CASPR: Judiciously Using the Cloud for Wide-Area Packet Recovery

We revisit a classic networking problem -- how to recover from lost packets in the best-effort Internet. We propose CASPR, a system that judiciously leverages the cloud to recover from lost or delayed packets. CASPR supplements and protects best-effort connections by sending a small number of coded packets along the highly reliable but expensive cloud paths. When receivers detect packet loss, they recover packets with the help of the nearby data center, not the sender, thus providing quick and reliable packet recovery for latency-sensitive applications. Using a prototype implementation and its deployment on the public cloud and the PlanetLab testbed, we quantify the benefits of CASPR in providing fast, cost effective packet recovery. Using controlled experiments, we also explore how these benefits translate into improvements up and down the network stack

Perbedaan Prestasi Belajar Matematika Siswa Antara Yang Mendapatkan Model Pembelajaran Guided Note Taking Dengan Team Accelerated Instruction

This research use two learning they are guided note taking with team accelerated instruction. This research is eksperimental quasi. The study in this learning guided student's attention to learn mathematics. The purpose in this research is to know the difference of mathematics achievement student learning who use guided note taking learning with team accelerated instruction. After used the last evaluation and use the significant is 5%, it can be taken the conclusion that there is no difference of mathematics achievement students learning who use guided note taking learning with team accelerated instructio. Where as, student attitude for guided note taking learning is positive attitude and student attitude for team accelerated instruction learning is positive attitude

Bulk scalar field in DGP braneworld cosmology

We investigated the effects of bulk scalar field in the braneworld cosmological scenario. The Friedmann equations and acceleration condition in presence of the bulk scalar field for a zero tension brane and cosmological constant are studied. In DGP model the effective Einstein equation on the brane is obtained with bulk scalar field. The rescaled bulk scalar field on the brane in the DGP model behaves as an effective four dimensional field, thus standard type cosmology is recovered. In present study of the DGP model, the late-time accelerating phase of the universe can be explained .Comment: 10 pages, to appear in JCA

Perbedaan Hasil Belajar Matematika Siswa antara yang Mendapatkan Model Pembelajaran Brain Based Learning dengan Numbered Head Together

The research was conducted to distinguish the two models , this is Brain Based Learning ( BBL ) with the Numbered Head Together ( NHT ) to see the extent to which the two models are instrumental in improving the learning outcomes of students learning mathematics . Authors wanted to see if there are differences in mathematics achievement between students who received Brain Based Learning ( BBL ) with Numbered Head Together ( NHT ) ? . The method that I use in this study is experimental research that is giving treatment to two different classes . The population in this study were all students class VII of SMP Negeri 1 Cikajang with a randomly selected sample of the class VII- C and class VII - D . The instrument used to measure student learning outcomes in the form mathematics objective tests , administered before and after the treatment the author gives a treat . From the analysis of the Mann Whitney test , to test initial value Zhitung = 1.72 and Ztabel = 2.24 with a significance level of 5 % ( α = 0.05 ) zhitung which is located in the reception area Ho , Ho is accepted then it means there is no difference initial ability between experimental classes experiment I and experiment II . While the results of Mann Whitney test to post test at significance level of 5 % ( α = 0.05 ) , zhitung = 3.18 using the two test sides of Zhitung value = 3.18 > Ztabel = 2.24 , in other words zhitung rejection of Ho is in the region , in other words Ha accepted . It means that there are differences in mathematics outcomes between students who received learning model with Brain Based Learning (BBL) with Numbered Head Together (NHT)

Creating a center for global health at the University of Wisconsin-Madison.

Globalization, migration, and widespread health disparities call for interdisciplinary approaches to improve health care at home and abroad. Health professions students are pursuing study abroad in increasing numbers, and universities are responding with programs to address these needs. The University of Wisconsin (UW)-Madison schools of medicine and public health, nursing, pharmacy, veterinary medicine, and the division of international studies have created an interdisciplinary center for global health (CGH). The CGH provides health professions and graduate students with courses, field experiences, and a new Certificate in Global Health. Educational programs have catalyzed a network of enthusiastic UW global health scholars. Partnerships with colleagues in less economically developed countries provide the foundation for education, research, and service programs. Participants have collaborated to improve the education of health professionals and nutrition in Uganda; explore the interplay between culture, community development, and health in Ecuador; improve animal health and address domestic violence in Mexico; and examine successful public health efforts in Thailand. These programs supply students with opportunities to understand the complex determinants of health and structure of health systems, develop adaptability and cross-cultural communication skills, experience learning and working in interdisciplinary teams, and promote equity and reduce health disparities at home and abroad. Based on the principles of equity, sustainability, and reciprocity, the CGH provides a strong foundation to address global health challenges through networking and collaboration among students, staff, and faculty within the UW and beyond

CASPR: judiciously using the cloud for wide-area packet recovery

We revisit a classic networking problem -- how to recover from lost packets in the best-effort Internet. We propose CASPR, a system that judiciously leverages the cloud to recover from lost or delayed packets. CASPR supplements and protects best-effort connections by sending a small number of coded packets along the highly reliable but expensive cloud paths. When receivers detect packet loss, they recover packets with the help of the nearby data center, not the sender, thus providing quick and reliable packet recovery for latency-sensitive applications. Using a prototype implementation and its deployment on the public cloud and the PlanetLab testbed, we quantify the benefits of CASPR in providing fast, cost effective packet recovery. Using controlled experiments, we also explore how these benefits translate into improvements up and down the network stack.First author draf

