The Masers Towards IRAS 20126+4104

We present MERLIN observations of OH, water and methanol masers towards the young high mass stellar object IRAS 20126+4104. Emission from the 1665-MHz OH, 22-GHz H_2O and 6.7-GHz CH_3OH masers is detected and all originates very close to the central source. The OH and methanol masers appear to trace part of the circumstellar disk around the central source. The positions and velocities of the OH and methanol masers are consistent with Keplerian rotation around a central mass of ~ 5 Msun. The water masers are offset from the OH and methanol masers and have significantly changed since they were last observed, but still appear to be associated to the outflow from the source. All the OH masers components are circularly polarised, in some cases reaching 100 percent while some OH components also have linear polarisation. We identify one Zeeman pair of OH masers and the splitting of this pair indicates a magnetic field of strength ~ 11 mG within ~ 0.5" (850 AU) of the central source. The OH and methanol maser emission suggest that the disk material is dense, n > 10^6 cm^-3, and warm, T > 125 K and the high abundance of methanol required by the maser emission is consistent with the evaporation of the mantles on dust grains in the disk as a result of heating or shocking of the disk materialComment: 9 pages, 7 figures and 6 table

Performance and cryptographic evaluation of security protocols in distributed networks using applied pi calculus and Markov Chain

The development of cryptographic protocols goes through two stages, namely, security verification and performance analysis. The verification of the protocol’s security properties could be analytically achieved using threat modelling, or formally using formal methods and model checkers. The performance analysis could be mathematical or simulation-based. However, mathematical modelling is complicated and does not reflect the actual deployment environment of the protocol in the current state of the art. Simulation software provides scalability and can simulate complicated scenarios, however, there are times when it is not possible to use simulations due to a lack of support for new technologies or simulation scenarios. Therefore, this paper proposes a formal method and analytical model for evaluating the performance of security protocols using applied pi-calculus and Markov Chain processes. It interprets algebraic processes and associates cryptographic operatives with quantitative measures to estimate and evaluate cryptographic costs. With this approach, the protocols are presented as processes using applied pi-calculus, and their security properties are an approximate abstraction of protocol equivalence based on the verification from ProVerif and evaluated using analytical and simulation models for quantitative measures. The interpretation of the quantities is associated with process transitions, rates, and measures as a cost of using cryptographic primitives. This method supports users’ input in analysing the protocol’s activities and performance. As a proof of concept, we deploy this approach to assess the performance of security protocols designed to protect large-scale, 5G-based Device-to-Device communications. We also conducted a performance evaluation of the protocols based on analytical and network simulator results to compare the effectiveness of the proposed approach

Kinerja UMKM Tenant Inkubator Bisnis Universitas Muria Kudus Berdasarkan Implementasi E-marketing

Dengan berkembangnya kemajuan teknologi dan informasi membawa paradigma tersendiri bagi konsep pemasaran. Kini pemasaran bersinergi dengan pemanfaatan teknologi dan informasi dalam konsep Pemasaran Elektronik (E-Marketing). E-Marketing ini dapat mempermudah akses antara para pelaku pemasaran, yakni Perusahaan, pemasar, pelanggan dan mitra bisnis yang lainnya. E-Marketing dapat difungsikan guna memperkenalkan produk yang tidak hanya pada lokal daerah tapi juga skala nasional bahkan Internasional. E-Marketing juga berperan sebagai pembentuk nilai keunggulan bersaing.Objek penelitian ini adalah 25 UMKM sebagai tenant inkubator bisnis Universitas Muria Kudus. Sebanyak 8 buah UMKM bergerak pada jenis industri makanan dan minuman, 8 buah konveksi pakaian, dan masing-masing 3 buah UMKM pada konveksi bordir, konveksi jilbab, dan konveksi tas.Penelitian ini akan menilai kinerja UMKM tenant inkubator Universitas Muria Kudus berdasarkan implementasi E-Marketing. Sehingga akan nampak berapa UMKM yang telah melaksanakan E-Marketing, bagaimana pemanfaatan dan penggunaan media sosial dan uji beda sebelum dan sesudah kegiatan E-Marketing didayagunakan

Knowledge, Attitudes, and Practice towards Occupational Health and Safety among Nursing Students in Gaza Strip, Palestine

