Safe Food Handling Knowledge, Attitude and Practice of Food Handlers in Hospital Kitchen

Hospital food hygiene plays an important role to patient's health. Studies proved that improper practices and lack of knowledge are contributing factors of foodborne diseases. This study was conducted to determine knowledge, attitude and practice of hospital safe food handling in Semarang, Central Java. A cross sectional study was conducted in two general hospitals' kitchen. Data were collected from 60 food handlers through validated questionnaire. Respondents were grouped into two categories: a. Teaching Hospital, and b.Non-teaching Hospital. Data were collected in February-April 2017. Most of food handlers (80%) were graduated from vocational senior high school (SMK). Respondent's age were 28-37 years (36.7%) in average. Most of respondent‟s work experience (85%) was less than 15 years. The result showed that more than 80% of food handlers have good knowledge in safe food handling procedures, good attitude (66%) and good practices (90%). There was no significant difference of knowledge, attitude and practices between two groups. Results strongly emphasize the need of food hygiene training of hospital food handlers. It also suggest that non food handlers such as nurse or kitchen supervisor should involved in the training. Some aspects of food handlers' safety behavior need to be emphasized

Pengaruh Komitmen Organisasi, Penghargaan dan Kepuasan Kerja terhadap Perputaran Karyawan pada Perbankan Syariah di Kota BATAM

The Effect of Organization Commitment, Reward, and Work Satisfaction to Turnover in Islamic Banking at BatamThis study aims to analyze the effect of organizational commitment, reward to turn-over intention through work satisfaction variable and to analyze the most affective variable on turn-over intention. The method that used on this study is path analysis. According to the analysis, it is concluded as the followings: organizational commitment has effect on work satisfaction, reward has effect on work satisfaction, work satisfaction has effect on turnover intention, organizational commitment has a effect on turnover intention, reward has a effect on turnover intention, organizational commitment has a effect on turnover intention through work satisfaction, reward has a effect on turnover intention through work satisfaction.DOI: 10.15408/etk.v14i1.226

Pengaruh Komitmen Organisasi, Penghargaan dan Kepuasan Kerja terhadap Perputaran Karyawan pada Perbankan Syariah di Kota BATAM

The Effect of Organization Commitment, Reward, and Work Satisfaction to Turnover in Islamic Banking at BatamThis study aims to analyze the effect of organizational commitment, reward to turn-over intention through work satisfaction variable and to analyze the most affective variable on turn-over intention. The method that used on this study is path analysis. According to the analysis, it is concluded as the followings: organizational commitment has effect on work satisfaction, reward has effect on work satisfaction, work satisfaction has effect on turnover intention, organizational commitment has a effect on turnover intention, reward has a effect on turnover intention, organizational commitment has a effect on turnover intention through work satisfaction, reward has a effect on turnover intention through work satisfaction.DOI: 10.15408/etk.v14i1.226

The zero exemplar distance problem

Given two genomes with duplicate genes, \textsc{Zero Exemplar Distance} is the problem of deciding whether the two genomes can be reduced to the same genome without duplicate genes by deleting all but one copy of each gene in each genome. Blin, Fertin, Sikora, and Vialette recently proved that \textsc{Zero Exemplar Distance} for monochromosomal genomes is NP-hard even if each gene appears at most two times in each genome, thereby settling an important open question on genome rearrangement in the exemplar model. In this paper, we give a very simple alternative proof of this result. We also study the problem \textsc{Zero Exemplar Distance} for multichromosomal genomes without gene order, and prove the analogous result that it is also NP-hard even if each gene appears at most two times in each genome. For the positive direction, we show that both variants of \textsc{Zero Exemplar Distance} admit polynomial-time algorithms if each gene appears exactly once in one genome and at least once in the other genome. In addition, we present a polynomial-time algorithm for the related problem \textsc{Exemplar Longest Common Subsequence} in the special case that each mandatory symbol appears exactly once in one input sequence and at least once in the other input sequence. This answers an open question of Bonizzoni et al. We also show that \textsc{Zero Exemplar Distance} for multichromosomal genomes without gene order is fixed-parameter tractable if the parameter is the maximum number of chromosomes in each genome.Comment: Strengthened and reorganize