Generating neutralizing antibodies, Th1 response and MHC non restricted immunogenicity of HIV-I env and gag peptides in liposomes and ISCOMs with in-built adjuvanticity

For enhancing immunogenicity and develop vaccine strategies using peptide based constructs against HIV-1, a chimeric peptide containing V3 loop and transmembrane sequence of gp41 with two glycine motifs as spacer was constructed. The V3-gp41, gp41 peptide and p17 and p24 peptides separately or in a cocktail were entrapped with or without MA729 as an immunoadjuvant in liposomes or ISCOMs. The immunogenicity, antigen induced T-cell proliferation and cytokine profiles of various formulations were studied in four different inbred strains of mice of H-2(d), H-2(b), H-2(k )and H-2(q )haplotypes, keeping alum as a control adjuvant. Both liposomes and ISCOM preparations elicited high titer and long lasting antibody response (60 days and above). When compared to the alum formulation, the liposomes co-entrapped with MA729 produced high antibody levels, comparable with that induced by ISCOMs. Peptide in alum, liposomes and ISCOMs enhanced both antigen specific IgG2a and IgG2b isotypes and high T-cell stimulation index. Peptide formulations also induced antibodies with high affinity and in vitro neutralizated the formation of HIV-1 syncytia. T-cell supernatants contained high levels of IFN-γ and IL-2. Thus formulation in these adjuvants induced a predominant Th1 like response with MA729 as a versatile novel delivery vehicle for stimulating the appropriate arm of the immune response that can selectively modulate MHC class I or MHC class II response. The above peptide can be of wide vaccination interest as a means to improve immune responses to several other HIV-1 antigens and may serve as candidates for vaccine development

Clinics in diagnostic imaging (102)

A 19-year-old man presented with cough and haemoptysis of ten days duration. He also had mild right hypochondrial pain. Chest radiograph and computed tomography (CT) showed a rounded soft tissue density opacity with an air crescent sign. CT showed multiple cystic lesions in the liver with a daughter cyst in its lateral wall. Diagnosis of hydatid disease of lung and liver was made. The contents of the liver cyst were aspirated, hypertonic saline instilled, re-aspirated, and absolute alcohol injected. Hydatid disease is endemic in certain parts of the world. Although the lungs and liver are most frequently affected, the disease can arise in any part of the body and should be kept in differential diagnosis whenever a cystic lesion is encountered. Hydatid cysts typically demonstrate characteristic imaging findings, however, the appearances may become complicated due to cyst rupture or secondary infection. Ultrasonography is the imaging modality of choice particularly in hepatic disease. CT best demonstrates cyst wall calcification and cyst infection

Perbandingan Metode Steam Distillation Dan Steam-Hydro Distillation Dengan Microwave Terhadap Jumlah Rendemen Serta Mutu Minyak Daun Cengkeh (Syzygium Aromaticum)

Penelitian ini bertujuan mempelajari dan membandingkan proses pengambilan minyak dari daun cengkeh kering dengan menggunakan metode steam distillation dan steam-hydro distillation dengan pemanfaatan gelombang mikro (microwave). Beberapa faktor seperti pengaruh waktu operasi, perlakuan bahan (dicacah ±0.5–1 cm dan utuh), dan massa bahan juda dipelajari untuk mendapatkan rendemen dan mutu minyak cengkeh yang sesuai standar SNI. Metode yang digunakan adalah steam distillation dan steam-hydro distillation dengan microwave. Pada metode steam-hydro distillation dengan microwave ditambahkan solvent berupa air pada daun cengkeh untuk melarutkan minyak yang ada di dalamnya. Kondisi operasi untuk kedua metode ini adalah tekanan atmosferik (1 atm) dan suhu steam 108oC. Variabel massa yang digunakan adalah pada massa 50, 75, 100, dan 125 gram. Secara prinsip, steam yang dihasilkan mengangkat minyak dalam destiler kemudian steam dan uap minyak dikondensasi. Distilat yang berupa campuran minyak dipisahkan dari air sehingga didapatkan minyak cengkeh murni. Dari pernelitian yang dilakukan, pengambilan minyak cengkeh menggunakan metode steam-hydro distillation dengan microwave menghasilkan rendemen lebih banyak 0.07% sampai 1.77% untuk daun utuh dan untuk 0.03% sampai 1.96% daun cacah jika dibandingkan dengan metode steam distillation. Waktu optimum untuk metode steam distillation adalah 6 jam sedangkan untuk steam-hydro distillation dengan microwave adalah 2.5 jam. Setelah waktu optimum, rendemen minyak cengkeh yang dihasilkan cenderung konstan. Pencacahan bahan meningkatkan jumlah rendemen minyak cengkeh yang dihasilkan sebesar 0.05% sampai 0.36% untuk metode steam distillation dan 0.19% sampai 0.6%. untuk metode steam-hydro distillation dengan microwave. Rendemen minyak optimum untuk metode steam distillation pada 75 gram sedangkan untuk steam-hydro distillation dengan microwave pada 125 gram