Health and safety in the workplace are critical components in healthcare institutions. Unsafe working conditions are among the causes of poor  quality of care and burnout. This study aims to assess the knowledge, attitudes, and practice of occupational health and safety among nursing  students at Al-Israa University. Methods: In this cross-sectional study, a structured online questionnaire was distributed from March to May 2021. Of the 350 eligible students, 219  students answered the questionnaire (Response rate=62.6). Data were analyzed using the statistical software IBM-SPSS version 22. Descriptive  statistic, Independent- samples T-Test, and ANOVA tests were used. Results: The majority of participants were female (81.7%) and studying in a diploma program. 21% of nursing students have experienced a needle  stick injury. The mean scores for knowledge, attitudes, and practice were (M±SD:78.2% ±12.9, M±SD:80.6% ±7.1, and M±SD:81.2% ±7.6) respectively.  In terms of knowledge, attitudes, and practice the mean scores were statistically significant between nursing students who attended a safety  precautions course and those who didn not (P-value <.05). In terms of attitudes, the mean scores were statistically significant between diploma and  bachelor students (P-value =.026).In terms of practice, the means scores were statistically significant between males and females (P-value =.017),  nursing students who had experience with needle sticks and those who didn’t (P-value =.015). Conclusion: The authors recommend that clinical  training departments and universities continue to offer occupational health and safety courses and training for health science students. Since the  training had a positive impact on the students' practices.&nbsp

Rhizobacteria-mediated Induced Resistance in Barley against Cochliobolus sativus under Field Conditions

The effect of four rhizobacterial strains on the severity of spot blotch disease caused by cochliobolus sativus was evaluated for two growing seasons under rainfed conditions. Three barley genotypes were used as host plant. All strains reduced C. sativus severity, with effect more pronounced when Pseudomonas putida BTP1 and Bacillus subtilis Bs2508 were used. The disease reduction was up to 56% in Arabi Abiad / P. putida BTP1. The grain yield was not obviously affected by the presence of the rhizobacteria, except some signifitive increase in season 2. Raising the resistance by soaking seed with rhizobacterial strains might be of ultimate value in agriculture

Kajian Potensi Investasi Taman Budaya Sosrokartono Kabupaten Kudus

Kajian Potensi Investasi Taman Budaya Sosrokartono pada hakekatnya bertujuan untuk mengembangkan potensi budaya Kabupaten Kudus yang terdiri dari : sistem bahasa, sistem pengetahuan, sistem teknologi, sistem ekonomi, sistem sosial, sistem religi, dan sistem kesenian. Ketujuh sistem tersebut saling berkaitan merupakan satu kesatuan yang semata-tidak dapat dipisahkan. Analisi yang diguanakan adalah analisis SWOT yang berkolaborasi dengan analisis Balanced Scorecard. Mengacu pada tujuh sistem budaya tersebut dapat di identifikasi faktor internal dan eksternal yang terdiri dari : kekuatan/potensi, kelemahan, peluang, ancaman, yang dikolaborasikan dengan perspektif finance, operasional, customer, dan learning proces. Proses berikutnya adalah menentukan posisi strategis dan perencanaan strategis Taman Budaya Sosrokartono. Kesimpulan hasil kajian ini adalah adanya potensi investasi yang terdiri dari tujuh sistem budaya dan dapat direkomendasikan pembangunan sarana dan prasarana sesuai Peruntukanny

The OH Masers Towards IRAS 19092+0841

Context. Maser emission is a strong tool for studying high mass star forming regions and their evolutionary stages. OH masers in particular can trace the circumstellar material around protostars and determine their magnetic field strengths at milliarcsecond resolution. Aims. Imaging OH maser mission towards high mass protostellar objects to determine their evolutionary stages and to locate the detected maser emission in the process of high mass star formation. Methods. In 2007, we surveyed OH maser towards 217 high mass protostellar objects to study its presence. In this paper, we present a follow up MERLIN observations of a ground state OH maser emission towards one of these objects, IRAS 19092+0841. Results. Emission from the two OH main spectral lines, 1665 and 1667 MHz, were detected close to the central object. The positions and velocities of the OH maser features have been determined. The masers are distributed over a region of ~ 500 corresponding to 22400 AU (or ~ 0.1 pc) at a distance of 4.48 kpc. The polarization properties of the OH maser features were determined as well. We identify three Zeeman pairs from which we inferred a magnetic field strength of ~ 4:4mG pointing towards the observer. Conclusions. The relatively small velocity spread and the relatively wide spacial distribution of the OH maser features support the suggestion that this object could be in an early evolutionary state before the presence of disk and/or jet/outfows.Comment: 6 pages, 2 figures and 3 table