them a noble; part of the genealogical book, in which that person was entered; the date of receipt of documents for consideration in the Department of Heraldry; date and number of the confirming decree of Department of the Heraldry. The list of ascribed nobles includes such data as: surname, name, patronymic of the person added to the nobility; the date of the resolution of the Noble Assembly to ascribe the person to a noble family, confirmed by the Department of Heraldry; name, date, and document number(s) on the basis of which they were ascribed; part of the genealogical book, in which the family was entered; date and number of the decree of the Department of Heraldry of the Governing Senate confirming the family to rank among the nobility. The list was to be certified by signatures of the gubernia marshal of nobility, or those acting in that position, and by the secretary of the Noble Assembly. The list was not sealed. These documents are unique and quite valuable written sources on the history of the Russian nobility.

ANALISIS DAN PERANCANGAN SISTEM ADMINISTRASI DAN TRANSAKSI BERBASIS CLIENT SERVER

Almost all areas of business take advantage of computer technology as a medium of information to obtain information quickly and accurately. Daffa fitnes is one of the fitness centers that have not utilized computer technology, to manage data and provide information for members or visitors who use services on Daffa fitnes. All process activities are done manually, all data written on a plain paper, of course very high risk of loss or damage of data. In the implementation of application systems using Borland Delphi 7 programming for interface design, while for data storage using MySql database and components MyOdbc Connector as a liaison to spread data on server and client computers. It is expected that this system becomes an effective media in the management of administrative data and transactions, with the utilization of client server-based system on the application so as to facilitate the officer in managing the data in accordance with its part. This system is very feasible to be used as a medium to manage data to minimize the occurrence of errors and simplify the maintenance of data.

Security Paper Design with Frequency-Selective Structure for X-Band Electromagnetic Detection System

This study designed and fabricated a frequency-selective structure-based security paper for the electromagnetic detection system of a security gate, which aims to prevent leakage of confidential documents. When a functional paper embedded with a frequency-selective pattern that selectively reflects a specific frequency is being leaked out of a security zone, the electromagnetic detection system receives and detects the intensity of the electromagnetic wave reflected from the security paper passing through an antenna gate, which transmits/receives RF signals. A stable detection performance of the security paper can be ensured by improving the incidence angle stability for incident waves and reducing the reflection loss. This study designed a frequency-selective structure with stable frequency reflection properties at the X-band by utilizing a Jerusalem cross structure. The proposed design was realized using the screen printing technique, which could implement a circuit, to print silver ink on a plain paper. To verify the applicability of the frequency-selective structure-based security paper, an RF detection system with a multiple antenna array was constructed and the intensity of the received signals was measured. The measurement was performed for various scenarios, and the result showed that the proposed security paper was well detected.

Implementing and Improving Automated Electronic Tumor Molecular Profiling

Oncology practice increasingly requires the use of molecular profiling of tumors to inform the use of targeted therapeutics. However, many oncologists use third-party laboratories to perform tumor genomic testing, and these laboratories may not have electronic interfaces with the provider’s electronic medical record (EMR) system. The resultant reporting mechanisms, such as plain-paper faxing, can reduce report fidelity, slow down reporting procedures for a physician’s practice, and make reports less accessible. Vanderbilt University Medical Center and its genomic laboratory testing partner have collaborated to create an automated electronic reporting system that incorporates genetic testing results directly into the clinical EMR. This system was iteratively tested, and causes of failure were discovered and addressed. Most errors were attributable to data entry or typographical errors that made reports unable to be linked to the correct patient in the EMR. By providing direct feedback to providers, we were able to significantly decrease the rate of transmission errors (from 6.29% to 3.84%; P < .001). The results and lessons of 1 year of using the system and transmitting 832 tumor genomic testing reports are reported.

Present State of Inkjet Printing Technology for Textile

nkjet printing technology can produce beautiful images not only on plain paper, but also on various kinds of printing media including a piece of cloth. Some Japanese companies have already stepped into the textile inkjet printer market, but making a profit is not easy so long as we look upon the inkjet printing technology as an alternative means of textile dyeing. Cost reduction is necessary as a whole for the inkjet printing systems to come into wide use in the textile dyeing industry. This paper describes current textile inkjet printing technology.

Kemampuan Susu Fermentasi Lactobacillus plantarum Menghambat Salmonella typhymurium Secara In Vitro

The ability of Lactobacillus plantarum fermented milk to inhibit Salmonella typhymurium in vitroABSTRACT. This research used Lactobacillus plantarum as a milk starter (concentration 3, 4, 5 %) and incubated for 48 hours at room temperature. Observation fermented begin from the first day of this product until 7 days and its still stored at room temperature. First analysis conducted on milk in this research were Storch, pH, acidity titration, fat, and dry matter. Milk fermentation analysis of Lactobcillus plantarum including pH, degree of dornik acidity and microbe activity test. Experimental design used is Repeated Measurement with three replications. Data colected analyzed by ANOVA test. If there is significant different between treatments, followed by Least Significant Test. Complete pasteurization result test (Storch) found that milk stay white, it means that peroksidase enzyme completely disappear and milk completely pasteurization. The ability of suppressing observed by Salmonella typhymurium in Nutrient Agar and challenge with Lactobacillus plantarum fermented milk 3%, 4% and 5% (50 μl/well). Tetracyline, chloramphenicol and a plain paper disc are used as control. Lactobacillus plantarum fermented milk of starter concentration 5%-first day has the biggest inhabitation zone by Salmonella typhimurium (9.39 mm). Range of pH showed between 4.84 to 4.14 and the acidity between 114.67 0D to 365.67 0D. Sensitivity test showed that Salmonella typhymurium more sensitive than chloramphenicol and tetracyline antibiotic.