DETERMINISTIC AND STOCHASTIC DENGUE EPIDEMIC MODEL: EXPLORING THE PROBABILITY OF EXTINCTION

Dengue, a vector-borne disease, threatens the life of humans in tropical and subtropical regions. Hence, the dengue transmission dynamics need to be studied. An important aspect to be investigated is the probability of extinction. In this paper, deterministic and stochastic dengue epidemic models with two-age classes have been developed and analyzed, and the probability of extinction has been determined.  For the stochastic approach, we use the Continuous-Time Markov Chain model. The results show that vaccination of adult individuals leads to a lower number of adult infected individuals. Furthermore, the results showed that a higher number of initial infections causes a low probability of dengue extinction. Furthermore, factors contributing to an increase in the infection-related parameters have to be minimized to increase the potential reduction of dengue cases

Sintesis Bahan Olah Kompon Karet Secara Reaksi Vulkanisasi Dari Perpaduan Minyak Nabati Semi Pengering Dan Pengering

Faktis cokelat merupakan salah satu bahan kimia karet terpenting yang berfungsi sebagai bahan bantu olah kompon karet. Mutu faktis cokelat dipengaruhi oleh pemilihan jenis minyak nabati sebagai bahan baku utama, konsentrasi sulfur, dan suhu reaksi. Reaksi vulkanisasi antara minyak nabati dengan sulfur pada pembentukan faktis cokelat umumnya dilakukan pada suhu 140-190oC. Minyak nabati harus memiliki bilangan iod yang tinggi minimal 80-110 g iod/100 g minyak. Pada penelitian ini dipelajari peluang pembuatan faktis cokelat dari kombinasi minyak jarak kastor dengan minyak nabati lain golongan semi pengering (sawit, jarak pagar) dan pengering (kedelai, jagung, kanola) pada rasio minyak sebesar 80 : 20 dengan penambahan 24 bsm sulfur dan 150oC. Hasil percobaan menunjukkan bahwa faktis cokelat dapat disintesis dari kombinasi antar minyak nabati tersebut pada kondisi reaksi vulkanisasi yang telah ditetapkan. Berdasarkan hasil karakterisasi diperoleh faktis cokelat dengan tingkatan mutu setara dengan faktis cokelat komersial kelas 3. Kombinasi minyak nabati yang menghasilkan faktis cokelat terbaik diperoleh dari campuran antara minyak jarak kastor dengan minyak sawit. Diterima : 14 April 2014; Direvisi : 20 Mei 2014; Disetujui : 12 Juli 2014 How to Cite : Puspitasari, S., Cifriadi, A., Nurgilis, E. L., & Arif, Z. (2014). Sintesis bahan olah kompon karet secara reaksi vulkanisasi dari perpaduan minyak nabati semi pengering dan pengering. Jurnal Penelitian Karet, 32(2), 189-197. Retrieved from http://ejournal.puslitkaret.co.id/index.php/jpk/article/view/16

Non-Commutative Gauge Theories and the Cosmological Constant

We discuss the issue of the cosmological constant in non-commutative non-supersymmetric gauge theories. In particular, in orbifold field theories non-commutativity acts as a UV cut-off. We suggest that in these theories quantum corrections give rise to a vacuum energy \rho, that is controlled by the non-commutativity parameter \theta, \rho ~ 1/theta^2 (only a soft logarithmic dependence on the Planck scale survives). We demonstrate our claim in a two-loop computation in field theory and by certain higher loop examples. Based on general expressions from string theory, we suggest that the vacuum energy is controlled by non-commutativity to all orders in perturbation theory.Comment: 11 pages, RevTex. 4 eps figures. v2: Typos corrected. To appear in Phys.Rev.

Closed Strings Tachyons and Non-Commutative Instabilities

We observe a relation between closed strings tachyons and one-loop instabilities in non-supersymmetric non-commutative gauge theories. In particular we analyze the spectra of type IIB string theory on C^3/Z_N orbifold singularities and the non-commutative field theory that lives on D3 branes located at the singularity. We find a surprising correspondence between the existence or not of one-loop low-momentum instabilities in the non-commutative field theory and the existence or not of tachyons in the closed string twisted sectors. Moreover, the relevant piece of the non-commutative field theory effective action is suggestive of an exchange of closed string modes. This suggests that non-commutative field theories retain some information about the dynamics of the underlying string configuration. Finally, we also comment on a possible relation between closed string tachyon condensation and field theory tachyon condensation.Comment: 27 pages, Latex. v2: Comment about anomalies and refs. added. Version published in JHEP. v3: minor change