1,392 research outputs found
Dynamic Data Security Assurance In Cloud Computing
We create cloud-helped remote detecting systems for empowering dispersed agreement estimation of obscure parameters in a given geographic range. We first propose an appropriated sensor system virtualization calculation that looks for, chooses, and directions Internet-available sensors to perform a detecting undertaking in a particular locale. The emergence of yet more cloud offerings from a multitude of service providers calls for a meta cloud to smoothen the edges of the jagged cloud landscape. This meta cloud could solve the vendor lock-in problems that current public and hybrid cloud users face. The cloud computing paradigm has achieved widespread adoption in recent years. Its success is due largely to customers’ ability to use services on demand with a pay-as-you go pricing model, which has proved convenient in many respects. Low costs and high flexibility make migrating to the cloud compelling. Despite its obvious advantages, however, many companies hesitate to “move to the cloud,” mainly because of concerns related to service availability, data lock-in, and legal uncertainties. Lock in is particularly problematic Our reproduction results demonstrate that the proposed calculation, when contrasted with traditional ADMM (Alternating Direction Method of Multipliers), diminishes correspondence overhead essentially without trading off the estimation mistake. Furthermore, the joining time, however builds somewhat, is still straight as on account of ordinary ADMM
Organogenesis induction in rice callus by cyanobacterial extracellular product
Cyanobacteria or blue green algae are prokaryotic photosynthetic microorganism that produces a wide array of substances, including plant growth regulators. In the case of growth regulators, gibberellin, auxin, cytokinin, ethylene, abscisic acid and jasmonic acid have been detected in cyanobacteria. Many substances have been added to plant tissue culture media in order to promote plant regeneration. The present research communication gives a report of the study of the effect of extracellular products of Plectonema sp., isolated from paddy fields on regeneration of rice. The endosperm of three rice varieties, IR 50, ASD 16 and ADT 36, were used as explants. IR 50 showed earlier and good callus induction response in MS medium. For root induction, cyanobaterial extracellular product was added instead of 2,4-D. The result showed that the number of days taken for root initiation and root growth was quicker by adding the extracellular products. Interestingly, more proliferation of roots in cyanobaterial extracellular product treatments was also observed compared to 2,4-D which might due to the production of growth regulators like auxin(s). Tremendous growth of root length and volume in short period indicate that MS with cyanobaterial extracellular product may also be used for screening of rice genotypes for water stress condition.Keywords: Callus induction, cyanobacterial extracellular products, Plectonema sp., rice, root inductio
Exome-wide association analysis reveals novel coding sequence variants associated with lipid traits in Chinese
published_or_final_versio
A multi-factorial analysis of response to warfarin in a UK prospective cohort
Background Warfarin is the most widely used oral anticoagulant worldwide, but it has a narrow therapeutic index which necessitates constant monitoring of anticoagulation response. Previous genome-wide studies have focused on identifying factors explaining variance in stable dose, but have not explored the initial patient response to warfarin, and a wider range of clinical and biochemical factors affecting both initial and stable dosing with warfarin. Methods A prospective cohort of 711 patients starting warfarin was followed up for 6 months with analyses focusing on both non-genetic and genetic factors. The outcome measures used were mean weekly warfarin dose (MWD), stable mean weekly dose (SMWD) and international normalised ratio (INR) > 4 during the first week. Samples were genotyped on the Illumina Human610-Quad chip. Statistical analyses were performed using Plink and R. Results VKORC1 and CYP2C9 were the major genetic determinants of warfarin MWD and SMWD, with CYP4F2 having a smaller effect. Age, height, weight, cigarette smoking and interacting medications accounted for less than 20 % of the variance. Our multifactorial analysis explained 57.89 % and 56.97 % of the variation for MWD and SMWD, respectively. Genotypes for VKORC1 and CYP2C9*3, age, height and weight, as well as other clinical factors such as alcohol consumption, loading dose and concomitant drugs were important for the initial INR response to warfarin. In a small subset of patients for whom data were available, levels of the coagulation factors VII and IX (highly correlated) also played a role. Conclusion Our multifactorial analysis in a prospectively recruited cohort has shown that multiple factors, genetic and clinical, are important in determining the response to warfarin. VKORC1 and CYP2C9 genetic polymorphisms are the most important determinants of warfarin dosing, and it is highly unlikely that other common variants of clinical importance influencing warfarin dosage will be found. Both VKORC1 and CYP2C9*3 are important determinants of the initial INR response to warfarin. Other novel variants, which did not reach genome-wide significance, were identified for the different outcome measures, but need replication
Dehydroepiandrosterone sulfate mediates activation of transcription factors CREB and ATF-1 via a Gα11-coupled receptor in the spermatogenic cell line GC-2
