Simulasi Dan Analisis QoS Video Conference Melalui Jaringan Interworking IMS - UMTS Menggunakan Opnet

Next Generation Network (NGN) merupakan salah satu teknologi masa depan yang memberikan layanan berupa voice, data, multimedia, dan internet yang mengacu pada konvergensi layanan berbasis IP. Sebuah teknologi yang mendukung konsep konvergensi berbasis IP adalah IP Multimedia Subsystem (IMS). UMTS merupakan salah satu teknologi bergerak seluler generasi ke tiga (3G) yang sebagian besar masyarakat gunakan karena rata-rata masyarakat sudah menggunakan gadget yang mendukung jaringan 3G. Dengan menggunakan jaringan 3G, masyarakat dapat melakukan komunikasi video conference. Video conference merupakan salah satu komunikasi jarak jauh yang bersifat real time sebagai pengganti tatap muka. Namun, layanan video conference pada jaringan IMS – UMTS perlu diketahui kelayakannya. Video conference merupakan layanan yang sensitif terhadap delay sehingga perlu dilakukan analisis QoS. Pada penelitian ini dilakukan simulasi dan analisis QoS video conference pada jaringan IMS – UMTS. Simulasi ini akan dibuat dengan menggunakan software OPNET modeler 14.5. Skenario yang digunakan adalah skenario Integrated Service (IntServ) untuk mengamati jaringan IMS dan Differentiated Service (DiffServ) untuk mengamati hubungan antara IMS dengan UMTS. Penelitian ini menggunakan jumlah user yang berbeda-beda yaitu 4 user, 8 user, dan 12 user dengan waktu simulasi yang berbeda, yaitu 100 detik, 200 detik, dan 300 detik. Dari hasil penelitian yang didapat, pada skenario Intserv dihasilkan nilai rata-rata terbesar untuk throughput adalah 26.643 Mbit/s, end-to-end delay sebesar 233.069 ms, dan jitter  sebesar 0.073 ms. Untuk skenario Diffserv dihasilkan nilai rata-rata terbesar untuk throughput adalah 8.484 Mbit/s, end-to-end delay sebesar 164.138 ms, dan jitter sebesar 0.488 ms. Untuk nilai packet loss ke dua skenario menghasilkan nilai kurang dari 1%. Jika dilihat dari standar ITU-T G-114, rata-rata nilai parameter pada ke dua skenario termasuk dalam kategori bai

The Didascalies as sign-system in three dramas by M.S. Serudu

The dynamic nature of drama is reflected in the inherent dichotomous composition of text and performance. The continuing controversy about the infrequent public performances of the almost 250 published texts in African languages and the literary approach towards Northern Sotho texts have prompted the present survey. Two main reasons are identified for the existing textual centricity in the approach towards Northern Sotho dramas, namely text-external and text-internal factors. The latter forms the main focus of attention in this study. The role of the didascalies as semiotic sign-system - referring to all aspects of the dramatic text which contain instructions for a potential performance - are investigated. The scrutiny of the stage directions afforded an unequalled vantage point in revealing the ostensive or performance nature of the three dramas by M.S. Serudu. In conclusion possible solutions for the future are offered against the background of the findings arrived at in the analysis.African LanguagesM.A. (African Languages

Distinct Genomic Profiles Are Associated with Treatment Response and Survival in Ovarian Cancer

SIMPLE SUMMARY: In most patients with ovarian cancer, their disease eventually becomes resistant to chemotherapy. The timing and type of treatment given are therefore highly important. Currently, treatment choice is mainly based on the subtype of cancer (from a histological point of view), prior response to chemotherapy, and the time it takes for the disease to recur. In this study, we combined complete genome data of the tumor with clinical data to better understand treatment responses. In total, 132 tumor samples were included, all from patients with disease that had spread beyond the primary location. By clustering the samples based on genetic characteristics, we have identified subgroups with distinct response rates and survival outcomes. We suggest that in the future, this data can be used to make more informed treatment choices for individuals with ovarian cancer. ABSTRACT: The majority of patients with ovarian cancer ultimately develop recurrent chemotherapy-resistant disease. Treatment stratification is mainly based on histological subtype and stage, prior response to platinum-based chemotherapy, and time to recurrent disease. Here, we integrated clinical treatment, treatment response, and survival data with whole-genome sequencing profiles of 132 solid tumor biopsies of metastatic epithelial ovarian cancer to explore genome-informed stratification opportunities. Samples from primary and recurrent disease harbored comparable numbers of single nucleotide variants and structural variants. Mutational signatures represented platinum exposure, homologous recombination deficiency, and aging. Unsupervised hierarchical clustering based on genomic input data identified specific ovarian cancer subgroups, characterized by homologous recombination deficiency, genome stability, and duplications. The clusters exhibited distinct response rates and survival probabilities which could thus potentially be used for genome-informed therapy stratification for more personalized ovarian cancer treatment

Gender role changes in African households : a challenge to theology and psychology

Women empowerment is growing in South African communities and workplaces. More women are in executive positions which often require time away from home with the implication that their conversations with family and relatives are limited. As time change, the role of men changes in the family context especially in Africa. Gone are the days when women were told that they belong in the kitchen. More women step forward in the corporate world by taking up key leadership roles. The purpose of the Employment Equity Act (EEA) is to protect employees from unfair treatment. However, the implementation of affirmative action aims at measuring whether the challenges faced by the previously disadvantaged groups, and factors such as age, gender, ethnicity and disability regarding basic employment conditions are still questionable. Some women earn more than their husbands, compared to the past when men were the breadwinners of the household, particularly in black communities. In this article is discussed the factors contributing to black men’s gender role changing in the household from a theological and psychological perspective. CONTRIBUTION: The contextual perspective of this research is contributed by the African men’s concern regarding cultural beliefs and practices relating to gender role changes in households. The contribution of this article is to inform people about factors, which African men experience in gender role changes in households from both a theological and psychological perspective. This research is done using a literature review; thus, a multi-disciplinary approach, which seeks to provide knowledge and encourage African black men to embrace gender transformation roles in households.http://www.inluceverbi.org.za/index.php/skrifligHumanities EducationPractical TheologySDG-05:Gender equalitySDG-08:Decent work and economic growt

TiO2 Nanocrystals Decorated CVD Graphene for Electroanalytical Sensing

In this work, the manufacturing and characterization of an optically transparent and UV-light photoactive anode, formed of monolayer graphene grown by chemical vapor deposition (CVD) and decorated with a close packed multilayered nanostructured layout of colloidal TiO2 nanocrystals (NCs), are reported. The hybrid material has been prepared by a facile solution-based procedure, which relays on soaking the CVD graphene in a solution of 1-pyrene butyric acid (PBA) surface coated TiO2 NCs, achieved upon implementation of a capping exchange process for displacing the pristine organic ligand deriving from the colloidal synthesis. Pyrene undergoes \u3c0-\u3c0 stacking interactions, anchoring the NCs to the platform with retention of the NC geometry and composition. The NCs immobilize onto the graphene platform with preservation of its aromatic structure and the resulting hybrid has been found optically transparent in the visible spectral range. (Photo)electrochemical investigation shows that the composite material has a promising sensitivity for selectively detecting dopamine and norepinephrine and, concomitantly, exhibits a (photo)electric activity higher than that of bare graphene. Thus, the achieved hybrid material results interesting for the manufacturing of photo-active components to integrate in photo-renewable sensor elements along with photodetectors and solar cells