30 research outputs found
Utilization of Palm Wastes for Production of Invert Sugar
No full textAbstractAn economically attractive technique was adopted using date palm fibers as a new carrier for invertase adsorption and for invert sugar production. Experiments were carried out to evaluate the results of incubation of Baker's yeast with palm fibers in aqueous solution at 40° C for half an hour. CO2 produced from this reaction was employed as a reactant and it succeeded to modify the cellulosic surface of the palm fibers. This increased the capacity of invertase that had been secreted from Baker's yeast to be immobilized tightly on the cellulosic surface of the fibers. These results confirmed by FTIR and SEM. Characterization of the enzyme indicated that 1 gram of immobilized invertase on such wastes can produce 600mg of invert sugar. By this technique, Egypt would be able to supply 6 million kg invert sugar per year. Molasses used instead of sucrose to assess the sustainability of the process
Study on the preparation and properties of silver-doped phosphate antibacterial glasses (Part I)
No full textOverview of Indonesian Islamic Education: A Social, Historical and Political Perspective
No full textThe aim of this study is to examine how the historical genealogy of Islamic educational tradition, particularly the tradition of teaching and learning, has contributed to the development of Islamic education in Indonesia. By drawing together in an analytic way a historically based description of the social and political circumstances surrounding Indonesian Islamic education, the study discusses some significant issues concerning the religious base, knowledge base, structural form, and the pedagogical approach of Indonesian Islamic education, all of which are important to the development of a modern form of Islamic education.
The argument of the thesis is that the existing values of the Islamic tradition in education, particularly evident in Madrasah schools, provide a valuable basis for further developing and reconstructing an effective Islamic education system in Indonesia. However, there is also a strong need to construct an Islamic education curriculum in Indonesia that can meet the challenge posed by the circumstances generally understood as 'modernity'. The quality of teaching and learning in the Madrasah are very much influenced by the quality of the wider Islamic education programme. Any change in the curriculum of Islamic education will thus have significant effects on the quality of the Madrasah schools in Indonesia. This thesis will thus conclude by suggesting some implications for further development of Islamic education that arise from the study.
This is a qualitative study using an historical genealogical approach to discover, understand and analyze the challenges currently facing Islamic education In Indonesia. The techniques for collecting data involved, primarily, a critical reading of historical and contemporary policy documents. Primary and secondary sources were also collected, studied and subjected to a critical reading in the production of this account of Indonesian Islamic education
Intravitreal ziv-aflibercept in diabetic vitreous hemorrhage
No full textBackground: To evaluate the safety and efficacy of intravitreal ziv-aflibercept (IVZ) in the management of vitreous hemorrhage (VH) in eyes with previously lasered proliferative diabetic retinopathy (PDR). Methods: In a prospective multicenter study, previously lasered eyes who had dense VH from PDR underwent intravitreal injection of ziv-aflibercept (IVZ) (1.25 mg aflibercept). Demographic characteristics of the patients, baseline and final logMar visual acuity, number of injections, VH clearance time, and need for vitrectomy were recorded. Results: Twenty-seven eyes of 21 patients were included in the study. Mean age of study patients was 61.3 ± 14.1 years with mean duration of diabetes mellitus of 22.6 ± 7.8 years. Mean logMAR BCVA at baseline was 1.41 ± 1.26 (Snellen equivalent 20/514) and at the last visit 0.55 ± 0.61 (Snellen equivalent 20/70) with a mean gain of 0.86 EDTRS line (paired student t test = 5.1; p ≤ 0.001). Mean number of IVZ 2.4 ± 1.6 (range 1-6). The mean follow-up time was 11.7 ± 11.1 months (range 1-34). Mean time for visual recovery and/or VH clearance was 5.7 ± 3.3 weeks. Eyes, which required multiple injections, the interval period between injections for recurrent VH was 6.4 ± 5.2 months. No subject required vitrectomy. No ocular or systemic adverse effects were noted. Conclusions: IVZ injections had good short-term safety and efficacy for the therapy of new or recurrent VH in previously lasered eyes with PDR reducing somewhat the need for vitrectomy. Trial registration: NCT02486484 © 2020 The Author(s)
The Arab Gulf countries and the Arab- Israeli conflict;: the linkages and dynamics (1970-2000)
No full textThis thesis examines the changing linkages and dynamics of the relationship between the Arab Gulf countries and the Arab-Israeli conflict through the period of 1970-2000. The Arab Gulf countries' level of involvement in supporting the Arabs and Palestinians in the Arab-Israeli conflict diminished throughout the period of study. The thesis explains this diminishing role by discussing the impact of the developments of international struggle for influence in the Gulf as well as the Israeli ambitions and relations to the Gulf region, largely expressed through the Israeli relationship with Iran under the Shah. The thesis shows that the years 1973, 1979 and 1990 formed important turning points for international influence in the region. These turning points influenced on the level of the Arab Gulf countries' involvement in the Arab-Israeli conflict. Throughout the seventies, the Arab Gulf countries played an active role in supporting the Arab side in the Arab-Israeli conflict. The clearest expression of this support was the implementation of the oil embargo against the West during the October 1973 War. The eighties witnessed the birth of the Gulf Cooperation Council (GCC), the formation of which symbolized the emerging