AbstractDehydroepiandrosterone sulfate (DHEAS) is a circulating steroid produced in the adrenal cortex, brain, and gonads. Whereas a series of investigations attest to neuroprotective effects of the steroid in the brain, surprisingly little is known about the physiological effects of DHEAS on cells of the reproductive system. Here we demonstrate that DHEAS acting on the spermatogenic cell line GC-2 induces a time- and concentration-dependent phosphorylation of c-Src and Erk1/2 and activates the transcription factors activating transforming factor-1 (ATF-1) and cyclic AMP-responsive element binding protein (CREB). These actions are consistent with the non-classical signaling pathway of testosterone and suggest that DHEAS is a pro-androgen that is converted into testosterone in order to exert its biological activity. The fact, however, that steroid sulfatase mRNA was not detected in the GC-2 cells and the clear demonstration of DHEAS-induced activation of Erk1/2, ATF-1 and CREB after silencing the androgen receptor by small interfering RNA (siRNA) clearly contradict this assumption and make it appear unlikely that DHEAS has to be converted in the cytosol into a different steroid in order to activate the kinases and transcription factors mentioned. Instead, it is likely that the DHEAS-induced signaling is mediated through the interaction of the steroid with a membrane-bound G-protein-coupled receptor, since silencing of Guanine nucleotide-binding protein subunit alpha-11 (Gnα11) leads to the abolition of the DHEAS-induced stimulation of Erk1/2, ATF-1, and CREB. The investigation presented here shows a hormone-like activity of DHEAS on a spermatogenic cell line. Since DHEAS is produced in male and female reproductive organs, these findings could help to define new roles for DHEAS in the physiology of reproduction
UPAYA MENINGKATKAN MOTIVASI BELAJAR SISWA MELALUI MEDIA GAME EDUCATION DALAM PEMBELAJARAN IPS DI MTs HASBUR RACHMAN ALIF DESA LENGKONG WETAN KABUPATEN MAJALENGKA
ASEP SAMSUL MA'ARIF :
Berdasarkan Observasiawal di kelas VII MTs Hasbur Rachman Alif terlihat
proses pembelajaran IPS masih menggunakan media spidol dan papan tulis. Sehingga
banyak siswa yang kurang memperhatikan guru pada saat proses pembelajaran., Hal
ini berakibat pada kejenuhan dan kebosanan yang berdampak pada hasil belajar siswa
yang kurang dari KKM yang diterapkan di MTs Hasbur Rachman Alif yakni 70.
Tujuan penelitian ini untuk mengetahui bagaimana penerapan pembelajaran
dengan menggunakan media Game Education pada mata pelajaran IPS Terpadu,
aktivitas siswa dan kinerja guru dengan pembelajaran dengan menggunakan media
Game Education, dan mengetahui motivasi belajar siswa sebelum dan setelah
diterapkannya pembelajaran dengan menggunakan media Game education pada mata
pelajaran IPS Terpadu di MTs Hasbur Rachman Alif.
Pembelajaran dengan menggunakan media Game Education menekankan
motivasi siswa untuk berpikir kritis dan menuangkan. Hal ini memudahkan siswa
untuk mengakses materi IPS yang banyak dimanapun, serta mempemudah daya
ingat siswa tentang apayatgtelah didapatkan selama proses pembelajaran.
Penelitian ini menggunakan Penelitian Tindakan Kelas (pTK) yang
dilaksanakan selama tiga siklus. Teknik Pengumpulan data menggunakan observasi,
tes, dan dokumentasi. Subjek penelitian ini adalah siswa kelas VII MTs Hasbur
Rachman Alif sebanyak 31 siswa yang terdiri dari 18 siswa laki-laki dan 13 siswa
perempuan.
Pembelajaran dengan menggunakan media Game Education dapat
meningkatkan motivasi belajar siswa hal ini terlihat dari hasil tes yang telah
dilakukan selama tiga siklus, dimana pada pratindakan (pretes) nilai sebesar 65,25
dan ketuntasan belajar 25 yo, siklus I nilai rata-rata sebesar 76,75 dan ketuntasan_
belajar siswa sebesar 65,5%o siklus II nilai rata-rata siswa 85,75 dan nilai ketuntasan
belajar sebesar 90% siklus III dengan nilai rata-rata 92,25 dan ketuntasan belajar
mengalami peningkatanya itu 97,5yo. Dengan demikian dapat disimpulkan bahwa
pembelajaran dengan menggunakan media Game Education merupakan salah satu
upaya untuk meningkatkan hasil belajar siswa pada mata pelajaran IPS Terpadu di
MTs Hasbur Rachman Alif.
Kata Kunci: Game Education, MotivasiBelajar, PTK
Common variation in PHACTR1 is associated with susceptibility to cervical artery dissection
Cervical artery dissection (CeAD), a mural hematoma in a carotid or vertebral artery, is a major cause of ischemic stroke in young adults although relatively uncommon in the general population (incidence of 2.6/100,000 per year). Minor cervical traumas, infection, migraine and hypertension are putative risk factors, and inverse associations with obesity and hypercholesterolemia are described. No confirmed genetic susceptibility factors have been identified using candidate gene approaches. We performed genome-wide association studies (GWAS) in 1,393 CeAD cases and 14,416 controls. The rs9349379[G] allele (PHACTR1) was associated with lower CeAD risk (odds ratio (OR) = 0.75, 95% confidence interval (CI) = 0.69-0.82; P = 4.46 × 10(-10)), with confirmation in independent follow-up samples (659 CeAD cases and 2,648 controls; P = 3.91 × 10(-3); combined P = 1.00 × 10(-11)). The rs9349379[G] allele was previously shown to be associated with lower risk of migraine and increased risk of myocardial infarction. Deciphering the mechanisms underlying this pleiotropy might provide important information on the biological underpinnings of these disabling conditions
Identificaçao microscópica de pelos de mamíferos brasileiros e sua aplicaçao no estudo da dieta de carnívoros
Orientadora : Emygdio L. A. Monteiro-FilhoTese (doutorado) - Universidade Federal do Paraná, Setor de Ciencias Biológica
Calcium Phosphate Metabolism and Cardiovascular Disease in Patients with Chronic Kidney Disease
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/73791/1/j.1525-139X.2003.160301.x.pd
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