security challenges within the Gulf region. These security challenges represented by the Iranian Revolution, the Iran-Iraq war and the Soviet invasion and occupation of Afghanistan exhausted most of the capabilities and efforts of the Arab Gulf countries. Their focus and attention shifted away from the Arab-Israeli conflict, in spite of the serious and dramatic developments in that conflict. The repercussions of the Iraqi invasion of Kuwait in 1990 resulted in a further diminishment of the role of the Arab Gulf countries in backing the Palestinians in the Arab-Israeli conflict. Only after September 2000 and the beginning of the Second Palestinian Intifada did the Arab Gulf countries again play a vital role, by means of financial, political and media support. The thesis explains the linkages between security in the Gulf and the Arab- Israeli conflict. It examines the hypothesis that a reciprocal relationship explaining the level and type of Arab Gulf countries involvement in the Arab-Israeli conflict has existed throughout the period of the study
Safety of 5914 intravitreal ziv-aflibercept injections
No full textPurpose To analyse the pooled safety data of intravitreal ziv-aflibercept (IVZ) therapy for various retinal conditions. Methods This was a retrospective, observational study which included patients from 14 participating centres who received IVZ. The medical records of patients who received IVZ from March 2015 through October 2017 were evaluated. Patient demographics and ocular details were compiled. Ocular and systemic adverse events that occurred within 1 month of IVZ injections were recorded and defined as either procedure-related or drug-related. Results A total of 1704 eyes of 1562 patients received 5914 IVZ injections (mean±SD: 3.73±3.94) during a period of 2.5 years. The age of patients was 60.6±12.8 years (mean±SD) and included diverse chorioretinal pathologies. Both ocular (one case of endophthalmitis, three cases of intraocular inflammation, and one case each of conjunctival thinning/necrosis and scleral nodule) and systemic adverse events (two cases of myocardial infarction, one case of stroke and two deaths) were infrequent. Conclusion This constitutes the largest pooled safety report on IVZ use and includes patients from 14 centres distributed across the globe. It shows that IVZ has an acceptable ocular and systemic safety profile with incidences of adverse events similar to those of other vascular endothelial growth factor inhibitory drugs. The analysis supports the continued use of IVZ in various retinal disorders. © 2019 Author(s)
Search for a CP-odd Higgs boson decaying to Zh in pp collisions at root s=8 TeV with the ATLAS detector
No full textSee paper for full list of authors – 13 pages plus author list + cover pages (30 pages total), 5 figures, 2 tables, submitted to Phys. Lett. B, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2013-06/International audienceA search for a heavy, CP-odd Higgs boson, , decaying into a boson and a 125 GeV Higgs boson, , with the ATLAS detector at the LHC is presented. The search uses proton--proton collision data at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 20.3 fb. Decays of CP-even bosons to or pairs with the boson decaying to electron or muon pairs are considered, as well as decays with the boson decaying to neutrinos. No evidence for the production of an boson in these channels is found and the 95% confidence level upper limits derived for \sigma (gg\rightarrow A) \times \mbox{BR}(A \rightarrow Zh) \times \mbox{BR}(h \rightarrow f\bar{f}) are 0.098--0.013 pb for and 0.57--0.014 pb for in a range of 220--1000 GeV. The results are combined and interpreted in the context of two-Higgs doublet models
Measurement of the differential inclusive B+ hadron cross sections in pp collisions at s=13 TeV
No full textThe differential cross sections for inclusive production of B+ hadrons are measured as a function of the B+ transverse momentum pT B and rapidity yB in pp collisions at a centre-of-mass energy of 13 TeV, using data collected by the CMS experiment that correspond to an integrated luminosity of 48.1 pb−1. The measurement uses the exclusive decay channel B+→J/ψK+, with J/ψ mesons that decay to a pair of muons. The results show a reasonable agreement with theoretical calculations within the uncertainties. © 2017 The Author(s
Search for a heavy composite Majorana neutrino in the final state with two leptons and two quarks at s=13TeV
No full textA search for physics beyond the standard model in the final state with two same-flavour leptons (electrons or muons) and two quarks produced in proton–proton collisions at s=13TeV is presented. The data were recorded by the CMS experiment at the CERN LHC and correspond to an integrated luminosity of 2.3fb−1. The observed data are in good agreement with the standard model background prediction. The results of the measurement are interpreted in the framework of a recently proposed model in which a heavy Majorana neutrino, Nℓ, stems from a composite-fermion scenario. Exclusion limits are set for the first time on the mass of the heavy composite Majorana neutrino, mNℓ, and the compositeness scale Λ. For the case mNℓ=Λ, the existence of Ne (Nμ) is excluded for masses up to 4.60 (4.70) TeV at 95% confidence level. © 2017 The Author(s
Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at √s = 8 TeV
No full textAbstract: A search is presented for standard model (SM) production of four top quarks (Formula presented.) in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6 fb−1 recorded at a centre-of-mass energy of 8 TeV with the CMS detector at the CERN LHC. The expected cross section for SM (Formula presented.) production is (Formula presented.). A combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal and large background. The data are consistent with expectations of the SM, and an upper limit of 32 fb is set at a 95% confidence level on the cross section for producing four top quarks in the SM, where a limit of 32 ± 17 fb is expected.[Figure not available: see fulltext.]. © 2014, The Author(s)
